Sunday, August 13, 2017

Anaerobic Digester Cleaning - Why Clean? Plus Biogas Tank Pumping Contractors

Digester Cleaning - Why Do it?

The most common reason for anaerobic digestion plant digester cleaning by Digester Cleaning Contractors, is to restore digesters to optimum biogas output.

However, it may also be necessary to empty digester tanks simply to inspect them for wear or corrosion, and cleaning may also be needed in order to repair leaks.

When digester tanks are drained there will normally always be a lot of grit, stones, and general trash left in the bottom.

This will need to be removed, and doing this is usually considered to be a specialist job. The reason why the digester operator is well advised not do this using in-house staff is normally due to the health and safety hazards involved.



 It is encumbent upon all biogas plant operators globally to ensure that the digester cleaning contractors awarded this work are properly experienced and apply all local regulations both in connection with their work on-site, but also act responsibly to dispose of the materials which are removed from digester tanks during cleaning.
Some older biogas tank installations have to be emptied before worn out mixers and other internally fitted equipment can be replaced.

Celvac's Mobile Digester Cleaning Rig


In the UK and Europe the ATEX Regulations apply to digester tanks, due to the potential for there to be explosive biogas in digester tanks after emptying. Each EU country has its own daughter regulations which apply the ATEX Directives in member states. In England and Wales the ATEX Directive is applied within the DSEA Regulations.
In the US the The National Institute for Occupational Safety and Health (NIOSH), is the point of reference for ensuring safety during these works.

A common reason for anaerobic digestion plant digester cleaning by Digester Cleaning Contractors, is to restore digesters to optimum biogas output, however, it may also be necessary to empty digester tanks simply to inspect them for wear or corrosion, and cleaning may also be needed in order to repair leaks.
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More Information about digester cleaning:
Digester Cleaning - GTS Maintenance Limited
www.gtsnitrogenservices.co.uk/digester-cleaning
Using silt separation equipment, we are able to carry out effective digester cleaning, while preventing fine materials being carried over. Contact us on 01773 ...
Digester Tank Cleaning, Wastewater Digester Cleaning | Digester ...
www.caryloncorp.com/digester-cleaning.html
Overloading, lack of adequate oxidation time, loss of gas recovery, or invasion of crustacea, grit and trash, can cause a wastewater digester to function at only a ...
Digester Cleaning (inside cone of Digester) - YouTube
? 9:05
https://www.youtube.com/watch?v=boZ07HLYJDs
29 Dec 2009 - Uploaded by Vergil McGrath
North American Digester Cleaning Services is performing a Digester clean-out. Video is shot from manhole of ...
Digester Cleaning - Synagro
www.synagro.com › Offerings
Synagro can serve your cleaning and servicing needs for aerobic and anaerobic digesters, aeration basins, storage tanks and other municipal and industrial ...
Digester & Sludge Tank Cleaning | Burch Hydro Inc.
burchhydro.com/Services/Digester-Tank-Cleaning
Digester and Sludge Tank Cleaning Services. Removal of residual sludge from digesters and other storage and process tanks can often be unexpectedly ...
https://en.wikipedia.org/wiki/Anaerobic_digestion
Anaerobic digestion is a collection of processes by which microorganisms break down ... Anaerobic digesters can also be fed with purpose-grown energy crops, such as maize. ..... gas scrubbing and cleaning equipment (such as amine gas treating) will be needed to process the biogas to within regionally accepted levels.
Anaerobic digester types - Wikipedia
https://en.wikipedia.org/wiki/Anaerobic_digester_types
The following is a partial list of types of anaerobic digesters. These processes and systems ... Appropriate technology · Clean technology · Environmental design · Environmental impact assessment · Sustainable development · Sustainable ...
Digester - Wikipedia
https://en.wikipedia.org/wiki/Digester
A digester is a huge vessel where chemical or biological reactions are carried out. These are used in different types of process industries.
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Tuesday, August 08, 2017

Agricultural Farm Slurry Pumps and Pumping - Save Money with Borger and Gissing FE

We are pleased to be able to report that highly significant savings have been achieved in agricultural slurry pumping costs at a farm-based AD Plant in Lincolnshire, as reported by Borger Pumps in combination with their agricultural products distributor Gissing FE.

 Watch our video below, or read the written article below, and we think that you will agree that this seems to be exactly what has been done by a clever combination of skills.



It's a combination of pump specialist Borger's skills, and the practical application of know-how by Gissing FE, made possible by an in-depth appreciation of what the farmer needs.

 This has reportedly made great savings by getting advanced pump technology work on the ground for the farmer. In fact, they do seem to have worked a bit of magic, with this trailer mounted product!

The trailer mounted pump system and Bioselect Slurry Separator (also known as a Digestate Separator ) can be moved easily to where it is needed, and the case study farm businesses previous problems with high maintenance and the need to run multiple centrifugal pumps to achieve necessary high pressures, appear to have been solved. Solved with a low maintenance and low running cost solution.

 However, the exact methods used are quite complex, so we recommend that you either watch the video above, or read the article below.

Gissing's custom-built slurry pumping container system with Borger's pumps, BioSelect Separator, and macerator,


If, after watching one, you are still in need of an understanding of some of the finer points, we suggest that you watch and read both.

There are a lot of positives to take-in before fully understanding this press release. Press Release:

Big Agricultural Slurry Pumping Savings Achieved at Farm-Based AD Plant

A Borger macerator and two pumps from Borger are helping provide significant agricultural slurry pumping and handling savings at a farm-based AD plant in Lincolnshire.

Part of a custom-built trailer system designed and built by Gissing FE, exclusive distributors of Borger’s equipment for the UK agricultural market, the macerator handles digestate from the farm’s lagoon, whilst the new rotary lobe pumps have replaced inefficient centrifugal units.

Requiring just the one generator to power three electric motors, Gissing’s space-saving (20’ by 15’, including pipework) container system reduces emissions for a spreading operation that would usually need two to three large tractors, plus the diesel and manpower to go with it.
“Previously,” said Jason Gissing, the farmer had to have three centrifugal pumps in line, which with three lots of fuel, was very inefficient.  The impellers on this design of pump will only spin so fast without being able to handle the digestate from the AD plant – and they were also heavy on wearing parts and very time-consuming to service." “However, with the self-priming Borger pumps”, he added, “they hold their pressure much longer to supply a higher volume of slurry – and with their Maintenance-In-Place design, are much, much easier to service – half the time or less than the centrifugal pumps”.
To further benefit the farm’s AD plant, Gissing has also designed its bespoke container system so that it can be utilised for spreading as well as stirring the lagoon.

The Borger pumps can be started, stopped, revved up and down – all from the operator’s cab – from where the driver can also see what flow rates are being achieved, and if necessary, divert.

 Gissing’s experience in the UK agricultural market goes back to 1938.  The company is a fourth-generation family-owned and run team of specialists.

 Borger is owned and run by its founder Alois Börger (who began the company almost 40 years ago), together with his family. In addition to its pumps and macerators,

Borger also supplies its BioSelect Separator for the AD/agricultural market.  The Separator has throughputs up to 150m3/h, and can be very easily integrated into an existing system or used as a mobile separator (trailer based).

via Börger UK Limited - 01902 798977

email: uk@boerger.com

Advances in Agricultural Slurry Pumping Just One Example of UK Anaerobic Digestion Industry Innovation

While the UK anaerobic digestion industry is lacking in government support, as we have reported previously in this blog, and although badly in need of decisions on funding such as the Renewable Heat Incentive (RHI), it can still innovate.

This Press Release once again shows that there is still enormous potential for the anaerobic digestion industry to reduce its biogas production costs, and as it reduces its overheads and passes a proportion of that on to its energy customers, its cost competitiveness with traditional fossil fuel based fuels will improve.

 All that is needed is for some short term funding from the UK government to provide the industry with enough confidence to continue investing in technology advances of the sort we see in this press release, and the future of AD will expand greatly.

 There are admittedly some current problems with availability of some organic feedstock materials, however, there are also many untapped organic feedstock sources which will come available as the cost of anaerobic digestion falls and further innovation, and thus efficiency improvements take place. 

There has also been an explosion in academic research in AD in the last 5 years, new AD processes have been shown to be viable and many variations on existing practices have been researched and shown to have potential.

Very little of that work has yet flowed into the AD industry, and given time, it will do so.

 But, very often it is the basic solutions once achieved in what may look like an obvious and simple progression, after they have been done, that can have as big an impact as any number of academic reports.

 It is very possible that what we have seen here in Gissings trailer-mounted Borger equipment is an example of that.

An example of the sort of practical advances which bring the biggest results. In this case study, we think that enabling the system to be run off a generator and used almost anywhere on the farm brings the practicality of the Borger equipment up to a new level of usefulness.

We think that what we have seen confirms the value of the agricultural slurry pumping savings reported at a farm based AD plant, as reported by Borger working with with Gissing FE.

Saturday, August 05, 2017

Digestate Separation Using the Borger Bioselect Digestate Separator

In this article we suggest the five top Advantages of Digestate Separation using the Borger Bioselect digestate separation technology, available from manufacturer Börger GmbH, Borken-Weseke, Germany.

What are Borger Bioselect Digestate Separators?

Borger Bioselect Digestate Separator system is achieved using the proven system for digestate pumping, storage, and separation offered by this well-established company.



The Borger Bioselect separator brings to all AD Plant Operators the ability to separate solid fibrous digestate leaving the biogas reactor from the liquid, reliably and cost-effectively.

WHY SEPARATION?

1. Separating the solid fibres which leave the biogas reactor, from the liquid portion of digestate means that overall digestate storage capacity needed at the AD plant is reduced during the maturation period.
2. New uses emerge for both liquid and solid digestate. The separated solid is used by some as an energy source, but usually it is left in windrows for a period before being used as a soil improver and spread back onto the land
3. The Solid Phase can be dewatered to an optimum water content for use as bedding for cattle
4. Liquid Phase is most often used as a fast-acting crop fertilizer, and is easier to sell off-farm after separation.
5. The Liquid phase can then be injected into the soil, meaning no possibility of etching damage to the plants.

WHY NOT FIND OUT MORE ABOUT THE 'BORGER BIOSELECT' DIGESTATE SEPARATION SYSTEM?

The Borger Bioselect digestate separator is a purely mechanical device with low maintenance requirements and needs no chemicals to run, simply switch the system on and start separating!

What Others Are Saying About the Borger Bioselect Digestate Separator - A Web Roundup

The Bioselect BS is a combination of the separation machine and two Rotary Lobe Pumps. These three drive units are joined with a special control unit with various control and safety components.
The separator is load-triggered. The feed pump only conveys the volume which the Bioselect BS is able to process. The high density solids discharge pump determines the degree of thickness. via Pandct.com

“We had a great response to this new product at last year’s show”, said Borger UK’s Managing Director, David Brown, “so it’s time now to give it centre stage. AD operators and farmers seem to like it for the throughputs (up to 60m3/h) and because it can be very easily integrated into an existing system or used as a mobile separator”.
Combining a separator and two Maintenance-In-Place (MIP) Borger rotary lobe pumps, the Bioselect separator is load-triggered, whilst the feed pump ensures that volumes do not exceed capacity. The high density solids-discharge-pump determines the degree of thickness, so the user can (for example) thicken 4 per cent dissolved solids (DS) content liquid into 12 per cent DS to make it suitable for a tanker.
https://www.pinterest.com/pin/121597258672786521/
The Börger Bioselect Separator provides efficient separation technology. Using a purely mechanical process, liquid parts are separated from solid parts in the medium (such as digestate or liquid manure).

The installation options of the Börger Bioselect are as versatile as their requirements. Whether attached to a simple wall bracket, installed on a movable frame with an upstream macerator or as a mobile version with a conveyor belt – the application options of the Bioselect are unique. via AgricultureMachineryBusiness.com

Friday, August 04, 2017

How to Stop Climate Change with Biogas from Sea Kelp Cultivation


How farming giant seaweed can feed fish and fix the climate

Seaweeds can grow very fast – at rates more than 30 times those of land-based plants.



Because they de-acidify seawater, making it easier for anything with a shell to grow, they are also the key to shellfish production. And by drawing CO₂ out of the ocean waters (thereby allowing the oceans to absorb more CO₂ from the atmosphere) they help fight climate change.

The stupendous potential of seaweed farming as a tool to combat climate change was outlined in 2012 by the University of the South Pacific’s Dr Antoine De Ramon N’Yeurt and his team.

Their analysis reveals that if 9% of the ocean were to be covered in seaweed farms, the farmed seaweed could produce 12 gigatonnes per year of biodigested methane which could be burned as a substitute for natural gas.

The seaweed growth involved would capture 19 gigatonnes of CO₂. A further 34 gigatonnes per year of CO₂ could be taken from the atmosphere if the methane is burned to generate electricity and the CO₂ generated captured and stored.

This, they say:

…could produce sufficient biomethane to replace all of today’s needs in fossil-fuel energy, while removing 53 billion tonnes of CO₂ per year from the atmosphere… This amount of biomass could also increase sustainable fish production to potentially provide 200 kilograms per year, per person, for 10 billion people. Additional benefits are reduction in ocean acidification and increased ocean primary productivity and biodiversity.

Nine per cent of the world’s oceans is not a small area. It is equivalent to about four and a half times the area of Australia.

But even at smaller scales, kelp farming has the potential to substantially lower atmospheric CO₂, and this realisation has had an energising impact on the research and commercial development of sustainable aquaculture.

But kelp farming is not solely about reducing CO₂. In fact, it is being driven, from a commercial perspective, by sustainable production of high-quality protein.How farming giant seaweed can feed fish and fix the climate via How farming giant seaweed can feed fish and fix the climate - Reddit: Futurology

Now, I am taking a bit of licence here by including this summary because the author is using the term biomethane as being synonymous with biogas (as most people do in India - the commentator is an Indian Academic), however if, rather than using this energy as electricity it was used to provide CNG (compressed natural gas) also called liquefied renewable natural gas (RNG) it would be even more effective in reducing climate change.

The above is a Reddit comment which summarises the following article:

Bren Smith, an ex-industrial trawler man, operates a farm in Long Island Sound, near New Haven, Connecticut.

Fish are not the focus of his new enterprise, but rather kelp and high-value shellfish. The seaweed and mussels grow on floating ropes, from which hang baskets filled with scallops and oysters. via theconversation.com

More Information about how to reverse climate change:

100 Practical Ways to Reverse Climate Change - National Geographic
news.nationalgeographic.com/.../climate-change-global-warming-drawdown-hawken/
28 May 2017 - When National Geographic caught up with Hawken at his home in San Francisco, he explained why climate change is a gift, not a curse; why ...

A Formula to Reverse Climate Change — The Carbon Underground ...
https://thecarbonunderground.org/the-formula-is-easier-than-you-think/
The data suggest strongly that we can actually reverse climate change, not simply slow it down. Lots of data. And while different studies may use different ...

Regenerative Development to Reverse Climate Change Workshop ...
thecommonwealth.org/.../regenerative-development-reverse-climate-change-workshop...
What more can we do to tackle the challenge of climate change? Is it possible to reverse its impact? Leading scientists and climate experts will meet to explore ...
Climate change mitigation - Wikipedia

https://en.wikipedia.org/wiki/Climate_change_mitigation
Climate change mitigation consists of actions to limit the magnitude or rate of long-term climate change. Climate change mitigation generally involves reductions ...

Greenhouse gas ... · Methods and means · By sector · Costs and benefits
...million years ago by flourishing marine phytoplankton; reversal of global warming 49 million years ago by 800,000 years of arctic azolla blooms ...
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Sunday, July 30, 2017

Prioritise Biomethane Use for Buses and HGVs ADBA Biogas Biobus Transport

"Prioritising Biomethane for HGVs and Busses Within UK Clean Air Strategy say ADBA, Should be an Immediate UK Government Goal"

The UK government has just announced plans to phase out petrol and diesel vehicles from the UK.

This is going to bring into sharp focus the need for rapid development in many directions for transport, over the next 20 plus years, from the car technology we will drive, to the infrastructure for refuelling.

 Not least there will be an increased demand for renewable fuels. So, the news must be good for the biogas industry, and the bigger focus on renewable energy which it will bring. On this blog, we bring you a round-up on the news for biomethane in the light of this announcement.

Biomethane is created by biogas plants which have added equipment to "upgrade" their raw biogas to a purer quality and compress it.

When suitably upgraded it is often called CNG (Compressed Natural Gas) and can then be used to power vehicles.

Biomethane is ideal for powering very low emission vehicles. --- This Video was made for this page, so if you like to watch a video better than reading, we recommend that you watch this video! ---

ADBA Urges Government to Prioritise Biomethane for HGVs & Busses

UK trade body, the Anaerobic Digestion and Bioresources Association (ADBA), has called on the government to make the fuelling of busses and heavy goods vehicles by clean biomethane central to its Clean Air Strategy (i. e. Biomethane for HGVs).

 The organisation explained that biomethane is a low-carbon transport fuel produced by the anaerobic digestion (AD) of organic wastes to create a biogas which can then be upgraded to create a methane-based fuel. 
 According to ADBA, the UK AD industry already has sufficient capacity today to produce enough biomethane to power the UK’s entire bus fleet, and the use of biomethane for buses and HGVs has increased in recent years in response to concerns over the cost of fossil-fuel-based fuels and their negative impact on air quality and greenhouse gas emissions. 

via ADBA Urges Government to Prioritise Biomethane for HGVs & Busses

Biofuels - Biomethane must be central to UK Clean Air Strategy say ADBA

Biomethane is a low-carbon transport fuel produced by anaerobic digestion (AD), a natural process that breaks down organic wastes and purpose-grown crops to create a biogas that can then be upgraded to create a methane-based fuel.

 The UK AD industry currently has sufficient capacity to produce enough biomethane to power the UK’s entire bus fleet (Biomethane for HGVs), and the use of biomethane for buses and HGVs has increased in recent years in response to concerns over the cost of fossil-fuel-based fuels and their negative impact on air quality and greenhouse gas emissions. For instance, in May, Nottingham City

Transport’s unveiled a new £17 million double-deck ‘Bio-Gas’ bus fleet, the largest of its kind in the world. ADBA’s call to arms comes as the Department for Environment, Food and Rural Affairs (DEFRA) has today (26 July 2017) published its plan to deliver nitrogen dioxide compliance in UK towns and cities, part of a wider Clean Air Strategy due to be published in 2018.

The measures unveiled by DEFRA include £255 million of funding for local authorities to crack down on roadside emissions, including from busses and other types of public transport.

Local councils will be required to produce local air quality plans that reduce nitrogen dioxide levels in the fastest possible time, while local authorities will be able to bid for money from a new Clean Air Fund to support improvements that will reduce the need for restrictions on polluting vehicles. This could include upgrading bus fleets.

  The new measures announced also include the right for van drivers to use heavier vehicles if they are electric or gas-powered.
 “The use of biomethane derived from well-managed feedstocks as vehicular fuel can help to reduce the scandalous levels of air pollution we see in towns and cities across the UK, costing thousands of lives each year” 
said ADBA Chief Executive Charlotte Morton.

 “Local authorities reading the Government’s air quality plans now have the perfect opportunity to follow the example of Nottingham City Transport and others in rolling out biomethane-fuelled municipal bus fleets, which can make huge improvements to air quality in the UK’s towns and cities. 

Over the short to medium term, biomethane presents the only practical means of decarbonising HGVs, buses and non-road mobile machinery. 

 While biomethane has the potential to power every HGV in the country and some pioneers have grasped this opportunity, far more support is needed from government to make it easier for others to follow their example.

 It’s critical that the Government urgently delivers a robust response to the Renewable Transport Fuel Obligation consultation that concluded in January.

A biomethane (biogas) powered bus - Unfortunately, called the poo bus by many...
Long-term support for AD is crucial for reducing emissions from the difficult-to-decarbonise transport sector and for improving air quality in our cities and towns to save lives.”

 To reflect the growing interest in low-carbon fuels such as biomethane, ADBA will be hosting the third UK Biomethane and Gas Vehicle Conference on 28 September 2017 at the Queen’s Hotel in Leeds, bringing together transport, fuel infrastructure, freight, and logistics professionals and local authorities to share the benefits of biomethane and discuss what is required to stimulate and grow the market.

via Biomethane must be central to UK Clean Air Strategy say ADBA

The Anaerobic Digestion and Bioresources Association (ADBA ... which outlines steps to be taken to reduce emissions of Nitrogen Dioxide across the UK. Under the plan, local authorities are expected to deliver local proposals to clean up their air within their local areas.

Renewables

Also commenting on the government’s plan, James Court, head of policy and external affairs at the Renewable Energy Association, backed plans for an increased use of renewables in the fuel mix. He said:
“The government can also take steps to reduce carbon emissions and urban pollution today by increasing the amount of renewable biofuels in the petrol mix. 
 “The UK’s renewable fuel industry supports over 10,000 jobs and has attracted more than a billion pounds of investment in the UK’s renewable fuel manufacturing infrastructure, and is critical during the transition towards an electrified fleet.”
Mr Court emphasised that electric vehicles will be an essential part of the future energy system that can;
“improve air quality, decarbonise transport and optimise the UK’s energy infrastructure”. 
But that we need government action to use renewable energy to power electric vehicles, and ensure a “genuinely decarbonised sector”.

via Renewable energy ‘has a role to play’ in Clean Air Plan

ADBA and REA have called on the government to increase the use of renewable biomethane to fuel vehicles, as part of efforts to tackle air pollution in the UK.

Yesterday (26 July), the government published a national plan for tackling roadside Nitrogen Dioxide concentrations as part of its upcoming Clean Air Strategy due in 2018.

The latest policy proposals aim to fight air pollution at a local level and include a commitment to end the sale of new diesel and petrol only vehicles from 2040.

 Under the government’s plans, local authorities are expected to deliver plans to clean up their air within the next eight months.

The government is offering funding support for changes such as retrofitting and low emission bus technology. via AD biogas ‘can help air quality crisis’   

Friday, July 28, 2017

How Biogas Plant Pumps Drive the Anaerobic Digestion Process

Watch this video for info about Verderflex HUS Screw-channel pumps which have proven to be excellent pumps for anaerobic digestion.

Read here about two examples: “Recovery of waste food” and “production of biogas”.

Case Study: A prestigious brewery based in Norfolk, who produce fine quality real ales have installed an anaerobic digestion (AD) facility for producing biogas to be inputted into the national gas grid. The anaerobic digestion facility is fed with kerbside-collected food waste, food processing waste, supermarket food waste and brewery waste.

Biogas plant pumps are what drives the Anaerobic Digestion Process in all biogas plants.

They are literally the heart of the process. If a biogas plant pump stops working and there is no standby pump, the process will no longer be fed and a biogas production slowdown will start.

Soon, if pumping is not resumed, the plant will shut-down and vital revenue from the products the plant produces, especially the biogas production, will be lost.

 AD Plant down-time is extremely expensive, and also highly damaging to the service that the biogas business is contracted to provide for its customers.

It hardly needs to be stressed here, how important it is that the pumping equipment is of the highest order of reliability, and many would advise that only a specialist pump supplier to the AD industry, with a strong reputation for reliability, can provide the AD plant operator with that level of service. 

The content of this page is summarised in the video below, so you can now find out about Biogas Plant Pumps, by watching our video!



The organic matter is entered into a feed inlet at the start of the process where a rotor chopper breaks down the raw material.

Verderflex pumps move the chopped slurry from holding tanks and through a heat exchanger to raise the temperature prior to entering the main AD facility.

As the hot organic material enters the main AD facility it is dosed reliably and accurately by a Verderflex Dura pump with an inorganic pH buffer to accelerate and maximize the breakdown of the material. The large mass of organic material is ‘churned’ by Verderflex pumps in a plant room connected through a series of pipes to maximize the surface area and further accelerate the AD process and obtain the greatest yield of heat and biogas.



The heat is recycled back into the heat exchanger.
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More Information about biogas plant pumps:
Pumps for Biogas Plants: ZUWA-Zumpe GmbH - Pumpen und ...
www.zuwa.de › Home › Solutions
Pumps for Biogas Plants. Functions of a biogas plant: semi-liquid manure dump; receiving area for renewable raw materials; fermenter with biogas storage and ...
Pumps for Biogas Plants - energypedia.info
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www.lsmpumps.com/applications/biogas/
Now, we also help pumping biogas through the system. ... new, we have started supplying pumps for biogas plants, where we pump biomass within the plant.
Biogas: pumps and valves for energy efficiency in biogas plants | KSB
https://www.ksb.com/ksb-en/Products_and_Services/waste-water/Biogas/
KSB reduces the energy consumption of biogas plants using highly efficient ... the Amarex KRT pump and the Hera gate valve ensure everything runs smoothly.
Biogas plant - Biogas / agriculture | Börger Pumps - Boerger
www.boerger.com/en_UK/industry-solutions/biogas-agriculture/biogas-plant.html
The operator of a biogas plant was not satisfied with the rotary lobe pumps in use made by a competitor. The pumps showed signs of severe wear on the rotors ...
Progressing cavity pumps successfully used in the biogas plant ...
https://pumps.netzsch.com/en/materials-
Pumps for Biogas Plants - energypedia.info
https://energypedia.info/wiki/Pumps_for_Biogas_Plants
8 Apr 2015 - Join our Wiki Training Webinars ... Pumps for Biogas Plants ... There are two predominant types of pump for fresh substrate: centrifugal pumps ...
?Types of Pumps · ?Rotary Pumps · ?Positive Displacement ... · ?Rotary Piston Pump
Biogas - Wikipedia
https://en.wikipedia.org/wiki/Biogas
Biogas typically refers to a mixture of different gases produced by the breakdown of organic ... Cogeneration · Efficient energy use · Green building · Heat pump · Low-carbon power · Microgeneration · Passive solar building design ... A biogas plant is the name often given to an anaerobic digester that treats farm wastes or ...
Chopper pumps - Wikipedia
https://en.wikipedia.org/wiki/Chopper_pumps
A chopper pump is a centrifugal pump which is equipped with a cutting system to facilitate ... Scum pumping at wastewater treatment plants; Sewage wet wells and lift stations; especially sewage containing wet wipes; Sludge pumping at biogas facilities; Pumping agricultural manure (dairy, hog and poultry); Septage ...
Gear pump - Wikipedia
https://en.wikipedia.org/wiki/Gear_pump
A gear pump uses the meshing of gears to pump fluid by displacement. They are one of the most common types of pumps for hydraulic fluid power applications.
Pumping station - Wikipedia
https://en.wikipedia.org/wiki/Pumping_station
Pumping stations are facilities including pumps and equipment for pumping fluids from one
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Slurry Pumps and Slaughterhouse Waste Pumping an Abattoir Pump Case Study

It is a common experience that although many would expect that centrifugal slurry pumps would be suitable for most and slaughterhouse waste pumping applications, they fall short when used in the biogas industry. For biogas processing it is necessary to pump the entire waste, including the bones because even the bones are a useful biogas source.

So, when the biogas industry process designer seeks to pump this material both into trucks for transport, and then subsequently from the truck at the biogas plant into the biogas digester, the pumps need to be extremely hard-wearing and blockage free.



In fact pumping slaughterhouse waste which includes all sorts of shapes, and sizes, of bones must be just about the most demanding requirement for any pump. Although, it may be similar to a some types of food waste the added presence of sharp and hard bones makes the difference.

To ask a food industry type progressive cavity pump to do this work, or even a heavy duty screw feeder, may at first appear viable.

But, operators seeking abattoir waste pumps should take care when buying, because wear rates due to the abrasiveness of bone can be a real concern and in the case study which follows it was not until a different pump entirely was specified and installed that a solution was found.



In this article we provide a case study of a particular abattoir where VERDER Pumps solved a vexing abattoir waste pump blockage and wear problem.

SOLUTION TO MAKING BIOGAS THROUGH PUMPING SLAUGHTERHOUSE WASTE

A Danish biogas plant had frequent problems pumping waste of this kind because the waste contained large-sized bones.
Sometimes the percentage of solid matter increased up to 10-13 %.
Until now the abattoir company used a heavy duty screw feeder, which blocked regularly because of the bones.
Because the feeder was submerged in a large container, downtime was extensive to release the screw feeder again. In a later stage a progressing cavity pump tried to manage pumping this difficult mixture, but the stator suffered extreme wear due to the sharp edged bones.
The required flow had a capacity of 360-540 m3/h. The differential head is approximately 10–15 m. The pump is feeding a large-sized bone crusher.
A VerderHUS screw channel pump was offered for a test period to pump the slaughter waste from the tank to the bone crusher. The pump was not executed with a normal electric motor but was coupled with a hydraulic drive, supplied by the client. The hydraulic drive offers very high torque required in the technical specification (360-540m3/h). The pump speed could be adjusted quickly when needed.
The slaughterhouse waste is now being pumped by the submerged HUS screw channel pump to the homogenizing tank smoothly.
The VerderHUS screw centrifugal pump was tested successfully and offered the perfect solution. Four years after installation the pump runs fully submerged and does not block. The pump is even operating as a bone breaker!
The only two pump parts that have been replaced were an impeller and a suction casing. The company is very satisfied and has installed an extra pump for greater capacity. 
via www.verderliquids.com

Verder can also supply your food waste pump, to their competitive food waste pumps price list. They have a well reviewed food waste pump for sale, and they also have food waste and slurry pumps for sale in Northern Ireland, Scotland and throughout the UK. Also stocking their own slurry pump parts Request their slurry and food waste pump prices and submersible slurry pumps.

Thursday, July 27, 2017

Advantages of Biogas Energy - Shout Louder for UK Anaerobic Digestion

Professionals Need to Shout Louder about their Vision of a Global Biogas Boom

The video and article are inspired by an editorial by Charlotte Morton, ADBA’s Chief Executive.

Advantages of Biogas - Published in the AD and Bioresources News.

Anaerobic Digestion Plants in the UK are already delivering exceptional value, but so far have delivered only a fraction of the potential of this technology.

With further investment the UK Biogas industry can not only keep growing, meeting the UK’s energy security, food security and greenhouse gas goals. But, the Advantages of Biogas can also help the world deliver sustainable development.

Global agreements like COP21 are only a start in terms of recognising the challenges we face.

Climate change is already hindering efforts to reduce poverty and hunger in the developing world. The Advantages of Biogas are badly needed.


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More Information about biogas plant:
Various Advantages and Disadvantages of Biogas - Conserve Energy ...
www.conserve-energy-future.com/advantages-and-disadvantages-of-biogas.php
Advantages and disadvantages of biogas: Biogas is majorly a mix of methane and carbon dioxide. It may also contain traces of siloxanes, hydrogen sulfide, and ...
Advantages and Disadvantages of Biogas | Govardhan Ecovillage
https://www.ecovillage.org.in/ecopedia/.../advantages-and-disadvantages-of-biogas
Provides a non-polluting and renewable source of energy and Efficient way of energy conversion (saves fuelwood).
Advantages of Biogas - SimGas
www.simgas.com/advantages-of-biogas/item5
With biogas, you can reduce your cooking fuel expenses by as much as 80%! A biogas system converts your organic household waste or manure into cooking ...
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