Pumps & Valves

Retrofit of digester mixers helps Biosciences Institute boost gas yields by 15-25%

Northern Ireland’s Agri-Food and Biosciences Institute (AFBI) has made a significant breakthrough with its research into on-farm biogas production by introducing a new digester mixing system.

At Hillsborough, one of seven AFBI sites that provide scientific research and services to government, non-governmental and commercial organisations, the retrofit of the AD plant’s main digester has improved biogas yields by 15-25%.

At what was the first biogas plant of its type in Northern Ireland, the cow slurry from the site’s 300-strong dairy herd is co-digested with grass silage produced on the research farm, to produce biogas which is combusted in a CHP engine providing heat and electricity for the site.

The new mixing system ensured that fresh feedstock was being better mixed in the main digestion tank and was not discharged too early, as witnessed by higher discharge temperature than that observed from the old mixing system.

Dr Gary Lyons from the Agri-Environment Branch at AFBI, said: “The original mixing system, installed when the plant was built, worked well for a number of years, but eventually a build-up of sludge in the bottom of the primary and secondary digestion tanks meant that we were getting poor digestate mixing. This impacted biogas production and the level of methane in the biogas. We decided that we needed to shut the system down, clear the sludge from the tanks, and retrofit a new mixing system on to the main digestion tank, which would not give us issues with sludge build-up in the future.”

 

 

‘A robust mixing system is critical’

He added: “At AFBI, we understand that busy farmers have more than enough to do, without having to constantly repair and maintain their biogas plant, so we’ve been able to see first-hand that a robust mixing system is critical. One that doesn’t have any wear parts on the inside of the tank will prevent the big headache of downtime.”

The new mixing system in question is a simple, but highly effective one. Externally-mounted, a Chopper Pump (invented by Landia in 1950) with venturi nozzles. No working at height. No working in the gas zone. And no costly downtime for servicing.

“There’s more to it than that of course,” continued Gary. The Landia GasMix provides the dual benefit of both hydraulic and biogas mixing in one system, which was appealing to the AFBI team. We’re not a commercial plant, but our role is to explore all of the possible benefits for farmers. This means not only maximising the amount of clean energy that can be produced, but how to achieve that with the minimum amount of energy that goes in.

‘More gas and also better quality gas’

“When we were just using slurry as a feedstock, the Landia mixers increased our output from 300 cubic metres of biogas per day of dry solids to typically 360, and as high as 400. I’m a sceptic by nature, but the results were there right in front of us with our readings; more gas and also better quality gas, with the Landia GasMix system working away without any problems, continuously reducing the particle size of the feedstock.

“Over time, only two of the 18 lines on the old mixing system hadn’t blocked. We knew we had to look for a lower maintenance alternative.”

Gary and his team’s search saw them consult with the first biogas plant of its type in the Republic of Ireland, where in County Limerick, impressive performance numbers were being reported at the site owned and operated by Greengas.

I spoke with David McDonnell at Greengas,” said Gary. “He told me that his plant was benefiting from having Landia mixers. I also looked hard at the Danish Biogas Association’s advice on the use of venturi nozzles for digester mixing at AD plants. This led to us working with DPS (part of the EPS Group) of Bangor (who supply Landia equipment in Northern Ireland and the Republic of Ireland) to help with their knowledge and experience

“In this situation, throwing more power at the process isn’t the answer. We’ve also understood that dwell times are very important, which takes convincing for some, but through careful fine-tuning, we don’t have to run the Landia mixers flat out to optimise biogas yields; just in 10-minute cycles, so only 30 minutes each hour. We need to experiment more with dwell times to hit the sweet spot of minimal mixing for maximum plant performance.

“We have had no problems with digestate mixing whatsoever since installing the Landia digester mixing system. By increasing the surface area of the feed with truly comprehensive mixing of the tank, the bacteria get to work much quicker. I do like the fact that the system incorporates biogas recirculation, and we do not appear to have solids settlement issues.

“As a scientific research centre, we’ve experienced the good, the bad and the ugly of AD, which should help farmers avoid the downside of those mixing systems that can only be retrieved by having to laboriously drain down the tank and then have to start the whole process from scratch. We won’t be doing that again.

“Following the increase in biogas production and methane content that we saw with mono-digestion of slurry as the feedstock, it will be very interesting in time to collate the data from the co-digestion of slurry and grass silage.”

www.landiaworld.com

Landia Biogas Digester Systems set for Indonesia

For pre-treatment tanks at a wastewater facility in Indonesia, Landia is supplying 12 of its digester mixing systems.

Part of a major Bio Production Plant in Java, the facility converts grass materials into biodegradable bags, with the excess matter utilised to produce biogas in six 4,000m3 rectangular concrete tanks.

To accelerate the installation, Landia is sending the pipework of its externally-mounted systems in self-assembly sets, with an appointed engineer to supervise the set-up. At the heart of the system is the Chopper Pump (invented by Landia in 1950), plus venturi nozzles, which will provide comprehensive mixing of the tanks, so that no crust forms on the surface of the liquid.

Fergus Clark, who heads up the Asia-Pacific region for Landia, said:

"This is a very important new order, which underlines the effectiveness of our digester mixing system and the unrivalled reputation it has for maximising biogas yields.  Operators also like the fact that it is so reliable, and that everything is easily accessible on the outside of the tank - with no working at height. Unlike some systems, there is no downtime or very costly emptying of the tank for servicing or repair."

www.landia.com

 

Chamber success as Borger’s pumps take screws out and send energy costs down

Boerger.jpeg

Burdened with cumbersome maintenance, expensive spare parts and very high energy costs, a wastewater treatment plant has replaced its multi-phase eccentric screw pumps with new Rotary Lobe pumps, made by Börger.

Installed for a chamber filter press, the space-saving Börger pumps have been supplied as a twin-pack unit; two identical Rotary Lobe Pumps, which are operated in series. Each Börger rotary lobe pump has its own frequency converter that allows speeds to be individually regulated.

When feeding the chamber filter press, operators at the wastewater treatment plant now have a choice between two phases - the pre-fill phase and the pressurized phase. During the pre-fill phase, large quantities of sludge are pumped at high speed into the chamber filter press to fill up its chamber.

As the solids in the sludge gather in front of the filter screens, the increasing filling level of the chamber increases the counter pressure in the chamber filter press. Using the frequency converter, the speed of the Börger pumps is then reduced accordingly.

In addition to improving the output and efficiency of the application, the new Rotary Lobe pumps have drastically reduced energy costs, and are also far easier to service with their easy access, Maintenance-In-Place design.

Borger UK

01902 798 977

www.boerger.com

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High fibre in wastewater handled by robust Börger pump

Boreger.jpeg

A rotary lobe pump made by Börger has helped solve a wastewater processing problem at a textile manufacturer.

Taking effluent from the bleaching process into a storage tank, the Börger pump has to contend with significant fibrous material that also contains elements of hydrogen peroxide and caustic soda.

When the defined fill level of the wastewater has been reached in the collection tank, the Börger rotary lobe pump automatically conveys the liquid in measured amounts from the collecting tank into the sewage system.

Made of Duplex stainless steel and equipped with a maintenance-free mechanical seal, the compact Börger rotary lobe pump is very easy to service, requiring only basic tools.

Borger UK

01902 798 977

www.boerger.com

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Riventa make headway in Brazil with superior SAS pump monitoring

Water companies in Brazil are now benefitting from Riventas SAS Software as a Service model 002

 

 

 

 

 

 

 

 

 

 

 

 

Riventa’s expertise in optimising the performance of pumps and blowers has seen it win important new contracts in Brazil through its partner in São Paulo, Toraqua Technologies.

A total so far of five public and private water companies are now benefitting from Riventa’s SAS (Software as a Service) model, where the customer no longer has to concern itself with the maintenance of hardware.

André Vizioli Gomes, General Manager of Toraqua Technologies, commented: “The market here is pleasantly surprised and excited about just how quickly they get instant information about how their pumps and blowers are performing. In addition to the real-time data, management reports showing, for example, where to make energy savings, can be produced. The sensors provided by Riventa are also far more accurate than what has been in use previously.”

Testing and monitoring as a service has been key to Riventa’s worldwide growth, but with Software as a Service (SAS) also now available, water companies in Brazil can identify savings quicker and plan maintenance significantly better from the data that is gathered on measured flow, efficiency, head and power.  

“Everything is faster, yet much simpler for our customers,” added André Vizioli Gomes. “SAS is the way forward for us. It provides an excellent insight that enables the water companies to make quicker yet better decisions – with advice and recommendations on hand as we and Riventa also view the readings from the software to analyse the data as it happens.”

www.riventa.com

Trane Heat Pump Solutions Help Decarbonise Schools in the Fiumicino District in Italy

 

trane_1.jpeg

Trane heat pumps replaced gas-boilers to deliver clean, renewable heat as part of the municipality’s overall project to eliminate the schools’ CO2 emissions.

 

The project has made 31 nurseries, kindergartens, elementary schools, and middle schools buildings in Fiumicino carbon-neutral, sustainable and energy-autonomous.

 

 Trane®, a leading global provider of indoor comfort solutions and services and a brand of Trane Technologies, announced today its heat pump solutions have been instrumental in decarbonising the heating systems of 31 schools in the Italian district of Fiumicino. Replacing gas boilers and electrifying the schools’ heating systems is part of the municipality’s project to convert all schools in Fiumicino into carbon neutral, energetically sustainable and autonomous buildings.

The overall project including the electrification of heating systems, installation of photovoltaic systems, replacement of lamps with new LED lights and creating of a fully automated management system will generate energy savings equivalent of around 650 TOE (Tonnes of Oil Equivalent) of heat and electricity, correspondent to the reduction of atmospheric emissions of almost 1,400 tonnes of CO2 per year.

The new, sustainable heating systems in Fiumicino’s schools are based on a total of 40 Trane Sintesis Advantage CXAF, Conquest CXAX and Cube CXB air-to-water heat pumps, which contribute to the overall emission reduction with an estimated average of up to 390 tonnes of CO2 per year.

“By rethinking how we manage our heating and cooling systems, and moving away from the historic, fossil fuel-driven approach, we can reset our course and radically reduce the emissions of our buildings,” said Louis Rompre, portfolio manager at Trane in Europe, Middle East and Africa. “With gains in the decarbonisation of the electricity grid, the future of how we heat our buildings must surely be electric, contributing to safer buildings and improving the air quality of our cities. Replacing gas boilers that contribute significantly to NOx and CO2 emissions worsening the air quality around schools is particularly important for the wellbeing of children and neighbours. The decarbonisation project in Fiumicino that Trane is proud to be part of, is a great example of how a Municipality can put existing technology to work to become one of the greenest districts in Italy.”

The decarbonisation of the nurseries, kindergartens, elementary and middle schools’ heating systems involved the redevelopment of 31 thermal power plants, removal of old gas boilers and installation of highly efficient Trane heat pumps. Sourcing energy from the ambient air, with zero direct greenhouse gas (GHG) emissions, these air-to-water heat pumps offer a renewable energy solution to traditionally carbon-intensive space heating demands:
 

  • Trane Sintesis™ Advantage CXAF provides best-in-class efficiency levels at Eurovent Class A full load performance. The Sintesis™ Advantage CXAF heat pumps offer market leading operating maps and can deliver 40°C hot water even at -15°C ambient air temperature, enough for conventional low-temperature space comfort heating. For boiler installations coupled with medium temperature radiators in average requiring hot water of 45°C - the Sintesis™ Advantage CXAF can efficiently meet that requirement at -10°C ambient air temperature.
  • Trane Conquest CXAX air-to-water scroll heat pump delivers reversible cooling and heating at wide operating maps reaching down to -15°C ambient air and offers up to 60°C leaving hot water temperature. Trane Conquest CXAX heat pumps combine high performance and reliability in a compact design ensuring lower noise, without reducing efficiency or affecting the footprint.
  • Trane Cube CXB air-to-water heat pumps produce leaving hot water up to 65°C and down to
    -10°C outdoor air temperature. With low ambient air kit, the unit can provide up to 55°C down to -20°C outdoor air temperature.

The electrification of school heating project in Fiumicino initiated in 2021 is now completed with the Trane system fully operational.

Trane’s extensive network organization includes teams of highly trained professionals available 24/7 to provide technical assistance, advice, and support. Trane customers receive prompt and effective assistance whenever they need it and can benefit from the company’s commitment to delivering energy-efficient and sustainable solutions that help reduce carbon footprint and achieve sustainability goals.

Providing sustainable cooling and heating solutions is part of Trane’s and Trane Technologies’ overall approach to reducing carbon emissions in the industries and markets they serve. It helps advance the 2030 Sustainability Commitments, including the Gigaton Challenge to reduce customer greenhouse gas emissions by 1 billion metric tons.

For more details of on the complete Trane portfolio of solutions, please visit www.Trane.eu

Trane heat pumps replaced gas-boilers to deliver clean, renewable heat as part of the municipality’s overall project to eliminate the schools’ CO2 emissions.

 

The project has made 31 nurseries, kindergartens, elementary schools, and middle schools buildings in Fiumicino carbon-neutral, sustainable and energy-autonomous.

 

Brussels, Belgium, July 6, 2023 - Trane®, a leading global provider of indoor comfort solutions and services and a brand of Trane Technologies, announced today its heat pump solutions have been instrumental in decarbonising the heating systems of 31 schools in the Italian district of Fiumicino. Replacing gas boilers and electrifying the schools’ heating systems is part of the municipality’s project to convert all schools in Fiumicino into carbon neutral, energetically sustainable and autonomous buildings.

The overall project including the electrification of heating systems, installation of photovoltaic systems, replacement of lamps with new LED lights and creating of a fully automated management system will generate energy savings equivalent of around 650 TOE (Tonnes of Oil Equivalent) of heat and electricity, correspondent to the reduction of atmospheric emissions of almost 1,400 tonnes of CO2 per year.

The new, sustainable heating systems in Fiumicino’s schools are based on a total of 40 Trane Sintesis Advantage CXAF, Conquest CXAX and Cube CXB air-to-water heat pumps, which contribute to the overall emission reduction with an estimated average of up to 390 tonnes of CO2 per year.

“By rethinking how we manage our heating and cooling systems, and moving away from the historic, fossil fuel-driven approach, we can reset our course and radically reduce the emissions of our buildings,” said Louis Rompre, portfolio manager at Trane in Europe, Middle East and Africa. “With gains in the decarbonisation of the electricity grid, the future of how we heat our buildings must surely be electric, contributing to safer buildings and improving the air quality of our cities. Replacing gas boilers that contribute significantly to NOx and CO2 emissions worsening the air quality around schools is particularly important for the wellbeing of children and neighbours. The decarbonisation project in Fiumicino that Trane is proud to be part of, is a great example of how a Municipality can put existing technology to work to become one of the greenest districts in Italy.”

The decarbonisation of the nurseries, kindergartens, elementary and middle schools’ heating systems involved the redevelopment of 31 thermal power plants, removal of old gas boilers and installation of highly efficient Trane heat pumps. Sourcing energy from the ambient air, with zero direct greenhouse gas (GHG) emissions, these air-to-water heat pumps offer a renewable energy solution to traditionally carbon-intensive space heating demands:
 

  • Trane Sintesis™ Advantage CXAF provides best-in-class efficiency levels at Eurovent Class A full load performance. The Sintesis™ Advantage CXAF heat pumps offer market leading operating maps and can deliver 40°C hot water even at -15°C ambient air temperature, enough for conventional low-temperature space comfort heating. For boiler installations coupled with medium temperature radiators in average requiring hot water of 45°C - the Sintesis™ Advantage CXAF can efficiently meet that requirement at -10°C ambient air temperature.
  • Trane Conquest CXAX air-to-water scroll heat pump delivers reversible cooling and heating at wide operating maps reaching down to -15°C ambient air and offers up to 60°C leaving hot water temperature. Trane Conquest CXAX heat pumps combine high performance and reliability in a compact design ensuring lower noise, without reducing efficiency or affecting the footprint.
  • Trane Cube CXB air-to-water heat pumps produce leaving hot water up to 65°C and down to
    -10°C outdoor air temperature. With low ambient air kit, the unit can provide up to 55°C down to -20°C outdoor air temperature.

The electrification of school heating project in Fiumicino initiated in 2021 is now completed with the Trane system fully operational.

Trane’s extensive network organization includes teams of highly trained professionals available 24/7 to provide technical assistance, advice, and support. Trane customers receive prompt and effective assistance whenever they need it and can benefit from the company’s commitment to delivering energy-efficient and sustainable solutions that help reduce carbon footprint and achieve sustainability goals.

Providing sustainable cooling and heating solutions is part of Trane’s and Trane Technologies’ overall approach to reducing carbon emissions in the industries and markets they serve. It helps advance the 2030 Sustainability Commitments, including the Gigaton Challenge to reduce customer greenhouse gas emissions by 1 billion metric tons.

For more details of on the complete Trane portfolio of solutions, please visit www.Trane.eu

Water Treatment Plant installs new Borger pumps for Membrane Filtration

Fourteen Rotary Lobe Pumps made by Borger have been installed for a membrane filtration application at a water treatment plant.

Achieving a total output of up to 10,000 m³/h, the Borger pumps extract water so that it can be purified through the membranes.

In addition to being extremely stable and practically wear-resistant, the pumps were chosen to suit the cleaning of the membranes by back-flushing with filtered water. This made it essential for the operator of the plant to have pumps that could be operated in reverse. The rotary lobe pumps from Borger also have a high suction capacity that allows the treatment plant to vary the quantity of water during the back-flushing phase.

Regulated by a frequency converter, the Borger Rotary Lobe Pumps (which have a rated capacity of 450 - 720 m³/h),

are designed with maintenance-in-place for easy servicing, requiring only basic tools to keep downtime and costs to a minimum.

 

Borger UK

01902 798 977

www.boerger.com

This email address is being protected from spambots. You need JavaScript enabled to view it.

Powerline help further prolong lifetime of proven Landia pumps

Banbury-based Powerline Electric Motors has completed the refurbishment of its latest batch of Landia slurry pumps, including one unit that has been in operation for almost 25 years.

With its ongoing investment in new equipment and growing number of apprentices, Powerline has seen a significant increase in demand for its repair services, which not only help prolong the lifetime of pumps, but also improve efficiencies.

Landia’s Paul Davies, commented:” Although we have our own nationwide service team, Powerline’s skill in overhauling pumps is first-class. We are pleased to see our equipment continue to provide excellent, long-term service.”

Richard Thompson of Powerline added: “We’re not in the habit of disappointing our customers. Landia make very robust pumps and they always have a good stock of spares on hand for us, so that we can offer the best possible turnaround.”

Landia and Powerline also both work closely with Shipston-on-Stour-based Midland Slurry Systems, who specialise in the supply and maintenance of industrial and agricultural wastewater treatment installations and animal slurry management.

Giles Russell for Midland Slurry Systems, said: “We have total confidence in the Landia pumps and mixers that we’ve used for many years. In slurry pits, equipment has to be tough, but it must be maintained properly too. After our pumps have been in for service with Powerline, they’re like new!”

In addition to the farming sector, Powerline also provides high-quality repairs, rewinding and refurbishment of electric motors, pumps, fans, and gearboxes to a wide variety of industries, such as manufacturers of foods, plastics, and automotive, as well as servicing customers working in chemicals, utilities, healthcare, construction, and Oxfordshire-based F1.

www.landiaworld.com

www.PowerlineElectricMotors.co.uk

www.midlandslurrysystems.co.uk

this article can also be found in the latest issue of  EMS

 

Identifying poor assets and inefficient pumps.

Despite the soaring prices brought on by an energy crisis that shows no signs of diminishing, ask pump and blower operators about the efficiency of their equipment, and the truth is that most don’t know – according to a leading monitoring technology provider.

The pumps, for example, might often be described as ‘working fine’ and ‘doing their job’, but is that, now more than ever, a strategy? How about saving money now, and in the future?

“The opportunity to truly maintain, protect and optimise assets is here and now, with a Return on Investment (ROI) that is shorter than ever”, says Julian Lowe from Riventa. “The cost of solving asset management challenges is on a much smaller scale than most companies imagine”.

So, just how can you make hidden costs more visible?

At minimum, put some testing in place. By obtaining accurate, quality data, this first proactive step will give you a snapshot of performance, as well as health and efficiency. Even this entry-level testing will help identify poor assets and inefficient pumps.

Riventa’s Julian Lowe added: “All we hear about at the moment, understandably, is the giant hike in energy prices, so best test your pumps (and/or blowers and turbines) to reduce energy consumption and maximise savings. This will almost immediately help identify actions to improve performance. In addition to pump efficiency, measuring key parameters such as flow rate, head and electrical power - current pump performance characteristics can be compared to ‘as new’ and ‘post-refurbishment’ conditions. This provides the same accuracy as a pump manufacturer’s test facility – but with the distinct advantage of real operating conditions”.

Across numerous industries, where for some, running pumps ‘til destruction is the modus operandi, Lowe has a point. He claims that for larger pumps, blowers and turbines, the ROI can be as little as 18 months.

A level up from pump testing is to look at an Optimisation Service, utilising secure on-site pump monitoring equipment to provide real-time data. This enables you to start seeing what’s happening across your system by capturing data over 14-days or longer. This doesn’t have to involve tons of ‘spaghetti’. Systems can now be cable-free; up and running in around 1 hour per pump, at low risk and with minimal disruption to existing operations.

‘Realistic payback calculations’

Dr Tom Clifford from Riventa, continued: “Once in place, real-time data for each asset can be evaluated, with information-driven insights highlighting performance issues and supporting decisions. This can establish best practice recommendations, realistic payback calculations and a business case for moving forward – all backed by precision measurement and innovative analytics”.

Clifford explained how Riventa had recently worked with a food manufacturer; testing the company’s cooling system, which is split into two pumping sub-systems: factory pumps 1-5 for sending chilled water from heat-exchangers to the factory; and evaporator pumps that send chilled water from the factory to refrigeration heat exchangers.

“To test the pumps, we used the thermodynamic measurement technique (with our specialist software) to measure suction and discharge pressures either side of the pump, differential temperature, and motor input power. These measurements enabled us to calculate differential head across the pump, hydraulic efficiency and volumetric flow. Pumps were altered gradually. After each change, a test point was taken, while allowing enough time to obtain the best statistical average. Tests also involved a routine of testing performance at an incumbent set point, followed by throttling the pump to reduce its flow rate. The latter action allowed other pumps running in parallel to increase in speed to compensate, with a final test point taken at this moment”.

He continued: “Throttling meant we could observe the maximum possible flow through each pump under test, without altering the overall flow to the plant. At times this was challenging, because conditions downstream in production would change, altering the cooling load and in-turn the flow set point. Nevertheless, good quality performance information was obtained.

‘Strong case for robust savings’

“We found that all pumps were showing signs of wear. Moreover, manufacturer performance levels were not being achieved. None of the pumps we tested reached the manufacturer’s BEP (81%). In fact, the maximum pump efficiency possible was found to be 75% (achieved by pumps 1 & 2 only). Our findings enabled us to put pumps into a descending order of repair: 1, 2, 3, 4 & 5. While pumps 1-3 achieved a good relationship between power and flow, pumps 4 & 5 were not performing when at lower flows. This indicated a high likelihood of internal recirculation – from high to low pressure parts of the impeller – being caused by high wear. We were able build a strong case for robust savings through the pump refurbishment. Broadly, two options were made available:

  • Basic Refurbishment: Internal coating plus replacement of wear-rings, bearings and seals.
  • Comprehensive Refurbishment: As per the Basic Refurbishment, plus a new tailored impeller.

“We calculated that pump refurbishment would bring potential

savings of £19,200 per year, with possibilities to refurbish 2, 3

or 5 pumps”.

This is just one example of what Riventa say they are helping companies achieve across industries that also include water, power, mining, petrochemical, to name but a few.

Advanced pump monitoring and optimisation are available too, continuously focusing efforts by evaluating and understanding performance gains across priority pumps and sites. And for some organisations, full optimisation of networks is available.

‘Change in Mindset’

“Nobody wanted an energy crisis”, concluded Clifford, “but as prices soar, we are beginning to see a change in mindset about just how important it is to know how your assets such as pumps, blowers and turbines are really performing.  Initially, some basic testing might reveal some not altogether pleasing facts (!), but you can soon put yourself on a very positive course to make some seriously good, ongoing savings”.

www.riventa.com

Grease sludge can’t halt powerful Borger pump

A submerged Börger rotary lobe pump has put a Midlands wastewater treatment plant back on course with what was a troublesome grease-sludge-basin application.

Previously, the WWTP was incurring unsatisfactory amounts of additional, complex maintenance and downtime, because its centrifugal pump couldn’t cope with the total solids content.  When attempting to pump sludge from a grease-sludge-basin into a storage shaft (from which a second pump fed a digestion tower), the centrifugal pump was all too regularly becoming blocked.

In addition to making significant savings on maintenance, the WWTP also no longer requires a storage shaft and a second pump. The Börger rotary lobe pump has more than sufficient power and stability to consistently convey the viscous grease sludge from the grease-sludge-basin, directly into the digestion tower.

Since its installation, the Börger rotary lobe pump has not suffered any blockages or failures, despite the challenging high total solids contents of the pumped medium.

 

Borger UK

01902 798 977

www.boerger.com

This email address is being protected from spambots. You need JavaScript enabled to view it.

New pump brings classic aeration solution to Timothy Taylor’s

Following an intensive 5-day survey of its wastewater treatment process, the highly renowned brewery, *Timothy Taylor’s (family-owned since its founding in 1858) has upgraded its aeration process by introducing the AirJet system from Landia.

The survey, which was conducted by leading wastewater treatment provider, Ogden Water, found that the pumps used for the brewery’s 45m3 balance tank were not providing enough agitation to adequately keep solids in suspension.

“Solids had begun to accumulate,” said Dr David Shepherd, Managing Director of Ogden Water. “The existing pumps were insufficient to fully mix and aerate the balance tank, so we set about finding Timothy Taylor’s with a much better, long-lasting solution.”

Nick Berkovits, Second Brewer at Timothy Taylor’s added: “Ogden Water’s rigorous survey showed that an upgrade to superior aeration equipment would eliminate odours caused by solids not being sufficiently suspended, and also provide a much more consistent homogenous feed to our DAF (Dissolved Air Flotation) unit”.

Designed with a venturi nozzle from the Chopper Pump that Landia invented in 1950, the AirJet aeration system was recommended by Ogden Water as the best and long-lasting solution.

“We’d previously used Landia’s pumps and mixers,” continued Ogden Water’s David Shepherd. “They are extremely effective, as well as being easy to maintain – and with a typical lifetime of at least 15-20 years, are a very sound, peace of mind investment for our customers”.

Simultaneously mixing and aerating, the Landia AirJet is an uncomplicated system that introduces air automatically to keep wastewater fresh; economically delivering dissolved oxygen at depths of up to 7.5m, to provide complete aeration

Nick Berkovits from Timothy Taylor’s, commented: “It’s fair to say that before the installation of the Landia AirJet, the performance of our DAF was being compromised. We also had the time and cost of having to use chemicals to address odours. But now, through the expert advice we’ve received from Ogden Water, and the success of what is a first-class aeration system from Landia, our wastewater treatment system is operating very well indeed”.

*In 1858, Timothy Taylor opened his brewery in Cook Lane, Keighley, Yorkshire, England.  A year later, he bought his first pub, The Volunteers Arms.

Today, Timothy Taylor’s brewery sits upon a particularly pure and consistent source of water (the Knowle Spring), that is the unique source for its beers – and key, for example as to why its much-loved ‘Boltmaker’ has been crowned Supreme Champion Beer of Great Britain at the CAMRA (Campaign for Real Ale) Great British Beer Festival.

Water from the Knowle Spring has filtered over time through layers of sandstone and black rock, to create the special mineral qualities that marry perfectly with Timothy Taylor’s Golden Promise barley malt. This unique combination is the foundation of the complex flavour and subtlety of the brewery’s most popular beer, Landlord.

www.landiaworld.com

www.ogdenwater.co.uk

This article can also be found in the issue below.

 

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