Date posted: 18 October 2018
Posted in:
Biogas Systems, Manufacturing
From the Yorkshire Water website, an article about one of our AJ Tensile Biogas Systems gasholders which was manufactured by sister company AJ Tensile Manufacturing Ltd. The photos were unfortunately taken before it was cleaned – the dirt accumulated because it had to be left uninflated for a short while exposed to typically British weather..!
https://www.yorkshirewater.com/about-us/newsroom-media/gas-bag-renewable-energy-knostrop-leeds-june-2018
Swinging into action – poo power helps Yorkshire Water drive green ambitions at Knostrop
Those who drive into Leeds on the M1 or A63 may have seen a rather large golf ball looking object appear on the Yorkshire Water Knostrop treatment plant near Leeds.
The firm is not trying to create a mini Epcot Centre in Leeds, but building a gas bag, with its construction meaning another landmark has been reached in the £72m project.
Methane produced from sludge treatment will be stored in the bag with up to 3,700 cubic metres of gas stored at any one time. All of this gas will then be turned into electricity to help power the plant.
The facility will begin processing in August and once fully operational later this year, will contribute significantly to the recycling of 94% of Leeds’ sewage sludge by 2020.
The facility will be capable of processing up to 131 tonnes of dry sludge a day and will generate enough renewable energy, using heat and power engines, to provide 55% of Knostrop’s energy needs – enough to power 8,000 homes.
Yorkshire Water Project Manager, Lee Laherty, said: “This is the single biggest investment the company is making between 2015 and 2020.
“The installation is a huge deal because we can start creating more electricity for ourselves and do more to reduce carbon emissions and help the environment.
“It also supports Leeds council’s ambition for the Lower Aire Valley to become a hub for green energy and industry.”
Date posted: 26 July 2018
Posted in:
Biogas Systems, Manufacturing
AJ Tensile Biogas Systems Ltd recently completed a 2,500 cubic metre Biosphere for export to Pontiac, Michigan in the USA. Constructed using our double-skin membrane design and with an operating pressure of 20 millibar, this tank-mounted gasholder will stand around 10.5m high when fully inflated and was fabricated in-house by our production division, AJ Tensile Manufacturing Ltd.
Date posted: 24 July 2018
Posted in:
Biogas Systems, Manufacturing
This slab-mounted 400 cubic metre BioSphere gasholder was designed and project managed by our Biogas company and fabricated by our Manufacturing division for a client in Jakarta, Indonesia. This is the first BioSphere that we have produced for the Indonesian market and it had to be manufactured to a very tight program so that five weeks of port-to-port sea delivery could be achieved. Installation will be performed by the client under the direct supervision of one of our senior installers.
Our Biogas and Manufacturing divisions collaborated recently to complete a 975 cubic metre Biosphere gasholder at Sandown on the Isle of Wight for Southern Water and Barhale Trant Utilities LLP. This was to replace an existing unit that had come to the end of its long and happy life, and our new design offered improvements by having no gap between the inner and outer membranes.
The installation went smoothly despite adverse weather conditions where the whole site was blanketed in thick snow, and our installation crew worked closely with the client to ensure that delays were kept to a minimum. The gasholder went into full operational service only a week after the installation was completed.
Date posted: 14 June 2018
Posted in:
Biogas Systems, Manufacturing
Our Biogas and Manufacturing divisions recently completed a joint Biogas project in the USA for WesTech Engineering. Located in Rahway, New Jersey, the tank-mounted BioSphere gasholder has a capacity of 1,350 cubic metres with a base diameter of over 23m and a height of over 6m. This project is the first of three phases for Rahway Valley Sewerage Authority, an autonomous agency that owns and operates a trunk sewer system and a wastewater treatment facility in Rahway, New Jersey. The RVSA currently serves more than 250,000 residents and 3,500 industrial and commercial customers in 14 communities in central New Jersey.
AJ Tensile Biogas Systems and AJ Tensile Manufacturing Ltd will also be manufacturing BioSphere gasholders for Tank No.2 and Tank No. 3.
Date posted: 30 May 2018
Posted in:
Biogas Systems, Manufacturing
This article by James Brockett originally appeared in the May 2018 Water & Wastewater Treatment newsletter, and is reproduced with permission.
A J Tensile Manufacturing Ltd fabricated the biogas domes at our manufacturing plant in Caldicot, South Wales.
http://wwtonline.co.uk/news/severn-trents-%C2%A360m-thermal-hydrolysis-plant-starts-operating/4211
The £60M scheme changes the way the company treats waste before generating green power and will make the process considerably more efficient, meaning the amount of clean energy generated will increase by almost a third. More than half of the plant is now up and running and it is expected to be fully operational by the end of the summer.
Severn Trent said the Minworth site already generates enough clean electricity to power the equivalent of 11,000 homes and enough gas to heat 4,800 homes every year, with this set to increase as the THP comes online.
David Nyul, who is leading the project for Severn Trent, said: “It’s really exciting to see this cutting edge technology starting to become operational.
“This has been a huge investment for us and this innovative tech means that we’ll be generating more green power than ever before at Minworth. We have significant expertise in anaerobic digestion and THP is the next step to make the process even more efficient in the future.”
The process works by heating sewage sludge to 170°C and then pressurising it. The thermal hydrolysis process has an additional benefit as the leftover solids can be classified as “enhanced” status fertiliser and could potentially be used in the production of crops for human consumption, Severn Trent said.
Nyul added: “Minworth is our biggest sewage works and treats waste water from more than 1.6 million homes and businesses across Birmingham and the Black Country. The technology we have already generates both power for use in the works and gas for injection into the national grid.
“The bio-gas we create through this process will both be used to generate electricity and to be treated at our gas to grid plant on site to make it suitable for domestic use before being injected into the grid where it will be used by local homes and businesses.
“The new THP will increase our generation which is good for Severn Trent, for our customers and for the environment.” Severn Trent aims to generate 50 per cent of the energy it uses by 2020.
The company announced plans to invest £100 million to “get ready for the future” as it posted its latest set of financial results on 23 May.
Author: James Brockett, Water & Wastewater Treatment newsletter
AJ Tensile is seeking practical self employed sub-contractors to assist us with the installation of various projects (predominantly biogas membranes) throughout the UK.
CSCS accreditation is a must, along with a hands-on and flexible approach.
Please email gary@ajtensile.co.uk expressing your interest.
Date posted: 19 April 2018
Posted in:
Biogas Systems, Manufacturing, Uncategorized
This 3890 cubic metre slab-mount BioSphere gasholder is getting final checks at our production facility before being packaged up ready for installation at Knostrop Sludge Treatment Facility in Leeds. Our team will be installing it over a period of two weeks for our client Black and Veatch.
Inflation test at our production facility of the inner liner for a 975 cubic metre gasholder at Sandown, Isle of Wight.
