The unfair benefits of Water Discounting
Does the wastewater and sewage industry need to be subsidised by the public purse to continue landfilling sewage waste? Hot Rot Organic Solutions managing director James Lloyd, argues that parts of the Landfill Directive are out of date and operators in the wastewater and sewage treatment industries are continuing to landfill waste, instead of investing in proven recycling technologies which can treat this valuable resource.
Rotamix brings benefits to anaerobic digestion process
When Rotamix tank mixing systems were retrofitted on two digesters at a waste to energy plant gas production rocketed.
Organic waste study wins Ofwat support
Industry regulator Ofwat is supporting a study by the Office of Fair Trading (OFT) into the market for treating organic waste, including anaerobic digestion.
The advantages do AD up
More and more water companies are turning to anaerobic digestion systems. System Mix recently designed four mixers for Dwr Cymru - just one of several projects that have established the company as key player in the industry.
Anaerobic digestion is nothing new. But the time has come for a re-evaluation of its application to industrial waste streams
Aqua Enviro Technology Transfer has recently held a conference on anaerobic digestion. Here we describe some of the topics up for discussion
Some like it hot
Adapting temperature-phased anaerobic digestion is being seen as a way to upgrade plant to achieve a Class A sludge product. Frank Rogalla reports
Black and Veatch's Frank Rogalla compares anaerobic pre-treatment with solids digestion
Anaerobic reactors have come a long way since the big, custom-built plants of the 1980s. Melanie Brown reports on a demonstrator project, showcasing the latest anaerobic treatment technology
Egg-shaped for anaerobic digestion
In south-east Asia a design dating from the 1950s has been found to be an effective and economic solution for anaerobic sludge digestion, as Gerhard Sutter of round formwork specialists, RSB Schalungstechnik GmbH explains.
Magnesium hydroxide used to aid digestion
Rapid stabilisation of acidic waste sludges can be achieved using caustic soda or lime. But magnesium hydroxide is safer to handle and is much less likely to kill the bacteria needed for anaerobic sludge digestion.
DECC launches consultation proposals to slash biogas subsidies
The Department for Energy and Climate Change (DECC) has delivered another blow to the UK's clean energy industry, after proposing to completely cut Feed-in Tariff (FiT) schemes for large anaerobic digestion (AD) site and "severely" reduce subsidies for small and medium scale plants.
Sainsbury's set to expand AD scheme to power more stores from food waste
A scheme which sees a number of Sainsbury's supermarkets powered by renewable energy generated from food waste is to be rolled out to a further six stores, after a successful first year saw green gas produce 10% of the retailer's entire national energy consumption.
UK's largest on-site dairy AD plant to generate green energy from Cumbrian cheese
One of the UK's largest cheese creameries, First Milk, has announced the completion of a giant on-site anaerobic digestion (AD) plant which is feeding bio-methane to the national gas grid.
How Nando's is spicing up its on-site energy management
EXCLUSIVE: International restaurant chain Nando's is rolling out a number of on-site technology upgrades and innovative behaviour change methods, while exploring the possibility of food waste-powered restaurants, in a bid to take energy management in its UK sites "to the next level".
Food waste: Focus must shift from supermarkets to supply chains
EXCLUSIVE: Food waste campaigners should stop 'beating up the supermarkets' and instead look further up the supply chain at the untapped redistribution potential of thousands of processors and manufacturers, Britain's largest food redistribution charity has said.
Biffa ramps up UK food waste infrastructure
Waste services provider Biffa has announced a £1.5m investment to expand its food waste processing capacity across the UK.
Sainsbury's and Wyke Farms form green gas partnership
Two sustainable behemoths have formed a partnership which will see renowned cheese producers Wyke Farms generate green biogas to be used by Sainsbury's stores.
15,000 tonnes of Christmas leftovers converted into green energy
More than 15,000 tonnes of unused Christmas food - weighing the equivalent of 45 Boeing 747's - was diverted from landfill and transformed into festive renewable energy by one food waste recycler over the festive period.
AD industry urges politicians to emulate Parliament's food waste action
The anaerobic digestion (AD) industry has called for a nationwide food waste segregation plan after a House of Commons representative revealed that the Parliament estate sends the majority of its food waste to anaerobic digestion.
French power station generates electricity for 1,500 homes from cheese
A power plant in the French Alps is using leftover waste from nearby cheese production facilities to generate enough electricity to power 1,500 households in the surrounding area.
GIB makes third investment in Northern Ireland's AD industry
The UK Green Investment Bank (GIB) and private equity group Foresight have committed to invest £1.7m in the construction of an anaerobic digestion (AD) plant in Northern Ireland.
Autumn Statement and Spending Review: The green business wish list
Chancellor George Osborne will deliver his update on the Government's plans for the economy, known as the Autumn Statement, in Parliament today. The hopes are high, but expectations are seemingly low among green groups and industry.
Poo power: Human waste could heat 138 million households
Safely obtained biogas from human waste could generate electricity to power all of the households in in Indonesia, Brazil, and Ethiopia combined, if researchers can harness the correct innovative technologies.
Green investment for Northern Ireland's largest EfW plant
A proposed Energy from Waste (EfW) plant in Belfast has received almost half of its funding from the UK Green Investment Bank (GIB) after it committed £47m of equity to the 15MW project.
Scotland set for AD boom
Scotland's anaerobic digestion (AD) industry could double in size within the next two years after new figures revealed that farming biogas in the country grew by more than two thirds last year.
Food waste: Opportunity knocks for hospitality businesses
With sustainability becoming an increasingly important factor in dining decisions, ReFood's commercial director Philip Simpson explores how increasing food waste recycling in bars, restaurants and hotels could boost customer footfall, as well as reducing waste management costs.
Sustainability stats: This week in numbers
This week in sustainability has seen some major political announcements across the globe, big news involving the Amazon rainforest and recycling initiatives taking centre stage.
UK's AD capacity now greater than a nuclear power station
The UK's anaerobic digestion (AD) industry has surpassed the 500MW capacity milestone, with 411 plants across the farming, waste and water sectors.
'Grass to gas' AD plant planned for Hampshire college
Sparsholt College has teamed up with energy supplier Ecotricity to build a Green Gas Mill which will convert locally-harvested grass into carbon-neutral biomethane.
Diageo whiskey factory turns waste into renewable heat
Global drinks firm Diageo will generate 2 million cubic metres of biogas a year from its whiskey factory in Scotland thanks to a new anaerobic digestion plant.
Molson Coors saves 500 million litres in water reduction drive
Global beer producer Molson Coors is on track towards its 2020 energy targets with reductions in carbon emissions, water use and waste-to-landfill, according to its latest sustainability report released today (17 August).
Farming biogas leads 40% increase in sector electricity generation
Growth in the UK anaerobic digestion (AD) sector has seen electricity generation from bioenergy surge by 40% from 2013-14, according to figures from the Anaerobic Digestion and Bioresources Association (ADBA).
Runaway maize? AD sector fends off criticism over damage to land
The anaerobic digestion (AD) industry has hit back at criticism from the Soil Association which claims that soil destruction caused by biofuel production is threatening the UK's food security.
Supermarkets take shared responsibility for food waste crackdown
The UK's three largest supermarket chains and the trade body which represents them have unanimously agreed that more collaboration is needed to redistribute more surplus food to charities.
Ban food waste to landfill, urges major recycling group
England should follow the rest of the UK's lead by introducing a food waste to landfill ban to help feed more anaerobic digestion plants, an industry expert has asserted.
New trade body launched to support UK bioeconomy
The development of the bioeconomy in the UK is to be bolstered by the creation of a new trade body and the formation of a partnership with a renewable resource agency in Germany.
Food waste shortages already impacting AD industry, says NNFCC
EXCLUSIVE: Rapid expansion in the anaerobic digestion (AD) industry over the past year has taken it from an 'emerging, niche waste treatment industry' to one providing a significant contribution to the UK's electricity production.
Queen Elizabeth awards sustainable business achievement
Automotive giant Jaguar Land Rover and surplus food re-distributor Company Shop have been recognised as sustainability leaders by receiving a Queens Award for Enterprise in Sustainable Development today.
Could anaerobic digestion power phones of the future?
Smartphones could soon be powered by the product of anaerobic digestion (AD) of food waste, thanks to a new European research and development project.
New GIB fund unveils first investment in AD
Green Investment Bank fund manager Foresight has announced a £4m investment in a farm-based anaerobic digestion (AD) plant at Old Quarrington, Durham.
Severn Trent pumps £190m into renewable energy future
Severn Trent has announced it will be boosting its renewable energy self-generation with a £190m investment over the next five years.
Bioeconomy ready to boom, says Government report
The UK bioeconomy could be worth £100bn a year with Government support, claimed a new report from the Department of Business, Innovation and Skills (BIS).
NEC to send 120 tonnes of food waste to new Birmingham AD plant
Birmingham's National Exhibition Centre (NEC) has become one of the first local businesses to send its food waste to Severn Trent Green Power's £13 million anaerobic digestion (AD) plant.
Tamar Energy secures industry-first loan to support 'next wave' of AD plants
Confidence in the anaerobic digestion (AD) market has been reaffirmed with a 'first-of-its-kind' £32m investment from RBS to support the UK's leading AD plant operator.
The next five years: AD and food waste policy
Food waste policy will shape the future of the anaerobic digestion (AD) industry because 60% of the industry's potential comes from food waste, argues ADBA chief executive Charlotte Morton. Here, she unpicks this issue.
UK AD capacity grows 55% in 2013
Anaerobic digestion (AD) enjoyed a bumper year in the UK according to the latest sector survey published today (11 November) by WRAP, but Scotland did not contribute to the growth.
AD will help keep the UK's lights on, says Huhne
Anaerobic digestion (AD) will help the UK to keep its lights on and provide energy security because it has the ability to supply power that can be easily switched on and off, according to former energy secretary Chris Huhne.
UK biomethane gets subsidy certainty
A government proposal to introduce subsidy tiers for biomethane plants has been welcomed by the renewables industry.
Waste and resource management sector outlines key priorities for next Government
The major trade bodies representing the UK's waste management and recycling sector have written to the main political parties in England summarising the key policy proposals that they would like to see implemented after the May 2015 General Election.
Biomethane capacity quadruples in 2014
The amount of biomethane injected to the UK grid has doubled every year since 2011 and is set to more-than quadruple in 2014.
ReFood unveils industry-first food waste scholarship
Food waste recycling specialist ReFood has unveiled the industry's first dedicated scholarship programme to inspire the next generation of sustainable students.
London will see opening of second commercial-scale AD plant in 2015
Construction has begun on London's second commercial-scale anaerobic digestion (AD) facility at Cattlegate Farm in Potters Bar.
AD digestate 'safe' for farmers crops in Scotland
Quality Meat Scotland has declared that the waste products from anaerobic digestion (AD) - known as digestate or biofertiliser - is safe for livestock farmers to use on their crops.
Harnessing energy from human waste 'shouldn't be poo-pooed'
Power from human waste is 'the ultimate in green energy' that would cut the UK's dependence on fossil fuels and dramatically reduce CO2 emissions.
Biomethane industry must show '60% greenhouse gas savings', says Government
The Department of Energy and Climate Change (DECC) has published further details on the Renewable Heat Incentive (RHI), detailing how biomethane plants claiming support under the scheme must demonstrate a minimum 60% saving in greenhouse gas emissions.
Green Investment Bank supports waste innovation with £33m investment
The UK Green Investment Bank (GIB) has given its financial backing to a new waste treatment facility and anaerobic digestion (AD) plant North Yorkshire, which will process up to 320,000 tonnes of waste per year.
Sainsbury's tackles ghoulish garden garbage with pumpkin recycling scheme
In the run-up to Halloween, Sainsbury's has launched a scheme to encourage customers to recycle their unwanted pumpkins locally through WRAP's Recycle Now campaign.
WRAP chief praises Wales' green achievements
Wales is leading the green agenda and is on track to secure a resource efficient future, according to WRAP chief executive Liz Goodwin.
Closed-loop dining: Inside the UK's first zero-waste restaurant
Visionary young chef Douglas McMaster is hoping to ignite behaviour change in the hospitality industry as he prepares to open the doors of the UK's first permanent zero-waste eatery in Brighton.
Arla Foods on track to zero-carbon
Arla Foods, the maker of Anchor butter and Lurpak, is on its way to operating the world's first zero-carbon milk processing facility at its plant in Aylesbury.
Wales welcomes first certified biofertiliser plant
Food waste management firm Biogen has become Wales' first producer of certified biofertiliser at its anaerobic digestion (AD) plant near Caernarfon.
Biomethane supply 'needs urgent Government intervention'
Biomethane industry executives have called for urgent Government intervention to boost supply of the renewable natural gas, which can be used by businesses as a transport fuel.
M&S turns to biogas for renewable revolution
Marks & Spencer (M&S) has agreed a landmark deal with a major biogas plant operator for the purchase of biomethane certificates which will reduce the retailer's carbon footprint by more than 6,400 tonnes.
Six renewable energy targets set for next UK Government
The renewable energy industry has united to launch a series of 'key tests' for the UK political parties ahead of the next General Election.
New brownfield renewable energy projects to power 63,000 homes
Two former collieries are being given a renewable energy makeover with the construction of a new solar farm and a £200m energy centre together set to generate up to 43.5MW of electricity.
New waste regulations spark Scotland's AD boom
Scotland's anaerobic digestion (AD) industry is set to more than double over the next two years, fuelled by the mandatory separation of food waste for businesses.
Largest food AD plant in Wales comes online
The largest food waste anaerobic digestion (AD) plant in Wales is now live with the potential to power all of the homes in one of the UK's smallest cities.
Renewable fertiliser update to drive green farming
The UK farming industry is set to become more environmentally friendly and sustainable with the publication of an updated specification for renewable fertiliser and the re-launch of the Compost Certification Scheme.
Sainsbury's announces £200m 'green loan' to support environmental commitments
In the first loan of its kind, Sainsbury's announced today (21 July) an agreement with Lloyds and Rabobank for a £200m corporate 'green loan' to invest in its carbon reduction and sustainability projects.
UK is losing £1.7bn each year due to disjointed recycling system, study finds
The UK is losing £1.7bn worth of recyclable and reusable products each year because its recycling system is disjointed, according to a new report.
Funding boost for local renewable energy projects
More than £500k has been secured by 30 local renewable energy projects across the UK as the first recipients of investment from the Government's Rural Community Energy Fund (RCEF).
Energy industry welcomes Barker's green gas policy assurance
The Anaerobic Digestion and Biogas Association (ADBA) and the Renewable Energy Association (REA) have received a reply from energy minister Greg Barker to their joint letter regarding the renewable heat incentive (RHI) biomethane-to-grid tariff consultation.
Food waste deal will power 20 M&S stores
Marks & Spencer has signed a Power Purchase Agreement (PPA) to buy back renewable energy generated from its own food waste.
Political outlook on green issues is fractured, says Huhne
The political outlook on green issues for the UK is substantially more fractured now than it was in 2010, according to former energy secretary Chris Huhne.
Is the food chain missing a closed-loop link?
The benefits of a circular model are clear when it comes to most waste streams, but how many people consider closing the loop when it comes to food waste? Can food go circular?
GIB backs £6.5m for on-farm AD plants in Northern Ireland
The Green Investment Bank (GIB) has announced £6.5m of funding for two on-farm anaerobic digestion (AD) plants in Northern Ireland.
UK AD capacity doubles in four years
The amount of organic waste treated by anaerobic digestion (AD) in the UK has more than doubled since 2010, saving five million tonnes of CO2, according to an update from the Anaerobic Digestion and Biogas Association (ADBA).
GALLERY: Behind the scenes at Ben & Jerry's new biodigester
Ben & Jerry's has become the first ice cream company in the world to power its factory using its own ice cream. Edie took a trip to the company's European factory in the Netherlands to take a closer look at 'The Chunkinator'.
VIDEO: WRAP releases on-site AD video guide
WRAP has today released a new video guide for the agricultural sector to provide practical advice on using anaerobic digestate as a fertiliser for crops. Scroll down for video.
Closing the loop: Sainsbury's powers supermarket entirely by food waste
Sainsbury's in Cannock has today (21 July) become the UK's first supermarket to run on electricity generated solely from food waste.
Severn Trent Water invests in £13m AD plant
Severn Trent Water has announced that it will be investing £13m in a new anaerobic digestion (AD) plant that will convert household food waste into energy.
Green heat technologies more affordable with RHI upgrade
Businesses across the country are being offered 'greater choice than ever before' on how to sustainably meet their heating requirements as long-awaited improvements to the world's first Renewable Heat Incentive (RHI) scheme come into force today (28 May).
United Utilities cuts carbon emissions by 11%
United Utilities has reduced its carbon footprint by 11% over the past year, with a recently opened anaerobic digestion (AD) plant taking the water giant's renewable energy production to new heights.
EU moves to scrap 'best before' labels in bid to cut food waste
A group of European Union states led by the Netherlands and Sweden are calling on the European Commission to scrap 'best before' labels on a host of long life products in a bid to cut down on food waste.
John Lewis adds biomass to sustainability credentials
The John Lewis Partnership has upped its commitment to wood heating with the installation of a Euroheat biomass boiler at a new-build spa and wellness centre for its staff.
New biogas AD plant breaks ground in Cornwall
Construction work has today (12 May) begun on the Fraddon Biogas Plant - a new biomethane-to-grid anaerobic digestion (AD) site in Cornwall.
Asda supplier opens food waste AD plant
A leading supplier to supermarket chain Asda has this week opened a 1.5MW anaerobic digestion (AD) facility that will be fuelled by food waste from its operations.
Cumbria County Council signs new composting contract to help tackle household food waste
Composting specialist Great Green Systems (GGS) has announced that its parent company Lock End Investments (LES) has signed a contract with Cumbria County Council to help divert household food waste away from landfill.
On-Farm AD Loan Fund launched by WRAP
Farmers across the country are now able to apply for a loan of up to £400,000 to build small-scale anaerobic digestion (AD) plants on their land, as part of a £3m initiative from Defra and WRAP.
Hospitality industry urged to focus on recycling food waste
Hospitality businesses across the UK should be recycling surplus food, as a new report reveals the sector is set to spend an extra £32m sending food waste to landfill this year.
Business Secretary opens London's 'first' commercial-scale AD plant
Business Secretary Vince Cable has opened London's first commercial-scale anaerobic digestion (AD) plant in Dagenham.
Wales' first purpose-built AD plant officially opens
Carwyn Jones, the First Minister of Wales, has officially opened Wales' first purpose-built anaerobic digestion facility in Llwyn Isaf, near Caernarfon.
Supermarkets should pick food banks over AD, say peers
Supermarkets should redistribute unsold food to food banks rather than sending it to be recycled via anaerobic digestion (AD), a House of Lords committee has said.
Call to launch landfill bans to create 47,500 jobs in the UK
The UK could create 47,500 skilled jobs if it kept five key waste materials out of landfill, according to new research by think tank Green Alliance.
Anaerobic digestion industry expresses dismay over DECC's FIT decision
The anaerobic digestion (AD) industry has expressed dismay over the Department of Energy & Climate Change's (DECC) decision to rule out a consultation on feed-in-tariffs (FIT).
AD processing unit Blue Conrad to return to Germany
An anaerobic digestion processing unit called Blue Conrad will be opening its doors for the last time at the end of February in Wales and returning to its home in Germany.
Glenfiddich whisky-to-energy AD facility receives council approval
Whisky producer Glenfiddich has had plans to install an anaerobic digestion (AD) facility at its Dufftown distillery in Scotland approved by local councillors.
Interface operating Dutch facility on 100% renewable energy
Carpet tile manufacturer Interface has achieved a series of sustainability milestones at its European manufacturing facility in Scherpenzeel, the Netherlands.
£8m AD plant officially unveiled in County Durham
Emerald Biogas has officially opened an anaerobic digestion facility which will recycle commercial food waste and create renewable energy in the north east.