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Advice Clinic: Feedstock procurement FEEDSTOCK PROCUREMENT In our regular advice column, ADBA members provide answers to some common AD queries


1. Reliability of service. AD operators need to be able to accept deliveries at agreed times. Particularly with food waste, the last thing a local authority wants is to be told there is a problem and they have to take their waste to another site, or even landfill.


Q A


2. Compliance with legislation. This may seem pretty obvious but shouldn’t be taken for granted. In fact, local authorities are increasingly expecting operators to have in place management systems that are accredited with international standards, as well as the ability to meet the PAS 110 certification for digestate.


3. Timely and accurate reporting of data. Local authorities will want to see a monthly report of the tonnages that have been recycled, as well as a breakdown of the management of any by-products. This is to enable them to meet their own data reporting requirements.”


Iain Pickles, Local Authority Manager, Biogen T +44 (0)1234 827269 E iain.pickles@biogen.co.uk www.biogen.co.uk


“What incentives can AD operators offer to local authorities, to encourage them to send their food waste to AD?”


“There are three aspects of the delivery of a food waste recycling service that would encourage more LAs to send their food waste to AD:


supplier who can offer a variety of feedstocks and work with you to develop an effective combination which is right for the biology and configuration of your plant. Consistent and quality feedstocks are crucial to optimising the performance of your site. They should have a proven track record of performance in live environments in other AD sites, or in test laboratories, so ask your feedstock provider where the feedstock has previously been used and how it performed. This will help you to make the right decision for your own plant, in relation to other feedstock supplies you may currently be using. Permit requirements is of course a key consideration; a good supplier should be able to advise on this for each individual feedstock.”


Q A


Dean Barclay, Category Manager, Amur T +44 (0)7966 428944 E dean.barclay@abagri.com www.amurenergy.co.uk


NEXT ISSUE: Sustainability criteria – one year on. Send your queries to: kate.oreilly@adbioresources.org


“How do I know if a particular feedstock will be suitable for my AD plant?”


“Understanding the balance of carbon and nitrogen in your digester is the starting point before deciding which feedstocks you need. Once you understand your requirements, you need to select a reliable feedstock


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AD & BIORESOURCES NEWS | SEPTEMBER 2016 www.huber.co.uk


rotamat@huber.co.uk


www.adbioresources.org adbioresources.org


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