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Breakout session 2 Sludge Summary

Breakout session 2 Sludge Summary. Aims of the session. Identify technology solutions already available Identify possible technology development areas Identify opportunities for collaborative R&D. Needs and Issues. No established community

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Breakout session 2 Sludge Summary

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  1. Breakout session 2SludgeSummary

  2. Aims of the session • Identify technology solutions already available • Identify possible technology development areas • Identify opportunities for collaborative R&D

  3. Needs and Issues • No established community • We need broad experience across biochemistry, accelerator science and end-users • Industry steer is heavily focused on maximising energy recovery • Very high volume industrial processing (5M litres per day at a single plant) • Little measurement on the input side (oxygen demand and ammonia content). Problem therefore not well defined • E-beam will only ever be one step in a more complex process • Needs to be robust in a dirty environment (8000+ hrs per year) • 2 areas where accelerators may be relevant: • Pre-digester, to improve efficiency in the digesting process • Post-digester, to clean up output gases

  4. Other observations • A few pilot plants have demonstrated some aspects, no widespread take-up. Why? • What’s required: High volume, low cost, ultra-reliable system. • No-one is in disagreement that there may be something to offer in this area – it’s worth investigating.

  5. Next steps... • Mini project to confirm what e-beam has to offer • Define exactly what the physical layout and biochemical requirements are • Confirm e-beam can meet these requirement at a small scale • Define radiation requirements • Leading to accelerator design • Optimise for reliability, cost effectiveness etc. • Make an outline proposal for an industrial scale facility with estimates for capital and operating expenditure • This challenge is multi-disciplinary. STFC needs advice from industry, chemists, biologists, accelerator physicists...and to find the most appropriate funding route.

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