发明名称 |
ANAEROBIC TREATMENT OF INDUSTRIAL WASTEWATER |
摘要 |
Feed water is processed in an anaerobic digester. A solid-liquid separation device, for example a sludge screw thickener, treats a stream drawn from the digester in a recirculation loop. The solids portion is returned to the digester to increase the solids retention time and the TSS concentration in the digester. A liquid portion with less than 5% of the solids in the stream is removed and optionally treated further. The flow rate to the solid-liquid separation device is preferably greater than the influent flow rate. The solid-liquid separation device may receive digestate at a TSS concentration of 4% or more and return a solids portion having a TSS concentration of over 10%. The feed water is preferably one or more industrial waste streams having a COD concentration of 20,000 to 50,000 mg/L and a TSS concentration from 1-5%. The organic loading rate may be 10-12 kg/COD/m3/day. |
申请公布号 |
EP2838855(A1) |
申请公布日期 |
2015.02.25 |
申请号 |
EP20130777972 |
申请日期 |
2013.04.19 |
申请人 |
ANAERGIA INC. |
发明人 |
THEODOULOU, MICHAEL DAVID;JOSSE, JUAN CARLOS |
分类号 |
C02F3/28;B01D29/11;B01D29/23;B01D29/25;B01D29/35;B01D29/64;B01D29/68;B01D29/74;B01D33/11;B01D33/46;B01D33/50;B01D33/80;B30B9/12;C02F3/12;C02F3/30;C02F11/04;C02F11/12;C02F101/32 |
主分类号 |
C02F3/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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