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首页> 外文期刊>Separation and Purification Technology >Rapid cultivation of aerobic granule for the treatment of solvent recovery raffinate in a bench scale sequencing batch reactor
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Rapid cultivation of aerobic granule for the treatment of solvent recovery raffinate in a bench scale sequencing batch reactor

机译：台式规模间歇反应器中需氧颗粒的快速培养，用于处理溶剂回收萃余液

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Aerobic granular sludge (AGS) was cultivated in a bench scale sequencing batch reactor within 21 days. Strategy of the rapid startup was inoculated with part of mature AGS during cultivation, while aerobic biological selector was implemented for the inhibiting outgrowth of filamentous bacteria and fast selection of zoogloea bacteria. Then, the cultivated AGS was employed for the treatment of solvent recovery raffinate. Stable AGS was successfully domesticated after 55 days under strategy of gradually increase the proportion of real wastewater in influent. The domesticated AGS was orange, irregular shape, smooth and compact. SVI, SV30/SV5, MLVSS/MLSS, EPS, PN/PS, average particle size, granulation rate, (SOUR)(H) and (SOUR)(N) of AGS were 19.06 mL/g, 0.97, 0.55, 30.05 mg/g MLVSS, 1.10, 1.28 mm, 98.87%, 32.47 and 7.97 mg O-2/h g VSS respectively. Finally, COD, TIN, NH4+-N and TP of the effluent were lower than 25.9 mg/L, 1.64 mg/L, 1.13 mg/L and 0.21 mg/L, and their removal rate was more than 98.43%, 97.12%, 98.02% and 98.09% respectively. Thus, COD, TP removal, nitrification and denitrification were realized in a single bioreactor. The result indicated that the feasibility of AGS for high C/N ratio industrial wastewater treatment. (C) 2015 Elsevier B.V. All rights reserved.
机译：好氧颗粒污泥（AGS）在台式规模的间歇式反应器中培养21天。在培养过程中，部分成熟的AGS接种了快速启动策略，而有氧生物选择器则用于抑制丝状细菌的生长和快速选择人畜共患病细菌。然后，将培养的AGS用于处理溶剂回收残液。在逐渐增加进水中实际废水比例的策略下，稳定的AGS在55天后成功驯化。驯化的AGS为橙色，不规则形状，光滑且紧凑。 SVI，SV30 / SV5，MLVSS / MLSS，EPS，PN / PS，平均粒径，造粒率，AGS的（SOUR）（H）和（SOUR）（N）为19.06 mL / g，0.97、0.55、30.05 mg / g MLVSS，1.10、1.28毫米，98.87％，32.47和7.97 mg O-2 / hg VSS。最后，出水的COD，TIN，NH4 + -N和TP分别低于25.9 mg / L，1.64 mg / L，1.13 mg / L和0.21 mg / L，去除率分别大于98.43％，97.12％，分别为98.02％和98.09％。因此，在单个生物反应器中实现了COD，TP的去除，硝化和反硝化。结果表明AGS在高C / N比工业废水处理中的可行性。 （C）2015 Elsevier B.V.保留所有权利。

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