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231224s2015 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2015.296
|2 doi
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|a pubmed24n0842.xml
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|a (NLM)26360757
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|a DE-627
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|a eng
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|a Wu, J
|e verfasserin
|4 aut
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|a Enhanced anaerobic digestion of waste activated sludge of low organic content in a novel digester
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 30.11.2015
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|a Date Revised 12.09.2015
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|a published: Print
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|a Citation Status MEDLINE
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|a A novel digester, termed an internal circulation anaerobic digester (ICAD), was developed to intensify sludge digestion. It consists of reaction zone, settling zone, thickening zone, riser and downcomer. Internal circulation in the digester is intensified by backflow biogas. The mesophilic ICAD treating thermal pretreated waste activated sludge with volatile suspended solids (VSS)/suspended solids (SS) of 0.45-0.49 was conducted in this study to reduce and stabilize the low organic content sludge. The results showed that the VSS removal rate and biogas rate reached 46.0% and 0.72 m(3)/kg VSS(fed) at hydraulic retention time (HRT) of 15 days. VSS/SS and soluble chemical oxygen demand (SCOD) of the effluent sludge ranged from 0.39 to 0.41 and 274 mg/L to 473 mg/L, respectively, under various HRTs from 10 to 27 days. The degradation ability of ICAD derived from the improved mass transfer by internal circulation and long solid retention time at short HRT is compared with continuous stirred tank reactor
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Sewage
|2 NLM
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|a Jiang, Y
|e verfasserin
|4 aut
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|a Cao, Z P
|e verfasserin
|4 aut
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|a Li, Z H
|e verfasserin
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|a Hu, Y Y
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|a Li, H Z
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|a Zuo, J E
|e verfasserin
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|a Wang, K J
|e verfasserin
|4 aut
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 72(2015), 6 vom: 01., Seite 966-73
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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| 773 |
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|g volume:72
|g year:2015
|g number:6
|g day:01
|g pages:966-73
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|u http://dx.doi.org/10.2166/wst.2015.296
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