Effect of As(III) on Activated Sludge Character in SBRs System
[1]WANG Yan,LIU Feng-Bin,LANG Long-Qi,et al.Effect of As(III) on Activated Sludge Character in SBRs System[J].Journal of Zhengzhou University (Engineering Science),2013,34(05):109-112.[doi:10.3969/j.issn.1671-6833.2013.05.024]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
34
Number of periods:
2013 05
Page number:
109-112
Column:
Public date:
2013-09-10
- Title:
- Effect of As(III) on Activated Sludge Character in SBRs System
- Keywords:
- As( III ) ; SBRs; activity of activated sludge ; settling ability.
- CLC:
- X523
- Abstract:
- This paper studies the effect of As ( Ⅲ ) on the activated sludge in the sequencing batch reactorsystem. Rl and R2 ( control CK) were installed for contrast test. As( Ⅲ ) was increasingly added in R1 andthe activated sludge character and effluent quality were termly tested. The results showed that COD removalrate of Rl maintained at ca.90% which is 5% lower than that of R2. With stepwise augmentation of As(III), the flocs became disperse and tiny , SV130 increased from 37 mL/ g to 97 mL /g , which was proba-bly due to the decomposed structure of flocs caused by partial microorganisms poisoning.Compared with R2,the microbiological diversity was relatively simple,especially the protozoa disappeared under the high concen-tration of As().
- References:
- -
- Similar References:
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Last Update:
1900-01-01