Effect of Fe0 on acrylic fiber wastewater treatment in SBBR

被引：0
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作者：
机构：
[1] School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, Gansu
来源：
Wang, Y. (wye@smail.lzjtu.cn) | 1600年 / Materials China卷 / 64期
关键词：
Acrylic fiber wastewater; Identification of typical colonies; Sequencing batch biofilm reactor; Zero-valent iron;
D O I：
10.3969/j.issn.0438-1157.2013.08.042
中图分类号：
学科分类号：
摘要：
In this paper, taking acrylic wastewater from the sewage treatment workshop of a chemical fiber company in Jilin as an object, the effect of Fe0 on acrylic wastewater treatment in SBBR reactor was studied via parallel comparison test. The test results showed that: (1)It could improve the start-up rate of SBBR reactor by adding Fe0. (2)While the reactor was at the stable operation stage, in 2# reactor with added Fe0 and 1# reactor without adding Fe0, the average removal rates of CODCr were 70.7% and 60.5% and the average removal rate of NH3-N were 60.6% and 13.5%, respectively. The average removal rate of CODCr and NH3-N were improved by 10.2% and 47.1% by adding Fe0. (3)The mixed liquor suspended solids(MLSS)and mixed liquor volatile suspended solids(MLVSS)in 2# reactor with added Fe0 were 1.60 and 1.35 times than those in 1# reactor, respectively. Adding Fe0 was beneficial to the growth of heterotrophic nitrification bacteria-Alcaligenes sp., thus significantly improving NH3-N removal rate. © All Rights Reserved.
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页码：2996 / 3002
页数：6
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