Page 66 - 2016地大报告-电子书

2016

【环境学院 2016 年发表 T1 及以上学术论文简介】

1.Influence of wastewater sludge treatment using combined peroxyacetic acid
oxidation and inorganic coagulants re-flocculation on characteristics of extracellular

polymeric substances (EPS)（高被引论文）
作 者：Zhang, WJ ( 张伟军 ) [ 1 ] ; Cao, BD (Cao, Bingdi)[ 2 ] ; Wang, DS (Wang,

Dongsheng) [ 1,2 ] ; Ma, T (Ma, Teng) [ 1 ] ; Xia, H (Xia, Hua) ; Yu, DH (Yu, Dehong) [ 3 ]
[ 1 ]
WATER RESEARCH 卷 :88 页 :728-739 出版年 : JAN 1 2016

摘 要：Extracellular polymeric substances (EPS) are highly hydrated biopolymers and
play important roles in bioflocculation, floc stability, and solid-water separation processes.

Destroying EPS structure will result in sludge reduction and release of trapped water. In this
study, the effects of combinedprocess of peracetic acid (PAA) pre-oxidation and chemical re-

flocculation on morphological properties and distribution and composition of EPS ofthe
resultant sludge flocs were investigated in detail to gain insights into the mechanism involved

in sludge treatment. It was found that sludgeparticles were effectively solubilized and
protein-like substances were degraded into small molecules after PAA oxidation. A higher

degradation ofprotein-like substances was
observed at acid environments under

PAA oxidation. Microscopic analysis revealed
that no integral sludge floc was observed

after oxidation with PAA at high doses. The floc
was reconstructed with addition of inorganic coag

ulants (polyaluminium chloride (PACl) and ferric
chloride (FeCl3)) and PACl performed better in

flocculation due to its higher charge neutralization
and bridging ability. Combined oxidative lysis

and chemical re-flocculation provide a novel
solution for sludge treatment. (C) 2015 Elsevier Ltd. All rights reserved.

论文链接：https://doi.org/10.1016/j.watres.2015.10.049
2. In-situ arsenic remediation by aquifer iron coating: Field trial in the Datong

basin, China
作 者 :Xie, XJ ( 谢先军 ) [ 1,2 ] ; Pi, KF (Pi, Kunfu) [ 1,2 ] ; Liu, YQ (Liu, Yaqing) [ 1,2 ] ; Liu,

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