Re: Submission of Manuscript, Entitled Effect of Ni (II) on Properties of Bulking Activated
Re: Submission of manuscript, entitled “The effect of continuous exposure of copper on the properties and extracellular polymeric substances (EPS) of bulking activated sludge”, forEnvironmental Science and pollution Research
Jia Lia, Xiang Liua*, Yan Liua*,Juliana Ramsayb, Chenchao Yaoa, Ruihua Daia
aDepartment of Environmental Science and Engineering, FudanUniversity, 220 Handan Road, Shanghai 200433, China
bChemical Engineering, Queen’s University, Kingston, Ontario, CanadaK7L 3N6
Corresponding author phone:86-21-6564-2018; fax: 86-21-6564-3597;
Email: .
Dear Sir or Madam:
Attached please find the original manuscript, entitled“The effect of continuous exposure of copper on the properties and extracellular polymeric substances (EPS) of bulking activated sludge”, for your consideration to be published in Environmental Science and pollution Research.All the authors mutually agree that it should be submitted to Water Research. We promise that it is the original work of the authors.
This research work presents the change on the properties and extracellular polymeric substances (EPS) of bulking activated sludge whencontinuously exposed to 20mg/L copper.The recovery of an activated sludge system to a single exposure to a toxic concentration of Cu (II) has been previously studied.However, this is the first study to investigate the recovery of an activated sludge system after 160 days of continuous exposure to Cu (II). Initially, the continuous addition of 20 mg/L Cu (II) seriously inhibited the removal of sodium benzoate (provided as a model organic pollutant)by activated sludgein a sequencing batch reactor (SBR). After 40 days of acclimation, the removal efficiency showed a slight but unsteady recovery and the settling and dewatering properties improved, indicating that sludge bulking had been inhibited. The proportion of loosely bound extracellular polymeric substances (EPS) in the total EPS increased with time andthe relative composition of the total organics waspolysaccharide > humic acid> protein> DNA. The effects of copper onthe composition of EPS, the settling and dewatering properties of bulking activated sludge were also discussedfor the first time in this paper.
This article had 3985 words including3758words in title, abstract, text, acknowledgement and referencewords contributed by6figures and 1 table.
We’d like to recommend three referees to review this paper according to requirements. Their current e-mail addresses and mailing addresses are as follows:
- Prof. J.H. Tay
Division of Environmental & Water Resources Engineering, Institute of Environmental Science & Engineering, NanyangTechnologyUniversity, Nanyang Avenue, Singapore639798. Tel.: 65-6790-5308; Fax: 65-6791-0676
E-mail:
- Jeff Kuo
Department of Civil & Engineering, CaliforniaStateUniversity, Fullerton. CA92834, USA
Tel: 657-278-3995, Fax: 657-278-3995
Email:
- Yin-guang Chen
State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China
Tel.: +86 21 65981263; fax: +86 21 65986313.
E-mail:
We hope that you will find this manuscript worthy of publication, and look forward to hearing from you soon.
Sincerely yours,
Dr.XIANG LIU
Prof. YANLIU
CC: Miss Jia Li
Prof. Juliana A. Ramsay
Mr. Chenchao Yao
Dr. Ruihua Dai
Title:The effect of continuous exposure of copper on the properties and extracellular polymeric substances (EPS) of bulking activated sludge
Orders of Authors: Jia Lia, Xiang Liua*, Yan Liua*, Juliana Ramsayb, Chenchao Yaoa, Ruihua Daia,
Corresponding Author:Xiang Liu, Yan Liu
Contact information:
Jia Li
Department of Environmental Science and Engineering, FudanUniversity, Shanghai, 200433, China
Telephone: +86-55664403
Email address:
Xiang Liu
Department of Environmental Science and Engineering, FudanUniversity, Shanghai, 200433, China
Telephone: +86-21-65642018
Email address:
Yan Liu
Department of Environmental Science and Engineering, FudanUniversity, Shanghai, 200433, China
Telephone: 86-21-6564-3348; fax: 86-21-6564-3597
Email address:
J. A.Ramsay
Chemical Engineering, Queen’s University, Kingston, Ontario, CanadaK7L 3N6
Fax: +613-533-6637;
Email address:
Chenchao Yao
Department of Environmental Science and Engineering, FudanUniversity, Shanghai, 200433, China
Telephone: +86-55664403
Email address:
Ruihua Dai
Department of Environmental Science and Engineering, FudanUniversity, Shanghai, 200433, China
Telephone: 86-21-6564-4244; fax: 86-21-6564-3597
Email address: