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[1]ZHAO Zuoping,CUI Xueyan.Application on the Performance of Chitosan-Activated Sludge Composite Adsorbent on Cr(Ⅵ) Adsorption[J].Research of Soil and Water Conservation,2016,23(05):359-363.

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Application on the Performance of Chitosan-Activated Sludge Composite Adsorbent on Cr(Ⅵ) Adsorption

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 23 Number of periods: 2016 05 Page number: 359-363 Column: Public date: 2016-10-28

Title:: Application on the Performance of Chitosan-Activated Sludge Composite Adsorbent on Cr(Ⅵ) Adsorption

Author(s):: ZHAO Zuoping^1,2, CUI Xueyan³; 1. College of Chemical and Environmental Science, Shaanxi University of Technology, Hanzhong, Shaanxi 723001, China;
2. Biological Resources Comprehensive Development Collaborative Innovation Center in Qin-Ba Mountain Area, Hanzhong, Shaanxi 723001, China;
3. School of Environmental Sciences & Engineering, Zhejiang Gongshang University, Hangzhou 310018, China

Keywords:: chitosan; adsorption; Cr-bearing waste water; activated sludge; composite adsorbent

CLC:: X506;X52

DOI:: -

Abstract:: In order to understand the adsorption capacity of chitosan-activated sludge composite adsorbent in waste water treatments, and improve the adsorption performance to heavy metals, the composite adsorbent was produced by coating activated sludge using chitosan, and the effects of foaming agent, setting liquid and cross linking agent on its adsorption performance were discussed in this paper. The results showed that the adsorption capacity of chitosan-activated sludge composite adsorbent on Cr(Ⅵ) in Cr-bearing waste water varied because of different concentrations of setting liquid, foaming agent and cross linking agent. The 2.0 g/L NaOH as the setting liquid, 10% NH₄HCO₃ as the foaming agent, and 2.5% ECH as the cross linking agent had the optimum condition for Cr(Ⅵ) adsorption in Cr-bearing waste water with Cr⁶⁺ concentration of 10 mg/L. The present study can provide the reference for innovated utilization of residual sludge, and also offer a new method for waste water treatment.

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