Feasibility of an innovative integrated process of simultaneous desulfurization and denitrification for high strength wastewater

作     者：王爱杰 刘春爽 任南琪 邓旭亮 万春黎 于振国 许新 

作者机构：School of Municipal and Environmental EngineeringHarbin Institute of Technology 

出 版 物：《Journal of Harbin Institute of Technology(New Series)》 (哈尔滨工业大学学报（英文版）)

年 卷 期：2008年第15卷第1期

页      面：13-17页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：Sponsored by the New Century Distinguished Experts Supporting Program (Grant No 2005601310) 

主　　题：innovative process nitrogen balance simuhaneous desulfurization and denitrification sulfur balance wastewater treatment 

摘      要：An anaerobic expanding-bed reactor was adopted to investigate the feasibility of an innovative integrated process of simultaneous desulfurization and denitrification （SDD） for high strength wastewater. In the reactor, heterotrophic bacteria （including sulfate reducing bacterium and denitrifying bacteria） and autotrophic bacteria （ including Thiobacillus denitrificans） cooperated together by incubating and enriching functional bac- teria on different carriers in the anaerobic activated sludge. Synthetic wastewater with high concentrations of sulfate and nitrate was employed. The experimental resuhs showed that the removal efficiency of sulfate and nitrate was above 85% , elemental sulfur was observed while nitrate was absent in effluent. The balance of sulfur, nitrogen and electron was discussed respectively, which indicated that the integrated SDD process could be actualized. These resuhs might provide a guidance to further investigate the key factors affecting the integrated SDD process and to improve the efficiency of desulfurization and denitrification in wastewater treatment.