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《Journal of Harbin University of Civil Engineering and Architecture》 2003-06
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Stabilization and control of alkalinity during sulfate-reduction

WANG Ai-jie;REN Nan-qi;LIN Ming;DU Da-zhong, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China, E-mail: waj05782003@163. com  
Continuous-flow test was conducted in an acidogenic sulfate-reducing reactor supplied with sulfate- laden wastewater to investigate the stabilization and control of alkalinity during sulfate reduction. When the highest sulfate removal rate was achieved at different experimental stages and was maintained at a stable level, the following issues were discussed: the constitution of total alkalinity and its calculation, the effect of volatile fatty acid (VFA) and pH value on the stability of alkalinity, and the conversion of different kinds of alkalini- ty. The experimental results showed that alkalinity increased during sulfate-reduction, and different form of al- kalinity could convert each other to a certain. The constitution of total alkalinity was closely related to pH val- ue. Sulfate removal rate and the value of alkalinity could reach the highest level with pH of 6.0~6.2. Most of the alkalinity in acidogenic sulfate-reducing reactor existed in the form of Ac~--alkalinity but the cushion capa- bility was controlled under the balance of H_2CO_3/HCO_3~-. 300 ~ 500 mg/L alkalinity in influent was necessa- ry for the balance and adjustment of alkalinity in such a reactor.
【Fund】: 国家自然科学基金(50208006);; 黑龙江省自然科学基金(E200026)
【CateGory Index】: X703
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【Co-references】
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1 Zhao Dan,Ren Nanqi,Wang Aijie (Research Center of Environment and Bio-technology, Harbin Institute of Technology,Harbin 150090);Fermentation Type and Climax Community Controlled by pH、ORP[J];Chongqing Environmental Science;2003-02
2 LU Gang,ZHENG Ping (Department of Environmental Engineering,Zhejiang University,Hangzhou,310029,PRC);The sludge granulation in biological treatment of wastewater[J];Journal of Northeast Agricultural University;2004-02
3 LIU Guangmin,REN Nanqi,WANG Xu,DU Dazhong,WANG Aijie,ZHEN Weidong(School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China);Continuous Flow Completely Stirred Bio-film Reactor for Treatment of Sulfate Wastewater[J];China Water & Wastewater;2003-10
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7 REN Nan-qi,WANG Ai-jie ZHEN Wei-dong (Research Center of Environmental Bio-technology Harbin Institute of Technology Harbin 150090 China;Ecology of SRB in anaerobic bio-treatment reactor[J];Journal of Harbin University of Civil Engineering and Architecture;2001-01
8 REN Nan-qi WANG Ai-jie LI Jian-zheng DU Da-zhong (School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China);Sulfide oxidation bacteria and innovative sulfide oxidation process[J];;2003-03
9 QIN Zhi1,2;REN Nan-qi1;LI Jian-zheng1;YAN Xian-feng1 1. School of Municipal anti Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China, 2. School of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150080, China;Superacid state of acidogenic phase and controlling strategy for recovery[J];Journal of Harbin Institute of Technology;2003-09
10 WANG Ai jie 1,2 ,REN Nan qi 1,JI Hong fang 3, LI Jian zheng 1, GUO Wan qian 1 (1.Research Center of Environmental Biotechnology, Harbin Institute of Technology, Harbin 150090, China; 2. Graduate School of Engineering Mechanics, National Eart;Effect of key factors on sulfate reduction in an acidogenic sulfate-reducing reactor[J];Journal of Harbin Institute of Technology;2002-04
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