Acclimation of anaerobic granular sludge and 2,6-DNP removal in the upflow anaerobic sludge blanket (UASB) reactors
Characteristics of anaerobic granules before and after acclimation were studied using glucose as co-substrate. Removal efficiencies of 2,6-dinitrophenol (2,6-DNP) using two different co-substrates were investigated in two lab-scale UASB reactors. Granular sludge acclimatized to the wastewater containing 2,6-DNP through 3 months. After acclimation, SEM pictures of the granular biomass showed that Filamentous bacteria were the predominant bacteria on the surface of granules. Throughout the study of 2,6-DNP anaerobic degradation with different co-substrates, influent COD concentration was kept constant as about 2500 mg 1-1. Maximum 2,6-DNP concentration was 170.0 mg 1-1 and 2,6-DNP removal efficiencies were always more than 98.0% using glucose as co-substrate, keeping hydraulic retention time (HRT) as 35 h. When using sodium acetate as co-substrate and keeping HRT as 30 h, maximum 2, 6-DNP concentration was up to 189.5 mg 1-1 and over 99.2% 2,6-DNP removal efficiencies could be obtained.
Zonglian She En Shi Xiaohui Fu Jian Wu Lina Jiang Liang Guo
Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of Chin Key Lab of Marine Environmental Science and Ecology,Ministry of Education,Ocean University of China, Key Lab of Marine Environmental Science and Ecology, Ministry of Education,Ocean University of China Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of Chin
国际会议
哈尔滨
英文
352-361
2011-03-26（万方平台首次上网日期，不代表论文的发表时间）