School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China.
School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China.
Bioresour Technol. 2020 Aug;309:123346. doi: 10.1016/j.biortech.2020.123346. Epub 2020 Apr 8.
Three-dimensional electrode biological aerated filter (3DE-BAF) with particulate bioelectrode from lithium slag was used to simultaneously remove diclofenac and clofibric acid from the synthetic domestic sewage, and the combined effects of electrical current and nonsteroidal antiinflammatory drugs (NSAIDs) on microbial community was analyzed. The results indicated that (1) the average diclofenac and clofibric acid removal efficiency in the 3DE-BAF firstly increased, attained the peak of 79.40 ± 6.74% and 69.50 ± 6.26% at 0.35 A, and then decreased to 71.82 ± 4.90% and 55.92 ± 5.17% at 0.40 A, respectively; (2) the concentration of the diclofenac and clofibric acid in 3DE-BAF gradually decreased with the increase of reactor height; (3) the current intensity and space position affected the microbial structure at the different level; (4) at the optimum current intensity, Thiothrix, Flavobacteriaceae, Halothiobacillaceae, Hydrogenophaga, and Comamonadaceae accounted for the main bacterial community for removal diclofenac and clofibric acid in the 3DE-BAF.
采用颗粒生物电极的三维电极生物曝气滤池（3DE-BAF）同时去除合成生活污水中的双氯芬酸和氯贝酸，并分析电流和非甾体抗炎药（NSAIDs）对微生物群落的综合影响。结果表明：（1）3DE-BAF 中双氯芬酸和氯贝酸的平均去除效率先增加，在 0.35 A 时达到 79.40 ± 6.74%和 69.50 ± 6.26%的峰值，然后在 0.40 A 时分别降低至 71.82 ± 4.90%和 55.92 ± 5.17%；（2）双氯芬酸和氯贝酸在 3DE-BAF 中的浓度随反应器高度的增加而逐渐降低；（3）电流强度和空间位置在不同水平上影响微生物结构；（4）在最佳电流强度下，3DE-BAF 中用于去除双氯芬酸和氯贝酸的主要细菌群落为硫丝菌属、黄杆菌科、卤单胞菌科、噬氢菌属和丛毛单胞菌科。
