A sustainability anti-infective pharmaceutical wastewater treatment technology: multi-stage vertical variable diameter membrane bioreactor with DO online controlling
A sustainability anti-infective pharmaceutical wastewater treatment technology: multi-stage vertical variable diameter membrane bioreactor with DO online controlling
复制标题
可持续的抗感染制药废水处理技术：DO在线控制多级立式变直径膜生物反应器
DOI：
10.1016/j.biortech.2020.123507
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发表时间：
2020
影响因子：
11.4
通讯作者：
Lite Wenyu
中科院分区：
文献类型：
--
作者：
Hu Dongxue;Luo Kongyan;Ma Haitao;Min Hongchao;Zhao Yuanyi;Cui Yubo;Wang Shanshan;Ning Nan;Zhang Lufeng;Lite Wenyu
溶解氧 (DO) 的正确选择在好氧处理中非常重要。本文研制了多级立式变径膜生物反应器来处理含6-APA和头孢曲松钠的制药废水。在180天的运行中，考察了不同溶解氧（0.5至6.0 mg/L）下COD、BOD5、6-APA、头孢曲松钠去除性能、污泥指数和微生物酶活性。结果表明，最佳DO范围为1.5~2.1 mg/L，COD和BOD5的最高去除率分别为87.3%±2.4%和95.3%±1.8%，相应的出水COD和BOD5分别为189 mg/L和24 mg/L。为了降低反应器能耗并保证DO的稳定性，建立了基于改进的差分进化BP模糊神经网络的控制策略，发现受控DO比非受控DO的性能和成本得到了有效改善。
The proper choice of dissolved oxygen (DO) is important in aerobic treatment. In this paper, a multi-stage vertical variable diameter membrane bioreactor was developed to treat pharmaceutical wastewater containing 6-APA and ceftriaxone sodium. In the 180 days of operation, the performance of COD, BOD5, 6-APA, ceftriaxone sodium removal, sludge index, and microbial enzyme activity under different DOs (from 0.5 to 6.0 mg/L) were investigated. The results showed that the optimal range of DO was 1.5–2.1 mg/L, and the highest removal rates of COD and BOD5were observed 87.3%±2.4% and 95.3%±1.8%, the corresponding effluent COD and BOD5were 189 mg/L and 24 mg/L, respectively. To reduce the energy consumption and ensure stability of DO in the reactor, a control strategy based on an improved differential evolution BP fuzzy neural network was built and found that the performance and cost of the controlled DO were improved effectively than that of uncontrolled DO.