Yue Xiu, Tang Jia-Li, Yu Guang-Ping, Ji Shi-Ming, Liu Zhu-Han
Shenyang Institute of Automation in Guangzhou, Chinese Academy of Sciences, Guangzhou 511458, China.
Huan Jing Ke Xue. 2017 Sep 8;38(9):3769-3780. doi: 10.13227/j.hjkx.201702192.
The traditional biochemical treatment of printing and dyeing wastewater has limited efficiency. This study investigated whether HO could strengthen the biological ability of the hydrolytic acidification/biological contact oxidation process (A/O), which effectively treats the printing and dyeing wastewater. After biofilm formation and the biochemical system startup and operation by HO, the system was successfully started and steadily operated when HOwas added into reactor A with the HO voluve fraction of 3 mL·L, doses of 100.0 mL, the flow velocity of 0.67 mL·min, and dosing frequency of once a day. The experimental results showed that the average removal efficiencies of COD, ammonia nitrogen, PVA, and color of printing and dyeing wastewater were 89.8%, 96.7%, 87.4%, and 92.1%, respectively. The microorganism community structures of reactor A and reactor O in this system were analyzed by high-throughput sequencing of 16S rDNA amplicon. The results demonstrated that the three dominant microbial strains in reactor A were Proteobacteria, Bacteroidetes, and Verrucomicrobia, and in reactor O were Planctomycetes, Proteobacteria, and Acidobacteria.
传统的印染废水生化处理效率有限。本研究调查了羟基自由基（HO）是否能增强水解酸化/生物接触氧化工艺（A/O）处理印染废水的生物能力。在通过HO形成生物膜并启动和运行生化系统后，当以3 mL·L的HO体积分数、100.0 mL的剂量、0.67 mL·min的流速和每天一次的投加频率将HO添加到A反应器中时，系统成功启动并稳定运行。实验结果表明，印染废水的化学需氧量（COD）、氨氮、聚乙烯醇（PVA）和色度的平均去除率分别为89.8%、96.7%、87.4%和92.1%。通过对16S rDNA扩增子进行高通量测序，分析了该系统中A反应器和O反应器的微生物群落结构。结果表明，A反应器中的三种优势菌株为变形菌门、拟杆菌门和疣微菌门，O反应器中的优势菌株为浮霉菌门、变形菌门和酸杆菌门。
