SBR短程硝化反硝化技术处理煤制氢废水  

Treatment of Coal Gasification Wastewater by Short-cut Nitrification-denitrification Process

作　　者：王刚[1] 翟亚男 高会杰 WANG Gang;ZHAI Ya-nan;GAO Hui-jie(Dalian Research Institute of Petroleum and Petrochemicals,Sinopec,Dalian Liaoning,116045,China;Geophysical Exploration Academy of China Metallurgical Bureau,Baoding Hebei 071051,China)

机构地区：[1]中国石化大连石油化工研究院,辽宁大连116045 [2]中国冶金地质总局地球物理勘察院,河北保定071051

出　　处：《当代化工》2021年第12期2896-2900,共5页Contemporary Chemical Industry

摘　　要：在SBR反应器中研究了短程硝化反硝化技术对煤气化废水的脱氮效果,并进行对比实验。投加少量菌剂的反应器15天后即可实现短程硝化过程,出水氨氮、COD、总氮质量浓度稳定达标,而未投加的则需要38天,且出水氨氮质量浓度易波动。短程硝化反硝化过程建立后,两组实验污泥中短程硝化菌占比分别为1.4%和1.1%,反硝化菌种类及占比也较启动初期明显增多,该研究反硝化过程甲醇用量与工业装置反硝化过程运行相比降低了45%。In this experiment,the nitrogen removal from coal gasification wastewater by short-cut nitrification-denitrification process was studied in SBR reactor.Two groups of experiments with and without short-cut nitrification bacteria were set up for comparison.The short-cut nitrification process was realized after 15 days in the reactor with a small amount of short-cut nitrification bacteria added,and the mass concentrations of ammonia,COD and total nitrogen in the effluent were stable up-to-standard,while it took 38 days in the reactor without short-cut nitrification bacteria,and the concentration ammonia in the effluent was fluctuant.After the establishment of the short-cut nitrification-denitrification process,the proportion of short-cut nitrification bacteria in the sludge in the two reactors was 1.4%and 1.1%,respectively,and the species and proportion of denitrification bacteria were also significantly increased compared with the initial stage.In this study,the methanol consumption in the denitrification process was reduced by 45%compared with the denitrification process in industrial units.

关 键 词：煤气化废水 SBR 短程硝化-反硝化 脱氮 

分 类 号：X703[环境科学与工程—环境工程]