文档介绍：基金项目: 国家高技术研究发展经费资助项目(863计划2007AA06A411)
外循环厌氧多级生化工艺处理
煤制气废水应用实例
韩洪军,王伟,袁敏,李慧强,徐春艳,王冰
(哈尔滨工业大学,黑龙江哈尔滨 150090;)
摘要:针对中煤龙化哈尔滨煤化工有限公司的鲁奇炉煤制气废水处理工程,介绍了废水的特点、工艺流程,分析了主要的构筑物、处理效果及其运行成本。结果表明外循环厌氧多级生化组合工艺是一种切实可行的煤制气废水处理技术路线。该工艺对煤制气废水的 COD、总酚、挥发酚和氨氮的去除率分别达到95%,97%,%和90%以上,其出水浓度分别为70-100 mg/L,5-10 mg/L,0- mg/L,5-15 mg/L。工艺的处理效果稳定且运行成本低,出水水质能够达到《污水综合排放标准》(GB8978-1996)中的一级标准。
关键词:外循环厌氧;酚;煤制气废水;鲁奇炉
中文图书号:X703
Treatment of coal gasification wastewater in external circulation anaerobic and multi-stage biochemical processes
HAN Hong-jun, WANG Wei, YUAN Min, LI Hui-qiang, XU Chunyan,WANG Bing
(Harbin Institute of Technology, Harbin 150090, China)
Abstract: With the Lurgi coal gasification wastewater treatment project in China Coal Longhua, Harbin Coal Chemical Industry Co., Ltd., the wastewater characteristics and flow sheet of process were introduced and the main structures, treatment efficiency and operation cost were analyzed. The results indicated bined process of external circulation anaerobic reactor and multi-stage biochemical process was a practicable technology route for coal gasification wastewater treatment. The removal efficiencies of COD, total phenols, volatile phenols and ammonia nitrogen were above 95%, 97%, % and 90% and the effluent concentrations were in the range of 70-100 mg/L, 5-10 mg/L, 0- mg/L and 5-15 mg/L, respectively. The performance was stab