摘要
高浓度化纤废水处理难度大、费用高,采用UASB厌氧处理,可将难降解的大分子有机物分解为小分子有机物,再通过多级接触氧化和生物炭池处理,出水COD浓度<50mg/L(对COD的去除率高达99%),达到《污水综合排放标准》(GB8978—1996)一级标准。工程实践表明,UASB的实际容积负荷超过设计值,而多级串联接触氧化池中各级微生物的数量及形态保持相对独立,表现出类似于AB工艺的特征,具有处理效果好、运行稳定、投资少等优点。
To treat chemical fiber wastewater with high concentration is difficult and high treatment cost is required. UASB treatment can decompose the refractory and large molecular organics into small molecular organics, which is then treated by muhi-stage contact oxidation process and bio-carbon tank. The effluent COD concentration is less than 50 mg/L （ COD removal rate up to 99% ）, and reaches the Iclass criteria specified in the Integrated Wastewater Discharge Standard （GB 8978 - 1996 ）. The engineering practice proves that the actual volume loading of UASB exceeds the design value, while the quantity and pattern of microbe in the tank are kept independent, showing the similar characteristics to those of AB process. The UASB process has the advantages of good treatment effect, steady operation, and less investment.
出处
《中国给水排水》
CAS
CSCD
北大核心
2006年第8期59-62,共4页
China Water & Wastewater
基金
湖南省自然科学基金重点项目(03JJY2002)
新世纪优秀人才支持计划项目(NCET-04-0768)
教育部科学技术研究重点项目(105126)
