环境工程学报2012，Vol.6Issue(11)：4059-4064,6.
新型活性污泥的培养及其处理高盐有机废水
Cultivation of novel activated sludge and saline wastewater treatment
摘要
Abstract
Some sea mud can be filled in aerobic reactor with natural seawater and nutrients to become activated sludge.It performs good activity in treating saline wastewater and it was named marine activated sludge.After a ten-weeks long cultivation,the sludge volume index(SVI) increased from 19 mL/g to 70 mL/g,while CODMn degradation rate peaks 90% and degradation rate of ammonia nitrogen reached 45% after 12-hour reaction.Furthermore,feeding sludge once a day has the highest biodegrability.And dextrose is better than starch as a carbon source for cultivation.Also,marine activated sludge has a stronger biodegrability in treating saline wastewater and a better stability against salinity shift than the conventional activated sludge.The CODMn degradation rate is over 70% and degradation rate of ammonia nitrogen is over 30% after 12-hour reaction in the case that the salinity is under 6%,both of which present applied values of saline wastewater treatment.However,an obvious biological activity inhibition is observed in the case that the salinity rate is above 6%.The marine activated sludge has a higher resistance to salinity variation.Even in low salinity,the marine activated sludge's stability of the degradation rate of ammonia nitrogen overmatches conventional activated sludge.关键词
海泥/活性污泥/含盐/废水处理Key words
sea mud/activated sludge/saline/wastewater treatment分类
资源环境引用本文复制引用
谭淞文,李维国,公天齐,刘伟,杨慧茹,徐爱琴,刘君虎,徐海滨..新型活性污泥的培养及其处理高盐有机废水[J].环境工程学报,2012,6(11):4059-4064,6.基金项目
城市水资源和环境国家重点实验室开放研究基金 （）
