摘要
某印染集聚区设计规模2×10^4 t/d废水预处理工程采用浅层气浮-水解-NSBR-高密度澄清池-纳管工艺处理印染废水。污泥采用离心浓缩脱水机脱水处理,平均污泥产出量在15 t/d,万吨废水污泥产量10 t/d左右。为实现污泥的过程减量,此工程利用微生物菌剂和后生动物的协同作用消解活性污泥。1年的运行结果表明,在不影响污水出水水质前提下,此污泥减量工程实现污泥减量效果达到28%,并且没有显著增加废水处理的运行费用。
A 20 000 t /d wastewater treatment project in a dyeing industrial district adopted air flotation-hydrolysis-NSBR-high density clarifiers-nanotube process for dyeing wastewater treatment. Excess activated sludge was treated by centrifugal dewatering process. The average daily volume of sludge output was 15 t and the tons of water sludge production was about 10 t. To achieve sludge in-situ reduction process, this project used the synergistic effect of microbial agents and metazoan for activated sludge digestion. Over one year operation showed that about 28% of excess sludge was reduced without affecting sewage effluent quality. In addition, the operating cost of wastewater treatment was not significantly increased.
作者
徐佳佳
梅荣武
王冬
李明智
Xu Jiajia Mei Rongwu Wang Dong Li Mingzhi(Environmental Science Research and Design Institute of Zhejiang Province, 310007 College of Civil Engineering and Architecture, Zhejiang University of Technology, 310014： Hangzhou, China)
出处
《水处理技术》
CAS
CSCD
北大核心
2016年第10期129-132,共4页
Technology of Water Treatment
基金
浙江省环保科技计划项目<基于多生境菌剂与微型动物同步强化的污泥原位减量技术成果转化工程>
关键词
印染废水
原位
污泥减量
dyeing wastewater
microbial agents
sludge in-situ reduction
