环境工程学报2024，Vol.18Issue(1)：209-219,11.DOI:10.12030/j.cjee.202311033
高盐废水体系运行模式对活性污泥颗粒化过程的影响
Effect of operation modes on granulation process of activated sludge in treatment of hypersaline wastewater
摘要
Abstract
Aerobic granular sludge(AGS)technology has shown great application potentials in the treatment of hypersaline organic wastewater.The effect of operation modes on granulation process under hypersaline stress was still unknown.In this study,three sequencing batch reactors(SBRs)were used to investigate the granulation process of aerobic activated sludge and the efficiency of hypersaline wastewater treatment under different operation modes,including aerobic mode(R1)and anaerobic/aerobic mode(R2:anaerobic plug-flow feeding for 30 min,R3:anaerobic plug-flow feeding for 120 min).The results showed that the granulation time of Rl,R2,and R3 was similar(granulation completion on Day 13,13,and 10),whereas the particles cultivated in R3 had dense structure and high PN/PS content.Under hypersaline conditions,all three SBRs could achieve high TOC removal efficiencies(＞97％),NH4+-N removal efficiencies of Rl and R2 were both greater than 96％,while R3 was fluctuated between 50％～70％,which might be due to the inhibition of nitrification reaction by sulfate-reducing bacteria(Desulfovibrio and Fusibacter)with the generation of S2-during the long anaerobic plug-flow feeding period.This study can provide a useful reference for aerobic granulation in hypersaline wastewater.关键词
好氧颗粒污泥/高盐废水/运行模式/厌氧推流进水/造粒Key words
aerobic granular sludge/hypersaline wastewater/operation mode/anaerobic plug-flow feeding/granulation分类
资源环境引用本文复制引用
刘昌莘,韩昫身,陈浩,金艳,于建国..高盐废水体系运行模式对活性污泥颗粒化过程的影响[J].环境工程学报,2024,18(1):209-219,11.基金项目
国家自然科学基金青年科学基金项目(52300085) （52300085）
上海市青年科技英才扬帆计划项目(20YF1409500) （20YF1409500）
