环境工程学报2026，Vol.20Issue(3)：676-684,9.DOI:10.12030/j.cjee.202507041
好氧颗粒污泥处理印染废水的效能及微生物机制
Performance and microbial mechanisms of aerobic granular sludge in treating printing and dyeing wastewater
摘要
Abstract
This study investigated the effects of organic loading rate(OLR)on sludge granulation and pollutant removal performance of aerobic granular sludge(AGS)cultivated in a sequencing batch reactor(SBR)treating real printing and dyeing wastewater.After 60 days of cultivation,compact AGS with a particle size of～1 mm was successfully developed.The mature granules had an extracellular polymeric substances(EPS)content of 92.22 mg L-1 and achieved removal efficiency of 88.5%for COD and 73.3%for colority.OLR was found to be critical for sludge characteristics.At and OLR of 3.0 kg·(m3·d)-1,the AGS reached its maximum average particle size(1.38 mm),highest EPS content(95.21 mg·g-1),and optimal removal efficiencies for COD(92.73%)and colority(86.35%).However,an excessive OLR of 5.0 kg·(m3·d)-1 led to sludge bulking and disintegration.Microbial community analysis revealed Proteobacteria(44.06%～49.17%)and Bacteroidetes(27.49%～29.64%)as dominant phyla,whose abundance dynamics significantly correlated with protein-dominated EPS secretion and pollutant removal.These findings elucidated the mechanistic link between OLR-driven microbial community shifts,EPS production,and treatment performance,providing theoretical and technical support for the practical application of AGS in printing and dyeing wastewater treatment.关键词
好氧颗粒污泥/胞外聚合物/有机负荷/印染废水/微生物群落Key words
aerobic granular sludge/extracellular polymeric substances/organic load rate/printing and dyeing wastewater/microbial community分类
资源环境引用本文复制引用
曹先仲,娄辉清,殷英,沈一峰..好氧颗粒污泥处理印染废水的效能及微生物机制[J].环境工程学报,2026,20(3):676-684,9.基金项目
浙江省基础公益研究计划项目(LTGS24E080003) （LTGS24E080003）
浙江省软科学研究计划项目(2025C25052) （2025C25052）
绍兴市科技计划项目(2023A13007,2024A13010) （2023A13007,2024A13010）
中国纺织工业联合会科技计划项目(2023014) （2023014）
柯桥区科技计划项目(2024KZ52) （2024KZ52）
