摘要
旁路水解酸化技术既能实现污泥减量,又能为污水脱氮除磷补充碳源。采用水解酸化作为污泥旁路减量化技术,研究其污泥减量的运行性能和机理,同时考察了对污水处理工艺污染物去除的影响。采用污泥水解酸化旁路处理,得到污泥减量率为30%,其中水解酸化的贡献为0.7%,延长污泥龄贡献为17.1%,能量解偶联等贡献为12.2%。污泥水解酸化旁路处理对污水生物处理工艺的出水水质以及微生物活性影响不显著。水解酸化过程中会降低微生物脱氮活性,但对污水处理主反应器中微生物活性影响较小。污泥旁路水解酸化污泥减量工艺中,对污泥减量机理的解析,需要综合考虑水解酸化与污泥龄等对污泥减量效果的影响。
The bypass hydrolysis acidification can reduce the sludge production,meanwhile contribute carbon source for denitrification and phosphorus removal from wastewater. Performance and mechanism of sludge reduction and the effect of hydrolysis acidification on pollutants removal from wastewater were examined in the bypass system. The sludge reduction ratio was 30% including the contribution of the hydrolysis acidification（ accounted for about 0. 7%）,effect of extended sludge retention time（ about 17. 1%）,energy uncoupling and other reasons（ around 12. 2%）. The bypass treatment had no significant effect on the effluent water quality and microbial activities. The bypass process decreased the microbial activities,while had little effect on those within the biological wastewater treatment reactor. For clarifying the sludge reduction mechanism,the contribution of hydrolysis and acidification and also the effect of sludge retention time should be integrated considered.
出处
《环境工程》
CAS
CSCD
北大核心
2016年第6期28-31,35,共5页
Environmental Engineering
基金
国家水体污染控制与治理科技重大专项(2011ZX07317-001)
昆明市科技计划项目(2014-04-A-S-01-3065)
关键词
旁路水解酸化
污泥减量
脱氮除磷
硝化活性
反硝化活性
bypass hydrolysis acidification
sludge reduction
nitrogen and phosphorus removal
nitrifying activity
denitrifying activity
