摘要
生物脱氮除磷工艺在城镇污水处理过程中发挥了重要作用,随着排放标准的提升,现有常用工艺出水无法满足排放标准的要求。分析了生物脱氮除磷的机理,比较了不同处理工艺,解析了城镇污水进水碳源不足、不同菌属微生物相互竞争、生物活性影响、污泥膨胀和生物泡沫等生物脱氮除磷工艺存在的问题,提出调整工艺运行条件、改造工艺结构、补充碳源、投加填料、添加化学除磷药剂和使用生物选择器等生物脱氮除磷调控措施。
The biological nitrogen and phosphorus removal process plays an important role in the municipal wastewater treatment. With the increase of emission standards,the process effluent cannot meet the emission requirements.The mechanism of biological nitrogen and phosphorus removal was analyzed,and the different treatment processes were compared. The problems of insufficient carbon source in municipal wastewater influent,competition among different microorganisms,biological activity impact,sludge expansion and biological foam in the biological nitrogen and phosphorus removal process were analyzed. The measures for biological nitrogen and phosphorus removal such as adjusting process operating conditions,reforming process structure,supplementing carbon source,adding filler,adding chemical dephosphorization agents and using bioselectors were proposed.
作者
蒙小俊
王秋利
龚晓松
Meng Xiaojun;Wang Qiuli;Gong Xiaosong(School of Tourism and Environment,Ankang University,Ankang 725000,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2020年第8期17-22,共6页
Industrial Water Treatment
基金
安康学院高层次人才科研专项经费(2016AYQDZR09)。
关键词
城镇污水
脱氮除磷
处理工艺
调控
municipal wastewater
nitrogen and phosphorus removal
treatment process
control
