摘要
污水处理过程中产生的大量剩余污泥成为制约行业可持续发展的核心问题之一,全国污水厂年产污泥量已超过6000万吨(按含水率80%计),预计到2025年将突破8000万吨,现阶段污泥主要依赖填埋、焚烧和土地利用等方式进行处置,处理成本高、能耗大且环境负担重,这使污泥减量技术受到广泛关注。微生物原位减量作为一种依靠外源菌群强化系统代谢与群落结构调控的手段,可在不改变工艺流程的前提下降低污泥产量保障出水水质与系统稳定性,其具备较高的工程适应性与推广价值,研究聚焦于该技术在市政污水处理工艺中的应用潜力及其在寒冷地区的运行表现。
The large amount of surplus sludge generated during the sewage treatment process has become one of the core issues restricting the sustainable development of the industry.The annual sludge production of sewage plants in China has exceeded 60 million tons(calculated based on 80%moisture content),and it is expected to exceed 80 million tons by 2025.At present,sludge mainly relies on landfill,incineration,and land use for disposal,which has high treatment costs,high energy consumption,and heavy environmental burden,making sludge reduction technology widely concerned.Microbial in-situ reduction,as a means of enhancing system metabolism and community structure regulation through exogenous microbial communities,can reduce sludge production and ensure effluent quality and system stability without changing the process flow.It has high engineering adaptability and promotion value.Research focuses on the potential application of this technology in CAST process and its performance in cold regions.
作者
郑林静
杨胜明
Zheng Linjing;Yang Shengming(Dadi Environmental Governance Co.,Ltd.,Zhejiang,310000)
出处
《当代化工研究》
2025年第12期90-92,共3页
Modern Chemical Research
关键词
微生物原位减量
污泥控制
生物强化技术
低温强化
in-situ microbial reduction
sludge control
biological reinforcement technology
low temperature strengthening
