好氧颗粒污泥技术污染物去除策略应用进展

Application progress of pollutant removal strategy of aerobic granular sludge technology

总结了多种在低碳源条件下提高颗粒污泥脱氮除磷性能的策略,包括时间曝气策略、空间曝气策略、进水策略、构型优化策略和微生物调控策略,并阐述了好氧颗粒污泥脱氮除磷过程中的环境矛盾、聚糖菌的抑制、多种脱氮方式共存等问题的具体研究方案。总结认为应打破传统认知,从系统的非稳态角度思考如何提高好氧颗粒污泥的稳定性以及功能菌活性。提出了将SBR的一些“梯度”策略引入到连续流中以提高脱氮除磷性能和稳定性的应用前景。为实现主流好氧颗粒污泥工艺工程化应用提供科学借鉴。

A variety of strategies to improve the nitrogen and phosphorus removal performance of granular sludge under low carbon source conditions were summarized, including time aeration strategy, space aeration strategy, water inflow strategy, configuration optimization strategy and microbial regulation strategy.The specific research schemes of environmental contradictions, inhibition of glycans and coexistence of multiple nitrogen and phosphorus removal methods in the process of aerobic granular sludge nitrogen and phosphorus removal were described.The traditional cognition should be broken and how to improve the stability of AGS and the activity of functional bacteria should be considered from the perspective of system instability.The application prospect of introducing some “gradient” strategies of SBR into continuous flow to improve nitrogen and phosphorus removal performance and stability is proposed.It provides scientific reference for the engineering application of mainstream aerobic granular sludge process.