ZHANGYu-ting,SHANGWei,KHUSoon-thiam,et al.Occurrence, Bioavailability and Enhanced Removal of Organic Phosphorus in Municipal Wastewater Treatment Plant[J].China Water & Wastewater,2023,39(4):12-17.
污水厂中有机磷的赋存形态、生物有效性及强化去除
- Title:
- Occurrence, Bioavailability and Enhanced Removal of Organic Phosphorus in Municipal Wastewater Treatment Plant
- 摘要:
- 现阶段以生物与化学协同为主的除磷技术，使出水总磷中磷酸盐含量较低，但大部分溶解性有机磷（Dissolved organic phosphorus，DOP）难以得到有效去除，出水DOP残留量占总磷的52%～93.1%。有机磷不但能够为藻类提供磷源，而且在常规污水处理系统中难以完全去除，这给再生水处理技术提出了新的挑战。以揭示DOP潜在风险、强化DOP深度去除为目标，综合阐述了污水处理厂中DOP的赋存形态及生物有效性，为科学认识DOP的环境效应提供理论依据；通过介绍深度处理过程中DOP强化去除研究进展，可为今后城市污水处理厂提标改造和实现出水总磷超低量排放提供思路和方法。
- Abstract:
- Phosphate in the effluents can be nearly eliminated by the combination of biological and chemical technology at present. However, the dissolved organic phosphorus (DOP) is hard to be removed as well as the residual DOP accounted for 52%-93.1% of the total phosphorus in the effluent. DOP not only provide phosphorus resource for algae but also hard to be removed by regular sewage treatment process, which will propose new challenges to reclaimed water treatment technology. To reveal the potential risk of DOP and promote the advanced removal of DOP, the occurrence and bioavailability of DOP in municipal wastewater treatment plant were comprehensively introduced in this paper, which provided theoretical basis for the scientific understanding of environmental effects of DOP. In addition, the research of enhanced DOP removal methods in the advanced treatment was also introduced to provide the idea and methods for upgrading and reconstruction of municipal wastewater treatment plants, as well as for the extremely low phosphorus discharge.
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