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一体化氧化沟生物除磷是在氧化沟前加一只厌氧生物选择器，进行磷的厌氧释放，在后续好氧阶段进行磷的过量吸收，最后污水中的磷以排除剩余污泥的方式排出系统。试验的目的是确定生物选择器的最佳设计参数，试验指出处理城市污水厌氧选择器的最佳运行条件是ＨＲＴ 为８０ｍｉｎ ，ＭＬＳＳ为１ ５００ｍｇ／Ｌ。
Integrated Oxidation Ditch biological phosphorus removal is an anaerobic biological selector in front of the oxidation ditch for anaerobic release of phosphorus, excessive phosphorus uptake in the subsequent aerobic phase, and finally phosphorous in the wastewater to exclude excess sludge Way out of the system. The objective of the experiment was to determine the optimal design parameters of the bio-selector. The experiment indicated that the optimum operating conditions for treating municipal wastewater anaerobic selector were HRT of 80 min and MLSS of 1 500 mg / L.