Abstract:

Aiming at the limitation in phosphorus removal by using DAT一IAT process，the up an anaerobic reactor in front of DAT一IAT enhances the phosphorus removal efficiency. It is the first time that the study adopts the process to treat phosphorus-containing wastewater, reviewing its effect of the following factors，such as sludge recirculation ratio，operation period，pH value，influent COD concentration and temperature on phosphorus removal. At the end，the reaction conditions are confirmed.

Key words: anaerobic/demand aeration tank一intermittent aeration tank process, phosphorus removal, anaerobic reactor

摘要：

针对DAT-IAT工艺在除磷方面存在的局限性,采用在工艺前端设置厌氧反应器的措施来强化DAT-IAT工艺的除磷功能。首次采用该工艺处理含磷废水,考察了回流比、运行周期、pH值、进水COD浓度和温度等因素对磷去除效果的影响,确定了适宜的反应条件。

关键词: 前置厌氧/连续进水、连续-间歇曝气工艺, 除磷, 厌氧反应器

CLC Number: 

• X703