岷沱江标准下AAO+DNBF与Phoredox工艺TN达标应用对比OACSTPCD
Comparison between AAO+DNBF and Phoredox Process for TN Compliance Application under Minjiang and Tuojiang River Standard
岷沱江标准下较多污水厂提标和新扩建采用了三级反硝化生物滤池(DNBF)工艺,DNBF具有极限脱氮(TN质量浓度≤3 mg/L)的优势,但也存在活性污泥、SS等导致的滤料板结及生物堵塞等常见问题.而二级生化Phoredox工艺投加碳源可以实现深度脱氮NO3--N＜2 mg/L,其充分挖掘了二级生物处理段的脱氮能力,简化了脱氮工艺流程,但国内工程案例较少.以四川某污水处理厂为例,对AAO+DNBF与Phoredox两种工艺脱氮效果进行了对比,并结合工…查看全部>>
More wastewater treatment plants(WWTP)upgrading and new expansion of three-stage denitrification biological filter(DNBF)process under the standard of Minjiang and Tuojiang River.DNBF has the limit of nitrogen removal TN≤3 mg/L advantage,but there are activated sludge,SS,etc.caused by the filter media slate and biological clogging and other common problems.The secondary biochemical Phoredox process can achieve deep denitrification NO3--N＜2 mg/L by adding carb…查看全部>>
贾建青;强微波;黄鹤
中国市政工程中南设计研究总院有限公司,湖北武汉 430010中国市政工程中南设计研究总院有限公司,湖北武汉 430010中国市政工程中南设计研究总院有限公司,湖北武汉 430010
土木建筑
Phoredox工艺AAODNBF预曝气生物滤池碳源
Phoredox processAAODNBFpre-aeration biofiltercarbon source
《净水技术》 2024 (7)
126-133,8
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