摘要
北方城市在冬季供暖期普遍存在供暖水直排入污水管道的问题。以北方某污水处理厂为例,探讨并分析冬季供暖水对污水处理厂进水水量水质及污染物削减效率的影响。结果表明:供暖水若以排入污水管道的方式解决,污水处理厂进水量在供暖期突增或以溢流等形式排河,进水浓度大幅下降。供暖水排入污水处理厂对COD削减率影响较小,但对氨氮削减率影响较大,当进水COD浓度较低时(100mg/L),制约脱氮的因素主要为碳源含量,而非C/N值。
There is a common problem that heating water is directly discharged into sewage pipes in northern cities during winter heating period.Taking a WWTP in North China as an example,the influence of heating water in winter on the inflow water quantity and quality,and on pollutant reduction efficiency of WWTP is discussed and analyzed.The results show that if the heating water is discharged into the sewage pipe,the inflow of WWTP will increase suddenly during the heating period or discharge into the river in the form of overflow,the influent concentration will decrease greatly.Heating water discharged into WWTP has little effect on COD reduction rate,but has great effect on ammonia nitrogen reduction rate.When the influent COD concentration is low(about 100 mg/L),the main factor restricting nitrogen removal is carbon source content,not C/N value.
作者
岳桢铻
李一平
唐春燕
程一鑫
蒲亚帅
朱雅
潘泓哲
于珊
YUE Zhenwu;LI Yiping;TANG Chunyan;CHENG Yixin;PU Yashuai;ZHU Ya;PAN Hongzhe;YU Shan(College of Environment,Hohai University,Nanjing 210098,China)
出处
《给水排水》
CSCD
北大核心
2021年第3期44-48,54,共6页
Water & Wastewater Engineering
基金
国家自然科学基金(52039003,51779072,51809102)。
关键词
污水处理厂
供暖期
供暖水
进出水水量水质
污染物削减率
Wastewater water treatment plant
Heating period
Heating water
Inflow and outflow water quantity and quality
Pollutant reduction rate
