方形活性焦吸附池在污水处理厂的应用研究  

Study on the Application of Square Activated Coke Adsorption Tank in Sewage Treatment Plants

作　　者：张艳 王志辉 赵品 徐鹏飞 易海明 马园园 杜国伟 王荣红 ZHANG Yan;WANG Zhihui;ZHAO Pin;XU Pengfei;YI Haiming;MA Yuanyuan;DU Guowei;WANG Ronghong(Zhengzhou Sewage Purifying Co.,Ltd.,Zhengzhou 450044,China)

机构地区：[1]郑州市污水净化有限公司,郑州450044

出　　处：《中国资源综合利用》2024年第10期268-274,共7页China Resources Comprehensive Utilization

摘　　要：活性焦凭借强大的吸附能力,广泛应用于污水处理领域。试验成功搭建方形吸附池中试装置(连续运行231 d),采用扫描电子显微镜、比表面积和微孔分析仪分析活性焦的表面结构、孔径和孔容,并研究活性焦对城市污水处理厂出水的深度净化效果。试验结果表明,固定床滤池活性焦吸附后,出水化学需氧量(Chemical Oxygen Demand,COD)的浓度基本小于13 mg/L,部分时段小于10 mg/L;出水色度基本小于8度,部分时段小于5度;活性焦对总氮(Total Nitrogen,TN)和总磷(Total Phosphorus,TP)的吸附在1个月内就达到饱和;出水水质执行《贾鲁河流域水污染物排放标准》(DB 41/908—2014),其中指标COD、TN均优于《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准,基本满足《地表水环境质量标准》(GB 3838—2002)的Ⅲ类水质要求。Activated coke is widely used in the field of wastewater treatment due to its strong adsorption capacity.In this experiment,a square adsorption tank pilot plant is successfully constructed(231 d of continuous operation),scanning electron microscopy,specific surface area,and microporous analyzer are used to analyze the surface structure,pore size,and pore volume of activated coke,and the deep purification effect of activated coke on urban sewage treatment plant effluent is studied.The experimental results show that after the adsorption of activated coke in the fixed bed filter,the concentration of Chemical Oxygen Demand(COD)in the effluent is basically less than 13 mg/L,and in some periods it is less than 10 mg/L;the chromaticity of the effluent is generally less than 8 degrees,and in some periods it is less than 5 degrees;the adsorption of Total Nitrogen(TN)and Total Phosphorus(TP)by activated coke reaches saturation within one month;the effluent quality complies with the Discharge Standards for Water Pollutants in the Jialu River Basin(DB 41/908—2014),with indicators COD and TN both exceeding the Class A standard of the Pollutant Discharge Standards for Urban Sewage Treatment Plants(GB 18918—2002),and basically meeting the ClassⅢwater quality requirements of the Environmental Quality Standards for Surface Water(GB 3838—2002).

关 键 词：污水处理 活性焦 吸附 深度处理 地表水 Ⅲ类水质 

分 类 号：X703[环境科学与工程—环境工程]