影响污水生物脱氮能力的关键水质参数及空间分布特征研究  

Study on the key wastewater quality parameters influencing wastewater biological denitrification ability and their spatial distribution characteristics

作　　者：韦启信[1] 郑兴灿[1,2] 

机构地区：[1]河海大学,南京210098 [2]国家城市给水排水工程技术研究中心,天津300074

出　　处：《给水排水》2013年第9期127-131,共5页Water & Wastewater Engineering

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07313001)

摘　　要：基于住建部城镇污水处理数据管理系统的水质数据，选定影响污水生物脱氮能力的关键水质参数BOD5／TN和SS／BOD5，分析城镇污水处理厂进水水质参数的空间分布特征及参数值，结果表明：我国70％城镇污水处理厂进水BOD5／TN低于4，59％城镇污水处理厂进水SS／BOI）5高于1．2，南部城市较北部城市碳氮比低，悬浮固体比例高，北京、上海、广州20万m3／d污水处理厂进水SS／BOD5维持在1．1～1．2的正常值。我国城镇污水碳氮比（BOD5／TN）偏低、进水悬浮固体无机组分含量偏高（SS／BOD5）的状况普遍存在，构成我国城镇污水的特有水质特性，在城市建设及污水管网尚不完善的区域，这种状况还会继续存在较长的时间，需要加以关注和解决。Based on data from Ministry of Housing and Urban-Rural Development of P. R. C da- ta management system for wastewater treatment, choosing BOD5/TN and SS/BOD5 as key parame- ters, spatial distribution characteristics of urban sewage treatment plant influents were analyzed. Statistical analysis showed that： There was 70% of urban sewage treatment plant influent BOD5/ TN less than 4,and 59% of urban sewage treatment plant influents SS/BOD5 above 1.2. Carbon- nitrogen ratio was lower and the proportion of inorganic components in suspended solids were big- ger in southern city than northern city. Urban sewage treatment plant above 200 thousand m3/d had influents SS/BOD5 maintained at normal about 1.1 to 1.2 in Beijing, Shanghai, Guangzhou. Ma jority of urban sewage treatment plant influents with low carbon-nitrogen ratio and big proportion of inor ganic components in suspended solids in China, which would exist for a long time because of imperfect of urban construction and sewage pipe network, should be seriously concerned and properly solved.

关 键 词：城镇污水 生物脱氮 碳氮比 悬浮固体无机组分含量 空间分布 

分 类 号：X505[环境科学与工程—环境工程]