环境工程学报2017，Vol.11Issue(7)：4036-4042,7.DOI:10.12030/j.cjee.201605245
利用OUR监测不同SRT下有机物去除与硝的分界点
Monitoring separation point between organic removal and nitrification under different SRT by OUR
摘要
Abstract
This study investigated separation processes and mechanisms of organic removal and nitrification,in order to clarify organic and ammonia degradation rules,provide technical support for improvement of activated sludge,and enable application of growing denitrification technologies.We also discuss the influence of different SRTs on the process and add OUR as a new indicator.Results suggest that organic removal and nitrification take place step by step under any SRT conditions,with organic removal occurring first,followed by nitrification.The smaller the SRT,the clearer the separation between the two processes.The organic critical inhibition concentrations for ammonia with SRTs of 10 d,17.5 d,and 35 d were 36 mg · L-1,72 mg · L-1,and 96 mg · L-1,respectively.DO and OUR can serve to characterize this process.However,as an indicator of activated sludge activity,OUR is more significant during the actual separation process.关键词
有机物去除/硝化/污泥龄/动力学/呼吸速率Key words
organic removal/nitrification/SRT/kinetics/OUR分类
资源环境引用本文复制引用
王皓,徐相龙,范海涛,宋新新,齐鲁,王洪臣..利用OUR监测不同SRT下有机物去除与硝的分界点[J].环境工程学报,2017,11(7):4036-4042,7.基金项目
国家水体污染控制与治理重大科技专项(2013ZX07315-001) （2013ZX07315-001）
