摘要
为探究预氧化对排泥水处理的影响,确定最佳排泥水处理工艺,文中针对水厂合建式收集的排泥水,开展了自然沉降、混凝沉淀、预氧化-混凝沉淀这3种工艺的对比试验。试验结果表明,在采用O_(3)或NaClO预氧化后,工艺对排泥水处理效率大幅度提高。当O_(3)投加量为3 mg/L或NaClO投加量为2.5 mg/L时,控制聚合氯化铝(PAC)投加量为30 mg/L,预氧化-混凝沉淀工艺出水浑浊度可降至不高于3 NTU,COD_(Mn)不高于2.5 mg/L,且铁、锰、微生物等指标均优于回用标准,证明工艺可满足排泥水处理要求。
In order to explore the influence of preoxidation on sludge wastewater treatment and determine the best sludge wastewater treatment technology,a comparative experiment of three processes including natural sedimentation,coagulation sedimentation,and preoxidation-coagulation sedimentation were carried out for the co-built sludge wastewater treatment of WTP.Experimental results showed that after preoxidation with O_(3) or NaClO,process had greatly improved the treatment efficiency of sludge wastewater.When the dosage of O_(3) was 3 mg/L,or the dosage of NaClO was 2.5 mg/L,the dosage of polyaluminum chloride(PAC)was controlled to 30 mg/L,the effluent turbidity of preoxidation-coagulation sedimentation process can be reduced to less than 3 NTU,COD_(Mn) was no more than 2.5 mg/L,and the indices of iron,manganese and microorganisms were better than reuse standard,which proved that process can meet the requirements of sludge wastewater treatment.
作者
罗勇
彭锦玉
刘伟刚
张欢
孙文祥
LUO Yong;PENG Jinyu;LIU Weigang;ZHANG Huan;SUN Wenxiang(Feicheng Water Affairs Group Co.,Ltd.,Tai’an 271600,China;China Urban Construction Design&Research Institute Co.,Ltd.,Beijing 100120,China;Water Supply Branch of Sinopec Shengli Petroleum Administration Co.,Ltd.,Dongying 257029,China)
出处
《净水技术》
CAS
2022年第1期173-179,共7页
Water Purification Technology
作者简介
罗勇(1970-),男,高级工程师,研究方向为城乡供水水质提升及工业供水,E-mail:fcly3076@126.com;通信作者:彭锦玉(1988-),男,博士,研究方向为常规给水工艺优化及排泥水处理,E-mail:pjy876@163.com。
