Fenton氧化对剩余污泥溶胞减量的影响  

Influence on dissolution reduction of excess sludge lysis by Fenton oxidation

作　　者：罗庆 张媛 王小雄 韦清华 李常青 王树勖 文善雄 牛进龙 LUO Qing;ZHANG Yuan;WANG Xiao-xiong;WEI Qing-hua;LI Chang-qing;WANG Shu-xu;WEN Shan-xiong;NIU Jin-long(Lanzhou Petrochemical Research Center,Petrochemical Research Institute,PetroChina,Lanzhou 730060,China)

机构地区：[1]中国石油石油化工研究院兰州化工研究中心,甘肃兰州730060

出　　处：《石化技术与应用》2022年第2期94-97,共4页Petrochemical Technology & Application

基　　金：中国石油天然气股份有限公司科技管理部资助项目(项目编号:2019 D-4622)。

摘　　要：采用Fenton氧化进行污泥溶胞减量,以溶解性化学需氧量(SCOD)和剩余污泥质量浓度(TSS)作为评价指标,考察了H_(2)O_(2)投加量、Fe^(2+)投加量、pH值、反应温度、反应时间对剩余污泥有机物溶出及剩余污泥减量的影响。结果表明:Fenton氧化破解剩余污泥的最佳条件为pH值3,H_(2)O_(2)投加量50 mL/L,Fe^(2+)投加量0.8 g/L,反应温度50℃,反应时间90 min;在此优化条件下,SCOD、水质总氮、水质总磷依次由初始的49,8,0.21 mg/L增加至972,98,4.58 mg/L,污泥粒径(D 50)由初始的28.45μm降低至14.61μm,TSS减量率达到37.83%。The effects of H_(2)O_(2) dosage,Fe^(2+) dosage,pH value,reaction temperature and time on organic matter dissolution and sludge decrement of excess sludge were researched by utilizing Fenton oxidation to reduce sludge lysis with dissolved chemical oxygen demand(SCOD)and sludge mass concentration(TSS)as evaluation indicators.The results showed that the optimal conditions for cracking excess sludge by Fenton oxidation were pH value 3,H_(2)O_(2) dosage 50 mL/L,Fe^(2+) dosage 0.8 g/L,reaction temperature 50℃,reaction time 90 min.Under the optimal conditions,the SCOD,total nitrogen(TN)and total phosphorus(TP)had increased from the initial 49,8,0.21 mg/L to 972,98,4.58 mg/L respectively;the sludge particle size(D 50)had decreased from the initial 28.45μm to 14.61μm,and the sludge reduction rate of TSS had reached 37.83%.

关 键 词：FENTON氧化 污泥溶胞减量 溶解性化学需氧量 污泥质量浓度 总氮 总磷 

分 类 号：TE992.2[石油与天然气工程—石油机械设备]