降低植物油厂废水处理过程中污泥产率的措施与应用  

Measures and applications for reducing sludge yield in wastewater treatment of vegetable oil processing plants

作　　者：江明超 刘海波[1] 李剑[1] 杨蕊竹 张宇 黄婉光 JIANG Mingchao;LIU Haibo;LI Jian;YANG Ruizhu;ZHANG Yu;HUANG Wanguang(School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China)

机构地区：[1]广西大学化学化工学院,南宁530004

出　　处：《中国油脂》2021年第6期141-145,共5页China Oils and Fats

摘　　要：植物油厂废水处理过程中污泥产生量大,降低废水处理过程中的污泥产率,不仅可以降低成本,还可以降低环保风险。结合实际应用经验,对植物油加工废水特征进行了分析,并结合废水处理工艺特点,对污泥产生的各个环节进行了分析。通过优选破乳剂收集废水中的可利用成分,降低加药量,采用合适的生化处理工艺,选择高效的污泥脱水处理设备等措施,可成功地将污泥产率控制在较低的水平,且可回收较多的废油皂。A large amount of sludge is produced in the wastewater treatment of vegetable oil processing plants,and reducing the sludge yield can not only reduce the cost,but also reduce the risk of environmental protection.Combined with practical application experience,the characteristics of wastewater produced in vegetable oil processing was analyzed,and the various aspects of sludge production were analyzed by describing the characteristics of wastewater treatment process.The sludge yield could be successfully controlled at a low level and more waste oils/soaps could be recovered by collecting the available components in the wastewater through using suitable demulsifier,reducing the dosing amount,adopting a suitable biochemical treatment process and selecting an efficient sludge dehydration equipment.

关 键 词：废水处理 污泥产率 油脂加工 污泥脱水 

分 类 号：X792[环境科学与工程—环境工程] X703