除盐水再生废水回用促进PTA废水厌氧污泥颗粒化工业实践  

REUSE OF RECLAIMED WASTEWATER FROM DESALTED WATER PROMOTING ANAEROBIC SLUDGE GRANULATION OF PTA WASTEWATER

作　　者：王胜军 戴楚湘 蒋林坪 Wang Shengjun;Dai Chuxiang;Jiang Linping(Fujian Fuhaichuang Petrochemical Co.,Ltd.,Zhangzhou,Fujian 363216)

机构地区：[1]福建福海创石油化工有限公司,福建漳州363216

出　　处：《石油炼制与化工》2024年第3期132-137,共6页Petroleum Processing and Petrochemicals

摘　　要：福建福海创石油化工有限公司将含有高浓度无机盐的除盐水再生废水引至精对苯二甲酸(PTA)厂区废水处理装置,把高浓度的无机盐均匀稀释,补充至PTA废水上流式厌氧污泥床(UASB)厌氧反应器,作为厌氧微生物微量元素营养剂添加。装置运行4个月后,颗粒污泥占厌氧污泥总量的60%以上,厌氧反应器化学需氧量(COD)降低率提升5百分点以上,说明除盐水再生废水对厌氧污泥颗粒化有明显促进作用。Fujian Fuhaichuang Petrochemical Co.,Ltd.,consists of three main factories,including an aromatic plant for production of PX,a PTA production plant and a self-distributed thermal power plant for heating and electricity generation.A large amount of desalted water is required in the production of these three plants,thus a considerable amount of regenerated wastewater with high concentration of inorganic salts is produced.The regenerated wastewater containing high concentration of inorganic salts for desalination was diverted to PTA wastewater treatment unit,uniformly diluted and added to PTA wastewater UASB(up-flow anaerobic sludge bed)anaerobic reactor as an anaerobic microbe micronutrient.After four months of operation,the granular sludge accounted for more than 60%of the total anaerobic sludge,and the COD removal rate of the anaerobic reactor increased by more than 5 pencentage points,indicating that the regenerated wastewater had a significant role in promoting the granulation of anaerobic sludge.

关 键 词：精对苯二甲酸 废水 上流式厌氧污泥床 无机盐 颗粒化 

分 类 号：X703[环境科学与工程—环境工程]