某化工园区废水处理工程设计实例.pdf

化工环保
2014年第34卷第3期
ENVIRONMENTAL PROTECTION OF CHEMICAL INDUSTRY
?245?
某化工园区废水处理工程设计实例
许明'2,刘伟京,涂勇2,蔡伟民,蒋永伟2,吴伟2
(1.江苏省环境科学研究院,江苏南京210036;2.江苏省环境工程重点实验室,江苏南京210036;
3.江苏省环境工程咨中心,江苏南京210036;4.江苏常熟新材料产业园管委会,江苏常熟215522
摘要」采用“分质调节一混凝沉淀一厌氧水解一缺氧生物处理一好氧生物处理”工艺处理某化工园区以氟化工和精细化工废
水为主的工业废水。工程运行结果表明:废水经处理后,COD=35mgL,TN=5.2mgL,p(NH2-N)=3.1mg∥L,TP=0.15mg
L;COD,TN,NHx-N,TP的去除率分别为91.%,67.1%,70.5%,893%;出水达到DB32/T1072~-2007《太溯地区城镇污
水处理厂及重点工业行业主要水污染物排放限值》中的排放标准。工程设计规模1.0x10°md,程总投资约5000万元,直
接运行费用1.50元m2。每年减少COD,TN,NH1-N,TP的排放量分别约为13246,38.69,11.05,4.56t。该工程的实施明显
改善了区域水环境,为太溯流域污染的治理提供了技术支撑
关键词」化学工业园;化工废水处理;厌氧水解;脱氮;除磷
[中图分类号]TQ116.2[文献标志码]A[文章编号]1006~-1878(2014)03-0245-05
Project Design Example for Chemical Industry Park Wastewater Treatment
Xu Ming, Liu Weijing, Tu Yong, Cai Weimin, Jiang Yongwei, Wu wei
(1. Jiangsu Academy of Environmental Science, Nanjing Jiangsu 210036, China; 2. Jian su Key Laboratory of Environmental
Engineering, Nanjing Jiangsu 210036, China; 3. Jiangsu Environmental Engineering Consulting Center, Nanjing Jiangsu 210036
China; 4. Administrative Committee of Jiangsu Changshu Advanced Materials Industrial Park, Changshu Jiangsu 215522, China
Abstract: The industrial wastewater in a chemical industry park, mainly generated in fluorine chemical
and fine chemical processes, was treated by the process of separate adjustment-coagulative precipitation
anaerobic hydrolysis-anoxic biotreatment-aerobic biotreatment. The running results show that: The COD
TN, P(NH-N), TP of the effluent are 35, 5.2, 3.1, 0.15 mg/L with 91.1%, 67.1%0, 70.5%, 89.3% of
removal rates respectively; The effluent quality can meet the Taihu lake region discharge standards of DB
321072-2007. The designed capacity of the project is 1.0 10m/d, the investment is about 50 million
In, and the direct operation cost is 1.50 yuan/m. The annual discharge amounts of COD. TN. NH-N
TP are decreased by 1 324.6, 38.69, 11.05, 4.56 t respectively. The project has significantly improved the
regional water environment and provided a technical support to the pollution control of Taihu lake basin
Key words: chemical industry park; chemical wastewater treatment; anaerobic hydrolysis
denitrification; dephosphorylation
江苏省太湖流域工业经济较为发达,重污染值提高至COD≤80mg/L,p(NH-N)≤5mg/L,
行业比重大,污染物排放总量远超过环境的承载能TN≤15mgL,TP≤0.5mgL,这给化工废水的处
力?。目前,江苏省太湖流域有化工企业近5000理带来极大的挑战。为保证出水稳定达到该排放标
家,年排放化工废水140Mt。化工园区企业排放的
废水水质复杂,具有水质水量变化大、难降解
收稿日期]2013-11-08;[修订日期]2014-02~14。
有毒、盐度高、可生化性差等特点,属典型的有毒
作者简介】许明(1982-),男,江苏省连云港市人,博土士,工
程师,主要从事水污染控制工程方面的研究工作。电话025
有害难降解的工业废水3日。DB32/T1072-2007864133,电邮yexumingbai(@163.com。
《太湖地区城镇污水处理厂及重点工业行业主要
基金项目」国家水体污染控制与治理科技专项项目
水污染物排放限值》中将化工废水的排放指标限(20122X07101400);江苏省太湖か项目( TSZC-G203171)