酸化-微电解-Fenton组合工艺处理PCB显影废水中有机物的研究  

Study on the Treatment of Organic Matter in PCB Developing Wastewater Using Acidification Microelectrolysis Fenton Combined Process

作　　者：程乾坤 李建如 方皓 李茜 石太宏[2] Cheng Qiankun;Li Jianru;Fang Hao;Li Xi;Shi Taihong(Guangdong Polytechnic of Environmental Protection Engineering,Guangzhou 510655,China;Sun Yat-sen University,Guangzhou 510029,China;Foshan Engineering Technology Research Center for Prevention and Control of Emerging Contaminants in Water,Foshan 528216,China)

机构地区：[1]广东环境保护工程职业学院,广东广州510655 [2]中山大学,广东广州510029 [3]佛山市水体新型环境污染物防治工程技术研究中心,广东佛山528216

出　　处：《皮革制作与环保科技》2024年第18期24-27,共4页Leather Manufacture and Environmental Technology

摘　　要：印制电路板(PCB)行业产生的显影废水是一种成分复杂、难以生化降解的高浓度有机废水。本文首先采用单因素实验确定酸化、铁碳微电解、Fenton氧化反应的最佳反应条件,其中酸化pH值为2;铁碳微电解条件:铁碳质量比取2,百毫升废水药剂投加量为3 g,pH值为2,反应时间为30 min;Fenton氧化条件:初始pH值为3,H_(2)O_(2)与Fe^(2+)的摩尔比为6,百毫升废水需加入H_(2)O_(2)0.6 m L,反应时间为90 min。其次,通过酸化-铁碳微电解-Fenton氧化组合工艺处理该废水,经组合工艺处理后,废水中的COD_(Cr)浓度从原来的5 320 mg/L降至432 mg/L左右,去除率达91%左右,为工厂废水预处理提供了依据。The developed wastewater produced in the production of printed circuit board(PCB)is a kind of wastewater with high organic matter content,complex composition and difficult to biochemical degradation.In this paper,the optimal reaction conditions were firstly obtained through single-factor experiments.The acidification reaction acidification pH=2.The conditions of iron-carbon micro-electrolysis:The iron-carbon mass ratio was 2,the dosage of the agent was 3 mg/100 mL,the reaction pH value was 2,and the reaction time was 30 minutes.Fenton oxidation reaction:The initial pH was 3,H_(2)O_(2)/Fe^(2+) was 6,the dosage of H_(2)O_(2) was 0.6 mL/100 mL,the reaction time was 90 minutes.Secondly,the wastewater was treated by acidifying-Iron-carbon micro-electrolysis-Fenton oxidation combined process,after the combined process,The COD_(Cr) concentration in wastewater was reduced from 5320 mg/L to 432 mg/L,the removal rate reached about 91%,provided a basis for the pretreatment of wastewater in the factory.

关 键 词：酸化 铁碳微电解 FENTON氧化 显影废水 

分 类 号：TS5[轻工技术与工程—皮革化学与工程]