首页|酸化-微电解-Fenton组合工艺处理PCB显影废水中有机物的研究

酸化-微电解-Fenton组合工艺处理PCB显影废水中有机物的研究

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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,H2O2 与Fe2+的摩尔比为 6,百毫升废水需加入H2O2 0.6 mL,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CODCr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.
Study on the Treatment of Organic Matter in PCB Developing Wastewater Using Acidification Microelectrolysis Fenton Combined Process
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,H2O2/Fe2+was 6,the dosage of H2O2 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 CODCr concentration in wastewater was reduced from 5 320 mg/L to 432 mg/L,the removal rate reached about 91%,provided a basis for the pretreatment of wastewater in the factory.

acidificationiron-carbon micro-electrolysisFenton oxidationdeveloping wastewater

程乾坤、李建如、方皓、李茜、石太宏

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广东环境保护工程职业学院,广东 广州 510655

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

中山大学,广东 广州 510029

酸化 铁碳微电解 Fenton氧化 显影废水

2024

皮革制作与环保科技

皮革制作与环保科技

ISSN:
年,卷(期):2024.5(18)