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摘要
利用三维电解-生化法组合工艺协同降解4-氯酚废水。自制催化极板(Ti/Ru-Ir-SnO2)并进行电化学表征。通过电解预处理实验考察了电极板、电解体系、三维粒子加量、电压、电解质浓度对4-氯酚去除效果的影响。通过生化法后续处理实验考察了经过0、10、20、30 min电解预处理的4-氯酚溶液对生化处理效果的影响。结果表明,电解30 min废水的可生化性大大提高,然后利用好氧活性污泥法继续降解10 h后,去除率达到90.05%。
Abstract
An experimental study is carried out by using three-dimensional electrolysis-biochemical method to degrade 4-chlorophenol containing wastewater.Catalytic plate (Ti/Ru-Ir-SnO2) is made and its electrochemical properties are characterized.The effects of some parameters,such as electrode plate,electrolysis system,three-dimensional particle dosage,voltage and electrolyte concentration are investigated through electrolysis pretreatment process.The effect of the 4-chlorophenol solutions that are pre-treated for different electrolysis time (0 min,10 min,20 min and 30 min) on the biochemical treatment efficiency is investigated.The 4-chlorophenol containing wastewater that has been electrolyzed for 30 minutes exhibits a better biodegradability,reaching a removal rate of 90.05% after degrading for 10 h by aerobic activated sludge method.
关键词
4-氯酚
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好氧活性污泥法
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三维电解
Key words
4-chlorophenol
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aerobic activated sludge process
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three-dimensional electrolysis
Author summay
宋洋(1992-),男,硕士研究生,研究方向为水污染处理,17853246032@163.com
三维电解-生化法对4-氯酚废水的去除试验研究[J].
现代化工, 2019, 39(8): 180-184 DOI:10.16606/j.cnki.issn0253-4320.2019.08.038