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燃料灰吸附-再生处理氮杂环化合物废水的性能研究

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Indexed by:期刊论文

Date of Publication:2014-02-22

Journal:环境工程

Included Journals:PKU、ISTIC、CSCD

Volume:32

Issue:2

Page Number:41-44,50

ISSN No.:1000-8942

Key Words:粉煤灰;燃油灰;吸附;再生;Fenton

Abstract:采用燃料灰吸附和Fenton氧化再生处理组合工艺对典型氮杂环化合物(吲哚、吡啶和喹啉)废水的处理性能进行了研究.从其吸附动力学及热力学等指标对两种燃料灰的处理效果进行了比较.其中,粉煤灰(FYA)和燃油灰(FLA)对3种化合物的吸附均可较好地拟合于一级动力学模型和Freundlieh模型,其线性相关度均在0.99以上.FLA吸附速率优于FYA,吸附效果也优于FLA.以燃料灰吸附吲哚废水为例,在5 min时,FYA和FLA的吸附量已经分别达到0.3869,1.12325 mg/g.在最优再生条件下进行连续循环吸附-再生过程,从整体上看,再生率随再生次数增加而下降.

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