Study on the treatment of phenol-containing wastewater with modified fly ash

doi:10.11894/1005-829x.2011.31(10).57

INDUSTRIAL WATER TREATMENT ›› 2011, Vol. 31 ›› Issue (10): 57-60. doi: 10.11894/1005-829x.2011.31(10).57

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Study on the treatment of phenol-containing wastewater with modified fly ash

Wu Changnian, Tang Lihua, Ling Qi

Experimental Center of Water Pollution Control and Wastewater Resource,Anhui University of Architecture,Hefei 230022,China

Received:2011-07-02 Online:2011-10-20 Published:2011-10-25

改性粉煤灰处理模拟含酚废水的实验研究

伍昌年, 汤利华, 凌琪

安徽建筑工业学院水污染控制与废水资源化实验中心,安徽合肥230022

作者简介:伍昌年(1973- )，博士，讲师。E-mail：wucn@aiai.edu.cn。
基金资助:
国家水体污染控制与治理科技重大专项(2008ZX07316-002)；安徽高校省级自然科学研究重点项目(KJ2010A067)

Abstract

Abstract:

The phenol removal from phenol-containing wastewater by modified fly ash has been studied. The effects of pH，adsorption time，dosage，adsorption temperature and the initial concentration of phenol in the water sample on the phenol removal efficiency by fly ash are investigated. The experiments show that when 15 g/L of fly ash modified by alkali is used for treating 30.0 mg/L of simulated phenol-containing wastewater，its adsorption time is 30 min， and pH between 6-7，the phenol removal rate can reach 98%. The fitting result of adsorption isotherm line show that the adsorption process conforms to Freundlich formula. The modified fly ash can be used as an adsorbent for phenol removal from wastewater.

Key words: fly ash, modification, phenol, adsorption

摘要：

通过对粉煤灰进行改性，研究其对模拟含酚废水中苯酚去除效果。探讨了pH、吸附时间、投加量、吸附温度及水样中苯酚初始浓度对粉煤灰去除苯酚效果的影响。实验表明，选用碱改性的粉煤灰，投加15 g/L 处理苯酚质量浓度30.0 mg/L 的模拟含酚废水，当吸附时间为30 min，pH 为6~7 时，对苯酚去除率达98%，吸附等温线拟合结果表明，该吸附过程符合Freundlich 公式。改性粉煤灰可作为废水去除苯酚的吸附剂。

关键词: 粉煤灰, 改性, 苯酚, 吸附

CLC Number:

X703.1

Wu Changnian, Tang Lihua, Ling Qi. Study on the treatment of phenol-containing wastewater with modified fly ash[J]. INDUSTRIAL WATER TREATMENT, 2011, 31(10): 57-60.

伍昌年, 汤利华, 凌琪. 改性粉煤灰处理模拟含酚废水的实验研究[J]. 工业水处理, 2011, 31(10): 57-60.

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改性粉煤灰处理模拟含酚废水的实验研究

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