利用气化渣制备多孔材料及其在含酚半焦废水处理中的应用  

Preparation of porous material with coal gasification slag and its application in treatment of phenol-containing semi-coke wastewater

作　　者：郭磊 杨永林 王还喜 王亚俐 许云华 Guo Lei;Yang Yonglin;Wang Huanxi;Wang Yali;Xu Yunhua(Yulin College,Yulin Shaanxi 719000,China;Shenmu Vocational&Technical College,Shenmu Shaanxi 719300,China)

机构地区：[1]榆林学院,陕西榆林719000 [2]神木职业技术学院,陕西神木719300

出　　处：《煤化工》2022年第5期56-60,共5页Coal Chemical Industry

基　　金：陕西省教育厅重点科学研究计划(22JS047);陕西省重点研发计划(2021SF-449);榆林市科技局榆林市工业水处理工程技术研究中心建设项目(CXY-2020-005);神木职业技术学院校级课题(2021ZK03)。

摘　　要：开发了一种以煤气化渣(CGS)为原料,通过酸碱浸泡及活化处理,制备多孔材料NGS的工艺,并研究了NGS对含酚废水的处理效果。经检测,NGS材料具有丰富的孔结构,比表面积达到568 m^(2)/g,孔容达到0.507 cm^(3)/g;NGS材料对苯酚溶液的最佳吸附条件为:溶液体积和吸附剂质量比为100 mL∶3 g、温度为30℃、pH为7、充分反应30 min,在该条件下,苯酚溶液质量浓度从1000 mg/L降至38 mg/L。将NGS材料应用于半焦废水处理,其对挥发酚的单位吸附量达到20.7 mg/g,且在120℃条件下加热再生3 h、循环使用5次后,仍保持较好的吸附能力。A process of NGS porous material preparation using coal gasification slag(CGS)as raw material and through acid-base soaking and activation treatment was developed,and the treatment effect of NGS on phenol-containing wastewater was studied.The test showed that the NGS material had a rich pore structure,the specific surface area reached 568 m^(2)/g,and the pore volume reached 0.507 cm^(3)/g;the optimal adsorption conditions of the NGS material for the phenol solution were:the ratio of solution volume and adsorbent mass was 100 m L∶3 g,the temperature was 30℃,pH was 7,and full reaction was 30 min.Under these conditions,the mass concentration of phenol solution decreased from 1000 mg/L to 38 mg/L.When the NGS material was applied to semi-coke wastewater treatment,its one-time adsorption capacity for volatile phenol reached 20.7 mg/g,and at 120℃,it was heated and regenerated for 3 h,and after being recycled for 5 times,it still maintained a good adsorption capacity.

关 键 词：多孔材料 煤气化渣(CGS) 半焦废水 含酚废水 吸附 

分 类 号：X784[环境科学与工程—环境工程]