DOL:10.13374/.issn1001-053x.2012.09.001 第34卷第9期 北京科技大学学报 Vol.34 No.9 2012年9月 Journal of University of Science and Technology Beijing Sep.2012 煅烧温度对硅藻土净化焦化废水效能的影响 谷启源”吴根)区宋存义” 李国亭》 赵伟高》 1)北京科技大学土木与环境工程学院，北京1000832)科技部基础研究中心，北京100862 3)华北水利水电学院环境与市政工程学院，郑州450011 区通信作者，E-mail:wugen0991@gmail.com 摘要选用临江硅藻土和张家口硅藻土进行焦化废水的吸附净化，作为焦化废水预处理和后处理的手段.考察了不同温度 煅烧对硅藻土自身性质和对焦化废水净化效能的影响，探讨了硅藻土作为焦化废水净化手段的可行性.能谱分析表明原始张 家口硅藻土中有机质含量偏高.煅烧前后两种硅藻土的形貌、晶型并未发生明显变化：煅烧后两种硅藻土中碳含量有所减少. 无论煅烧与否，临江硅藻土在254m和269nm处色度去除方面都明显优于张家口硅藻土.500℃煅烧的临江硅藻土对化学需 氧量的去除率达到61.8%，而张家口硅藻土仅达到30.3%：500℃煅烧的临江硅藻土对氨氮的去除率达到50.4%.实验结果 证明硅藻土可以作为焦化废水的预处理和后处理手段 关键词硅藻土：煅烧：焦化废水：吸附：废水处理 分类号X703.5 Influence of diatomite calcination temperature on the purification of coking wastewater GU Qi-yuan',WU Gen》s,SONG Cun-yi”,lGuo-+ing》,ZHA0 Wei-gao》 1)School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China 2)Basic Research Service,Ministry of Science and Technology of the People's Republic of China,Beijing 100862,China 3)Department of Environmental and Municipal Engineering,North China University of Water Conservancy and Electric Power,Zhengzhou 450011, China Corresponding author,E-mail:wugen0991@gmail.com ABSTRACT As pretreatment or post-treatment for coking wastewater,two kinds of diatomites from Linjiang and Zhangjiakou in Chi- na were selected for the adsorption and purification of coking wastewater.The influences of diatomite calcination temperature on their properties and purification performance were studied during coking wastewater treatment.The feasibility of using the diatomite as a sor- bent in coking wastewater treatment was also discussed.Energy dispersive spectroscopy results indicate that raw Zhangjiakou diatomite shows a higher organic content.The morphologies and crystal structures of both the diatomites do not significantly change before and af- ter calcination.A decrease in carbon content was observed for both the diatomites after calcination.As to the color removal at 254 and 269 nm,Linjiang diatomite is particularly superior to Zhangjiakou diatomite whether the diatomites are calcined or not.For example, after calcination at 500 C,the removal of chemical oxygen demand achieves to 61.8%for Linjiang diatomite while it only reaches 30.3%for Zhangjiakou diatomite.In addition,the removal of ammonia nitrogen can achieve to 50.4%for Linjiang diatomite after the calcination.It is concluded that the diatomite involved can be used for the pretreatment and post-treatment of coking wastewater. KEY WORDS diatomite;calcination:coking wastewater:adsorption:wastewater treatment 焦化废水是煤在高温干馏过程中以及煤气净 分复杂，污染物浓度高、色度高及毒性大.有机污染 化、化学产品精制过程中形成的废水，其中含有酚、 物以酚类化合物为主，约占50%，另外还包括多环 氨氮、氰、苯、吡啶、吲哚和喹啉等几十种污染物，成芳香族化合物和含氮、氧和硫的杂环化合物及脂肪 收稿日期：201107-10 基金项目：城市水资源与水环境国家重点实验室开放基金资助项目(QAK201010)：华北水利水电学院大学生创新性实验项目(201217)第 34 卷 第 9 期 2012 年 9 月 北京科技大学学报 Journal of University of Science and Technology Beijing Vol． 34 No． 9 Sep． 2012 煅烧温度对硅藻土净化焦化废水效能的影响 谷启源1) 吴 根2) 宋存义1) 李国亭3) 赵伟高3) 1) 北京科技大学土木与环境工程学院，北京 100083 2) 科技部基础研究中心，北京 100862 3) 华北水利水电学院环境与市政工程学院，郑州 450011 通信作者，E-mail: wugen0991@ gmail． com 摘 要 选用临江硅藻土和张家口硅藻土进行焦化废水的吸附净化，作为焦化废水预处理和后处理的手段． 考察了不同温度 煅烧对硅藻土自身性质和对焦化废水净化效能的影响，探讨了硅藻土作为焦化废水净化手段的可行性． 能谱分析表明原始张 家口硅藻土中有机质含量偏高． 煅烧前后两种硅藻土的形貌、晶型并未发生明显变化; 煅烧后两种硅藻土中碳含量有所减少． 无论煅烧与否，临江硅藻土在 254 nm 和 269 nm 处色度去除方面都明显优于张家口硅藻土． 500 ℃煅烧的临江硅藻土对化学需 氧量的去除率达到 61. 8% ，而张家口硅藻土仅达到 30. 3% ; 500 ℃煅烧的临江硅藻土对氨氮的去除率达到 50. 4% ． 实验结果 证明硅藻土可以作为焦化废水的预处理和后处理手段． 关键词 硅藻土; 煅烧; 焦化废水; 吸附; 废水处理 分类号 X703. 5 Influence of diatomite calcination temperature on the purification of coking wastewater GU Qi-yuan1) ，WU Gen2) ，SONG Cun-yi 1) ，LI Guo-ting3) ，ZHAO Wei-gao 3) 1) School of Civil and Environmental Engineering，University of Science and Technology Beijing，Beijing 100083，China 2) Basic Research Service，Ministry of Science and Technology of the People's Republic of China，Beijing 100862，China 3) Department of Environmental and Municipal Engineering，North China University of Water Conservancy and Electric Power，Zhengzhou 450011， China Corresponding author，E-mail: wugen0991@ gmail． com ABSTRACT As pretreatment or post-treatment for coking wastewater，two kinds of diatomites from Linjiang and Zhangjiakou in Chi￾na were selected for the adsorption and purification of coking wastewater． The influences of diatomite calcination temperature on their properties and purification performance were studied during coking wastewater treatment． The feasibility of using the diatomite as a sor￾bent in coking wastewater treatment was also discussed． Energy dispersive spectroscopy results indicate that raw Zhangjiakou diatomite shows a higher organic content． The morphologies and crystal structures of both the diatomites do not significantly change before and af￾ter calcination． A decrease in carbon content was observed for both the diatomites after calcination． As to the color removal at 254 and 269 nm，Linjiang diatomite is particularly superior to Zhangjiakou diatomite whether the diatomites are calcined or not． For example， after calcination at 500 ℃，the removal of chemical oxygen demand achieves to 61. 8% for Linjiang diatomite while it only reaches 30. 3% for Zhangjiakou diatomite． In addition，the removal of ammonia nitrogen can achieve to 50. 4% for Linjiang diatomite after the calcination． It is concluded that the diatomite involved can be used for the pretreatment and post-treatment of coking wastewater． KEY WORDS diatomite; calcination; coking wastewater; adsorption; wastewater treatment 收稿日期: 2011--07--10 基金项目: 城市水资源与水环境国家重点实验室开放基金资助项目( QAK201010) ; 华北水利水电学院大学生创新性实验项目( 201217) 焦化废水是煤在高温干馏过程中以及煤气净 化、化学产品精制过程中形成的废水，其中含有酚、 氨氮、氰、苯、吡啶、吲哚和喹啉等几十种污染物，成 分复杂，污染物浓度高、色度高及毒性大． 有机污染 物以酚类化合物为主，约占 50% ，另外还包括多环 芳香族化合物和含氮、氧和硫的杂环化合物及脂肪 DOI:10.13374/j.issn1001-053x.2012.09.001