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可燃吸附剂从焦化废水中分离潜热实现低能耗工艺的实验研究 ——以活性炭为例

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张志, 韦朝海, 麦礼杰, 刁春鹏, 龚倩, 关清卿, 于旭彪, 吴超飞, 胡芸. 可燃吸附剂从焦化废水中分离潜热实现低能耗工艺的实验研究 ——以活性炭为例[J]. 环境化学, 2012, 31(10): 1510-1517.
引用本文: 张志, 韦朝海, 麦礼杰, 刁春鹏, 龚倩, 关清卿, 于旭彪, 吴超飞, 胡芸. 可燃吸附剂从焦化废水中分离潜热实现低能耗工艺的实验研究 ——以活性炭为例[J]. 环境化学, 2012, 31(10): 1510-1517.
shu
ZHANG Zhi, WEI Chaohai, MAI Lijie, DIAO Chunpeng, GONG Qian, GUAN Qingqing, YU Xubiao, WU Chaofei, HU Yun. Study of combustible adsorbent for separation of potential heat from coking wastewater to reduce energy consumption of water technology: an example of activated carbon[J]. Environmental Chemistry, 2012, 31(10): 1510-1517.
Citation: ZHANG Zhi, WEI Chaohai, MAI Lijie, DIAO Chunpeng, GONG Qian, GUAN Qingqing, YU Xubiao, WU Chaofei, HU Yun. Study of combustible adsorbent for separation of potential heat from coking wastewater to reduce energy consumption of water technology: an example of activated carbon[J]. Environmental Chemistry, 2012, 31(10): 1510-1517.
shu

可燃吸附剂从焦化废水中分离潜热实现低能耗工艺的实验研究 ——以活性炭为例

  • 1.

    华南理工大学环境科学与工程学院,工业聚集区污染控制与生态修复教育部重点实验室, 污染控制与生态修复广东省普通高等学校重点实验室, 广州, 510006

  • 基金项目:

    国家自然科学基金重点项目(21037001)

    "十一五"国家科技支撑计划重点项目(2008BAC32B06-1)

    国家高技术研究发展计划项目(2009AA06Z319)

    华南理工大学中央高校基本科研业务经费 (2011ZP0006)资助.

Study of combustible adsorbent for separation of potential heat from coking wastewater to reduce energy consumption of water technology: an example of activated carbon

  • 1.

    College of Environmental Science and Engineering, South China University of Technology; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters of Ministry of Education; The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, Guangzhou, 510006, China

  • Fund Project:

  • 摘要: 以活性炭和焦化废水为例,将吸附废水尾水的粉末活性炭(PAC)分离,再吸附原水,从吸附过程和投加量考察COD的去除,运用GC/MS对吸附过程的微观组分进行解析,再进行燃烧热值测定.研究结果表明,针对尾水选择合适粉末活性炭,少量投加即可使出水COD达标排放;吸附尾水时主要去除生物系统难以降解的有机组分,再吸附原水时,对酚类物质、氮杂环化合物以及多环芳烃类都具有显著的效果,表现出非选择性,吸附过程完全受控于高浓度组分;单位废水可提供的热值Qw=(45.990±3.521)×Cm,吸附原水有机物的活性炭,其燃烧热值有显著提高,增量ΔQ由ΔQ=(45.990±3.521)×(Cm－Ce)×V决定.针对高浓度难降解的工业有机废水,上述工艺通过能源回收的方式可实现工程造价与运行费用的显著降低.
    Abstract: The application of activated carbon (AC) served as both adsorbent and fuel in the treatment of coking wastewater was investigated in this work. Powdered activated carbon (PAC) was firstly used for the adsorption of tail effluent, and then it was reused to treat the influent of coking wastewater. The adsorption processes were investigated by GC/MS, and the calorific value of saturated PAC was tested after the secondary adsorption. The results indicated that the effluent can meet the COD discharge standard with a small dose of PAC. The refractory compounds and long chain hydrocarbon compounds in tail effluent can be removed by adsorption. Moreover, phenols in coking wastewater were removed during the second adsorption process, suggesting that the removal efficiency of PAC was not affected. The calorific value of coking wastewater per unit mass can be calculated by equation of Qw=(45.990±3.521)×Cm. After adsorption, the calorific value of PAC increased and it was determined by:ΔQ=(45.990±3.521)×(Cm－Ce)×V. The energy recovery process can reduce the cost on project and operation for coking wastewater treatment.
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    [2] Lim B R,Hu H Y,Fujie K,Biological degradation and chemical oxidation characteristics of coke-oven wastewater[J],Water Air Soil Pollut,2003,146:23-33
    [3] 韦朝海,贺明和,任源,等.焦化废水污染特征及其控制过程与策略分析[J].环境科学学报,2007,27 (7) :1083-1093
    [4] 赵振国. 吸附作用应用原理[M].北京:化学工业出版社,2005 :341-343
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    [7] Zhang Mohe,Zhao Quanlin,Bai Xue,et al.,Adsorption of organic pollutants from coking wastewater by activated coke[J].Colloids and Surfaces A:Physicochem Engk, 2010 ,Aspects 362 :140-146
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    [12] 范延臻,王宝贞,王琳,等.改性活性炭对有机物的吸附性能[J].环境化学,2001,9(5):444-448
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  • 收稿日期:  2012-02-20
张志, 韦朝海, 麦礼杰, 刁春鹏, 龚倩, 关清卿, 于旭彪, 吴超飞, 胡芸. 可燃吸附剂从焦化废水中分离潜热实现低能耗工艺的实验研究 ——以活性炭为例[J]. 环境化学, 2012, 31(10): 1510-1517.
引用本文: 张志, 韦朝海, 麦礼杰, 刁春鹏, 龚倩, 关清卿, 于旭彪, 吴超飞, 胡芸. 可燃吸附剂从焦化废水中分离潜热实现低能耗工艺的实验研究 ——以活性炭为例[J]. 环境化学, 2012, 31(10): 1510-1517.
shu
ZHANG Zhi, WEI Chaohai, MAI Lijie, DIAO Chunpeng, GONG Qian, GUAN Qingqing, YU Xubiao, WU Chaofei, HU Yun. Study of combustible adsorbent for separation of potential heat from coking wastewater to reduce energy consumption of water technology: an example of activated carbon[J]. Environmental Chemistry, 2012, 31(10): 1510-1517.
Citation: ZHANG Zhi, WEI Chaohai, MAI Lijie, DIAO Chunpeng, GONG Qian, GUAN Qingqing, YU Xubiao, WU Chaofei, HU Yun. Study of combustible adsorbent for separation of potential heat from coking wastewater to reduce energy consumption of water technology: an example of activated carbon[J]. Environmental Chemistry, 2012, 31(10): 1510-1517.
shu

可燃吸附剂从焦化废水中分离潜热实现低能耗工艺的实验研究 ——以活性炭为例

  • 1. 华南理工大学环境科学与工程学院,工业聚集区污染控制与生态修复教育部重点实验室, 污染控制与生态修复广东省普通高等学校重点实验室, 广州, 510006
  • 收稿日期:  2012-02-20
基金项目:

国家自然科学基金重点项目(21037001)

"十一五"国家科技支撑计划重点项目(2008BAC32B06-1)

国家高技术研究发展计划项目(2009AA06Z319)

华南理工大学中央高校基本科研业务经费 (2011ZP0006)资助.

摘要: 以活性炭和焦化废水为例,将吸附废水尾水的粉末活性炭(PAC)分离,再吸附原水,从吸附过程和投加量考察COD的去除,运用GC/MS对吸附过程的微观组分进行解析,再进行燃烧热值测定.研究结果表明,针对尾水选择合适粉末活性炭,少量投加即可使出水COD达标排放;吸附尾水时主要去除生物系统难以降解的有机组分,再吸附原水时,对酚类物质、氮杂环化合物以及多环芳烃类都具有显著的效果,表现出非选择性,吸附过程完全受控于高浓度组分;单位废水可提供的热值Qw=(45.990±3.521)×Cm,吸附原水有机物的活性炭,其燃烧热值有显著提高,增量ΔQ由ΔQ=(45.990±3.521)×(Cm－Ce)×V决定.针对高浓度难降解的工业有机废水,上述工艺通过能源回收的方式可实现工程造价与运行费用的显著降低.

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