郑祥
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- 姓名:郑祥
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学科领域:
环境科学技术基础学科
- 研究兴趣:
郑祥博士本人长期致力于膜生物反应器的研制和应用以及污水系统中病原微生物的控制研究。硕士论文进行了中试规模的分离式膜生物反应器处理印染废水的研究,博士论文进行了重力式出流式膜生物反应器的开发与研制,博士后期间对污水处理过程中病毒等病原微生物的控制及其对水质安全的影响进行了较深入研究。在近3年的工作期间已经主持完成了 “畜禽屠宰场等敏感区域的公共卫生安全研究”项目。在新型膜生物反应器、高浓度难降解有机废水处理等技术与新工艺的研究开发中发挥了独特的作用,取得了创新性成果。这些研究成果的学术价值和技术创新的重要性,已得到本领域国内外专家的肯定。近年来参与了国家自然科学基金重点项目、“九五”国家重点科技攻关计划、国家重大科技专项“水污染控制技术与治理工程”和国家863项目等。
目前已申请国家发明专利1项并于2004年获得授权。在Process Biochemistry, Desalination, Water Science and Technology等国内外学术期刊上发表论文20余篇,其中SCI论文6篇,EI收录6篇,ISTP收录2篇。这些文章已被其他作者引用200余次。从事科研工作以来,主持国家自然科学基金等国家级项目1项,省部级项目1项;作为主要参加人先后参加了国家863课题、国家自然科学基金以及省部委科技计划项目10余项。
已往项目中的主要创新工作概括如下:①在国内首次通过模型试验,考察膜生物反应器系统运行过程中不同膜孔径与操作条件对病毒截留效果的影响,从而为膜生物反应器系统中膜材料的选择与操作参数的优化提供坚实的基础;②深入细致地研究了不同种类模型病毒在污水处理系统中的生态行为与生存规律,从而有助于了解消毒剂的使用对水质安全的影响并寻求相应的防范措施;③开发了高效低耗的重力式出流式膜生物反应器工艺。
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【期刊论文】Dyeing and Printing Wastewater Treatment Using A MBR With Gravity Drain
郑祥
,-0001,():
-1年11月30日
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郑祥, ZHENG Xiang, FAN Yao- bo, WEI Yuan- song
Journal of Environmental Sciences Vol. 15, No. 4, pp. 449- 455, 2003,-0001,():
-1年11月30日
A pilot- scale(10 m3/d) anoxic/oxic membrane bioreactor(A/O MBR) was tested for dyeing wastewater treatment of woolen mill without wasting sludge in 125 days operation. Results showed that the effluent quality was excellent, i. e. effluent COD less than 25 mg/L, BOD5 under 5 mg/L, turbidity lower than 0.65 NIU, and colour less than 30 DT, and met with the reuse water standard of China. The removal rates of COD, BOD5, colour, and turbidity were 92.4%, 98.4%, 74% and 98.9%, respectively. Constant- flux operation mode was carried out in this study, and backwash was effective for reducing membrane fouling and maintaining constant flux. Membrane fouling had heavy impact on energy consumption. More attention should be paid on pipe selection and design for the sidestream MBR system, too.
activated sludge, backwash, constant flux, dyeing wastewater treatment, membrane bioreactor(, MBR), , woolen mill
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【期刊论文】Dyeing and printing wastewater treatment using a membrane bioreactor with a gravity drain
郑祥, Xiang Zheng, Junxin Liu
Desalination 190(2006) 277- 286,-0001,():
-1年11月30日
A laboratory- scale membrane bioreactor(MBR) with a gravity drain was tested for dyeing and printing wastewater treatment from a wool mill. The MBR was operated with continuous permeate by gravity and without chemical cleaning for 135 days. Results showed that excellent effluent quality could meet the reuse water standard in China. The average concentrations of COD, BOD5, turbidity and color in the effluent were 36.9 mg l-1, 3.7 mg l-1, 0.2 NTU and 21 dilution times(DT), respectively. The average removal rates of COD, BOD5, turbidity and color were 80.3%, 95.0%, 99.3% and 58.7%, respectively. The membrane flux increased with increasing of aeration intensity, and its increasing rate was related to pressure- heads. The higher the pressure- head, the greater the impact of aeration intensity on membrane flux. Statistical analysis also showed that both the pressure- head and aeration intensity significantly affected membrane flux. Due to its compact design, simple operation and easy maintenance, MBR with a gravitational filtration system hs low energy consumption and is cost- effective to build and operate. If the life expectancy of the membrane is set for 3- 4 years and the membrane flux is set at 15 l/m2h, such a MBR would be very competitive.
Gravitational filtration, Membrane bioreactor(, MBR), , Dyeing and printing wastewater
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