陈英旭
主要从事环境污染模拟与控制、水(湖泊)污染控制与治理、废弃物污染控制与资源化等研究。
个性化签名
- 姓名:陈英旭
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学术头衔:
博士生导师,
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学科领域:
环境科学技术基础学科
- 研究兴趣:主要从事环境污染模拟与控制、水(湖泊)污染控制与治理、废弃物污染控制与资源化等研究。
陈英旭:浙江大学教授,博士生导师,1962年出生,1982年毕业于原浙江农业大学环保系,1990年在浙江农业大学分别获博士学位,1991年在中科院南京土壤研究所土壤圈物质循环开放实验室破格晋升副研究员,任实验室副主任,1995年在浙江农业大学晋升为教授,1996年到德国柏林工业大学访问研究,1997年被评为浙江大学博士生导师。入选“新世纪百千万人才工程国家级人选”,"浙江省151人才工程"第一层次人才、浙江省中青年学科带头人。现任浙江大学环资学院常务副院长,第九届、十届全国政协委员,中国环境科学学会理事,中国土壤学会土壤环境专业委员会副主任,浙江省环境科学学会副理事长、《应用生态学报》和《环境污染与防治》副主编。主要从事环境污染模拟与控制、水(湖泊)污染控制与治理、废弃物污染控制与资源化等研究。主持973子项目、863项目、国家自然科学重点基金和面上基金、省科技厅重大项目等课题研究。参加完成的“土壤-植物系统重金属污染研究"成果获1998年中国科学院自然科学二等奖。主持完成的"运河(杭州段)底泥污染特征及处置方案研究"获2001年浙江省科技进步三等奖;“浙江环境与资源类人才培养模式和实验教学平台建设”获2004年浙江省教学成果一等奖;在国内外刊物发表论文100多篇,其中SCI收录50余篇, EI收录30余篇。主编出版《环境学》、《资源与环境概论》两部教材。授权国家发明专利两项,授权实用新型专利四项。
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15
【期刊论文】Irreversible sorption of pentachlorophenol to sediments: experimental observations
陈英旭, Ying-Xu Chen a, *, Hua-Lin Chen a, b, Yun-Tai Xu a, Meng-Wei Shen a
Y.-X. Chen et al./Environment International 32 (2004) 31-37,-0001,():
-1年11月30日
The partitioning behavior of pentachlorophenol (PCP) in five sediments was studied using equilibrium sorption experiments and multiple cycles of sorption and desorption experiments. The results of the equilibrium sorption experiments showed that the isotherms of PCP on five sediments were linear and the partitioning coefficients (Kd) were proportional to the organic carbon content of the sediments. The average organic carbon content normalized partitioning coefficient (logKoc) of five sediments was 2.83
Pentachlorophenol (, PCP), , Sediment, Hysteresis indices, Irreversible sorption, Distribution coefficients, Humic substances
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【期刊论文】The role of citric acid on the phytoremediation of heavy metal contaminated soil
陈英旭, Y.X. Chen a, *, Q. Lin a, Y.M. Luo b, Y.F. He a, S.J. Zhen a, Y.L. Yu a, G.M. Tian a, M.H. Wong c
Y.X. Chen et al./Chemosphere 50 (2003) 807-811,-0001,():
-1年11月30日
Adsorption and hydroponics experiments were conducted to study the role of citric acid on the phytoremediation of heavy metal contaminated soil. The results show that addition of citric acid decreased the adsorption of both lead and cadmium, such an effect was bigger for cadmium than for lead. The decrease in the adsorption of Pb and Cd was mainly due to a decrease of pH in the presence of citric acid. The presence of citric acid could alleviate the toxicity of Pb and Cd to radish, and stimulate their transportation from root to shoot. The studies of heavy metal forms using sequential extraction demonstrated that lead was mainly existed as FHAC (a lower bioavailable form) in the root, while FHCl was the dominant form in the leaf. The addition of citric acid to the soil changed the concentration and relative abundance of all the forms. The detoxifying effect of citric acid to Pb in shoots might result from the transformation of higher toxic forms into lower toxic forms. Cadmium was mainly present as FNaCl, therefore, it had higher toxicity than lead. The addition of citric acid increased the abundance of FH2O+FNaCl, indicating that citric acid treatment could transform cadmium into more transportable forms.
Citric acid, Phytoremediation, Pb, Cd
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陈英旭, 薛生国, 陈英旭*, 林琦, 徐圣友, 王远鹏
生态学报,2003,23(5):935~937,-0001,():
-1年11月30日
自2000年以来,对位于湖南省湘潭锰矿污染区的植物和土壤进行了一系列的野外调查,以着力寻找锰的超积累植物。结果表明,商陆科植物商陆对锰具有明显的富积特性,叶片内锰含量最高达19299mg/kg。这一发现填补了我国锰超积累植物的空白,为探讨锰在植物体中的超积累机理和锰污染土壤的植物修复提供了一种新的种质资源。
商陆, 锰, 超积累
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陈英旭, Ying-Xue Chen a, *, Yan Zhang b, Guang-Hao Chen c
Y.-X. Chen et al./Water Research 37 (2003) 2489-2495,-0001,():
-1年11月30日
This study focused on the appropriate catalyst preparation and operating conditions for maximizing catalytic reduction efficiencyof nitrate into nitrogen gas from groundwater. Batch experiments were conducted with prepared Pd and/or Cu catalysts with hydrogen gas supplied under specific operating conditions. It has been found that Pd-Cu combined catalysts prepared at a mass ratio of 4:1 can maximize the nitrate reduction into nitrogen gas. With an increase in the quantityof the catalysts, oth nitrite intermediates and ammonia can be kept at a low level. It has also been found that the catalytic activity is mainly affected by the mass ratio of hydrogen gas to nitrate nitrogen, and hydrogen gas gauge pressure. Appropriate operating values of H2/NO3-N ratio, hydrogen gas gauge pressure, pH, and initial nitrate concentration have been determined to be 44.6g H2/g N, 0.15atm, 5.2(-), 100mgL-1 for maximizing the catalytic reduction of nitrate from groundwater.
Nitrate removal, Groundwater, Catalytic reduction, Catalyst, Nitrate, Ammonia
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陈英旭, Ying-Xu Chen a, *, Guang-Wei Zhu b, Guang-Ming Tian a, Hua-Lin Chen a
Y.-X. Chen et al./Chemosphere 53 (2003) 1179-1187,-0001,():
-1年11月30日
In this paper, downward movement of phosphorus and copper as dredged sediment applied on sandy loam soil was studied by column leaching experiments. Three sediment application rate, (i.e., 1, 2 and 5-cm depth of sediments) were applied to the top of the soil columns. Two and a half months leaching experiments were conducted, which include a 15-day un-watered period. Concentrations of phosphorus and copper in the leachate and the vertical distribution of Olsen-P and diethylenetriaminepentaacetic acid (DTPA) extractable Cu in the soil columns were determined. The results showed that, un-watered period could increase the downward movements of phosphorus and copper. Sediment application significantly increased Olsen-P concentration in the top 15cm of the soil columns, but has not significantly affected that in the deeper soil layer. The 1-cm depth sediment treatment did not increase the DTPA extractable Cu concentration in the whole soil column. The 5-cm depth sediment treatment, however, significant increased the DTPA extractable Cu in the deeper soil layers. This study suggested that the application of dredged sediment laden with P and Cu on sandy loam soil might cause the significant downward movement of phosphorus and copper.
Sediment, Land application, Leaching, Soil column, Phosphorus, Copper
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【期刊论文】Physiological mechanism of plant roots exposed to cadmium
陈英旭, Y.X. Chen a, *, Y.F. He a, Y.M. Luo b, Y.L. Yu a, Q. Lin a, M.H. Wong c
Y.X. Chen et al./Chemosphere 50 (2003) 789-793,-0001,():
-1年11月30日
Physiological experiments on plant roots exposed to cadmium were conducted on carrot and radish using a liquid culture and a pot experiment with a series of cadmium applications. Activities of four enzymes (catalase, peroxidase, polyphenol oxidase, superoxide dismutase), and concentrations of free proline and malonaldehyde in the roots of both plants were investigated. Results showed that the germination rate and growth of roots of both plants were inhibited at the concentration of 20mg Cd/l, and the inhibition was increased with the increasing concentrations of cadmium, both in the liquid culture and in the pot experiment; activities of the four enzymes declined similarly in both species. The concentration of proline in roots reached the maximum when the application of cadmium was at the level of 20mg/l in the liquid culture (or 20mg/kg in soil), and then it declined slowly with the increasing concentration of cadmium. However, the reverse trend was observed for the concentration of malonaldehyde. All of bio-indicators measured here was quite sensitive to the addition of cadmium.
Cadmium, Plant roots, Physiological mechanism, Enzyme activities
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【期刊论文】Phytotoxicity of dredged sediment from urban canal as land application
陈英旭, Y.X. Chen a, *, G.W. Zhu a, G.M. Tian a, G.D. Zhou b, Y.M. Luo c, S.C. Wu c
Y. X. Chen et al./Environmental Pollution 117 (2002) 233-241,-0001,():
-1年11月30日
Phytotoxicity of dredged sediment from Hangzhou section of the Grand Canal as land application was evaluated by pakchoi (Brassica chinensis L.) germination tests and pot experiments. Germination rates of pakchoi in the dredged sediment and in sediment-applied soils were both significantly higher than that in the soil controls, while the germination rate between the sedimentapplied soils was no significant difference. In pot experiments, plant height and biomass were increased by the dredged sediment application rate in the rate of lower than 540t ha 1, but decreased when the application rate was over this rate. Concentrations of Zn and Cu in pakchoi were linearly increased with the increasing of the application rate of the dredged sediment. Both plant height and biomass of pakchoi in sediment-treated red soil were higher than that in sediment-treated paddy soil, regardless the application rate. The results suggest that plant biomass of pakchoi may be used as an indicator of the phytotoxicity of the dredged sediment. It also showed that red soil is more suitable to accept the dredged sediment than paddy soil, and 270 t ha 1 is a safe application rate both in red soil and paddy soil.
Sediment, Land disposal, Heavy metal, Biological accumulation coefficients, Risk assessment
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【期刊论文】Photocatalytic degradation of cationic azo dye by TiO2/bentonite nanocomposite
陈英旭, Zhenshi Sun a, *, Yingxu Chen a, Qiang Ke a, Ye Yang a, Jun Yuan b
Z. Sun et al./Journal of Photochemistry and Photobiology A: Chemistry 149 (2002) 169-174,-0001,():
-1年11月30日
Titanium dioxide/bentonite clay nanocomposite prepared by acid-catalyzed sol-gel method was used as photocatalyst in the reaction of cationic azo dye decomposition in water. The incorporation of TiO2 was confirmed by powder X-ray diffraction (XRD) and X-ray photoelectron spectrometer (XPS). The photocatalytic activity of those nanocomposite photocatalysts was much higher than that of the pure titanium dioxides. The nanocomposite created a kinetic synergy effect in Cationic Red GTL (GTL) disappearance with an increase of the rate constant by a factor of 2.57 for neat TiO2 (P-25). The photo-activities were greatly dependent on the solution pH, and it was more effective for GTL to be degraded under alkaline condition. That was likely to contribute for the acid-base equilibria on the surface of the nanocomposite. Results also indicated that the proper addition of hydrogen peroxide could improve the decolorization rate, but the excess hydrogen peroxide could quench the formation of •OH.
Nanocomposite, Bentonite clay, Cationic Red GTL, Photocatalytic degradation, Titanium dioxide
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【期刊论文】A novel tri-primer PCR method (TP-PCR) for rapid construction of fpg gene
陈英旭, Ying Xu Chen a, *, He Liu a, Wen Bo Zhang b, Yong Feng Jin b
Y. X. Chen et al./Journal of Microbiological Methods 56 (2004) 359-364,-0001,():
-1年11月30日
A novel tri-primer polymerase chain reaction method (TP-PCR) was developed for the construction of a fused fpg gene, in which no endonuclease and ligase were used. Instead, two templates and three specifically designed primers were applied. Results showed that pheB and gfp genes, which encodes the catechol 2, 3-dioxygenase and the green fluorescent protein (GFP), respectively, were successfully fused into an fpg gene through the rapid TP-PCR system, indicating that TP-PCR method could be a useful tool for DNA fragment fusion in which no proper endonuclease sites were available.
Tri-primer PCR (, TP-PCR), , Fused fgp gene, Catechol 2,, 3-dioxygenase, Green fluorescent protein
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【期刊论文】Fe deficiency induces Cu uptake and accumulation in Commelina communis
陈英旭, Yingxu Chen a, *, Jiyan Shi a, Guangming Tian a, Shaojian Zheng b, Qi Lin a
Y. Chen et al./Plant Science 166 (2004) 1371-1377,-0001,():
-1年11月30日
Tissue concentrations of some mineral elements appeared to be influenced by plant Fe status. The influence of Fe deficiency on Cu uptake and accumulation in Commelina communis, and the relationship between Cu uptake and root Fe (Ⅲ) chelate reductase (FCR) activity were investigated in this study. The results showed that Cu accumulation in C. communis was increased with the drop of Fe concentration in nutrient solution. Cu uptake in C. communis was significantly enhanced by Fe deficiency. Cu uptake in Fe-deficient plants were still higher than that of Fe-sufficient plants when P-type ATPase inhibitor Na3VO4 was added in the solution, which demonstrated that Fe deficiency induced stimulation of the plasma membrane H+-ATPase did not play a role in the enhanced Cu uptake. Fe and Cu deficiency could induced root Fe (Ⅲ) chelate reductase activity in C. communis. Both Fe (Ⅲ) chelate reductase activity aud Cu concentration in roots inhibited distinctly by cycloheximide, a kind of protein synthesis inhibitor. In the time course of Fe deficiency, there simultaneously appeared Cu concentration and FCR activity peaks in roots at day 9. All above evidences demonstrated Cu uptake aud accumulation in C. communis were probably related to the root FCR activity.
Commelina communis, Fe deficiency, Copper uptake, Fe(, Ⅲ), chelate reductase
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