水网藻对不同粒径悬浮态镉的去除机制研究
作者：
胡达理;李智义;邓晓舟;彭亮
期刊：
湖南农业科学 ,2018年(9):51-53+59 ISSN：1006-060X
作者机构：
株洲市农业委员会植保站,湖南 株洲,412000;湖南农业大学资源环境学院,湖南 长沙,410128;[彭亮; 邓晓舟; 李智义] 湖南农业大学;[胡达理] 株洲市农业委员会
关键词：
不同粒径;高岭土;水网藻;金属分布
摘要：
稻田系统对灌溉水中悬浮态镉的吸附是农田灌溉水中重金属净化的主要过程.从稻田结皮中采集水网藻,研究其对不同粒径高岭土载镉悬浊液的去除动力学过程,并结合重金属的分布形态分析,探讨结皮对不同粒径悬浮态镉的去除机制.结果显示:水网藻对离子态镉的富集作用强于胶体态镉,而对胶体态镉的富集量与胶体的粒径呈负相关.可见,进入水体中悬浮物与重金属结合后,能降低其被藻类俘获概率,增加其迁移能力,导致其污染距离增加.
语种：
中文
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Effects of cadmium on calcium homeostasis in the white-rot fungus Phanerochaete chrysosporium
作者：
Zhang, Xiaoxiao;Shao, Jihai;Chen, Anwei* ;Shang, Cui;Hu, Xinjiang;...
期刊：
Ecotoxicology and Environmental Safety ,2018年157:95-101 ISSN：0147-6513
通讯作者：
Chen, Anwei
作者机构：
[Luo, Si; Peng, Liang; Shang, Cui; Zhang, Xiaoxiao; Shao, Jihai; Zeng, Qingru; Chen, Anwei; Lei, Ming] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.;[Hu, Xinjiang] Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Changsha 410004, Hunan, Peoples R China.
通讯机构：
[Chen, Anwei] H;Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.
关键词：
Cadmium;Calcium;Homeostasis;Phanerochaete chrysosporium;Stress
摘要：
Due to the widespread application of white-rot fungi for the treatment of pollutants, it's crucial to exploit the special effects of pollutants on the microbes. Here, we studied the effects of cadmium on calcium homeostasis in the most studied white-rot fungus Phanerochaete chrysosporium. The response of P. chrysosporium to cadmium stress is concentration-dependent. A high concentration of cadmium caused the release of calcium from P. chrysosporium, while a hormesis effect was observed at a lower cadmium concentration (10 μM), which resulted in a significant increase in calcium uptake and reversed the decrease in cell viability. Calcium (50 μM) promoted cell viability (127.2% of control), which reflects that calcium can protect P. chrysosporium from environmental stress. Real-time changes in the Ca 2+ and Cd 2+ fluxes of P. chrysosporium were quantified using the noninvasive microtest technique. Ca 2+ influx decreased significantly under cadmium exposure, and the Ca 2+ channel was involved in Ca 2+ and Cd 2+ influx. The cadmium and/or calcium uptake results coupled with the real-time Ca 2+ and Cd 2+ influxes microscale signatures can enhance our knowledge of the homeostasis of P. chrysosporium with respect to cadmium stress, which may provide useful information for improving the bioremediation process. © 2018 Elsevier Inc.
语种：
英文
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Enhancement of visible-light photocatalytic activity of Cu3B2O6 hybridized with g-C3N4
作者：
Luo, Si;Wang, Fan;Yu, Kai;Shao, Jihai;Peng, Liang;...
期刊：
Colloids and Surfaces A: Physicochemical and Engineering Aspects ,2017年520:409-419 ISSN：0927-7757
通讯作者：
Zeng, Qingru
作者机构：
[Luo, Si; Peng, Liang; Shao, Jihai; Zeng, Qingru; Wang, Fan] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.;[Yu, Kai] Shanghai Acad Environm Sci, Shanghai 200233, Peoples R China.
通讯机构：
[Zeng, Qingru] H;Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.
关键词：
Cu3B2O6;g-C3N4;Heterojunction;Hydrogen peroxide;Visible-light
摘要：
Novel g-C3N4/Cu3B2O6 hybrid photocatalysts were successfully synthesized by a liquid chemisorption and thermal post-treatment method. The as-synthesized samples were extensively characterized by thermogravimetric analysis (TGA), X-ray diffraction (XRD), Fourier transform infrared (FTIR), X-ray photoelectron spectra (XPS), field-emission scanning electron microscopy (FE-SEM), transmission electron microscope (TEM), UV–vis diffuse reflectance spectra (UV-vis DRS), Brunauer-Emmett-Teller (BET), photoluminescence (PL) and photocurrent. The photocatalytic performances of the g-C3N4/Cu3B2O6 composites were evaluated by degrading methylene blue (MB) using H2O2 as an oxidant under visible-light irradiation. It was found that 60% g-C3N4/Cu3B2O6 sample exhibited optimal kinetic constant of 0.0474min−1, which was 3.16 and 2.14 times higher than that of g-C3N4 and Cu3B2O6, respectively. This enhancement was mainly attributed to the elevated separation efficiency of photogenerated electron-hole pairs with the integration g-C3N4 and Cu3B2O6, resulting in the enhanced activity of activating H2O2 to decolorize MB under visible-light. The radical trapping experiments demonstrated that h+, e− and ·OH were responsible for MB photodegradation. Furthermore, an underlying mechanism of the g-C3N4/Cu3B2O6+H2O2+vis photocatalytic system was proposed. © 2017 Elsevier B.V.
语种：
英文
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Oxalate-enhanced reactivity of nanoscale zero-valent iron under different conditions of O2, N2 or without aeration
作者：
Peng, Ruxin;Shao, Jihai;Xie, Yuanlin;Chen, Anwei;Peng, Liang;...
期刊：
Chemical Engineering Journal ,2017年330:398-406 ISSN：1385-8947
通讯作者：
Luo, Si
作者机构：
[Luo, Si; Peng, Ruxin; Peng, Liang; Shao, Jihai; Zeng, Qingru; Chen, Anwei; Xie, Yuanlin] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Luo, Si] H;Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.
关键词：
Aerobic;Anaerobic;Nitrobenzene;Oxalic acids;Zero-valent iron
摘要：
Being that the influence of organic ligands on contaminant removal by nanoscale zero valent iron (nZVI) has been explored in quite a few studies, there is little information on reaction mechanisms of the ZVI-ligand system under different aeration conditions. The degradation of nitrobenzene (NB) by nZVI-oxalic acids (OA) was investigated under N2, O2 and without aeration conditions. From the findings, it was evident that OA dramatically improved NB degradation by nZVI with all of the aeration conditions. Approximately 100% of NB was degraded by nZVI-OA+N2 system after 60 min of reaction, followed in effectiveness by nZVI-OA+ without aeration (95%) as well as nZVI-OA+O2 (85%). Operation parameters including OA concentration and pH had significant effect on the removal of NB in the nZVI-OA system. 3mM OA concentration and pH 3.0 were found to be favourable. The Fe2+, total dissolved iron concentrations, pH and ORP values in the nZVI-OA systems had also been monitored. Intermediates and trapping experiments showed that reduction played a fundamental role in the NB degradation by nZVI-OA under N2 or without aeration conditions. The formation of Fe(OA)0 and Fe(OA)22− complexes had lower standard ORP, which could improve the strength of reductant in the systems, and thus resulting in an increased degradation efficiency of NB by nZVI-OA+N2. Under O2 aeration condition, the NB degradation process could be regarded as an oxidation. In the meantime, OA promoted the production of reactive oxidants species by speeding up the oxidation rates of Fe2+ by O2 and H2O2. Summarily, the improved reactivity of nZVI was largely as a result of the strong complexation ability of OA. © 2017
语种：
英文
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Highly efficient removal of methylene blue from aqueous solution by a novel fishing-net effect of manganese oxide nano-sheets
作者：
Peng, Liang* ;Liu, Bin;Zeng, Qingru;Gu, Ji-Dong;Lei, Ming;...
期刊：
Clean Technologies and Environmental Policy ,2017年19(1):269-277 ISSN：1618-954X
通讯作者：
Peng, Liang
作者机构：
[Liu, Bin; Peng, Liang; Shao, Jihai; Zeng, Qingru; Gu, Ji-Dong; Lei, Ming] Hunan Agr Univ, Dept Environm Sci & Engn, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.;[Chai, Liyuan] Cent S Univ, Sch Met Sci & Technol, Changsha 410083, Hunan, Peoples R China.
通讯机构：
[Peng, Liang] H;Hunan Agr Univ, Dept Environm Sci & Engn, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.
关键词：
Manganese oxide;Methylene blue;Adsorption;Nano-sheet
摘要：
Manganese (IV) oxide (MnO2) nano-sheets were synthesized using tetramethylamine, H2O2, and MnCl2·4H2O and used in suspension for removal of methylene blue (MB). Up to 95% removal was achieved for MB concentrations less than 500mg/L. The adsorption data fitted better with the Freundlich isotherm model than the Langmuir model, indicating a heterogeneous adsorption of MB on MnO2nano-sheets. The maximum adsorption capacity of MnO2nano-sheets was approximately 4300mg/g, which is the highest yet reported. Suspensions of MnO2nano-sheets aggregated as precipitates after adsorption of MB. Using a suite of analyses, including X-ray diffraction and X-ray photoelectron spectroscopy, the high adsorption capacity was mainly attributed to ion exchange, coordination, and a fishing-net effect. The term, ‘fishing-net effect,’ is proposed here for the first time, to explain the extremely high adsorption capacity of nano-sheets, which increased with increasing ionic strength and sorbate concentration. Our results demonstrate that dispersive MnO2nano-sheets have a potential application in adsorption of organics from strongly basic solutions with high salinity. © 2016, Springer-Verlag Berlin Heidelberg.
语种：
英文
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Growth, microcystins synthesis, and cell viability of Microcystis aeruginosa FACHB905 to dissolved organic matter originated from cattle manure
作者：
Lin, Yiqing;Chen, Anwei;Wu, Genyi;Peng, Liang;Xu, Zhencheng;...
期刊：
International Biodeterioration & Biodegradation ,2017年118:126-133 ISSN：0964-8305
通讯作者：
Shao, Jihai
作者机构：
[Peng, Liang; Lin, Yiqing; Shao, Jihai; Chen, Anwei; Wu, Genyi; Xu, Zhencheng] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.;[Shao, Jihai] Hunan Agr Univ, Collaborat Innovat Ctr Grain & Oil Crops South Ch, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Shao, Jihai] H;Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.
关键词：
Chlorophyll fluorescence transients;Dehydrogenase;Dissolved organic matter;Microcystins;Microcystis aeruginosa
摘要：
Discharge of livestock effluents and poor management of livestock manures are important reasons for the eutrophication of water bodies. Dissolved organic matter (DOM) originated from livestock manure is ubiquitous in water, but the effects of such DOM and the organic substances on the growth and cyanotoxins synthesis of bloom-forming cyanobacteria are still unknown. In order to elucidate these issues, the growth, microcystins synthesis, and cell viability of Microcystis aeruginosa exposed to cattle manure originated DOM (CM-DOM) were investigated in this study. The results indicated that the growth of M. aeruginosa FACHB905 was slightly improved by CM-DOM at a concentration of 90 mg l<sup>−1</sup>(TOC). CM-DOM slightly decreased the electron transfer efficiency of photosystem II (PS II) of M. aeruginosa FACHB905. The synthesis and secretion of microcystins were promoted by CM-DOM. The cell viability (TTC test) increased in response to CM-DOM addition. Results presented in this study suggested that CM-DOM may increase the ecological and public health risks of M. aeruginosa when poor management of livestock manure is anticipated. ©2017 Elsevier Ltd
语种：
英文
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弹性实验教学模式的构建与实践
作者：
邵继海;林毅青;尚翠;陈安伟;彭亮;...
期刊：
教育教学论坛 ,2017年(20):151-152 ISSN：1674-9324
作者机构：
湖南农业大学 资源环境学院,湖南 长沙,410128;[邵继海; 彭亮; 尚翠; 林毅青; 陈安伟; 罗斯] 湖南农业大学
关键词：
弹性实验;实验教学;创新能力
摘要：
提高大学生的动手能力、分析问题和解决问题的能力,培养学生创新意识和科学素养是当今大学生实验课程教学的主要目的。传统实验教学模式虽然能提高学生的动手能力和实验操作技能,但是却忽视了学生的主观能动性,扼杀了学生的创新意识。针对这些问题,我们在多年实践教学改革的基础上提出了弹性实验教学模式。该实验教学模式将实验教学内容和学生的学习兴趣有机结合起来,充分调动了学生的主观能动性,引导学生围绕着实验教学目标自主完成实验题目的凝练、实验方案的撰写及独立完成探索性实验,从而达到提高学生的创新意识和综合素质。
语种：
中文
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Effect of Mineral-Based Amendments on Rice (Oryza sativa L.) Growth and Cadmium Content in Plant and Polluted Soil
作者：
Lei, Ming* ;Peng, Liang;Tie, Baiqing;Liao, Bohan;Hills, Colin D.;...
期刊：
ENVIRONMENTAL ENGINEERING SCIENCE ,2017年34(12):854-860 ISSN：1092-8758
通讯作者：
Lei, Ming;Song, Zhengguo
作者机构：
[Tie, Baiqing; Peng, Liang; Lei, Ming; Tang, Zhen] Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.;[Liao, Bohan] Cent South Univ Forestry & Technol, Coll Environm, Changsha, Hunan, Peoples R China.;[Hills, Colin D.] Univ Greenwich, Fac Sci & Engn, Chatham, England.;[Song, Zhengguo] Agroenvironm Protect Inst, Ctr Res Ecotoxicol & Environm Remediat, Kang Fu Rd, Tianjin 300191, Peoples R China.
通讯机构：
[Lei, Ming] H;[Song, Zhengguo] A;Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.;Agroenvironm Protect Inst, Ctr Res Ecotoxicol & Environm Remediat, Kang Fu Rd, Tianjin 300191, Peoples R China.
关键词：
bone char;cadmium;farmland;rice;sepiolite;silicon fertilizer
摘要：
Agricultural soils can be contaminated by industrial activities such as mining and smelting. Contamination with cadmium (Cd) can significantly exceed average background values, which can lead to uptake by rice plant and even harm to humans through food chain. In Hunan province, southern China, rice (Oryza sativa L.) is the main cereal, and human exposure to metallic contaminants through rice pathway is of particular interest. Shortage of land for rice growing means that contaminated agricultural soil is still cultivated for rice in Hunan. In the present work, a field experiment was undertaken to remediate Cd-contaminated paddy soil with three mineral amendments, namely sepiolite, bone char, and a silicon-based product (normally used as fertilizer). Average Cd concentration in the paddy soil was 2.85 mg/kg, significantly exceeding Chinese soil quality standards of China. Cd content was 0.59 mg/kg in sepiolite, 0.28 mg/kg in bone char, and 0.44 mg/kg in silicon fertilizer, respectively. Distribution fractions of Cd in soil followed the order of exchangeable (FI) > organic matter-bound (FIII) > residual (FIV) > oxide-bound (FII) without treatment, while exchangeable (FI) > residual (FIV) > organic matter-bound (FIII) > oxide-bound (FII) after treatment. With addition of three amendments, soil pH values and rice growth such as plant height and ripening rate increased. Concentrations of Cd in the rice plant (straw, husk, and unpolished rice) decreased after treatment. However, among three amendments, only the bone char addition reduced Cd accumulation in the rice plant below the Chinese standard value (0.2 mg/kg) and in the husk to below the Chinese feed hygiene standard for food (0.5 mg/kg). © Copyright 2017, Mary Ann Liebert, Inc. 2017.
语种：
英文
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Enhanced flocculation and sedimentation of trace cadmium from irrigation water using phosphoric fertilizer
作者：
Li, Bingyu;Peng, Liang* ;Wei, Dongning;Lei, Ming;Liu, Bin;...
期刊：
Science of The Total Environment ,2017年601-602:485-492 ISSN：0048-9697
通讯作者：
Peng, Liang
作者机构：
[Liu, Bin; Peng, Liang; Li, Zhiyi; Lin, Yiqing; Li, Bingyu; Wei, Dongning; Lei, Ming] Hunan Agr Univ, Dept Environm Sci & Engn, Changsha 410128, Hunan, Peoples R China.;[Gu, Jidong] Univ Hong Kong, Sch Biol Sci, Lab Environm Microbiol & Toxicol, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R China.;[Peng, Liang] Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Peng, Liang] H;Hunan Agr Univ, Dept Environm Sci & Engn, Changsha 410128, Hunan, Peoples R China.;Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.
关键词：
Cadmium;Flocculation;Irrigation water;Phosphoric fertilizer;Suspended substrate
摘要：
Suspended substrate (SS) in natural waters controls the interaction, transportation, and biological effects of heavy metals in water bodies. The large amount of cadmium (Cd) carried by SS is an important source of Cd pollution in irrigation water. In this study, a novel procedure to remove trace Cd coexisting with SS from irrigation water by fertilizer flocculation was investigated. Four common fertilizers (K2HPO4, (NH4)2HPO4, KH2PO4, and K2SO4) were used as flocculants. Batch experiments with various fertilizers revealed that the removal efficiency followed the order: K2HPO4 > (NH4)2HPO4 > KH2PO4 > K2SO4. When levels of K2HPO4 higher than 0.75 g/L were applied, the total Cd decreased from 20 to 3.8 μg/L after 12 h of flocculation, i.e., the removal efficiency reached 80%. The mechanism analysis(Zeta potential, multi-element analysis) results demonstrated that the aggregation of SS and its sedimentation by K2HPO4 were due to the combined effect of the oxidation of Fe2 + to Fe3 + and cation binding behavior towards SS, as a result of charge neutralization and electric double layer compression. This method of Cd removal from irrigation water is simple and has the potential to be applied in agricultural production.
语种：
英文
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生物土壤结皮的表征分析与吸附去除水体中镉的试验
作者：
李智义;刘斌;彭亮;宋慧娟;杨梅;...
期刊：
净水技术 ,2017年(3):73-78 ISSN：1009-0177
作者机构：
湖南农业大学资源环境学院,湖南长沙,410128;[杨梅; 刘斌; 彭亮; 宋慧娟; 邓晓舟; 李智义] 湖南农业大学
关键词：
生物土壤结皮;表征分析;镉去除;吸附与去除;水体
摘要：
通过从四个典型南方稻田环境采集灌溉水,土壤和生物结皮。筛选出镉污染程度最轻的生物土壤结皮并对其进行表征分析以及去除水体中镉的性能研究,表明生物土壤结皮为生物组分和土壤矿质元素的复合体,具有大量表面官能团。性能研究表明吸附容量与平衡浓度基本呈线性关系,最大吸附容量为8.481 mg/g;对水溶液中镉的最大去除率为99.79%。对镉吸附最适pH值为7且去除率达87.03%。在含高钙环境下对镉具有选择性吸收特征,同时对于平均分子量数量级低于107的络合态镉亦有较好的去除效果。生物结皮对去除水体中的镉具有潜在价值。
语种：
中文
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农业高等院校环境科学专业硕士研究生特色培养体系构建与实践
作者：
邵继海;陈安伟;彭亮;罗斯
期刊：
科教文汇(下旬刊) ,2017年(31):55-56 ISSN：1672-7894
作者机构：
湖南农业大学资源环境学院 湖南·长沙 410128;[邵继海; 彭亮; 陈安伟; 罗斯] 湖南农业大学
关键词：
农业高等院校;环境科学专业;特色培养体系
摘要：
培养具有农业特色的环境科学专业***人才，不仅顺应了当今社会对这类人才的需求，还使得农业高等院校环境科学专业***人才差异化于综合性大学相同专业的***人才，提高农业院校环境科学专业***人才的竞争能力。本文以湖南农业大学环境科学专业硕士研究生培养方案为例，从研究生课程体系设置和授课内容、学位论文的选题、特色学术交流与讨论体系等方面探讨了农业特色环境科学***人才培养体系构建与实践。
语种：
中文
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Phytoextraction of cadmium-contaminated soil and potential of regenerated tobacco biomass for recovery of cadmium
作者：
Yang, Yang;Ge, Yichen;Zeng, Hongyuan;Zhou, Xihong;Peng, Liang;...
期刊：
Scientific Reports ,2017年7(1):7210 ISSN：2045-2322
通讯作者：
Zeng, Qingru
作者机构：
[Zeng, Qingru; Yang, Yang] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.;[Zhou, Xihong; Zeng, Hongyuan; Peng, Liang; Zeng, Qingru; Ge, Yichen] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.;[Zeng, Qingru] Hunan Prov Key Lab Rural Ecosyst Hlth Dongting La, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Zeng, Qingru] H;Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.;Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.;Hunan Prov Key Lab Rural Ecosyst Hlth Dongting La, Changsha 410128, Hunan, Peoples R China.
摘要：
The aim of this study was to estimate the influence of regenerated tobacco on the extraction of Cd from two acidic soils as well as to address the problem of how to deal with contaminated leaves following phytoextraction. Results showed that a coppicing tobacco led to a decline in Cd concentration in regenerated leaves and stalks when plants were grown in pots, but increased concentrations in regenerated lower and middle leaves when plants were grown under field conditions. The highest recorded bioconcentration factors in Chaling and Guanxi soil were 37.53 and 19.21 in lower leaves in the field, respectively. Total Cd extraction efficiency in practice (9.43% for Chaling soil and 6.24% for Guanxi soil) under field conditions confirmed our theoretical calculations (10.0% for Chaling soil and 6.73% for Guanxi soil). Use of a 0.5% hydrochloric acid(HCl) solution was sufficient to reduce Cd (98.4%) in tobacco leaves to permissible levels as required by the Hygienic Standard for Feeds in China (</=0.5 mg kg(-1)). Regenerated tobacco has the potential to allow cultivation of Cd contaminated farmland to produce animal feed, assist in lowering total Cd content of soil, and allow income generation for farmers.
语种：
英文
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农田土壤重金属污染黏土矿物钝化修复研究进展
作者：
徐奕;梁学峰;彭亮;曾清如;徐应明
期刊：
山东农业科学 ,2017年49(2):156-162,167 ISSN：1001-4942
作者机构：
湖南农业大学资源环境学院,湖南长沙,410128;农业部环境保护科研监测所/农田重金属污染修复创新团队,天津,300191;[曾清如; 彭亮; 徐奕] 湖南农业大学;[徐应明; 梁学峰] 农业部环境保护科研监测所
关键词：
黏土矿物;土壤;重金属;钝化;进展
摘要：
随着我国工业化和城镇化的发展,农田土壤重金属污染日趋严重。钝化修复技术因其具有修复速率快、效果好、稳定性好、操作简单等优点较适应于大面积中轻度重金属污染农田修复治理。本文概述了农田土壤重金属污染钝化修复技术特点及国内外发展现状,阐述了农田土壤重金属污染钝化修复技术的发展历史。在此基础上就黏土矿物材料对农田土壤重金属污染钝化修复研究现状、农艺措施对农田土壤重金属污染黏土矿物材料钝化修复效应及稳定性影响、黏土矿物材料钝化修复对农田土壤环境质量影响等诸多方面进行了详细综述,并就黏土矿物材料在农田土壤重金属污染钝化修复中的应用及相关问题进行了展望。
语种：
中文
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Comparison of three types of oil crop rotation systems for effective use and remediation of heavy metal contaminated agricultural soil
作者：
Yang, Yang;Zhou, Xihong;Tie, Boqing;Peng, Liang;Li, Hongliang;...
期刊：
Chemosphere ,2017年188(Dec.):148-156 ISSN：0045-6535
通讯作者：
Zeng, Qingru
作者机构：
[Zeng, Qingru; Yang, Yang] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.;[Zhou, Xihong; Peng, Liang; Tie, Boqing; Zeng, Qingru; Li, Hongliang] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.;[Wang, Kelin; Yang, Yang] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China.;[Wang, Kelin; Yang, Yang] Huanjiang Observat & Res Stn Karst Ecosyst, Huanjiang 547100, Guangxi, Peoples R China.
通讯机构：
[Zeng, Qingru] H;Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.
关键词：
Phytomanagement;Rotation;Oil crops;Seed meals;Contaminated agricultural soil;Heavy metal extraction
摘要：
Selecting suitable plants tolerant to heavy metals and producing products of economic value may be a key factor in promoting the practical application of phytoremediation polluted soils. The aim of this study is to further understand the utilization and remediation of seriously contaminated agricultural soil. In a one-year field experiment, we grew oilseed rape over the winter and then subsequently sunflowers, peanuts and sesame after the first harvest. This three rotation system produced high yields of dry biomass; the oilseed rape-sunflower, oilseed rape-peanut and oilseed rape-sesame rotation allowed us to extract 458.6, 285.7, and 134.5 g ha−1 of cadmium, and 1264.7, 1006.1, and 831.1 g ha−1 of lead from soil, respectively. The oilseed rape-sunflower rotation showed the highest phytoextraction efficiency (1.98%) for cadmium. Lead and cadmium in oils are consistent with standards after extraction with n-hexane. Following successive extractions with potassium tartrate, concentrations of lead and cadmium in oilseed rape and peanut seed meals were lower than levels currently permissible for feeds. Thus, this rotation system could be useful for local farmers as it would enable the generation of income during otherwise sparse phytoremediation periods. © 2017
语种：
英文
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以应用能力培养为导向的《环境监测》课程实习教学探索
作者：
罗斯;雷鸣;彭亮;曾清如
期刊：
教育现代化 ,2016年(09):24-25+28 ISSN：2095-8420
作者机构：
湖南农业大学资源环境学院
关键词：
环境监测;课程实习;应用能力
摘要：
针对当代《环境监测》课程实习教学设置的现状与问题,提出了《环境监测》的实习教学体系、教学内容、教学方法及考核方式的改革建议。联系实际建立了以培养学生应用能力为主要目标的课程实习教学模式,以期调动学生实习的积极性和创造性,提升教学质量。
语种：
中文
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基于农业特色的环境科学实践教学体系的初步构建及运行
作者：
彭亮;曾清如;雷鸣;宋慧娟
期刊：
时代教育 ,2016年(1):75 ISSN：1672-8181
作者机构：
湖南农业大学资源环境学院环境科学与工程系,湖南长沙,410128;湖南农业大学资源环境学院,湖南长沙,410128;[曾清如; 雷鸣; 彭亮; 宋慧娟] 湖南农业大学
关键词：
农业特色;环境科学;体系;实践教学
摘要：
为了改变传统环境科学实践教学的重课本、重参观、重老师教的情况,本研究组进行新实践教学体系的创建。新实践教学体系以湖南衡山有机茶厂为基础,根据有机农业对新型农业环境人才的需求设计了三个方面的任务。在2014年下学期,研究组组织了5个班116人进行试验运行,结果表明新实践教学体系更能提高学生的积极性,发展学生的动手动脑能力。
语种：
中文
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坡缕石钝化与喷施叶面硅肥联合对水稻吸收累积镉效应影响研究
作者：
徐奕;李剑睿;黄青青;梁学峰;彭亮;...
期刊：
农业环境科学学报 ,2016年35(9):1633-1641 ISSN：1672-2043
作者机构：
湖南农业大学资源环境学院, 长沙, 410128;太原工业学院, 太原, 030008;农业部环境保护科研监测所,农田重金属污染修复创新团队, 农业部产地环境质量重点实验室, 天津, 300191;[徐奕; 彭亮] 湖南农业大学资源环境学院, 长沙, 410128;[李剑睿] 太原工业学院, 太原, 030008
关键词：
坡缕石;钝化;叶面硅肥;镉;水稻
摘要：
采用盆栽试验,研究了坡缕石钝化与喷施叶面硅肥联合处理对水稻吸收累积Cd效应的影响。试验结果表明,单独喷施叶面硅肥能够增加水稻产量,可以不同程度地降低水稻地上部Cd含量及Cd从根系向地上部的转运能力。与空白对照相比,糙米、颖壳和秸秆中Cd含量最大可分别降低34.9%、30.1%和34.0%,且在水稻不同生育期喷施硅肥对Cd在地上部累积的抑制效果依次为分蘖期+齐穗期>分蘖期>齐穗期。盆栽试验中添加1.0%的坡缕石后能够显著降低土壤中Cd的生物有效性,糙米、颖壳、秸秆以及根系中Cd含量分别比空白对照降低39.5%、28.6%、35.3%和20.9%。坡缕石钝化处理并联合在水稻分蘖期和齐穗期分别喷施0.1%~ 0.4%叶面硅肥结果表明,钝化处理与叶面阻Cd联合能更加有效地降低水稻地上部对Cd的吸收,其中稻米、颖壳和秸秆中重金属Cd含量最大分别可降低58.1%、63.3%和68.7%,糙米中Cd含量可由对照的0.43 mg·kg~(-1)降到低于稻谷Cd的食品安全国家标准限量值0.20 mg·kg~(-1)以下,但对根系中重金属Cd的含量降低仅为17.8%,与坡缕石单一钝化相比无显著差异。
语种：
中文
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不同钾肥对几种烟草吸收累积土壤镉的影响
作者：
晏哲;高志强;罗真华;胡鑫;彭亮;...
期刊：
环境化学 ,2016年35(9):1913-1920 ISSN：0254-6108
作者机构：
湖南农业大学资源环境学院, 长沙, 410128;湖南省株洲市烟草公司, 株洲, 412000;[晏哲; 胡鑫; 彭亮; 曾清如] 湖南农业大学资源环境学院, 长沙, 410128;[高志强; 罗真华] 湖南省株洲市烟草公司, 株洲, 412000
关键词：
钾肥;烟草;镉;抗性
摘要：
采用盆栽试验,研究了3种钾肥对4种烟草吸收土壤重金属镉的影响.烟草云烟87、云烟97、K326和湘3号生长在株洲茶陵镉污染1. 0 mg·kg~(-1)以下的酸性土壤上,通过追肥施入3种钾肥(硫酸钾、硅酸钾、磷酸氢二钾),分别测定烟草上、中、下部位烟叶中重金属的含量,探讨3种钾肥对污染土壤pH的影响及烟草吸收土壤重金属镉的差异性.结果表明,K326对镉的富集能力最强,云烟87最弱;硅酸钾对降低烟草吸收镉的效果最好,降低率可达20%—40%;且3种钾肥对土壤pH和镉化学形态的影响均呈显著性水平.
语种：
中文
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Using Fe-Mn binary oxide three-dimensional nanostructure to remove arsenic from aqueous systems
作者：
Lei, Ming;Qin, Pufeng;Peng, Liang* ;Ren, Yanqing;Sato, Tsutomu;...
期刊：
Water Supply ,2016年16(2):516-524 ISSN：1606-9749
通讯作者：
Peng, Liang
作者机构：
[Qin, Pufeng; Peng, Liang; Ren, Yanqing; Zeng, Qingru; Lei, Ming] Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.;[Peng, Liang; Yang, Zhihui; Chai, Liyuan] Cent S Univ, Sch Met Sci & Technol, Changsha 410083, Hunan, Peoples R China.;[Sato, Tsutomu] Hokkaido Univ, Environm Geol Lab, Sapporo, Hokkaido 0608628, Japan.
通讯机构：
[Peng, Liang] H;Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.
关键词：
adsorption;arsenic;Fe-Mn binary oxide;interface;nanostructure
摘要：
Fe-Mn binary oxide flower-like three-dimensional nanostructure synthesized from a hydrothermal procedure was used to remove arsenic (As) from aqueous solution. The samples were characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier-transform infrared spectrometry (FTIR). SEM images revealed that the Fe-Mn binary oxide was dispersed as flower-like spheres with a diameter of 500 - 800 nm and the width of the petals was 20 - 30 nm. Sorption of the As to the Fe-Mn binary oxide reached equilibrium in less than 180 s, which is much faster than pure MnO2 and amorphous iron manganese binary oxide. The adsorption isotherm agreed well with the Freundlich adsorption model with adsorption capacities of 26.5 mg/g, when the equilibrium concentration was 34.5 mg/L. The effect of temperature revealed that the adsorption of As was exothermic, and the adsorption decreased with increasing temperature from 20 degrees C to 70 degrees C. The removal percentage of As by Fe-Mn binary oxide reached 100% from aqueous solution at pH 4.0 - 6.0. The Fe-Mn binary oxide nano-flowers are a potential highly efficient nanomaterial for removal of As from water.
语种：
英文
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土壤性质对烟叶中铅、镉含量的影响及预测模型研究
作者：
胡鑫;罗真华;谢会雅;周毅;晏哲;...
期刊：
农业环境科学学报 ,2016年35(3):449-454 ISSN：1672-2043
作者机构：
湖南农业大学资源环境学院, 长沙, 410128;湖南省烟草公司株洲市公司, 湖南, 株洲, 412000;[胡鑫; 晏哲; 彭亮; 曾清如] 湖南农业大学资源环境学院, 长沙, 410128;[罗真华; 谢会雅; 周毅] 湖南省烟草公司株洲市公司, 湖南, 株洲, 412000
关键词：
烟叶;铅;镉;土壤性质;预测
摘要：
在湖南某植烟区采集代表性的土壤和烟叶样品112个,测定了土壤理化性质和样品的铅、镉含量,并通过相关性和回归分析来研究烟叶铅、镉含量与土壤因子关系。结果表明:研究区土壤Pb、Cd全量平均值为40.91、0.37 mg·kg~(-1),Pb、Cd有效态平均值分别为10.71、0.23 mg·kg~(-1),烟叶Pb、Cd含量分别为3.86、7.55 mg·kg~(-1);烟叶Pb、Cd的富集系数分别为0.094和19.84,对比富集系数可知,植烟区烟叶镉的健康风险要大于铅。相关性分析表明:烟叶中Pb与土壤Pb全量、Pb有效态含量呈正相关,与pH值呈负相关;烟叶Cd与土壤Cd全量、Cd有效态含量、有机质含量和氯离子量呈正相关,与pH值负相关。通过数据逐步回归得到的方程为lgY_(tobac-Pb)=0.806lgX_(soilPb)-0.314pH-0.020(R~2=0.499)、lgY_(tobac-Cd)=0.877X_(soilCd)-0.302pH~+0.465lgX_(OM)+1.632(R~2=0.561),回归方程对烟叶中Pb、 Cd的预测达到极显著水平。
语种：
中文
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