作者： Wang, Xinqi;Deng, Sihan;Zhou, Yimin;Long, Jiumei;Ding, Dan;...

期刊： Environmental Science and Pollution Research,2021年28(7):7828-7839 ISSN：0944-1344

通讯作者： Lei, Ming

作者机构： [Long, Jiumei; Du, HuiHui; Tie, Bai Qing; Wang, Xinqi; Ding, Dan; Chen, Congying; Deng, Sihan; Lei, Ming; Zhou, Yimin] Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Peoples R China.;[Long, Jiumei] Hengyang Normal Univ, Coll Environm & Life Sci, Hengyang 421001, Peoples R China.

通讯机构： [Lei, Ming] H;Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Peoples R China.

关键词： Foliar application;Iron fertilization;Chelated iron;Photosynthesis;Antioxidant enzyme;Cadmium accumulation

摘要： Iron (Fe) fertilizer can reduce cadmium (Cd) uptake and toxicity in rice, but the underlying mechanisms of Cd mitigation by different fertilizers are poorly understood. Here, pot experiments in rice were conducted to characterize the effects of four types of foliar-applied Fe fertilizer (chelated ferrous Fe, ferric Fe, ionic ferrous Fe, and ferric Fe) at three doses (20, 50, and 100mgL−1) on photosynthetic capacity, antioxidant ability, yield, and Cd accumulation in Cd-contaminated soil. The results showed that foliar Fe application increased the net photosynthesis rate by 19.3%, peroxidase (POD) by 18.2%, superoxide dismutase (SOD) by 26.9%, and catalase (CAT) by 19.6%, and led to a 7.2% increase in grain yield compared with the control. Moreover, foliar Fe application significantly reduced Cd accumulation by 15.9% in brown rice and decreased the translocation of Cd from roots to other plant tissues. Overall, application of moderate doses (50mgL−1) of chelated ferrous Fe was the most effective method for reducing Cd uptake (decreasing the Cd concentration in brown rice by 29.0%) and toxicity in rice (decreasing malondialdehyde by 23.2% and increasing POD, SOD, and CAT by 54.4%, 51.6%, and 45.7%, respectively), which may stem from the fact that chelated ferrous Fe was a more stable and bioavailable source of Fe for rice. The Cd concentration in rice had negative relationship with Fe concentration, and the translocation of Cd from root to the other tissues was reduced by the higher Fe nutrition status in leaf, suggesting that a high Fe supply may decrease Cd content by inhibiting the expression of the Fe transport system. These results indicate that foliar application of chelated ferrous Fe provides a promising alternative approach for enhancing growth and controlling Cd accumulation in rice plants. Furthermore, these results advance our understanding of the associations between plant Fe nutrition status and Cd accumulation. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.

语种： 英文

作者： Li, Bingyu;Wei, Dongning;Li, Zhuoqing;Zhou, Yimin;Li, Yongjie;...

期刊： Journal of Hazardous Materials,2020年389:122091 ISSN：0304-3894

通讯作者： Lei, Ming

作者机构： [Tie, Baiqing; Li, Yongjie; Li, Bingyu; Wei, Dongning; Li, Zhuoqing; Lei, Ming; Zhou, Yimin; Huang, HongLi] Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Peoples R China.;[Tie, Baiqing; Li, Yongjie; Li, Bingyu; Wei, Dongning; Li, Zhuoqing; Lei, Ming; Zhou, Yimin] Hunan Engn & Technol Res Ctr Irrigat Water Purifi, Changsha 410128, Peoples R China.;[Tie, Baiqing; Li, Yongjie; Li, Bingyu; Wei, Dongning; Li, Zhuoqing; Lei, Ming; Zhou, Yimin] Prov Key Lab Rural Ecosyst Hlth Dongting Lake Are, Changsha 410128, Hunan, Peoples R China.;[Huang, Changhong] China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China.;[Long, Jiumei] Hengyang Normal Univ, Coll Life Sci & Environm, Hengyang 421008, Peoples R China.

通讯机构： [Lei, Ming] H;Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Peoples R China.

关键词： *Adsorption;*Degradation;*Roxarsone (ROX);*Synergistic removal;*nZVI

摘要： Roxarsone is a phenyl-substituted arsonic acid comprising both arsenate and benzene rings. Few adsorbents are designed for the effective capture of both the organic and inorganic moieties of ROX molecules. Herein, nano zerovalent iron (nZVI) particles were incorporated on the surface of sludge-based biochar (SBC) to fabricate a dual-affinity sorbent that attracts both the arsenate and benzene rings of ROX. The incorporation of nZVI particles significantly increased the binding affinity and sorption capacity for ROX molecules compared to pristine SBC and pure nZVI. The enhanced elimination of ROX molecules was ascribed to synergetic adsorption and degradation reactions, through pi-pi* electron donor/acceptor interactions, H-bonding, and As-O-Fe coordination. Among these, the predominate adsorption force was As-O-Fe coordination. During the sorption process, some ROX molecules were decomposed into inorganic arsenic and organic metabolites by the reactive oxygen species (ROS) generated during the early stages of the reaction. The degradation pathways of ROX were proposed according to the oxidation intermediates. This work provides a theoretical and experimental basis for the design of adsorbents according to the structure of the target pollutant.

语种： 英文

作者： 邓思涵;龙九妹;陈聪颖;周一敏;李永杰;...

期刊： 中国农学通报,2020年36(01):1-5 ISSN：1000-6850

作者机构： 湖南农业大学资源环境学院,长沙410128;衡阳师范学院生命科学与环境学院,湖南衡阳421000;[龙九妹; 雷鸣; 李永杰; 陈聪颖; 周一敏; 邓思涵] 湖南农业大学

关键词： 叶面肥;水稻;镉;水稻叶片;阻控;营养吸收

摘要： 为探究不同叶面肥阻控水稻富集镉的机制,以期为解决农田重金属镉污染和食品安全问题提供科学的依据.本研究归纳了镉对水稻的生长危害,水稻叶与叶面肥的特征包括水稻叶与水稻的养分吸收、叶面肥的种类、叶面肥的特点及叶面肥阻控水稻富集镉的机理.指出影响叶面肥阻控水稻富集镉的效果因素,如天气、温度、利用率、喷施次数和浓度等,提出与其他阻控措施相结合、开展其他种类叶面肥研究、继续叶面肥理论基础研究及加强统一管理和规范操作技术等一系列展望.

语种： 中文

作者： Long, Jiumei;Zhou, Dongsheng;Li, Bingyu;Zhou, Yimin;Li, Yongjie;...

期刊： Environmental Pollution,2020年258:113670 ISSN：0269-7491

通讯作者： Lei, Ming

作者机构： [Long, Jiumei; Zhou, Dongsheng] Hengyang Normal Univ, Coll Life Sci & Environm, Hengyang 421008, Peoples R China.;[Li, Yongjie; Li, Bingyu; Lei, Ming; Zhou, Yimin] Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Peoples R China.;[Li, Yongjie; Li, Bingyu; Lei, Ming; Zhou, Yimin] Hunan Engn Res Ctr Safe & High Efficient Utilizat, Changsha 410128, Peoples R China.

通讯机构： [Lei, Ming] H;Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Peoples R China.

关键词： Antimony resistant bacteria;Iron plaque fraction;Rice plants;Sb uptake;Sb(III) and Sb(V)

摘要： Main findings: The Sb resistant bacterium impacted the fraction and quantity of IP on rice roots, and it decreased the Sb concentrations in rice shoots. © 2019 Elsevier LtdIron plaque (IP) is crucial in mitigating antimony (Sb) uptake and accumulation in rice plants, while, few studies focused on the effect of the iron plaque-associated Sb resistant bacteria on IP and Sb uptake into rice plants. Here, the effect of a Sb resistant bacterium (GenBank accession No. MH345840, with potential of conversion soluble Sb(III) into insoluble Sb2O3) on IP and Sb(III)/Sb(V) uptake under hydroponic condition was investigated. The results showed that in the presence of Sb(III), a large quantity of bacterial cells consorted with IP on rice roots, the bacterial inoculum altered the IP fraction distribution without enhancing its amount. However, it reduced Sb(III) uptake into rice roots. On contrary, seldom bacterial cells associated with the IP on rice roots in the presence of the Sb(V), the bacterial inoculum increased the IP amount slightly, and did not decline the Sb(V) uptake into rice roots. It also showed that the bacterial inoculum decreased Sb concentrations in rice shoots greatly in both Sb(III) and Sb(V) supplied treatments. © 2019 Elsevier Ltd

语种： 英文

作者： Yi, Zhengji;Liu, Jian*;Zeng, Rongying;Liu, Xing;Long, Jiumei;...

期刊： Water Science and Technology,2020年82(11):2592-2602 ISSN：0273-1223

通讯作者： Liu, Jian

作者机构： [Liu, Xing; Liu, Jian; Zeng, Rongying; Yi, Zhengji] Heyang Normal Univ, Key Lab Funct Metal Organ Cpds Hunan Prov, Coll Chem & Mat Sci, Hengyang 421008, Peoples R China.;[Liu, Xing; Liu, Jian; Zeng, Rongying; Yi, Zhengji] Heyang Normal Univ, Key Lab Funct Organometall Mat, Coll Hunan Prov, Coll Chem & Mat Sci, Hengyang 421008, Peoples R China.;[Long, Jiumei; Huang, Binyan] Hengyang Normal Univ, Coll Life Sci & Environm, Hengyang 421008, Peoples R China.

通讯机构： [Liu, Jian] H;Heyang Normal Univ, Key Lab Funct Organometall Mat, Coll Hunan Prov, Coll Chem & Mat Sci, Hengyang 421008, Peoples R China.

关键词： activated carbon;adsorption;Camellia oleifera shell;uranium

摘要： Camellia oleifera shell-based activated carbon (COSAC) was prepared by H3PO4 activation method and further used to remove U(VI) from the aqueous solution in a batch system. This research examined the influence of various factors affecting U(VI) removal, including contact time, pH, initial U(VI) concentration, and temperature. The results showed that the U(VI) adsorption capacity and removal efficiency reached 71.28 mg/g and 89.1% at the initial U(VI) concentration of 160 mg/L, temperature of 298 K, pH 5.5, contact time of 60 min, and COSAC dosage of 2.0 g/L. The pseudo-first-order, pseudo-second-order, and intraparticle diffusion equations were used to identify the optimum model that can describe the U(VI) adsorption kinetics. The pseudo-second-order kinetics model performed better in characterizing the adsorption system compared with the pseudo-first-order and intraparticle diffusion models. Isotherm data were also discussed with regard to the appropriacy of Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich models. The Langmuir model described the U(VI) adsorption process the best with a maximum adsorption capacity of 78.93 mg/g. Thermodynamic analysis (Delta G(0) < 0, Delta H-0 > 0, and Delta S-0 > 0) indicated that the U(VI) adsorption process is endothermic and spontaneous. All the results imply that COSAC has a promising application in the removal or recovery of U(VI) from aqueous solutions.

语种： 英文

作者： Tang, Lin;Deng, Sihan;Tan, Di;Long, Jiumei*;Lei, Ming*

期刊： Environmental Science and Pollution Research,2019年26(17):17655-17665 ISSN：0944-1344

通讯作者： Long, Jiumei;Lei, Ming

作者机构： [Long, Jiumei; Lei, Ming; Tang, Lin; Deng, Sihan; Tan, Di] Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.;[Long, Jiumei] Hengyang Normal Univ, Coll Life Sci & Environm, Hengyang 421008, Hunan, Peoples R China.

通讯机构： [Long, JM; Lei, M; Long, Jiumei] H;Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.;Hengyang Normal Univ, Coll Life Sci & Environm, Hengyang 421008, Hunan, Peoples R China.

关键词： Dongting Lake area;Geoaccumulation index;Health risk assessment;Heavy metal pollution;Soil-rice system;Translocation

摘要： Heavy metals including copper (Cu), zinc (Zn), cadmium (Cd), chromium (Cr), lead (Pb), and arsenic (As) were investigated in 89 pairs of rice plant and paddy soils around Dongting Lake area, China. Rice plants and soils were collected with GPS device, and heavy metal contents in different rice plant tissues and soils were measured. The aim of the present study was to assess the heavy metal pollution and translocation in the whole soil-rice system, including the consequent human health risk for residents. According to the indices of average geoaccumulation (Igeo) of the studied elements, paddy soils in study area were moderately polluted by Cd, lowly polluted by Pb, and not polluted by Cu, Zn, Cr, and As. Considering the much higher concentrations of studied elements in roots than in other tissues of rice plants, a great mass of these elements was assumed to be confined in the roots. The low translocation factors from root to shoot (Tfroot-shoot) of all the studied heavy metals (0.04–0.74) underpinned this. The high translocation factors from soil to root (Tfsoil-root) of Cd (9.12), As (4.38), and Zn (2.05) indicated the high bioavailability of these heavy metals for rice plant. The health risk assessment using target hazard quotients (THQs) model indicated that Cd (5.17 for adults and 4.49 for children respectively) and As (3.61 for adults and 3.14 for children respectively) could cause human health risk both for adults and children. Further, given the rate of individual THQ values exceeding one, Cu might also be considered as a potential human health dangerous element in the study area. It was worth noting that as one of the main pollutants, Pb did not show human health risk through rice grain consumption due to its low Tf values in soil-rice system. However, the risk identification of As using comparisons of measured concentrations with risk screening value in Chinese paddy soil standard (GB15618-2018) was not consistent with the human health risk assessment result. This might indicate that site-specific risk screening values of As in China is in demand. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.

语种： 英文

作者： 邓思涵;龙九妹;陈聪颖;严冬;余嘉衍;...

期刊： 湖南农业科学,2019年(02):24-28 ISSN：1006-060X

作者机构： 湖南农业大学资源环境学院,湖南 长沙,410128;湖南农业大学资源环境学院,湖南 长沙 410128;衡阳师范学院生命科学与环境学院,湖南 衡阳 421000;[余嘉衍; 龙九妹; 雷鸣; 李永杰; 严冬; 陈聪颖; 周一敏; 邓思涵] 湖南农业大学

关键词： 水稻叶;镉污染;稻米;叶面肥;产量;阻控

摘要： 为了探究水稻叶中镉含量与糙米中镉含量的关系,以及施加不同叶面肥对水稻产量及稻米中镉含量的影响,在湖南省株洲县某镉污染区随机采集水稻样品进行分析,并在该地选择镉污染稻田开展4种不同叶面肥(Ca肥、Si肥、N肥和Fe肥)的阻控水稻富集镉的试验.结果表明:随机采集的水稻植株中镉含量的分布是根>茎>籽粒,叶中镉含量的分布是第一叶>第二叶>第三叶>第四叶及其他叶,水稻叶中镉含量与糙米中镉含量呈显著正相关,其中第一叶中镉含量与糙米中镉含量之间的相关性达到0.8578.与对照相比,施加不同叶面肥后,水稻明显增产8.14％～27.27％,其中施加叶面Fe肥水稻增产效果最明显.在4种叶面肥的不同浓度处理下,降低糙米中镉含量效果顺序是低浓度>中浓度>高浓度,当叶面肥低浓度处理时,Si肥阻控稻米富集镉效果最佳,达到57.14％;其次是Ca肥和Fe肥,分别达38.78％ 和32.66％;N肥的降镉率为16.33％.

语种： 中文

作者： 易诚;王晶;龙九妹

期刊： 大学教育,2019年(1):40-42 ISSN：2095-3437

作者机构： 衡阳师范学院生命科学与环境学院,湖南 衡阳,421008;[龙九妹; 易诚; 王晶] 衡阳师范学院

关键词： 环境影响评价;在线开放课程;课程建设;SWOT分析

摘要： 根据高校在线开放课程发展需要及环境影响评价课程教学的特点,通过对建设环境影响评价在线开放课程进行SWOT分析,得出以知名环评教授为顾问,市、县环保局相关领导作指导,从事环境影响评价文件撰写和项目评审的专家为教师,以环评工作流程为导向,以环评工作内容为模块,建立集模块、案例、视频为一体,实施线上线下相结合,建设好环境影响评价在线开放课程。

语种： 中文

作者： Long, Jiumei;Tan, Di;Deng, Sihan;Li, Bingyu;Ding, Dan;...

期刊： Environmental Pollution,2019年249(Jun.):414-422 ISSN：0269-7491

通讯作者： Lei, Ming

作者机构： [Long, Jiumei; Li, Bingyu; Ding, Dan; Deng, Sihan; Lei, Ming; Tan, Di] Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.;[Long, Jiumei] Hengyang Normal Univ, Coll Life Sci & Environm, Hengyang 421008, Peoples R China.;[Long, Jiumei; Li, Bingyu; Ding, Dan; Deng, Sihan; Lei, Ming; Tan, Di] Hunan Engn Res Ctr Safe & High Efficient Utilizat, Changsha 410128, Hunan, Peoples R China.

通讯机构： [Lei, Ming] H;Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.

关键词： Accumulation;Growth stage;Human health risk;Iron plaque;Rice;Sb(III) and Sb(V)

摘要： To better understand the Sb phytoavailability in rice, we studied Sb accumulation in rice (Zhongjiazao-17, widely cultivated in Hunan province) at different growth stages based on adding SbIII and SbV to waterlogged soils in 10, 50 and 100 mg kg−1 treatment levels. Proportional exogenous SbIII and SbV remained in the soil solution after equilibration. In SbIII treatments, the iron plaque (IP) amounts and Sb in rice roots sharply increased from tillering to jointing stages and then reduced at the following stages. However, in SbV treatments, they increased continuously from tillering to maturing stages. The accumulation trends of Sb in straws, ears and grains were consistent in SbIII and SbV treatments, rising from tillering to jointing stages followed with reducing from jointing to flowering stages slightly, and rising again significantly from flowering to maturing stages. The Tfsoil-grain values in all the Sb treatments were low (0.77 × 10−3-5.1 × 10−3), However, when Sb in waterlogged soils were higher than 50 mg kg−1, it could pose human health risk for residents. Proportional of SbIII and SbV still remained in soil solutions; The Sb accumulation trends at different rice growth stages were various. © 2019 Elsevier Ltd

语种： 英文

作者： 邓思涵;陈聪颖;严冬;龙九妹;丁丹;...

期刊： 中国稻米,2019年25(4):27-30 ISSN：1006-8082

作者机构： 湖南农业大学资源环境学院,长沙,410128;湖南农业大学资源环境学院,长沙410128;衡阳师范学院生命科学与环境学院,湖南衡阳421000;[龙九妹; 雷鸣; 严冬; 陈聪颖; 丁丹; 邓思涵] 湖南农业大学

关键词： 水稻;重金属污染;阻控技术

摘要： 小结了水稻重金属污染的研究现状及水稻受害后的症状,对污染水稻的重金属的来源进行了探讨,阐述了阻控水稻富集重金属的措施,包括钝化技术、叶面肥阻控、水稻品种筛选和农艺措施等,并对今后如何阻控水稻富集重金属进行了展望。

语种： 中文

作者： Long, Jiumei;Tan, Di;Deng, Sihan;Lei, Ming*

期刊： Human and Ecological Risk Assessment,2018年24(3):679-690 ISSN：1080-7039

通讯作者： Lei, Ming

作者机构： [Long, Jiumei; Deng, Sihan; Lei, Ming; Tan, Di] Hunan Agr Univ, Coll Resources & Environm, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.;[Long, Jiumei] Hengyang Normal Univ, Coll Environm & Life Sci, Hengyang, Hunan, Peoples R China.

通讯机构： [Lei, Ming] H;Hunan Agr Univ, Coll Resources & Environm, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.

关键词： antimony;ecological risk assessment;heavy metal pollution;soil;xikuangshan

摘要： Xikuangshan is located in Lengshuijiang City, Hunan province, China. With intensive mining and metallurgical activities, large amounts of tailing containing heavy metals (in this study, the term “heavy metals” is used for both metals and metalloids) were introduced to the soils around the mine area. Those heavy metals including antimony and other heavy metals would pose huge risk to human health and ecological environment. With a view to providing information on the extent of contamination and potential ecological risk of heavy metals in the soils of this mine area, the total contents of antimony (Sb), manganese (Mn), zinc (Zn), arsenic (As), cadmium (Cd), and lead (Pb) in the soils were examined. The results revealed that the predominant pollutants in this area were Sb, Cd, and Zn with mean concentrations being 356.58, 9.98, and 486.42 mg kg−1, 119.66, 117.41, and 5.17 times of the corresponding background values respectively. The pollution indices (Ps) indicated that the pollution levels of all sampling zones were serious including the control zones. The ecological risk levels of all heavy metals were very high on all the sampling zones except sampling zone 7 (as considerable), and Sb, Cd, and As were regarded as making great contribution to the risk indices (RI). © 2018 Taylor & Francis Group, LLC.

语种： 英文

作者： Long, Jiumei;Tan, Di;Deng, Sihan;Lei, Ming*

期刊： Environmental Geochemistry and Health,2018年40(6):2383-2394 ISSN：0269-4042

通讯作者： Lei, Ming

作者机构： [Long, Jiumei; Deng, Sihan; Lei, Ming; Tan, Di] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.;[Long, Jiumei] Hengyang Normal Univ, Coll Life Sci & Environm, Hengyang 421008, Hunan, Peoples R China.;[Long, Jiumei; Lei, Ming] Hunan Agr Univ, Coll Biosci & Biotechnol, Hunan Prov Key Lab Rural Ecosyst Hlth Dongting Hl, Changsha 410128, Hunan, Peoples R China.

通讯机构： [Lei, Ming] H;Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.

关键词： Multi-heavy metal pollution;Potentially toxic elements;Phytostabilization;Heavy metal tolerance;Bioconcentration;Biodistribution

摘要： To provide information on reclamation of multi-heavy metal polluted soils with conception of phytostabilization, a field survey on the uptake and accumulation of potentially toxic elements such as antimony (Sb), arsenic (As), lead (Pb), cadmium (Cd), copper (Cu), and zinc (Zn) in colonized plant species around the world’s largest antimony mine area, China, was conducted. Samples including leaves and shoots (including roots and stems) of colonized plants as well as rhizospheric soils were collected from eight sampling zones in the studied area. The results showed that the contents of Cu, Zn, and Pb in rhizospheric soils below plants were comparable to the corresponding background values of Hunan province, otherwise Sb, Cd, and As contents were extremely high (17–106, 17–87, and 3–7 times of the corresponding background values). The highest concentration of Sb was found in Aster subulatus (410 mg kg −1 ); Cd, As, and Zn were in Herba bidentis bipinnatae (10.9, 264, and 265 mg kg −1 , respectively); and Cu was in Artemisia lavandulaefolia (27.1 mg kg −1 ). It also exhibited that all the contents of As in leaves were several times of those in shoots of plants, Cd and other heavy metals showed in a similar pattern in several studied species, implying that the uptake route of these heavy metals via foliar might contribute to the accumulation. With high bioconcentration factors of heavy metals (more than 1, except for Zn), together with the growth abundance, Herba bidentis bipinnatae was considered as the most suitable colonized species for phytostabilization of the multi-heavy metal pollution in soils on this antimony mine area. © 2018, Springer Science+Business Media B.V., part of Springer Nature.

语种： 英文

发明/设计人： 易诚;邓景衡;湛含辉;龙九妹;罗远来;...

申请/专利权人： 衡阳师范学院

申请/专利号： CN201710950510.9

申请时间： 2017-10-13

公开号： CN107601656A

公开时间： 2018-01-19

主申请人地址： 421002 湖南省衡阳市珠晖区衡花路16号

摘要： 本发明公开了一种连续培养好氧颗粒污泥与处理污水的连续二次流混凝气提流床反应器，所述反应器主体部分由内外两个圆柱形有机玻璃制成，包括流化区（14）、水粒分离区（20）、回流室(13)、沉降区（2）共四个区。利用造粒颗粒污泥采用本发明提供的二次流气提流化床，快速培养颗粒污泥，大大缩短好氧颗粒污泥的形成时间，在造粒颗粒污泥的好氧培养过程中具有良好的污水处理效果，实现边培养边处理的目的，缩短颗粒污泥启动所需要的时间。

作者： 易诚;何诗雅;邓景衡;龙九妹

期刊： 湖南生态科学学报,2018年5(1):22-27 ISSN：2095-7300

作者机构： 衡阳师范学院 生命科学与环境学院,湖南 衡阳,421008;[龙九妹; 邓景衡; 易诚; 何诗雅] 衡阳师范学院

关键词： 活性污泥;造粒颗粒;好氧培养;特性研究

摘要： 为了探究污泥造粒颗粒在曝气中培养过程中形态、粒径、含水率、污泥沉降比(SV)、污泥体积指数(SVI)、悬浮物固体含量(MLSS)的变化,以污水处理厂活性污泥为材料,进行人工造粒,对造粒颗粒进行好氧培养.结果表明:培养20 d,颗粒污泥粒径由450.21 μm增加到598.60 μm,MLSS由5373.01 mg/L上升到5576.02 mg/L,颗粒污泥的SV由24.31%下降到19.31%;SVI由45.23 mg/L下降到37.41 mg/L;含水率由96.10%下降到95.19%.说明污泥造粒颗粒在曝气中培养过程中稳定性增强.

语种： 中文

作者： 龙九妹;滕涛;刘建晖;周东升

期刊： 南方农业学报,2017年48(7):1225-1230 ISSN：2095-1191

作者机构： [龙九妹; 滕涛; 刘建晖; 周东升] 衡阳师范学院生命科学与环境学院, 湖南, 衡阳, 421008

关键词： 小菜粉蝶幼虫;植物叶片汁液;栓锥感受器;味觉神经元;电生理顶端记录

摘要： 【目的】探讨小菜粉蝶幼虫对2种寄主植物(甘蓝和旱金莲)叶片汁液的行为及电生理反应,为阐明植食性昆虫寄主植物选择机制提供一定的理论依据。【方法】小菜粉蝶幼虫孵化后饲养在甘蓝叶片上,选用进入5龄24~48 h的小菜粉蝶幼虫供试;植物叶片榨出汁液,用行为试验双选法测试幼虫对汁液的行为反应,用顶端记录法测试幼虫侧栓锥和中栓锥味觉感受器对汁液的电生理反应。【结果】行为试验结果表明,甘蓝饲养小菜粉蝶幼虫取食含有甘蓝叶片汁液的玻璃纤维滤纸圆片极显著多于取食含有旱金莲叶片汁液的圆片(P<0.001)。电生理试验表明,侧栓锥味觉感受器对2种叶片汁液的电生理反应均显著强于中栓锥味觉感受器(P<0.01),且侧栓锥味觉感受器对旱金莲叶片汁液的电生理反应显著强于甘蓝叶片汁液(P<0.01),而中栓锥味觉感受器的反应对两者无显著差异(P>0.05);侧栓锥味觉感受器有3个味觉神经元对叶片汁液有反应,中栓锥味觉感受器只有2个味觉神经元对叶片汁液有反应,且侧栓锥味觉感受器中味觉神经元1和神经元2对旱金莲叶片汁液的反应频率极显著强于对甘蓝叶片汁液的反应频率(分别为P< 0.01和P<0.001),味觉神经元3对两者反应无显著差异(P>0.05);中栓锥味觉感受器中味觉神经元1和神经元2对旱金莲叶片汁液和对甘蓝叶片汁液的反应频率则无显著差异(P>0.05)。【结论】甘蓝饲养小菜粉蝶幼虫对旱金莲叶片汁液有拒食行为,这种拒食行为与侧栓锥味觉感受器中相关味觉神经元的激活有关。小菜粉蝶幼虫侧栓锥味觉感受器对2种寄主植物叶片的反应均显著强于中栓锥味觉感受器,说明在对寄主植物的探测上侧栓锥味觉感受器可能起到更重要的作用。

语种： 中文

作者： 易诚;周雅雯;邓景衡;龙九妹

期刊： 湖南生态科学学报,2017年4(3):15-18 ISSN：2095-7300

作者机构： 衡阳师范学院 生命科学与环境学院,湖南 衡阳,421001;[龙九妹; 邓景衡; 易诚; 周雅雯] 衡阳师范学院

关键词： 生物絮凝剂;浊度

摘要： 为充分利用剩余污泥,利用碱法从污水处理厂二沉池取回的沉降污泥提取生物絮凝剂,以浊度及COD去除率参考,通过生物絮凝剂的投加量(A)、搅拌速度(B)、搅拌时间(C)、污泥浓度(D)4个因素进行正交试验,结果表明:浊度去除试验中,正交表最大去除率63.21%,最佳组合A2B1C3D1浊度去除率可达66.71%,COD去除率为61.13%;COD去除试验中,正交表最大去除率71.20%,最佳组合A3B3C2D3COD去除率可达75.57%,浊度去除率为60.48%.说明活性污泥提取生物絮凝剂具有较理想的絮凝效果,可以推广应用.表4,参15.

语种： 中文

作者： 周东升;邬欢;龙九妹

期刊： 衡阳师范学院学报,2017年38(06):105-107 ISSN：1673-0313

作者机构： 衡阳师范学院生命科学与环境学院,湖南 衡阳,421008;[龙九妹; 周东升; 邬欢] 衡阳师范学院

关键词： 噪音干扰;小鼠;体重;记忆能力;Y型迷宫

摘要： 通过模拟嘈杂噪音环境,探讨噪音干扰对小鼠学习及记忆能力的影响。实验选取60只昆明小鼠,随机分为对照组和实验组3组（分别为噪音处理5天,10天,15天）,每组15只。噪音处理后,测定体重及通过Y型迷宫测定小鼠的记忆能力。结果表明噪音处理5天后小鼠体重和记忆能力无显著变化（P>0.05）;噪音处理10天后体重显著降低（P<0.05）,记忆能力显著降低（P<0.05）;噪音处理15天后体重显著降低（P<0.05）,记忆能力极显著降低（P<0.01）。结论为长时间的噪音可使小鼠体重,记忆能力显著降低。

语种： 中文

作者： 易诚;杨杰;邓景衡;龙九妹

期刊： 衡阳师范学院学报,2017年38(06):111-115 ISSN：1673-0313

作者机构： 衡阳师范学院生命科学与环境学院,湖南 衡阳,421002;[龙九妹; 邓景衡; 易诚; 杨杰] 衡阳师范学院

关键词： 养殖废水;污泥颗粒;SBR工艺;生活污水

摘要： 为快速培养出好养颗粒污泥,利用人工造粒的方法将养殖废水污泥制成造粒污泥,以COD、氨氮、TP处理效果为参数,通过厌氧时间、曝气时间、缺氧时间、沉淀时间正交试验优化,研究SBR工艺处理生活废水效果。结果表明:以COD为参照最优组合为A2B1C2D3;以氨氮为参照的最优组合为A1B2C1D3;以总磷为参照的最优组合为A1B2C2D2.进一步验证结果表明最佳运行参数为:厌氧2h、曝气4h、缺氧1.5h、沉淀1.5h,周期时间为9.0h,在此工况下,氨氮去除率达82.63%以上,TP去除率达82.45%以上,COD去除率为57.14%以上,说明养殖废水造粒污泥处理生活废水是可行的。

语种： 中文

作者： 易诚;龙九妹

期刊： 衡阳师范学院学报,2016年37(03):144-148 ISSN：1673-0313

作者机构： 衡阳师范学院 生命科学与环境学院,湖南 衡阳,421008;[龙九妹; 易诚] 衡阳师范学院

关键词： 环境工程专业;师范院校;SWOT分析

摘要： 为办好师范院校的环境工程专业，通过 SWOT分析的方法，结果表明：优势在于环境问题需要更多的环境工程专业人才，劣势在于师范院校传统办学理念及学生实习与就业等，机遇在于环保产业处于高速发展期，威胁来源于全国有近500所及湖南有近10所高校开设了环境工程专业。并提出了以生物为背景、以培养方案为纽带、以实践为基础、以创业为指导，构建具有生物特色的人才培养、教学与就业基地、创新创业能力工程专业培养体系。

语种： 中文

发明/设计人： 易诚;湛含辉;宾冬梅;龙九妹

申请/专利权人： 衡阳师范学院

申请/专利号： CN201610063109.9

申请时间： 2016-1-30

公开号： CN105692882A

公开时间： 2016-6-22

主申请人地址： 421002 湖南省衡阳市珠晖区衡花路16号

摘要： 本发明公开了一种连续培养好氧颗粒污泥与处理污水的连续二次流混凝气提流床反应器,反应器主体部分由内外两个圆柱形有机玻璃制成,包括以下四个区：其中由内部的圆柱形有机玻璃构成混凝区,外部圆柱形有机玻璃内壁与内圆柱形有机玻璃外壁间构成流化区、流化区下方通过隔板分离成沉降区、流化区上方通过分离斜板分离成分离区。本发明具有集成作用,将常规的一级、二级处理强化在一个处理单元中进行,#混凝强化培养好氧颗粒污比常规的SBR可以缩短10天以上,连续培养可以规模化生产好氧颗粒污泥,利用连续流混凝气提流化床反应一方面可实现连续快速培养好氧颗粒污泥,同时实现良好污水处理效果,节约用地、节省能源原材料、有利于环保。