双向低频振动对铀尾矿库滩面覆土层控氡效果影响的试验研究
作者：
洪昌寿;徐雅洁;王琨婷;吕聪;尚璇;...
期刊：
南华大学学报(自然科学版) ,2021年35(04):15-21 ISSN：1673-0062
作者机构：
[徐雅洁; 尚璇; 王琨婷; 吕聪] 南华大学资源环境与安全工程学院;湖南省铀尾矿库退役治理技术工程技术研究中心;铀矿冶放射性控制技术湖南省工程研究中心;[汪弘; 兰明; 洪昌寿] 南华大学资源环境与安全工程学院<&wdkj&>湖南省铀尾矿库退役治理技术工程技术研究中心<&wdkj&>铀矿冶放射性控制技术湖南省工程研究中心
关键词：
铀尾矿库滩面;覆土层;双向低频振动;含水率;氡析出率
摘要：
双向低频振动引起铀尾矿库滩面覆盖层控氡效果劣化是其结构设计中应加以考虑的一项问题。以铀尾砂与本地红土为原材料,制备干燥、自然和饱和三种含水状态下铀尾矿库滩面覆土层试样,基于自制激振组合氡析出试验装置,开展双向低频振动下铀尾矿库滩面覆土层氡析出试验。结果表明,不同含水状态的铀尾矿库滩面覆土层在低频振动条件下,均大致呈现降氡效率随覆土厚度增加而增加的趋势,其中当覆土厚度为5 cm时,降氡效率分别为54.14%、50.32%、60.51%;当激振频率为10 Hz左右时,干燥、自然状态覆土表面氡析出率均达到峰值,分别为0.135 Bq/（m~2·s）、0.089 Bq/（m~2·s）,而饱和状态覆土表面氡析出率在15 Hz的低频振动条件下达到峰值0.118 Bq/（m~2·s）;双向低频振动对覆土层控氡效果的影响程度表现为:饱和状态＞干燥状态＞自然状态。
语种：
中文
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红壤覆盖层性状对铀尾矿库滩面氡析出影响的试验研究
作者：
王锦;刘永;章求才;洪昌寿;汪弘;...
期刊：
矿业研究与开发 ,2021年41(03):159-163 ISSN：1005-2763
作者机构：
[余忠凯] 南华大学资源环境与安全工程学院;湖南省铀尾矿库退役治理工程技术研究中心;铀矿冶放射性控制技术湖南省工程研究中心;[章求才; 汪弘; 王锦; 刘永; 洪昌寿] 南华大学资源环境与安全工程学院<&wdkj&>湖南省铀尾矿库退役治理工程技术研究中心<&wdkj&>铀矿冶放射性控制技术湖南省工程研究中心
关键词：
铀尾矿库滩面;氡析出率;红壤;压实度;覆盖层厚度
摘要：
为探究红壤覆盖层性状（厚度、压实度等）对铀尾矿库滩面氡析出的影响特征,以铀尾矿库为对象,选用红壤和南方某铀尾矿库的尾砂为样品,采用自制模拟滩面覆盖层氡析出试验装置,对覆盖层厚度、压实度与氡析出率的关系进行了研究。试验结果表明:在压实度均为0.56时,随着覆盖层厚度从0增加到20cm,表面氡析出率逐渐降低;相同质量的覆盖层随着压实度从0.56增加到0.93,表面氡析出率先缓慢降低后大幅度降低;随着覆盖层压实度的增加,降氡系数先缓慢增大后快速增大。因此,红壤覆盖层厚度、压实度的增加,可降低氡扩散系数,从而降低铀尾矿库滩面的氡析出率。
语种：
中文
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多相催化剂以非自由基路线活化过二硫酸盐的研究进展
作者：
罗才武;陈晴晴;张德;汪弘;魏月华
期刊：
工业催化 ,2021年29(03):11-15 ISSN：1008-1143
作者机构：
[汪弘; 魏月华; 陈晴晴; 张德] 南华大学资源环境与安全工程学院;中国科学院生态环境研究中心;中钢集团马鞍山矿山研究总院股份有限公司金属矿山安全与健康国家重点实验室;[罗才武] 南华大学资源环境与安全工程学院<&wdkj&>中国科学院生态环境研究中心<&wdkj&>中钢集团马鞍山矿山研究总院股份有限公司金属矿山安全与健康国家重点实验室
关键词：
催化化学;过二硫酸盐;金属氧化物;氮掺杂碳;有机污染物;非自由基
摘要：
多相催化剂以非自由基路线活化过二硫酸盐降解水中有机污染物,已成为近年来的研究热点。归纳非自由基路线活化过二硫酸盐的方式,重点介绍金属基催化剂和碳基催化剂活化过二硫酸盐的研究现状,评述其优缺点,为开发高效多相催化剂提供参考。
语种：
中文
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高校实验室安全标准化建设探索
作者：
汪弘;符芳慧;周超超;洪昌寿;伍玲玲
期刊：
科学咨询 ,2021年(06):114-116 ISSN：1671-4822
作者机构：
南华大学环境与安全工程学院;湖南省铀尾矿库退役治理工程技术研究中心 湖南衡阳 421001;[洪昌寿; 汪弘; 伍玲玲; 符芳慧; 周超超] 南华大学
关键词：
高校实验室;实验室安全建设;安全管理;标准化建设
摘要：
新时代的高等教育理念对实践教学和科研提出了更高的要求.实验室安全是重要的前提与保障,为确保实验室安全,实验室的标准化建设迫在眉睫.本文通过开展安全教育、安全管理、安全可视化、安全应急的建设探索,对高校实验室安全标准化建设进行了思考.
语种：
中文
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基于“6S”管理模式的化工类实验室管理应用研究
作者：
周超超;汪弘;张宇;彭莹
期刊：
广州化工 ,2021年49(03):132-134 ISSN：1001-9677
作者机构：
南华大学资源环境与安全工程学院,湖南 衡阳 421000;[汪弘; 彭莹; 张宇; 周超超] 南华大学
关键词：
化工类实验室;实验室管理;6S管理;高校
摘要：
高校的化工类实验室是进行科研和实践教学的重要场所,实验室里面拥有大量的危险化学品,是高校安全事故高发区域,当前的首要任务就是切实提高化工类实验室的管理水平并消除安全隐患。阐述了"6S"管理理念,提出了基于"6S"管理理念的化工类实验室管理新方法,将"6S"管理理念应用到化工类实验室的日常管理当中。实践表明,该管理模式明显改善了化工类实验室的实验环境,提高了使用效率和管理效率,有效地控制了安全隐患。
语种：
中文
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地层温度场下地下开采矿山斜坡道内氡运移数值模拟研究
作者：
汪弘;齐志扬;杨展康;洪昌寿;兰明;...
期刊：
南华大学学报(自然科学版) ,2021年35(05):40-44 ISSN：1673-0062
作者机构：
[杨展康; 廖雨航] 南华大学资源环境与安全工程学院;湖南省铀尾矿库退役治理技术工程技术研究中心;南华大学核科学与技术学院;[汪弘] 南华大学资源环境与安全工程学院<&wdkj&>湖南省铀尾矿库退役治理技术工程技术研究中心<&wdkj&>南华大学核科学与技术学院;[兰明; 齐志扬; 洪昌寿] 南华大学资源环境与安全工程学院<&wdkj&>湖南省铀尾矿库退役治理技术工程技术研究中心
关键词：
地层温度场;斜坡道;氡运移;数值模拟;伴生放射性矿
摘要：
开展伴生放射性矿的氡运移研究有利于开采过程中的氡污染治理,对矿山的安全生产有重要意义。引入温度梯度函数进行地层温度模拟,通过建立对流-扩散-衰变数学模型与斜坡道三维几何模型,对地层温度场下伴生放射性矿斜坡道进行了数值模拟研究,探索了地层温度场和通风流场对氡累积与运移的影响。研究表明:流场特征很大程度上决定氡浓度场的空间分布特征,而温度场同样也影响各区域的氡浓度大小。采用通风降氡时,流场中气流组织更好的区域氡浓度变化更大,地层温度场对硐室氡浓度影响更为敏感,本次模拟中温度升高1 K斜坡道氡浓度增加14.7 Bq/m~3,硐室增加约22.0 Bq/m~3。
语种：
中文
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高校工科专业青年教师成长的问题及对策
作者：
杨蓉;汪弘;蒋复量
期刊：
中国多媒体与网络教学学报：电子版 ,2019年(5S):106-107 ISSN：1673-2499
作者机构：
南华大学资源环境与安全工程学院;[汪弘; 杨蓉; 蒋复量] 南华大学
关键词：
高校;工科专业;青年教师;培养模式
摘要：
本文从工科专业的特点入手,强调其实践性和应用性。首先分析了青年教师在成长过程中存在的问题,而后针对问题和专业要求提出通过构建良好的培养模式,实现知识的内化与外化并在二者之间相互转化,从而促进青年教师的成长。
语种：
中文
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铀尾砂膏体充填材料的流动性能研究
作者：
冯胜洋;崔宇;许田贵;谭国炽;汪弘
期刊：
矿冶工程 ,2019年39(2):1-5 ISSN：0253-6099
作者机构：
南华大学环境与安全工程学院, 湖南, 衡阳, 421001;湖南省铀尾矿库退役治理工程技术研究中心, 湖南省铀尾矿库退役治理工程技术研究中心, 湖南, 衡阳, 421001;[汪弘; 许田贵; 谭国炽; 崔宇; 冯胜洋] 南华大学
关键词：
铀;铀尾砂;膏体充填;管道输送;流动性;坍落度;粘度
摘要：
对不同灰砂比、膏体浓度、减水剂含量的铀尾砂膏体充填材料进行了坍落度试验和粘度试验,并结合CFD方法对铀尾砂膏体充填材料流动性能进行了数值模拟研究。试验结果表明,铀尾砂膏体充填材料满足管道输送的最优配比为:质量浓度75%、灰砂配比1:5、减水剂含量0.6%~4.4%;最优配比下屈服应力53.96~131.38 Pa,塑性粘度0.866~1.325 Pa · s。数值模拟结果表明,铀尾砂膏体充填材料的管道阻力损失随质量浓度增加呈非线性增大,随流速增加呈线性增大,随管径增加呈非线性减小,随管道弯曲半径增加呈非线性减小。
语种：
中文
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基于工程教育认证的安全工程专业实践教学体系的改革与实施
作者：
蒋复量;雷林;谢超;罗润;洪昌寿;...
期刊：
科教导刊 ,2019年(8):98-100 ISSN：1674-6813
作者机构：
南华大学资源环境与安全工程学院 湖南·衡阳 421001;[徐守龙; 汪弘; 洪昌寿; 罗润; 雷林; 郭倩; 蒋复量; 谢超] 南华大学
关键词：
专业认证;安全工程;实践教学;教学体系
摘要：
实践教学是大学培养人才的重要环节,实践教学体系对于保障人才培养质量具有特殊作用。本文结合安全工程专业的实际情况,紧紧围绕工程教育认证通用标准和安全工程专业补充标准、结合实践教学中存在的问题,构建了安全工程专业实践教学体系。从反馈的情况来看,取得了较好的效果。
语种：
中文
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An integrated management system for occupational health and safety and environment in an operating nuclear power plant in East China and its management information system
作者：
Sui, Yang;Ding, Rui;Wang, Hanqing*
期刊：
Journal of Cleaner Production ,2018年183:261-271 ISSN：0959-6526
通讯作者：
Wang, Hanqing
作者机构：
[Sui, Yang; Wang, Hanqing] Univ South China, Sch Environm & Safety Engn, Hengyang 421001, Peoples R China.;[Ding, Rui; Sui, Yang] Fujian Fuqing Nucl Power Co Ltd, Fuqing 350300, Peoples R China.
通讯机构：
[Wang, Hanqing] U;Univ South China, Sch Environm & Safety Engn, Hengyang 421001, Peoples R China.
关键词：
Environmental management;Health;Industrial hygiene;Information analysis;Information dissemination;Information use;Integrated control;ISO Standards;Management information systems;Nuclear energy;Nuclear fuels;Nuclear power plants;Occupational risks;Browser/Server(B/S);Data and information;Environment management;Information sharing platforms;Integrated management systems;ISO 14001 certification;Management systems;Occupational health and safety;Information management
摘要：
In order to implement the integration management of the occupational health and safety and environment (OHSE) in an operating nuclear power plant (ONPP) in East China and help it pass the OHSAS 18001 and ISO 14001 certifications simultaneously rather than separately, an integrated management system (IMS) for OHSE in the ONPP consisting of the occupational health and safety and environment management manual (OHSEMM) and its supportive documents was established to cover the OHSAS 18001 and ISO 14001 standards and IAEA's safety standards on management systems. The management information system for the IMS for the ONPP in East China (MISIMSONPPEC) consisting of the core zone, which includes the information-sharing platform (ISP) and the functional management system (FMS), client and background system was designed for the first time by using browser/server (B/S) structure to overcome the difficulties in implementing the IMS. The applications of the MISIMSONPPEC in the ONPP show that it helped to share and statistically analyze the OHSE data and information from the IMS, to improve the cooperation between departments, to enhance the efficiency of management, and to pass the OHSAS 18001 and ISO 14001 certifications simultaneously rather than separately; and it helped accomplish the integration management of the OHSE in the ONPP. © 2018 Elsevier Ltd
语种：
英文
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Laboratory Experimental Laws for the Radon Exhalation of Similar Uranium Samples with Low-Frequency Vibrations
作者：
Cai, Zi-qi;Li, Xiang-yang* ;Lei, Bo* ;Yuan, Jing-fan;Hong, Chang-shou;...
期刊：
Sustainability ,2018年10(8):2937- ISSN：2071-1050
通讯作者：
Li, Xiang-yang;Lei, Bo
作者机构：
[Yuan, Jing-fan; Cai, Zi-qi; Li, Xiang-yang; Lei, Bo] Univ South China, Sch Environm & Safety Engn, Hengyang 421001, Peoples R China.;[Cai, Zi-qi; Hong, Chang-shou; Wang, Hong; Li, Xiang-yang] Univ South China, Hunan Prov Engn Technol Res Ctr Uranium Tailings, Hengyang 421001, Peoples R China.
通讯机构：
[Li, XY; Lei, B; Li, Xiang-yang] U;Univ South China, Sch Environm & Safety Engn, Hengyang 421001, Peoples R China.;Univ South China, Hunan Prov Engn Technol Res Ctr Uranium Tailings, Hengyang 421001, Peoples R China.
关键词：
uranium;similar materials;low-frequency vibration;radon exhalation rate;porosity
摘要：
It is the fact that there are lots of hazard incidents in underground uranium mines caused by radon but in-suit uranium samples were difficult to collect. Based on closed chamber method, three similar samples in different sealed ways were made in a laboratory with different material rations, namely uranium tailings, quartz sand, cement, iron powder and silicon powder to measure the radon concentrations with and without low-frequency vibrations, which was used by the experimental device for low-frequency vibration diffusion of radon. The results showed that the radon exhalation coming from the similar samples was influenced by the low frequency vibration; the results are presented as two-stage variations compared with the blank group. The radon exhalation increased with the rising vibration frequency when the frequency was 50 to 70 Hz, but fell slowly after reaching the peak radon exhalation rate. Analyses of the relations between the rock damage degree, changes in porosity and the occurrence of an inflection point in the radon exhalation rate in the samples found that they also increased when the frequency was between 0 to 80 in sample 3. The maximum porosity of the third samples was about 4.8% with a low-frequency vibration 60 Hz, while the maximum damage degree was about 0.07 at 50 Hz.
语种：
英文
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Laboratory Radioactive Protection and Safety Management
作者：
Wenfa Tan;Lei Ding;Xiangyang Li;Yu Zhang;Hong Wang
期刊：
IOP Conference Series: Earth and Environmental Science ,2018年170(3):032169 ISSN：1755-1307
通讯作者：
Tan, W.
作者机构：
[Ding L.; Li X.; Zhang Y.; Wang H.] School of Environmental Protection and Safety Engineering, University of South China, Hengyang, 421001, China;Key Laboratory of Radioactive Waste Treatment and Disposal, University of South China, Hengyang, 421001, China;[Tan W.] School of Environmental Protection and Safety Engineering, University of South China, Hengyang, 421001, China<&wdkj&>Key Laboratory of Radioactive Waste Treatment and Disposal, University of South China, Hengyang, 421001, China
通讯机构：
School of Environmental Protection and Safety Engineering, University of South China, Hengyang, China
会议名称：
2018 2nd International Symposium on Resource Exploration and Environmental Science, REES 2018
会议时间：
28 April 2018 through 29 April 2018
关键词：
Laboratories;Laws and legislation;Natural resources exploration;Pollution control;Safety engineering;Sustainable development;Environmental pollutions;National laws;Protection and management;Radiation safety;Safety management;Radioactivity
摘要：
In order to strengthen the safety management of radioactive laboratories, ensure the safety of laboratory radioactive protection and management, This paper, according to the relevant national laws and regulations, combined with the characteristics and commitment of radioactive laboratories, analyzed the existing hazards, the protection and management measures that should be taken during radioactivity laboratories or in radioactive practice. Adhere to the principle of ″prevention in the first place and integrating prevention with control″ to ensure radiation safety, and environmental pollution. © Published under licence by IOP Publishing Ltd.
语种：
英文
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Effect of Ultrasonic Treatment on Radon Exhalation from Porous Media: An Experimental Case Study
作者：
Xie, Ling-feng;Zou, Shu-liang;Li, Xiang-yang;Hong, Chang-shou* ;Wang, Hong;...
期刊：
Sustainability ,2018年10(9):3005 ISSN：2071-1050
通讯作者：
Hong, Chang-shou
作者机构：
[Yuan, Jing-fan; Xie, Ling-feng; Li, Ming; Hong, Chang-shou; Cai, Zi-qi; Wang, Hong; Zhang, Shuai; Zou, Shu-liang; Li, Xiang-yang] Univ South China, Sch Environm & Safety Engn, Hengyang 421001, Peoples R China.;[Xie, Ling-feng; Hong, Chang-shou; Li, Xiang-yang] Hunan Prov Engn Technol Res Ctr Uranium Tailings, Hengyang 421001, Peoples R China.;[Zou, Shu-liang] Hunan Prov Key Lab Emergency Safety Technol & Equ, Hengyang 421001, Peoples R China.
通讯机构：
[Hong, Chang-shou] U;[Hong, Chang-shou] H;Univ South China, Sch Environm & Safety Engn, Hengyang 421001, Peoples R China.;Hunan Prov Engn Technol Res Ctr Uranium Tailings, Hengyang 421001, Peoples R China.
关键词：
water-bearing porous media;ultrasonic effect;radon exhalation rate;radon earthquake precursor
摘要：
Radon is internationally recognized as one of the seven seismic precursors. A self-assembly ultrasonic generator and experimental apparatus for radon measurement were utilized to explore the radon exhalation regularities of water-bearing porous media under different ultrasonic intensities. The experimental results showed that there was a coupling relationship among radon exhalation rate, moisture content, and ultrasonic frequency. With the increase of the frequency of the ultrasonic wave, its effect on the promotion of radon exhalation rate was found to be a more obviously positive linear correlation. The radon exhalation rate, which could climb to a maximum value of 0.179 Bq·m-2·s-1 in a naturally air-dried sample, increased at first and then decreased along with increased moisture content. Moreover, this study found that the ultrasonic wave had the most remarkable promoting effects on the radon exhalation rate of porous media with high moisture content, and there is a positive linear correlation between the growth rate of the radon exhalation rate and moisture content. The experimental results could provide a beneficial reference for the continual monitoring of radon in a seismically active belt and an explanation of radon anomalies; however, the proposed experimental model was simplified, so further insights are strictly required for a reliable correlation with the real monitoring of radon in a seismically active belt. © 2018 by the authors.
语种：
英文
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“科教融合、校企合作”双翼模式下的人才培养初探--以安全工程为例
作者：
余修武;叶勇军;蒋复量;郭倩;李向阳;...
期刊：
高教学刊 ,2018年(1):10-12 ISSN：2096-000X
作者机构：
南华大学 环境与安全工程学院,湖南 衡阳,421001;[汪弘; 雷林; 郭倩; 余修武; 李向阳; 叶勇军; 蒋复量] 南华大学
关键词：
安全工程;教学模式;人才培养;创新实践能力
摘要：
在分析安全工程专业教学现状和问题的基础上, 针对大学生在科研能力与应用能力方面的欠缺, 从教学模式入手, 以科教融合与校企合作作为创新实践人才培养的途径, 加强学生的创新和实践能力为目标, 来提高安全工程专业人才培养的质量.
语种：
中文
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Efficient cleaning of cyanobacterial blooms using flocculants made of modified waterwork sludges
作者：
Wang, Hongqiang;Zhang, Lieyu*
期刊：
Environmental Chemistry Letters ,2018年16(1):265-273 ISSN：1610-3653
通讯作者：
Zhang, Lieyu
作者机构：
[Wang, Hongqiang] Univ South China, Sch Environm & Safety Engn, Hengyang 421001, Peoples R China.;[Zhang, Lieyu] Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China.
通讯机构：
[Zhang, Lieyu] C;Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China.
关键词：
Modified waterworks sludge flocculants;Microcystis aeruginosa;Eutrophic water remediation;Removal of Microcystis blooms;Hydrochloric acid
摘要：
Cyanobacteria are freshwater microorganisms that can bloom and produce toxins that contaminate water. There is thus a need for methods to remove cyanobacteria, by flocculation for instance. Here, we prepared new flocculants by modifying waterwork sewage sludge. Flocculant (A) or (B) were prepared by treating 3 g of preprocessed sludge in hydrochloric acid and heating at 200 or 250 A degrees C for 3.0 h. Flocculant (A) and (B) were used to remove Microcystis aeruginosa colonies by adding 0.75 mL of flocculant to 100 mL of algal culture and incubating for 8 h. Results show removal efficiencies of 72 and 91%, respectively. Total nitrogen was reduced by 30 and 12%. Total phosphorus was reduced by 75 and 76%. Chlorophyll fluorescence showed that cyanobacterial cells were removed without damaging the membrane integrity. Overall, findings show that modified waterworks sludge flocculants have good potential for the control of algal blooms, the removal of total nitrogen and total phosphorus and the restoration of aquatic ecosystems.
语种：
英文
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负载型碱处理ZSM- 5催化丙烯醛二乙缩醛和氨合成吡啶和3-甲基吡啶研究
作者：
罗才武;晁自胜;雷波;汪弘
期刊：
合成化学 ,2018年26(5):360-363,369 ISSN：1005-1511
作者机构：
南华大学环境与安全工程学院, 湖南, 衡阳, 421001;长沙理工大学材料科学与工程学院, 湖南, 长沙, 410114;[罗才武; 雷波; 汪弘] 南华大学环境与安全工程学院, 湖南, 衡阳, 421001;[晁自胜] 长沙理工大学材料科学与工程学院, 湖南, 长沙, 410114
关键词：
碱处理;催化;合成;吡啶;3-甲基吡啶
摘要：
以碱处理ZSM-5(ZSM-5-At)为载体,采用浸渍法负载多种活性组分MF_x(M: Mg或K)和MO_x(M:单一或双元素)制得催化剂MF_x/ZSM-5-At和MO_x/ZSM-5-At,其结构经X-射线衍射(XRD)表征。以丙烯醛二乙缩醛、水和氨合成吡啶和3-甲基吡啶反应为评价活性对象考察了催化剂的活性。研究结果表明,与MgF2/ZSM-5-At相比,KF/ZSM-5-At表现出更好的催化活性;当KF/ZSM-5-At焙烧温度为700 ℃和KF负载量为1.0%时,吡啶和3-甲基吡啶总收率为最大值。在系列MO_x/ZSM-5-At催化剂中,ZrO_2/ZSM-5-At上获得的吡啶和3-甲基吡啶总收率为最高。
语种：
中文
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PREPARATION OF HYDROGEL BEADS BASED ON SODIUM ALGINATE AND AQUEOUS EXTRACT FROM POMEGRANATE PEEL AND ITS CYANOBACTERIA REMOVAL PERFORMANCE
作者：
Wang, Hongqiang;Zhang, Lieyu*
期刊：
ENVIRONMENT PROTECTION ENGINEERING ,2018年44(2):159-167 ISSN：0324-8828
通讯作者：
Zhang, Lieyu
作者机构：
[Wang, Hongqiang] Univ South China, Sch Environm & Safety Engn, Changsheng West Rd, Hengyang City 421001, Hunan, Peoples R China.;[Zhang, Lieyu] Chinese Res Inst Environm Sci, Lab Water Environm Syst Engn, Dayangfang Beiyuan Rd 8, Beijing 100012, Peoples R China.
通讯机构：
[Zhang, Lieyu] C;Chinese Res Inst Environm Sci, Lab Water Environm Syst Engn, Dayangfang Beiyuan Rd 8, Beijing 100012, Peoples R China.
摘要：
In recent years, harmful cyanobacterial blooms frequently occurred all over the world, causing great damage to ecosystems, fishery resources, and recreational facilities. Therefore, the removal of harmful cyanobacterial blooms is a crucial step for the maintenance of safe water supplies and for the safety of aquatic products. Hydrogel beads based on sodium alginate and an aqueous extract from pomegranate peel were prepared, and used for removing Microcystin aeruginosa. The removal efficiencies of hydrogel beads to M. Aeruginosa and the factors affecting its removal from solutions (the ratio of material to solvent, the dosage of hydrogel beads, and the density of M. Aeruginosa cells) were investigated. The optimum ratio of material to solvent, the dosage of hydrogel beads and the density of M aeruginosa cells were 0.03 g/cm, 100 g/dm and less than 8.68 106 cells/cm, respectively. When the density of M. Aeruginosa cells was below 8.68 106cells/cm, the removal efficiency of cyanobac-teria was above 99.21% at the dose of 100 g/dm. The pomegranate peel and sodium alginate, as natural materials, were safe and innocuous, providing simple operation, low cost and high availability. Therefore, the hydrogel beads offer favorable characteristics in M. Aeruginosa removal. © 2018 Technical University of Wroclaw. All rights reserved.
语种：
英文
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铀尾砂充填膏体材料的力学性能试验研究
作者：
冯胜洋;崔宇;谭国炽;李向阳;汪弘
作者机构：
[冯胜洋; 崔宇; 谭国炽; 李向阳; 汪弘] 南华大学环境与安全工程学院;[冯胜洋; 崔宇; 谭国炽; 李向阳; 汪弘] 湖南省铀尾矿库退役治理工程技术研究中心;[冯胜洋; 崔宇; 谭国炽; 李向阳; 汪弘] 铀矿冶放射性控制技术湖南省工程研究中心
会议名称：
第30届全国高校安全科学与工程学术年会暨第12届全国安全工程领域专业学位研究生教育研讨会
会议时间：
2018-10-12
会议地点：
中国安徽合肥
关键词：
铀尾砂;膏体充填;无侧限抗压强度;正交试验
摘要：
为确定铀尾砂膏体充填材料满足力学性能的最优配比,研究不同配比对膏体力学性能的影响。本文基于正交试验方法,对不同灰砂比、减水剂含量和质量浓度的铀尾砂充填膏体材料开展无侧限抗压强度试验,研究结果表明:铀尾砂膏体充填材料的最优配比为灰砂比1:5、减水剂含量1.5%、膏体质量浓度79%。减水剂在养护初期对膏体的力学强度影响较大,灰砂比和质量浓度影响相对较小;膏体养护后期,灰砂比的影响占主导作用,质量浓度其
语种：
中文
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COMPOSITION OF THE ETHYL ACETATE EXTRACTS FROM PORTULACA OLERACEA AND DETERMINATION OF THEIR ANTIALGAL ACTIVITY
作者：
Liang, Feng;Wang, Hongqiang*
期刊：
Fresenius Environmental Bulletin ,2017年26(12):7101-7104 ISSN：1018-4619
通讯作者：
Wang, Hongqiang
作者机构：
[Liang, Feng] Henan Univ Urban Construct, Sch Municipal & Environm Engn, Pingdingshan 467036, Henan, Peoples R China.;[Wang, Hongqiang] Univ South China, Sch Environm & Safety Engn, Hengyang 421001, Peoples R China.
通讯机构：
[Wang, Hongqiang] U;Univ South China, Sch Environm & Safety Engn, Hengyang 421001, Peoples R China.
关键词：
Algae;Allelopathic activity;Fatty acid;Portulaca oleracea
摘要：
In order to identify these allelochemicals of ethyl acetate extracts from Portulacaceae and seeds, the chemical components of the extracts were analyzed by gas chromatography-mass spectrometry (GC-MS). The algal inhibitory effects of the extracts were determined by bioassays using Microcystis aeruginosa. 15 kinds of compounds, including fatty acid, ester, ketone, sterol were obtained and 8 identified fatty acids and N-phenyl-2-Naphthalenamine were found to be significantly active against some harmful algae. The inhibitory ratios of the ethyl acetate extracts for M. aeruginosa were 56.1% and 49.4% when the algae were exposed to 20.0 mg/L of the extracts, respectively. The results suggested that these ethyl acetate extracts from Portulacaceae and seeds may serve as environmentally friendly agents for controlling the growth of M. aeruginosa. © by PSP.
语种：
英文
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CYANOBACTERIA BLOOM MITIGATION USING CALCIUM HYDROXIDE AND AN ILLITE COMPOSITE ALGICIDE
作者：
Wang, Hongqiang;Zhang, Anna;Zhang, Lieyu*
期刊：
Fresenius Environmental Bulletin ,2017年26(12A):186-190 ISSN：1018-4619
通讯作者：
Zhang, Lieyu
作者机构：
[Wang, Hongqiang] Univ South China, Sch Environm & Safety Engn, Hengyang 421001, Peoples R China.;[Zhang, Lieyu] Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China.;[Zhang, Anna] Tianjin Chengjian Univ, Sch Environm & Municipal Engn, Tianjin 300384, Peoples R China.
通讯机构：
[Zhang, Lieyu] C;Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China.
关键词：
Calcium hydroxide;Colonial m. aeruginosa;Cyanobacteria blooms;Illite;Unicellular m. aeruginosa
摘要：
A method was developed for cyanobacteria bloom (unicellular and colonial Microcystis aeruginosa) mitigation using calcium hydroxide and an illite composite algicide. The maximum cell removal efficiency was 84.72% when calcium hydroxide was used alone. When illite and calcium hydroxide were used together, the removal efficiency increased to 90.43% within 9 h. In addition, the results also showed that the composite algicide could remove total nitrogen (TN) and total phosphorus (TP) in eutrophic water. However, the removal efficiency of TP is more evident than that of TN under the same composite algicide doses. Thus, the method would provide an alternative composite algicide to mitigate cyanobacteria blooms using calcium hydroxide and illite in eutrophic water. © by PSP.
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英文
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