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Accessible and low-to zero-cost remedy:Traditional medicine use during pregnancy and labor
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作者 Modupe Motunrayo ADAMOLEKUN Oluwaseyi Abiodun AKPOR +2 位作者 Oghenerobor Benjamin AKPOR Oluwakemi Elizabeth ADEOLA Olusola Bolaji ADEWALE 《Journal of Integrative Nursing》 2023年第2期75-80,共6页
Traditional medicine(TM)has played an essential part in maternity services around the world,which has led to increased utilization among pregnant women.Herbs,herbal preparations,and completed herbal products are examp... Traditional medicine(TM)has played an essential part in maternity services around the world,which has led to increased utilization among pregnant women.Herbs,herbal preparations,and completed herbal products are examples of TMs that contain active substances such as plant parts or other plant components that are thought to have therapeutic advantages.This study review aimed to identify the herbs commonly used,reasons for use,and effect of use,to make adequate recommendations on herbal medicine use as a remedy for pregnancy and labor.Incorporating evidence from reviews,personal correspondence,and diaries,this study demonstrates that about 80%of people used TM such as herbal remedies for sickness diagnosis,prevention,treatment,and promotion of general well‑being.Due to its accessibility,cost,and availability,TM is usually used by expectant mothers.Examples of TM used in pregnancy and labor include honey,aloe,raspberry,jute mallow,and hibiscus leaves.It is important to note that its use in pregnancy and labor can be beneficial or harmful to both mother and child.Lack of standardization,financial risk,lack of safety,and effectiveness are challenges to TM.There is a need of creating awareness of the safe use and effects of TM in pregnancy and labor through the provision of health education programs for women in the community. 展开更多
关键词 LABOR PREGNANCY remedy traditional medicine
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基于BMC Remedy平台的业务流程设计与实现
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作者 楚涓 李诠娜 鲍凯 《数字技术与应用》 2014年第3期152-153,155,共3页
本文利用BMC Remedy流程设计器作为基础设计工具,即最佳惯例信息技术基础结构库(ITIL)标准而构建的专业开发环境下,用实例阐述如何根据企业办公自动化的需求灵活定制工作流程数据流及数据库总体的设计,以便更好地服务于企业自动化办公... 本文利用BMC Remedy流程设计器作为基础设计工具,即最佳惯例信息技术基础结构库(ITIL)标准而构建的专业开发环境下,用实例阐述如何根据企业办公自动化的需求灵活定制工作流程数据流及数据库总体的设计,以便更好地服务于企业自动化办公体系。 展开更多
关键词 BMC remedy 办公自动化
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Antiplasmodial activity of traditional polyherbal remedy from Odisha, India:Their potential for prophylactic use 被引量:1
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作者 Prakash Bangalore Nagendrappa Jean-Francois Franetich +3 位作者 Frederick Gay Audrey Lorthiois Padma Venkatasubramanian Dominique Mazier 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2015年第12期982-986,共5页
Objective:To evaluate the potential prophylactic activity of traditional polyherbal remedy against malaria.Methods:A traditional polyherbal remedy against malaria from Odisha,India was evaluated for its potential prop... Objective:To evaluate the potential prophylactic activity of traditional polyherbal remedy against malaria.Methods:A traditional polyherbal remedy against malaria from Odisha,India was evaluated for its potential prophylactic activity using in vitro hepatic cell lines assay and the murine malaria system Plasmodium yoelii yoelii/Anopheles stephensi.Results:The polyherbal extract inhibited the Plasmodium yoelii hepatic stages in vitro(IC500.74 mg/m L),a therapeutic index of 9.54.In mice treated with the aqueous extract(2 000 mg/kg/day),peak parasitaemia values were 81%lower in the experimental2.35%±0.14%as compared to controls 12.62%±0.52%(P<0.001),suggesting significant prophylactic activity.Conclusions:The observations provide a proof of concept for a traditional malaria prophylactic remedy used by tribal populations in India. 展开更多
关键词 Polyherbal remedy PLASMODIUM Malaria prophylaxis Antiplasmodial activity
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ARTEMISININ SUPPORSITORY,A NEW ANTIMALARIAL REMEDY OF ORIGINALITY
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《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 1989年第1期8-8,共1页
Malaria is one of the six major seriousepidemic diseases prevalent in tropical andsubtropical areas.Beginning from 1967,specialinstititutions,organized by professional researchworkers,were established for searching an... Malaria is one of the six major seriousepidemic diseases prevalent in tropical andsubtropical areas.Beginning from 1967,specialinstititutions,organized by professional researchworkers,were established for searching antima-larial drugs through research work in chemistryand traditional Chinese medicine.As early as in770-221 BC,the“Recipes for Treating 52 Kindsof Diseases”,a textual relic unearthed inMawangdui,described the application of artemisiaannue as an antimalarial remedy.In 341,Dr.Ge Hong of the Iin Dynasty recorded,in his“Handbook of Prescriptions for EmergencyTreatment”,artemisia annua as an ideal anti-malarial drug. 展开更多
关键词 searching TEXTUAL remedy tropical professional prevalent verified organized DYNASTY metabolism
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treat,cure,heal,remedy用法浅析
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作者 刘玉娟 《语言教育》 1992年第6期37-38,共2页
treat,cure,heal,remedy 这四个词都是指由患病或受伤恢复到健康状况,尤指靠医疗的功效,但在实际应用中是有区别的。现分述如下: 一、treat 1.treat:vt.医治、治疗;强调治疗的动作或医治的过程,不涉及治疗的结果。 1)The dentist is tre... treat,cure,heal,remedy 这四个词都是指由患病或受伤恢复到健康状况,尤指靠医疗的功效,但在实际应用中是有区别的。现分述如下: 一、treat 1.treat:vt.医治、治疗;强调治疗的动作或医治的过程,不涉及治疗的结果。 1)The dentist is treating my teeth. 牙医师在治疗我的牙齿。 2)Which doctor is treating you for tis trouble? 展开更多
关键词 remedy 牙医师 doctor TROUBLE 治疗法 treating teeth 发音缺陷 手术矫正 finger
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Shan Hai Dan——A Sovereign Remedy for Coronary Heart Disease
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《China's Foreign Trade》 1995年第2期40-40,共1页
Asovereign remedy for coronary heart disease, the traditional Chinese patent medicine Shan Hai Dan, in the form of tablets, capsules, oral jelly, drinks and health wine, and produced by the Shan Hai Dan Industrial Ent... Asovereign remedy for coronary heart disease, the traditional Chinese patent medicine Shan Hai Dan, in the form of tablets, capsules, oral jelly, drinks and health wine, and produced by the Shan Hai Dan Industrial Enterprise Group. is a discovery made by Zhao Guoxin, professor at the Si’an Traditional Chinese Medicine and 展开更多
关键词 A Sovereign remedy for Coronary Heart Disease Shan Hai Dan
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Slope Instability at Nablus-Al Bathan Road, Palestinian Territories (Causes, Analysis and Remedy Measurements)
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作者 Isam Jardaneh Sami Hijjawi George Odeh 《World Journal of Engineering and Technology》 2021年第3期538-547,共10页
Nablus-Al Bathan Road which connects Nablus City and Jordan Valley in the West Bank of Palestinian Territories, was widened, reconstructed and rehabilitated in 2009, however, between 2010 and 2012 road defects at seve... Nablus-Al Bathan Road which connects Nablus City and Jordan Valley in the West Bank of Palestinian Territories, was widened, reconstructed and rehabilitated in 2009, however, between 2010 and 2012 road defects at several locations were observed. To fix these defects especially at station 2</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">+</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">100 of the road, soil replacement in the body of the road and big boulders to support the edge of the road were used. Unfortunately, large settlement occurred in the part of the road under maintenance and more sliding and slope instability occurred in the road at station 2</span><span style="font-family:""></span><span style="font-family:Verdana;">+</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">100 during the remedial measures. Studies were carried out to find the causes of this problem. These included surveying of the area, geotechnical studies</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">(making trial pits, performing geophysical se</span><span style="font-family:Verdana;">ismic exploration and digging out several boreholes), in addition to slope stability analysis. It was found that the main causes of landslides were types of soils at the site, high slopes, groundwater recharged from rainfall and changing of weights (cut and fill). Remedy measures were suggested to overcome sliding problem based on available resources and local technology. 展开更多
关键词 Slope Instability LANDSLIDE GeoStudio (Slope/w) remedy Measures
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Trek 2017新款Fuel EX 29和Remedy 27.5初评
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《中国自行车》 2016年第10期106-109,共4页
在加拿大西岸卑诗省斯阔米甚地区,有全世界最棒的山地车骑行小径、陡峭的花岗岩山峰和充满绿色树木的天然森林。任何去惠斯勒玩的人,都应该留出一两天去领略一下斯阔米甚的美丽。以温哥华为中心,周围2 h车程可以玩的地方非常多:惠斯勒... 在加拿大西岸卑诗省斯阔米甚地区,有全世界最棒的山地车骑行小径、陡峭的花岗岩山峰和充满绿色树木的天然森林。任何去惠斯勒玩的人,都应该留出一两天去领略一下斯阔米甚的美丽。以温哥华为中心,周围2 h车程可以玩的地方非常多:惠斯勒、斯阔米甚都很近;而温哥华市区往南穿过美国边境的数个小镇,有着世界上知名的Transition、Kona等品牌的总部, 展开更多
关键词 山地车 惠斯勒 天然森林 前叉 FUEL EX 29 remedy 27.5 Trek 2017 卑诗省 Transition 全地形车
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Remedy招聘选拔的创新
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作者 言行一 《企业研究》 2002年第8X期7-10,共4页
Remedy公司成立于1990年,是一家处于领先地位的企业软件公司,同时也提供员工关系和客户服务方案。为了紧跟发展需要同时反映其玩乐文化,Remedy公司采用了独特、创新的招聘战略。Remedy公司的招聘和选拔原则很简单, 就是"择优录用, 信... Remedy公司成立于1990年,是一家处于领先地位的企业软件公司,同时也提供员工关系和客户服务方案。为了紧跟发展需要同时反映其玩乐文化,Remedy公司采用了独特、创新的招聘战略。Remedy公司的招聘和选拔原则很简单, 就是"择优录用, 信任员工。"得益于它招聘到的德才兼备的员工, 这家公司已经成为行业内的领袖。 Remedy公司的理想员工是能够融合到公司的文化中。他们要有热惰、专业性强、道德品质高并且敢于冒险。公司不仅仅招募这样的员工, 而且鼓励老员工也培养这样的品质。 Remedy公司员工服务部副部长说:"创新不仅仅是干出点新事, 而且是把普通的事用独特的方法来做。我们希望两者兼得。"Remedy公司招聘和选拔中至始至终都贯穿了创新意识。 展开更多
关键词 招聘选拔 remedy 员工关系 人力资源部 企业软件 道德品质 招聘策略 执行团队 出点 副部长
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Local Remedy
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作者 Ge Lijun 《ChinAfrica》 2017年第11期46-47,共2页
The building of Mali's first drug factory by a Chinese company in 2015 marked a major turning point in the continent'spharmaceutical industryNOT so long ago,Sanankoroba was a deserted place.But today,a top-grade dru... The building of Mali's first drug factory by a Chinese company in 2015 marked a major turning point in the continent'spharmaceutical industryNOT so long ago,Sanankoroba was a deserted place.But today,a top-grade drug factory proudly stands in this small town located near the capital Bamako in south Mali.The factory is owned by the Malian Branch of Humanwell Healthcare(Group)Co.Ltd.,a Chinese pharmaceutical company whose decision to enter the African market dates back to 2009. 展开更多
关键词 factory pharmaceutical owned today continent African Local remedy marked medicines companies
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Addressing Japan’s disposal of nuclear-contaminated water from the perspective of international human rights law
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作者 Yen-Chiang Chang Xiaonan Zhao 《Chinese Journal of Population,Resources and Environment》 2024年第1期1-9,共9页
The discharge of nuclear-contaminated water containing radionuclides into the ocean by Japan will lead to its integration into the entire ecosystem through processes of circulation and biomagnification,eventually ente... The discharge of nuclear-contaminated water containing radionuclides into the ocean by Japan will lead to its integration into the entire ecosystem through processes of circulation and biomagnification,eventually entering the human body via the food chain.This poses a substantial risk of irreversible damage to both the ecosystem and human health,a situation that will worsen with the ongoing discharge of such water.The respect and protection of human rights represent an international consensus,and safeguarding fundamental human rights is a substantial obligation that states must undertake in accordance with both international and domestic law.Since the Fukushima nuclear disaster,Japan has continuously violated its international legal obligations to protect human rights in several areas,including the resettlement of disaster victims,the reduction of nuclear radiation levels,and the handling of contaminated water.Such actions have compromised and will continue to compromise the basic human rights of not only its citizens but also those of people worldwide,including environmental rights,the right to life,development rights,and food rights.In the aftermath of the Fukushima meltdown,the public and workers involved in handling nuclear contaminants have been continually exposed to high radiation levels,endangering their rights to life,development,and health.Japan’s inadequate efforts in victim resettlement and environmental restoration have jeopardized the environmental and food rights of its citizens to live healthily and access food in an environment unaffected by nuclear radiation.The release of nuclear-contaminated water poses a risk of Japan’s nuclear pollution to the people of neighboring countries and the global population at large.The principle of human rights underpins the theory of a community with a shared future for humanity,and human rights are a crucial area of China’s active participation in United Nations affairs and global governance.By voicing concerns over Japan’s potential human rights violations globally,China demonstrates its role as a responsible major country.In response to Japan’s breach of legal obligations and human rights violations,China can adopt a reasoned and beneficial approach,including calling on the international community to hold Japan criminally accountable for crimes against humanity under the Rome Statute and advancing scholarly discussions on ecocide and crimes against the marine environment.Furthermore,China should persist in seeking advisory opinions from the International Court of Justice and strive for substantive accountability,utilizing the mechanisms of international human rights organizations to make its voice heard. 展开更多
关键词 Fukushima nuclearcontaminated water Crimes against humanity remedy for violations of human rights Right to environment Right to life
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Effects of iron oxide on crystallization behavior and spatial distribution of spinel in stainless steel slag
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作者 Zihang Yan Qing Zhao +3 位作者 Chengzhi Han Xiaohui Mei Chengjun Liu Maofa Jiang 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2024年第2期292-300,共9页
Chromium plays a vital role in stainless steel due to its ability to improve the corrosion resistance of the latter.However,the re-lease of chromium from stainless steel slag(SSS)during SSS stockpiling causes detrimen... Chromium plays a vital role in stainless steel due to its ability to improve the corrosion resistance of the latter.However,the re-lease of chromium from stainless steel slag(SSS)during SSS stockpiling causes detrimental environmental issues.To prevent chromium pollution,the effects of iron oxide on crystallization behavior and spatial distribution of spinel were investigated in this work.The results revealed that FeO was more conducive to the growth of spinels compared with Fe2O3 and Fe3O4.Spinels were found to be mainly distrib-uted at the top and bottom of slag.The amount of spinel phase at the bottom decreased with the increasing FeO content,while that at the top increased.The average particle size of spinel in the slag with 18wt%FeO content was 12.8μm.Meanwhile,no notable structural changes were observed with a further increase in FeO content.In other words,the spatial distribution of spinel changed when the content of iron oxide varied in the range of 8wt%to 18wt%.Finally,less spinel was found at the bottom of slag with a FeO content of 23wt%. 展开更多
关键词 stainless steel slag SPINEL CHROMIUM waste remediation ferrous oxide
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Enhanced gas production and CO_(2) storage in hydrate-bearing sediments via pre-depressurization and rapid CO_(2) injection
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作者 Hongnan Chen Yifei Sun +5 位作者 Bojian Cao Minglong Wang Ming Wang Jinrong Zhong Changyu Sun Guangjin Chen 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2024年第3期126-134,共9页
Carbon emission reduction and clean energy development are urgent demands for mankind in the coming decades.Exploring an efficient CO_(2) storage method can significantly reduce CO_(2) emissions in the short term.In t... Carbon emission reduction and clean energy development are urgent demands for mankind in the coming decades.Exploring an efficient CO_(2) storage method can significantly reduce CO_(2) emissions in the short term.In this study,we attempted to construct sediment samples with different residual CH_(4) hydrate amounts and reservoir conditions,and then investigate the potentials of both CO_(2) storage and enhanced CH_(4) recovery in depleted gas hydrate deposits in the permafrost and ocean zones,respectively.The results demonstrate that CO_(2) hydrate formation rate can be significantly improved due to the presence of residual hydrate seeds;However,excessive residual hydrates in turn lead to the decrease in CO_(2) storage efficiency.Affected by the T-P conditions of the reservoir,the storage amount of liquid CO_(2) can reach 8 times that of gaseous CO_(2),and CO_(2) stored in hydrate form reaches 2-4 times.Additionally,we noticed two other advantages of this method.One is that CO_(2) injection can enhance CH_(4) recovery rate and increases CH_(4) recovery by 10%-20%.The second is that hydrate saturation in the reservoir can be restored to 20%-40%,which means that the solid volume of the reservoir avoids serious shrinkage.Obviously,this is crucial for protecting the goaf stability.In summary,this approach is greatly promising for high-efficient CO_(2) storage and safe exploitation of gas hydrate. 展开更多
关键词 HYDRATE DEPRESSURIZATION CO_(2) storage CH_(4) production Reservoir remediation
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Pollution source identification methods and remediation technologies of groundwater: A review
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作者 Ya-ci Liu Yu-hong Fei +2 位作者 Ya-song Li Xi-lin Bao Peng-wei Zhang 《China Geology》 CAS CSCD 2024年第1期125-137,共13页
Groundwater is an important source of drinking water.Groundwater pollution severely endangers drinking water safety and sustainable social development.In the case of groundwater pollution,the top priority is to identi... Groundwater is an important source of drinking water.Groundwater pollution severely endangers drinking water safety and sustainable social development.In the case of groundwater pollution,the top priority is to identify pollution sources,and accurate information on pollution sources is the premise of efficient remediation.Then,an appropriate pollution remediation scheme should be developed according to information on pollution sources,site conditions,and economic costs.The methods for identifying pollution sources mainly include geophysical exploration,geochemistry,isotopic tracing,and numerical modeling.Among these identification methods,only the numerical modeling can recognize various information on pollution sources,while other methods can only identify a certain aspect of pollution sources.The remediation technologies of groundwater can be divided into in-situ and ex-situ remediation technologies according to the remediation location.The in-situ remediation technologies enjoy low costs and a wide remediation range,but their remediation performance is prone to be affected by environmental conditions and cause secondary pollution.The ex-situ remediation technologies boast high remediation efficiency,high processing capacity,and high treatment concentration but suffer high costs.Different methods for pollution source identification and remediation technologies are applicable to different conditions.To achieve the expected identification and remediation results,it is feasible to combine several methods and technologies according to the actual hydrogeological conditions of contaminated sites and the nature of pollutants.Additionally,detailed knowledge about the hydrogeological conditions and stratigraphic structure of the contaminated site is the basis of all work regardless of the adopted identification methods or remediation technologies. 展开更多
关键词 Groundwater pollution Identification of pollution sources Geophysical exploration identification Geochemistry identification Isotopic tracing Numerical modeling Remediation technology Hydrogeological conditions Hydrogeological survey engineering
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Technique of Earthworms Restoring Soil in Greenhouse Cultivation
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作者 Yanjiao LI Jiafei SU +7 位作者 Zhiu ZHANG Guang QI Jianhua CHEN Lixuan KOU Limin WANG Wenxian LIU Junyi ZHANG Libing QIU 《Asian Agricultural Research》 2024年第1期40-43,共4页
The production environment of greenhouse cultivation is relatively closed,the multiple cropping index is high,the management of fertilizationwatering and pesticideapplication isblindtosomeextent,andthe phenomenonofcon... The production environment of greenhouse cultivation is relatively closed,the multiple cropping index is high,the management of fertilizationwatering and pesticideapplication isblindtosomeextent,andthe phenomenonofcontinuous cropping isalsocommonSoilquali-ty affects the sustainable development of greenhouse cultivation.Earthworm is a ubiquitous invertebrate organism in soil,an important part of soil system,a link between terrestrial organisms and soil organisms,an important link in the small cycle of soil material organisms,and plays an important role in maintaining the structure and function of soil ecosystem.Different ecotypes of earthworms are closely related to their habi-tats(soil layers)and food resource preferences,and then affect their ecological functions.The principle of earthworm regulating soil function is essentially the close connection and interaction between earthworm and soil microorganism.Using different ecotypes of earthworms and bio-logical agents to carry out combined remediation of greenhouse cultivation soil is a technical model to realize sustainable development of green-house cultivation. 展开更多
关键词 Earthworms Greenhouse cultivation Soil remediation Biological agent
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Feasibility Evaluation of Using Biochar-based Permeable Reactive Barrier for the Remediation of Mercury and Arsenic Composite Polluted Water Bodies
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作者 Dilixiati·Abulizi 《Asian Agricultural Research》 2024年第5期15-19,共5页
This study employed a modified biochar material to construct a permeable reactive barrier(PRB)for the treatment of water bodies polluted with mercury and arsenic.The experimental results demonstrated that the addition... This study employed a modified biochar material to construct a permeable reactive barrier(PRB)for the treatment of water bodies polluted with mercury and arsenic.The experimental results demonstrated that the addition of goethite-modified biochar significantly enhanced the remediation efficiency of As(III),achieving a maximum removal rate of 100%.Conversely,pure biochar exhibited high efficiency in the removal of Hg(II),with a maximum removal rate approaching 100%.Furthermore,the pH level of the water significantly influenced the adsorption efficiency of heavy metal ions,with the optimal removal performance observed at a pH of 6.0.The PRB system demonstrated excellent removal rates under low concentrations of heavy metals.However,as the concentration increased,the remediation efficiency exhibited a slight decrease.In summary,the findings of this study provide compelling evidence for the use of modified biochar in the construction of PRBs for the remediation of mercury and arsenic-polluted water bodies.Furthermore,the study reveals the mechanism by which pH and heavy metal concentration influence remediation efficiency. 展开更多
关键词 BIOCHAR Goethite-modified biochar Permeable reactive barrier(PRB) Mercury and arsenic pollution Remediation efficiency
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Ecological Remediation Technology of Urban Landscape Water Body
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作者 SUN Xiangxuan XIONG Qingqing XIAO Shizhen 《Journal of Landscape Research》 2024年第1期55-58,共4页
Urban landscape water body is not only an important part of urban landscape construction,but also an important way to maintain landscape diversity and biodiversity,carrying the beautiful yearning of urban residents fo... Urban landscape water body is not only an important part of urban landscape construction,but also an important way to maintain landscape diversity and biodiversity,carrying the beautiful yearning of urban residents for natural life.A good state of urban landscape water body is crucial to the ecological environment of the city.However,due to the poor kinetic energy of urban landscape water body and the influence of various human factors,the quality of urban landscape water body often declines,and urban population is threatened by water security problems.Through the study of several water body ecological remediation technologies,relevant suggestions are put forward,in order to provide a reference for water pollution restoration and treatment in urban human settlement environment. 展开更多
关键词 Urban landscape water body Water body treatment Ecological remediation
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Comparative Study of the Efficacy of Metal Removal from Contaminated Aqueous Solutions by Solid Bidentate Ligands&Liquid Plant Materials
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作者 Lovell Agwaramgbo Talajai Sardin Christopher Alisa 《Journal of Environmental Science and Engineering(A)》 CAS 2024年第2期45-49,共5页
Heavy metal contaminated water sources pose serious health risks for humans,animals,and plants.Exposure to and ingestion of heavy metals have been associated to liver,kidney,and brain function.Objective:The aim of thi... Heavy metal contaminated water sources pose serious health risks for humans,animals,and plants.Exposure to and ingestion of heavy metals have been associated to liver,kidney,and brain function.Objective:The aim of this research is to comparatively examine the metal removal efficacy of three solid bidentate chemicals and four plant materials.Study Design&Methods:Standard solutions of zinc(II)and lead(II)ions with concentrations of 1,000 ppm were respectively treated with OA(Oxalic Acid),dibasic bidentate ligands(sodium hydrogen phosphate and sodium carbonate).Then,the solutions were placed on a shaker for 15 h,centrifuged,and the supernatant was analyzed using ICP-AES(Inductively Coupled Plasma-Atomic Emission Spectrometry).Results:All the solid bidentate adsorbents were very effective in removing zinc and lead(>90%).However,more lead than zinc was removed across all adsorbents except for lemon where equal percent of zinc and lead(49%)were removed.OA and Na2HPO4 removed about equal amount of lead(>99%).The plant materials(SP(Spinach),bell pepper and GBP(Green Bell Pepper)),respectively and preferentially removed more lead(98.9%,98.3%,81.5%)than zinc(91.7%,46%,46%).Conclusion:Although plant materials have gained attraction for the remediation of heavy metal,however,some bidentate chemical ligands such as OA,sodium carbonate and sodium hydrogen phosphates are even more effective in removing these metals from contaminated water.Furthermore,heavier metals are preferentially removed than lighter metals. 展开更多
关键词 Organic acids OA REMEDIATION CHELATION LIGANDS heavy metal contamination
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Not a Sovereign Remedy
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作者 YAO BIN 《Beijing Review》 2011年第7期2-2,共1页
Since 2006, amid explosive growth of auto sales, congestion has become a headache for Chinese cities, big and small. Now, it’s common that many downtown streets, especially in developed eastern and central
关键词 Not a Sovereign remedy
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Chemical treatment for sand production control:A review of materials,methods,and field operations
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作者 Ali Safaei Mohammad Asefi +4 位作者 Mohsen Ahmadi Tayebe Pourshamsi Shima Baloochestanzadeh Ali Khalilnezhad Masoud Riazi 《Petroleum Science》 SCIE EI CAS CSCD 2023年第3期1640-1658,共19页
Sand production from loosely consolidated reservoirs is one of the critical issues in the oil and gas in-dustry all around the world that can cause many problems,such as erosion of surface and well equip-ment,sand acc... Sand production from loosely consolidated reservoirs is one of the critical issues in the oil and gas in-dustry all around the world that can cause many problems,such as erosion of surface and well equip-ment,sand accumulation in wells and operation facilities,buckling of casing in cased-hole wells and well productivity reduction.Sand production control methods include restrictive production rate,mechanical methods(slotted liner,wire-wrapped screen,pre-packed screen,frac-pack,gravel pack,high-rate water pack)and chemical consolidation that chemical method is considered for more effectiveness in sand production alleviation due to increasing formation strength in near wellbore region.This review provides an overview on the laboratory and filed operation investigations of chemical remedy for sand production.Some used chemical agents and more common laboratory tests for evaluating the chemical performance in sand consolidation are introduced in this paper.Furthermore,the results of field operations and in-jections of chemicals into the desired formation are also reported.These results show that the chemical sand consolidation is more effective in newly perforated wells which have no sand production experi-ence and have a production history of less than two years.Finally,it was concluded that the main challenges in applying this method are permeability and capillary force reduction around the wellbore and selective injection into the targeted formation layers. 展开更多
关键词 Sand production Loosely consolidated reservoirs Formation strength Chemical remedy Permeabilityreduction
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