Research journal of chemical and environmental sciences最新文献_第6页

Evaluation of Physico-chemical and Algal Properties in the Estuary Bay of Bietry in the Neighborhood of Port-Bouet Slaughterhouse (Abidjan, Cote D'ivoire) Port-Bouet屠宰场附近Bietry河口湾的理化和藻类特性评价(阿比让，科特迪瓦)

Research journal of chemical and environmental sciences Pub Date : 2017-02-01 DOI: 10.3923/RJES.2017.58.64

Kou Kou, Yapi Armel Cyri, B. Mas, Tidou Sanogo Abi

引用次数: 1

Oxidative Sonication of Estrogen Hormones in Water and Municipal Wastewater 水和城市污水中雌激素的氧化超声处理

Research journal of chemical and environmental sciences Pub Date : 2017-02-01 DOI: 10.3923/RJES.2017.71.81

Gangadhar Andaluri, R. Suri

引用次数: 5

The Future of Environmental Sciences: Tenth Anniversary of the Research Journal of Environmental Sciences 环境科学的未来:《环境科学研究杂志》创刊十周年

Research journal of chemical and environmental sciences Pub Date : 2017-01-01 DOI: 10.3923/rjes.2017.1.4

M. Rosen

引用次数: 0

Application of Response Surface Methodology for Optimization of Ammonia Nitrogen Removal from Aqueous Solutions Using Powdered Activated Carbon 响应面法优化粉末活性炭去除水溶液中氨氮的工艺研究

Research journal of chemical and environmental sciences Pub Date : 2017-01-01 DOI: 10.3923/RJES.2017.36.47

H. Godini, A. Dargahi, M. Mohammadi, A. Mohammadhosseini, S. Mohammadi, Z. Jalilian

引用次数: 5

Fish Diversity Assessment of the Haor Region in Kishoreganj District, Bangladesh 孟加拉国Kishoreganj地区Haor地区鱼类多样性评估

Research journal of chemical and environmental sciences Pub Date : 2017-01-01 DOI: 10.3923/RJES.2017.29.35

M. Hasan, Akm Shafikul, Md. Simul Bhuyan

{"title":"Fish Diversity Assessment of the Haor Region in Kishoreganj District, Bangladesh","authors":"M. Hasan, Akm Shafikul, Md. Simul Bhuyan","doi":"10.3923/RJES.2017.29.35","DOIUrl":"https://doi.org/10.3923/RJES.2017.29.35","url":null,"abstract":"Background and Objective: Fisheries sector play important role in the economy. Diversity status is needed to conserve the fish resources of the haor region. The present study was conducted to assess fish diversity of the Kalai beel and Naoli beel of Karimganj Upazila in Kishoreganj district, Bangladesh. Materials and Methods: Fish samples were collected from the fishermen and local fish market for taxonomic study from December, 2014-November, 2015. Morphometric and meristic characteristics were identified through direct observation and further identification was done following different books. Results: A total of 46 fish species were identified during the study under 17 families. Among 46 fish species, 15 were found belong to Cyprinidae family followed by Bagaridae (4), Channidae (4), Schilbeidae (3), Mastacembelidae (3), Centropomidae (3), Siluridae (2), Anabantidae (2), Palaemonidae (2) and others (8). During the study period, 22 fish species were marked as abundant species, 15 species were marked as rare and 9 species were found as common species. Conclusion: Ecologically, economically and socially haors are playing essential role with its diversified fish resources. Haor fisheries have great impact on the livelihood of the fishermen and provide nutrition to general people. However, the fish diversity is being threatened by anthropogenic activities. Present study emphasized on the conservation of the fish as it is undergone gradual decrease.","PeriodicalId":92133,"journal":{"name":"Research journal of chemical and environmental sciences","volume":"31 1","pages":"29-35"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81853997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Limits Imposed by the Second Law of Thermodynamics on Reducing Greenhouse Gas Emissions to the Atmosphere 热力学第二定律对减少温室气体排放到大气的限制

Research journal of chemical and environmental sciences Pub Date : 2017-01-01 DOI: 10.3923/RJES.2017.18.28

R. Berthiaume, M. Rosen

引用次数: 4

Effects on Environmental Impact and Economics of Component Efficiencies for a Heating System with Seasonal Thermal Storage 季节性蓄热系统组件效率对环境影响和经济性的影响

Research journal of chemical and environmental sciences Pub Date : 2017-01-01 DOI: 10.3923/RJES.2017.5.17

S. Self, S. Koohi-Faye, M. Rosen, B. V. Reddy

引用次数: 0

Dysfunctional Liver and other High Metabolic Organs in Asymptomatic Petroleum Depot Workers in Calabar South-South, Nigeria 尼日利亚卡拉巴南南地区无症状油库工人肝脏及其他高代谢器官功能紊乱

Research journal of chemical and environmental sciences Pub Date : 2015-08-01 DOI: 10.3923/RJES.2015.355.363

Anthony Cemaluk C. Egbuonu, Daniel C. Nkwazema

{"title":"Dysfunctional Liver and other High Metabolic Organs in Asymptomatic Petroleum Depot Workers in Calabar South-South, Nigeria","authors":"Anthony Cemaluk C. Egbuonu, Daniel C. Nkwazema","doi":"10.3923/RJES.2015.355.363","DOIUrl":"https://doi.org/10.3923/RJES.2015.355.363","url":null,"abstract":"The health concerns for petroleum workers warranted this study in asymptomatic exposed (n=64) and control (n=64) groups. The serum activity (IU LG) in the exposed group for alanine amino transferase, ALT (49.25±5.28), aspartate amino transferase, AST (68.23±6.95), alkaline phosphatase, ALP (59.23±7.21) and gamma glutamyl transpeptidase, GGT (36.06±6.99) was comparatively higher (p<0.05) than that in the control (21.56±7.68, 47.89±7.14, 29.53±6.31 and 18.11±4.00, respectively) by 128.43, 42.47, 100.58 and 99.12%. The serum concentration for total bilirubin, TB (22.89±6.78 μmol LG) and conjugated bilirubin, CB (17.65±4.77 μmol LG) in the exposed group was higher (p<0.05) than that in the control group (11.59±2.10 and 7.53±1.71 μmol LG) by 97.50 and 134.40%, respectively whereas the computed TB:CB ratio (1.30±1.62) was lower (p<0.05) than that in the control group (1.54±2.33) by 15.58%. Aside the AST:ALT ratio (1.39±1.26) that was lower (p<0.05) than that in the control (2.22±1.84) by 37.39%, the other observations in the exposed group for computed serum ALT:AST ratio (0.72±2.42), ALT:ALP ratio (0.83±2.33) and CB:TB ratio (0.77±2.72) were higher (p<0.05) than that in the control (0.45±3.45, 0.73±2.04 and 0.65±3.11) by 60.00, 13.70 and 18.46%, respectively. The study suggests dysfunctional liver and other organs, with the attendant health implications in the petroleum depot workers, highlighting the need for health caution and protection.","PeriodicalId":92133,"journal":{"name":"Research journal of chemical and environmental sciences","volume":"71 1","pages":"355-363"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74701871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Efficacy of Water Guard Disinfectant as a Domestic Stored Water Treatment Method in Makurdi Metropolis 水防护消毒剂在马库尔迪城区生活储水处理中的效果分析

Research journal of chemical and environmental sciences Pub Date : 2015-08-01 DOI: 10.3923/RJES.2015.364.369

Ichor Tersagh, Nevkaa Dooshima, Onaji Johnson Peter

{"title":"Efficacy of Water Guard Disinfectant as a Domestic Stored Water Treatment Method in Makurdi Metropolis","authors":"Ichor Tersagh, Nevkaa Dooshima, Onaji Johnson Peter","doi":"10.3923/RJES.2015.364.369","DOIUrl":"https://doi.org/10.3923/RJES.2015.364.369","url":null,"abstract":"The study of the effect of water guard on microorganisms isolated from domestic water collected and stored for use in various homes in Makurdi metropolis was carried out. A total of 80 samples of water were randomly collected from locations in Makurdi which include; high-level, North bank, Wurukum and Wadata and analyzed for bacteria contamination. Microorganisms isolated from the water before treatment include: Escherichia coli (31.92%), Klebsiella spp (11.39%), Diphtheroid spp (13.94%), Staphylococcus aureus (17.89%), Salmonella typhi (9.42%), Enterobacter aerogenes (8.00%) and Streptococcus faecalis (7.44%). The microorganisms isolated after treatment of water with water guard include: Escherichia coli (49.27%), Klebsiella spp (16.79%), Diphtheroid spp (6.57%), Staphylococcus aureus (27.37%). The most prevalent organism in water after treatment was Escherichia coli due to its presence in almost all the locations after treatment. The result shows significant differences in the occurrence of microorganisms present in untreated and treated water samples at p<0.05. Some of the bacteria isolated before treatment of water with water guard were not seen after treatment. Monitoring of the effect of exposure time of the microbes to water guard is advocated.","PeriodicalId":92133,"journal":{"name":"Research journal of chemical and environmental sciences","volume":"72 1","pages":"364-369"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86342492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Degradation of Phenol in Aqueous Solutions Using Electro-Fenton Process 电fenton法降解水溶液中苯酚的研究

Research journal of chemical and environmental sciences Pub Date : 2015-07-01 DOI: 10.3923/RJES.2015.332.341

A. Rahmani, A. Shabanloo, Jamal Mehralipou, Mehdi Fazlzadeh, Y. Poureshgh

{"title":"Degradation of Phenol in Aqueous Solutions Using Electro-Fenton Process","authors":"A. Rahmani, A. Shabanloo, Jamal Mehralipou, Mehdi Fazlzadeh, Y. Poureshgh","doi":"10.3923/RJES.2015.332.341","DOIUrl":"https://doi.org/10.3923/RJES.2015.332.341","url":null,"abstract":"Electrochemical methods as one of the Advanced Oxidation Processes (AOPs), have been applied effectively to degradation of recalcitrant organic in aqueous solutions. In the present study, the performance of Electro-Fenton (EF) method using iron electrodes on the oxidation of phenol was studied. This experimental study was performed in batch reactor and the effect of operating parameters such as solution pH, operating time, applied current, H2O2 and phenol concentration was investigated. In this study the H2O2 is manually added while a disposal iron anode is applied as a ferrous ion source. Experimental data indicated that pH, H2O2 and phenol concentration have principal role in the process. The results show that removal efficiency of phenol decreased with increasing pH, so that the maximum efficiency 26% was obtained at pH 10, also decreasing of H2O2 concentration decreased the efficiency. Optimal condition for removing 100% of phenol was found after 30 min of reaction at pH = 3.0, H2O2 concentration 100 mg LG1 and 5 mA cmG2. Electro-Fenton process using iron electrodes for phenol degradation and remediation of wastewater is a promising process in terms of environmental and low-cost features.","PeriodicalId":92133,"journal":{"name":"Research journal of chemical and environmental sciences","volume":"64 1","pages":"332-341"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81372631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14