Pub Date : 2014-03-01DOI: 10.12983/IJSRES-2014-P0094-0106
N. Ibrahim, H. A. Aziz
Natural organic matter (NOM) can be defined as a mixture of complex organic compounds that universally present in natural waters. High NOM content in water strongly impact the water quality and treatment in several ways (e.g. causing colour and odour, filter fouling and increase coagulant dose). Besides that, NOM also acts as the main precursor to disinfectant by products (DBPs) produce from the reaction of NOM and disinfectant during water treatment. DBPs are known to be carcinogenic to human and animals. The formation of DBPs is depending on NOM characteristics. Generally, NOM characteristics are differ according to the water sources. In order to understand NOM properties, NOM fractionation is required and therefore different approaches have been proposed for its characterization. Meanwhile several methods of treatment have been developed to remove or reduce the amount of NOM in drinking water sources to prevent DBPs formation. The aim of this paper is to review and discuss the properties and available treatment techniques for NOM.
{"title":"Trends on Natural Organic Matter in Drinking Water Sources and its Treatment","authors":"N. Ibrahim, H. A. Aziz","doi":"10.12983/IJSRES-2014-P0094-0106","DOIUrl":"https://doi.org/10.12983/IJSRES-2014-P0094-0106","url":null,"abstract":"Natural organic matter (NOM) can be defined as a mixture of complex organic compounds that universally present in natural waters. High NOM content in water strongly impact the water quality and treatment in several ways (e.g. causing colour and odour, filter fouling and increase coagulant dose). Besides that, NOM also acts as the main precursor to disinfectant by products (DBPs) produce from the reaction of NOM and disinfectant during water treatment. DBPs are known to be carcinogenic to human and animals. The formation of DBPs is depending on NOM characteristics. Generally, NOM characteristics are differ according to the water sources. In order to understand NOM properties, NOM fractionation is required and therefore different approaches have been proposed for its characterization. Meanwhile several methods of treatment have been developed to remove or reduce the amount of NOM in drinking water sources to prevent DBPs formation. The aim of this paper is to review and discuss the properties and available treatment techniques for NOM.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"30 1","pages":"94-106"},"PeriodicalIF":0.0,"publicationDate":"2014-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76379028","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}
Pub Date : 2014-02-01DOI: 10.12983/IJSRES-2014-P0049-0055
Dr Ashwini A. Waoo, S. Khare, Sujata Ganguly
In developing countries like India, most of our industries are at the preliminary phase and cannot manage to pay for as invest in waste matter management and pollution control due to little income edge. Enormous number of contaminants and waste materials containing heavy metals are disposed into the biosphere. Remediation of heavy metal contaminated sites using chemical or physical techniques is the most challenging task. Phytoremediation can be used as an alternative remediation and cleaning up techniques. The aim of our research was to identify some interesting accumulators which may associate an important biomass production with an effective absorption and translocation of heavy metals. Among the analyzed heavy metals, Cr had the highest concentrations in all the sampling sites, while Cd had the lowest concentrations. Sediment concentrations in the industrial area are characterized by the high values of Cr and Ni. For phytoremediation purpose Datura inoxia and Lantana camera were studied for in vitro culture and there parameters were compared. The present paper describes a prime and easy-to-use protocol for large scale production of plantlets through shoot tip culture of Datura inoxia, the plant having phytoremediation potential and the method is useful for the ex-situ conservation of other phytoremediational important species.
{"title":"Comparative in-vitro Studies on Native Plant Species at Heavy Metal Polluted Soil Having Phytoremediation Potential","authors":"Dr Ashwini A. Waoo, S. Khare, Sujata Ganguly","doi":"10.12983/IJSRES-2014-P0049-0055","DOIUrl":"https://doi.org/10.12983/IJSRES-2014-P0049-0055","url":null,"abstract":"In developing countries like India, most of our industries are at the preliminary phase and cannot manage to pay for as invest in waste matter management and pollution control due to little income edge. Enormous number of contaminants and waste materials containing heavy metals are disposed into the biosphere. Remediation of heavy metal contaminated sites using chemical or physical techniques is the most challenging task. Phytoremediation can be used as an alternative remediation and cleaning up techniques. The aim of our research was to identify some interesting accumulators which may associate an important biomass production with an effective absorption and translocation of heavy metals. Among the analyzed heavy metals, Cr had the highest concentrations in all the sampling sites, while Cd had the lowest concentrations. Sediment concentrations in the industrial area are characterized by the high values of Cr and Ni. For phytoremediation purpose Datura inoxia and Lantana camera were studied for in vitro culture and there parameters were compared. The present paper describes a prime and easy-to-use protocol for large scale production of plantlets through shoot tip culture of Datura inoxia, the plant having phytoremediation potential and the method is useful for the ex-situ conservation of other phytoremediational important species.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"58 1","pages":"40-55"},"PeriodicalIF":0.0,"publicationDate":"2014-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73084586","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}
Pub Date : 2014-02-01DOI: 10.12983/IJSRES-2014-P0056-0062
K. Obahiagbon, A. Amenaghawon, C. Onyia
The potential use of antimicrobial agents such as ethanol and extract from locally sourced Mitracarpus scaber for the prevention of biodeterioration of crude oil in storage was investigated in this study. Five crude oil samples under various treatment conditions (containing antimicrobial agents) and a control (without antimicrobial agents) were monitored for seven weeks for biodeterioration indicating parameters such as biochemical oxygen demand (BOD), total hydrocarbon content (THC), total microbial count (TMC) and pH. Results obtained for the control experiment indicated biodeterioration of the crude oil sample. This was evident from the variation in the values of BOD, THC, TMC and pH indicating the presence of microbial activity. Results obtained also showed that biodeterioration was mitigated when antimicrobial agents were introduced to the crude oil samples as seen in the stability in the values of BOD, THC, TMC and pH. Of all the samples analysed, sample D containing 100 mL of Mitracarpus scaber extract performed best as evident from the almost constant values of BOD, THC, TMC and pH, indicating the absence of microbial activity.
{"title":"Prevention of Biodeterioration of Crude Oil in Tanks Using Anti-Microbial Agents","authors":"K. Obahiagbon, A. Amenaghawon, C. Onyia","doi":"10.12983/IJSRES-2014-P0056-0062","DOIUrl":"https://doi.org/10.12983/IJSRES-2014-P0056-0062","url":null,"abstract":"The potential use of antimicrobial agents such as ethanol and extract from locally sourced Mitracarpus scaber for the prevention of biodeterioration of crude oil in storage was investigated in this study. Five crude oil samples under various treatment conditions (containing antimicrobial agents) and a control (without antimicrobial agents) were monitored for seven weeks for biodeterioration indicating parameters such as biochemical oxygen demand (BOD), total hydrocarbon content (THC), total microbial count (TMC) and pH. Results obtained for the control experiment indicated biodeterioration of the crude oil sample. This was evident from the variation in the values of BOD, THC, TMC and pH indicating the presence of microbial activity. Results obtained also showed that biodeterioration was mitigated when antimicrobial agents were introduced to the crude oil samples as seen in the stability in the values of BOD, THC, TMC and pH. Of all the samples analysed, sample D containing 100 mL of Mitracarpus scaber extract performed best as evident from the almost constant values of BOD, THC, TMC and pH, indicating the absence of microbial activity.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"12 1","pages":"56-62"},"PeriodicalIF":0.0,"publicationDate":"2014-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74670637","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}
Pub Date : 2014-02-01DOI: 10.12983/IJSRES-2014-P0063-0073
F. Ansari
Distillery effluent is posing threat to the different components of the environment due to indiscriminate use of distillery effluent for irrigation of agricultural field, mainly affecting soil and water quality as the chemicals leaches to the groundwater table. The chemical substances transferred in soil profiles is a major environmental concern because even slow transport through the soil may eventually lead to deterioration of groundwater quality. The study reveals the physico-chemical characterisation of soil horizon of agricultural field which was regularly irrigated with distillery effluent for the observation of leaching effect of distillery effluent in soil horizons and ground water quality. The result showed that all the physico-chemical properties of soil horizons have high content of effluent irrigated soil compared to fresh water irrigated soils. It may be concluded that the higher value and indiscriminate use of distillery effluent on land affects the composition of the soil and groundwater quality due to leaching. The soil horizon showed higher value in surface soil while the values were less in lower soil horizons as compared to unaffected soil.
{"title":"Risk Probability of Soil and Groundwater Pollution Due to Leaching Effect of Distillery Effluent Used for Agricultural Purpose","authors":"F. Ansari","doi":"10.12983/IJSRES-2014-P0063-0073","DOIUrl":"https://doi.org/10.12983/IJSRES-2014-P0063-0073","url":null,"abstract":"Distillery effluent is posing threat to the different components of the environment due to indiscriminate use of distillery effluent for irrigation of agricultural field, mainly affecting soil and water quality as the chemicals leaches to the groundwater table. The chemical substances transferred in soil profiles is a major environmental concern because even slow transport through the soil may eventually lead to deterioration of groundwater quality. The study reveals the physico-chemical characterisation of soil horizon of agricultural field which was regularly irrigated with distillery effluent for the observation of leaching effect of distillery effluent in soil horizons and ground water quality. The result showed that all the physico-chemical properties of soil horizons have high content of effluent irrigated soil compared to fresh water irrigated soils. It may be concluded that the higher value and indiscriminate use of distillery effluent on land affects the composition of the soil and groundwater quality due to leaching. The soil horizon showed higher value in surface soil while the values were less in lower soil horizons as compared to unaffected soil.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"85 1","pages":"63-73"},"PeriodicalIF":0.0,"publicationDate":"2014-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83487502","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}
Pub Date : 2014-02-01DOI: 10.12983/IJSRES-2014-P0043-0048
A. Amenaghawon, O. Osunbor
Crude oil polluted water was treated using a bioremediation strategy encompassing natural attenuation and biostimulation using a mixed microbial culture of Aspergillus niger and Pseudomonas aeruginosa. Four (4) samples of petroleum hydrocarbon polluted water; Control (no nutrient), A (nutrient from NPK 15:15:15), B (nutrient plus aeration), and C (nutrient, aeration and agitation) were monitored for 8 weeks for bioremediation indicating parameters such as Biological Oxygen Demand (BOD), Dissolved Oxygen (DO), Total Hydrocarbon Content (THC) and pH. The results obtained showed an increase in DO levels of 86.4, 87.0 and 87.5 % for samples A, B, and C respectively. The BOD of the samples was observed to decrease in the course of bioremediation with reduction levels of 98.6, 98.7 and 98.8% recorded for samples A, B, and C respectively. Reductions in THC corresponded to 92.3, 93.6, and 94.4% respectively for samples A, B and C. The pH of all samples fell within the acceptable limit of 6-9 as stipulated by regulatory agencies such as the Federal Environmental Protection Agency (FEPA) and the department of petroleum resources (DPR). The final values of BOD and THC fell within the values of 30 and 10 mg/l respectively stipulated by FEPA and DPR with the exception of sample A which had a final THC value of 14 mg/l.
{"title":"Impact of Nutrients, Aeration and Agitation on the Bioremediation of Crude Oil Polluted Water Using Mixed Microbial Culture","authors":"A. Amenaghawon, O. Osunbor","doi":"10.12983/IJSRES-2014-P0043-0048","DOIUrl":"https://doi.org/10.12983/IJSRES-2014-P0043-0048","url":null,"abstract":"Crude oil polluted water was treated using a bioremediation strategy encompassing natural attenuation and biostimulation using a mixed microbial culture of Aspergillus niger and Pseudomonas aeruginosa. Four (4) samples of petroleum hydrocarbon polluted water; Control (no nutrient), A (nutrient from NPK 15:15:15), B (nutrient plus aeration), and C (nutrient, aeration and agitation) were monitored for 8 weeks for bioremediation indicating parameters such as Biological Oxygen Demand (BOD), Dissolved Oxygen (DO), Total Hydrocarbon Content (THC) and pH. The results obtained showed an increase in DO levels of 86.4, 87.0 and 87.5 % for samples A, B, and C respectively. The BOD of the samples was observed to decrease in the course of bioremediation with reduction levels of 98.6, 98.7 and 98.8% recorded for samples A, B, and C respectively. Reductions in THC corresponded to 92.3, 93.6, and 94.4% respectively for samples A, B and C. The pH of all samples fell within the acceptable limit of 6-9 as stipulated by regulatory agencies such as the Federal Environmental Protection Agency (FEPA) and the department of petroleum resources (DPR). The final values of BOD and THC fell within the values of 30 and 10 mg/l respectively stipulated by FEPA and DPR with the exception of sample A which had a final THC value of 14 mg/l.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"9 1","pages":"43-48"},"PeriodicalIF":0.0,"publicationDate":"2014-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84568619","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}
Pub Date : 2014-01-12DOI: 10.12983/IJSRES-2014-P0008-0013
Mohammad Mehrasa, S. R. Zaker, Behrouz Larki, M. Mehmandoust, H. Baghshahi, M. Sekhavati, S. Gavanji
Silver nitrate is an inorganic compound with chemical formula AgNO3. Silver or silver ions have long been used in many areas due to their strong antimicrobial activity against pathogenic microbes such as bacteria, yeast, fungi and algae. The protein Pal (peptidoglycan-associated lipoprotein) is anchored in the outer membrane (OM) of Gram-negative bacteria and interacts with Tol proteins. We used Molegro virtual docker (MVD). The results obtained from docking showed us that the best pose which is derived from MolDock score for Chitinase was -23.4702 with reranking score equal to -33.6883. Bioinformatic studies show that silver nitrate has interaction with protein Pal.
{"title":"Computational Prediction and Analysis of Interaction of Silver Nitrate with Peptidoglycan-Associated lipoprotein (Pal)","authors":"Mohammad Mehrasa, S. R. Zaker, Behrouz Larki, M. Mehmandoust, H. Baghshahi, M. Sekhavati, S. Gavanji","doi":"10.12983/IJSRES-2014-P0008-0013","DOIUrl":"https://doi.org/10.12983/IJSRES-2014-P0008-0013","url":null,"abstract":"Silver nitrate is an inorganic compound with chemical formula AgNO3. Silver or silver ions have long been used in many areas due to their strong antimicrobial activity against pathogenic microbes such as bacteria, yeast, fungi and algae. The protein Pal (peptidoglycan-associated lipoprotein) is anchored in the outer membrane (OM) of Gram-negative bacteria and interacts with Tol proteins. We used Molegro virtual docker (MVD). The results obtained from docking showed us that the best pose which is derived from MolDock score for Chitinase was -23.4702 with reranking score equal to -33.6883. Bioinformatic studies show that silver nitrate has interaction with protein Pal.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"20 1","pages":"8-13"},"PeriodicalIF":0.0,"publicationDate":"2014-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81753105","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}
Pub Date : 2014-01-01DOI: 10.12983/IJSRES-2014-P0014-0028
Ibrahim Medany, M. Shazly, Mahmoud G. El-Sherbiny
Environmental regulations regarding industrial pollution are getting tougher to keep high air quality. The design of proper system to meet specific requirements relays on selection of different filtration components. Components are available in a wide range of designs to meet various requirements of air filtration level, quantity, and characteristics of the contaminants to be removed. An expert system package for the selection of dust collectors' components is developed. The developed package utilizes database as well as knowledge base to aid the selection process based on practice and past experience. Industrial case studies are demonstrated to test the developed package and compare its results against the current systems design. The developed package in one case study estimated a minimum air flow rate of 60000 m 3 /hr, which is 30% higher than the existing value and a static pressure drop due to ducts of about 1900 Pa which is 30 % lower than the current value leading to improved air quality. In another case study the package results indicated the need to minimize the value of air flow to be 2300 m 3 /hr, which is 50% lower than the current value and increase the external static pressure to 1700 Pa which is 70% higher than the existing design value leading to better filtration efficiency.
{"title":"Expert-Based-Computer Aided Design and Component Selection for Dust Collection Systems","authors":"Ibrahim Medany, M. Shazly, Mahmoud G. El-Sherbiny","doi":"10.12983/IJSRES-2014-P0014-0028","DOIUrl":"https://doi.org/10.12983/IJSRES-2014-P0014-0028","url":null,"abstract":"Environmental regulations regarding industrial pollution are getting tougher to keep high air quality. The design of proper system to meet specific requirements relays on selection of different filtration components. Components are available in a wide range of designs to meet various requirements of air filtration level, quantity, and characteristics of the contaminants to be removed. An expert system package for the selection of dust collectors' components is developed. The developed package utilizes database as well as knowledge base to aid the selection process based on practice and past experience. Industrial case studies are demonstrated to test the developed package and compare its results against the current systems design. The developed package in one case study estimated a minimum air flow rate of 60000 m 3 /hr, which is 30% higher than the existing value and a static pressure drop due to ducts of about 1900 Pa which is 30 % lower than the current value leading to improved air quality. In another case study the package results indicated the need to minimize the value of air flow to be 2300 m 3 /hr, which is 50% lower than the current value and increase the external static pressure to 1700 Pa which is 70% higher than the existing design value leading to better filtration efficiency.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"1 1","pages":"14-28"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79467948","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}
Pub Date : 2014-01-01DOI: 10.12983/IJSRES-2014-P0029-0042
N. Omar, M. Ahamad, W. Hussin, N. Samat
This paper tries to highlight on the analysis of the land-use and land-cover changes in Kirkuk city / Iraq that's due to repeated changes in structures of governments, wars and economic blockade over the past three decades that drove to chaos. The Markov-cellular automata model is an important and powerful tool in simulation. In this article a new Markov-CA model was developed based on built-in multi-regression model and multi-criteria evaluation approach to improve the representation of Markov-CA transition rules. Utilised data relate to the environmental and socio-economic are produce criteria layers and weights in order to output the suitability maps via a ranking method for periods 1984, 1990, 2000 and 2010, which have become conditional for the next step of Markov-CA generation. The suitability maps are compared in order to determine the best fit maps based on the values of the root equation (R 2 ). This comparison helpful to the stakeholders make better decisions and the best maps indicated best transition rules, which is represent the core of Markov-CA model. Thus, the resultant of best suitability maps derives a predefined transition rule for the end of Markov-CA model step. The approach used in the present study a mechanism for monitoring the land-use and land-cover changes in Kirkuk depend on Markov-CA is implemented and evaluated thru the different decision maker. The results assert that the model bears a high applicability and flexibility degree in land-use and land-cover changes.
{"title":"Modelling Land-use and Land-cover Changes Using Markov-CA, and Multiple Decision Making in Kirkuk City","authors":"N. Omar, M. Ahamad, W. Hussin, N. Samat","doi":"10.12983/IJSRES-2014-P0029-0042","DOIUrl":"https://doi.org/10.12983/IJSRES-2014-P0029-0042","url":null,"abstract":"This paper tries to highlight on the analysis of the land-use and land-cover changes in Kirkuk city / Iraq that's due to repeated changes in structures of governments, wars and economic blockade over the past three decades that drove to chaos. The Markov-cellular automata model is an important and powerful tool in simulation. In this article a new Markov-CA model was developed based on built-in multi-regression model and multi-criteria evaluation approach to improve the representation of Markov-CA transition rules. Utilised data relate to the environmental and socio-economic are produce criteria layers and weights in order to output the suitability maps via a ranking method for periods 1984, 1990, 2000 and 2010, which have become conditional for the next step of Markov-CA generation. The suitability maps are compared in order to determine the best fit maps based on the values of the root equation (R 2 ). This comparison helpful to the stakeholders make better decisions and the best maps indicated best transition rules, which is represent the core of Markov-CA model. Thus, the resultant of best suitability maps derives a predefined transition rule for the end of Markov-CA model step. The approach used in the present study a mechanism for monitoring the land-use and land-cover changes in Kirkuk depend on Markov-CA is implemented and evaluated thru the different decision maker. The results assert that the model bears a high applicability and flexibility degree in land-use and land-cover changes.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"76 1","pages":"29-42"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80520347","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}
Pub Date : 2013-12-01DOI: 10.12983/IJSRES-2013-P351-356
S. Gavanji, Mohsen Doostmohammadi, A. Mojiri, A. Zand
A major environmental concern due to dispersal of industrial and urban wastes generated by human activities is the contamination of soil. A wide range of inorganic and organic compounds cause contamination, these include heavy metals, combustible and putriscible substances, hazardous wastes, explosives and petroleum products. Major component of inorganic contaminates are heavy metals .Phytoremediation is a group of technologies that used by plants to remove, degrade or immobilize environmental toxins. This technology largely focused on the use of plants for accelerating degradation of organic contaminants. But in addition to use of plant for soil remediation, hyper accumulator plants can be used for recycling of metals from soil. Hyper accumulator plant express special proteins that help them to tolerate the high concentration of metals.in this experiment we discussed the relationship between acyl-CoA-binding protein 2 and lysophospholipase 2 and showed why this two proteins work together.
{"title":"Studying the Relationship between Acyl-CoA-Binding Protein 2 and Lysophospholipase 2 in Arabidopsis thaliana and Their Importance in Recycling of Cadmium","authors":"S. Gavanji, Mohsen Doostmohammadi, A. Mojiri, A. Zand","doi":"10.12983/IJSRES-2013-P351-356","DOIUrl":"https://doi.org/10.12983/IJSRES-2013-P351-356","url":null,"abstract":"A major environmental concern due to dispersal of industrial and urban wastes generated by human activities is the contamination of soil. A wide range of inorganic and organic compounds cause contamination, these include heavy metals, combustible and putriscible substances, hazardous wastes, explosives and petroleum products. Major component of inorganic contaminates are heavy metals .Phytoremediation is a group of technologies that used by plants to remove, degrade or immobilize environmental toxins. This technology largely focused on the use of plants for accelerating degradation of organic contaminants. But in addition to use of plant for soil remediation, hyper accumulator plants can be used for recycling of metals from soil. Hyper accumulator plant express special proteins that help them to tolerate the high concentration of metals.in this experiment we discussed the relationship between acyl-CoA-binding protein 2 and lysophospholipase 2 and showed why this two proteins work together.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"1 1","pages":"351-356"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76286626","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}
Pub Date : 2013-12-01DOI: 10.12983/IJSRES-2013-P357-364
A. Talebi, T. Teng, A. Alkarkhi, Yong Su
A laboratory study on methyl violet removal from aqueous solutions by liquid-liquid extraction system has been carried out, using crude palm oil and soy bean oil as solvent. The concentration of methyl violet has been studied in the range of 100 mg/L to 200 mg/L. The efficiency of dye extraction increased when two extractant di-2-ethylhexyl phosphoric acid and tributhyl phosphate were used as carrier. Under optimized conditions, 82% to 89% dye removal in 5 minutes rapid mix followed by 60 minutes slow mixing was achieved. The aqueous to organic phase volume ratio (A/O) was fixed at 1, pH varied from 1-6 and extraction study was carried out at (TBP): 200mM and (D2EHPA): 75mM.
{"title":"Methyl Violet Removal from Synthetic Wastewater by Liquid-Liquid Extraction using Vegetable Oils as Solvent","authors":"A. Talebi, T. Teng, A. Alkarkhi, Yong Su","doi":"10.12983/IJSRES-2013-P357-364","DOIUrl":"https://doi.org/10.12983/IJSRES-2013-P357-364","url":null,"abstract":"A laboratory study on methyl violet removal from aqueous solutions by liquid-liquid extraction system has been carried out, using crude palm oil and soy bean oil as solvent. The concentration of methyl violet has been studied in the range of 100 mg/L to 200 mg/L. The efficiency of dye extraction increased when two extractant di-2-ethylhexyl phosphoric acid and tributhyl phosphate were used as carrier. Under optimized conditions, 82% to 89% dye removal in 5 minutes rapid mix followed by 60 minutes slow mixing was achieved. The aqueous to organic phase volume ratio (A/O) was fixed at 1, pH varied from 1-6 and extraction study was carried out at (TBP): 200mM and (D2EHPA): 75mM.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"99 1","pages":"357-364"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80626357","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}
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