Journal of Applied Chemical Science International最新文献

{"title":"ASSESSMENT OF PAINT-PIGMENT DEGRADING MICROORGANISMS FROM PAINT INDUSTRIES EFFLUENT-CONTAMINATED SITES IN ABA, SOUTH-EAST NIGERIA","authors":"U. Okafor, M. Orji","doi":"10.56557/jacsi/2022/v13i27500","DOIUrl":"https://doi.org/10.56557/jacsi/2022/v13i27500","url":null,"abstract":"The potential of microorganisms isolated from paint industry effluent-polluted soils to degrade the constituents of the effluents and contaminant removal efficiency after the remediation period were evaluated. Samples were collected from six different paint industries in Aba. Samples from the various paint industries reveals sample F showed the highest bacterial plate counts of 6.21±0.20 x 104cfu/g while samples B and D had the least bacterial counts of 1.30±0.20 x 104cfu/g and 1.30±0.31 x 104cfu/g respectively. The fungal counts of the polluted soils indicates sample D as having the highest count of 2.30±0.24 x 104cfu/g while sample A had the least count of 1.00±0.30 x104cfu/g. Total Paint Utilizing Fungal (TPUF) counts ranges from 1.23±0.02 x 104cfu/g to 3.45±0.10 x 104cfu/g and showed a significant difference between sample C and the control (p<0.05). The bacterial isolates from the contaminated soil include Pseudomonas spp., Escherichia coli, Citrobacter spp., Klebsiella spp., Proteus spp., Enterobacter spp., Providencia rettgeri, Shigella flexneri, Staphylococcus spp., Streptococcus spp. and Enterococcus spp. while the fungal isolates include Saccharomyces cerevisiae, Rhodotorula species, Rhizopus species, Aspergillus niger, Aspergillus flavus and Penicillum notatum. The counts of actual paint utilizing fungi were relatively lower than the heterotrophic groups. The paint degrading microorganisms isolated from the paint industry effluent polluted soils include paint effluent bacterial degraders: Pseudomonas spp. (33.3%), Escherichia coli(33.3%),, Citrobacter spp. (25%), Klebsiella spp.(25%), Proteus spp.(25%), Enterobacter spp.(12.5%). and Providencia rettgeri(12.5%), While the fungal paint effluent degraders include Geotrichum candidum(33.3%), Pichia kudriavzevii(33.3%), Fusarium sp.(25%), Aspergillus niger(25%), Penicillium funiculosum(25%) and Mucor sp.(12.5%). Geotrichum candidum strain GAD1 (MN63874.1) and Pichia kudriavzevii strain (MK811096.1) showed highest degrees of growth indicated by high turbidities during the screening test. This study showed that majority of the Indigenous organisms has the ability to utilize paints as their sole carbon source hence are the major bioremediating agents in the sampling areas.","PeriodicalId":251966,"journal":{"name":"Journal of Applied Chemical Science International","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116808113","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}

{"title":"REVITALIZING GROUNDWATER AND HYDROCARBON IMPACTED SOIL USING INSITU/EXSITU REMEDIATION TECHNIQUES IN OMKPOBU, RIVERS STATE, NIGERIA","authors":"S. O. Tijani, A. Obafemi, A. Babalola, A. Usman, M. Ogoro","doi":"10.56557/jacsi/2022/v13i27472","DOIUrl":"https://doi.org/10.56557/jacsi/2022/v13i27472","url":null,"abstract":"With all the numerous spills all across Niger Delta ranging from various sources it become imperative for the remediation of the impacted areas. Remediation is means or a process by which an impacted area contaminated by crude oil is restored. Bioremediation could be view from two perspectives which includes Insitu and Exsitu strategies. Both strategies are primarily aimed at removing the contaminants from soil and ground water. While the Insitu strategy address contamination issues in the subsurface the Exsitu strategy address contamination at the surface. Typical examples of the insitu strategies includes Biosparging, Bioventing while that exsitu includes the deployment of landfarming strategies and Biopiling. This research deployed both insitu and exsitu remediation strategy. Specifically, Landfarming as an exsitu remediation techniques was used to address the soil component of the research work. While biosparging remediation strategy was deployed to address contamination within the groundwater. Biosparging and land farming techniques have shown that remediation, especially in terms of groundwater, can be done faster when there are used together. The Exhumed impacted soil was made to undergo steps associated with landfarming techniques. Contaminated soil were exhumed and spread over a prepared bed area for aeration or oxygenation. The spread soil was frequently tilled before there were used to construct windrows to aid the aeration process. The total petroleum hydrocarbons of land farmed soil were drastically reduced before they were returned. These is in line with the view of International Centre for Soil and Contaminated Sites (2006) that ‘’Effective remediation through landfarming will increase microbial activities that will eventually address contamination on soil. Similarly, the impacted ground water also felt the impact of this action and with addition of the sparging operations there were also reduction in the Total Petroleum Hydrocarbon level in the groundwater over the period of the project. The operations of biosparging do not only influence the reduction of Total Petroleum Hydrocarbon (TPH) in the groundwater but also other contaminants of concerns such as benzene.","PeriodicalId":251966,"journal":{"name":"Journal of Applied Chemical Science International","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125593124","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}

{"title":"PHYSICO-CHEMICAL PROPERTIES OF SOIL SAMPLES IMPACTED BY HYDROCARBONS FROM SELECTED SITES IN THE NIGER DELTA REGION OF NIGERIA","authors":"O. S. Omemu, G. Abu, M. Onojake","doi":"10.56557/jacsi/2022/v13i27457","DOIUrl":"https://doi.org/10.56557/jacsi/2022/v13i27457","url":null,"abstract":"This study determined the physio-chemical properties of the soil samples from selected hydrocarbon impacted sites in the Niger Delta region. Standard sampling and analytical methods were employed. The following physio-chemical parameters were analyzed; Sand, Silt, Clay, TOC (%), pH, EC (µs/cm), Av.P (mg/kg), Magnesium (mg/kg), Potassium (mg/kg), Sodium (mg/kg) and Calcium (mg/kg). Findings revealed that the physio-chemical properties of soil in the hydrocarbon impacted sites measured after the biostimulation remediation technique used in Oguta community, the enhanced land farming technique used in Omuwei community and the enhanced natural attenuation technique used in Oporoma community were within the permissible limit of WHO except conductivity (98.62-125.71) which require to be looked into. It further revealed that the physical and chemical properties of soil in selected impacted sites varied across the different sample stations. Based on these findings, it was concluded concluded that these variations observed in this study was due to the inherent environmental condition as at the time of sample collection. It is therefore recommended that relevant agencies should constantly check on the levels of these parameters using the WHO guidelines.","PeriodicalId":251966,"journal":{"name":"Journal of Applied Chemical Science International","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130628105","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}

{"title":"CT SCANNER AS A POWERFUL TOOL FOR MATERIALS INVESTIGATION AND CHARACTERIZATION","authors":"Mohammed Y. Alasqalani, I. Nahhal, Mousa Alnahhal, Mohammed Mousa","doi":"10.56557/jacsi/2022/v13i27405","DOIUrl":"https://doi.org/10.56557/jacsi/2022/v13i27405","url":null,"abstract":"One of the crucial challenges for microscopic imaging techniques was lack of ability to give a comprehensive and undivided view of the whol material to be characterized, which restricts the ability to determine the homogeneity of the material as well as the efficiency of the preparation protocol used. So, it is important to use computerized (or computed) tomography (CT) scanners, as a powerful characterizing technique for materials with a tremendous ability to identify different changes in it with a plethora of qualitative and quantitive data for each whol sample. In this article, we have introduced some important aspects that CT technology can provide to explain some ambiguous aspects in the study of materials, through this technique we determined the best conditions to perform the synthesis procedure that able us to produce fine homogenous material. Also, this technique through 3D modeling can sort the more intensive phases and isolate them. CT scans have many features that can be summarized in the following points: nondestructive, inexpensive, rapid (2sec.), no need for sample preparation, easy to handle the data or images, each sample gives extremely big data, ability to study as much as possible samples at the same time for comparison, 3D images can be modeled using common software.","PeriodicalId":251966,"journal":{"name":"Journal of Applied Chemical Science International","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126760704","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}

{"title":"EFFECT OF DIFFERENT PARAMETERS ON BIO HYDROGEN PRODUCTION FROM WATER HYACINTH – A REVIEW","authors":"Aqib Adnan Shafin, M. Rahman, Md Shamim Hasan, M. Hossen, M. Mahmud","doi":"10.56557/jacsi/2022/v13i17373","DOIUrl":"https://doi.org/10.56557/jacsi/2022/v13i17373","url":null,"abstract":"Biohydrogen production is most important for simultaneous energy generation. Hydrogen (H2) is considered as a suitable substitute source of energy because of its regenerative, carbon neutral and high energy yielding. However, to optimize key factors affecting hydrogen production from water hyacinth by heat treated anaerobic fermentation process. Biological methods is a potential option to meet the growing clean energy needs for hydrogen production. This paper was discussed about key factors affecting namely substrate concentration.","PeriodicalId":251966,"journal":{"name":"Journal of Applied Chemical Science International","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131268114","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}

{"title":"DETERMINATION OF HEAVY METALS IN GELS AND TUBES OF TOOTHPASTE COMMONLY USED IN PORT HARCOURT, RIVERS STATE, NIGERIA","authors":"Osi Valentine, Ekpete A. Ozioma","doi":"10.56557/jacsi/2022/v13i17344","DOIUrl":"https://doi.org/10.56557/jacsi/2022/v13i17344","url":null,"abstract":"The study was carried out to determine the concentrations of metals in the gels and tubes of five toothpaste commonly used in Port Harcourt, Nigeria. The metals analyzed were Fe, Pb, Cu. Cr. Zn, Ni and Cd. The results obtained for the gels showed that Pb and Cu concentrations for all toothpastes were within the WHO permissible limits. The following metals were above the permissible limits in the analyzed T2 gel, Fe (7.06±0.12mg/l), Ni (0.08±0.02mg/l) and Cd (0.13 ±0.1mg/l). A high concentration of Zn (3.93±0.89mg/l) and Ni (0.08±0.02mg/l) were obtained in the T1 gel and for Cr (1.89±0.50mg/l) in T1 tube respectively. The concentration of Ni in T3 gel (0.04±0.0.01mg/l), tube (0.03±0.01mg/l) and T5 gel (0.07±0.02mg/l) is also above the permissible limit. ANOVA was used to determine the relationship in means between the gels and the tubes of the various toothpaste used and it was observed that to a large extent, the concentration of metals in the gel was dependent on the concentration of the metals in the tube. The study showed that the various toothpaste were of low toxicity and poses no threat to the consumers.","PeriodicalId":251966,"journal":{"name":"Journal of Applied Chemical Science International","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131264972","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}

{"title":"COSTUS AFER JUICE EXTRACT EFFECT ON SOME ANTIOXIDANT AND LIVER MARKERS OF TESTOSTERONE PROPIONATE INDUCED PROSTATITIS IN WISTAR RATS","authors":"K. Nwauche, A. Onyebuchi, D. C. Belonwu","doi":"10.56557/jacsi/2022/v13i17310","DOIUrl":"https://doi.org/10.56557/jacsi/2022/v13i17310","url":null,"abstract":"The curative potentials of Costus afer on testosterone induced prostatitis and some biochemical parameters was investigated using rat models. Eighteen (18) male wistar rats were used. The rats were weighed and randomly separated into six (6) groups of 3 rats each and were induced with testosterone propionate (TP). The reference drug Centiflo XL (400mg) was used. Group I was not induced which served as control while group II rats were induced with TP without treatment. Group III rats were induced with TP and administered the standard drug. Group IV, V and VI were given the whole extract (100ml, 200ml and 300ml respectively). The administration, feeding, and housing lasted for twenty-eight (28) days. Qualitative phytochemical analysis of Costus afer revealed the presence of Flavonoids, Saponins, Phenols, Alkaloids, Cardiac Glycosides and the absence of Tanins. Results obtained show that the rats in group IV, V, and VI which were given Costus afer extract at different concentrations had decreased Prostrate specific antigen (PSA), testosterone, and Alkaline Phospatase (ALP) levels, while stress enzyme levels, Aspartate transaminase (AST) and Alanine transaminase (ALT) levels were elevated due to the presence of phenolic compounds in the whole extract of Costus afer. From this study, it can be said that the whole extract of Costus afer could be recommended as an effective drug in the treatment/management of Prostatitis.","PeriodicalId":251966,"journal":{"name":"Journal of Applied Chemical Science International","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123383905","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}

{"title":"THE IMPACT OF PHET INTERACTIVE SIMULATIONS AND POWERPOINT PRESENTATION SLIDE SHOW VISUALISATION ON LEARNING BALANCING OF CHEMICAL EQUATIONS AMONG GRADE 10 PUPILS","authors":"Nicholas Sibinda, O. Shumba","doi":"10.56557/jacsi/2022/v13i17300","DOIUrl":"https://doi.org/10.56557/jacsi/2022/v13i17300","url":null,"abstract":"This study investigated the impact of PhET interactive simulation and PowerPoint presentation slide show visualisation on learning the balancing of chemical equations to grade 10 learners. A pre-test post-test quasi-experimental research design was used. Students in the experimental group were instructed using simulation games while PowerPoint presentation slides with visualisation were used in the comparison group. The post-test results revealed that the PhET Interactive Simulation was more effective compared to the PowerPoint Presentation Slide Show Visualisation. The PhET interactive simulation software application appeared to work better because of the equations that are embedded in it. The group taught using the PhET interactive simulation had attained better attitudes and high achievement scores towards learning of balancing of chemical equations as compared to the group which was taught using PowerPoint presentation slide show visualisation.","PeriodicalId":251966,"journal":{"name":"Journal of Applied Chemical Science International","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132895181","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}