Journal of Chemical, Environmental and Biological Engineering最新文献

{"title":"Evaluation of the Fertilizing Power of Sludge from Physicochemical Water Purification Stations: Case of the Yato Station, Littoral-Cameroon","authors":"Yolande Djougo-Jantcheu, B. Ndongo, R. Njila, Kevin Nguedia Djatsa","doi":"10.11648/j.jcebe.20240801.14","DOIUrl":"https://doi.org/10.11648/j.jcebe.20240801.14","url":null,"abstract":"The Yato physicochemical water purification station is located in the commune of Dibombari in the Littoral-Cameroon region. It is one of the largest drinking water production stations in the Central African sub-region. This work aims to evaluate the agronomic power of the sludge from this drinking water production station. To achieve this objective, mixed samples of sludge from sludge treatment basins (taken according to the technique described in GIDS-A003 point 6 as explained in the Solid and pasty waste sampling strategy of the Code of Good Practice No. 2). and primary settling basins (collected in transparent 1.5L polyethylene terephthalate bottles) were analyzed. Likewise, three soil samples (marsh, Point 1 and Point 2) were taken and then sent to the laboratory where physicochemical analyzes were carried out. The characteristics of the samples that were analyzed are: particle size, texture (sand, silt, clay) and physicochemistry (organic matter, CEC, sum of exchangeable bases, calcium, nitrogen, potassium and magnesium). The results obtained show that the soils exposed to contamination from the sludge of the station have better agronomic properties both on a physical level with a stable structure favorable to plant growth and good aeration unlike the soils far from the station which presented a high risk. degradation; that on the chemical level with an optimal cationic balance, a high reserve of exchangeable bases, a strong CEC but average limitations in assimilable phosphorus and pH unlike the soil far from the station which presented an insufficiency of potassium which did not facilitate a balance cationic, a low CEC but a pH above 5.5 which is the value recommended in agronomy. Biochemically, organic matter is above 2% in all soils, a mineralization rate less than 20 favoring the rapid mineralization of carbon and a release of nitrogen available to the plant. These results obtained allow us to conclude that the sludge from the Yato station can be used in agronomy as an organic fertilizer in order to correct the soil structure, the CEC, the cationic balances and also provide the soil with a good base reserve. However, treating this sludge with lime could regulate the pH of the soil and reduce the mobility of heavy metals in the soil.","PeriodicalId":370720,"journal":{"name":"Journal of Chemical, Environmental and Biological Engineering","volume":"53 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140427761","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":"Biotechnological Advancements for Environmental Conservation in East Africa","authors":"Mohamed Said, Ahmed Dahir Isack, Faiz Ul Hassan","doi":"10.11648/j.jcebe.20240801.13","DOIUrl":"https://doi.org/10.11648/j.jcebe.20240801.13","url":null,"abstract":"The environment serves as a critical lifeline for both humanity and diverse biotic organisms, necessitating the imperative of Environmental conservation to safeguard the natural world from the deleterious impacts of human activities. This paper explores the intersection of environmental sustainability and biotechnological advancements in East Africa. In the face of global environmental challenges, the study accentuates the importance of transitioning to eco-friendly industrial processes, with biotechnological tools emerging as sustainable alternatives to traditional methods. The research delves into the multifaceted applications of biotechnology, showcasing its potential to revolutionize the preservation and rehabilitation of contaminated environments, particularly in soil and water. Groundbreaking techniques such as in vitro culture and cryopreservation are highlighted for their efficacy in collecting and conserving genetic resources, particularly for species that pose challenges when conserved as seeds. Plant biotechnology emerges as a singular solution capable of addressing agricultural and food security concerns while simultaneously mitigating environmental issues in East Africa. A pivotal aspect of the examination is the emphasis on multidisciplinary infrastructure, recognizing the need for collaborative efforts to maximize the impact of biotechnological interventions. The paper explores diverse applications, including the role of plant biotechnology in enhancing agriculture, the contributions of bioremediation in ecosystem restoration, the transformative impact of genetic engineering on agriculture, and the potential of synthetic biology in providing renewable energy solutions. The results underscore the critical role played by biotechnology in promoting environmental conservation, fostering sustainable development, and addressing the unique challenges faced by East Africa. The findings contribute to the growing body of knowledge on the nexus between biotechnological innovations and environmental sustainability, providing insights that can inform policies, strategies, and collaborative initiatives aimed at achieving a harmonious balance between human activities and the natural world in the East African context.","PeriodicalId":370720,"journal":{"name":"Journal of Chemical, Environmental and Biological Engineering","volume":"43 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140448946","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":"Effects of NPS and Cattle Manure on Growth, Yield and Yield Components of Garlic (<i>Allium sativum L</i>.) at Guder, West Shewa Zone, Oromia, Ethiopia","authors":"Mulugeta Mitiku, Mosisa Chewaka, Girma Chala","doi":"10.11648/jcebe.20240801.11","DOIUrl":"https://doi.org/10.11648/jcebe.20240801.11","url":null,"abstract":"","PeriodicalId":370720,"journal":{"name":"Journal of Chemical, Environmental and Biological Engineering","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139878035","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":"Effects of NPS and Cattle Manure on Growth, Yield and Yield Components of Garlic (<i>Allium sativum L</i>.) at Guder, West Shewa Zone, Oromia, Ethiopia","authors":"Mulugeta Mitiku, Mosisa Chewaka, Girma Chala","doi":"10.11648/jcebe.20240801.11","DOIUrl":"https://doi.org/10.11648/jcebe.20240801.11","url":null,"abstract":"","PeriodicalId":370720,"journal":{"name":"Journal of Chemical, Environmental and Biological Engineering","volume":"13 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139818369","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 Biochar Application on Soil Acidity Reclamation and Crop Production Improvements: A Review","authors":"Getachew Mulatu","doi":"10.11648/j.jcebe.20230702.12","DOIUrl":"https://doi.org/10.11648/j.jcebe.20230702.12","url":null,"abstract":"","PeriodicalId":370720,"journal":{"name":"Journal of Chemical, Environmental and Biological Engineering","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139208060","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":"Influence of Solar-Exhaust Gas Greenhouse Drying Modes on Viability of Black Nightshade Seeds","authors":"George Onyango Orido, Erick Kiplangat Ronoh, Patrick Ochuodho Ajwang, Benson Baari Gathitu","doi":"10.11648/j.jcebe.20230702.11","DOIUrl":"https://doi.org/10.11648/j.jcebe.20230702.11","url":null,"abstract":": In this study, three distinct and unique modes of greenhouse drying are introduced: solar, solar-exhaust gas","PeriodicalId":370720,"journal":{"name":"Journal of Chemical, Environmental and Biological Engineering","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129805091","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":"Level of Some Heavy Metal Contamination of Water and Sediments of River Pil-Gani Plateau State Nigeria","authors":"Ande Sesugh, Anza Samuel Vaachia, Tyem Danjuma Idris","doi":"10.11648/j.jcebe.20230701.14","DOIUrl":"https://doi.org/10.11648/j.jcebe.20230701.14","url":null,"abstract":": Background: River Pil-gany water just like any other is put to several uses, including human consumption. Recently, contamination and pollution of water resulting from human activities have greatly threatened the quality of water; to a point that despite the abundance of water, its availability for use is challenged. It is therefore pertinent to ascertain the quality of water bodies that have found varied uses and are surrounded by potential contamination sources. Objective : The objective therefore was to ascertain, compare and establish the level of contamination of the water and sediment of Pil-gany with respect to selected heavy metals. Method : The seasonal quality of river Pil-gany; water and sediment was assessed with regards to potential toxic heavy metals, using Atomic Absorption Spectrophotometry (AAS), through sample digestion and analysis. Results : The metals were assessed for samples obtained in December, 2018 and in August, 2019","PeriodicalId":370720,"journal":{"name":"Journal of Chemical, Environmental and Biological Engineering","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122950090","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 Integrated NP and Vermicompost Fertilizer Rate on Yield and Yield Components of Potato (<i>Solanum tuberosum L</i>.) in Western Ethiopia","authors":"Tibebu Solomon Oli","doi":"10.11648/j.jcebe.20230701.13","DOIUrl":"https://doi.org/10.11648/j.jcebe.20230701.13","url":null,"abstract":"","PeriodicalId":370720,"journal":{"name":"Journal of Chemical, Environmental and Biological Engineering","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125092654","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":"Agricultural Biotechnology Solutions to Mitigate Climate Change","authors":"Mulatu Gidi","doi":"10.11648/j.jcebe.20230701.12","DOIUrl":"https://doi.org/10.11648/j.jcebe.20230701.12","url":null,"abstract":"","PeriodicalId":370720,"journal":{"name":"Journal of Chemical, Environmental and Biological Engineering","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122082245","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":"Briquette Potential of Municipal Solid Waste and Agro-Waste as Clean Energy Source and Waste Management: The Case of Boditi Area, Ethiopia","authors":"Eminet Eyasu Gebeyehu, Ashenafi Abebe, Takele Teshome","doi":"10.11648/j.jcebe.20230701.11","DOIUrl":"https://doi.org/10.11648/j.jcebe.20230701.11","url":null,"abstract":"","PeriodicalId":370720,"journal":{"name":"Journal of Chemical, Environmental and Biological Engineering","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139368264","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}