International Journal of Environmental Engineering and Development最新文献

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Production of Biogas and Compost from Fermented OPEFB used for Straw Mushroom Planting 草菇种植用发酵OPEFB生产沼气和堆肥
International Journal of Environmental Engineering and Development Pub Date : 2023-05-30 DOI: 10.37394/232033.2023.1.1
S. Sarono, Devy Cendikia, S. Astuti, S. Supriyanto
{"title":"Production of Biogas and Compost from Fermented OPEFB used for Straw Mushroom Planting","authors":"S. Sarono, Devy Cendikia, S. Astuti, S. Supriyanto","doi":"10.37394/232033.2023.1.1","DOIUrl":"https://doi.org/10.37394/232033.2023.1.1","url":null,"abstract":"This research aims to determine the effect of adding various decomposers on making biogas and compost from Oil Palm Empty Fruit Bunches (OPEFB) used for straw mushroom production. Method The treatment comprised the addition of five different decomposers. The decomposers used were (1) Control (addition of water), (2) 1,150 grams of cow dung as manure, (3) Waste activated sludge (WAS) from palm oil mill effluent (POME) 700 grams, (4) Giving EM4 68 ml, (5) 2,720 ml of palm oil mill effluent (POME). The parameters observed include temperature, pH, C/N ratio, biogas volume, biogas composition (CH4, CO2, and N2), and compost composition. The results showed that the highest biogas production occurred with the addition of an f EM4 decomposer, and the methane gas content reached 51.2% at 30°C process conditions, pH 7, and C/N ratio of 26.63. The highest biogas production was obtained with the addition of an EM4 decomposer, followed by manure, POME, WAS, and controls. The compost composition closer to SNI requirements was achieved by adding a manure decomposer that produced a C content of 24.63%, N 1.29 %, P 1.57%, K 0.18%, and C/N ratio 20.","PeriodicalId":277698,"journal":{"name":"International Journal of Environmental Engineering and Development","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125302844","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: 0
Update to the Status of Lindeni Tetraphylla (Vander Linden, 1825) (Odonata Gomphidae: Lindenia (De Haan, 1826)) in Uzbekistan, With Special Reference to the Khorezm Region 乌兹别克斯坦Lindeni tetraphyla (Vander Linden, 1825) (Odonata Gomphidae: Lindenia (De Haan, 1826))现状的更新,特别是Khorezm地区
International Journal of Environmental Engineering and Development Pub Date : 2023-05-30 DOI: 10.37394/232033.2023.1.2
Akhmedova Mohkira Shavkatovna, Medetov Maxset Japakovich, Ikram Abdullaev Iskandarovich, Doschanova Manzura Babajanovna, Doschanov Jalolbek Saparboyevich
{"title":"Update to the Status of Lindeni Tetraphylla (Vander Linden, 1825) (Odonata Gomphidae: Lindenia (De Haan, 1826)) in Uzbekistan, With Special Reference to the Khorezm Region","authors":"Akhmedova Mohkira Shavkatovna, Medetov Maxset Japakovich, Ikram Abdullaev Iskandarovich, Doschanova Manzura Babajanovna, Doschanov Jalolbek Saparboyevich","doi":"10.37394/232033.2023.1.2","DOIUrl":"https://doi.org/10.37394/232033.2023.1.2","url":null,"abstract":"Considering that odontological studies have not been adequately conducted in the Khorezm oasis located in the north-western part of Uzbekistan, we presented the obtained results about the state of Lindenia tetraphylla (Vander Linden, 1825) for the last three years. Species L. Tetraphylla was included in the section “Endangered species” (LC- Least concern ver 3.1) of the International Red Book (IUCN). During our researches, this species was recorded in 3 regions of the oasis, as well as in one region of the Republic of Karakalpakstan. The species L. Tetraphylla was found mainly in the protected tugai biotope areas of the oasis.","PeriodicalId":277698,"journal":{"name":"International Journal of Environmental Engineering and Development","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123673953","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: 0
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