Pub Date : 2023-05-30DOI: 10.37394/232033.2023.1.1
S. Sarono, Devy Cendikia, S. Astuti, S. Supriyanto
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.
{"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}
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.
考虑到在乌兹别克斯坦西北部的Khorezm绿洲没有进行充分的牙科学研究，我们提出了过去三年关于Lindenia tetraphyla (Vander Linden, 1825)状态的获得结果。物种L. tetraphyla被列入国际自然保护红皮书(IUCN)“濒危物种”(LC- Least concern ver 3.1)。在我们的研究中，该物种在绿洲的3个地区和卡拉卡尔帕克斯坦共和国的一个地区都有记录。四叶草主要分布在绿洲土改保护区。
{"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}
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