Vol. 9 No. 2 (2024): Waste Management
Published:
08/27/2024
Articles
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Leakage and Flashover Current in the provided Silicon Rubber Coal Dust Pollution (Fly Ash)
Muhammad Bintang Maulana , Rizda Fitri Kurnia Universitas Sriwijaya Indonesia , Syarifa Fitria Universitas Sriwijaya Indonesia , Zainuddin Nawawi IndonesiaThis research study on leakage and flashover currents in silicone rubber treated with coal dust (fly ash) pollutants with variations in the duration of impurity conditioning within 1, 2, 3 days, and no conditioning. This research prepares for testing the RTV 497 silicone rubber test sample which is formed into a sheet with a thickness of 1 mm while the length and width are 50 x 25 mm which is attached with a leaf-like sample electrode system which is designed using the sketch up application with the number of samples of each 5 pieces each for each variation of conditioning carried out, then tested using an Aluminum Tape electrode system with a gap between the Aluminum Tape electrodes of 5 mm. To determine the value of the leakage current that passes through the surface of the Silicone Rubber, voltages of 220 V, 500 V, and 1000 V are applied, left for 1 minute for each voltage application variation to read the value of the current flowing on the sample surface, then the voltage is increased slowly until flashover occurs. The test results showed a leakage current value of 1, 2, and 3 days without conditioning when applying a voltage of 220 V is 34.53; 34.69; 34.81; and 35.09 mA, the same for application at a voltage of 500; and 1000 V that is the leakage current value increases. This is for any current flowing from the conductor to the ground to pass through the outer surface of the insulator. If the surface of the insulator has a layer of contaminants, it can affect the leakage current that flows on the surface. Meanwhile, the flashover test results with the same sample obtained a value of 4112.8; 3819.4; 3676.4; and 3511 V, the data obtained is that the voltage decreases with the longer the conditioning time is carried out since dust contaminants tend to settle and stick to the insulator, which is one of the biggest causes of flashover and failure.Â
Pages: 62-66Views: - Downloads: -Utilization of Horticultural Waste as a Jumputan Batik Dye at MSMEs Wong Kito Gallery
Ira Maya Sari Indonesia , Maya Ulpa , Afrida Rahma Handayani , Puspitahati Puspitahati Sriwijaya University Abstract:  The purpose of this research is to find out and analyze the use of horticultural waste as dyes in the manufacture of natural batik in MSMEs Galeri Wong Kito Palembang city. The research was conducted from September 2023 to February 2024 at MSMEs at the Wong Kito Gallery, Palembang City. The methods in this study were 1) Observed directly to the MSMEs of the Wong Kito Gallery to see the batik production process and the use of horticultural waste dyes, 2) Interviews with batik owners and artisans at Wong Kito Gallery to get information about dyeing techniques,3) Literature Study. Data Analysis was carried out descriptively data in the form of tables, graphs, and qualitative analysis to conclude the effect of natural coloring on the quality of batik based on the results of interviews and observations. The result of this paper were 1) The Pesona Sriwijaya Group is committed to sustainability by strengthening the community and being an example in CSR programs that are not only socially and environmentally responsible, but also provide concrete benefits for people's daily lives. The synergy and collaboration between five groups (Keramasan Crafter, Bukit Crafter, Aksara Group, Indonesian Disabled Women's Association (HWDI), Hijrah), all of which were fostered by Wong Kito Gallery MSMEs, was the foundation for cultural preservation and economic empowerment. Through the Palembang CINDO (Clean batik inative for Indonesia) initiative, which has used batik dyes from horticultural waste and food residues,2).Residues from gambier extract or gambier, has the lowest percentage, which was 8.20% of the total waste used. On the other hand, the highest percentage was found in "Bananas rotten/not harvestable" waste, reaching 24.48%. 3) Types and Utilization of Horticultural Waste for Dyeing Batik Jumputan at MSME Gallery Wong Kito utilizes 4 types of waste, namely Shrimp Shell Dregs, Residues from gambier extract, Leaves of Ketapang, Coconut fiber, Peels and leaves of Agarwood to get a unique motif to preserve ancestral traditions. Suggestion is The need for a waste management strategy by involving the coordination and role of SOEs, the community and academics in collaborating to minimize the disposal of horticultural waste as a useful resource
Pages: 67-76Views: - Downloads: -The Potential of Fast-Growing Tree Species in Biomass and Soil Organic Carbon Stock and Its Implications for Climate Change Mitigation in Western Ethiopia
Mihert Semere Ethiopian Forestry Development ( EFD) Ethiopia , Tatek Dejene Ethiopian Forestry Development ( EFD) , Elizabeth Befikadu Ethiopian Forestry Development ( EFD) Ethiopia , Berhane Kidane Ethiopian Forestry Development (EFD) Ethiopia , Tinsae Bahiru Ethiopian Forestry Development (EFD)Plantations of fast-growing tree species are important in climate change mitigation efforts because of their enormous potential for carbon storage and the potential affected mainly by tree species type and composition, which influence particular carbon pools in the system. This study estimates biomass and soil organic carbon (SOC) under selected fast-growing tree species in Ethiopia's Diksis district, Oromia region. Major parameters, height (H) and diameter at breast height (DBH), were measured in permanently sampled plots (9mx9m) with three replications to evaluate the biomass carbon stock of selected species. Soil samples (0–15 and 15-30 cm) were also collected to determine soil organic carbon (SOC) and bulk density. Above and below-ground biomass (AGB) and (BGB) were calculated using the site and species-specific allometric equations, and SOC was analysed using appropriate procedures in the laboratory. The results showed that the highest total biomass carbon stock was recorded for Eucalyptus globulus (5.7Mg C ha-1), and the lowest was recorded for Eucalyptus grandis (1.2 Mg C ha-1). Amongst the studied tree species, the highest and lowest mean total soil organic carbon (SOC) was recorded for Eucalyptus saligna (60 Mg C ha-1) and Eucalyptus viminalis (35.4 Mg C ha-1), respectively. The study also revealed that plantation sites could enhance carbon stock accumulation in biomass and soil organic carbon. Hence, considering that incorporating fast-growing tree species in plantations is helpful in climate change mitigation strategies is a preeminent approach beyond their economic values.Pages: 77-85Views: - Downloads: -Spatial Dynamics of Mangrove Changes and Their Adaptive Capacity in Kandanghaur District, Indramayu Regency, West Java Province, Indonesia
Sodikin Sodikin Sodikin Universitas Terbuka Indonesia , Fauzi Fahmi PT Geo Alam Teknika Indonesia Indonesia , Asep Andri Astriyandi STKIP Al Amin Indramayu Indonesia , Maitsa Zulfa Husniyyah Pendidikan IPS FITK UIN Syarif Hidaytullah Jakarta IndonesiaThis study aims to analyze mangrove ecosystems' dynamics and adaptive capacity in the Kandanghaur District, Indramayu Regency. This research method uses a spatial approach, collecting mangrove distribution data by analyzing Google Earth satellite images from 2009, 2016, and 2023. Data on environmental characteristics, mangrove vegetation density, and mangrove species identification were collected through direct field ground checks using the line transect method. Data analysis techniques were applied by implementing the mangrove ecosystem's adaptive capacity formulation. The results show that mangroves in Kandanghaur District from 2009 to 2023 increased by 70.03 hectares, and the majority of mangroves are distributed along the coast, water channels, and community ponds with a silvofishery system. The adaptive capacity of mangroves in Kandanghaur District varies from low to high, with high adaptive capacity located in two villages, namely Ilir Village and Parean Girang Village, with adaptive capacity values of 0.66 and 0.63, respectively. Mangroves with medium adaptive capacity are in Bulak Village with an adaptive capacity value of 0.60, and mangroves with low adaptive capacity are in Eretan Wetan and Eretan Kulon Villages with an adaptive capacity of 0.40.Pages: 86-92Views: - Downloads: -The Use of Chemicals and Recycled Oil Palm Plantation Production Waste and Impact on Groundwater Quality
Kalepi Candra Universitas Sriwijaya Indonesia , D. Budianta Universitas Sriwijaya Indonesia , A. x A. Napoleon Universitas Sriwijaya Indonesia , Mirza Antoni Universitas Sriwijaya IndonesiaThe use of wetlands for oil palm plantation is associated with a negative impact on the environment. Meanwhile, oil palm plantation plays a crucial role in supporting the social economy of the community. This study aimed to analyze the productivity of private oil palm plantation in wetlands and the impact on groundwater quality. The experiment was carried out by calculating the amount of production mathematically and taking groundwater samples to be tested in the laboratory. Data were obtained on the amount of PH, BOD, COD, DO, NO3-N, NH3, Cd, Cu, Pb, Zn, CI, and SO42 in groundwater. The results showed an increase in FFB production of up to 42.44%, but there was a change in groundwater quality. Water quality decreased due to an increase in the amount of BOD 312.31%, NO3-N 23.95%, NH3 100%, Cd 166.67%, Cu 433.33%, Pb 200%, Zn 3.800%, Ci 1,672.59%, and SO42 16.19%. Based on the results, it is necessary to increase the amount of compost used while reducing the application of inorganic fertilizers and recycled materials left over from PKS production. Pesticides and herbicides should be used effectively according to standard requirements.Pages: 93-99Views: - Downloads: -Analysis of Policy Strategies To Control The Conversion Of Wetland Rice Land To Non-Agricultural Land Use In Palembang City South Sumatra
Nila Yuliantina Universitas Sriwijaya Indonesia , Andy Mulyana Universitas Sriwijaya Indonesia , Elisa Wildayana Universitas Sriwijaya Indonesia , Andries Lionardo Universitas Sriwijaya Indonesia , Betaria Septiana Intermediate expert agricultural instructor at the Palembang City Food Security Service IndonesiaLand conversion is an activity that changes the land area and also its function into a new area and has another function and has an impact on environmental problems and land potential. The impact of land conversion is the loss of rice fields and causes rice production to decline. Therefore, it is very relevant to analyze the policy strategy of agricultural land conversion to support the control of agricultural land conversion in Palembang City. This research was conducted in Palembang City in 2023 using survey method, with purposive sampling of 23 key informants. SWOT analysis (Strengths, Weaknesses, Opportunities, Threats) was used to answer this research. The results showed aggressive strategies that can be applied to control the conversion of lebak swamp land in Palembang City, namely, maintaining the level of rice productivity along with high demand, accelerating the preparation of Regional Regulations related to Sustainable Food Agricultural Land (LP2B), improving the performance of agricultural extension institutions to supervise and provide counseling, increasing the competitiveness of farmers given the existing potential and creating innovations with superior agricultural product centers in local business development-based areas.
Pages: 100-107Views: - Downloads: -Implementation’study of ISO 14001:2015 in the PT X Textile Industry, Karanganyar Regency, Central Java Using AHP Analysis
Yorra Anggara Putra Universitas Terbuka Indonesia , Hasrianti Hasrianti Universitas terbuka Indonesia , Sherly Ridhowati Universitas Sriwjaya IndonesiaPT X is one of the textile industries engaged in dyeing, printing and finishing and located in Karanganyar Regency, Central Java Province, production activities using various chemicals in PT X tend to reduce and even pollute the quality of the environment around the industrial area with the presence of B3 (Toxic and Hazardous Materials) waste generated. PT X has implemented ISO 9001: 2015 in relation to the quality management system, but in its application has not been efficient in understanding or managing the environmental problems caused so it is necessary to prepare SML (Environmental Management System) implementation of ISO 14001: 2015 in its production activities. The purpose of this study is to analyze the preparation of PT X and the perceptions of stakeholders in the implementation of ISO 14001: 2015 and strategies in its implementation. The research method was conducted with a documentation study, filling out the SML ISO 14001: 2015 checklist, an interview process with 5 stakeholders followed by recommendations for the implementation of environmental sustainability and data analysis using AHP through Expert Choice 11 application to determine the environmental sustainability strategy of SML ISO 14001: 2015. The GAP analysis checklist in PT X shows the SML ISO 14001: 2015 achievement value of 870 points of the total value 990 points so a percentage of 88.62% is obtained with the values of each clause reaching the highest Improvement 95.56%, followed by the Performance Evaluation clause 94.29% and the Operation clause 93.85%, Support 93.68% along with the Organizational Context clause 86.67%, Planning 83.33%, and the lowest is the value of the Leadership clause 72.49%. The results of the synthesis of ISO 14001: 2015 implementation strategies with the AHP method show the highest strategic value in the form of implementation of an Environmental Management System (EMS) with a ratio value of 0.458, followed by Human Resources planning of 0.291 and regulatory improvements of 0.131, while the lowest strategic value of 0.12 is the acquisition of new tools or technology (modernization).
Keywords: Environmental Management System (EMS), ISO 14001:2015, GEMI checklist, AHP
Pages: 108-116Views: - Downloads: -Bioethanol Production From Coconut Coir Using Ozonolysis-Hydrolysis-Fermentation-Distillation-Silica Gel Adsorption Method
Dinah Wika Maharani Universitas Sriwijaya IndonesiaThe utilization of coconut coir as a feedstock for bioethanol production offers an innovative approach to valorize agricultural residues in the South Sumatra region. Given the high lignin content of coconut coir, a lignin removal pretreatment was necessary to enhance the accessibility of cellulose for hydrolysis. This study investigated the impact of ozonolysis duration on lignin and cellulose content, efficacy of silica gel adsorption. The experimental design involved ozonolysis, hydrolysis, fermentation, distillation, and silica gel adsorption. Results revealed that 25 minutes of delignification significantly reduced lignin content by 8,3% while increasing cellulose content by 3,1%. Optimal ozonolysis conditions, coupled with pH stabilization at 4.5 using NaOH, led to enhanced 500 mL bioethanol volume after 7 days fermentation. Application of 10 grams white silica gel for 60 minutes showed an ethanol content of 97% from GC-MS analysis.
Pages: 117-123Views: - Downloads: -Make a Submission
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