Environmental Management
A.D. Santoso; F.D. Arianti; E.S. Rohaeni; B. Haryanto; M.D. Pertiwi; L.P. Panggabean; A. Prabowo; S. Sundari; S.P. Wijayanti; I.N. Djarot; F.D. Kurniawati; F.L. Sahwan; T. Prasetyo; A. Barkah; T.A. Adibroto; R. Ridlo; I. Febijanto; A.A. Wasil; S. Lusiana; R. Rosmeika; R.B. Heryanto
Abstract
BACKGROUND AND OBJECTIVES: Substantial quantities of livestock waste and organic pollutants, such as nitrogen and phosphate, which pose environmental risks are generated from agriculture activities. A combination of paunch manure and rice straw is used as organic fertilizer. Therefore, this study confirmed ...
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BACKGROUND AND OBJECTIVES: Substantial quantities of livestock waste and organic pollutants, such as nitrogen and phosphate, which pose environmental risks are generated from agriculture activities. A combination of paunch manure and rice straw is used as organic fertilizer. Therefore, this study confirmed sustainability of organic fertilizer from paunch manure and rice straw waste.METHODS: Data were collected through focus group discussions and the closure of questionnaires which contained 29 attributes related to environmental, economic, social, and technological dimensions. The data collected was analyzed using the Multidimensional Scaling method, Rapfish software, and Monte Carlo analysis to ascertain the level of sustainability status and leverage attributes, and examine scoring errors and variations.RESULTS: Sustainability index for organic fertilizer production was 74.55 percent. The result showed that the method contributed to the growth of sustainability in various operational phases, including the processing and commercialization of organic fertilizer. According to analysis of the four dimensions, the environmental dimension held the highest leverage value at 90.1 percent, followed by social, economical, and technological dimensions at 70.50 percent, 63.69 percent, and 73.93 percent, respectively. This study identified seven leverage attributes that are very influential to sustainability of organic fertilizer production. These include water use and raw material efficiency, potential business scale increase, market absorption, the potential for public unrest, the manager or worker level of expertise in the manufacture of organic fertilizer as well as the process used to determine its quality and output.CONCLUSION: The proposed inquiry conducted within the context of this study identified the pivotal factors that influenced organic fertilizer supply framework as the quality, quantity, and market absorption of organic production. As a result, the o use of agricultural waste as a valuable addition to a perfect social, economical, and technological development system needs to be encouraged. The study is significant because it offered information about the viability of producing organic fertilizer in Indonesia, which the government and other stakeholders may use to guide their policies and programs.
Environmental Engineering
A. D. Santoso; T. Handayani; D. Pinardi; K. Kusrestuwardani; N. Widyastuti; I. N. Djarot; J. Haryanti; A. I. Sitomurni; H. Apriyanto
Abstract
BACKGROUND AND OBJECTIVES: Palm oil mill effluent is a liquid waste produced at a palm oil mill industry during the production process containing abundant organic pollutants such as nitrogen and phosphorus that will be harmful to the environment. However, palm oil mill effluent as a nutrient for the ...
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BACKGROUND AND OBJECTIVES: Palm oil mill effluent is a liquid waste produced at a palm oil mill industry during the production process containing abundant organic pollutants such as nitrogen and phosphorus that will be harmful to the environment. However, palm oil mill effluent as a nutrient for the growth of microalgae has the potential for pollutant removal as well as algae biorefinery products such as biofuel, functional food and many others. This research objectives to analyze the sustainability of the microalgae biomass production for bio-refinery based on the sustainability index assessment. METHODS: The primary data was compilated via the questionnaires to researchers in the community of microalgae as well as scientific judgment by experts as respondents. Data is processed and analyzed using the multidimensional scaling Rapfish program. Data analyzed was conducted by analyzing four dimensions: social, economic, ecological, and technological dimensions which consisting of 47 attributes.FINDINGS: The result showed that the sustainability index calculated was 73.53 percent (good), which indicates the process has the potential to be developed while paying attention to leverage factors in every dimension of the sector. Analysis of each dimension on the 4 dimensions shows that the environment dimension is lowest in 67.30 percent, while the economy, technology and social dimension are 70.99 percent, 73.67 percent and 82.17 percent, respectively. Some leverage attributes that require more attention in order to improve sustainability are management experience and skills (in environment dimension), involvement of family member (in the social dimension), the productivity level (in economic dimension), and management of experience and skill (technological dimention).CONCLUSION: Based on the prospective analysis, it is known that there are 4 key factors or dominant factors that are very influential in the microalgae supply system, namely production, productivity, land conversion, consumption per capita and population. It is still necessary to do further research for the utilization of microalgae biomass into value-added products with an optimal, technically, economically, environmentally and socially sustainable system. The study provides insights on the feasibility of the proposed sustainable concept in Indonesia for the government to arrange policies and programs.