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Bio-economy Sustainable Agriculture Strategy In Cirebon Regency Nurjanah, Irma
Jurnal Agrosci Vol 2 No 2 (2024): Vol 2 No 2 November 2024
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/agrosci.v2i2.518

Abstract

The production of national agricultural products in the last 10 (ten) years has fluctuated and tends to decrease. Burning straw waste in rice fields contributes to greenhouse gas emissions, known as one of the causes of global warming that will decrease the quality and quantity of natural resources and impact the decline in agricultural product production. Analyzing these problems, the author conducted a literature review to find good practices based on the latest study's results. The results show that the bio-economy as part of agriculture can be a strategy to mitigate the impact of climate change to support sustainable agriculture. The bio-economy will manage waste into valuable products while reducing dependence on fossil fuels and minimizing environmental impact. To support this, the Regional Head and the Cirebon Regency legislature must draft a regional regulation on the prohibition of burning rice straw waste to support the reduction of greenhouse gas emissions.
Efektivitas Fly Ash Sebagai Adsorben Dalam Menurunkan Chemical Oxygen Demand (COD) pada Air Limbah Pulp and Paper Nurjanah, Irma; Jalius, Jalius; Viareco, Hariestya
Jurnal Pelita Teknologi Vol 18 No 1 (2023): Maret 2023
Publisher : Universitas Pelita Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37366/pelitatekno.v18i1.2922

Abstract

This study aims to determine the characteristics of fly ash as an adsorbent that has been activated and to determine the optimum conditions of fly ash adsorbent to reduce the COD value of pulp and paper wastewater. The characteristics of water content, ash and iodine number were tested. The quality of fly ash adsorbent is done by determining the optimum pH, mass and time. The variations of pH 4,5,6,7,8,9 and 10, mass 0.5 g, 1 g, 1.5 g, and 2 g and contact time variations are 5 minutes, 15 minutes, 30 minutes, 45 minutes and 60 minutes. This research method uses experimental method with Complete Randomized Design analysis by conducting Anova test and Duncan's further test.  The results showed that the test results of the characteristics of water content, ash and iodine number have met SNI 06-3730-1995 regarding technical activated charcoal. The optimum conditions obtained during adsorption consisting of optimum pH was found at pH 4 with % Removal COD as much as 18.1%, the optimum mass obtained was 1 gram with % Removal COD as much as 24.8%, while the optimum time obtained was 15 minutes with % Removal COD as much as 20.38%. The adsorption results show that the decrease in COD of pulp and paper wastewater is still not effective in accordance with PermenLH No. 5 of 2014.