Application of Local Microorganism (MOL) Based the Waste from Traditional Market for Composting

Abstract

Population growth in Indonesia continues to increase along with human activities that generate increasingly abundant waste, especially organic waste. Waste management aims to improve public health and environmental quality, as well as to turn waste into a resource for producing other products with added value One method of organic waste treatment is composting, which utilizes solid organic waste and local microorganisms (MOL) as composting materials. Local microorganism is a collection of microorganisms derived from natural ingredients that are useful to accelerate the destruction of organic matter, namely the process of decomposition into organic fertilizer compost. The composting step begins with preparing the activator bacteria from the market waste then fermented to MOL, then determining the compost material used and the comparison of the material and MOL for composting for 30 days, and the N, P, K compost testing done on the day -20, 25, and 30. In this study obtained the optimum concentration of MOL addition is 150 ml at 500 grams of fruit peel. The optimum time obtained on the 30th day on the compost of fruit and dried leaf material because the total NPK content obtained has been in accordance with SNI No. 19-1703-2004. Other components contained in the compost are the final pH ranging from 6-7 and the largest amount of methane gas pressure (volume of water) in dried leaves 2 as much as 9.7 ml and the smallest on the skin of 0.6 ml.