PENGGUNAAN DOLOMIT (MgCa(CO3)2) SEBAGAI PENSTABIL PH PADA KOMPOSTING SAMPAH DAPUR BERBASIS DEKOMPOSISI ANAEROB DAN AEROB

Abstract

Backgrounds. Composting is one way to reduce waste and add something beneficial to the earth and health. It is very important to analyze the quality of compost before adding compost to the soil. pH value is one of the indicators of quality compost. The pH value is an indicator of the acidity or alkalinity of the maturity compost.Objectives. The objective of this research is to analyze pH value compost which added dolomite and without dolomite, compost quality and reduces waste.Methods. Anaerobic and aerobic composter modification from reuse plastic mineral drinking water 19 litter. The method of this research is experimental design.The row organic materials are 3 kg kitchen waste, fruits waste 1 kg (composter anaerobic 1 and aerobic 3) as control and added dolomite 0,3 kg (composter anaerobic 2 and aerobic 4 ) as treatment.Results. The row material in the control and treatment showed that temperature at 20.2 °C and 25°C; pH value at 4.3 and 5.6; moisture at 86.3 and 88.9; carbon into nitrogen (C/N) ratios 23.4 and 14.05. Maturity compost showed temperature and pH value are at 20°C and 6.0 (composter 3) and at 2.5 °C and 7 (composter 4). Compost Quality analyzed in NPK. The control showed NPK at 0,41; 0.1758; 0,125 (composter 1); 1.42; 0.208; 0.151 (composter 3). The treatment showed NPK at 0.97; 0,0502; 0.124 (composter 2); 1,04; 0.082; 0,222 (composter 4). Waste reduction at 93% (composter 1), 95% (composter 2), 60% (composter 3), 96,8%(composter 4).Conclusions. Dolomite is pH stabilization on household waste and Effective to reduce waste.

Pemanfaatan Limbah Kotoran Sapi Menjadi Pupuk Organik Dalam Upaya Peningkatan Perekonomian Gapoktan Desa Sambirembe

“…Proses pembuatan pupuk dimulai dengan pencampuran dolomit dan stardeck dengan perbandingan 4:1. Penambahan dolomit pada proses pengomposan diperkirakan mampu mempercepat pengomposan, membuat kompos lebih stabil, lebih cepat matang (Moelyaningrum dkk., 2013) [8]. Stardek merupakan biostarter yang dalam pembuatan pupuk organik berperan sebagai pengurai yang mempercepat proses fermentasi (Sukmawati dkk., 2019) [9].…”