Abstract:
The purpose of this research was to improve the diamond post-mining soil quality using
a bioremediation composting method based on the cow manure and organic waste from
a traditional market. This research was conducted for: 1) identifying the conditions for
temperature, pH and moisture during the composting process; 2) analyzing the difference
of variations in composition and the best composting durations. The bioremediation
method used is open windrow composting, divided into four composition variations,
namely variation A (100% soil); B (75% soil: 25% compost); C (50% soil: 50% compost);
D (25% soil: 75% compost). The variations of composting duration are 15th and 30th
days. From the result of two-way ANOVA test, it can be concluded that there is no
significant difference in the decrease of Fe value due to the variations in composition ratio
and duration of composting.
Keywords: bioremediation, composting, cow manure, Fe, market organic waste
