Bioskaidžių atliekų kompostavimo technologinių procesų tyrimai

Abstract

The experimental researchwas conducted at Kalvarija Green waste composting site in Kus-liskiii village. The goal of the research was to evaluate the parameters of technological processes of biodegradable waste composting. The research showed that the temperature of the compost depended on the typical phase of the process and the location of measurement - the highest temperature (from 63 to 81 °C) was measured during the thermophilic process in the deep layers of the highest area of the compost. Acidity of the compost pile changed from neutral (pH = 7) in the beginning of composting, became alkaline (pH = 8.0-8.3) during the thermophilic phase of composting, and was decreasing to neutral values (pH 7 - 7.1) during the temperature decreasing phase. Moisture content of the compost was not favourable for the process of composting in the beginning, but increase of the temperature in the compost pile facilitated the increase of moisture content indexes. The highest moisture indexes were measured in the deepest layer of the compost.