EFFECTIVENESS ASSESSMENT TREATMENT OF BIOSOLIDS WASTE AND MUSHROOM WASTE BY THE SPECIES PERIONYX EXCAVATUS

Abstract

The efficiency of earthworms in decomposing different substances has been studied over the years, to assess earthworm’s ability and efficiency at vermicomposting process to treat natural and anthropogenic waste. The present study was settled in boxes under controlled conditions with two types of waste (biosolids and mush room waste). Perionyx excavatus treated biosolids waste from Yen Binh Industry Zones in Thai Nguyen, and it was also used in the three samples with 3 concentrations. Measures were taken regarding vermicomposting speed, and parameters as C, N, P, K, pH and moisture. The results showed that earthworm’s treatment increased all the nutrients -N, P and K mainly- in every tested sample, and a better efficiency in the blend of mushroom and biosolids 1:2 (MB₂). It was concluded that using vermicomposting to treat biosolids waste along with mushroom waste, it can increase the nutrients of the final product and that it is feasible to use biosolid waste mixed with mushroom waste to treat organic material with P. excavatus.