Effects of earthworm casts and zeolite on the two-stage composting of green waste
The research paper investigates the impact of earthworm casts (EWCs) and zeolite (clinoptilolite, CL) on the two-stage composting process of green waste (GW). The study aims to enhance composting efficiency and product quality by examining various combinations of EWCs (0.0%, 0.30%, and 0.60%) and CL (0%, 15%, and 25%). The findings reveal that the optimal combination of 0.30% EWCs and 25% CL significantly improves composting conditions, leading to a reduction in compost maturation time from the traditional 90-270 days to just 21 days.
Key results include enhanced thermophilic phase duration, increased microbial activity, improved enzyme activities, and better degradation of cellulose and hemicellulose. The study also highlights the positive effects of EWCs and CL on the physical and chemical properties of the compost, such as bulk density, water-holding capacity, pH, and electrical conductivity. The final compost produced under optimal conditions exhibited high nutrient content and maturity, as indicated by a germination index exceeding 80%, suggesting its suitability as a soil amendment.
The research underscores the potential of using organic and inorganic additives to optimize composting processes, thereby contributing to sustainable waste management practices.
This research paper is significant in the field of waste management and composting as it addresses the growing need for efficient organic waste disposal methods. By demonstrating the effectiveness of EWCs and CL in enhancing composting processes, the study contributes to ongoing discussions about sustainable agricultural practices and environmental protection. The findings offer practical insights for composting facilities, suggesting that the incorporation of specific additives can lead to faster compost maturation and improved product quality. This research not only aids in reducing the environmental impact of organic waste but also promotes the recycling of nutrients back into the soil, thereby supporting sustainable agriculture.
