Kitchen Waste Disposal and Management Practices in Urban Region of Bangladesh through Barrel Composting System
Journal Title: Grassroots Journal of Natural Resources - Year 2019, Vol 2, Issue 04
Abstract
The present paper is based on a study that was performed to assess the kitchen waste management through barrel composting system in order to produce organic fertilizer, and to investigate the physicochemical properties (pH and moisture content) including nutrient contents (OC, N, P, K and S) and heavy metal concentration (Pb, Cd and Cr) of the produced organic fertilizer during the period from July 2016 to June 2017 in the urban area of Tangail region. Kitchen wastes were collected twice in a week for 6 months from 2 halls of Mawlana Bhashani Science and Technology University (MBSTU) and 2 wards of Tangail municipality and divided into 2 phases. About 5.8 kg organic fertilizer was produced from 178.52 kg kitchen waste, which was highly enriched with nutrients. The pH of the composts was increased and moisture contents (67 to 71% in 1st phase and 36 to 44% in 2nd phase) were decreased with duration and waste dried up period. Finally, moisture content ranged from 23 to 31%. The produced organic fertilizer contained organic carbon (24.42 to 27.68%), total nitrogen (2.035 to 2.533%), C/N ratio (10.07 to 12), phosphorus (0.735 to 0.872%), potassium (2.83 to 3.89%) and sulphur (0.578 to 0.68%). The Pb concentration exceeded in green barrel, whereas it was negligible in black barrel. The Cd and Cr concentrations in both types of barrels were within permissible level.
Authors and Affiliations
Mohammad Rasel Mahmud, Md. Sirajul Islam, Nowara Tamanna Meghla, Md. Humayun Kabir, Muhammad Jasim Uddin
Keywords
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- EP ID EP695114
- DOI 10.33002/nr2581.6853.02041
- Views 135
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