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Physicochemical Composition of the Household Solid Waste and Prospect for Biogas Production

A. B. Thakur
Department of Environmental Sciences, Jahangirnagar University, Savar, Dhaka- 1342

S. Y. Rikta
Department of Environmental Science, Bangladesh University of Professionals, Mirpur, Dhaka-1216

N. J. Easha
Department of Environmental Sciences, Jahangirnagar University, Savar, Dhaka- 1342

M. A. B. Siddik
Department of Environmental Sciences, Jahangirnagar University, Savar, Dhaka- 1342

M. K. Uddin*
Department of Environmental Sciences, Jahangirnagar University, Savar, Dhaka- 1342

Abstract/ Executive Summary:

Solid waste management is now one of the big challenging issues in Bangladesh. With increasing population, volume of solid waste is increasing enormously. Production of biogas from organic solid waste is an environment friendly energy source as well as great management strategy of solid waste. The purpose of this current study is to determine the physicochemical composition of solid waste to determine the prospect of biogas production. Results reveal that, temperature and pH of the solid waste should be controlled for the maximum production of biogas. On the other hand, collected solid waste samples contained sufficient amount of moisture for the production of biogas. Appropriate temperature controlling system and buffer for pH maintenance can play a great role to maximize biogas production.

Keywords: Bangladesh, Biogas, pH, Physicochemical composition, Solid waste, Temperature

Location: Department of Environmental Sciences, Jahangirnagar University, Savar, Dhaka- 1342

Start Date:

End Date:

Program Area: Resource Development and Management

Commodity: Waste

Objectives:

Present study was focused on to identify the general physicochemical composition of household solid waste to determine the potentiality of biogas production.

Methodology:

Sample Collection To collect solid waste samples, whole year was divided into three seasons; i) dry winter (October-March) ii) humid summer (March-June) and iii) rainy season (June-October). Total 72 solid waste samples were collected from Jahangirnagar University solid waste management biogas plant, Savar, Dhaka. Among 72 samples, 36 samples were collected during dry winter season, 24 samples were collected in humid summer and 12 samples were collected during rainy season. Physicochemical Analysis The pH of the solid waste samples were measured using Soil pH and Moisture Tester (Model DM-15), atmospheric temperature and sample temperature were measured using thermometer. Moisture content of the each sample was determined by oven drying. This test was used to determine the water content of solid waste by drying a sample to constant mass at 60°C temperature. Samples were dried in oven until they were completely dried. Initial weight of the sample (before drying) and final weight (after drying) were taken. The water content of a given sample was defined as the ratio, expressed as a percentage, of the mass of the water to the mass of the solid waste.

Source of Information: J. Environ. Sci. & Natural Resources, 9(2): 151-154, 2016 ISSN 1999-7361

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Production of biogas from solid waste is a good alternative strategy of solid waste management. Present study showed that, sample pH and temperature were not in the optimum condition for biogas production which may hamper the gas production efficiency. Proper buffering system and temperature regulation may solve this problem. Therefore, higher research is needed on the temperature and pH controlling systems in digester.

Knowledge Management: Journal