Implementation of Low Cost Technology for Biogas Generation and Reuse of Sludge in Brick Manufacturing

International Journal of Research and Scientific Innovation (IJRSI) | Volume VII, Issue V, May 2020 | ISSN 2321–2705

Implementation of Low Cost Technology for Biogas Generation and Reuse of Sludge in Brick Manufacturing

Manasa S.R.*, Akshatha B.A.
Department of Civil Engineering, NDRKIT, Hassan, India
*Corresponding author

Abstract: Biogas is known as a source of renewable energy and it’s made mostly of methane (60-70%) and a mixture of CO₂ (carbon dioxide), H₂S (hydrogen sulfide), NH₃ (ammonia), and SO₂ (sulfur dioxide). This gas is produced when biological matter (usually cow manure) is decomposed in an environment without the presence of oxygen with the help of bacteria.  It has been popular as a source of energy for over 200 years. In order to generate biogas, the individual has to first build an anaerobic (no oxygen present) digester, or an enclosed tank (usually made of steel), where specific types of organic impurities are placed for bacteria to decompose them. In the environment, it is produced naturally in deep soils, lake bottoms, and wetlands. The dried waste sludge after the production of biogas is reused to produce “EcoFaeBrick“, a quality, easily manufactured, low-cost sustainable building material made from cow dung. The bricks are not only 20% lighter, but they have a compressive strength 20% durable than clay bricks.

Keywords: EcoFaeBrick, Anaerobic, compressive strength, sustainable building material.

I. INTRODUCTION

Green waste is organic material having the high nutritive value to microbes, which can be used for methane production and methane has good calorific value. In other words, it can be used as a domestic fuel. This fact can be understood in current performs of using low calorific inputs like cattle dung, distillery effluent, municipal solid waste (MSW) or sewage, in biogas plants making methane generation highly inefficient. We can make this system extremely efficient by using green waste /vegetables wastes.

Anaerobic digestion is controlled biological degradation process which allows efficient arresting and utilization of biogas (Approximately 60% methane and 40% carbon dioxide) for energy production. There are many reasons affecting the design and performance of anaerobic digestion. Some are related to feedstock characteristics, design of reactors and operation conditions in real time. Physical and chemical features of the organic wastes are essential for designing and operating digesters, because they disturb the biogas production and process stability during anaerobic digestion (Karve, A.D. 2006).

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