REVIEW ON ENERGY GENERATION USING WASTE WATER

Ms. Dhanashri Pande; Prof. A. A. Pande; Prof. R. R. Badnakhe

doi:10.17605/OSF.IO/BM8FK

Authors

Ms. Dhanashri Pande PG Student, M. Arch Landscape, PIADS, Nagpur, Maharashtra, India
Prof. A. A. Pande Assistant Professor, Civil Engineering Department, Sipna College of Engineering and Technology Amravati, Maharashtra, India
Prof. R. R. Badnakhe Assistant Professor, Civil Engineering Department, Sipna College of Engineering and Technology Amravati, Maharashtra, India

DOI:

https://doi.org/10.17605/OSF.IO/BM8FK

Keywords:

Waste Water Stream, Wastewater Treatment Plants (WWTPs), Activated Sludge Process, Mechanical Aeration, Microbial Fuel Cell (MFC), etc.

Abstract

Developments have shown that it is possible to generate sufficient energy from organic material contained in a variety of waste water stream. This is done to reduce the significant portion of the energy used to run the plant.. This waste to energy is environmental friendly solution to the municipal waste water since waste water treatment plants are the largest consumers of energy, however, it is an energy intensive operation. The present work provides an overview of technological measures to increase the self sufficiency of wastewater treatment plants (WWTPs). The operation of WWTPs entails a huge amount of electricity. Thermal energy is also required for pre-heating the sludge and sometimes exsiccation of the digested sludge. On the other hand, the entering organic matter contained in the wastewater is a source of energy. Organic matter is recovered as sludge, which is digested in large stirred tanks (anaerobic digester) to produce biogas. The onsite availability of biogas represents a great opportunity to cover a significant share of WWTP electricity and thermal demands. In foreign countries, widely used WWTP Method is activated sludge process. It is the process that utilizes the mechanical aeration to facilitate oxidation. But, instead of using energy to treat waste water, it is feasible to harness energy from waste as well as treating it using a Microbial Fuel Cell (MFC). MFCs are device that uses microorganisms as biocatalysts to transform chemical energy into electricity.

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