Thermodynamic and exergoeconomic analysis of energy recovery system of biogas from a wastewater treatment plant and use in a Stirling engine

2016 ◽  
Vol 88 ◽  
pp. 171-184 ◽  
Author(s):  
Antonio Colmenar-Santos ◽  
Gloria Zarzuelo-Puch ◽  
David Borge-Diez ◽  
Concepción García-Diéguez
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Energy Recovery ◽  
Treatment Plant ◽  
Stirling Engine ◽  
Energy Recovery System ◽  
Recovery System ◽  
Exergoeconomic Analysis

scholarly journals Dimensioning of Digestion Chamber for Upgrading of Gas Recovery at Wastewater Treatment Plant

2013 ◽  
Vol 39 (4) ◽  
pp. 105-112 ◽  
Author(s):  
Stanisław M. Rybicki ◽  
Małgorzata Cimochowicz-Rybicka
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Energy Recovery ◽  
Treatment Plant ◽  
Practical Implementation ◽  
Gas Recovery ◽  
Time Prediction ◽  
System A ◽  
Sludge Disposal ◽  
Recovery System

Abstract The paper describes practical results of four-year laboratory studies completed to estimate technically feasible conditions of upgrading an existing sludge disposal system. A minimization of sludge mass and volume together with an energy recovery improvement were main goals of these activities. The way from lab studies and simulations to full scale investments has been shown with a special emphasis on application of respirometric procedure being applied by authors. Proposed was authors’ procedure for an estimation of a digestion time prediction for sludge of specific composition. Investigations completed at existing wastewater treatment plant resulted in practical implementation to be used during the design of upgrading and extension of the digestion and energy recovery system at the plant. It was proved that proposed changes provide close to optimum conditions for process performance and the application of proposed calculation procedures was adopted by design team

scholarly journals ANAEROBIC DIGESTION OF SLUDGE IN WASTEWATER TREATMENT PLANT FOR ENERGY RECOVERY – A CASE STUDY OF HANOI URBAN DISTRICT

2018 ◽  
Vol 54 (2A) ◽  
pp. 21
Author(s):  
Bui Thi Thuy
Keyword(s):  
Wastewater Treatment ◽  
Anaerobic Digestion ◽  
Wastewater Treatment Plant ◽  
Energy Recovery ◽  
Biogas Production ◽  
Treatment Plant ◽  
Waste To Energy ◽  
Urban District ◽  
Additional Energy ◽  
Sludge Stabilization

In a wastewater treatment plant (WWTP) energy optimization is a big concern whilst sludge stabilization and energy recovery by anaerobic digestion implementation has recently gained importance. The calculation of an urban district level (selected as Long Bien) with 352,000 populations showed that with a total energy required of 39,750 kWh per day in WWTP, it could be supplied by utilization of biogas production, varying from 0% to ~ 43.44 % depending upon the non-application or application of anaerobic digestion for sludge treatment. In mesophylic anaerobic digestion, the biogas yields production of the calculated WWTP was obtained at 3,710 m3/day; equal to 8,394 kWh power and 13,919 kWh heat per day. As a conventional treatment process, centrifugal dewatering of sludge required an additional energy of 1,376 kWh per day for recycling, pumping, mixing as well as transporting sludge. The conclusion was that anaerobic digestion can reduce the green-house gases versus conventional dewatering. The results from this research can thus demonstrate the applicability of anaerobic digestion on conversion of waste to energy, looking forward to resource recovery.

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