Economic–environmental analysis of handling biogas from sewage sludge digesters in WWTPs (wastewater treatment plants) for energy recovery: Case study of Bekkelaget WWTP in Oslo (Norway)

Energy ◽  
2013 ◽  
Vol 58 ◽  
pp. 220-235 ◽  
Author(s):  
G. Venkatesh ◽  
Rashid Abdi Elmi
Keyword(s):  
Wastewater Treatment ◽  
Sewage Sludge ◽  
Environmental Analysis ◽  
Energy Recovery ◽  
Wastewater Treatment Plants

Ecotoxicity tests in the environmental analysis of wastewater treatment plants: Case study in Portugal

2009 ◽  
Vol 163 (2-3) ◽  
pp. 665-670 ◽  
Author(s):  
Elsa Mendonça ◽  
Ana Picado ◽  
Susana Maria Paixão ◽  
Luís Silva ◽  
Maria Ana Cunha ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Environmental Analysis ◽  
Wastewater Treatment Plants ◽  
Ecotoxicity Tests

scholarly journals Energy recovery in wastewater treatment systems through hydraulic micro-machinery. Case study

2020 ◽  
Vol 1 (1) ◽  
pp. 15
Author(s):  
Rosa Llácer-Iglesias ◽  
Jose M. Pérez ◽  
Jose Ricardo Satorre-Aznar ◽  
P. Amparo López-Jiménez ◽  
Modesto Pérez-Sánchez
Keyword(s):  
Wastewater Treatment ◽  
Hydrostatic Pressure ◽  
Process Optimization ◽  
Return On Investment ◽  
Energy Recovery ◽  
Wastewater Treatment Plants ◽  
Industrial Use ◽  
Wastewater Treatment Systems

<p class="JAREAbstract">The wastewater treatment plants (WWTP) treat the water from domestic and industrial use so that its discharge, once it passes through them, is harmless to the environment. However, large amounts of energy are necessary to carry out this process. Therefore, energy and process optimization are a key issue within these type of plant. One of the possibilities within the WWTPs is the recovery of hydraulic energy. This paper presents alternatives for the recovery of hydraulic energy, through the use of hydraulic micro-machinery such as PATs or hydrostatic pressure wheels. This type of machinery is capable of recovering a part of that energy that until now it was not possible to recover, in a more economical way and assuming an improvement for plants that have the possibility of installing it. In the here described case study, savings of over 4% were achieved with periods of return on investment of less than 5 years.</p>

Sludge minimization by disintegration at different wastewater treatment plants

2008 ◽  
Vol 3 (1) ◽  
Author(s):  
Luchien Luning ◽  
Paul Roeleveld ◽  
Victor W.M. Claessen
Keyword(s):  
Organic Matter ◽  
Wastewater Treatment ◽  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
New Technologies ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Biological Degradation ◽  
Ongoing Research ◽  
Sludge Minimization

In recent years new technologies have been developed to improve the biological degradation of sewage sludge by anaerobic digestion. The paper describes the results of a demonstration of ultrasonic disintegration on the Dutch Wastewater Treatment Plant (WWTP) Land van Cuijk. The effect on the degradation of organic matter is presented, together with the effect on the dewatering characteristics. Recommendations are presented for establishing research conditions in which the effect of sludge disintegration can be determined in a more direct way that is less sensitive to changing conditions in the operation of the WWTP. These recommendations have been implemented in the ongoing research in the Netherlands supported by the National Institute for wastewater research (STOWA).

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