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Journal of Industrial and Environmental Chemistry
|
Volume 2
GREEN CHEMISTRY &
TECHNOLOGY
7
th
International Conference on
J u n e 1 8 - 2 0 , 2 0 1 8 | D u b l i n , I r e l a n d
Christos Boukouvalas et al., J Ind Environ Chem 2018, Volume 2 | DOI: 10.4066/2591-7331-C1-003
LIFE CYCLE ASSESSMENT (LCA)
AND ECONOMIC EVALUATION OF
TREATMENT OF WASTEWATER.
COMPARISON OF TWO DIFFERENT
PROCESS LINES
Christos Boukouvalas
1
, V Oikonomopoulou
1
, A Damaskinos
1
,
M Kafyra
2
, P Stavrakakis
2
and
M Krokida
1
1
National Technical University of Athens, Greece
2
KPAD Ltd., UK
T
he aim of the current study was the evaluation of the environmental
impacts and the economic performance associated with the
wastewater treatment in two typical plants. In the first plant, dewatered
sludgeissubjectedtoanaerobicdigestionandtheresultedbiogasistreated
in cogeneration unit for the production of electricity and heat. The whole
process line, including sludge thickening, anaerobic digestion, biomass
post-treatment, as well as conversion of biogas to energy was taken into
consideration for the evaluation of the environmental performance. In
the second plant, the sludge is incinerated for heat production. Sludge
thickening and incineration processes were evaluated. The Life Cycle
Assessment was carried out using GaBi software. Various environmental
impact categories, such as global warming, acidification, eco-toxicity
and eutrophication were examined. In parallel, preliminary economic
evaluation for the two plants was performed, for the determination of
the cost of the various treatment technologies, including operation and
maintenance stages. The results of the present study showed different
environmental impacts and economic performance for the two plants.
The different environmental footprint and cost analysis indicate the
importance of choosing the most suitable treatment technology.
Christos Boukouvalas is a Laboratory Teaching
Staff in the Sector of Analysis, Design and De-
velopment of Processes and Systems, School
of Chemical Engineering NTUA, Greece. His
research interests reflect in his wide range of
publications in various national and internation-
al journals.
bouk@chemeng.ntua.grBIOGRAPHY