Life cycle assessment of constructed wetlands for tertiary treatment of wastewater effluents in the cold-temperate zone

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Abstract

This study performed a life cycle assessment on a constructed wetland designed for the treatment of municipal wastewater effluent in the Cold-Temperate Zone. The construction phase emerged as the primary driver of environmental impact, accounting for 71.99%. While the operational phase contributed substantially to Global Warming Potential. Two biomass utilization scenarios were proposed to enhance sustainability: animal feed (A), biofertilizer and biogas (B). Using the IMPACT 2002+ method, A performed worse than B in Human Health, Climate Change, and Resources, mitigating only 17%, 23%, and 83% of B’s impact reduction, respectively. In contrast, A outperformed B in Ecosystem Quality (1.5 times), while B was 10% more effective in reducing energy consumption under the CED method. These findings contribute to improved design and operation practices of constructed wetlands in cold-temperate regions that align with long-term ecological and resource conservation goals.

Item Type:	Article
Uncontrolled Keywords:	Life cycle assessment; Constructed wetlands; Cold-temperate zone; Biomass
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TD Environmental technology. Sanitary engineering
Faculty/Division:	Institute of Postgraduate Studies Faculty of Civil Engineering Technology
Depositing User:	Mrs Norsaini Abdul Samat
Date Deposited:	17 Mar 2025 01:52
Last Modified:	17 Mar 2025 01:52
URI:	http://umpir.ump.edu.my/id/eprint/44013
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