| Autor: |
Lee, Kun-Mo, Yu, Seungho, Choi, Yo-Han, Lee, Myunjoo |
| Předmět: |
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| Zdroj: |
International Journal of Life Cycle Assessment; Jun2012, Vol. 17 Issue 5, p565-579, 15p |
| Abstrakt: |
Purpose: This study assesses the impacts of three different disinfection processes of sewage effluent, namely the electron beam (E-beam), ultraviolet (UV), and ozone systems, on the environment by using life cycle assessment (LCA). Methods: The LCA employed was the comparative LCA which consists of three parts according to life cycle stages. Electricity consumption was the reference flow that can yield 99% disinfection efficiency for microorganisms present in a 1 × 10 m day sewage treatment plant effluent over 20 years. Results: The comparison of the LCA results indicated that the environmental impact of the UV disinfection system was the lowest, followed by the E-beam and ozone disinfection systems. The key issues of the E-beam, UV, and ozone disinfection systems are electricity consumption and SF usage, electricity consumption and UV lamp, and electricity consumption and liquid oxygen feeding system, respectively. Conclusions: Electricity consumption is the key input parameter that determines the LCA results. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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