Life Cycle Assessment of Upgrading Primary Wastewater Treatment Plants to Secondary Treatment Including a Circular Economy Approach
| Autor: | Mohamed K. Mostafa, Mona M. Galal, Karim M. Morsy, Khaled Z Abdalla |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Secondary treatment
lcsh:GE1-350 Energy recovery 020209 energy Circular economy 02 engineering and technology 010501 environmental sciences 01 natural sciences 0202 electrical engineering electronic engineering information engineering Environmental science Sewage treatment Environmental impact assessment Environmental planning Life-cycle assessment lcsh:Environmental sciences 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Air, Soil and Water Research, Vol 13 (2020) |
| ISSN: | 1178-6221 |
| Popis: | Although significant progress has been achieved in the field of environmental impact assessment in many engineering disciplines, the impact of wastewater treatment plants has not yet been well integrated. In light of this remarkable scientific progress, the outputs of the plants as treated water and clean sludge have become potential sources of irrigation and energy, not a waste. The aim of this study is to assess the environmental impacts of upgrading the wastewater treatment plants from primary to secondary treatment. The Lifecycle Assessment Framework (ISO 14040 and 14044) was applied using GaBi Software. Abu Rawash wastewater treatment plant (WWTP) has been taken as a case study. Two scenarios were studied, Scenario 1 is the current situation of the WWTP using the primary treatment units and Scenario 2 is upgrading the WWTP by adding secondary treatment units. The study highlighted the influence and cumulative impact of upgrading all the primary WWTPs in Egypt to secondary treatment. With the high amount of energy consumed in the aeration process, energy recovery methods were proposed to boost the circular economy concept in Abu Rawash WWTP in order to achieve optimal results from environmental and economic perspectives. |
| Databáze: | OpenAIRE |
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