Comparative environmental sustainability study of an improved sewage sludge treatment and sludge reuse system based on emergy analysis in China
Abstract As the significant residuals in the sewage treatment system, sludge treatment and reuse play a pivotal impact on the environmental sustainability study in China. In this paper, two sewage sludge treatment systems have been investigated, calculated, and analyzed, including the conventional t...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-08-01
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| Series: | Applied Water Science |
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| Online Access: | https://doi.org/10.1007/s13201-021-01478-2 |
| _version_ | 1818608880603627520 |
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| author | Junxue Zhang Lin Ma |
| author_facet | Junxue Zhang Lin Ma |
| author_sort | Junxue Zhang |
| collection | DOAJ |
| description | Abstract As the significant residuals in the sewage treatment system, sludge treatment and reuse play a pivotal impact on the environmental sustainability study in China. In this paper, two sewage sludge treatment systems have been investigated, calculated, and analyzed, including the conventional treatment system (Scenario A) and improved reuse system (Scenario B), respectively. The results demonstrate that (1) Compared to Scenario A, Scenario B is a comprehensive system, which integrates a sewage sludge treatment system and a brick production system for sludge recycling. (2) After considering the brick system (scenario B), on the one hand, the sludge treatment capacity has been enhanced and raised sludge utilization; on the other hand, negative influences have also generated due to the non-renewable resources input and several outputs. (3) In Scenario A and Scenario B, the input resources part reflects the main impact (about 59.6% in the entire emergy value). (4) In this new paper, the UEVs are 2.73E + 11sej/kg and 6.29E + 11sej/kg in Scenario A and Scenario B, respectively. (5) The emergy sustainability indexes (ESI) are 0.012292 and 0.00848, which express the weak comprehensive effects in Scenario A and Scenario B. (6) Scenario B has a more extensive range of change than Scenario A because of the more resource input for the sensitivity analysis. Given the all discussions, there are two effective approaches to be used for perfecting environmental sustainability in the Scenario A system and Scenario B system. |
| first_indexed | 2024-12-16T14:49:41Z |
| format | Article |
| id | doaj.art-47563fc1f4f34dd78646cf885cc8451b |
| institution | Directory Open Access Journal |
| issn | 2190-5487 2190-5495 |
| language | English |
| last_indexed | 2024-12-16T14:49:41Z |
| publishDate | 2021-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Applied Water Science |
| spelling | doaj.art-47563fc1f4f34dd78646cf885cc8451b2022-12-21T22:27:37ZengSpringerOpenApplied Water Science2190-54872190-54952021-08-0111911910.1007/s13201-021-01478-2Comparative environmental sustainability study of an improved sewage sludge treatment and sludge reuse system based on emergy analysis in ChinaJunxue Zhang0Lin Ma1School of Architecture, Southeast UniversityEnvironmental School, China University of GeosciencesAbstract As the significant residuals in the sewage treatment system, sludge treatment and reuse play a pivotal impact on the environmental sustainability study in China. In this paper, two sewage sludge treatment systems have been investigated, calculated, and analyzed, including the conventional treatment system (Scenario A) and improved reuse system (Scenario B), respectively. The results demonstrate that (1) Compared to Scenario A, Scenario B is a comprehensive system, which integrates a sewage sludge treatment system and a brick production system for sludge recycling. (2) After considering the brick system (scenario B), on the one hand, the sludge treatment capacity has been enhanced and raised sludge utilization; on the other hand, negative influences have also generated due to the non-renewable resources input and several outputs. (3) In Scenario A and Scenario B, the input resources part reflects the main impact (about 59.6% in the entire emergy value). (4) In this new paper, the UEVs are 2.73E + 11sej/kg and 6.29E + 11sej/kg in Scenario A and Scenario B, respectively. (5) The emergy sustainability indexes (ESI) are 0.012292 and 0.00848, which express the weak comprehensive effects in Scenario A and Scenario B. (6) Scenario B has a more extensive range of change than Scenario A because of the more resource input for the sensitivity analysis. Given the all discussions, there are two effective approaches to be used for perfecting environmental sustainability in the Scenario A system and Scenario B system.https://doi.org/10.1007/s13201-021-01478-2Sewage sludge treatment and reuseEmergy analysisIndicatorsSustainability |
| spellingShingle | Junxue Zhang Lin Ma Comparative environmental sustainability study of an improved sewage sludge treatment and sludge reuse system based on emergy analysis in China Applied Water Science Sewage sludge treatment and reuse Emergy analysis Indicators Sustainability |
| title | Comparative environmental sustainability study of an improved sewage sludge treatment and sludge reuse system based on emergy analysis in China |
| title_full | Comparative environmental sustainability study of an improved sewage sludge treatment and sludge reuse system based on emergy analysis in China |
| title_fullStr | Comparative environmental sustainability study of an improved sewage sludge treatment and sludge reuse system based on emergy analysis in China |
| title_full_unstemmed | Comparative environmental sustainability study of an improved sewage sludge treatment and sludge reuse system based on emergy analysis in China |
| title_short | Comparative environmental sustainability study of an improved sewage sludge treatment and sludge reuse system based on emergy analysis in China |
| title_sort | comparative environmental sustainability study of an improved sewage sludge treatment and sludge reuse system based on emergy analysis in china |
| topic | Sewage sludge treatment and reuse Emergy analysis Indicators Sustainability |
| url | https://doi.org/10.1007/s13201-021-01478-2 |
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