Heat Recovery from Wastewater—A Review of Available Resource
| Autor: | Himanshu Nagpal, Aonghus McNabola, Jan Spriet, Madhu K. Murali |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Resource (biology)
020209 energy Geography Planning and Development 02 engineering and technology wastewater heat exchanger 010501 environmental sciences Aquatic Science Reuse 01 natural sciences Biochemistry Heat recovery ventilation Heat exchanger 0202 electrical engineering electronic engineering information engineering TD201-500 0105 earth and related environmental sciences Water Science and Technology Waste management Water supply for domestic and industrial purposes business.industry Renewable heat Hydraulic engineering heat pump low-grade heat Wastewater wastewater heat recovery Environmental science Sewage treatment business TC1-978 shower water heat recovery Thermal energy |
| Zdroj: | Water, Vol 13, Iss 1274, p 1274 (2021) |
| ISSN: | 2073-4441 |
| Popis: | The EU Directive 2018/2001 recognized wastewater as a renewable heat source. Wastewater from domestic, industrial and commercial developments maintains considerable amounts of thermal energy after discharging into the sewer system. It is possible to recover this heat by using technologies like heat exchangers and heat pumps; and to reuse it to satisfy heating demands. This paper presents a review of the literature on wastewater heat recovery (WWHR) and its potential at different scales within the sewer system, including the component level, building level, sewer pipe network level, and wastewater treatment plant (WWTP) level. A systematic review is provided of the benefits and challenges of WWHR across each of these levels taking into consideration technical, economic and environmental aspects. This study analyzes important attributes of WWHR such as temperature and flow dynamics of the sewer system, impacts of WWHR on the environment, and legal regulations involved. Existing gaps in the WWHR field are also identified. It is concluded that WWHR has a significant potential to supply clean energy at a scale ranging from buildings to large communities and districts. Further attention to WWHR is needed from the research community, policymakers and other stakeholders to realize the full potential of this valuable renewable heat source. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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