Results 31 to 40 of about 10,203 (246)

Modelling temperature dynamics in sewer systems – comparing mechanistic and conceptual modelling approaches

open access: yesWater Science and Technology, 2021
The vast majority of the energy consumed for urban water services is used to heat tap water. Heat recovery from wastewater is consequently an area of rapidly growing concern, both in research and by commercial interest, promoting the path towards a ...
R. Saagi   +5 more
doaj   +1 more source

Waste Heat and Wastewater Recovery in Textile Processing Industry: A Case Study of Adopted Practices

open access: yesMehran University Research Journal of Engineering and Technology, 2021
Textile wet processes dispose of huge amounts of water and energy in the form of hot wastewater and exhaust gas emissions. A significant amount of water and energy can be conserved by adopting various waste heat and water recovery methods, such as the ...
Tanveer Ahmed Gadhi   +4 more
doaj   +1 more source

Biogas, Solar and Geothermal Energy—The Way to a Net-Zero Energy Wastewater Treatment Plant—A Case Study

open access: yesEnergies, 2021
Wastewater treatment plants designed to meet the requirements of discharging wastewater to a receiving water body are often not energy optimised. Energy requirements for conventional activated sludge wastewater treatment plants are estimated to range ...
Sylwia Myszograj   +3 more
doaj   +1 more source

Thermal use of wastewater – Policy instruments for initialization and potential operating models / Thermische Nutzung von Abwasser – Instrumente zur Verbreitung und mögliche Betreibermodelle

open access: yesDie Bodenkultur, 2016
The heat content of wastewater presents a great but still widely unused potential for energy supply. The thermal energy recovered through heat exchangers and heat pumps can be used for the heating (and cooling) of buildings and even for hot water ...
Kretschmer Florian
doaj   +1 more source

Suitability Pre-Assessment of in-Sewer Heat Recovery Sites Combining Energy and Wastewater Perspectives

open access: yesEnergies, 2020
In many countries around the world heating (and cooling) has been and will remain the biggest energy sector, but it is still widely dominated by fossil energy sources today.
Franz Huber   +3 more
doaj   +1 more source

Toward Sustainability of the Aqueous Phase Reforming of Wastewater: Heat Recovery and Integration

open access: yesApplied Sciences, 2022
Aqueous-phase reforming has been revealed as a novel, interesting and efficient process for the treatment of wastewater containing organic pollutants. However, due to the relatively severe operating conditions (above 15 bar and 200 °C), this process could become economically competitive if any solution for energy or material valorization is implemented.
Francisco Heras   +5 more
openaire   +2 more sources

Plant-wide modelling and analysis of WWTP temperature dynamics for sustainable heat recovery from wastewater

open access: yesWater Science and Technology, 2021
Wastewater heat recovery upstream of wastewater treatment plants (WWTPs) poses a risk to treatment performance, i.e. the biological processes. In order to perform a sustainability analysis, a detailed prediction of the temperature dynamics over the WWTP ...
Magnus Arnell   +4 more
doaj   +1 more source

Advanced solutions to improve heat recovery from wastewater in a double heat exchanger

open access: yesIOP Conference Series: Earth and Environmental Science, 2023
Abstract Reducing energy consumption and CO2 footprint in existing buildings without requiring extensive construction work is one of the biggest challenges facing the globe today. Although heating contributes for the majority of energy use in buildings, residential hot water demand is also relatively high, particularly when daily usage ...
Paul Alexandru Danca   +6 more
openaire   +1 more source

Source-separated wastewater – enabling higher energy recovery

open access: yesEnergy Nexus
This study quantifies the impact of source-separation in heat recovery by comparing greywater in source-separated wastewater treatment plants (WWTPs) versus mixed wastewater in conventional WWTPs as a heat source using an idealized Lorenz heat pump model.
Shuoguang Yang   +7 more
doaj   +1 more source

Investigating the interactions of decentralized and centralized wastewater heat recovery systems

open access: yesWater Science and Technology, 2016
In the urban water cycle there are different sources for extracting energy. In addition to potential and chemical energy in the wastewater, thermal energy can also be recovered. Heat can be recovered from the wastewater with heat exchangers that are located decentralized and/or centralized at several locations throughout the system. It can be recovered
Robert, Sitzenfrei   +2 more
openaire   +2 more sources

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