Your browser doesn't support javascript.
loading
Energy-Saving Mechanism of Wastewater Treatment Process Adaptation on Natural Temperature Variation: The Case from Coking Wastewater.
Qin, Zhi; Ke, Xiong; Wei, Chaohai; Zhang, Heng; Pang, Zijun; Chen, Acong; Wei, Cong; Luo, Pei; Qiu, Guanglei.
Afiliación
  • Qin Z; School of Environment and Energy, South China University of Technology, Guangzhou 510006, P. R. China.
  • Ke X; School of Environment and Energy, South China University of Technology, Guangzhou 510006, P. R. China.
  • Wei C; School of Environment and Energy, South China University of Technology, Guangzhou 510006, P. R. China.
  • Zhang H; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, P. R. China.
  • Pang Z; School of Environment and Energy, South China University of Technology, Guangzhou 510006, P. R. China.
  • Chen A; School of Environment and Energy, South China University of Technology, Guangzhou 510006, P. R. China.
  • Wei C; School of Environment and Energy, South China University of Technology, Guangzhou 510006, P. R. China.
  • Luo P; School of Environment and Energy, South China University of Technology, Guangzhou 510006, P. R. China.
  • Qiu G; School of Emergent Soft Matter, South China University of Technology, Guangzhou 510006, P. R. China.
Environ Sci Technol ; 58(37): 16399-16409, 2024 Sep 17.
Article en En | MEDLINE | ID: mdl-39235209
ABSTRACT
The cyclical variations in environmental temperature generated by natural rhythms constantly impact the wastewater treatment process through the aeration system. Engineering data show that fluctuations in environmental temperature cause the reactor temperature to drop at night, resulting in increased dissolved oxygen concentration and improved effluent wastewater quality. However, the impact of natural temperature variation on wastewater treatment systems and the energy-saving potential has yet to be fully recognized. Here, we conducted a comprehensive study, using a full-scale oxic-hydrolytic and denitrification-oxic (OHO) coking wastewater treatment process as a case and developed a dynamic aeration model integrating thermodynamics and kinetics to elucidate the energy-saving mechanisms of wastewater treatment systems in response to diurnal temperature variations. Our case study results indicate that natural diurnal temperature variations can cut the energy consumption of 660,980 kWh annually (up to 30%) for the aeration unit in the OHO system. Wastewater treatment facilities located in regions with significant environmental temperature variation stand to benefit more from this energy-saving mechanism. Methods such as flow dynamic control, load shifting, and process unit editing can be fitted into the new or retrofitted wastewater treatment engineering.
Asunto(s)
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Temperatura / Eliminación de Residuos Líquidos / Aguas Residuales Idioma: En Revista: Environ Sci Technol Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Temperatura / Eliminación de Residuos Líquidos / Aguas Residuales Idioma: En Revista: Environ Sci Technol Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos