A review on waste activated sludge pretreatment for improved volatile fatty acids production and their upcycling into polyhydroxyalkanoates

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 142562 - 142562

Published: March 1, 2025

Language: Английский

---

Destruction of sludge floc and extracellular polymeric substances structure by natural deep eutectic solvent with thermal treatment assistant for synergistic promotion of dewaterability and protein recovery from waste-activated sludge

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116702 - 116702

Published: April 1, 2025

Language: Английский

---

Thermal Disintegration of Waste-Activated Sludge

Energies, Journal Year: 2024, Volume and Issue: 17(17), P. 4447 - 4447

Published: Sept. 5, 2024

The effective management of waste-activated sludge (WAS) presents a significant challenge for wastewater treatment plants (WWTPs), primarily due to the sludge’s high content organic matter, pathogens, and hazardous substances such as heavy metals. As urban populations industrial activities expand, increasing volume WAS has intensified need sustainable solutions. Conventional approaches, landfilling anaerobic digestion, are frequently ineffective resource-intensive, particularly when dealing with protective extracellular polymeric (EPS) that render resistant biodegradation. Thermal pretreatment methods have gained attention their ability enhance biodegradability sludge, improve dewaterability, facilitate resource recovery. These processes function by breaking down complex structures within thereby its accessibility subsequent treatments digestion. integration thermal chemical can further optimize process, resulting in higher biogas yields, reduced pathogen content, lower environmental risks. While disintegration is energy-intensive, advancements energy recovery process optimization made it more viable environmentally friendly option. This approach offers pathway efficient practices, which align goals reducing waste complying stricter regulations.

Language: Английский

---

Enhanced volatile fatty acids production in thermal hydrolysis pretreatment with constant pH regulation: Effects evaluation and mechanism elucidation

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(6), P. 114830 - 114830

Published: Nov. 17, 2024

Language: Английский

---