Achievement of waste sludge deep dehydration under acidic conditions with polydimethyldiallylammonium chloride and ferric chloride: performance and mechanism

RSC Advances, Год журнала: 2024, Номер 14(21), С. 15031 - 15038

Опубликована: Янв. 1, 2024

The biological treatment of wastewater generates a substantial amount waste sludge that requires dewatering before final disposal.

Язык: Английский

Synergetic association of hydroxyapatite-mediated biofilm and suspended sludge enhances resilience of partial nitrification/anammox (PN/A) system treating high-strength anaerobic membrane bioreactor (AnMBR) permeate

Bioresource Technology, Год журнала: 2024, Номер 412, С. 131391 - 131391

Опубликована: Авг. 30, 2024

A single-stage partial nitrification/anammox (PN/A) system with biocarriers was used to treat the permeate from an anaerobic membrane reactor (AnMBR) processing organic fraction of municipal solid wastes. The suitable Ca/P ratio and high pH in AnMBR facilitated hydroxyapatite (HAP) formation, enhancing biofilm attachment settleability suspended sludge. This maintained sufficient biomass a stable microbial structure after flushing mitigate free nitrous acid inhibition. Robust anammox bacteria ammonia-oxidizing sludge ensured that PN/A achieved 87.3 % nitrogen removal efficiency at influent NH

Язык: Английский

Long-term operation of a two-reactor partial nitrification/anammox system with reverse sequence configuration and internal recirculation: Process performance and microbial community dynamics

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(3), С. 112636 - 112636

Опубликована: Март 29, 2024

Язык: Английский