Bioleaching Process of Sewage Sludge and Anaerobically Digested Sludge via Indigenous Sulfur-Oxidizing Bacteria to Improve Dewaterability and Reduce Heavy Metal Content DOI Creative Commons
Suyun Xu, Yuze Jiang,

Ruixiang Zou

и другие.

Fermentation, Год журнала: 2025, Номер 11(6), С. 321 - 321

Опубликована: Июнь 4, 2025

This study investigated the role of indigenous inoculum (primarily sulfur-oxidizing Acidithiobacillus thiooxidans and other acidophilic bacteria) in heavy metal removal from sewage sludge (SS) anaerobic digested (ADS). Four treatments were evaluated: + elemental sulfur (S/ADS E), alone B), S), a control with no additives. After 7 days bioleaching, SS ADS exhibited comparable rates on Ni (92–98%) Pb (88–92%), which significantly more mobilized than Cu (30–44%) Cr (63–73%). bioleaching treatment, residual metals both types predominantly sequestered oxidizable (F3) (F4) fractions, markedly reducing their environmental mobility pollution risk during land application. The dewaterability performance, assessed via capillary suction time (CST), reached optimal values S E within 24–48 h, after CST increased alongside rising extracellular polymeric substances dissolved organic carbon. While S/ADS B configuration marginally reduced Cu, Ni, efficiencies relative to E, it demonstrated superior characteristics under equivalent reaction durations. These results suggest that limiting (S0) supply moderate growth activity autotrophic A. can maintain pH 2.0–3.0, striking balance between effective favorable dewatering performance.

Язык: Английский

Harnessing bacterial consortia for effective bioremediation: targeted removal of heavy metals, hydrocarbons, and persistent pollutants DOI Creative Commons

Shaza Y.A. Qattan

Environmental Sciences Europe, Год журнала: 2025, Номер 37(1)

Опубликована: Июнь 4, 2025

Язык: Английский

Процитировано

0
Bioleaching Process of Sewage Sludge and Anaerobically Digested Sludge via Indigenous Sulfur-Oxidizing Bacteria to Improve Dewaterability and Reduce Heavy Metal Content DOI Creative Commons
Suyun Xu, Yuze Jiang,

Ruixiang Zou

и другие.

Fermentation, Год журнала: 2025, Номер 11(6), С. 321 - 321

Опубликована: Июнь 4, 2025

This study investigated the role of indigenous inoculum (primarily sulfur-oxidizing Acidithiobacillus thiooxidans and other acidophilic bacteria) in heavy metal removal from sewage sludge (SS) anaerobic digested (ADS). Four treatments were evaluated: + elemental sulfur (S/ADS E), alone B), S), a control with no additives. After 7 days bioleaching, SS ADS exhibited comparable rates on Ni (92–98%) Pb (88–92%), which significantly more mobilized than Cu (30–44%) Cr (63–73%). bioleaching treatment, residual metals both types predominantly sequestered oxidizable (F3) (F4) fractions, markedly reducing their environmental mobility pollution risk during land application. The dewaterability performance, assessed via capillary suction time (CST), reached optimal values S E within 24–48 h, after CST increased alongside rising extracellular polymeric substances dissolved organic carbon. While S/ADS B configuration marginally reduced Cu, Ni, efficiencies relative to E, it demonstrated superior characteristics under equivalent reaction durations. These results suggest that limiting (S0) supply moderate growth activity autotrophic A. can maintain pH 2.0–3.0, striking balance between effective favorable dewatering performance.

Язык: Английский

Процитировано

0