Biomethanisation of sewage sludge: Sonication pretreatment and monitoring of microbial communities DOI Creative Commons
M.A. Martı́n, Antonio Serrano, B. Rincón

и другие.

Environmental Technology & Innovation, Год журнала: 2024, Номер 36, С. 103750 - 103750

Опубликована: Июль 11, 2024

The improvement of mesophilic biomethanisation recalcitrant sewage sludge derived from urban wastewater treatment through the application a sonication pretreatment was evaluated in parallel two pilot-scale anaerobic digesters (two biological replicates: reactors RA and RB). valorisation process monitored novel holistic approach that related yield, its main batch operational parameters, with abundance archaeal bacterial communities inocula. Sonication allowed achieving methane yield coefficient 240 ± 20 mLSTPCH4/g VS (volatile solids) at load range 0.8–4.0 g VS/L both reactors. more stable reactor B, wider loads being (up to 5.29 VS/L). Monitoring presence Archaea mixing liquor revealed variation their throughout which directly availability organic matter pH. Advanced metagenomic analysis showed phylogenetic functional diversity complex microbiome involved. While Bacteria were widely distributed 35 phyla, fitted only two. Euryarchaeota majoritarian phylum (99.5 %) abundant families are linked methanogenic metabolism. Functional several relevant metabolic pathways followed similar trends "Methane metabolism" clearly diminished end concordance exhaust generation, while "ABC transporters" or "two-component systems", involved survival changing environments, opposite pattern. This integrated could help increase sludge.

Язык: Английский

Effect of electrooxidation pretreatment on treatment efficiency, membrane fouling and microbial community of a membrane bioreactor treating sludge dewatering wastewater DOI

Arindam Sinahroy,

Seung Hui Kim,

Chong Min Chung

и другие.

Process Safety and Environmental Protection, Год журнала: 2024, Номер 191, С. 466 - 477

Опубликована: Авг. 28, 2024

Язык: Английский

Процитировано

3
Physiological and ecological response of a simultaneous nitrification-denitrification process treating organic solid waste leachates in a sequential batch reactor DOI

Miguel Martínez‐Jardines,

Flor de María Cuervo‐López, Sergio Martínez-Hernández

и другие.

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Май 5, 2025

Abstract The physiology and microbial community behavior of a simultaneous nitrification-denitrification process (SNDP) treating organic solid waste (OSW) leachate in sequencing batch reactor (SBR) was analyzed. SBR fed with synthetic medium (SNDP control, 102 ± 5 mg NH4+-N/L) then diluted leachates (62 7 NH4+-N/L 4845 162 mg/L chemical oxygen demand, COD). Physiology evaluated by ammonium nitrate consumption efficiencies (ENH4+-N, ENO3−-N) nitrogen production yields (YNO3−-N, YN2-N). Microbial determined high-throughput sequencing. SNDP control reached ENH4+-N 99% YNO3−-N 0.94 during nitrification ENO3−-N YN2-N 0.86 denitrification. 92% 0.83 79% 0.69 COD were obtained. Nitrifying species such as Nitrosomonas europaea, nitrosa, Nitrospira defluvii predominant, abundances 0.04%, 0.02%, 0.12%, respectively. Denitrifying Azoarcus sp, Pseudoxanthomonas mexicana, Pseudomonas stutzeri 0.07%, 5.41%, 8.48%, These associated the matter ammonium, well N₂. successfully developed simple achieving high removal from OSW leachates.

Язык: Английский

Процитировано

0
Biomethanisation of sewage sludge: Sonication pretreatment and monitoring of microbial communities DOI Creative Commons
M.A. Martı́n, Antonio Serrano, B. Rincón

и другие.

Environmental Technology & Innovation, Год журнала: 2024, Номер 36, С. 103750 - 103750

Опубликована: Июль 11, 2024

The improvement of mesophilic biomethanisation recalcitrant sewage sludge derived from urban wastewater treatment through the application a sonication pretreatment was evaluated in parallel two pilot-scale anaerobic digesters (two biological replicates: reactors RA and RB). valorisation process monitored novel holistic approach that related yield, its main batch operational parameters, with abundance archaeal bacterial communities inocula. Sonication allowed achieving methane yield coefficient 240 ± 20 mLSTPCH4/g VS (volatile solids) at load range 0.8–4.0 g VS/L both reactors. more stable reactor B, wider loads being (up to 5.29 VS/L). Monitoring presence Archaea mixing liquor revealed variation their throughout which directly availability organic matter pH. Advanced metagenomic analysis showed phylogenetic functional diversity complex microbiome involved. While Bacteria were widely distributed 35 phyla, fitted only two. Euryarchaeota majoritarian phylum (99.5 %) abundant families are linked methanogenic metabolism. Functional several relevant metabolic pathways followed similar trends "Methane metabolism" clearly diminished end concordance exhaust generation, while "ABC transporters" or "two-component systems", involved survival changing environments, opposite pattern. This integrated could help increase sludge.

Язык: Английский

Процитировано

1