Characterization of sulfide oxidation and optimization of sulfate production by a thermophilic Paenibacillus naphthalenovorans LYH-3 isolated from sewage sludge composting

2022 ◽  
Author(s):  
Li Chen ◽  
Weiguang Li ◽  
Yi Zhao ◽  
Shumei Zhang ◽  
Liqiang Meng ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Sulfide Oxidation ◽  
Sulfate Production ◽  
Sludge Composting

scholarly journals Characterization of the Gaseous and Odour Emissions from the Composting of Conventional Sewage Sludge

Atmosphere ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 211 ◽  
Author(s):  
Daniel González ◽  
Nagore Guerra ◽  
Joan Colón ◽  
David Gabriel ◽  
Sergio Ponsá ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Emission Factor ◽  
Main Process ◽  
Gaseous Emissions ◽  
Sulphur Compounds ◽  
Composting Process ◽  
Volatile Solids ◽  
Odour Emissions ◽  
Sludge Composting

Many different alternatives exist to manage and treat sewage sludge, all with the common drawback of causing environmental and odour impacts. The main objective of this work is to present a full inventory of the gaseous and odorous emissions generated during the bench-scale composting of conventional sewage sludge, aiming at assessing the process performance and providing global valuable information of the different gaseous emission patterns and emission factors found for greenhouse gases (GHG) and odorant pollutants during the conventional sewage sludge composting process. The main process parameters evaluated were the temperature of the material, specific airflow, average oxygen uptake rate (OUR), and final dynamic respiration index (DRI), resulting in a proper performance of the sewage sludge composting process and obtaining the expected final product. The obtained material was properly stabilized, presenting a final DRI of 1.2 ± 0.2 g O2·h−1·kg−1 Volatile Solids (VS). GHGs emission factor, in terms of kg CO2eq·Mg−1 dry matter of sewage sludge (DM–SS), was found to be 2.30 × 102. On the other hand, the sewage sludge composting odour emission factor (OEF) was 2.68 × 107ou·Mg−1 DM–SS. Finally, the most abundant volatile organic compounds (VOC) species found in the composting gaseous emissions were terpenes, sulphur compounds, ketones, and aromatic hydrocarbons, whereas the major odour contributors identified were dimethyldisulphide, eucalyptol, and α-pinene.

Hydrothermal alkaline conversion of sewage sludge: optimization of process parameters and characterization of humic acid

2021 ◽  
Author(s):  
Chen Qiu ◽  
Wenbing Xu ◽  
Yanjie Wang ◽  
Jiakuan Yang ◽  
Xintai Su ◽  
...  
Keyword(s):  
Humic Acid ◽  
Sewage Sludge ◽  
Process Parameters ◽  
Optimization Of Process Parameters

Garbage enzymes effectively regulated the succession of enzymatic activities and the bacterial community during sewage sludge composting

2021 ◽  
Vol 327 ◽  
pp. 124792
Author(s):  
Jishao Jiang ◽  
Yang Wang ◽  
Dou Yu ◽  
Xing Yao ◽  
Jin Han ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Bacterial Community ◽  
Enzymatic Activities ◽  
Sludge Composting

Antibiotic Resistome and Its Association with Bacterial Communities during Sewage Sludge Composting

2015 ◽  
Vol 49 (12) ◽  
pp. 7356-7363 ◽  
Author(s):  
Jian-Qiang Su ◽  
Bei Wei ◽  
Wei-Ying Ou-Yang ◽  
Fu-Yi Huang ◽  
Yi Zhao ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Bacterial Communities ◽  
Sludge Composting

Effects of sucrose amendment on ammonia assimilation during sewage sludge composting

2016 ◽  
Vol 210 ◽  
pp. 160-166 ◽  
Author(s):  
Liqiang Meng ◽  
Weiguang Li ◽  
Shumei Zhang ◽  
Chuandong Wu ◽  
Ke Wang
Keyword(s):  
Sewage Sludge ◽  
Ammonia Assimilation ◽  
Sludge Composting

Insights into influences of sucrose amendment on nitrification and denitrification in sewage sludge composting

Chemosphere ◽  
2021 ◽  
pp. 130245
Author(s):  
Liqiang Meng ◽  
Weiguang Li ◽  
Yi Zhao ◽  
Li Chen ◽  
Shumei Zhang ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Nitrification And Denitrification ◽  
Sludge Composting
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