Beneficial influences of pelelith and dicyandiamide on gaseous emissions and the fungal community during sewage sludge composting

2019 ◽  
Vol 26 (9) ◽  
pp. 8928-8938 ◽  
Author(s):  
Jishao Jiang ◽  
Youwei Pan ◽  
Xianli Yang ◽  
Juan Liu ◽  
Haohao Miao ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Fungal Community ◽  
Gaseous Emissions ◽  
Sludge Composting

Combined addition of biochar and garbage enzyme improving the humification and succession of fungal community during sewage sludge composting

2021 ◽  
pp. 126344
Author(s):  
Jishao Jiang ◽  
Yang Wang ◽  
Dou Yu ◽  
Rui Hou ◽  
Xiaonan Ma ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Fungal Community ◽  
Sludge Composting

Influence of matured compost inoculation on sewage sludge composting: Enzyme activity, bacterial and fungal community succession

2019 ◽  
Vol 294 ◽  
pp. 122165 ◽  
Author(s):  
Chuang Ma ◽  
Bin Hu ◽  
Ming-Bao Wei ◽  
Ji-Hong Zhao ◽  
Hong-Zhong Zhang
Keyword(s):  
Enzyme Activity ◽  
Sewage Sludge ◽  
Fungal Community ◽  
Community Succession ◽  
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.

Effects of aeration rate on maturity and gaseous emissions during sewage sludge composting

2016 ◽  
Vol 56 ◽  
pp. 403-410 ◽  
Author(s):  
Jing Yuan ◽  
David Chadwick ◽  
Difang Zhang ◽  
Guoxue Li ◽  
Shili Chen ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Aeration Rate ◽  
Gaseous Emissions ◽  
Sludge Composting

The effect of the composting time on the gaseous emissions and the compost stability in a full-scale sewage sludge composting plant

2019 ◽  
Vol 654 ◽  
pp. 311-323 ◽  
Author(s):  
Daniel González ◽  
Joan Colón ◽  
David Gabriel ◽  
Antoni Sánchez
Keyword(s):  
Sewage Sludge ◽  
Full Scale ◽  
Gaseous Emissions ◽  
Compost Stability ◽  
Sludge Composting

Sewage sludge as a precursor of adsorbents/catalysts for environmental applications

2007 ◽  
Vol 2 (1) ◽  
Author(s):  
A. Ros ◽  
C. Canals-Batlle ◽  
M.A. Lillo-Ródenas ◽  
E. Fuente ◽  
M. A. Montes-Morán ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Room Temperature ◽  
Waste Water Treatment ◽  
Textural Properties ◽  
Active Species ◽  
Elemental Sulphur ◽  
Gaseous Emissions ◽  
Removal Experiments ◽  
Catalytically Active

This paper focuses on the valorisation of solid residues obtained from the thermal treatment of sewage sludge. In particular, sewage sludge samples were collected from two waste water treatment plants (WWTPs) with different sludge line basic operations. After drying, sludges were heated up to 700 °C in appropriate ovens under diluted air (gasification) and inert (pyrolysis) atmospheres. The solids obtained, as well as the dried (raw) sludges, were characterised to determine their textural properties and chemical composition, including the speciation of their inorganic fraction. All the materials under study were employed as adsorbents/catalysts in H2S removal experiments at room temperature. It was found that, depending on the particular sludge characteristics, outstanding results can be achieved both in terms of retention capacities and selectivity. Some of the solids outperform commercially available sorbents specially designed for gaseous emissions control. In these adsorbents/catalysts, H2S is selectively oxidised to elemental sulphur most likely due to the presence of inorganic, catalytically active species. The role of the carbon-enriched part on these solids is also remarked.

scholarly journals Earthworms drastically change fungal and bacterial communities during vermicomposting of sewage sludge

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jorge Domínguez ◽  
Manuel Aira ◽  
Keith A. Crandall ◽  
Marcos Pérez-Losada
Keyword(s):  
Sewage Sludge ◽  
Community Composition ◽  
Fungal Community ◽  
High Throughput Sequencing ◽  
Wastewater Treatment Plants ◽  
Agricultural Practices ◽  
Fungal Community Composition ◽  
Earthworm Casts ◽  
Composition And Structure ◽  
Sustainable Agricultural Practices

AbstractWastewater treatment plants produce hundreds of million tons of sewage sludge every year all over the world. Vermicomposting is well established worldwide and has been successful at processing sewage sludge, which can contribute to alleviate the severe environmental problems caused by its disposal. Here, we utilized 16S and ITS rRNA high-throughput sequencing to characterize bacterial and fungal community composition and structure during the gut- and cast-associated processes (GAP and CAP, respectively) of vermicomposting of sewage sludge. Bacterial and fungal communities of earthworm casts were mainly composed of microbial taxa not found in the sewage sludge; thus most of the bacterial (96%) and fungal (91%) taxa in the sewage sludge were eliminated during vermicomposting, mainly through the GAP. Upon completion of GAP and during CAP, modified microbial communities undergo a succession process leading to more diverse microbiotas than those found in sewage sludge. Consequently, bacterial and fungal community composition changed significantly during vermicomposting. Vermicomposting of sewage resulted in a stable and rich microbial community with potential biostimulant properties that may aid plant growth. Our results support the use of vermicompost derived from sewage sludge for sustainable agricultural practices, if heavy metals or other pollutants are under legislation limits or adequately treated.

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
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