Gravimetric Evolution During Sewage Sludge Biostabilization
Published on by Water Network Research, Official research team of The Water Network in Case Studies
Gravimetric Evolution During Sewage Sludge Biostabilization
Paola Posligua, Michelle Peñaherrera, Elvito Villegas, Carlos Banchon
ABSTRACT:
Sewage sludge is a by-product in the wastewater treatment and is an inherent hazardous issue because of the pathogenic contamination of natural resources. Therefore, in this study, domestic sludge was treated with premontane forest soil, macronutrients, and also pasteurization to reduce the content of volatile solids and pathogens.
The best biostabilization treatment using premontane forest soil and pasteurization obtained a volatile solids reduction of 87% according to the environmental regulations, in which a biosolid is stable in a range of 38% of volatile solids reduction. In less than 30 days in a mesophilic range, the coliform count was reduced up to 71% when using forest soil and pasteurization.
Thus, a biosolid-class B was obtained using gravimetric means as a platform to promote fast quality control.
KEYWORDS : sewage, pathogens, biosolids, mesophilic, anaerobic
J. Ecol. Eng. 2018; 19(5):76–85
Taxonomy
- Pathogen Removal
- Raw Sewage
- Reclaimed Wastewater
- Sewage Treatment
- Decentralized Wastewater
- Wastewater Treatment
- Wastewater Collection
- Sewage