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TECHNOLOGICAL AND MANAGEMENT ASPECTS OF THE ANAEROBIC CO-DIGESTION OF SEWAGE SLUDGE WITH VEGETABLE AND ORGANIC WASTES
Author(s) -
Patricio Neumann,
Claudia Oviedo,
Alvaro Suazo Schwencke,
Francisco Ramis Lanyon,
Pamela Delgado Neira
Publication year - 2019
Publication title -
dyna
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.177
H-Index - 11
eISSN - 1989-1490
pISSN - 0012-7361
DOI - 10.6036/9079
Subject(s) - sewage sludge , anaerobic digestion , biosolids , waste management , environmental science , incineration , sewage treatment , biogas , sewage sludge treatment , thermal hydrolysis , waste treatment , wastewater , sewage , sludge bulking , environmental engineering , engineering , chemistry , methane , organic chemistry
Sewage treatment plants (STPs) sanitize wastewater so that it can be discharged into natural watercourses. As a resultof this treatment, biosolids or sludge are generated. Sludge disposal is a potential source of soil and water pollution, and its management can account for up to 50% of the operationalcosts of wastewater treatment facilities. On the other hand, the management of other sources of organic wastes such as fruit and vegetable waste (FVW) represent a challenge and an opportunity, due to their high volumes and potential energyvalorization though biological and thermal processes.In this article, we review the main reports regarding anaerobic co-digestion of sewage sludge with FVW and similar residues. Only pilot and full-scale experiences were included in our search, in an attempt to provide a realistic assessment of the degree of technologyadoption in industrial plants. Additionally, we review the currentChilean, European and American regulations regarding final disposal or elimination of sludge, with emphasis on those that involve waste energy valorization, such as incineration in cement plants.

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