This paper presents a study on the degradation of smuggled cigarette tobacco combined with domestic organic waste and sawdust or wood chips, using facultative reactor. Four reactors with different amounts of residue were assembled. For the study of the quality of the compost obtained, physicochemical, phytotoxicity and microbiological analyses were carried out. The mixture with wood chips presented the best temperature conditions and pH variation optimizing the degradation. The final germination index (GI) values of all treatments were above the recommended GI value (50%) and the final C/N ratio between 8 and 13 indicated a mature compost. The concentration of metals under study was below the limit allowed for the commercialization. The composting carried out in all facultative reactors provided ideal conditions for the total sterilization of the final compost. Therefore, the treatment of smuggled cigarettes through facultative reactors was efficient to produce stable and mature compost.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.wasman.2017.10.023 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Understanding the limitations of substrate degradation in bioelectrochemical systems.
Front Microbiol
January 2025
School of Engineering, Newcastle University, Newcastle upon Tyne, United Kingdom.
Microbial Fuel Cells (MFCs) are innovative environmental engineering systems that harness the metabolic activities of microbial communities to convert chemical energy in waste into electrical energy. However, MFC performance optimization remains challenging due to limited understanding of microbial metabolic mechanisms, particularly with complex substrates under realistic environmental conditions. This study investigated the effects of substrate complexity (acetate vs.
View Article and Find Full Text PDFUnveiling the hidden diversity and functional role of Chloroflexota in full-scale wastewater treatment plants through genome-centric analyses.
ISME Commun
January 2024
Microbial Ecology Laboratory, Department of Microbial Biochemistry and Genomic, Biological Research Institute "Clemente Estable", Avenida Italia 3318, 11600 Montevideo, CP, Uruguay.
The phylum Chloroflexota has been found to exhibit high abundance in the microbial communities from wastewater treatment plants (WWTPs) in both aerobic and anaerobic systems. However, its metabolic role has not been fully explored due to the lack of cultured isolates. To address this gap, we use publicly available metagenome datasets from both activated sludge (AS) and methanogenic (MET) full-scale wastewater treatment reactors to assembled genomes.
View Article and Find Full Text PDFDual-bioaugmentation strategy to simultaneously mitigate biofouling and promote methanogenesis in AnMBR.
Water Res
February 2025
School of Civil Engineering and Transportation, Guangzhou University, Guangzhou, 510006, China; Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Guangzhou University, Guangzhou, 510006, China. Electronic address:
Anaerobic membrane bioreactor (AnMBR) is a promising technology for resource and energy recovery from wastewater owing to its high-quality effluent and methane production. However, membrane fouling and susceptible methanogenesis have ever compromised the AnMBR. This work attempted to mitigate membrane fouling and promote methane production simultaneously in AnMBR through bioaugmentation with a consortium consisting of both quorum quenching (QQ) bacteria and methanogens.
View Article and Find Full Text PDFUnraveling mechanisms of selenium recovery by facultative anaerobic bacterium Azospira sp. A9D-23B in distinct reactor configurations.
Environ Sci Pollut Res Int
October 2024
Department of Civil and Environmental Engineering, FAMU-FSU College of Engineering, Florida State University, 2525 Pottsdamer Street, Tallahassee, FL, 32310, USA.
Article Synopsis
- This study isolated a selenate-reducing bacterium, Azospira sp. A9D-23B, to explore its ability to convert toxic selenium oxyanions into extracellular selenium nanoparticles (SeNPs).
- The bioelectrochemical (BEC) reactor setup produced significantly more SeNPs (99%) compared to a conventional bioreactor (65%), attributed to differences in selenate reductase activity.
- The findings highlight the potential of Azospira sp. A9D-23B for effective selenium detoxification, which could inform future sustainable environmental cleanup methods.
Evaluation of different operational conditions in a microbial electrolysis cell inoculated with a pure culture of Shewanella oneidensis for hydrogen production.
Environ Sci Pollut Res Int
August 2024
Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora (Centro de Investigación E Innovación en Biotecnologíaa, Agropecuaria y Ambiental), 5 de Febrero 818 Sur , C.P 85000, Ciudad Obregón, Sonora, México.
Hydrogen is a promising alternative to meet the world's energy demand in the future because of its energetic characteristics. Microbial electrolysis cell (MEC) produces hydrogen from organic matter using exoelectrogenic bacteria. Shewanella oneidensis stands out for having the capacity to produce hydrogen using different electron transfer mechanisms.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!