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Intertwining of the C-N-S cycle in passive and aerated constructed wetlands.
Kulshreshtha, Niha Mohan; Chauhan, Karishma; Singh, Abhyudaya; Soti, Abhishek; Kumari, Meena; Gupta, Akhilendra Bhushan.
Afiliación
  • Kulshreshtha NM; Department of Civil Engineering, Malaviya National Institute of Technology, JLN Marg, Jaipur, 302017, India.
  • Chauhan K; Dr. B. Lal Institute of Biotechnology, 6E-Malaviya Industrial Area, Jaipur, 302017, India.
  • Singh A; Department of Civil Engineering, Manipal University, Dehmi Kalan, Off Jaipur-Ajmer Expressway, Jaipur, 303007, India.
  • Soti A; Department of Civil Engineering, Malaviya National Institute of Technology, JLN Marg, Jaipur, 302017, India.
  • Kumari M; Department of Civil Engineering, Malaviya National Institute of Technology, JLN Marg, Jaipur, 302017, India.
  • Gupta AB; Bluedrop Enviro Private Limited, 101, Vasantha Golden Residency Plot No-521 and 536, Phillu Street, Raja Rajeswari Nagar, Kondapur, Telangana, 500084, India.
World J Microbiol Biotechnol ; 40(10): 301, 2024 Aug 13.
Article en En | MEDLINE | ID: mdl-39136809
ABSTRACT
The microbial processes occurring in constructed wetlands (CWs) are difficult to understand owing to the complex interactions occurring between a variety of substrates, microorganisms, and plants under the given physicochemical conditions. This frequently leads to very large unexplained nitrogen losses in these systems. In continuation of our findings on Anammox contributions, our research on full-scale field CWs has suggested the significant involvement of the sulfur cycle in the conventional C-N cycle occurring in wetlands, which might closely explain the nitrogen losses in these systems. This paper explored the possibility of the sulfur-driven autotrophic denitrification (SDAD) pathway in different types of CWs, shallow and deep and passive and aerated systems, by analyzing the metagenomic bacterial communities present within these CWs. The results indicate a higher abundance of SDAD bacteria (Paracoccus and Arcobacter) in deep passive systems compared to shallow systems and presence of a large number of SDAD genera (Paracoccus, Thiobacillus, Beggiatoa, Sulfurimonas, Arcobacter, and Sulfuricurvum) in aerated CWs. The bacteria belonging to the functional category of dark oxidation of sulfur compounds were found to be enriched in deep and aerated CWs hinting at the possible role of the SDAD pathway in total nitrogen removal in these systems. As a case study, the percentage nitrogen removal through SDAD pathway was calculated to be 15-20% in aerated wetlands. The presence of autotrophic pathways for nitrogen removal can prove highly beneficial in terms of reducing sludge generation and hence reducing clogging, making aerated CWs a sustainable wastewater treatment solution.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Azufre / Bacterias / Humedales / Desnitrificación / Nitrógeno Idioma: En Revista: World J Microbiol Biotechnol Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Azufre / Bacterias / Humedales / Desnitrificación / Nitrógeno Idioma: En Revista: World J Microbiol Biotechnol Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Alemania