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J Environ Sci (China) ; 144: 76-86, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-38802240

RESUMO

In this study, high temperature thermotolerant nitrifying bacteria (TNB) and high temperature thermotolerant sulfide oxidizing bacteria (TSOB) were obtained from compost samples and inoculated into sewage sludge (SS) compost. The effects of inoculation on physical and chemical parameters, ammonia and hydrogen sulfide release, nitrogen form and sulfur compound content change and physical-chemical properties during nitrogen and sulfur conversion were studied. The results showed that inoculation of TNB and TSOB increased the temperature, pH, OM degradation, C/N ratio and germination index (GI) of compost. Compared with the control treatment (CK), the addition of inoculants reduced the release of NH3 and H2S, and transformed them into nitrogen and sulfur compounds, the hydrolysis of polymeric ferrous sulfate was promoted, resulting in relatively high content of sulfite and sulfate. At the same time, the physical and chemical properties of SS have a strong correlation with nitrogen and sulfur compounds.


Assuntos
Compostagem , Nitrificação , Nitrogênio , Esgotos , Enxofre , Esgotos/microbiologia , Nitrogênio/metabolismo , Enxofre/metabolismo , Compostagem/métodos , Oxirredução , Eliminação de Resíduos Líquidos/métodos , Bactérias/metabolismo
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