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1.
Future Microbiol ; 18: 465-469, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-37284747

RESUMO

Lung abscesses are one of the most common lower respiratory tract infections worldwide and can seriously endanger life. However, pathogens associated with lung abscesses still cannot be detected quickly and accurately with the current microbial detection technology. Here, the case of a 53-year-old male with a lung abscess caused by oral bacteria is reported. After metagenomic next-generation sequencing was applied to identify the pathogenic microorganism, the patient recovered with precision medicine. Metagenomic next-generation sequencing is an important tool for the clinical diagnosis of infectious diseases caused by microorganisms and in guiding precision medicine.


Assuntos
Doenças Transmissíveis , Abscesso Pulmonar , Masculino , Humanos , Pessoa de Meia-Idade , Abscesso Pulmonar/diagnóstico , Bactérias/genética , Metagenoma , Sequenciamento de Nucleotídeos em Larga Escala , Metagenômica
2.
Waste Manag ; 160: 146-155, 2023 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-36827883

RESUMO

Swelling caused by gas generated from municipal solid waste incineration fly ash (MSWIFA) when it is mixed with alkali limits its uses. Besides, the leaching of anion salts and heavy metals contained in MSWIFA poses a high risk to environment. This study presents the feasibility of a one-step alkaline washing, one-step thermal quenching and two-step combination of alkaline washing and thermal quenching pretreatment methods in altering the key properties of MSWIFA for promoting its reusability. It was found that apart from H2(gas), NH3(gas) was also generated during the alkaline washing of the MSWIFA. Besides, pretreatments led to the reduction in particle size, the increase in pore volume and specific surface area of the MSWIFA, as well as the removal of chloride and sulfate anions. All the pretreatment methods were effective in reducing leaching of heavy metals to below levels of nonhazardous waste except Cd and Pb with alkaline washing. Furthermore, both the chemical Frattini test and the mechanical activity index test showed improvement in pozzolanic activities of the MSWIFA after the pretreatments. Overall, the combined pretreatment method was most effective in eliminating gas emission, and reducing leaching of metal ions and anions from the ash, while enhancing the pozzolanic activity of the ash.


Assuntos
Metais Pesados , Eliminação de Resíduos , Cinza de Carvão/química , Resíduos Sólidos/análise , Incineração , Material Particulado , Carbono/química , Metais Pesados/análise
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