Microwave disinfection strengthened by a biochar-based microwave absorbing material for sewage resource utilization

Proper disinfection treatment is the basic guarantee for safe utilisation of sewage. However, the commonly used disinfection methods are not suitable for nutrients containing reclaimed water. In this work, the microwave disinfection method assisted by a microwave-absorbing material in recycled water...

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Veröffentlicht in:Environmental technology. - 1993. - 45(2024), 21 vom: 28. Sept., Seite 4388-4396
1. Verfasser: Wang, Dongmei (VerfasserIn)
Weitere Verfasser: Chen, Qianxi, Hui, Binyu, Yuan, Kai, Zou, Xianbing, Ma, Nan, Gong, Zhengjun, Fan, Meikun
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Microwave disinfection magnetic biochar microwave absorbing material sewage resource utilisation Sewage Charcoal 16291-96-6 biochar
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520 |a Proper disinfection treatment is the basic guarantee for safe utilisation of sewage. However, the commonly used disinfection methods are not suitable for nutrients containing reclaimed water. In this work, the microwave disinfection method assisted by a microwave-absorbing material in recycled water samples was investigated. Magnetic corn stalk biochar (MCSB), the microwave absorbing material, was prepared by high temperature carbonisation of corn stalk particles impregnated with ferrous sulfate. Escherichia coli and fecal coliforms were selected as target microorganisms to investigate the disinfection efficiency of MCSB assisted microwave radiation (MW/MCSB). The addition of microwave absorbing materials significantly improves the disinfection effect of water samples. Compared with the microwave radiation (MW) without MCSB, the bactericidal rate by using 107 CFU/L E. coli suspension increased from 63.5% to 100% at 480 W for 30 s after adding 4 g/L MCSB. Besides, the effects of MCSB dosage, microwave power, microwave radiation time, and initial bacterial concentration on disinfection efficiency were explored. Moreover, the bactericidal efficiency for actual sewage samples was also demonstrated by treating the effluent from septic tank sewage. The residual fecal coliforms in treated water samples met China's farmland irrigation water standard (GB 5084-2021). The result indicates that the proposed method of microwave disinfection strengthened by MCSB has a promising application prospect for reclaimed water disinfection 
650 4 |a Journal Article 
650 4 |a Microwave disinfection 
650 4 |a magnetic biochar 
650 4 |a microwave absorbing material 
650 4 |a sewage resource utilisation 
650 7 |a Sewage  |2 NLM 
650 7 |a Charcoal  |2 NLM 
650 7 |a 16291-96-6  |2 NLM 
650 7 |a biochar  |2 NLM 
700 1 |a Chen, Qianxi  |e verfasserin  |4 aut 
700 1 |a Hui, Binyu  |e verfasserin  |4 aut 
700 1 |a Yuan, Kai  |e verfasserin  |4 aut 
700 1 |a Zou, Xianbing  |e verfasserin  |4 aut 
700 1 |a Ma, Nan  |e verfasserin  |4 aut 
700 1 |a Gong, Zhengjun  |e verfasserin  |4 aut 
700 1 |a Fan, Meikun  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Environmental technology  |d 1993  |g 45(2024), 21 vom: 28. Sept., Seite 4388-4396  |w (DE-627)NLM098202545  |x 1479-487X  |7 nnas 
773 1 8 |g volume:45  |g year:2024  |g number:21  |g day:28  |g month:09  |g pages:4388-4396 
856 4 0 |u http://dx.doi.org/10.1080/09593330.2023.2251656  |3 Volltext 
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