Treatment performance of multistage active biological process (MSABP) reactor for saline sauerkraut wastewater: acclimatization, optimization and improvement

Youzhao Wang; Tong Zhu; Yong Jie WongKuo ZhangMingdong Chang

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Treatment performance of multistage active biological process (MSABP) reactor for saline sauerkraut wastewater: acclimatization, optimization and improvement

机译：Treatment performance of multistage active biological process (MSABP) reactor for saline sauerkraut wastewater: acclimatization, optimization and improvement

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Abstract The wastewater with a high concentration of organics and salt is a major contaminant in the production of sauerkraut. In this study, a multistage active biological process (MSABP) system was constructed to treat sauerkraut wastewater. The key process parameters of the MSABP system were analyzed and optimized by response surface methodology. The optimization results indicated that the most optimal removal efficiencies and removal loading rates of chemical oxygen demand (COD) and NH4+-N were 87.9%, 95.5%, 2.11?kg·m?3·d?1 and 0.12?kg·m?3·d?1, respectively, with hydraulic retention time (HRT) of 2.5 d and pH of 7.3. Meanwhile, this system could also be improved for the further treatment of COD and total nitrogen by effluent recycle and ozone oxidation. The COD and total nitrogen removal efficiencies of the modified MSABP system were 99.9% and 60.2%, respectively. In addition, the modified system could also reduce the potential harm from high concentrations of NO2?-N.

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《Bioprocess and biosystems engineering》 |2023年第7期|981-993|共13页
作者
Youzhao Wang; Tong Zhu; Yong Jie WongKuo ZhangMingdong Chang;
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作者单位

Northeastern University;

Northeastern University||DongYuan Environment S&T;

Kyoto University||Kyoto University of Advance SciencePeking UniversityNortheastern University||Kyoto University;

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正文语种英语
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Sauerkraut wastewater; Multistage; Biodegradation; Response surface methodology; Ozone oxidation process;

Treatment performance of multistage active biological process (MSABP) reactor for saline sauerkraut wastewater: acclimatization, optimization and improvement

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