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Yamada, M., Harada, H., Yamauchi, M., Yamaguchi, T., Ohashi, A.. (1392). Reduction of Alkali Supplement in a Pilot-Scale Thermophilic Multi-Staged UASB Reactor Treating Alcohol Distillery Wastewater. , 7(4), 823-830. doi: 10.22059/ijer.2013.663
M. Yamada; H. Harada; M. Yamauchi; T. Yamaguchi; A. Ohashi. "Reduction of Alkali Supplement in a Pilot-Scale Thermophilic Multi-Staged UASB Reactor Treating Alcohol Distillery Wastewater". , 7, 4, 1392, 823-830. doi: 10.22059/ijer.2013.663
Yamada, M., Harada, H., Yamauchi, M., Yamaguchi, T., Ohashi, A.. (1392). 'Reduction of Alkali Supplement in a Pilot-Scale Thermophilic Multi-Staged UASB Reactor Treating Alcohol Distillery Wastewater', , 7(4), pp. 823-830. doi: 10.22059/ijer.2013.663
Yamada, M., Harada, H., Yamauchi, M., Yamaguchi, T., Ohashi, A.. Reduction of Alkali Supplement in a Pilot-Scale Thermophilic Multi-Staged UASB Reactor Treating Alcohol Distillery Wastewater. , 1392; 7(4): 823-830. doi: 10.22059/ijer.2013.663

Reduction of Alkali Supplement in a Pilot-Scale Thermophilic Multi-Staged UASB Reactor Treating Alcohol Distillery Wastewater

International Journal of Environmental Research
مقاله 1، دوره 7، شماره 4، دی 2013، صفحه 823-830    اصل مقاله (597.05 K)
نوع مقاله: Original Research Paper
شناسه دیجیتال (DOI): 10.22059/ijer.2013.663
نویسندگان
M. Yamada* 1؛ H. Harada2؛ M. Yamauchi1؛ T. Yamaguchi3؛ A. Ohashi4
1Department of Civil and Environmental Engineering, Kagoshima National College of Technology, 1460-1 Shinko, Hayato-cho, Kirishima, Kagoshima, 899-5193, Japan
2Department of Civil and Environmental Engineering, Tohoku University, 6-6-06 Aoba, Aramaki, Aoba ku, Sendai, Miyagi, 980-8579, Japan
3Department of Civil and Environmental Engineering, Nagaoka University of Technology, 1603-1 Kamitomiokamachi, Nagaoka Niigata, 940-2188, Japan
4Department of Social and Environmental Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima, 739- 8527, Japan
چکیده
One of the main disadvantages of anaerobic wastewater treatment at a low pH is the significant
operational cost due to the addition of necessary alkali. To reduce alkali supplement and thus the cost, this
study proposes a sequential multi-feed (SqMF) mode (distributed feeding) and effluent recycle (ER) mode.
Experiments were conducted with a pilot-scale (2.5 m3) thermophilic (55°C) multi-staged up-flow anaerobic
sludge blanket reactor. Alcohol distillery wastewater (shochu), a major source of industrial wastewater in
Japan, was used for the study. The SqMF mode of operation (influent pH: 5.0; organic loading rate: 45
kgCOD/m3/day; HRT: 12 hours; influent COD concentration: 20,900 mgCOD/L) successfully reduced the
alkali supplement (24% NaOH solution) requirement by 67.2% compared with the single-feed mode. For the
ER mode operation (organic loading rate: 35 kgCOD/m3/day; HRT: 12 hours; influent COD concentration:
17,400 mgCOD/L), operation was possible without any alkali supplement since the system uses the alkalinity generated during microbial metabolism.
کلیدواژه‌ها
alkalinity؛ Sequential multi-feed؛ Effluent recycle؛ Alcohol؛ distillery؛ wastewater
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