• Title/Summary/Keyword: brewery wastewater sludge

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A Study on the Composting of the Brewery and Nightsoil Mixed Sludge I - Influence of mixing ratio and agitation period in composting (맥주 및 분뇨슬러지 혼합물의 퇴비화에 관한 연구 I -혼합 및 교반주기가 퇴비화에 미치는 영향-)

  • 박종혁;김동수
    • Resources Recycling
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    • v.8 no.4
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    • pp.39-44
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    • 1999
  • Nightsoil and brewery sludges usually contain a high concentration of organic matters. A composting study using reactors was carried out for the recycle of brewery wastewater sludge and nightsoil treatment sludge, which have been landfilled. A good composting process was obtained with a sludge mixing ratio of 1:1 and injual pH had no effect on temperature increase related to microbial activity. The injtial C/N ratio at approximarely 15 decreased to 13 without the increase in pH.. It was found that agitation of one time a week provided the most effective composting process.

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An Investigation of the Causes of Filamentous Bulking at the Southerly Wastewater Treatment Plant in Columbus, Ohio (활성슬러지 하수처리장에서의 Filamentous Bulking의 원인규명을 위한 조사연구)

  • Ko, Kwang Baik;Sykes, Robert M.
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.7 no.3
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    • pp.77-87
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    • 1987
  • A series of bench scale activated sludge units were operated to find the causes of filamentous bulking(Schizothrix calcicola) at the Southerly Wastewater Treatment Plant. The results shows that the algal bulking problem is caused by the combination of fermented brewery waste and a low/high DO pattern in the aeration basin. The volatile fatty acids in the influent are not themselves the only cause of bulking but indicators of an unidentified substance that either suppresses zoogloeal growth or stimulates algal growth during low DO conditions, because the volatile fatty acids do not stimulate algal growth unless they are added to a sewage that already contains, some fermented brewery waste.

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Anammox Bacteria Enrichment in Upflow Anaerobic Sludge Blanket (UASB) Reactor

  • Thuan Tran-Hung;Jahng Deok-Jin;Jung Jin-Young;Kim Dong-Jin;Kim Won-Kyoung;Park Young-Joo;Kim Ji-Eun;Ahn Dae-Hee
    • Biotechnology and Bioprocess Engineering:BBE
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    • v.9 no.5
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    • pp.345-351
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    • 2004
  • We investigated the anaerobic ammonium oxidation (anammox) reaction in a lab-stale upflow anaerobic sludge blanket (UASB) reactor. Our aim was to detect and enrich the organisms responsible for the anammox reaction using a synthetic medium that contained low concentrations of substrates (ammonium and nitrite). The reactor was inoculated with granular sludge collected from a full-scale anaerobic digestor used for treating brewery wastewater The experiment was performed during 260 days under conditions of constant ammonium concentration ($50\;mg\;NH_4^+-N/L$) and different nitrite concentrations ($50{\~}150\;mg\;NO_2-N/L$). After 200 days, anammox activity was observed in the system. The microorganisms involved in this anammox reaction were identified as Candidatus B. Anammoxidans and K. Stuttgartiensis using fluorescence in situ hybridization (FISH ) method.

Anaerobic Ammonium Oxidation(ANAMMOX) in a Granular Sludge Reactor and its Bio-molecular Characterization (입상 슬러지 반응조 내의 혐기성 암모늄 산화(ANAMMOX) 및 분자생태학적 특성 평가)

  • Han, Ji-Sun;Park, Hyun-A;Sung, Eun-Hae;Kim, Chang-Gyun;Yoon, Cho-Hee;Bae, Young-Shin
    • Journal of Korean Society of Environmental Engineers
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    • v.28 no.11
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    • pp.1213-1221
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    • 2006
  • In this study, granular sludge used in an anaerobic process treating brewery waste was inoculated in a laboratory scale of reactor to induce anaerobic ammonium oxidation(ANAMMOX). The reactor was operated with synthetic wastewater, which prepared at 1:1 ratio of $NH_4^+-N$ over $NO_2^--N$. Changes in nitrogen concentration, COD, alkalinity and gas production were analyzed. There are 3 phases of spanning in experimental period according to influent nitrogen concentration. In the Phase 1, each of the concentration of $NH_4^+-N$ and $NO_2^--N$ were increased from 1.91 $gN/m^3{\cdot}d$ to 14.29 $gN/m^3{\cdot}d$. Ammonium nitrogen loading(same as nitrite nitrogen) was 23.81 $gN/m^3{\cdot}d$ in the Phase 2 and 19.05 $gN/m^3{\cdot}d$ in the Phase 3, respectively $NO_2^--N$ has been removed up to 99% during whole period while the removal efficiency of $NH_4^+-N$ was significantly varied. In Phase 2, $NH_4^+-N$ was removed up to 75%. Microorganisms varied temporally through three phases were characterized by 16s rDNA analysis methods. ANAMMOX bacteria were dominantly found in phase 2 when the removal rate of $NO_2^--N$and $NH_4^+-N$ was the highest up to 99% and 75%, respectively. Due to erroneous exposed to air, the removal efficiency of $NH_4^+-N$ was unexpectedly lowered, but ANAMMOX bacteria still existed.