Liquid and gas chromatographic studies of the anaerobic degradation of baker’s yeast wastewater

Koplimaa, Mariane; Menert, Anne; Blonskaja, Viktoria; Kurissoo, T.; Zub, Sergei; Saareleht, Maarit; Vaarmets, Elena; Menert, Terje

doi:10.1016/j.proche.2009.12.019

Cited by 12 publications

(11 citation statements)

References 26 publications

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“…Analyses performed on the BYW revealed a wide range of concentrations of the chemical parameters, showing rather unstable rates of contaminants in this type of industrial wastewater ( Table 1). The findings were in line with other data reported in the literature that generally point towards a high content of organic matter (particularly COD), salts (mostly sulphate), and the acidic nature of BYW (Nahid et al 2001;Mutlu et al 2002;Menert et al 2004;Kobya & Delipinar 2008;Koplimaa et al 2010). The character of BYW creates difficulties in its treatment by conventional methods.…”

Section: Resultssupporting

confidence: 90%

“…; Kobya & Delipinar ; Koplimaa et al . ). The character of BYW creates difficulties in its treatment by conventional methods.…”

Section: Resultsmentioning

confidence: 97%

“…; Kobya & Delipinar ; Koplimaa et al . ), and one of the suggested methods is its agricultural utilisation (Paruch ). This is because BYW is a valuable water medium rich in the fertiliser trio (NPK) (Table ), sanitary/hygienically clean and not contaminated with toxic substances (Paruch ).…”

Section: Resultsmentioning

confidence: 99%

“…The character of BYW creates difficulties in its treatment by conventional methods. Therefore, different techniques have been implemented for the efficient purification of BYW (Nahid et al 2001;Mutlu et al 2002;Menert et al 2004;Kobya & Delipinar 2008;Koplimaa et al 2010), and one of the suggested methods is its agricultural utilisation (Paruch 2001). This is because BYW is a valuable water medium rich in the fertiliser trio (NPK) ( Table 1), sanitary/hygienically clean and not contaminated with toxic substances (Paruch 2001).…”

Section: Resultsmentioning

confidence: 99%

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The impact of wastewater irrigation on the chemical quality of groundwater

Paruch

2013

Water & Environment J

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The purpose of this investigation was to assess the groundwater impact of irrigation with industrial wastewater (baker's yeast wastewater, BYW) and to determine if agricultural reuse can be considered as an efficient wastewater treatment method. The impact of the irrigation and the status of the groundwater quality were determined using chemical parameters that are typical contaminants of BYW and characterise the content of total suspended solids (TSSs), organic matter (biochemical and chemical oxygen demands), nutrients (Norg, N-NH4, N-NO3, Ntotal, Ptotal and K), salts (Cl, SO4 and Na) and pH. The study revealed that BYW irrigation did not cause a significant increase in the content of these parameters in groundwater at a low water table region (WTR). However, at a high WTR, the irrigation had an extremely significant (P < 0.001) impact on the chemical status of groundwater that has been demonstrated by substantially high values of COD, N-NH4, Cl, SO4 and Na.

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Section: Resultssupporting

confidence: 90%

“…; Kobya & Delipinar ; Koplimaa et al . ). The character of BYW creates difficulties in its treatment by conventional methods.…”

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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The impact of wastewater irrigation on the chemical quality of groundwater

Paruch

2013

Water & Environment J

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“…The decrease in sulfide concentration was assumed to proceed at the expense of decay of trimethylglycine-NH 4 ? released from trimethylglycine reduced SO 4 2-with formation of elemental sulfur (Zub et al 2008;Koplimaa et al 2010). Lei et al (2009) refer to a possible involvement of sulfate-reducing bacteria (SRB) in the nitrite-generating stage of SRAO.…”

Section: Introductionmentioning

confidence: 99%

Sulfate-reducing anaerobic ammonium oxidation as a potential treatment method for high nitrogen-content wastewater

et al. 2011

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After sulfate-reducing ammonium oxidation (SRAO) was first assumed in 2001, several works have been published describing this process in laboratory-scale bioreactors or occurring in the nature. In this paper, the SRAO process was performed using reject water as a substrate for microorganisms and a source of NH(4) (+), with SO(4) (2-) being added as an electron acceptor. At a moderate temperature of 20°C in a moving bed biofilm reactor (MBBR) sulfate reduction along with ammonium oxidation were established. In an upflow anaerobic sludge blanket reactor (UASBR) the SRAO process took place at 36°C. Average volumetric TN removal rates of 0.03 kg-N/m³/day in the MBBR and 0.04 kg-N/m³/day in the UASBR were achieved, with long-term moderate average removal efficiencies, respectively. Uncultured bacteria clone P4 and uncultured planctomycete clone Amx-PAn30 were detected from the biofilm of the MBBR, from sludge of the UASBR uncultured Verrucomicrobiales bacterium clone De2102 and Uncultured bacterium clone ATB-KS-1929 were found also. The stoichiometrical ratio of NH(4) (+) removal was significantly higher than could be expected from the extent of SO(4) (2-) reduction. This phenomenon can primarily be attributed to complex interactions between nitrogen and sulfur compounds and organic matter present in the wastewater. The high NH(4) (+) removal ratio can be attributed to sulfur-utilizing denitrification/denitritation providing the evidence that SRAO is occurring independently and is not a result of sulfate reduction and anammox. HCO(3) (-) concentrations exceeding 1,000 mg/l were found to have an inhibiting effect on the SRAO process. Small amounts of hydrazine were naturally present in the reaction medium, indicating occurrence of the anammox process. Injections of anammox intermediates, hydrazine and hydroxylamine, had a positive effect on SRAO process performance, particularly in the case of the UASBR.

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Source Based Characterization and Pollution Profile of a Baker's Yeast Industry

Erşahin

Dereli

Özgün

et al. 2011

CLEAN Soil Air Water

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Research Article Source Based Characterization and Pollution Profile of a Baker's Yeast IndustryBaker's yeast industry has significant effects on environment due to significant water consumption and high strength wastewater production. Effluents from baker's yeast industry are characterized by high concentrations of biological oxygen demand (BOD 5 ), chemical oxygen demand (COD), total Kjeldahl nitrogen (TKN), total dissolved solids (TDS), sulfate, and dark brown color. The aim of this study is to provide a detailed quantitative and qualitative identification and characterization of the wastewater sources from different processes of a baker's yeast industry. It is identified that the most polluted wastewater components of the facility are coming from rotary drum filter and evaporation process. However, the highest pollution loads is identified as tank and equipment cleaning effluent due to very high flow rate from this source. The efforts should be on the way to minimize the water usage for the tank and equipment cleaning process, and to recycle less polluted waste streams back to the process.

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Liquid and gas chromatographic studies of the anaerobic degradation of baker’s yeast wastewater

Cited by 12 publications

References 26 publications

The impact of wastewater irrigation on the chemical quality of groundwater

The impact of wastewater irrigation on the chemical quality of groundwater

Sulfate-reducing anaerobic ammonium oxidation as a potential treatment method for high nitrogen-content wastewater

Source Based Characterization and Pollution Profile of a Baker's Yeast Industry

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