Biodegradability evaluation of dairy effluents originated in selected sections of dairy production

SummaryThe milk processing industry is one of the world's staple industries, thus the treatment possibilities of dairy effl uents have been att racting more and more att ention. The purpose of the paper is to review contemporary research on dairy wastewater. The origin, categories, as well as liquid by-products and general indicators of real dairy wastewater are described. Diff erent procedures applied for dairy wastewater management are summarised. Att ention is focused on in-factory treatment technologies with the emphasis on biological processes. Aerobic and anaerobic methods with both their advantages and disadvantages are discussed in detail. Consecutive anaerobic and aerobic systems are analysed, too. Finally, future research niches are identifi ed.

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“…COD=chemical oxygen demand, BOD u =ultimate biological oxygen demand (1, [3][4][5][6][7]9,11,13,14,17,18,20,22,23,35) Milk reception …”

Section: Dairy Wastewater Compositionmentioning

confidence: 99%

“…Daily and hourly changes are the consequence of washing the equipment and fl oors as the fi nal step in every process cycle. Seasonal variations can be att ributed to a higher dairy plant load in summer than in winter (20). One way of explaining hourly homogeneity is by coeffi cients in the range of 1.4-2.0 (6).…”

Section: Wastewater Volumementioning

confidence: 99%

Dairy Wastewaters – General Characteristics and Treatment Possibilities – A Review

Slavov

2017

Food Technol. Biotechnol.

167

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“…To calculate the rates (r V , r X ), a simplification was assumed that concentrations of organic compounds and nutrients at the end of the processing phase are equal to the concentrations at the start of the subsequent SBR processing phase. It was also assumed that changes in biomass of the activated sludge during an 8-hour SBR cycle are not significant [1,2,14]. Accordingly, the equation takes the following form:…”

Section: Methodsmentioning

confidence: 99%

“…Data on qualitative and quantitative characteristics of raw dairy sewage are relatively well-documented [4][5][6][7][8][9][10][11][12][13][14][15][16], but at the same time there are serious gaps in relation to the municipal sewage with a specific share of industrial (dairy) wastewater. For this reason, it is impossible to compare the results with literature data.…”

Section: Rates Of Parameters Change In Wastewater In Various Stages Omentioning

confidence: 99%

“…Additional oscillations relate to the daily and hourly shift work dependent on the size, production profile, and shifts at milk processing plant [4][5][6][7][8][9][10][11][12]. Biological treatment of dairy wastewater is high-efficient due to the significant share of easily biodegradable substances [13][14][15][16]. It is possible to co-treat the dairy and municipal wastewater to achieve the desired C:N:P ratio in order to carry out highly effective denitrification and biological phosphorus removal.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Rate of change in concentration of organic compounds and nutrients in municipal and dairy wastewater treated in full technical SBR scale

Struk-Sokołowska

Puchlik

2017

E3S Web Conf.

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Abstract. Municipal WWTP often receive the industrial wastewater, including dairy sewage. The problem of sewage treatment from this sector of economy is not completely solved, especially in plants of medium and small milk processing capacity. The aim of the study was to determine the rate of change in organic compounds and nutrients in municipal wastewater with the participation of dairy products during the processing phases of SBR-type reactor in a technical scale. The study was conducted in WWTP in Sokolka. Rate of changes in the concentrations of organic compounds, nitrogen and phosphorus in wastewater during the processing phases of SBR reactor was determined. Presence of dairy sewage (13% volume participation) affected the decrease in the rate of changes in organic compounds concentrations defined as BOD 5 during all processing phases of SBR reactor. Significant influence of dairy sewage on rates of change in nitrogen and phosphorus compounds concentrations during filling, aeration, stirring, sedimentation and decantation phases, was found.

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General Application for the Treatment of Effluent and Reuse of Wastewater

Milne

Gray

2012

Membrane Processing

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Biodegradability evaluation of dairy effluents originated in selected sections of dairy production

Cited by 138 publications

References 16 publications

Dairy Wastewaters – General Characteristics and Treatment Possibilities – A Review

Dairy Wastewaters – General Characteristics and Treatment Possibilities – A Review

Rate of change in concentration of organic compounds and nutrients in municipal and dairy wastewater treated in full technical SBR scale

General Application for the Treatment of Effluent and Reuse of Wastewater

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