Treatment by Coagulation-Flocculation of Dairy Wastewater with the Residual Lime of National Algerian Industrial Gases Company (NIGC-Annaba)

Ayeche, Riad

doi:10.1016/j.egypro.2012.05.026

Cited by 43 publications

(13 citation statements)

References 19 publications

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“…The value of α for rotatability depends on the number of points in the factorial portion of the design, which is given in Eq. (1): (1) where N F is the number of points in the cube portion of the design (N F =2 k , k is the number of factors). Therefore, α is equal to (2 3 ) 1/4 = 1.682 according to Eq.…”

Section: Experimental Design and Data Analysismentioning

confidence: 99%

“…Therefore, α is equal to (2 3 ) 1/4 = 1.682 according to Eq. (1). The relationship between the coded (x i ) and actual (X i ) values of factors and the ranges of levels are given in Table 1, in which the range of factors is expressed by the values of X min (minimum value of X) and X max (maximum value of X).…”

Section: Experimental Design and Data Analysismentioning

confidence: 99%

“…Colloidal particles can be settled and removed easily by neutralization and making them closer. Recently, many studies have been conducted about using the coagulation-flocculation in industries, e.g., dairy [1], pulp [2], drinking water treatment [3], municipal wastewater treatment and pretreatment of landfill leachate [4].…”

Section: Introductionmentioning

confidence: 99%

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Production of a biodegradable flocculant from cotton and evaluation of its performance in coagulation-flocculation of kaolin clay suspension: Optimization through response surface methodology (RSM)

Nourani

Baghdadi

Javan

et al. 2016

Journal of Environmental Chemical Engineering

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Flocculants are widely used along with coagulant to increase the efficiency of coagulation-flocculation process for removal of colloidal particles from wastewaters. The most widely used flocculants are synthetic which have some problems such as non-biodegradability and release of toxic residual monomers. The main aim of this study is to evaluate the performance of cellulose sulfate (CS), which was synthesized through sulfonation of cotton, as a biodegradable and natural-based flocculant. Reaction time as an important factor in the sulfonation reaction was optimized for obtaining CS with high charge density and suitable fiber size. The sulfate content, charge density (CD) and morphology of each CS were determined to investigate and select the best CS for the flocculation process. A suspension containing kaolin clay was used as a colloidal test solution and coagulation was performed using alum (as a coagulant) and CS (as a flocculant). Optimization was performed using response surface methodology (RSM). The optimization results showed that CS had a good performance in turbidity reduction in coagulation-flocculation treatment and maximum turbidity reduction (98.9 %) was obtained at alum dosage of 23.1 mg/L, CS dosage of 7.2 mg/L and pH = 6.2. The results showed that the pH variation had insignificant effect on the CS dosage. Zeta potential measurements and microscopic photos of flocs confirm charge neutralization and bridge formation in flocculation using cellulose sulfate, respectively. Also, the total chemical consumption reduced compared with the use of alum alone. As a consequence, CS can be considered as a suitable alternative for conventional flocculants.

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Section: Experimental Design and Data Analysismentioning

confidence: 99%

Section: Experimental Design and Data Analysismentioning

confidence: 99%

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Production of a biodegradable flocculant from cotton and evaluation of its performance in coagulation-flocculation of kaolin clay suspension: Optimization through response surface methodology (RSM)

Nourani

Baghdadi

Javan

et al. 2016

Journal of Environmental Chemical Engineering

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“…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%

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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Fundamentals of Chemical Coagulation and Precipitation

Shammas

Hahn

Wang

et al. 2021

Environmental Flotation Engineering

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Treatment by Coagulation-Flocculation of Dairy Wastewater with the Residual Lime of National Algerian Industrial Gases Company (NIGC-Annaba)

Cited by 43 publications

References 19 publications

Production of a biodegradable flocculant from cotton and evaluation of its performance in coagulation-flocculation of kaolin clay suspension: Optimization through response surface methodology (RSM)

Production of a biodegradable flocculant from cotton and evaluation of its performance in coagulation-flocculation of kaolin clay suspension: Optimization through response surface methodology (RSM)

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

Fundamentals of Chemical Coagulation and Precipitation

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