Copolymerization of ethyl acrylate onto guar gum for the adsorption of Mg(II) and Ca(II) ions

Fosso‐Kankeu, Elvis; Waanders, F.B.; Maloy, E.

doi:10.1080/19443994.2016.1165147

Cited by 26 publications

(20 citation statements)

References 22 publications

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“…The wastewater effluent consists of water, residual biodiesel, soap, salts, methanol, un-reacted oil, and glycerol (main by-product) [1]. The discharge of such water in the environment will exacerbate the problem of water in a country considered as water scarce [14][15][16][17][18][19][20][21][22][23][24] Flocculation is widely used in water treatment. Flocculation has advantages in treating wastewater containing oil, as it has no phase transition, operation is easy, affordable, and has an overall good treatment efficiency [25].…”

Section: Introductionmentioning

confidence: 99%

Removal of COD from Biodiesel Wastewater using a Hydrophobic Polymer

Fosso‐Kankeu¹,

Berg²,

Waanders³

et al. 2018

ASETH-18,ACABES-18 &Amp; EBHSSS-18 Nov. 19-20 2018 Cape Town (South Africa)

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Biodiesel production is increasing internationally as an alternative fuel. This is due to the rapid depletion of non-renewable energy sources. Pure biodiesel product can be obtained by washing the product with hot water. This results in a huge quantity of wastewater that is unsafe for disposal in normal drainage systems. Treatment of this wastewater is thus important for reuse or safe disposal in the environment. There are a lot of existing treatment methods, but they are costly, produce large quantities of excessive sludge and are not economically feasible. Flocculation is widely used in water treatment as it is easy to use and affordable. Flocculants can be synthesized to treat the specific wastewater type focusing on the reduction of certain impurities. The reduction of Chemical Oxygen Demand (COD) in the biodiesel wastewater was investigated through jar-tests using hydrophobic, non-hydrophobic and a combination of hydrophobic and non-hydrophobic polymers that were synthesized. Almost 68% COD removal was obtained with the non-hydrophobic polymer and about 56% COD removal was obtained with the hydrophobic polymer. The non-hydrophobic polymer has a better removal efficiency, as the wastewater contains a large quantity of hydrophilic organic matters. Although the hydrophobic polymer also removes COD, it could be seen that the hydrophobic polymer attracted the unreacted oil in the biodiesel wastewater.

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Section: Introductionmentioning

confidence: 99%

Removal of COD from Biodiesel Wastewater using a Hydrophobic Polymer

Fosso‐Kankeu¹,

Berg²,

Waanders³

et al. 2018

ASETH-18,ACABES-18 &Amp; EBHSSS-18 Nov. 19-20 2018 Cape Town (South Africa)

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“…Water is a scarce resource not only in South Africa, but in many parts of the world [1][2][3][4][5][6][7][8][9][10][11][12][13][14]; therefore, the brewery industry like other industries are forced to consider waste water recycling as a method to save water, the environment and cut down costs on pre-treatments for discharge to municipal sewer systems. The brewery industry like any other industry is subject to tight government legislation including environmental protection laws, making discharge routes for wastewater more difficult, as routes to the sea and rivers are not options anymore.…”

Section: Introductionmentioning

confidence: 99%

Brewery Effluent Sludge Characterization and Dewatering to Increase Potential Water Recycling Capabilities

Fosso‐Kankeu¹,

Vyver²,

Moyakhe³

et al. 2018

ASETH-18,ACABES-18 &Amp; EBHSSS-18 Nov. 19-20 2018 Cape Town (South Africa)

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In this study various coagulants and flocculants were tested for optimum removal of COD from brewery wastewater. The coagulants used were ferric chloride and an organic coagulant mixture obtained from the brewery company. The flocculants used were a cationic flocculant (Genesys' genefloc, polyquaternary amine), an anionic flocculant (Senfloc 5210), a non-ionic flocculant (Senfloc 5330) and a cationic acrylamide copolymer in aqueous dispersion (Brewery flocculant) for comparison. The organic coagulant mixture in aqueous solution was more effective than the ferric chloride at the same optimal dosage of 25 ppm. The ferric chloride and organic coagulant mixture used alone achieved COD removal efficiencies of 32.7% and 48.5% at a pH of 5.65 respectively while their performances for turbidity removal at pH 5.65 were 63.3% and 91.9% respectively. The best results were achieved when using the ferric chloride in combination with the cationic acrylamide copolymer in aqueous dispersion (Brewery flocculant) at an optimum dosage of 30 ppm and when using the organic coagulant mixture in aqueous solution in combination with the cationic acrylamide copolymer in aqueous dispersion (Brewery flocculant) at an optimum dosage of 10 ppm. When using ferric chloride in combination with the cationic acrylamide copolymer in aqueous dispersion (Brewery flocculant) and the organic coagulant mixture in aqueous solution in combination with the cationic acrylamide copolymer in aqueous dispersion (Brewery flocculant), COD removal efficiencies of 79.6% and 78.2% at a pH of 5.85 respectively was achieved, while they exhibited similar performance for turbidity removal at pH 5.85 of 99.7%. The optimization tests carried out in this study have allowed to improve the understanding of turbidity and COD removal mechanisms and achieved lower dosages of coagulants and flocculants for better treatment, therefore suggesting a more economical approach. Comparing the achieved results with the standard disposal values, it can be seen that the results gathered in

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“…Makuwa is with the Water Quality Section of the Tlokwe Municipality, Potchefstroom, South Africa It has been previously reported from several countries that leachates from these municipal dumping sites (MDS) significantly contribute to the contamination of ground water [3]. Ground water which is stored in pores and fracture of rock strata constitutes an important part of available fresh water and should not be disregarded, especially in country such as South Africa where water scarcity is worsened by pollution [4][5][6][7][8][9][10][11][12]. The nature, concentration of pollutants in leachates from MDS and the degree of impact on ground water pollution will depend on the nature of solid wastes, the age of MDS as well as the stages of waste degradation at the dumping site [13].…”

Section: Introductionmentioning

confidence: 99%

Physico-Chemical Quality of Boreholes Waters at the Municipal Waste-Dumping Sites in Potchefstroom-South Africa

2017

Nov. 27-28, 2017 South Africa ASETWM-17, RCABES-17 &Amp; EBHSSS-17

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Abstract-In this study, water samples were collected from a borehole upstream of the Sewage Purification Plant (SPP) and from three boreholes at the municipal dumping sites in Felophepa near Potchefstroom and analyzed with consideration of parameters such as pH, conductivity, temperature, turbidity, metal ions and chemical oxygen demand (COD). There was a concern with regard to the quality of water which contained toxic metals such as uranium and lead, relatively high values of turbidity, TDS and COD especially at the sampling point C located in the landfill site at Felophepa. The control sample which was the water from the borehole upstream of the SPP was less polluted, while the sample from point C was the more polluted. Such investigation is encouraged to predict ground water pollution and give feedback to the municipality for proper management of the solid waste disposal at the Felophepa waste dumping site.

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Copolymerization of ethyl acrylate onto guar gum for the adsorption of Mg(II) and Ca(II) ions

Cited by 26 publications

References 22 publications

Removal of COD from Biodiesel Wastewater using a Hydrophobic Polymer

Removal of COD from Biodiesel Wastewater using a Hydrophobic Polymer

Brewery Effluent Sludge Characterization and Dewatering to Increase Potential Water Recycling Capabilities

Physico-Chemical Quality of Boreholes Waters at the Municipal Waste-Dumping Sites in Potchefstroom-South Africa

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