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Full-Text Articles in Water Resource Management
A Comparative Study Of Biopolymers And Alum In The Separation And Recovery Of Pulp Fibres From Paper Mill Effluent By Flocculation, Sumona Mukherjee
A Comparative Study Of Biopolymers And Alum In The Separation And Recovery Of Pulp Fibres From Paper Mill Effluent By Flocculation, Sumona Mukherjee
Sumona Mukherjee
Abstract Recovery of cellulose fibres from paper mill effluent has been studied using common polysaccharides or biopolymers such as Guar gum, Xanthan gum and Locust bean gum as flocculent. Guar gum is commonly used in sizing paper and routinely used in paper making. The results have been compared with the performance of alum, which is a common coagulant and a key ingredient of the paper industry. Guar gum recovered about 3.86 mg/L of fibre and was most effective among the biopolymers. Settling velocity distribution curves demonstrated that Guar gum was able to settle the fibres faster than the other biopolymers; …
Clarification Of Rubber Mill Wastewater By A Plant Based Biopolymer – Comparison With Common Inorganic Coagulants, Sumona Mukherjee
Clarification Of Rubber Mill Wastewater By A Plant Based Biopolymer – Comparison With Common Inorganic Coagulants, Sumona Mukherjee
Sumona Mukherjee
Background In this study, the efficiency of Guar gum as a biopolymer has been compared with two other widely used inorganic coagulants, ferric chloride (FeCl3) and aluminum chloride (AlCl3), for the treatment of effluent collected from the rubber-washing tanks of a rubber concentrate factory. Settling velocity distribution curves were plotted to demonstrate the flocculating effect of FeCl3, AlCl3 and Guar gum. FeCl3 and AlCl3 displayed better turbidity removal than Guar gum at all settling velocities. Result FeCl3, AlCl3 and Guar gum removed 92.8%, 88.2% and 88.1% turbidity, respectively, of raw wastewater at a settling velocity of 0.1 cm min−1, respectively. …