Investigation of the Effectiveness of Polymers in the Treatment of Nitrocellulose-Manufacturing Wastewater
Final rept. Jun 75-Mar 76
RENSSELAER POLYTECHNIC INST TROY NY
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The effectiveness of organic polymers in the treatment of two types of industrial wastewaters has been investigated. The experimental study consisted of initially performing batch jar tests followed by continuous filtration runs with the wastewater, using the results obtained in the jar tests. Six polymers were used in the experiments to determine optimum type and dosage required for effective turbidity removal. Cationic and non-ionic polymers proved to be the most effective in coagulation by the predominant mechanisms of charge neutralization and interparticle bridging, respectively. Bentonite and lime were also used quite effectively as coagulant aids in conjunction with the various polymers. The best method selected for the treatment of wastewater consisted of the addition of 100 mgl Cat Floc cationic polymer and 100 mgl of powdered bentonite clay to the wastewater in a batch unit and after sedimentation, filtration of the supernatant at a flow rate of 4 gpm sq ft.
- Industrial Chemistry and Chemical Processing
- Water Pollution and Control