Type of Document Master's Thesis Author Bandak, Nazih URN etd-11152013-040418 Title Effect of mixing intensity on polymer conditioning of sludges Degree Master of Science Department Civil Engineering Advisory Committee
Advisor Name Title J. T. Novak Committee Chair C. W. Randall Committee Member W. R. Knocke Committee Member Keywords
- Sewage sludge
Date of Defense 1986-07-05 Availability restricted AbstractConditioning studies were conducted on several water and
wastewater sludges using polymers to determine the effect of
high-intensity mixing on floc formation and breakup. Mechanisms
acting in particle coagulation were also investigated.
A rapid mixing apparatus was used in conditioning the
sludge to simulate the high velocity gradients encountered
in most dewatering equipment. Anionic and cationic polymers
of varying molecular weights and an inorganic coagulant were
chosen as the conditioning agents. Dewatering rates were
measured by the capillary suction time (CST) apparatus. The
effect of rapid mixing on the polymer efficiency was evaluated
by premixing the polymer, using the same mixing apparatus,
prior to applying it to condition the sludge.
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