1.a Injecting a gas (usually air or oxygen) at the bottom of a tank so that the turbulence caused by the rising gas bubbles serves to mix the liquid contents of the tank is called _________ mixing. b. The term ____________ encompasses the physical processes whereby the size of suspended particles increases as a result of particle cohesion following collisions brought about by the random thermal motion of fluid molecules and/or mixing of the bulk fluid containing the particles. c. Turbine and propeller type mechanical mixers used for rapid mixing of reagent chemicals have either -flow impellers with flat or curved blades located parallel to the axis of the drive shaft, or -flow impellers with blades making an angle of less than 90o with the drive shaft.
1.a Injecting a gas (usually air or oxygen) at the bottom of a tank so that the turbulence caused by the rising gas bubbles serves to mix the liquid contents of the tank is called _________ mixing.
b. The term ____________ encompasses the physical processes whereby the size of suspended particles increases as a result of particle cohesion following collisions brought about by the random thermal motion of fluid molecules and/or mixing of the bulk fluid containing the particles.
c. Turbine and propeller type
d.Colloidal particles typically have a negative surface charge that attracts oppositely charged positive ions in the surrounding bulk solution. These so-called _______-ions are held at the particle surface through electrostatic and van der Waals forces of attraction strongly enough to overcome thermal agitation.
e. ClO– is called the ____________ ion. It is important in chemical chlorination processes.
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