Chapter 14 Advanced Wastewater Treatments

Numerous pollutants are still present in a treated wastewater because some of them are not removed by conventional secondary wastewater treatment.

• TRUE

• FALSE

Advanced treatment is usually required after pre-treatment.

• TRUE

• FALSE

Secondary treatment has low treatment efficiency for the following parameters EXCEPT ________.

• Turbidity

• Nutrients

• Heavy metals

• Resistant organisms

Which of the followings is NOT considered as micro pollutants.

• Suspended solids

• Pharmaceutical and personal care products

• Organic chemicals

• Heavy metals

What DOES NOT removed by filtration?

• Residual suspended solids

• Microorganisms

• Soluble BOD or COD

In carbon adsorption, carbon is heated to about ________ to 'activate' the carbon surface for adsorption process.

• 1000 deg Celcius

• 1500 deg Celcius

• 1700 deg Celcius

In carbon adsorption, high surface area of particles with vast pore spaces (> 1000 m^2/g) is capable of ________.

• Absorbing high quantity of organics.

• Absorbing high quantity of inorganics.

• Absorbing low quantity of organics.

• Absorbing high quantity of inorganics.

In carbon adsorption, carbon becomes exhausted is indicated by

• Higher removal of pollutant

• Less removal of pollutant

• Effluent pollutant level too low

Ultra/Microfiltration is possible to remove particles, colloids and macro and micro molecules, so that wastewater can be disinfected in this way.

• TRUE

• FALSE

Membrane filtration is a phase that acts as a barrier to the flow of molecular or ionic species between other phases is driven by vacuum.

• TRUE

• FALSE