Starch Wastewater Treatment and Value Addition Quiz

Optimum pH range for biological activity in wastewater treatment?

• pH 4.0 - 6.0

• pH 8.0 - 10.0

• pH 6.5 - 8.5

• pH 5.0 - 7.0

Method used for treating starch wastewater with low concentration using activated carbon?

• Membrane filtration

• Adsorption method

• Chemical precipitation

• Biological flocculation

Main advantage of using microbial flocculant for starch wastewater treatment?

• High energy consumption

• Good turbidity removal effect

• Harmful to human and livestock

• Secondary pollution

How does the viscosity of starch wastewater impact treatment processes?

• Viscosity of starch wastewater can disrupt treatment efficiency and needed specialized equipment.

• Viscosity has no effect on treatment processes.

• Starch wastewater is always easy to treat regardless of viscosity.

• Higher viscosity improves treatment efficiency.

Enzyme which responsible for converting starch into sugars in the biofuel transformation process?

• Cellulase

• Lipase

• Protease

• Amylase

Primary use of starch-based films?

• Construction materials

• Coating materials for food articles

• Fuel production

• Medicinal products

Potential use of biological solids waste from the secondary treatment process?

• Fertilizer

• Animal feed

• Building material

• Fuel

Main application of mesoporous carbonaceous materials derived from waste starch?

• Catalysis, adsorption, and chromatography

• Food packaging

• Water treatment

• Textile production

Primary function of starch in the paper industry?

• Coloring agent

• Preservative

• Adhesive and retention aid

• Fragrance enhancer

How can by-products rich in fibre, protein, and antioxidants be used in food products?

• Substitute fat

• Increase sugar content

• Substitute sugar

• Increase fat content