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Hazardous Waste Management Practice Test: Chemical, Physical & Biological Treatment
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Avg score: 60% Most missed: “Higher loading level increase BOD removal efficiency.”
Chemical, Physical & Biological Treatment opics include: Neutralization, precipitation, stabilisation and solidification, reduction and oxidation, ion exchange, evaporation, stripping, sorption, aerobic and anaerobic systems. Chemical, physical, and biological treatment processes remove pollutants from wastewater. These processes can include: Chemical treatment: Adding chemicals to wastewater to remove pollutants or reduce their concentration. This process is important to ensure wastewater meets regulatory standards and doesn't harm public health or the environment. Physical treatment:... Show more
Hazardous Waste Management Practice Test: Chemical, Physical & Biological Treatment
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25 Questions

1. Stripping is widely used to remove _________
2. The gases produced from anaerobic degradation process are ________ and ________
3. Oxidation avoids harmful side reactions.
4. Which of the following resin can be used to remove copper plating rinse water?
5. Higher loading level increase BOD removal efficiency.
6. Chemical precipitation treatment is user economic.
7. Precipitation by ___________ is widely used method for treating hazardous waste.
8. Removal of organic and inorganic substance from aqueous waste through activated carbon is accomplished by _____
9. Electroplating wastes can be treated from ________ process.
10. The use of adsorbent to remove targeted substance in a solution is called _________
11. Which among the following is cheapest oxidizing reagent?
12. Solidification refers to changes in the ________ properties of hazardous waste.
13. _______ is used for precipitation of heavy metals.
14. Smaller packing material size in stripping increases ____________
15. Suitable method for treating acidic or basic hazardous waste is _________
16. Which of the following factors control sorption phenomenon?
17. Non-methanogenic and methane-producing organisms effect anaerobic treatment.
18. The temperature range for aerobic process is __________ degree Celsius.
19. ________ treatment method prevent immobilization of hazardous waste into environment.
20. Height of packed stripping tower affects ________
21. Chemical precipitation is used in conjunction with neutralisation.
22. Common reagents for neutralising acid wastes are __________
23. Rotary air stripping uses ____________ force.
24. Evaporator must have sufficient disc engaging space to achieve ________
25. __________ is the contaminant that adheres to the sorbing material.