1
ArulmiguMeenakshi Amman College of Engineering
Vadamavandal-604410.
Important questions and answers
CY25C01 –Applied Chemistry-I
Prepared by
V.Umapathy,
Prof. /Mech.
S.No. Questions and answers
Unit-I
Water Technology
2 – marks question and answers
1. What are the main objectives of water treatment?
- To remove pollutants and contaminants from water, to improve water quality, and to make water safe for human
consumption and industrial use.
2. What are the common water treatment processes?
- Coagulation, flocculation, sedimentation, filtration, disinfection, and desalination.
3. What are the advantages of municipal water treatment?
- Provides safe drinking water, reduces waterborne diseases, and improves public health.
4. What are the challenges of municipal water treatment?
- Aging infrastructure, increasing population, and climate change.
5. What are the benefits of desalination?
- Provides fresh water in areas where it is scarce, reduces dependence on rainfall, and can be used for industrial
and agricultural purposes.
, 2
6. What are the main water quality parameters?
- pH, turbidity, total dissolved solids (TDS), biochemical oxygen demand (BOD), chemical oxygen demand
(COD), and bacterial contamination.
7. What are the standards for drinking water quality?
- The standards for drinking water quality are set by the World Health Organization (WHO) and include
parameters such as pH, TDS, BOD, COD, and bacterial contamination.
8. What is remediation?
- Remediation is the process of removing pollutants from contaminated water or soil.
9. What is desalination?
- Desalination is the process of removing salt and other minerals from seawater or brackish water to produce fresh
water.
10. What are the challenges of desalination?
- High energy costs, environmental concerns, and brine disposal issues.
13 and 15 marks question and answers
11. Describe quality parameters and standards for drinking water.
, 3
Water Quality Parameters and Standards
, 4
Water quality parameters and standards are essential for ensuring safe and healthy water for human consumption,
aquatic life, and environmental sustainability.
Key Water Quality Parameters:
1. Physical Parameters:
- Turbidity (clarity)
- Temperature
- Color
- Odor
2. Chemical Parameters:
- pH
- Total Dissolved Solids (TDS)
- Heavy metals (e.g., lead, mercury)
- Nutrients (e.g., nitrogen, phosphorus)
3. Biological Parameters:
- Bacteria (e.g., E. coli)
- Viruses
- Protozoa
Water Quality Standards:
1. Drinking Water Standards: Set by organizations like the World Health Organization (WHO) and the
Environmental Protection Agency (EPA).
ArulmiguMeenakshi Amman College of Engineering
Vadamavandal-604410.
Important questions and answers
CY25C01 –Applied Chemistry-I
Prepared by
V.Umapathy,
Prof. /Mech.
S.No. Questions and answers
Unit-I
Water Technology
2 – marks question and answers
1. What are the main objectives of water treatment?
- To remove pollutants and contaminants from water, to improve water quality, and to make water safe for human
consumption and industrial use.
2. What are the common water treatment processes?
- Coagulation, flocculation, sedimentation, filtration, disinfection, and desalination.
3. What are the advantages of municipal water treatment?
- Provides safe drinking water, reduces waterborne diseases, and improves public health.
4. What are the challenges of municipal water treatment?
- Aging infrastructure, increasing population, and climate change.
5. What are the benefits of desalination?
- Provides fresh water in areas where it is scarce, reduces dependence on rainfall, and can be used for industrial
and agricultural purposes.
, 2
6. What are the main water quality parameters?
- pH, turbidity, total dissolved solids (TDS), biochemical oxygen demand (BOD), chemical oxygen demand
(COD), and bacterial contamination.
7. What are the standards for drinking water quality?
- The standards for drinking water quality are set by the World Health Organization (WHO) and include
parameters such as pH, TDS, BOD, COD, and bacterial contamination.
8. What is remediation?
- Remediation is the process of removing pollutants from contaminated water or soil.
9. What is desalination?
- Desalination is the process of removing salt and other minerals from seawater or brackish water to produce fresh
water.
10. What are the challenges of desalination?
- High energy costs, environmental concerns, and brine disposal issues.
13 and 15 marks question and answers
11. Describe quality parameters and standards for drinking water.
, 3
Water Quality Parameters and Standards
, 4
Water quality parameters and standards are essential for ensuring safe and healthy water for human consumption,
aquatic life, and environmental sustainability.
Key Water Quality Parameters:
1. Physical Parameters:
- Turbidity (clarity)
- Temperature
- Color
- Odor
2. Chemical Parameters:
- pH
- Total Dissolved Solids (TDS)
- Heavy metals (e.g., lead, mercury)
- Nutrients (e.g., nitrogen, phosphorus)
3. Biological Parameters:
- Bacteria (e.g., E. coli)
- Viruses
- Protozoa
Water Quality Standards:
1. Drinking Water Standards: Set by organizations like the World Health Organization (WHO) and the
Environmental Protection Agency (EPA).
