ETP Incharge Interview Questions and Answers

RO and DM plants are both used for water treatment, but they differ in the process and level of purification.

• RO (Reverse Osmosis) plant uses a semi-permeable membrane to remove impurities and contaminants from water.

• DM (Demineralization) plant uses ion exchange resins to remove mineral salts and impurities from water.

• RO plant is more effective in removing dissolved solids, while DM plant is better at removing mineral salts.

• RO plant is commonly used for desalination and produc...read more

Approximately 20% to 40% of air is required during aeration in ETP.

• Typically, 20% to 40% of air is required during aeration in ETP processes.

• The exact percentage may vary depending on the specific requirements of the treatment plant.

• Proper aeration is essential for the biological treatment of wastewater in ETP.

• Insufficient or excessive aeration can impact the efficiency of the treatment process.

Water analysis is the process of testing water quality for various parameters. HIRA stands for Hazard Identification and Risk Assessment. EIA stands for Environmental Impact Assessment.

• Water analysis involves testing water for parameters such as pH, dissolved oxygen, turbidity, and presence of contaminants like bacteria and heavy metals.

• HIRA is a process of identifying potential hazards and assessing the risks associated with them.

• EIA is a process of evaluating the potential ...read more

ETP operation involves managing and maintaining the effluent treatment plant to ensure proper treatment of wastewater.

• Monitoring and controlling the flow of wastewater into the ETP

• Regular maintenance of ETP equipment and machinery

• Ensuring compliance with environmental regulations

• Testing and analyzing treated water for quality assurance

• Implementing corrective actions when necessary