NecLife Manager Environment Interview Questions, Process, and Tips

ZLD stands for Zero Liquid Discharge and CTO stands for Consent to Operate.

• ZLD is a water treatment process where all wastewater is purified and recycled, leaving zero discharge at the end.

• CTO is a document issued by pollution control boards to industries allowing them to operate after meeting certain environmental standards.

• Both ZLD and CTO are important in ensuring environmental sustainability and compliance with reg

Basis treatment techniques for wastewater COD include biological treatment, chemical treatment, and physical treatment.

• Biological treatment involves using microorganisms to break down organic matter in the wastewater.

• Chemical treatment involves adding chemicals to the wastewater to facilitate the removal of COD.

• Physical treatment methods include processes like filtration, sedimentation, and adsorption to reduce COD lev...read more

Environment compliances in industries include following regulations and guidelines to minimize impact on environment.

• Obtaining necessary permits and licenses for operations

• Implementing pollution control measures

• Proper waste management and disposal practices

• Regular monitoring and reporting of emissions and effluents

• Compliance with environmental laws and regulations

• Implementing sustainable practices to reduce environment

ZLD parameters as per PPCB include TDS, pH, BOD, COD, and heavy metals.

• Total Dissolved Solids (TDS) should be reduced to minimum levels.

• pH should be within the permissible range set by PPCB.

• Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) levels should be minimized.

• Heavy metals such as lead, mercury, and chromium should be effectively removed.

• Effluent should meet the standards set by Punjab Pollution Con

Reverse osmosis is a water purification process that uses a partially permeable membrane to remove ions, molecules, and larger particles from drinking water.

• Reverse osmosis is a water treatment process that uses pressure to force water through a membrane, removing impurities.

• It is commonly used in desalination plants to turn seawater into drinking water.

• Reverse osmosis systems are also used in households to purify drin...read more

Troubleshooting in Bio ETP involves identifying and resolving issues in the biological effluent treatment process.

• Monitor key parameters such as pH, temperature, dissolved oxygen levels, and organic load regularly.

• Check for any signs of foaming, odors, or unusual color in the treated water, which may indicate problems with the microbial population.

• Inspect mechanical components such as pumps, aerators, and mixers for pr...read more

Parmates in outlet in ETP are microorganisms that help in breaking down organic matter in the effluent treatment plant.

• Parmates are essential for the biological treatment process in ETPs.

• They help in breaking down organic pollutants into simpler, less harmful substances.

• Examples of parmates include bacteria, fungi, and algae.

• Proper maintenance of parmates is crucial for the efficient functioning of ETPs.