Environmental Engineer Interview Questions and Answers

Water treatment is the process of removing contaminants from water to make it safe for various uses.

• Water treatment involves various physical, chemical, and biological processes.

• Common methods of water treatment include filtration, disinfection, and sedimentation.

• Water treatment plants use processes like coagulation, flocculation, and chlorination.

• Water treatment is essential for providing clean drinking water and preventing waterborne diseases.

• Examples of water treatment sys...read more

STP stands for Sewage Treatment Plant and ETP stands for Effluent Treatment Plant. They are used to treat wastewater before releasing it back into the environment.

• STP is used to treat sewage from residential and commercial buildings before releasing it back into the environment.

• ETP is used to treat industrial wastewater before discharging it into water bodies or sewage systems.

• Both STP and ETP help in reducing the pollution caused by untreated wastewater and protect the envir...read more

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

• Reverse osmosis is a filtration method that removes contaminants from water by applying pressure to force it through a semipermeable membrane.

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

• Reverse osmosis can remove various impurities including dissolved salts, bacteria, viruses, and organic compounds...read more

PM 10 and PM 2.5 are particulate matter with diameters of 10 micrometers and 2.5 micrometers respectively.

• PM 10 refers to inhalable particles that can penetrate into the respiratory system.

• PM 2.5 refers to fine particles that are smaller and can penetrate deeper into the lungs.

• Both PM 10 and PM 2.5 are air pollutants and can have adverse health effects.

• Examples of PM 10 sources include dust, pollen, and mold spores.

• Examples of PM 2.5 sources include combustion particles from ...read more

Waste water treatment is the process of removing contaminants from wastewater to make it safe for discharge or reuse.

• Waste water treatment involves physical, chemical, and biological processes to remove pollutants from water.

• Common methods include sedimentation, filtration, disinfection, and biological treatment.

• The goal is to produce treated water that meets environmental regulations and can be safely discharged into the environment or reused for various purposes.

• Examples of...read more

Baseline monitoring collection process involves gathering data on environmental conditions before any changes are made.

• Baseline monitoring involves collecting data on air quality, water quality, soil conditions, and biodiversity.

• Data is collected over a period of time to establish a baseline for comparison.

• Monitoring stations are set up in key locations to gather data continuously.

• Samples are collected using various methods such as air samplers, water sampling bottles, and so...read more

EIA notification 2006 is a regulation in India that mandates environmental impact assessments for certain projects.

• EIA notification 2006 was issued by the Ministry of Environment and Forests in India.

• It requires developers to assess the environmental impact of their projects before they can be approved.

• The notification categorizes projects into Category A and Category B based on their potential environmental impact.

• Category A projects require mandatory environmental clearance...read more

UASBR, SBR, and ASP are different wastewater treatment processes used in environmental engineering.

• UASBR stands for Upflow Anaerobic Sludge Blanket Reactor, which is a type of anaerobic treatment system for wastewater.

• SBR stands for Sequencing Batch Reactor, which is a type of activated sludge process that treats wastewater in batches.

• ASP stands for Activated Sludge Process, which is a biological wastewater treatment process that uses microorganisms to break down organic matt...read more