Interview Questions and Answers

The membrane Mak is a measure of the membrane's ability to remove contaminants from water in a reverse osmosis plant.

• Membrane Mak refers to the membrane's efficiency in removing impurities from water.

• It is a measure of the membrane's rejection rate for different contaminants.

• Higher Mak values indicate better performance of the membrane.

• Mak is typically expressed as a percentage.

• For example, a membrane with a Mak of 98% means it can remove 98% of contaminants from the water.

MGF stands for Mixed Growth Factor.

• MGF is a term commonly used in the field of biotechnology and cell culture.

• It refers to a mixture of growth factors that are used to stimulate cell growth and proliferation.

• These growth factors can include proteins, hormones, and other signaling molecules.

• MGF is often used in research and in the production of therapeutic proteins and vaccines.

• Examples of commonly used MGFs include epidermal growth factor (EGF), fibroblast growth factor (FGF)...read more

Backwash is the process of reversing the flow of water through a filter to clean and remove accumulated debris.

• Backwash is a common operation in water treatment plants and filtration systems.

• It helps to remove trapped particles, dirt, and impurities from the filter media.

• During backwashing, water flows in the opposite direction, dislodging and flushing out the accumulated contaminants.

• The backwash water is usually discharged to a drain or a separate treatment process.

• Backwash...read more

ACF stands for Activated Carbon Filter.

• ACF is a type of water treatment filter used to remove impurities and contaminants from water.

• It uses activated carbon, which has a high surface area and adsorptive properties, to trap and remove pollutants.

• ACF is commonly used in reverse osmosis (RO) plants to improve water quality before the RO process.

• It can effectively remove chlorine, organic compounds, and certain heavy metals from water.

• ACF needs periodic maintenance, such as carb...read more

The pH of RO water is typically slightly acidic, ranging from 5.5 to 7.0.

• RO water has a lower pH compared to tap water

• The pH of RO water can vary depending on the source water and the efficiency of the RO system

• Maintaining the pH of RO water within the acceptable range is important for various applications such as drinking water and industrial processes

RO water conductivity is a measure of its ability to conduct an electric current and indicates the level of impurities present.

• RO water conductivity is measured in microsiemens per centimeter (µS/cm).

• Lower conductivity indicates purer water with fewer dissolved solids.

• Higher conductivity suggests the presence of impurities such as salts, minerals, or organic matter.

• Monitoring RO water conductivity helps ensure the effectiveness of the reverse osmosis process.

• Regular testing a...read more

Antiscalet is used to prevent the formation of scale in RO plants.

• Antiscalet is a chemical additive used in reverse osmosis (RO) plants.

• It helps to prevent the formation of scale on the RO membranes.

• Scale is a buildup of mineral deposits that can reduce the efficiency of the RO system.

• Antiscalet works by inhibiting the crystallization of minerals, such as calcium and magnesium, that can form scale.

• By using antiscalet, the lifespan of the RO membranes can be extended and the o...read more

Suspended particles can be removed through various methods.

• Sedimentation - allowing particles to settle at the bottom of a container

• Filtration - passing water through a filter media to trap particles

• Coagulation - adding chemicals to clump particles together for easier removal

• Flocculation - gently stirring water to encourage particles to clump together

• Ultrafiltration - using a membrane to physically block particles from passing through