Water Quality and Purification Quiz

Water suitable for human consumption, usually sourced from surface or underground sources. It must be clear, colorless, odorless, tasteless, and free from harmful substances.

The concept of perfectly pure H2O, which is impossible to achieve in practice due to contamination during storage.

Substances dissolved in water, such as salts, carbohydrates, or other compounds.

Particles suspended in water, visible to the naked eye, such as dirt or sand.

Tiny particles in water, between 0.005 and 0.2µ, that remain suspended due to their surface charge.

Living organisms in water, including bacteria, fungi, viruses, and algae.

The process of removing impurities from water to improve its purity.

Different levels of purity specified for water used in pharmaceuticals, based on the intended use.

Water purified for pharmaceutical use, containing minimal impurities, but not sterile.

Sterile water for injections, free from microorganisms and endotoxins.

Processes used to remove unwanted substances from water, like impurities, bacteria, or toxins.

A common method for water purification where impurities are removed by passing water through a bed of ion-exchange resins.

A more efficient version of deionization, using electrical current to remove ions from water.

A traditional method that involves heating water to vaporize it and collecting the condensed vapor to remove impurities.

A membrane-based technology where water is forced through a semipermeable membrane that removes dissolved impurities.

Processes that include filtration to remove particulates, softening to reduce hardness, and sanitization to kill harmful bacteria.

Quality control procedures implemented to ensure water used in pharmaceutical manufacturing meets required standards.

A process that uses ion exchange resins, electric charges, and selectively permeable membranes to remove dissolved ions from water.

A series of steps taken to remove impurities from water, ensuring it meets specific quality standards for pharmaceutical use.

Specific water quality standards are determined based on the intended use of the water in the pharmaceutical process. The decision tree guides selection of appropriate water quality for different purposes.

Small, solid particles that attract and hold dissolved ions in water.

A compartment where water is purified by removing dissolved ions.

Compartments that collect and concentrate the removed ions from the water.

A positively charged electrode that attracts negatively charged ions (anions) to the opposite side of the resin bed.

These are the main focus of the water purification process, which includes a variety of unit operations and control measures for achieving the desired water quality. More detailed information can be found online.

A negatively charged electrode that attracts positively charged ions (cations) to the opposite side of the resin bed.

Thin, semi-permeable barriers that control the flow of ions from one compartment to another.

The aim of these steps is to ensure the subsequent purification steps function efficiently and achieve the desired high-quality water.

The entire system of purification steps is linked together, ensuring a progressive and continuous process of achieving increasingly higher water quality.

The process of automatically replenishing the ion exchange resins within the EDI unit by splitting water molecules into hydrogen and hydroxyl ions.

A simple distillation apparatus with one heating and condensation cycle.

A component that prevents liquid droplets from being carried over during distillation.

Gases that readily evaporate at room temperature.

Substances that do not easily evaporate at room temperature.

Gases dissolved in water, such as carbon dioxide, ammonia, chlorine, and amines.

Water that has been purified by distillation.

A type of distillation with multiple heating and condensation cycles to further purify the water.

A water purification system designed to produce purified water, often used for injection into medical devices or equipment.

A component of a water purification system that removes dissolved salts, making water softer.

A closed loop system that circulates purified water throughout a facility for different processes.

The process of ensuring water quality meets specific standards for safety and purity.

The primary hazard in water purification systems, requiring careful design and operation to prevent contamination.

The use of rigorous tests to ensure the effectiveness of water purification systems, often exceeding regulatory requirements.