Table of Contents
Filtration Definition and Process
Filtration | Definition:
Filtration is the process of removing solid particles from a liquid or gas by passing it through a filter. The filter can be a paper filter, a cloth filter, or a screen filter. The size of the particles that are removed is determined by the size of the pores in the filter.
Filtration Definition
Filtration is the physical process of separating solids from liquids, or gases from liquids, using a filter. Filters are used in a wide variety of applications, including drinking water treatment, wastewater treatment, and chemical processing.
Understanding the Concept of Filtration
Filtration is the process of removing unwanted substances from a liquid or gas by passing it through a filter. The filter collects the substances while the liquid or gas passes through. The most common type of filter is a paper filter, which is used in coffee makers and air conditioners.
Filtration Diagram
This diagram is an example of how a filtration system works. The water enters the system through the inlet and flows through the filter media. The contaminants are trapped by the media and the clean water flows out of the outlet.
Applications of Filtration
Filtration is used in a variety of ways, including:
- Water filtration – to cleanse water of impurities
- Air filtration – to cleanse air of impurities
- Chemical filtration – to remove impurities from a liquid or gas
- Oil filtration – to cleanse oil of impurities
Seven Steps of Water Purification Process
The water purification process typically takes seven steps, although this may vary depending on the specific technology or treatment method used:
1. Screening and pre-treatment
The first step in water purification is screening and pre-treatment, which removes large objects and debris from the water. This can be done using a variety of methods, such as physical screens, filters, or sedimentation.
2. Coagulation and flocculation
In the coagulation and flocculation step, chemicals are added to the water to help clump together small particles into larger clumps. This makes them easier to remove in the next step.
3. Sedimentation
The sedimentation step uses gravity to force the clumps of particles to the bottom of the container, where they can be removed.
4. Filtration
In the filtration step, the water is passed through a filter to remove the remaining small particles. This can be done using a variety of methods, such as sand filters, activated carbon filters, or membrane filters.
5. Disinfection
The disinfection step kills any harmful bacteria or viruses in the water. This can be done using chlorine, ozone, or ultraviolet radiation.
6. pH adjustment
The pH adjustment step adjusts the acidity or alkalinity of the water to make it more suitable for human consumption.
7. Taste and odor adjustment
Taste and odor adjustment is the process of adjusting the taste and odor of water to make it more pleasing. There are a number of different ways to adjust the taste and odor of water, and each method has its own benefits and drawbacks. Some of the most common methods of adjusting the taste and odor of water include adding chlorine, adding fluoride, and adding sulfur.
