- Jan 28, 2026
- Ravi Enviro
- Waste water
- 0 Comments
Clean water plays an important role in industrial production processes. Whether it is manufacturing, food & beverages or pharmaceuticals, a supply of high-purity water is crucial for operations. Industrial water treatment filters ensure that a high degree of pure water, free from contamination, is used in industrial applications. These industrial filters in wastewater treatment plants help businesses meet relevant industry standards, protect equipment and improve overall water quality. In this blog, we discuss the different types of water treatment filters, their importance and how to choose the right industrial water filter.
What is an Industrial Filter?
Industrial filters are systems that remove unwanted materials from water or wastewater streams used in industrial applications. They help produce clean and high-purity water by removing impurities and contaminants through filtration media and technologies. Some of the common filters offered by the water treatment plant supplier in India are activated carbon filters, sand filters, side stream filters, walnut shell filters, membrane filters and others.
What are the Different Types of Industrial Water Filters?
There are many types of industrial water filters with specific features, suitable for diverse water treatment requirements. The following are common types of industrial water filters used in wastewater treatment plants:
➤ Activated Carbon Filters: The activated carbon filters effectively remove organic matter, odours and chlorine. Their strong adsorption capacity and microporous structure allow them to remove organic substances, making water free from contaminants & impurities.
➤ Pressure Sand Filters (PSF): These industrial water filters are enclosed vessels filled with layers of sand and gravel that serve as a filtration media. Pressure and filters are highly effective in removing debris, turbidity and pollutants from raw water.
Read: Types of Aerators Used in Wastewater Treatment
➤ Side Stream Filters: A side stream filter is a specialized filtration system designed by water treatment plant suppliers in India. These filters remove biological contaminants, suspended solids and other impurities, particularly in cooling towers.
➤ Walnut Shell Filters: With natural strength, excellent filtration properties and high durability, walnut shell filters are another popular filter. It works great in separating oil, grease, hydrocarbons and suspended solids in wastewater.
➤ Membrane Filters: These filters employ semi-permeable membranes to separate contaminants from water streams. REIPL is a leading Sumitomo membrane distributor and supplier in India, offering Sumitomo Poreflon membranes at the best prices.
Benefits of Industrial Filters in Wastewater Treatment Plants
➤ Better Product Quality: In industries such as food & beverage and pharmaceutical, high-purity water is essential. Industrial filters remove impurities and contaminants that can impact the quality of end products.
➤Equipment Protection: High-purity filtered water prevents issues like scaling, clogging and corrosion in equipment like manufacturing machinery and tools. Filters reduce maintenance costs and prolong equipment service life.
➤ Compliance with Industry Standards: Manufacturing, food & beverages, and pharmaceutical sectors require meeting stringent regulatory standards. Industrial filters ensure businesses meet standards and reduce environmental impacts.
What are the Applications of Industrial Filters?
➤ Manufacturing: Industries like electronics and automotive rely on clean water for various processes. Industrial filters reduce scale build-up, protect equipment and help businesses meet industry standards.
➤ Food & Beverage Industry: Water is an integral ingredient in the food and beverage industry. REIPL filters are widely used to purify water sources and ensure the highest quality standards are met.
➤ Pharmaceutical & Biotechnology: Filters are used to purify water in pharmaceutical processes as well as for cleaning purposes. For larger facilities, effluent treatment plants are used to treat process water and remove contaminants that could compromise efficacy and safety.
➤ Wastewater Management: Filters are indispensable in wastewater treatment plants, like effluent treatment plants (ETPs) and sewage treatment plants (STPs). These systems treat wastewater, ensuring discharged water meets rigorous environmental standards and avoids penalties and public scrutiny.
How to Choose Industrial Water Filters?
The following is a guide to when to choose which filters:
➤ Pressure Sand Filters & Side Stream Filters: It is suitable for the primary filtration stage to handle turbidity, suspended particles and large particulate matter.
➤ Walnut Shell Filters: These are best suitable for specialized applications where water is contaminated with oil and grease in industries like oil refineries, petrochemical plants, car wash centres, etc.
➤ Activated Carbon Filters: It is best suitable for the secondary treatment stage to remove unwanted taste, odour, colour and chemical impurities.
➤ Membrane Filters: These filters (microfiltration, ultrafiltration, reverse osmosis and nanofiltration) are used for advanced purification in industries like food & beverage, pharmaceutical and related industries.
| Filter Type | Primary Contaminants Removed | Typical Application |
| Pressure Sand Filter | Suspended solids, turbidity, sediment | Primary (pre-treatment) |
| Activated Carbon Filter | Chlorine, organics, taste, odour, colour | Secondary |
| Walnut Shell Filter | Oil, hydrocarbons, suspended solids | Specialized industrial applications |
| Side Stream Filter | Fine particles in circulating water | Continuous filtration of side loops |
| Membrane Filter | Microorganisms, microscopic particles, dissolved salts | Advanced/Final stage (high purity needs) |
Are You Looking for Industrial Filters?
Ravi Enviro Industries Pvt.Ltd is a leading industrial filter manufacturer in India, offering a range of filters for your specific water treatment needs. We are your one-stop destination for all your water treatment requirements, from custom ETP/STP plants, maintenance, to revamping your existing facility. We offer turn-key water treatment solutions. Check our products and request for best quotes.
Check: Difference Between Wastewater & Effluent
FAQs
➤ What filters are used in water treatment plants?
Some of the popular filter types for water treatment plants are activated carbon, sand pressure filters, side stream filters, membrane filters, etc.
➤ What is the role of industrial filters in wastewater treatment plants (WWTPs)?
Industrial filters remove suspended solids, organic matter, oil, grease, chemicals and microorganisms from wastewater. They help ensure treated water meets discharge norms or is suitable for reuse in industrial processes.
➤ Are membrane filters suitable for industrial wastewater reuse?
Yes. Membrane filters such as ultrafiltration (UF), reverse osmosis (RO) and nanofiltration (NF) are ideal for wastewater reuse applications where high-purity water is required.
➤ How often should industrial filters be serviced or replaced?
Service intervals depend on water quality, operating conditions and filter type. Regular backwashing, media replacement and system inspections help maintain consistent performance. Get in touch with REIPL for maintenance for ETP/STP plants.
