Reclaimed Water Treatment System: Multi-Media Filtration with Activated Carbon in Carbon Steel/SS304

304 Stainless Steel & Carbon Steel Automatic Quartz Sand & Activated Carbon Multi-Media Filter for Reclaimed Water Treatment

This fully automatic mechanical filtration system is suitable for industrial plants, mining operations, and municipal water supply facilities where filtered water turbidity is required to be below 5 mg/L, meeting drinking water quality standards. It effectively removes suspended solids from industrial wastewater, coagulating fine suspended matter into larger flocs that cannot be eliminated by sedimentation alone. By directing water through a dedicated filter media bed within a pressurized vessel, the system produces clear and purified effluent.

Also known as a pressure filter, the mechanical filter serves as essential pretreatment in pure water preparation and integrated water purification systems. Constructed in carbon steel with rubber lining or stainless steel (SS304), the unit can be filled with various filtration media—such as quartz sand, activated carbon, or manganese sand—depending on the application. These may be used individually or in combination to address specific water quality requirements.

• The multi-media filter utilizes layers of quartz sand and anthracite to remove suspended solids, mechanical impurities, and organic matter, significantly reducing water turbidity.

• The activated carbon filter employs activated carbon to adsorb pigments, organic pollutants, residual chlorine, and colloidal substances.

• The manganese sand filter is designed specifically for removing ferrous ions from water.

By directing raw water through one or more filter media under pressure, the system effectively filters out impurities. Common media include quartz sand, anthracite, porous ceramic granules, and manganese sand, which can be selected and combined based on actual needs.

This mechanical filtration method is a well-established approach to reduce turbidity and remove suspended solids, organic compounds, colloidal particles, microorganisms, chlorine odor, and certain heavy metal ions, thereby significantly improving water quality.

Process Description
The mechanical filter acts as a pretreatment unit within water treatment systems, suitable for inlet water with turbidity levels of 1–10 NTU. It effectively removes suspended solids, particles, and colloids, reducing the turbidity and SDI (Silt Density Index) of the feedwater to meet influent requirements for subsequent demineralization equipment. The unit regenerates its filtration capacity through periodic backwashing.

Widely applied in reclaimed water reuse, tap water purification, wastewater treatment, central heating, HVAC systems, heat exchange systems, and industries including construction, power generation, metallurgy, rubber, and paper manufacturing.

System Features

• Robust Construction: Fabricated from carbon steel (rubber-lined) or SS304 stainless steel.

• Efficient Operation: Fully automatic operation with compact design and user-friendly controls.

• Effective Cleaning: Simplified backwashing process without the need for a bypass line; short cleaning cycles.

• High Load Capacity: Large filtration area with high contaminant retention capability.

• Flexible Application: No temperature limitations for the process water.

• Durable & Maintainable: Long service life with easy maintenance and component accessibility.

• Advanced Backwashing: Utilizes air-water混合 (gas-liquid) backwash mode with long-stem filter nozzles and compressed air assistance for improved cleaning efficiency.

Real picture

Equipment installation

Before installation, check whether the civil foundation is constructed according to the design requirements.
The equipment shall be placed in place according to the design drawings, the outrigger sizing block shall be adjusted, and the levelness and verticality of the inlet and outlet flanges shall be checked.
Weld and fix the equipment and the embedded iron plate of the foundation, and verify the levelness and verticality of the inlet and outlet flanges again after fixing.
The piping of the equipment body shall be assembled according to the design drawing after being divided according to the number.The inner wall of each section of pipeline shall be cleaned with a clean cloth before assembly. After assembly, the piping axis shall be kept horizontal and vertical, and the valve orientation shall be reasonable (the handle of the manual valve shall face forward, and the starting head of the pneumatic valve shall face upward).
Check whether the body valve can be opened and closed flexibly, and rectify in time if there is a jam.
After the piping of the equipment body is completed, necessary support work shall be carried out for the valve group.
Install inlet and outlet water pressure gauges, sampling valves, etc. equipped on the equipment; If there is a flow probe seat on the water inlet and outlet pipe, it shall be blocked with a plug.

Company Profile

Jiangsu Longdai Environmental Protection Group Co., Ltd. is an environmental protection equipment manufacturer with 11 years of experience. It has provided a large number of sophisticated environmental protection equipment at home and abroad, established three branches in China, and cooperated with many universities to build Longdai R&D center. There are 4 middle doctors, 10 masters, and 25 senior engineers.

Main business: "Petrochemical Wastewater Treatment, Urban and Rural Wastewater Treatment, Waste Gas Collection and Treatment, Industrial Wastewater Treatment, etc."

Main equipment: "Integrated treatment equipment, grille decontamination machine, sand water separator, mud scraper, air flotation device, dosing device, sludge thickener, rotary drum micro filter, conveyor, etc."

The technical team participates in technical exchange meetings every year, exchanges experience with professionals, continuously improves technical competitiveness, and provides customers with the clearest and most practical design solutions.

The processing team controls the manufacturing details of each equipment, and manufactures the most sophisticated and reliable equipment for customers.

The company has passed ISO9001-2008 international standard quality system certification.

We look forward to contacting you, please give us a chance. I hope we can trust each other for mutual benefit and win-win results.

FAQ

Q: What certificates do you have?

A: CE/ISO/SGS

Q: Do you offer after-sales service?

A: Yes. Engineers available.

Q: How long is your warranty?

A: 2 years after the arrival of the goods. During this period, as long as it is not a man-made damage, we send the damaged parts free of charge.

Q: What about your delivery Time?

A: Normally within 45 days against down payment.

Q: What about the package of your export product?

A: We use anticorrosion wooden case with foam inside.

Q: What kind of payment do you accept?

A:T/T, L/C, PAYPAL, Cash, D/P, D/A, WESTERN UNIION, MONEYGRAM

       Jiangsu Longdai Environmental Protection Group Co., Ltd. is an environmental protection equipment manufacturer with more than 15 years of experience. It has provided a large number of sophisticated environmental protection equipment at home and abroad, established three branches in China, and cooperated with many universities to build Longdai R&D center. There are 4 middle doctors, 10 masters, and 25 senior engineers.

       Main business: "Petrochemical Wastewater Treatment, Urban and Rural Wastewater Treatment, Waste Gas Collection and Treatment, Industrial Wastewater Treatment, etc."

       Main equipment: "Integrated treatment equipment, grille decontamination machine, sand water separator, mud scraper, air flotation device, dosing device, sludge thickener, rotary drum micro filter, conveyor,Manual and Mechnical Bar Screen ,Bridge Scrapers ,Ordor Control System,Belt/Screw Conveyor,Disc Filter etc."

       Work follows 5 principles:

1.Sales

       The sales team keeps abreast of market prices and provides customers with the most accurate and most favorable quotations.

2.design

       The technical team participates in technical exchange meetings every year, exchanges experience with professionals, continuously improves technical competitiveness, and provides customers with the clearest and most practical design solutions.

3.manufacture

       The processing team controls the manufacturing details of each equipment, and manufactures the most sophisticated and reliable equipment for customers.

4.transportation

       The transportation team has been to every corner at home and abroad, and has never made any mistakes, planning the best route, and transporting equipment for customers is the fastest and safest.

5.quality

       The company has passed ISO9001-2008 international standard quality system certification.

       We look forward to contacting you, please give us a chance. I hope we can trust each other for mutual benefit and win-win results.

       Best wishes.

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       The following is our company's information:

       Jiangsu Longdai Environmental Protection Technology Co., Ltd.

       Phone: 0510-87837699

       Fax: 0510-87837599

       Chinese website: www.zgldhb.com

       Foreign language website: http://www.longdaiwwt.com/

       Email: longdaicompany@126.com

       Address: No. 20, Chengwen Road, Gaocheng Town, Yixing City

       Zip code: 214214