Industrial Carbon Steel Sand Filtration System

Industrial Wastewater Treatment Sand Filtration System with Automatic Backwashing

A Message to Our Customers:

While we focus on manufacturing a comprehensive range of wastewater treatment equipment rather than perfecting promotional images, we take pride in delivering reliable and high-performance filtration solutions. Should you have any technical or commercial inquiries, please feel free to contact us—we are here to assist.

Thank you.

Applications

1. Industrial Water Filtration
   Used in systems with specific water quality requirements, such as oxygen lance water in steel mills, boiler feedwater, and heat exchanger supply water. Effectively removes impurities to prevent nozzle and pipeline clogging.

2. Industrial Circulating Water Filtration
   Maintains water quality within recirculating systems to improve efficiency and equipment service life.

3. Raw Water Treatment
   Suitable for treating surface water from rivers, lakes, reservoirs, seawater, wells, and municipal tap water. Effectively removes sand, suspended solids, algae, and organic matter to produce clean water for urban and industrial use.

4. Agricultural Irrigation
   Ideal for high-flow, high-impurity water sources such as farmland irrigation, park landscaping, and golf course maintenance.

Structure & Working Principle

The system utilizes a specialized filtration media designed for high dirt interception and retention. When accumulated impurities begin to affect performance, an integrated automatic backwashing mechanism is activated.

During backwashing, reverse water flow fluidizes the sand bed, dislodging trapped particles and flushing them out of the system. This process effectively removes sediments and suspended matter, prevents media hardening, and restores the filtration capacity—ensuring consistent and efficient operation with minimal manual intervention.

Parameters

Main Features

1. Water Quality Parameters:

Inflow turbidity＜50NTU, Outflow turbidity＜10NTU,

2. Work Condition Parameters:

(1)Working Temperature: 5-60℃(Temperature is customized)

(2)Working Pressure: ≤0.6MPa

(3)Differential Pressure(In and Out): 0.05Mpa

3. Operating Parameter:

(1)Working Type: Pressure Type

(2)Operating Type: water flows from top to bottom

(3)Filter Speed: 40m/h (Max to 60m/h)

(4)Backwashing water consumption: ＜1%

(5)Backwashing Time: 2-3min.

4. Body Material: Stainless Steel, Carbon Steel Rubber Liner or Epoxy Coated

5. Operating Method: Manual, Electric, Pneumatic

Packing and Delivery

1. Waterproof packing with the international export standard by 20ft, 40ft, 40hp container. Equipment Fittings, Electric Motor and Power Cabinet will be packed in Wooden Case or Iron Box. Other Equipment will be packed by Color-Stripes Plastic Cloth.
2. The whole plant machinery size are large as normal, so we will use Waterproof cloth to pack all of them. The motor, gear box or other easily damaged parts, we will put them into box. We have a professional shipping department, they will try their best to save your container quantity.

       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