China-Made Compact Water Purification Equipment for Iron & Manganese Ion Filtration
Brief Introduction
Longdai Co., Ltd., headquartered in Yixing—a modern and scenic city in Jiangsu Province, China—is a specialized supplier of processing equipment for the petrochemical sector. The company focuses on environmental solutions and offers integrated services including independent R&D, design, engineering contracting, manufacturing of environmental protection equipment, and supply of related materials.
Technical Parameters
Applicable inlet water turbidity: ≤3000 mg/L
Operating water temperature: Standard conditions
Outlet turbidity after purification: ≤5 mg/L
Surface loading rate of sedimentation zone: 7–8 m³/h·m²
Filter backwash intensity: 14–16 L/m²·s
Backwash duration: 4–6 minutes
Total retention time: 40–45 minutes
Inlet water pressure: 0.6 MPa
Product Overview
The iron and manganese removal filtration system utilizes a filter medium crafted from specially processed and modified natural minerals. This gray-green material has a particle size of 0.5–2.0 mm and a bulk density of 0.9. It demonstrates high sensitivity and strong adsorption affinity toward iron and manganese ions in water, effectively trapping them within its porous structure through adsorption and ion exchange.
Once saturated, the filter medium can be regenerated by immersion in a sodium hydroxide solution, restoring its original performance. With reliable operation and strict adherence to regeneration schedules, the system consistently meets iron and manganese reduction targets. The filter material boasts a service life of up to 50 years, requiring only a 2% annual replenishment to compensate for losses. It does not require full replacement, avoids hardening or fatigue issues, and remains effective across a wide pH range. The system operates at low cost, produces clear effluent, and aids in reducing various chemical, physical, toxicological, and heavy metal indicators.
Working Principle
Groundwater containing iron and manganese is aerated or mixed with an oxidant, initiating the oxidation of dissolved iron (Fe) and manganese (Mn) ions. As water passes through the manganese sand filter layer, contact oxidation occurs facilitated by both biochemical and physical interactions on the filter surface. This process effectively precipitates, retains, and adsorbs iron and manganese ions.
Notably, in treating mildly contaminated manganese-containing groundwater, iron bacteria not only contribute to iron and manganese removal but also metabolize ammonia nitrogen, supported by synergistic bacterial activity. This results in simultaneous removal of ammonia nitrogen alongside iron and manganese.
Applications
Food and beverage production
Washing, dyeing, and processing in textile and paper industries
Manufacturing of chemical products including rayon, film dyes, and specialty papers
Industries such as fiber processing, dyeing, photographic film, starch production, and brewing
Removal of iron-based corrosive impurities in steam condensate systems
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.
FAQ:
Q: Are You Trading Company Or Manufacture?
A: We Are Both Manufacture And Trading Company. We Have Over 30 Years' Professional Experience As a Waste Water Treatment Equipment Manufacturer And Engineering Service Enterprise.
Q : What Are Your Main Products?
A:Keywords :Sludge Dewatering Machine Equipment, Screw Type Sludge Dewatering Press Sludge Screw Press, Dewatering Sludge Machine Screw Press ,Sewage Treatment Equipment ,Sludge Treatment Plant,Screw Press Sludge Dewatering ,Dewatering Sludge,Dewatering Machine For Sludge, Dewatering Sludge Machine Screw Press, Rotary Drum Bar Screens, Equipment DAF, DAF Price ,Dissolved Air Flotation System Price, Sludge Shaftless Screw Conveyor,Chemical Dosing Device ,MBBR Price,MBBR Media,Disc Diffuser, Polymer Preparation Chemical Dosing System, and other customized machines.
Q: How Can I Find The Suitable Model?
A: Please Provide Flow Rate, Solids Content And Sludge Type, or directly contact us by the clicking the “contact” icon. We Can Assist You In Model Selection.
Q: Where Is Your Factory Located?
A: Yixing City, We are in the famous city of environmental protection equipment ,professional for Sludge screw press dewatering Machine ,Which Is Very Close To Shanghai With Only Less Than 3 Hours' Driving. Welcome for your visiting.
Q: Do You Provide OEM Service?
A: Yes. We Can Do The Customized Design According To Your Different Request for sludge Dewatering.
Q: How About The Production Capacity Of Your Company?
A: Our Factory Covers Area Over 15,000m² And Produces Machines 2000 Sets Per Year.
Q: How Could We Trust You And Your Company? Is This Your First Time Transaction?
A: A: Our Company Has More Than 20 Years Professional Experience. We Cooperate Over 800 Customers in China And Overseas. We Export Nearly 60 Countries All Over The World. And We Have More Than 60+Patents, CE,ISO 9001,SGS Certificates.
Q: Do You Offer After-Sales Service?
A: Video Technical Support, Online Support,Spare Parts, Field Maintenance Repair Service
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.
