Fiber Disc Filter for Municipal Wastewater Treatment Plant Upgrade & Retrofit

Fiber Disc Filter for Municipal Wastewater Treatment Plant Upgrade & Retrofit

Brief Description

The fiber disc filter is advanced tertiary treatment equipment for municipal sewage, effectively reducing SS to meet the GB 18918-2002 Class 1-A discharge standard. It is suitable for wastewater plant retrofitting as a replacement for traditional sand filters, featuring continuous online backwash without shutdown.

Product Overview

This fiber disc filter (also known as a rotary disc fiber filter) uses modified fiber-woven filter cloth as the filter medium. It is widely used for advanced treatment of secondary effluent in municipal wastewater plants. Replacing conventional sand filtration, it improves effluent quality while reducing footprint and energy consumption. The complete set consists of a central rotary drum, filter discs, rotary sealing unit, suction backwash device, and automatic electric control system, enabling continuous filtration during online backwashing.

Product Parameters

Working Principle

Raw water flows into the tank through a steady-flow weir and contacts both sides of the fiber filter cloth on the submerged discs. Water passes through the <10μm fiber cloth under gravity; purified water flows into the central hollow rotary drum and discharges. As impurities accumulate on the filter cloth, the tank water level rises to the preset trigger value, activating the negative-pressure suction backwash system. The disc rotates slowly while the suction box removes sludge contaminants from the filter cloth surface. Backwashing runs simultaneously with filtration without system shutdown. Settled sludge at the tank bottom can be discharged via regular sludge suction.

Key Design & Performance Features

1.Stable tertiary filtration performance with modified twill-weave fiber cloth; resists impact, with no fiber shedding, cloth blockage, or damage during backwash.

2.Online continuous backwash — no need to stop the filtration process.

3.Filter cloth fiber height of 13–18mm ensures high flux and easy contaminant release, extending cloth service life.

4.Polyurethane wear-resistant sealing ring for the underwater rotary joint, convenient for replacement and maintenance.

5.Single fan-shaped filter screen can be disassembled independently for repair.

Applications

1.Municipal wastewater plant upgrading and retrofitting for Class 1-A effluent.

2.Deep polishing of secondary sedimentation tank effluent.

3.Urban sewage tertiary treatment projects.

Company Profile

WESUS is a leading manufacturer and total solution provider for advanced sewage and sludge treatment systems. Founded in Yixing, China in 2013, we offer reliable, cost-effective equipment and engineering services to global clients. Certified with ISO 9001, ISO 14001 and ISO 45001, we boast strong in-house R&D and manufacturing capabilities supported by a large production base, a professional technical team, patents and university cooperation. Our comprehensive product range includes screening, filtration, sludge dewatering, mixing, aeration and customized solutions. With end-to-end services from design to after-sales support and proven global project experience, we have earned wide recognition including national high-tech enterprise and 5-star after-sales certifications. Adhering to the philosophy of real innovation, excellence and win-win cooperation, WESUS is committed to providing smart, sustainable water treatment solutions for municipal and industrial clients worldwide.

FAQ

Q1: Are you a direct manufacturer? What certifications do you hold?
A: We are a direct manufacturer with our own production facilities and R&D team. We maintain full control over quality, cost, and delivery, and hold certifications including ISO 9001/14001 for our core products.

Q2: What types of collaboration models do you offer?
A: We provide flexible solutions:
- Equipment Supply: Standalone or packaged systems.
- Turnkey Solutions (EPC): Design, procurement, construction, and commissioning.
- Technical Cooperation: Process upgrades, operational maintenance support, and technical consulting.

Q3: How is after-sales service and support ensured?
A: We provide full lifecycle support:
- Warranty: 12–24 months on core equipment.
- Response: 7x24 remote support with fast on-site assistance when needed.
- Spare Parts: Genuine parts are stocked for long-term supply security.
- Maintenance: Annual Maintenance Contracts (AMC) are available to ensure long-term system efficiency.

Q4: What is your typical project execution process?
A: Our standardized workflow ensures efficiency and transparency:
1. Requirement Analysis → 2. Proposal & Quotation → 3. Design Finalization → 4. Production & Factory Testing → 5. Shipping & Installation → 6. Commissioning & Training → 7. After-sales Service.
Customer involvement is encouraged at key milestones.

Q5: Can you provide references or case studies?
A: We have extensive global project experience across municipal and various industrial sectors. We can provide detailed, anonymized case studies and client references upon request.

Q6: What are your payment terms and delivery lead times?
A: - Payment: We accept T/T and L/C, with standard industry progress payment terms.
- Lead Time: Standard equipment: 4–8 weeks. Large custom projects: 12–20 weeks.
A clear production schedule is provided upon contract signing.

Q7: How do you serve international clients?
A: We are experienced in international projects, arranging complete logistics (FOB, CIF, DDP, etc.) and providing full customs documentation. Our designs pre-consider compliance requirements in target markets.

Q8: Can you upgrade or retrofit existing systems?
A: Yes. We specialize in evaluating existing facilities and providing customized retrofit and expansion solutions to enhance performance and capacity with minimal investment and downtime.

Q9: How can we start a consultation?
A: Please contact our Sales Engineering team. To facilitate an efficient discussion, please have your treatment requirements, water quality data, and site information ready. We will provide a preliminary proposal and professional advice.