Wastewater Pretreatment Screen for MBR and Industrial Applications

Wastewater Pretreatment Screen for MBR and Industrial Applications

Brief Description

The NJL perforated plate screen provides mechanical solids separation for wastewater pretreatment systems. It is suitable for municipal and industrial applications where removing screenings before downstream treatment can help reduce the solids load on subsequent process equipment.

Product Overview

Effective pretreatment is an important consideration in wastewater treatment system design, especially when the process includes membrane bioreactor (MBR) technology or other downstream equipment that may be affected by incoming solid debris.

The NJL Internally Fed Perforated Plate Screen uses moving perforated plates to capture and remove solid materials from wastewater. Its internal inlet directs wastewater toward the screening plates on both sides, while the chain-driven mechanism carries retained debris to the upper discharge area.

With a vertical installation arrangement and an integrated flushing system, the equipment can be evaluated for new wastewater treatment facilities and selected screening system upgrades. Final suitability depends on wastewater characteristics, required screening performance, and site conditions.

Product Parameters

Working Principle

Wastewater enters through the lower inlet and flows through the perforated plates on both sides of the equipment. Solid debris is retained on the plate surfaces, while screened water passes into the downstream channel.

A motor-driven chain mechanism moves the screening plates upward, transporting retained solids to the upper discharge section. The flushing system removes the collected screenings, which are directed into the collection trough and discharged from the machine.

This mechanical screening process helps remove incoming solid debris before wastewater proceeds to subsequent treatment stages.

Key Design & Performance Features

1. Pretreatment Screening

Helps reduce the amount of solid debris entering downstream treatment processes.

2. MBR System Application Potential

Can be evaluated for use upstream of membrane treatment, subject to the required screening specifications.

3. Continuous Mechanical Removal

Moves captured screenings toward the discharge section during operation.

4. Compact Vertical Arrangement

Supports installation where floor space is limited, subject to channel dimensions.

5. Integrated Screenings Discharge

Combines mechanical lifting with flushing-assisted removal.

6. Maintenance Access

Insert-mounted plates facilitate replacement and servicing.

7. Adaptable Project Design

Equipment dimensions and configuration can be assessed against flow requirements and existing civil structures.

Applications

1. Municipal wastewater pretreatment

2. Wastewater systems incorporating MBR technology

3. Industrial wastewater pretreatment

4. Food processing wastewater treatment

5. Slaughterhouse wastewater treatment

6. Paper industry wastewater treatment

7. Screening system renovation and replacement 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 possess 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.