Compact Integrated Aerated Grit Chamber | Space-Saving Wastewater Pretreatment Unit for Limited-Site Retrofit

Compact Integrated Aerated Grit Chamber | Space-Saving Wastewater Pretreatment Unit for Limited-Site Retrofit

Brief Description

Space-efficient modular aerated grit removal equipment for sites with limited land area. Occupies only 1/3-1/2 footprint of conventional concrete grit chamber. Factory pre-built for municipal plant retrofitting, delivers ≥95% grit removal for particles above 0.2 mm with less on-site excavation work.

Product Overview

Many wastewater retrofitting projects face severe land-restriction challenges; traditional concrete aerated grit chambers demand large excavation and occupy massive ground space. This compact integrated aerated grit chamber adopts highly compact steel box modular structure, cutting land usage by over 60% compared to civil-work grit tanks. It can be installed above-ground or partially buried. All key modules are pre-tested inside factory. Instead of lengthy concrete pouring work, projects mainly need foundation preparation plus hoisting and piping connection. It keeps full functions including screening, aerated scrubbing, cyclone settling and automatic grit discharge, and is a practical upgrade choice for old-plant renovation in urban zones.

Product Parameters

Working Principle

Relying purely on multi-step physical separation without chemical dosing:

1.Rotary drum screen removes large floating debris and fibres to prevent downstream clogging.

2.Uniform aeration creates tank-wide turbulence to strip organic substances sticking to grit surface.

3.Tangential water inflow forms hydraulic cyclone field, accelerates grit particle gathering toward tank wall.

4.Gravity sedimentation realises primary grit enrichment.

5.Screw conveying system collects and dewaters settled grit; separated liquid returns back to upstream process. Compact internal flow-path design eliminates dead zones while maintaining designed hydraulic retention time for stable separation performance.

Key Design & Performance Features

1.Ultra-compact layout: footprint equals 1/3-1/2 of traditional concrete aerated grit chamber; supports above-ground or part-buried installation.

2.Minimised civil-engineering: Factory prefabrication greatly reduces excavation and cast-in-situ concrete work for retrofitting projects.

3.Zero flow dead-zone: Optimised cyclone flow path prevents sediment accumulation inside the tank.

4.Stable grit-removal effect: ≥95% removal efficiency for grit >0.2 mm, low organic content in settled grit.

5.Flexible layout adaptation: Rectangular steel cabinet structure fits narrow or irregular plant-site space.

Applications

1.Municipal wastewater plant retrofitting in land-limited urban areas.

2.Old sewage treatment facility upgrade.

3.Urban industrial park with limited available land.

4.Sponge-city rainwater pretreatment under space constraints.

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.