Integrated Aerated Grit Chamber | High-Efficiency Grit Removal Complete Set for Wastewater Pretreatment

Integrated Aerated Grit Chamber | High-Efficiency Grit Removal Complete Set for Wastewater Pretreatment

Brief Description

Modular factory-prefabricated aerated grit chamber integrating rotary drum screening, aeration scrubbing, hydraulic cyclone, gravity sedimentation and grit-water separation. Achieves ≥95% removal efficiency for grit particles over 0.2 mm. Ideal for municipal wastewater plants and water pretreatment, cuts site construction work and supports automatic unattended operation.

Product Overview

Traditional concrete-built grit chambers suffer from large footprint, low fine-grit capture rate, long construction cycle and high maintenance workload. Our integrated aerated grit chamber shifts from on-site civil construction to factory prefabricated equipment manufacturing. All core assemblies are pre-assembled and tested in-house before delivery. This all-in-one pretreatment unit solves typical pain points of conventional grit tanks. It reduces land occupation by more than 60%, delivers stable grit-removal performance, and fits new-build plants as well as existing facility upgrading. Without chemical dosing, physical-based separation protects downstream pumps, pipes and biochemical processes from abrasion and clogging.

Product Parameters

Working Principle

The unit completes wastewater pretreatment via five sequential physical procedures without chemical agents:

1.Pretreatment screen separation: Rotary drum screen intercepts large debris, fibrous substances and floating pollutants to protect subsequent processing sections.

2.Aeration scrubbing: Roots blower drives tubular aeration system to generate turbulent flow. Adhesive organic matter attached on grit surface is stripped off to lower organic content in settled grit.

3.Hydraulic cyclone separation: Tangential inflow plus aeration-driven turbulence builds stable spiral vortex field. High-density grit particles gain centrifugal force and drift toward tank wall for pre-concentration.

4.Gravity sedimentation: Grit particles settle under gravity for preliminary solid-liquid enrichment.

5.Mechanical grit-water separation: Bottom screw conveyor collects grit-water mixture; inclined lifting screw drains water to get dewatered grit. Filtrate flows back to upstream process for recycling. Dewatered grit can be transported out for disposal or resource reuse.

Key Design & Performance Features

1.High grit-removal performance: ≥95% removal for grit >0.2 mm; organic content in settled grit below 10%, reduces load for downstream biochemical system.

2.Modular factory prefabrication: Core components assembled and tested in workshop; minimise on-site civil work.

3.Physical-only treatment: No chemical additive, environment-friendly pretreatment solution.

4.Complete set integration: Combines screening, aeration, sedimentation, grit conveying and intelligent control within one unit.

5.Reliable material options: Carbon steel anti-corrosion or stainless steel options, long service life over 20 years.

Applications

1.Municipal wastewater treatment plants (new construction & capacity-increase retrofitting).

2.Industrial park wastewater stations.

3.Sponge city initial rainwater pretreatment.

4.Black-odour water emergency treatment.

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.