High Rate Solid Contact Clarifiers
Overview
A High Rate Solid Contact Clarifier (HRSCC) is an advanced clarification system that combines coagulation, flocculation, sludge recirculation, and clarification within a single unit. The process utilizes recycled sludge as a contact medium to accelerate floc formation and improve settling efficiency, resulting in superior clarification performance and reduced treatment time.
HRSCC systems are widely used in Water Treatment Plants (WTP), Industrial Water Treatment, Surface Water Treatment, and Process Water Applications where high clarification efficiency and compact design are required.
Treatment Process Flow
Raw Water → Coagulant Dosing → Flash Mixing → Solid Contact Zone → Flocculation Zone → Clarification Zone → Clear Water Collection → Sludge Recirculation & Blowdown
Working Principle
The raw water enters the central mixing zone where coagulants are added. Previously formed sludge is continuously recirculated, promoting rapid floc formation. The heavier flocs settle in the clarification zone, while clarified water overflows through peripheral launders. A portion of settled sludge is recirculated and excess sludge is periodically discharged.
Technical Specifications
Parameter | Specification |
Capacity Range | 5 m³/hr to 10,000+ m³/hr |
Technology | Solids Contact Clarification |
Operation | Continuous |
Tank Type | Circular |
Construction | RCC / MS / SS |
Sludge Recirculation | Mechanical |
Clarification Efficiency | High Rate |
Chemical Dosing | Alum / PAC / Polymer |
Main Components
Equipment | Function |
Feed Well | Raw water distribution |
Flash Mixer | Rapid chemical mixing |
Solid Contact Zone | Sludge recirculation and contact |
Flocculation Zone | Floc formation |
Clarification Zone | Settling of suspended solids |
Sludge Scraper Mechanism | Sludge collection |
Sludge Recirculation System | Reuse of active sludge |
Overflow Launder | Collection of clarified water |
Drive Unit | Mechanism rotation |
Available MOC (Material of Construction)
Component | MOC Options |
Tank | RCC / MS / SS304 / SS316 |
Bridge Structure | MS Painted / HDG / SS304 |
Scraper Arms | MS Epoxy Coated / SS304 / SS316 |
Centre Column | MS / SS304 |
Launder System | FRP / SS304 |
Fasteners | SS304 / SS316 |
Performance
Parameter | Typical Value |
Turbidity Removal | Up to 95–99% |
Suspended Solids Removal | Up to 95% |
Chemical Consumption | Reduced |
Clarified Water Quality | Excellent |
Sludge Settling Efficiency | High |
Applications
- Raw Water Treatment Plants (WTP)
- River Water Treatment Systems
- Dam & Reservoir Water Treatment
- Industrial Water Treatment Plants
- Cooling Tower Makeup Water Treatment
- Power Plants
- Steel & Metal Industries
- Chemical Industries
- Municipal Water Supply Projects
- Process Water Treatment Systems
Benefits
- Superior Turbidity Removal
- Faster Floc Formation
- Reduced Retention Time
- Lower Chemical Consumption
- High Hydraulic Loading Capacity
- Reduced Plant Footprint
- Reliable Continuous Operation
- Cost-Effective Water Treatment
Vikas Engineering Solution
- Scope of Supply
- Process Design & Engineering
- HRSCC Mechanism
- Bridge Structure
- Scraper & Sludge Collection System
- Sludge Recirculation Arrangement
- Drive Unit & Gearbox
- Installation & Commissioning
- AMC & Technical Support
Typical Industries Served
- Municipal Water Supply Projects
- Power Plants
- Steel & Metal Industries
- Chemical Industries
- Textile Industries
- Food & Beverage Industries
- Infrastructure Projects
- Industrial Water Treatment Facilities
Why Choose Vikas Engineering?
- Customized Design for Any Capacity
- Heavy-Duty Mechanical Construction
- High Clarification Efficiency
- Reduced Chemical & Operating Costs
- Robust and Reliable Operation
- Turnkey Water Treatment Solutions
- Reliable After-Sales Service
Available Capacity Range: 5 m³/hr to 10,000+ m³/hr
Suitable for Municipal, Industrial, Commercial, and Infrastructure Water Treatment Projects.
Vikas Engineering manufactures High Rate Solid Contact Clarifiers (HRSCC) for efficient turbidity removal, suspended solids separation, and high-capacity water clarification applications, delivering reliable performance, compact design, and cost-effective operation.