Water Treatment
Shivam Engineering & Fabrication provides high-efficiency aeration blowers, odor control fans and ventilation systems for Sewage Treatment Plants (STP), Effluent Treatment Plants (ETP), Water Purification and desalination projects.
Perfect Solutions for
Water Treatment Plants
Need Aeration Blowers for Water Treatment Plant?
Energy efficient and low maintenance blowers designed specifically for STP, ETP and WTP applications.
Centrifugal Blowers for Water Treatment
Energy-efficient, low-noise centrifugal blowers engineered specifically for water and wastewater treatment plants – aeration, process air, and filter backwash applications.
When water treatment plant operators and consultants across India need reliable, energy-efficient, and low-noise aeration solutions for their biological treatment processes, they turn to Shivam Engineering & Fabrication. As a leading centrifugal blower manufacturer for water and wastewater treatment industry, we have supplied hundreds of units to municipal sewage treatment plants (STPs), industrial effluent treatment plants (ETPs), and water treatment plants (WTPs) across the country. Our centrifugal aeration blowers are engineered for energy efficiency, low noise, oil-free operation, and continuous 24/7 reliability – perfectly suited for demanding water treatment applications.
Why Water Treatment Plants Need Specialized Aeration Blowers
Biological wastewater treatment requires consistent, reliable, and efficient oxygen transfer for microorganisms to break down organic pollutants. Our specially designed centrifugal blowers feature:
- Energy-Efficient Operation – Backward-curved impellers reduce power consumption (15-30% energy savings).
- Low Noise Levels – Precision-balanced impellers and acoustic enclosures available.
- Oil-Free Air Delivery – No oil contamination in biological treatment processes.
- Heavy-Duty Construction – For continuous 24/7 operation.
- Low Maintenance – Simplified design with fewer wearing parts.
- VFD Ready – For variable flow control and additional energy savings.
Key Applications of Centrifugal Blowers in Water Treatment
Aeration in Activated Sludge Process (ASP)
Provides oxygen to aerobic bacteria for breaking down organic pollutants in municipal and industrial wastewater. The most common application, requiring continuous 24/7 operation.
Diffused Aeration Systems
Air supply to fine bubble or coarse bubble diffusers installed at the bottom of aeration tanks for maximum oxygen transfer efficiency.
Membrane Bioreactor (MBR) Scouring Air
Provides scouring/agitation air to membrane modules in MBR systems to prevent fouling and maintain membrane permeability. Requires consistent, moderate pressure air.
Aerobic Sludge Digestion
Air supply for aerobic digesters to stabilize and reduce sludge volume.
Filter Backwash Air
Air scour for backwashing rapid sand filters and dual-media filters in water treatment plants (WTPs).
Grit Chamber Aeration
Air supply to grit chambers in preliminary treatment to prevent organic settling.
Equalization Tank Mixing
Air mixing to equalize flow and composition in wastewater treatment plants.
Process Air for Other Biological Systems
Air supply for biological aerated filters (BAF), moving bed biofilm reactors (MBBR), sequencing batch reactors (SBR), and oxidation ditches.
Centrifugal vs. Positive Displacement Blowers for Aeration
| Parameter | Centrifugal Blower | Positive Displacement (PD) Blower |
|---|---|---|
| Best Efficiency Range | >1,000-1,500 CFM | <1,000 CFM |
| Energy Efficiency | Higher for large flows | Higher for small flows |
| Noise Level | Lower (75-85 dB) | Higher (85-95+ dB) |
| Oil-Free Air | Yes (standard) | Yes (with oil-free option) |
| Maintenance | Lower | Higher (timing gears, bearings) |
| VFD Compatibility | Excellent | Limited |
| Best Application | Large municipal STPs, industrial ETPs | Small package plants, high pressure |
Material & Design Options for Water Treatment Applications
- Heavy-Duty Mild Steel (MS) with Epoxy/Powder Coating – Standard construction for most water treatment applications. Corrosion-resistant coating for outdoor/indoor installation.
- Stainless Steel SS304 – For corrosive environments (coastal installations, high chloride/saltwater, chemical ETPs).
- Cast Aluminum – For lightweight applications and spark-resistant requirements.
- Acoustic Enclosures – For noise-sensitive installations (residential areas, hospitals, hotels). Reduces noise to 75 dB or lower.
- VFD Panels – For variable flow control based on dissolved oxygen (DO) sensors for maximum energy savings (up to 30-40%).
- Air Filtration – Inlet filters to protect blower from dust and debris.
Technical Specifications
- Air Flow Capacity: 200 CFM to 20,000+ CFM
- Static Pressure:
- Diffused Aeration: 2,000-8,000 mmWC (0.2-0.8 bar)
- MBR Scouring: 5,000-10,000 mmWC (0.5-1.0 bar)
- Filter Backwash: 4,000-10,000 mmWC (0.4-1.0 bar)
- Power Rating: 5 HP to 300+ HP
- Impeller Types: Backward curved (high efficiency), radial tip
- Drive Types: Direct coupled, belt driven, or VFD
- Mounting: Base frame mounted, skid-mounted with acoustic enclosure
- Motor Options: Standard, energy-efficient IE3/IE4, VFD compatible
- Special Features: Acoustic enclosures, inlet filters, discharge silencers, vibration isolators
Quality Assurance & Testing
Every centrifugal aeration blower leaving our Ahmedabad factory undergoes:
- Dynamic balancing of impeller (ISO 1940 G-6.3 grade, G-4.0 for high-speed units)
- Performance testing for airflow, pressure, and power consumption
- Vibration and noise level measurement (with/without enclosure)
- Coating thickness verification (for epoxy/powder-coated models)
- Run test (minimum 2 hours continuous operation)
- Quality checks as per ISO 9001:2015 standards
Aeration Calculation Guide
| Application | Typical SOTR (kg O₂/h/kW) | Air Flow Required (m³ air/kg O₂) |
|---|---|---|
| Fine Bubble Diffuser | 1.5-2.5 | 15-25 |
| Coarse Bubble Diffuser | 1.0-1.8 | 20-35 |
| MBR Scouring | N/A | 5-10 m³/h per m² membrane |
| Aerobic Digester | 0.8-1.5 | 25-40 |
Serving Water Treatment Plants Across India
We supply centrifugal aeration blowers to municipal STPs, industrial ETPs, and water treatment plants in:
- Municipal Sewage Treatment Plants (STPs): Delhi-NCR, Mumbai, Chennai, Kolkata, Bengaluru, Hyderabad, Ahmedabad, Pune, Surat, Jaipur, Lucknow, Kanpur, Nagpur, Indore, Bhopal, Visakhapatnam, Patna, Vadodara
- Industrial ETPs (Common & Captive):
- Gujarat: Ahmedabad, Ankleshwar, Vapi, Vadodara, Surat (textile, chemical, pharma)
- Maharashtra: Mumbai, Pune, Nashik (pharma, chemical, automotive)
- Tamil Nadu: Tiruppur, Coimbatore (textile), Chennai (pharma)
- Uttar Pradesh: Kanpur (leather), Noida (pharma, general)
- Haryana: Faridabad, Gurugram (general manufacturing)
- Telangana: Hyderabad (pharma bulk drugs)
- Punjab: Ludhiana (textile, general)
- Karnataka: Bengaluru (electronics, pharma)
- Water Treatment Plants (WTPs): Across all states for municipal drinking water supply
- Zero Liquid Discharge (ZLD) Plants: Air supply for multiple effect evaporators (MEE) and drying systems
- Sewage Treatment Plants (STPs) for Residential/Commercial Complexes: Hotels, hospitals, shopping malls, housing societies, SEZs, IT parks
Frequently Asked Questions – Centrifugal Blowers for Water Treatment
1. How do I size a centrifugal blower for my STP aeration requirement?
Aeration sizing requires oxygen demand calculation based on influent BOD/COD load. Typical municipal sewage requires 1.5-2.5 kg O₂ per kg BOD removed. Air flow required is approximately 15-25 m³ air per kg O₂. Our team can calculate exact requirements based on your plant parameters.
2. What is the typical pressure requirement for diffused aeration?
Typical pressure requirement = Submergence depth of diffusers (m) × 0.1 + line losses (0.2-0.5 bar). For 4-5 meter depth, total pressure is approximately 0.6-0.8 bar (6,000-8,000 mmWC).
3. Are your blowers suitable for MBR (Membrane Bioreactor) scouring air?
Yes. Our centrifugal blowers are widely used for MBR scouring air applications. They provide the required moderate pressure (0.5-1.0 bar) and continuous oil-free air essential for membrane cleaning and fouling prevention.
4. Do you provide acoustic enclosures for noise-sensitive installations?
Absolutely. We offer weatherproof acoustic enclosures with noise reduction to 75 dB or lower, ideal for STPs located near residential areas, hotels, hospitals, and IT parks.
5. How can I get a quote for a centrifugal aeration blower for my water treatment plant?
Call Mr. Nitin Panchal at +91-90168 77642 or email shivamenggfabricators@gmail.com. Provide plant capacity (MLD or KLD), application (STP/ETP/MBR/WTP), basin dimensions, or required CFM and pressure – we'll respond within 24 hours.
Get Your Centrifugal Blower from Trusted Manufacturers
As one of the leading centrifugal blower manufacturers for water and wastewater treatment, Shivam Engineering & Fabrication provides:
- Free technical consultation and aeration calculation assistance
- Customised designs for STP, ETP, MBR, and WTP applications
- Energy-efficient backward-curved impellers (15-30% power savings)
- Low-noise designs with acoustic enclosure options
- Oil-free air delivery – no contamination risk for biological treatment
- VFD-ready blowers for variable flow control and additional energy savings
- Heavy-duty construction for continuous 24/7 operation
- Corrosion-resistant coatings for outdoor installation
- Competitive lead times and pan-India delivery
- After‑sales support, on-site commissioning, and annual maintenance contracts (AMC)
Contact Mr. Nitin Panchal at +91-90168 77642 or email shivamenggfabricators@gmail.com. Let us engineer the perfect centrifugal aeration blower for your water treatment process.
* All specifications and performance data are based on standard operating conditions. Custom requirements are engineered per client process parameters.