Large Capacity Sewage Treatment Plant (500 KLD to 1000 KLD & Above)
Engineered by VEPL for Smart Cities, Industries, and Institutions
VEPL’s Large Capacity Sewage Treatment Plant (STP) is a custom-engineered, high-efficiency solution for treating and recycling large volumes of domestic or industrial wastewater — ranging from 500 KLD to campuses, these STPs are designed with cutting-edge technologies including:
- Sequential Batch Reactor (SBR) / Moving Bed Biofilm Reactor (MBBR)
- Tertiary Treatment with Ultra-Filtration (UF), UV, and Ozonation
- Sludge Handling with Filter Press and Drying Beds
- Advanced SCADA/PLC-based automation (Optional)
Key System Components
Treatment Stage | Description |
Preliminary | Screening chamber, oil & grease trap, grit removal |
Equalization Tank | Stabilizes flow and load variations |
Biological Treatment | MBBR / SBR / ASP process using EM solution or bio-culture |
Secondary Clarifier | Settles biological sludge |
Tertiary Treatment | Sand filter + carbon filter + UF membrane |
Disinfection | UV system + Optional Ozonator |
Sludge Management | Sludge drying beds + filter press for dewatering |
Reuse Distribution | Treated water storage tank + pumps for reuse (flushing, irrigation, etc.) |
Backup | Standby pumps, blowers, and DG integration for 24×7 operation |
Technical Specifications
Parameter | Specification |
Capacity | 500 KLD to 2000 KLD+ (Modular design for higher capacity) |
Treated Water Use | Flushing, landscaping, HVAC makeup, cooling towers, construction |
Technology Options | MBBR, SBR, or Conventional ASP (depending on client/site) |
Power Supply | 3-phase, 50 Hz with energy-efficient motors |
Automation | SCADA/PLC integration available |
Structure Type | RCC, MS with epoxy coating, or hybrid (based on site) |
Estimated Power Consumption (Approximate)
Plant Size | Total Power Load | Equipment Breakdown |
500 KLD | 40–50 HP | Blowers: 15–20 HP, Pumps: 15 HP, UV/Ozone/UF: 10–15 HP |
750 KLD | 65–75 HP | Blowers: 25 HP, Pumps: 20 HP, UF/Disinfection: 20 HP |
1000 KLD | 85–100 HP | Blowers: 30 HP, Pumps: 30 HP, UF/UV/Ozone: 25–30 HP |
Standby units included for critical components (pumps, blowers, etc.)
Treatment Process & Parameters
- Primary Treatment
(Screening, Oil & Grease Removal, Equalization)
Parameter | Inlet (Raw Sewage) | Outlet (After Primary) |
pH | 6.5 – 8.5 | 6.5 – 8.5 |
BOD | 200 – 350 mg/L | 150 – 200 mg/L |
COD | 400 – 600 mg/L | 250 – 400 mg/L |
TSS | 150 – 300 mg/L | 100 – 150 mg/L |
Oil & Grease | 20 – 50 mg/L | < 20 mg/L |
- Secondary Treatment
(Biological Treatment – MBBR/FAB/SBR + Clarifier)
Parameter | Inlet (From Primary) | Outlet (After Secondary) |
BOD | 150 – 200 mg/L | < 30 mg/L |
COD | 250 – 400 mg/L | < 100 mg/L |
TSS | 100 – 150 mg/L | < 30 mg/L |
Ammonia (NH₄) | 15 – 30 mg/L | < 10 mg/L |
Odor | Present | Mild/Neutralized |
- Tertiary Treatment
(Sand Filter + Activated Carbon Filter + UV/Chlorination)
Parameter | Inlet (From Secondary) | Outlet (After Tertiary) |
BOD | < 30 mg/L | < 10 mg/L |
COD | < 100 mg/L | < 30 mg/L |
TSS | < 30 mg/L | < 5 mg/L |
Pathogens | Present | 90–99% Removed |
Color & Odor | Slight / Off | Clear & Odor-Free |
- After Ultrafiltration (UF) – Optional Final Polishing
Parameter | Inlet (From Tertiary) | Outlet (After UF) |
BOD | < 10 mg/L | < 5 mg/L |
TSS | < 5 mg/L | < 1 mg/L |
Turbidity | < 5 NTU | < 1 NTU |
Pathogen Removal | ~99% | 99.99% |
Water Quality | Non-potable reuse | Reuse for gardening, flushing, cooling ✅ |
Biological Treatment Media
- Type: High-surface-area MBBR media or batch-activated sludge
- Inoculation: EM Solution / Commercial Bacterial Culture
- Advantages: Faster start-up, stable performance under load fluctuations
- Sludge Handling: Sludge dewatering through filter press and disposal as per PCB norms
Key Advantages
- Designed for 100% Reuse – Complies with Zero Liquid Discharge (ZLD) policies
- Automation-Ready – SCADA/PLC-enabled for remote monitoring
- Reliable Operation – Engineered for continuous duty with built-in redundancy
- Regulatory Compliant – CPCB, NGT, and state PCB approved discharge norms
- Long Lifespan – Heavy-duty construction for 20+ years of operation
- Expandable – Modular configuration for phased growth
Applications
- Smart Cities & Municipal Townships
- IT Parks, SEZs, & Industrial Clusters
- Airports, Rail Terminals, & Stadiums
- Mega Housing Projects & Mixed-Use Developments
- Universities, Defense Zones, & Hospitals
- Construction Camps & Infrastructure Projects
Certifications & Standards
- CPCB & SPCB Compliant
- ISO 9001:2015 Certified System Design
- RERA, NGT, and MoEF Guidelines Compliance
- Green Building Norms & IGBC Criteria Support