Sewage Treatment Plant (STP) for Residential Apartments
Smart, Compact & Efficient Sewage Treatment for Housing Societies
VEPL’s Residential STP systems are compact, reliable, and low-maintenance solutions designed to meet the wastewater treatment needs of residential buildings, townships, gated communities, and apartments. Built to comply with CPCB/SPCB norms, our plants offer efficient treatment while promoting treated water reuse for non-potable applications such as flushing, gardening, and car washing.
Product Overview
VEPL STPs use proven biological treatment technologies such as MBBR, SBR, or ASP, based on project requirements, land availability, and discharge quality standards. The system ensures minimum odor, low sludge, and quiet operation, making it ideal for integration into residential environments.
Technical Specifications
Parameter | Specification |
Capacity Range | 5 KLD to 500 KLD (modular) |
Technology Used | MBBR / SBR / ASP |
Construction Type | RCC / MSEP / FRP (based on site conditions) |
Aeration System | Fine Bubble Diffused Aeration |
Automation | Semi / Fully Automatic (PLC optional) |
Power Requirement | 1 – 15 HP (based on plant size) |
Control System | Manual / PLC-based (customizable) |
Sludge Handling | Sludge Drying Beds / Filter Press |
Tertiary Unit | PSF + ACF + UV/Chlorination |
Optional Add-on | Ultrafiltration (UF) for reuse |
Compliance | CPCB / MoEF / Local Authority Guidelines |
Inlet & Outlet Water Quality Parameters
Primary Treatment (Bar Screen + Grit Chamber + Equalization)
Parameter | Inlet Range | Outlet Range |
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 | 10 – 30 mg/L | < 20 mg/L |
Secondary Treatment (Biological Reactor + Clarifier)
Parameter | Inlet | Outlet |
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 | 15 – 30 mg/L | < 5–10 mg/L |
Tertiary Treatment (PSF + ACF + Disinfection)
Parameter | Inlet | Outlet |
BOD | < 30 mg/L | < 10 mg/L |
COD | < 100 mg/L | < 30 mg/L |
TSS | < 30 mg/L | < 5 mg/L |
Pathogens | Present | 99% Removed |
Odor / Color | Mild | Removed |
After Ultrafiltration (UF – Optional Final Polishing)
Parameter | Inlet | Outlet |
BOD | < 10 mg/L | < 5 mg/L |
TSS | < 5 mg/L | < 1 mg/L |
Turbidity | < 5 NTU | < 1 NTU |
Pathogen Removal | 90–95% | 99.99% |
Water Quality | Non-potable reuse | Reuse for flushing, gardening ✅ |
Applications
- Residential Apartments
- Gated Communities
- Townships & Smart Cities
- Group Housing Projects
- Urban & Semi-Urban Residential Zones
Key Features
- Compact Design – Ideal for limited space in urban housing
- Reusable Treated Water – Save water, reduce costs
- Modular & Expandable – Scalable as population increases
- Low Maintenance – Long-life mechanical components
- Odor-Free Operation – Resident-friendly setup
- Smart Automation – Optional PLC/SCADA integration