Eco-Friendly Sewage Treatment System
A Sustainable, Low-Energy Wastewater Solution by VEPL
VEPL’s Eco-Friendly Sewage Treatment System is a sustainable, low-footprint, and energy-efficient solution designed to treat domestic and institutional wastewater with minimal environmental impact. This system combines natural biological processes, low-energy technologies, and green infrastructure like reed beds, bio-digesters, or constructed wetlands, delivering high-quality effluent suitable for reuse in irrigation, landscaping, flushing, and groundwater recharge.
Ideal for rural communities, eco-resorts, government institutions, schools, green buildings, and smart villages, this system supports the Swachh Bharat Mission, Jal Jeevan Mission, and other sustainability-focused programs.
System Features & Components
Component | Description |
Inlet Chamber | Primary screening for grit, plastics, and debris |
Settling/EQ Tank | Stabilizes flow and removes suspended solids |
Bio-Digester Tank | Anaerobic digestion of sewage using specialized bacteria or EM solution |
Reed Bed System (Optional) | Natural filtration through aquatic plants (Phragmites, Canna, etc.) |
Tertiary Filtration | Sand + activated carbon filters for polishing |
Disinfection Unit | UV system or chlorinator ensures safe water reuse |
Treated Water Tank | Stores clean water for reuse in toilets, gardens, etc. |
Sludge Management | Minimal sludge; digested and removed periodically |
Control System | Low-maintenance panel (manual or semi-automatic) |
Optional Accessories | Standby pump, solar power backup, IoT monitoring |
Key Eco-Friendly Features
- Low Power Consumption – Suitable for solar/renewable integration
- No Chemical Use – 100% natural microbial treatment
- Minimal Sludge Generation – Reduced O&M costs
- Odor-Free & Aesthetic – Blends well with landscaping
- Reed Beds / Wetlands – Natural polishing & oxygenation
- Energy Independent Option – Works with gravity & solar pumps
- Zero Discharge Ready – Supports full reuse of treated water
- Rainwater Recharge Compatible – Combined recharge & reuse model
Technical Specifications
Parameter | Range |
Sludge Output | Minimal (once every 6–12 months) |
Power Requirement | As low as 0.5–1.5 HP total |
Disinfection Options | UV / Solar UV / Chlorine |
Operation | Semi-automatic or manual (low skill required) |
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 ✅ |
Applications
- Rural Panchayats & Smart Villages
- Eco-Resorts & Farmhouses
- Schools, Ashrams, & Religious Institutions
- Tourist Facilities & Government Guest Houses
- Forest Departments / Hill Stations / Nature Parks
- CSR Projects & Green Building Projects
- Urban Gardens & Rainwater Harvesting Sites
Regulatory Compliance
- CPCB / SPCB Approved
- Complies with MoEFCC / NGT Guidelines
- Supports Jal Jeevan Mission, Swachh Bharat Mission & AMRUT norms
- Suitable for Green Building (IGBC/GRIHA) certifications
Why Choose VEPL’s Eco-Friendly STP?
- Nature-Based Technology with proven results
- Low Operation & Maintenance requirements
- Zero Liquid Discharge (ZLD) ready
- Reduces Water Bills by reusing over 90% of wastewater
- Promotes Circular Economy & Water Security