3. VEPL – Small Capacity Sewage Treatment Plant (5 to 50 KLD)
Compact, Efficient, & Scalable Sewage Treatment Solutions for Small to Medium Facilities
Ventilair Engineers Pvt. Ltd. (VEPL) offers a reliable and customizable Small Capacity Sewage Treatment Plant (STP) designed to treat sewage volumes from 5,000 to 50,000 liters per day (5–50 KLD). Ideal for small residential complexes, commercial buildings, schools, hotels, and small industries, our STP systems ensure compliance with CPCB/SPCB standards while enabling water reuse for non-potable applications.
Our technology options include MBBR, SBR, FAB, Extended Aeration, and MBR, all optimized for compact footprints and easy integration with existing infrastructure.
Technical Specifications
Feature | Details |
Capacity Range | 5 KLD to 50 KLD |
Technology Options | MBBR / SBR / FAB / Extended Aeration / MBR |
Material of Construction | RCC / FRP / MS Epoxy Coated |
Design Types | Modular, Containerized, or Civil Construction |
Operation Mode | Semi-Automatic / Fully Automatic |
Power Consumption | Energy Efficient with VFD Blowers & Pumps |
Disinfection | UV or Chlorine |
Final Polishing (Optional) | Ultrafiltration (UF) |
Compliance | CPCB / SPCB Norms |
Stage-Wise Inlet & Outlet Parameters
- Primary Treatment
(Screening, Grit Removal, Equalization)
Parameter | Inlet (Raw Sewage) | After Primary Treatment |
pH | 6.5 – 8.5 | 6.5 – 8.5 |
BOD | 250 – 400 mg/L | 150 – 220 mg/L |
COD | 500 – 700 mg/L | 300 – 450 mg/L |
TSS | 200 – 350 mg/L | 100 – 150 mg/L |
Oil & Grease | 20 – 40 mg/L | < 20 mg/L |
- 2. Secondary Treatment
(MBBR / SBR / FAB Biological Process + Clarifier)
Parameter | After Primary | After Secondary Treatment |
BOD | 150 – 220 mg/L | < 30 mg/L |
COD | 300 – 450 mg/L | < 100 mg/L |
TSS | 100 – 150 mg/L | < 30 mg/L |
Ammonia (NH₄) | 10 – 25 mg/L | < 10 mg/L |
- Tertiary Treatment
(Sand Filter + Activated Carbon Filter + UV / Chlorination)
Parameter | After Secondary | After Tertiary Treatment |
BOD | < 30 mg/L | < 10 mg/L |
COD | < 100 mg/L | < 30 mg/L |
TSS | < 30 mg/L | < 5 mg/L |
Pathogen Removal | Moderate | Up to 99% Reduction |
Odor & Color | Slight / Off-color | Clear & Odorless |
- After Ultrafiltration (Optional Final Polishing)
(For High-Quality Reuse in HVAC, Flushing, Gardening)
Parameter | After Tertiary | After UF Output |
BOD | < 10 mg/L | < 5 mg/L |
TSS | < 5 mg/L | < 1 mg/L |
Turbidity | < 5 NTU | < 1 NTU |
Pathogen Removal | Up to 99% | Up to 99.99% |
Key Benefits of VEPL Small Capacity STP
- Compact design fits limited spaces
- Scalable systems from 5 to 50 KLD based on demand
- Compliant with national pollution control norms
- Low power consumption & easy operation
- Enables water recycling for flushing, gardening & HVAC
- Automated operation with remote monitoring options
- Easy installation and minimal maintenance
Ideal Applications
- Residential apartment complexes
- Small hotels, resorts & guest houses
- Commercial offices & business parks
- Schools, colleges & educational institutions
- Small manufacturing units & workshops
Why Choose VEPL?
- 1500+ successful STP installations nationwide
- Expert in multiple biological treatment technologies
- Customized designs tailored to site and load requirements
- Comprehensive services from design to AMC
Pan-India support with export capability