1. FAB STP System (Fluidized Aerobic Bio-Reactor)
Advanced Biological Wastewater Treatment Technology
The FAB (Fluidized Aerobic Bio-Reactor) is a biological wastewater treatment system that uses aerobic microbes attached to suspended media to break down organic matter in sewage. The media, kept in constant motion through aeration, increases surface area for microbial growth, enabling efficient treatment in a compact footprint. The system is ideal for decentralized and medium-sized sewage treatment applications where space, efficiency, and automation are priorities.
Product Overview
VEPL’s FAB STP System is a plug-and-play, modular, and scalable sewage treatment plant suitable for residential colonies, hotels, hospitals, institutions, and industrial establishments. The FAB process ensures low sludge generation, excellent BOD/COD reduction, and crystal-clear treated water suitable for reuse in flushing, landscaping, and car washing.
Designed for long-term, reliable performance with minimal maintenance, VEPL’s FAB STP meets CPCB and State Pollution Control Board (SPCB) norms with ease.
System Components & Process Flow
Stage | Component | Function |
Screening Chamber | Removes debris, grit, and solid waste | |
Equalization Tank | Regulates variable inflow & stabilizes sewage | |
FAB Reactor | Contains floating bio-media & blowers for aerobic digestion | |
Secondary Clarifier | Settles suspended solids from treated sewage | |
Sludge Management | Sludge pump to filter press or drying beds | |
Tertiary Treatment | Sand filter + carbon filter + optional Ultra Filtration (UF) | |
Disinfection | UV unit / Ozonator to kill pathogens | |
Treated Water Tank | Stores clean water for reuse | |
Standby Equipment | Backup blower & pump for uninterrupted service | |
Control Panel | Manual or PLC-based control panel with safety alarms |
Technical Specifications
Parameter | Specification |
Technology | FAB (Attached Growth Aerobic Process) |
Capacity Range | 5 KLD to 500 KLD (modular expansion possible) |
Media Type | HDPE/PP floating bio-media (600–800 m²/m³ surface area) |
Disinfection | UV + Optional Ozone |
Structure | FRP, MS (epoxy coated), or RCC tanks |
Automation | Semi-auto / PLC-based options available |
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 ✅ |
Power Requirement (Approximate)
Plant Size | Total Load | Main Equipment |
10 KLD | ~3–4 HP | 1 HP blower, 1 HP pump, 1 HP filter, UV |
50 KLD | ~10–12 HP | 3–5 HP blower, 3 HP pump, 1.5 HP UV |
100 KLD | ~18–20 HP | 5 HP blower, 5 HP pump, UV/Ozone/Filter Press |
Includes standby blower and pump for continuous 24×7 operation.
Biological Treatment Highlights
- Media-Based Biofilm: Enhances microbial contact with wastewater
- EM/Bio-Culture Optional: Accelerates seeding and enhances process efficiency
- Low Sludge Volume: Minimal handling and disposal required
- Odor-Free: Aerobic digestion reduces foul smells
Why Choose FAB STP by VEPL?
- Compact & Modular Design – Ideal for space-constrained sites
- Low O&M Cost – Efficient power usage, minimal chemical requirement
- High Treatment Efficiency – BOD/COD removal >90%
- Durable Build – MS/FRP with anti-corrosive coating or RCC
- Reuse-Ready Output – Meets flushing & gardening standards
- Complies with CPCB/SPCB Norms
- Quick Installation – Fabricated unit ready in weeks
Applications
- Apartment Complexes & Townships
- Hospitals, Hotels, and Resorts
- Schools, Universities & Hostels
- Government and Military Camps
- Commercial Buildings & Malls
- Small Industries & Food Parks
Certifications & Approvals
- CPCB & SPCB Compliance
- ISO 9001:2015 Certified Design & Fabrication
- Supports NGT, RERA, and Green Building Codes
- Suitable for Smart City & AMRUT Projects