Product DESCRIPTION

A decentralized domestic sewage treatment plant is an effective solution for residential communities, rural villages, and small municipalities without centralized sewer infrastructure.

Our modular sewage treatment plant combines sedimentation, biological treatment, clarification, and disinfection to achieve efficient removal of COD, BOD, and suspended solids. The system is scalable and energy-efficient, making it ideal for developing regions in Africa and expanding residential areas in the Middle East.

Across many African countries, wastewater treatment faces very specific challenges:

🔴 1. No Central Sewer Infrastructure

Many rural towns, worker camps, mining areas and eco-resorts are located far from municipal sewer networks. Wastewater must be treated onsite.

🔴 2. Unstable Electricity Supply

Frequent power interruptions can damage sensitive systems or stop biological treatment completely.

🔴 3. High Ambient Temperatures

In many regions, temperatures exceed 35–45°C, affecting biological stability and equipment lifespan.

🔴 4. Limited Skilled Operators

Most sites do not have professional wastewater engineers. Systems must be simple and easy to maintain.

🔴 5. Groundwater Contamination Risk

Improper septic tanks leak untreated sewage into soil, contaminating drinking water sources.

🔴 6. Budget Constraints

Projects often require cost-effective systems with low operational expenses.

2️⃣ Our Solution: Modular, Low-Maintenance Sewage Treatment Plant

We design robust, decentralized sewage treatment plants engineered specifically for African conditions:

✔ Simple operation
✔ Low energy consumption
✔ Resistant to high temperature
✔ Minimal operator intervention
✔ Modular expandable design

Capacity range: 5–1000 m³/day
Technology options: MBBR / SBR / MBR (based on discharge requirement)

Why This Process Works Well in Africa

Product Benefit

• Improves public sanitation

• Protects groundwater resources

• Low power consumption

• Easy installation

• Expandable modular design
• 

Product Feature

• Plug-and-play modular structure

• Optional solar-powered configuration

• Durable anti-corrosion materials

• Automatic control system

• Long service life

• Domestic Sewage Treatment Process

  Screening
  → Septic Tank
  → SBR / MBBR Biological Reactor
  → Secondary Clarification
  → Disinfection
  → Safe Discharge or Irrigation Reuse

• Below is a typical process configuration optimized for African domestic sewage:
• Step 1: Mechanical Screening
  Function:Removes large solids such as plastic, cloth, food waste, and debris.Why It Is Important in Africa:Many decentralized areas lack proper solid waste separation. Sewage often contains high levels of debris.

  Key Features:

  Stainless steel or anti-corrosion material

  Manual or automatic cleaning

  Prevents pump blockage

  Protects downstream equipment

  Step 2: Equalization Tank
  Function:

  Balances flow and pollutant concentration fluctuations.

  Why It Is Critical:

  In worker camps or communities, wastewater flow varies greatly between day and night. Equalization stabilizes the system.

  Key Features:

  Air mixing to prevent sedimentation

  Reduces shock load to biological system

  Ensures stable COD/BOD input

  Result: Improved biological efficiency and longer system lifespan.

  Step 3: Biological Treatment (Core Treatment Stage)

  This is the heart of the sewage treatment plant.

  We typically use:

  Option A: MBBR (Moving Bed Biofilm Reactor) – Recommended for Africa
  How It Works:

  Plastic biofilm carriers float in the aeration tank. Microorganisms grow on the surface and degrade organic pollutants.

  Key Advantages for Africa:

  ✔ Low sludge production
  ✔ Resistant to shock loads
  ✔ Simple operation
  ✔ No complex membrane cleaning
  ✔ Long service life

  Pollutants Removed:

  BOD (Biochemical Oxygen Demand)

  COD (Chemical Oxygen Demand)

  Ammonia Nitrogen

  Removal Efficiency:

  BOD > 90%

  COD > 85–90%

  Option B: SBR (Sequencing Batch Reactor) – Budget-Friendly Option
  How It Works:

  Biological treatment occurs in timed cycles: fill → aerate → settle → discharge.

  Advantages:

  ✔ Lower initial investment
  ✔ Compact footprint
  ✔ Flexible operation

  Suitable for small communities or projects with limited budgets.

  Option C: MBR (Membrane Bioreactor) – High Discharge Standard
  How It Works:

  Combines biological treatment with membrane filtration.

  Advantages:

  ✔ Produces high-quality effluent
  ✔ Suitable for water reuse
  ✔ TSS < 10 mg/L

  Recommended for projects requiring irrigation reuse.

  Step 4: Secondary Sedimentation
  Function:

  Separates biological sludge from treated water.

  Why Important:

  Ensures clear effluent before discharge.

  Features:

  Gravity settling

  Sludge recirculation system

  Stable and simple design

  Step 5: Filtration (Optional Polishing)
  Purpose:

  Removes remaining suspended solids and fine particles.

  Options:

  Sand filter

  Multimedia filter

  Cartridge filter

  Used when higher discharge standards are required.

  Step 6: Disinfection
  Function:

  Kills pathogenic bacteria and viruses.

  Options:

  Chlorine dosing

  UV disinfection

  Critical for:

  Protecting public health

  Preventing disease transmission

  Water reuse applications

  Step 7: Sludge Handling
  Why It Matters:

  Even efficient systems produce sludge.

  Solution:

  Sludge drying bed

  Sludge thickener

  Optional dewatering unit

  Designed to minimize disposal cost.

• 

Product Application

• Residential communities

• Rural villages

• Worker camps

• Housing developments

• Small municipal projects

• 

• Get a Customized Sewage Treatment Design for Your Project

  To receive a detailed proposal, please provide:

  • Daily wastewater volume (m³/day)

  • Wastewater source (community, camp, etc.)

  • Discharge requirement

  • Project location

  • Electricity availability

  Our engineering team will respond within 24 hours. Contact us with any questions at [email protected].