ClearFox® Mobile Sewage Treatment Plant

What is a mobile sewage treatment plant?

A mobile sewage treatment plant is a pre-assembled wastewater treatment system that treats domestic sewage on site. It is usually installed inside one or more ISO shipping containers and delivered ready for fast installation.

The plant treats wastewater from toilets, showers, kitchens, laundries, washrooms and accommodation facilities. It can be installed for temporary use, long-term use or permanent decentralized sewage treatment.

Mobile sewage treatment is often used where:

• No sewer connection is available
• A municipal plant is overloaded
• A camp must be installed quickly
• A construction or mining site moves over time
• Wastewater must be treated before discharge
• Treated effluent is required for irrigation or reuse, where permitted
• Civil works must be kept to a minimum

Who uses ClearFox® mobile sewage treatment systems?

Construction camps

Large construction projects often need temporary accommodation, offices, sanitary facilities and welfare buildings before permanent infrastructure is available. A containerized sewage treatment plant allows wastewater to be treated on site and removed when the project is complete.

Mining and worker camps

Mining camps and remote worker settlements generate sewage from accommodation blocks, kitchens, laundries, showers and washrooms. Occupancy can change quickly, so the treatment plant must handle variable flow and load.

Military camps

Military camps need robust, low-maintenance sewage treatment that can be transported, installed quickly and operated by trained site personnel. Remote monitoring can reduce operational risk.

Municipalities and towns

Municipalities can use mobile sewage treatment for temporary capacity, plant upgrades, emergency bypass, population growth or decentralized treatment for remote villages.

Refugee and humanitarian camps

Humanitarian sites require fast sanitation infrastructure to protect public health and local water resources. UNHCR identifies WASH services as life-saving emergency assistance that supports health, dignity and disease prevention.

Hotels, tourism and seasonal sites

Hotels, resorts, campsites and seasonal accommodation sites often experience large changes in wastewater flow. A modular sewage treatment plant can be scaled to the actual project load.

What sewage sources can be treated?

ClearFox® mobile sewage treatment plants can treat domestic wastewater from:

• Toilets and black water
• Showers and washrooms
• Kitchens and canteens
• Laundry facilities
• Accommodation blocks
• Offices and welfare units
• Schools and clinics inside camps
• Hotels, resorts and temporary settlements

How the ClearFox® mobile sewage treatment process works

A mobile sewage treatment plant is designed according to the required effluent quality. A typical sewage treatment train includes the following stages.

1. Inlet pumping or gravity feed

Wastewater enters the system from the camp, building, settlement or municipal network. Depending on site levels, a pumping station may be used.

2. Mechanical screening

Screening removes coarse solids, rags, fibres and other materials that could damage pumps or reduce process reliability.

3. Buffer and flow equalisation

Sewage flows from camps are rarely constant. Peak flows often occur in the morning, evening, after shifts, during meal times or after laundry periods. A buffer tank balances these peaks and feeds the biological process at a stable rate.

4. Biological treatment

The biological treatment stage removes organic pollution such as BOD and COD. ClearFox® sewage systems typically use robust biological processes such as FBBR or SBR, selected according to project requirements.

5. Clarification

After biological treatment, sludge is separated from the treated water using a clarifier. This produces clarified effluent and returns or removes sludge as required by the process design.

6. Nutrient reduction

Where required by local standards, the plant can be designed for nitrogen and/or phosphorus reduction.

7. Disinfection

For sensitive discharge points or reuse applications, the treated effluent can be disinfected using UV or chlorine, depending on the project requirement.

8. Sludge storage or dewatering

All sewage treatment produces sludge. The system can include sludge storage or sludge dewatering to reduce disposal frequency and simplify operation.

Why ClearFox® biological treatment is suitable for mobile sewage projects

Mobile sewage treatment systems must be robust, easy to operate and tolerant of fluctuating flows. This is especially important in camps and remote sites where sewage loads can vary according to occupancy, shift patterns, mealtimes and seasonal use.

The ClearFox® FBBR process uses fixed carrier media where microorganisms grow as a biofilm and break down organic pollutants. Project references show ClearFox® using FBBR with screening, buffers and clarifiers for remote camps, military sites and containerized sewage treatment applications.

Benefits for sewage projects:

• Stable biological treatment
• Suitable for variable inflows
• Low-maintenance operation
• Compact containerized layout
• Modular expansion
• Optional remote monitoring

System configurations

Single-container sewage treatment plant

For smaller camps, remote sites or compact projects where space is limited

Typical modules:

• Buffer/equalisation
• FBBR biological treatment
• Clarification
• Sludge storage
• Control panel

Multi-container sewage treatment plant

For larger camps, municipalities, military bases or projects with higher population equivalent.

Typical modules:

• Screening container
• Buffer tanks
• Biological treatment containers
• Clarifier
• Disinfection
• Sludge treatment
• Control and remote monitoring

Rental mobile sewage treatment plant

For temporary accommodation, construction projects, maintenance bypass, emergency response and short-to-medium-term municipal capacity.

Best for:

• Temporary camps
• Construction compounds
• Municipal bypass
• Emergency treatment
• Pilot projects
• Short-term compliance

Permanent containerized sewage treatment plant

For remote settlements, camps, villages, hotels, institutions or long-term decentralized sewage treatment.

Best for:

• Remote communities
• Mining camps
• Military bases
• Hotels and resorts
• Municipal satellite treatment
• Sites where civil construction is difficult or expensive

Why choose ClearFox®?

Containerized and transportable

ClearFox® containerized systems are pre-installed inside ISO shipping containers and designed for transport by land or sea with minimal on-site work.

Built for camps and remote sites

ClearFox® project references include mining camps, military camps, worker camps and extreme-climate installations. These are the exact proof points this page should lead with.

Modular capacity

The current ClearFox® containerized systems page states that systems can treat sewage projects from 50 to 20,000 people, with modular design for larger or smaller project needs. Confirm the final published range internally before use.

Low civil works

Mobile sewage systems are designed to avoid major permanent construction. The usual site requirements are a prepared base, inlet and outlet connection, power supply and access for operation and desludging.

Designed for the required effluent standard

ClearFox® engineers configure each system around the required discharge or reuse target, rather than relying on one generic plant design.

Operation and maintenance support

ClearFox® can support commissioning, operator training, spare parts, service agreements and optional remote monitoring.

Reference projects

Mobile sewage treatment for a 3,000 PE military camp

ClearFox® delivered a mobile containerized FBBR treatment plant for a military camp in Central America. The system was designed for 3,000 PE and used screw screening, aerated buffers, FBBR and clarification resulting in COD reduction from 1,400 mg/l to below 90 mg/l and BOD reduction from 750 mg/l to below 25 mg/l.

Worker camp sewage treatment, Sierra Leone

ClearFox® supplied a containerized wastewater treatment plant for a gold mining worker camp treating approximately 50 m³/day. The system included mechanical pre-treatment, aerated buffer tanks, FBBR, clarifier and sludge storage.

Military sewage treatment plant, US Dept of Defence

ClearFox® supplied a compact containerized sewage treatment plant for a military camp producing approximately 15 m³/day. The system used a buffer, FBBR and clarifier and was designed for low-maintenance operation with remote access.

Extreme-climate sewage treatment, Antarctica

ClearFox® supplied a mobile containerized wastewater treatment plant for a research station in Antarctica, using FBBR, clarification and UV disinfection with special engineering for extreme temperatures.

Design and delivery process

1. Project data

We review the number of users, daily flow, peak flow, accommodation type, kitchen/laundry load, discharge standard, site temperature, available space and power supply.

2. Sewage treatment concept

ClearFox® engineers select the correct process layout, including screening, buffer volume, biological treatment, clarification, disinfection and sludge handling.

3. Containerized design

The plant is designed as a single-container or multi-container system, depending on capacity and required treatment quality.

4. Manufacturing and testing

The equipment is assembled and tested before delivery to reduce installation time on site.

5. Delivery and installation

The system is transported to site and installed on a prepared base. Connections are made to the inlet, outlet, power supply and discharge point.

6. Commissioning and training

ClearFox® commissions the plant and trains local operators.

7. Operation and service

Service, maintenance, remote monitoring and spare parts support can be provided according to project requirements.

Mobile sewage treatment plant rental or purchase – what to choose?

Choose rental when you need:

• A temporary construction camp system
• Emergency sewage treatment
• Municipal bypass treatment
• A temporary camp or event solution
• A short-term plant during maintenance or upgrade
• A low-risk trial before permanent installation

Choose purchase when you need:

• A permanent remote sewage treatment plant
• A long-term camp system
• A municipal decentralized STP
• A hotel, resort or school sewage treatment plant
• A plant that may later be relocated or expanded

FAQs