How Silotank’s DualTank system combines primary storage and secondary containment in one engineered solution.

Safe chemical and liquid storage depends on more than the primary tank. In many applications, secondary containment is essential to help protect people, the environment and surrounding infrastructure in the event of a leak or spill.

Traditionally, this has often meant installing a separate tank and bund arrangement. While this approach can be effective, it may also require additional materials, more site preparation, a larger footprint and longer installation time.

Silotank’s DualTank system offers a different approach by integrating primary storage and secondary containment into a single engineered structure.

What is DualTank?

DualTank is Silotank’s integrated containment system. It combines the main storage tank and the secondary containment system within one structure.

Instead of installing a separate storage tank inside a separate bund, the DualTank system is designed to provide containment as part of the tank itself. This can help simplify specification, reduce site requirements and improve long-term safety.

Why secondary containment matters

Secondary containment is designed to reduce the risk of uncontrolled release if a primary tank fails or if there is a spill during operation.

It is especially important where tanks store chemicals, acids, alkalis, water treatment chemicals, industrial liquids, hazardous substances or liquids close to sensitive drainage or watercourses.

The purpose is simple: if something goes wrong, the containment system helps keep the liquid controlled. This protects site operators, local environments, drainage systems, watercourses, plant rooms and nearby assets.

The limitations of traditional tank-and-bund systems

A traditional chemical storage arrangement may involve a primary tank placed within a separate bund. While this approach is widely used, it can create practical challenges.

Larger footprint

A separate bund often requires additional space around the tank. On compact sites, this can make layout planning more difficult.

More materials

Separate containment structures can increase material use. This may add cost, weight and embodied carbon.

Longer installation time

A separate bund may require additional civil works, preparation, curing time or assembly. This can increase project duration and create more site disruption.

More interfaces

Where there are more components, there can be more interfaces to inspect and maintain. This may include joints, penetrations, pipework supports and drainage arrangements.

Benefits of DualTank

1.Integrated containment:  The main benefit is that primary storage and secondary containment are engineered as one system. This simplifies the overall storage arrangement and helps reduce the need for separate containment infrastructure.

2.Reduced site footprint: By integrating containment into the tank structure, DualTank can reduce the space needed compared with some traditional bunded arrangements. This can be useful on sites where plant space is limited.

3.Faster installation: Because DualTank can be manufactured off site, the system can arrive ready for installation with less site assembly required. This supports faster project delivery and can reduce disruption to ongoing operations.

4.Lower material use: By removing the need for a separate bund structure, DualTank can reduce material requirements compared with traditional tank-and-bund systems. This can support both commercial and sustainability objectives.

5.Improved environmental protection: Built-in containment helps reduce environmental risk by providing a controlled secondary barrier. This is particularly valuable for chemical storage sites, water treatment works and locations where spills could create serious consequences.

Where can DualTank be used?

DualTank may be suitable for chemical storage, water treatment chemical storage, wastewater treatment sites, industrial process liquids, dosing systems, sites with limited space and sites with environmental sensitivity.

Each application should be reviewed individually to confirm chemical compatibility, capacity, access, installation requirements and regulatory expectations.

How DualTank supports better project planning

One of the key advantages of an integrated system is that it can simplify project planning. Rather than coordinating multiple packages for tank supply, bund construction, pipework and site assembly, a more complete system can be designed and manufactured off site.

This can benefit main contractors, water companies, industrial site operators, consulting engineers, procurement teams and maintenance managers.

DualTank and lifecycle value

The value of DualTank is not only in the initial installation. It can also support the full lifecycle of the storage system through reduced maintenance interfaces, long service life, corrosion-resistant HDPE construction, simplified inspection planning, reduced containment risk and lower site disruption during installation.

DualTank offers a modern approach to chemical and liquid storage by combining primary storage and secondary containment within a single engineered system. For sites where safety, environmental protection, space, installation time and long-term performance matter, DualTank can provide a practical alternative to traditional tank-and-bund arrangements.

Interested in DualTank for your chemical, water treatment or industrial storage project?

Contact Silotank to discuss integrated primary storage and secondary containment solutions designed around your site.

Telephone: 02890432843
Email: sales@silotank.com