Leachate Landfill Tanks
OTS leachate landfill tanks are expertly designed for efficient and safe management of contaminated groundwater in land reclamation projects. Our tanks provide a robust solution tailored to meet the unique challenges of leachate storage and disposal.
What are leachate landfill tanks?
Leachate tanks are used in landfill and land reclamation projects. They are designed to hold contaminated ground water which is being extracted from the site. Commonly called leachate, this ‘water’ can be highly corrosive, toxic or acidic depending on what the site was being used for previously. Once the leachate landfill tank is full or the project has ended the contents are then transferred to a tanker for removal to an appropriate waste facility site for treatment and safe disposal.
Leachate tank main features
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All OTS bunded steel tanks meet CIRIA 736 guidance for leachate storage and are built and certified to OFERT OFS T200. This goes beyond BS799 Part 5 J by covering both the primary tank and bund, aligning with EA requirements.
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Manufactured using S275 steel with a plate thickness of 6mm under a controlled Manufacturing Control Plan (MCP). All tanks are factory pressure tested to 1.5 psi in line with OFS T200 standards.
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Each tank is supplied with engineering drawings and a serial plate confirming capacity, production date, and pressure testing.
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Chlorinated Rubber or Temaline lining is applied to the internal tank surface for corrosion resistance and longer lifespan.
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We recommend a site-specific management plan that includes independent annual inspections and routine visual checks by site managers to monitor compliance and residue build-up.
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Anti-slip finish on walkway surfaces, lockable hooped ladders, and optional full or partial top access walkways.
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Tanks are built to order with capacities from 25,000L to 125,000L, with either open or closed bunded designs based on environmental protection needs.
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Weir design with additional manways for improved compartment access
‘StayLess’ design for safer residue removal
Overfill protection devices to safeguard against input failure
Medium abrasive isolation valves suited for leachate
Tank and bund monitoring via Cat & Mouse gauge or ATEX-approved remote access gauge
Breakaway couplings for added spill protection
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On completion of your project, OTS can safely dispose of the tanks on your behalf.
All OTS tanks are designed and built to accord with the Control of Pollution Regulations which require a Design Life Expectancy of 20 years, and OFTEC OFS T200. Unlike the BS799 Part 5 2010 standard, which only covers the primary tank, the OFTEC OFS T200 certification includes the bund, providing an enhanced specification. OTS Group provides Conformity Certificates as standard practice.
A leachate storage case study
OTS Group is proud to have recently delivered a fully compliant leachate storage solution, hitting all the needs of our client’s brief and delivered on time and on budget. The main goal for this project was to supply, transport, and commission six new leachate landfill storage tanks, while also managing the decommissioning and safe disposal of the client's redundant tanks. The challenge lay in delivering a seamless solution that kept site downtime minimal, ensured safety, and incorporated the latest technological advancements in tank design.
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Understanding the implications of prolonged downtime for our client, OTS Group offered an end-to-end service, encompassing transportation, contract crane lift, and decommissioning of the tanks. This turnkey approach meant the client experienced minimal disruptions during the project's execution.
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OTS Group provided a range of both cylindrical and rectangular steel bunded tanks, spanning capacities from 50m3 to 100m3. Notably, a unique 'Stay less' option was introduced, ensuring our client was equipped with state-of-the-art storage capabilities. The inclusion of redesigned weir options showcased our commitment to innovation tailored to specific client needs.
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Considering the nature of leachate landfill storage, OTS incorporated a series of security enhancements. These included a lockable hooped ladder, a safety walkway, and breakaway couplings - all designed to minimise potential spillage and damage. Additionally, each tank was treated with a specialised rust inhibitor lining, further extending the tanks' lifespan and ensuring the stored leachate remained uncontaminated.
