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Pumps control landfill leachate

What is your technology?

Enitial’s Solar Submersible Pump System, developed with German pump manufacturer Lorentz, which controls landfill leachate levels.  

How does it work?

The system harnesses the Sun’s energy to power itself and pumps leachate to control the level of liquid within the waste. The data is logged and then integrated into an electronic communication system to produce reports demonstrating compliance with the landfill site’s environmental permits.

Where would it ideally be used?

The system was designed specifically for controlling leachate levels in landfill. The fact that it requires no power from the national grid makes it ideal for closed or remote landfill sites. 

Landfill leachate

How is it different?

As well as being solar powered, the Solar Submersible Pump System integrates the data it collects into electronic communication systems, removing the need for manual recording and the scope for human error.

The pump can also be operated remotely. It requires little servicing and maintenance.

Where has it been used?

One of the UK’s largest landfill operators has seven pumps at a site in the south-east of England, which is almost full and nearing the end of its active life. The client is looking to introduce the system at its other sites.

Any savings?

Typically, the capital and running costs, including service and energy, of the solar pumps are 50% of the costs of pneumatic pumps and 70% of standard electric submersible pumps over a five-year period.  

What about maintenance?

The pumps do not require any planned maintenance because they are self-cleaning and, unlike standard pneumatic pumps, do not create scale through the introduction of air. They are also resistant to corrosion.

What is its life span?

The pumps are expected to last more than 10 years.

How is it future-proofed?

Controlling leachate levels at landfill sites is a requirement of environmental permits issued to landfill operators, so control systems are expected to be required for the long term.

Any future applications?

The technology is partly derived from groundwater and crude oil applications, so would lend itself to contaminated land remediation projects.

How many have you sold and where?

Enitial has more than 30 units installed and operational across the UK with a variety of companies that want to see if the pumps can handle their worst wells in their worst sites. There has been a positive response from clients, and Enitial has been pleased with the system’s performance in these challenging wells.

Anything else?

The Solar Submersible Pumps are efficient and reliable, provide excellent data and have a minimal carbon footprint.

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