Feature preview: The hidden problem of landfill leachate

Nitrification system on landfill leachate MBR project.
Nitrification system on landfill leachate MBR project.

Landfill sites are locations where industrial clients and municipal waste management departments deliver their solid waste to be buried and compacted with other wastes. In the UK, the Environment Agency licenses and regulates over 4000 landfill sites, helping to ensure that their impact on the environment is minimized. Currently, around 170 million tonnes of waste from homes and businesses is sent to landfill sites in the UK each year.

Landfill sites are locations where industrial clients and municipal waste management departments deliver their solid waste to be buried and compacted with other wastes. In the UK, the Environment Agency licenses and regulates over 4000 landfill sites, helping to ensure that their impact on the environment is minimized. Currently, around 170 million tonnes of waste from homes and businesses is sent to landfill sites in the UK each year. Rainwater that percolates through the landfill site is collected and this must be treated either on or off site for the whole life of the landfill site. This leachate typically has high concentrations of chloride and ammonia coupled with a high chemical oxygen demand (COD), associated with various inorganic contaminants such as the toxic heavy metals cadmium, mercury, lead, arsenic chromium and copper. 

Advanced MBR landfill leachate treatment system.

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