British Salt operations meet the highest standards of energy conservation and environmental responsibility.
The complete British Salt production operation is based on efficiency and ensuring the impact on the environment and the agricultural and wildlife integrity is minimal. We operate our own power plant, making maximum use of heat and flue gases in the brine evaporation processes and return a high proportion of absolutely clean water into the local rivers. More recently, brine cavities are being put to good use as safe, secure and unobtrusive gas storage chambers.
We closely audit all emissions and production by-products and are committed to protecting the environment surrounding the extraction operations.
British Salt has always been at the forefront when it comes to innovation and new technology. New principles and processes are pioneered to maintain its position as Britain’s leading producer of pure white salt.
The company was one of the first in the world to employ six-stage evaporation technology, producing superior efficiency and product quality compared with many of its competitors. This plant uses steam captured from British Salt’s own on site power generating plant.
The combined dual oil/gas fired heat and power plant offers maximum efficiency, using a proportion of the flue gases to help purify the brine.
Steam from the high-pressure boilers passes through turbine generators producing electricity to operate the plant. The exhaust steam from the turbine is then used as the heat source for a six-effect evaporator plant, where water is boiled off the brine to produce salt crystals. Heat from the steam is then used to dry the salt crystals.
To ensure compliance with the highest environmental standards, the combined heat and power plant is registered with and licensed by the Environment Agency.
British Salt has a licence to abstract water from a local river, which is matched to the plants maximum capacity. The licence essentially permits water to be ‘borrowed' from the river, which is returned (after having been distilled out of the brine) to another brook, in an extremely pure form.
The amount of water extracted is therefore a small proportion of the total water requirement, as much of the condensed water is now returned to the brinefield to be re-circulated. Since the controlled brine pumping was started over 20 years ago, the stream has never approached a dry state despite droughts and imposed restrictions.
The brine collection and purification processes also reflect British Salt’s concern for environmental issues. All brine production is controlled to ensure that the resultant caverns cannot cause subsidence and land damage. The non¬hazardous waste from the production processes is also returned to an underground cavern to form a closed environmental loop.