More recently salt is also sourced from waste streams. In the chemical industry, salt waste streams can be recycled and fed back as a raw material in the production process. Saline waste streams are also obtained from shale gas production, waste incineration, coal mining, potash mining, and from desalination plants. In most cases the recycling of salt cannot compete economically with conventional salt production. Recycling of salt is in most cases motivated by expensive disposal of saline waste, or by scarcity of freshwater which is also obtained from brine recycling. The share of recycled salt to the overall salt supply could become important as compared to the overall size of the salt market.


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