As a side note, another very serious issue present in current high-salt wastewater treatment processes is the presence of solid contaminants

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As an aside, another very serious issue in the current treatment of high-salt wastewater is the ultimate fate of the solid salts. Due to the high costs associated with treating it as hazardous waste, some companies pile up or landfill this mixed salt, which over time inevitably has a severe impact on the soil, groundwater, and the environment ； Some companies hand the mixed salt over to unscrupulous individuals for disposal; these individuals either mix the mixed salt into other industrial products to use in fraudulent purposes, or they even process the waste salt into edible salt. The discovery of \"pesticide waste salt\" ending up on dining tables is a typical example of this. Therefore, **while strengthening supervision over wastewater treatment, it is essential to enhance control over the final solid salts resulting from that treatment. Efforts should be made to use salt separation processes to convert the salts in wastewater into qualified industrial products, and strict oversight must be exercised regarding the fate of these solid salts. Otherwise, the solid salts discharged by thousands of polluting enterprises will ultimately cause serious environmental and social problems.