If it is solid waste, it must be handed over to a qualified solid waste disposal company. In the past, depending on the composition of the waste salt, the valuable waste salt could be sold as a by-product. Now, if you give it to a professional solid waste company, you have to pay them a fee of about $3,000 per ton.
For the salt content of wastewater, the environmental protection department has no mandatory requirements, but the salt content of wastewater more than 2%, will have an impact on the effect of biochemical treatment, so the salt content of wastewater in general more control at about 1%, the control of the method of dilution with water.
If you meet the environmental requirements of the region, the environmental protection department in doing environmental assessment, may require the salt in the wastewater to be steamed out, if so it is miserable, to spend a lot of money to deal with!