A qualified person should determine the degree of dilution and the need for neutralizing the acid before recovering it or discharging it to a wastewater treatment facility.
Care should be taken to ensure that acid leaks, spills, or drainage do not come in contact with sulphide materials, because of the danger of evolving toxic and flammable hydrogen sulphide gas.
Once the spilled acid has been cleaned up, the contaminated area should be thoroughly washed or saturated with water. When the wash water can be collected, it should be discharged to a wastewater treatment facility designed to neutralize acidic wastes.