What is the use of industrial waste sulfuric acid?

A: Utilization of industrial waste sulfuric acid:

1. Most of the waste sulfuric acid can be sent to steel enterprises for steel surface cleaning.

2. It can also be sent to the enterprise that makes the water purifier to make the aluminum sulfate water purifier.

3. In agriculture, we can add limestone to the waste sulfuric acid in crop greenhouses to increase the concentration of carbon dioxide, promote photosynthesis, and increase yield, and make its residue calcium sulfate into gypsum, which can be recycled after purification.

4. Waste sulfuric acid can be used for neutralization of alkaline wastewater in chemical industry, that is, wastewater treatment.

5. Some industrial waste sulfuric acid is generally used as fertilizer to make ammonium salt.

6. Laboratory words can be used to prepare gases, such as hydrogen and hydrogen chloride.