a.Acidic pH Adjusters: Such as sulfuric acid and hydrochloric acid. They are used to lower the pH value of water and are often used in water treatment processes that require acidification, such as removing metal hydroxides and adjusting the pH value of wastewater before biochemical treatment.
b.Alkaline pH Adjusters: Such as sodium hydroxide, calcium hydroxide, and soda ash (sodium carbonate). They are used to increase the pH value of water and play an important role in neutralizing acidic wastewater, adjusting the pH value of boiler water and cooling water, etc.
