- General waste
- Hazardous waster
- Waste acid / Waste alkali
- Waste asbestos
Waste acid / Waste alkali
As a kind of hazard waste, waste acid refers to acid with a pH of 2.0 or below from all kinds of waste acid liquids from business activities, while waste alkali refers to alkali with a pH of 12.5 and above from the alkali liquids. Waste acid and alkali are treated through a process of neutralization and dehydration.
Inorganic waste acids including sulfuric acid, hydrochloric acid, nitric acid, hydrofluoric acid, and phosphoric acid, and organic waste acid such as acetic acid and citric acid
Carbonate of sodium or potassium, phosphate, ammonia, and amine
- Flow adjustment facility – Adjust the supply amount of waste acid and waste alkali and put it into a reaction facility.
- Reaction (neutralization) facility – React waste acid and waste alkali with chemical process (calcium hydroxide) and neutralize.
- Dehydration – Dehydrate neutralized waste fluid and implement consigned treatment for the resulting sludge in the process and sludge wastewater.