Applications of Trichloroisocyanuric Acid in Various Scenarios

Trichloroisocyanuric acid is a highly effective disinfectant and biocide. Below are its usage methods in specific scenarios:

1. Swimming Pool Disinfection

Directly dispense trichloroisocyanuric acid tablets or granules evenly into the pool. Typically, 3-5 grams per cubic metre is administered. An automatic dosing system may be installed to regulate the dosage based on the pool’s water volume and quality, thereby maintaining disinfection efficacy.

Precautions: Avoid dosing whilst swimmers are in the pool to prevent skin irritation. Thoroughly agitate the water after dosing to ensure even distribution of the disinfectant.

2. Drinking Water Disinfection

Pre-chlorination treatment: Prior to raw water entering treatment facilities, add an appropriate quantity of trichloroisocyanuric acid for pre-chlorination. This removes algae, organic matter, and certain microorganisms. The typical dosage is 1-3 milligrams per cubic metre of water. Disinfection treatment: At the final stage of water treatment, trichloroisocyanuric acid is added for disinfection to ensure drinking water meets national microbial standards. Dosage is determined by water quality and treatment process, typically ranging from 0.5 to 2 mg per cubic metre.

Precautions:

When disinfecting drinking water, dosage must be strictly controlled to prevent residual chlorine exceeding safe levels, which could pose health risks. Regularly monitor residual chlorine levels and microbial indicators to ensure disinfection efficacy.

3. What dosage of trichloroisocyanuric acid is required for sterilising fish pond water?

Apply 0.3–0.5 grams per tonne of water. Reduce dosage by half for fry ponds. Adjust downward when water transparency is high.

Precautions:
Apply during sunny mornings. Avoid use during oxygen deficiency or abnormal weather conditions.