Bioside HS 15% (Cooling Tower)

Bioside® HS 15%

Multipurpose PAA Microbiocide for Cooling Water Systems
EPA Reg No. 63838-2

BioSide® HS 15% is a multipurpose peracetic acid (PAA) based microbiocide developed for equipment sanitizing, disinfection, aseptic packaging, and bacteria, fungi, slime, and odor control.

BioSide® HS 15% provides effective microbiological control for cooling water systems. It’s the only drop-in, single-feed alternative to stabilized bromine for cooling towers.

Its formulation — a balanced mixture of peracetic acid, hydrogen peroxide, acetic acid, proprietary ingredients, and water — controls slime-forming bacteria and biofouling in once-through and recirculating cooling water (cooling towers, evaporative condenser, and air washers).

  • Single feed chemistry
  • Cost-effective
  • Controls microbial, slime, and biofilm growth in industrial cooling water
  • Does not require activation

Due to its multipurpose nature, BioSide® HS 15% can be used:

  • In the treatment of cooling water, oilfield process water, and wastewater
  • In fresh or recycled water, injection water, and floodwater
  • For disinfection and microbial control in effluent treatment systems
  • For reverse osmosis (RO), ultrafiltration (UF) and other membrane cleaning and biofilm removal
  • For antimicrobial rinse of precleaned or new returnable or non-returnable containers
  • For sanitation of both organic and conventional food and beverage plants and commercial greenhouses, used on conveyors, pipelines, equipment, floors, walls, and drains

PAA Calculator

Fill in the boxes below to estimate the chemical usage for the specified PAA system:

US Units
Amt. of 15% PAA Required
ppm PAA Required
Gallons of Water
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Metric Units
Amt. of 15% PAA Required
ppm PAA Required
Liters of Water
Low Rate