Role in Water Disinfection
Chlorine is the most widely used disinfectant in water treatment globally. When dissolved in water, chlorine reacts to form hypochlorous acid (HOCl) that inactivates bacteria, viruses, protozoa, and algae by disrupting cell membranes and enzyme function. Its effectiveness across a broad range of microorganisms, its residual-maintaining capability, and its low cost per volume treated make it the reference standard for both municipal and industrial water treatment.
Beyond disinfection, chlorine performs oxidation functions in the treatment train: it oxidizes dissolved iron and manganese to insoluble forms that can be filtered, and provides taste and odour control by breaking down organic precursors before distribution.
Certified Ton Cylinders
We supply liquid chlorine in certified ton cylinders. Cylinders are manufactured and hydraulically tested to applicable pressure vessel standards, and each unit is inspected and certified before delivery.
Why ton cylinders? For water treatment plants requiring continuous supply, ton cylinders offer a high storage density per footprint compared to smaller cylinders, reducing handling frequency and minimizing connection events.
Cylinder accessories, including yoke connectors, pressure-reducing valves, and flexible connections compatible with ton cylinder valve configurations, are available to support proper installation at the chlorinator room.
Handling, Safety & Training
Liquid chlorine is a liquefied compressed gas and a Toxic Industrial Chemical (TIC) classified under OSHA and GHS hazard categories. Safe handling requires trained personnel, proper equipment, and documented emergency procedures. We provide operator training covering:
Training is conducted on-site at the facility and is tailored to the specific chlorinator room layout, cylinder storage configuration, and applicable local regulations.
Applications
| Application | Role of Chlorine | Notes |
|---|---|---|
| Municipal water treatment plants | Primary disinfection; breakpoint chlorination for ammonia removal; residual maintenance through distribution | Dose governed by WHO and national drinking water standards; chlorine demand varies with source water turbidity and organic loading |
| Industrial process water | Biofouling control in cooling towers, heat exchangers, and recirculating systems | Dosed intermittently or continuously depending on system volume and biological risk; compatible with most corrosion inhibitor programs when properly sequenced |
| Effluent treatment | Oxidation of cyanide, phenols, and other reducible contaminants prior to discharge; decolourisation of industrial wastewater | Contact time and pH management are critical; excess chlorine must be neutralized before discharge to regulated waterways |
| Pulp & paper | Bleaching stages and process water disinfection to control slime-forming bacteria in paper machine circuits | Chlorine dioxide is more common in modern bleach plants; liquid chlorine remains relevant for water system biocidal control |