Cl02 & Chemical Dosing Systems

Chlorine Dioxide

Chlorine Dioxide

Chlorine dioxide is one of the fastest growing Chlorine alternatives in water treatment solutions. This technology offers the benefits of effectiveness at high pH, being unaffected by ammonia, and demonstrating significant advantages over Chlorine in systems susceptible to high levels of organic contaminants. Because Chlorine dioxide is a selective oxidizer, its ability to control microorganisms in water at very low dosages makes it an especially cost effective solution.

Major Advantages of Chlorine Dioxide

  • Chlorine dioxide is effective over a broad pH range.
  • Chlorine dioxide has 2.5 times the oxidizing capability of Chlorine.
  • Required contact time for Chlorine dioxide is lower compared to Chlorine.
  • Chlorine dioxide destroys phenols and its derivatives.
  • Chlorine dioxide has the ability to penetrate and remove biofilm formed and kill bacteria, spores and viruses.
  • Chlorine dioxide is less corrosive than chlorine and does not hydrolyze to form acid.
  • Chlorine dioxide does not form chloramines.
  • Chlorine dioxide does not form trihalomethanes upon reaction with organic matter.
Common Applications of Chlorine Dioxide+
Chlorine Dioxide Generation Methods+
Typical Integreated Scheme for Chlorine Dioxide Generation and Dosing+

Chemical Dosing Systems

VASU provides high-grade systems for chemical storage and metering solutions across a comprehensive range of liquids, powders, slurries and emulsions. These systems have applications that include acid handling, wastewater treatment and cooling water dosing.

Our advanced storage, transfer and metered dosing systems for industrial water treatment oxidants, polyelectrolytes, coagulants, cooling tower chemicals and pH control agents include

  • Acids
  • Alum (liquid and powder)
  • Ferric chloride
  • Lime and dolomite
  • PAC
  • Polyelectrolytes (liquid and powder)
  • Sodium hypochlorite
  • Cooling tower chemicals like corrosion and scale inhibitors, biocides and biodispersants

VASU offers a full turnkey facility. From a thorough initial site survey, to installation and commissioning, VASU has broad and extensive experience in designing dosing systems, which can be manufactured off site and delivered to the customer as pre-engineered, tested solutions. These automated solutions minimize risk and site disruption, vastly improve health & safety considerations and lead to long term cost optimization.

VASU's typical scope includes

  • Design, engineering & supply of Chemical Dosing system which include
  • Sulphuric Acid Dosing System including bulk storage tanks with capacity up to 100m3 in different MOC’s
  • Corrosion Inhibitor, Scale Inhibitor, Biocide Dosing Systems.
  • Unloading Pumps, Dosing Pumps, Bulk Storage Tank & Day Tanks
  • Online Instruments & Analyzers
  • Chemical Supply
  • PGTR
  • Operation and Maintenance