Cooling Water Treatment

Cooling Water Treatment

In modern industries and public infrastructure, water plays a central role as a cooling medium. Among the available technologies, evaporative cooling towers remain one of the most efficient methods for heat transfer. Heat from hot process fluids is exchanged into cooling water through heat exchangers, raising the water temperature. A fraction of this water evaporates inside the cooling tower, reducing the temperature and allowing continuous reuse. Make-up water then compensates for evaporation losses.

Similarly, evaporative condensers are applied in closed-loop systems, where water is sprayed over hot fluid-carrying pipes to absorb heat effectively.

HydroGuard’s mission is to support industries with solutions that enhance heat transfer efficiency, reduce energy and water consumption, and ensure safe, reliable operation. To achieve this, HydroGuard offers a comprehensive portfolio of cooling water treatment chemicals.

Product Name

Composition

Comments

Product Details

Corro Guard 315

Corrosion inhibitor organic phosphinate base

Corrosion inhibitor organic phosphate base

Scale Guard 330

Phosphonate based dispersant

Scale & corrosion inhibitor/dispersant for cooling tower

Corro Guard 310

Zinc based corrosion inhibitor

Corrosion inhibitor zinc based treatment

Corro Guard 480

Silicate based corrosion inhibitor

Corrosion inhibitor potable water system

Bio Guard 11

Chlorine based biocide

Powerful chlorine based biocide

Bio Guard 13

Polyquat/quaternary ammonium compound based biocide

Quick acting non-oxidizing biocide

Bio Guard 17

Isothiazoline based biocide

Non-oxidizing and rapid acting bactericide and algaecide

Bio Guard 25

Polyquat/quaternary ammonium compound based biocide

Quick acting non-oxidizing biocide

Bio Guard 27

Aldehyde based biocide

Non-oxidizing bactericide and algaecide

Bio Guard 29

Bromine based biocide

Oxidizing biocide for high stress cooling towers

Bio Guard 31

Biodispersant based on non-ionic surfactants

Scale inhibitor/biodispersant for cooling tower

Bio Guard 33

Hydrocarbon dispersants for cooling systems

Biodispersants For Cooling Tower

Corro Guard 31H01

Highly concentrated corrosion inhibitor

Corrosion inhibitor high stress cooling water system

Corro Guard 31H02

Azole and phosphonate based inhibitor

Corrosion inhibitor open evaporative cooling tower

Corro Guard 31H03

Corrosion inhibitor organic phosphinate base

Scale & corrosion inhibitor/dispersant for cooling tower

Corro Guard 31H03

Zinc and azole based corrosion inhibitor with PTS indicator

Scale & corrosion inhibitor/dispersant for cooling tower

Corro Guard 31H04

Corrosion inhibitor organic phosphinate base

Scale and corrosion inhibitor for high stress cooling water systems

Corro Guard 31H07

Carboxylate based corrosion inhibitor

Superior antiscalant and dispersant for high stress cooling systems using TSE water

Corro Guard 31H08

Corrosion inhibitor organic phosphinate base

Superior scale inhibitor & dispersant for silica and magnesium silicate

Corro Guard 31H08

Phosphonate based corrosion/scale inhibitor

Multifunctional additive

Corro Guard 31H09

Azole and phosphonate based inhibitor

Multifunctional cooling water treatment

Corro Guard 31H10

Corrosion inhibitor organic phosphinate base

Yellow metal inhibitor additive concentrate

Corro Guard 31H13

Phosphonic acid based dispersant

Cooling system pre-treatment high alkaline oxidizing

Corro Guard BCW12

Sulfamic based corrosion inhibitor

Corrosion inhibitor for flushing process

Product Name

Composition

Comments

Product Details

Corro Guard 315

Corrosion inhibitor organic phosphinate base

Corrosion inhibitor organic phosphate base

Scale Guard 330

Phosphonate based dispersant

Scale & corrosion inhibitor/dispersant for cooling tower

Corro Guard 310

Zinc based corrosion inhibitor

Corrosion inhibitor zinc based treatment

Corro Guard 480

Silicate based corrosion inhibitor

Corrosion inhibitor potable water system

Bio Guard 11

Chlorine based biocide

Powerful chlorine based biocide

Bio Guard 13

Polyquat/quaternary ammonium compound based biocide

Quick acting non-oxidizing biocide

Bio Guard 17

Isothiazoline based biocide

Non-oxidizing and rapid acting bactericide and algaecide

Bio Guard 25

Polyquat/quaternary ammonium compound based biocide

Quick acting non-oxidizing biocide

Bio Guard 27

Aldehyde based biocide

Non-oxidizing bactericide and algaecide

Bio Guard 29

Bromine based biocide

Oxidizing biocide for high stress cooling towers

Bio Guard 31

Biodispersant based on non-ionic surfactants

Scale inhibitor/biodispersant for cooling tower

Bio Guard 33

Hydrocarbon dispersants for cooling systems

Biodispersants For Cooling Tower

Corro Guard 31H01

Highly concentrated corrosion inhibitor

Corrosion inhibitor high stress cooling water system

Corro Guard 31H02

Azole and phosphonate based inhibitor

Corrosion inhibitor open evaporative cooling tower

Corro Guard 31H03

Corrosion inhibitor organic phosphinate base

Scale & corrosion inhibitor/dispersant for cooling tower

Corro Guard 31H03

Zinc and azole based corrosion inhibitor with PTS indicator

Scale & corrosion inhibitor/dispersant for cooling tower

Corro Guard 31H04

Corrosion inhibitor organic phosphinate base

Scale and corrosion inhibitor for high stress cooling water systems

Corro Guard 31H07

Carboxylate based corrosion inhibitor

Superior antiscalant and dispersant for high stress cooling systems using TSE water

Corro Guard 31H08

Corrosion inhibitor organic phosphinate base

Superior scale inhibitor & dispersant for silica and magnesium silicate

Corro Guard 31H08

Phosphonate based corrosion/scale inhibitor

Multifunctional additive

Corro Guard 31H09

Azole and phosphonate based inhibitor

Multifunctional cooling water treatment

Corro Guard 31H10

Corrosion inhibitor organic phosphinate base

Yellow metal inhibitor additive concentrate

Corro Guard 31H13

Phosphonic acid based dispersant

Cooling system pre-treatment high alkaline oxidizing

Corro Guard BCW12

Sulfamic based corrosion inhibitor

Corrosion inhibitor for flushing process

FAQs

What are the primary issues in cooling water systems?

Cooling water systems commonly face corrosion, scaling, and microbiological fouling. Corrosion weakens metal surfaces such as pipes and heat exchangers, leading to leaks and equipment damage. Scaling occurs when dissolved minerals like calcium and magnesium precipitate, reducing heat transfer efficiency. Microbiological fouling, caused by bacteria and algae, forms biofilms that block water flow and increase energy consumption. HydroGuard’s chemical programs address these challenges by optimizing water chemistry and providing targeted inhibitors and biocides.

How can corrosion in cooling systems be prevented?

Corrosion can be controlled using phosphate-based or molybdate-based corrosion inhibitors, pH adjustment, and regular system monitoring. HydroGuard’s solutions include on-site analysis, custom inhibitor dosing, and routine inspection, ensuring that metal surfaces remain protected and equipment lifespan is maximized.

What causes scaling in cooling towers, and how can it be controlled?

Scaling is caused by the precipitation of minerals when water evaporates in the cooling tower. HydroGuard combats this with antiscalants and dispersants that prevent mineral deposition and facilitate the removal of small particulates before they adhere to surfaces. Regular blowdown management and water softening also help maintain proper cycles of concentration.

What are the benefits of HydroGuard cooling water treatment chemicals?

HydroGuard’s programs prevent corrosion, scaling, and microbial fouling, ensuring efficient heat transfer, lower energy consumption, reduced downtime, and extended equipment life. The solutions are customized to each system based on water analysis, operational requirements, and industry standards.

What are Cycles of Concentration (COC) in cooling towers, and why are they critical to system performance?

Cycles of Concentration (COC) represent the ratio of dissolved solids in the circulating cooling water to those in the makeup water. A higher COC means water is being reused more effectively before blowdown, improving water conservation and chemical efficiency. However, if COC exceeds the system’s scaling or corrosion limits, it leads to calcium carbonate deposition, silica scaling, and concentration of corrosive ions (chloride, sulfate).

HydroGuard optimizes COC by:

  • Analyzing makeup and circulating water chemistry to determine the safe concentration ratio based on Langelier Saturation Index (LSI) and Ryznar Stability Index (RSI).
  • Implementing automated bleed and Hydroguard`s Automation chemical dosing controller allow real time Monitoring and maintaining conductivity within set parameters.
  • Adjusting antiscalant and dispersant dosing to safely operate at higher COC, reducing blowdown volume and water cost.

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