Water Treatment Chemicals

Raw water


  Whether you are making potable water or water for plant processes, optimizing the performance of treatment chemicals and equipment can dramatically minimise costs and deliver maximum return on investment. We provide creative, cost-effective solutions to help you meet your most stringent water quality requirements. 

 Nalco raw water clarification programs are designed to enhance the removal of total suspended solids (TSS), colour and total organic carbon (TOC). We help you minimise sludge volume to achieve environmental compliance. 

Reverse Osmosis


  Improve permeate quality and meet production demands. An effective reverse osmosis (RO) chemical programme consisting of antiscalants, cleaners and biocides, combined with the right pretreatment processes and chemistry, will enhance system performance while reducing energy and water costs. Adding our cleaning programme and appropriate maintenance provides substantial returns by extending membrane life, resulting in less downtime and lower total cost of operations.   



 Sludge dewatering is the removal of water from wastewater treatment solids slurry (sludge) in quantities greater than what is achieved by thickening. Mechanical processes and land dewatering techniques are detailed to aid in selecting the most appropriate method for the sludge under consideration. 

One major reason for dewatering is to decrease the capital and operating costs for final sludge disposal. Dewatering sludge solids from a 1 to a 20 percent solids concentration reduces volume by three-fourths and generates a cake-like material that has a non-fluid consistency.  

Boiler water


  Nalco boiler water chemistry is designed to prevent corrosion and scale in all areas of the steam system: pre-boiler corrosion, internal treatment scale and corrosion, and condensate corrosion. We couple our industry-leading chemistries with automated monitoring and control. 

 3D TRASAR™ Technology for Boilers is a technology platform that completely integrates on-line monitoring and automation technology with the most innovative, industry-accepted and sound chemistries on the market. Ongoing research continually improves our ability to deploy stable products designed for use in your specific application. Products containing TRASAR Technology provide the un-paralleled ability to accurately measure and control dosage rates, reducing system corrosivity. 

Cooling water


  Scale, corrosion and microbial fouling threaten your cooling system every day. Combat them with a cost-effective chemical programme designed to your unique circumstances. Nalco Champion provides the proven, innovative solutions you have come to expect from a world leader in water chemistry. Our patented 3D TRASAR™ line of products allows you to operate at stress levels others cannot touch. 

 3D TRASAR Technology is evolving to meet ever more challenging customer needs. The innovation of 3D TRASAR Technology is already soundly embraced worldwide for cooling tower chemicals program.



 Our Nalco specialists perform a comprehensive evaluation of your wastewater treatment plant before developing your chemical treatment programme. With an understanding of your system’s capabilities and limitations, we will choose a custom treatment programme that will meet your wastewater treatment plant goals and objectives. 


Our Core Shell™ polymers are proprietary, high molecular weight, high-active latex flocculants specifically designed for primary and secondary wastewater treatment applications and sludge dewatering applications, including both oily sludge and biological sludge. 

NALCO cooling tower chemicals

NALCO Institutional (pdf)


Nalco Potable Water Disinfection program (pdf)