Water Treatment
Raw water like surface water, ground water is requiring pre- treatment and post treatment before sued for different industry processes and applications. Disinfection is required to remove microbiological contamination from water.
Purita offers following products in the area of disinfection of raw water;
- TERSUS® Chlorine Dioxide [CLO2] System
- TERSUS® Electro-chlorination [ECP] System
- TERSUS® UV System
- TERSUS® Ozone System
The preferred technologies applied are Chlorine Dioxide / Electro-chlorination in Pre-treatment. In the pre- treatment step, they are usually added post clariflocculator / in clarified water to optimize the consumption and provide effective disinfection of water at the pre-filter level ensuring reliable residual levels in ensuring down-stream filters are free of algae growth and water hygiene is maintained up to filtered water outlet water i.e. potable water for further use.
Similarly, all the above-stated technologies are preferred for the Post-Treatment of final filtered water.
Advantages of Chlorine Dioxide [ClO2] Water Treatment
- ClO2 is a broad-spectrum micro biocide effective over a wide pH range.
- ClO2 provides residual disinfectant in water distribution system.
- ClO2 Oxidizes iron and manganese compounds.
- ClO2 removes colour, odour.
- ClO2 does not hydrolyse in water to form hypochlorous acid (HOCL) like Chlorine.
- ClO2 imparts no taste, color, odour or corrosion at those concentrations used for disinfection.
- ClO2 is effective against all microorganisms including algae, bacteria, bacterial spores, fungi, protozoa and viruses.
Waste Water Treatment
The purpose of Wastewater treatment is to provide a final polishing treatment stage prior to discharge of effluent OR reuse of the wastewater after further processing into a Tertiary Wastewater Treatment plant. In both the condition, it is essential to offer final polishing treatment of disinfection using following technologies;
Purita offers following products in the area of disinfection of raw water;
- TERSUS® Chlorine Dioxide [CLO2] System
- TERSUS® Electro-chlorination [ECP] System
- TERSUS® UV System
- TERSUS® Ozone System
- TERSUS® Advance Oxidation Processes [AOPs]
The wastewater treatment plants typically discharge effluent to water bodies such as lakes, rivers and
The main objective of disinfection is to reduce the number of waterborne pathogens to safe levels, and thereby lowering the risk of exposing the public to infectious diseases.
TERSUS® Advance Oxidation Processes [AOPs] is extremely effective technology of using combination of Disinfection Products together i.e. UV system and Ozone to attain oxidization in specific applications like reduction of TOC and Organic contamination It has several distinct advantages compared to other disinfection technologies’ use in Wastewater / Tertiary treatment.
Advantages of Chlorine Dioxide in Wastewater
- Chlorine dioxide is a broad-spectrum micro biocide effective over a wide pH range.
- Chlorine dioxide is non-reactive with ammonia and most nitrogen containing compounds, and thus is effective at lower dose levels than chlorine.
- It destroys phenolics, simple cyanides and sulphides by oxidation.
- Chlorine dioxide will oxidize sulphides without the formation of colloidal sulphur.
- Oxidize iron and manganese compounds.
- Reduces SRB.
- Remove Colour, odour.
