Case Studies

On every project NovoLabs undertakes, our most important objective is to relate with clients and understand their core necessities and goals. Below are some case studies showing the results we have achieved - take a look, and get in touch to learn more.

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Case study 1: The Manawatu District Council

Supercritical UV delivers without the need for existing chemical pre-treatment at Feilding

Feilding wastewater treatment plant treats a mix of domestic and industrial wastewaters. Disinfection is currently provided by a traditional channel flow, submerged bulb, UV system which needs the water to be of a high clarity for effective treatment. With the large amount of industrial trade waste in the flow, hundreds of thousands of dollars are spent each year on chemical treatment to improve the wastewater clarity prior to entering the existing UV system.

In comparison, one of the key advantages of the patent pending supercritical UV technology is that it can effectively operate in low clarity liquids. Through onsite trials at the Feilding plant, NovoLabs have shown that supercritical UV can achieve E. coli concentrations below Feilding’s irrigation consent limit of 1,000 MPN/100mL without the need for any chemical additions.
Not only would this have significant cost savings for Feilding rate payers, it also allows valuable nutrients to be recycled back to pasture where they belong, instead of being locked up in a chemical sludge that needs disposal.
Saving costs and recycling nutrients, a great double benefit of the SCUV technology!


Case study 2: Cedenco Foods

NovoLabs supercritical UV system offers new disinfection options for industrial wastewater

Cedenco foods, a large food processing plant in Gisborne, are required to reduce their enterococci concentration before discharging into the council trade waste system. They are currently using a polymer with clarification to remove solids which produces a liquid with a UV transmittance of only 0.5%, massively below what traditional UV systems would contemplate treating. Even in this extreme low UVT industrial wastewater, on average a 4.8 log reduction was achieved using the supercritical UV device, reducing the enterococci concentration from roughly 800 million MPN/100mL to 12 thousand MPN/100mL (99.9988% removal).

Further improvement upstream to reduce the solids concentration prior to UV allowed the SCUV device to achieve enterococci concentrations of less than 800 MPN/100mL in a UVT typically less than 1%!

Check out the synopsis from our presentation co-presented with the Project Engineer from Cedenco, Mauro Negri,  at Techweek Tairāwhiti:

And the presentation: