Oxidation
Use chemical oxidation for the non-biodegradable inert COD.
At Nippon Gases we are called “The Gas Professionals” for a reason, and it’s because we’ll be able to solve any doubt.
Ozone to increase organic matter removal
Ozonation is an effective and efficient method to eliminate inert organic matter that can not be eliminated biologically (recalcitrant, refractory). With a tertiary treatment of ozonation it’s possible to reduce the COD of the effluent to comply with the current legislation, or to reach the water quality parameter values for industrial water reuse.
Ozone
Estimate and minimize de O3 dosage through experimental testing.
Color removal
Tertiary treatment advanced oxidation removes color from the treated water.
Nippon Gases carries out specific studies to analyse the technical and economic viability of ozonation in industrial water.
WaterSan Simulate®
Data analysis and simulation.
WaterSan Lab®
Ozonation study
Biodegradability and Respirometry tests
Experimental analysis in pilot plants.
Ozonation study onsite
Ozonation study in an onsite industrial pilot plant.
Latest Company News
22.10.2026
Nippon Sanso Holdings Group and MIMIT Sign Agreement on Electronics and Semiconductor Investments
Rome, 22nd of October 2026. Italy and Japan are strengthening their industrial cooperation to foster new investments in semiconductors, electronics,…
23.09.2026
Nippon Sanso in Europe launches its 2026 Sustainability Report, highlighting strong ESG performance and significant environmental results
The company reports decreases of 44% in water consumption, 24% in waste generation and over 40% in GHG emissions. Madrid.…
17.09.2026
Nippon Sanso Italia releases the Sustainability Report 2026
For the seventh consecutive year, Nippon Sanso Italia has published its Sustainability Report, covering the financial year ending 31 March…