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 the CO2 dosage through experimental testing.
Color removal
Tertiary treatment advanced oxidation removes color from the treated water.
We carrie 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
31.03.2026
Nippon Gases changes its company name to Nippon Sanso on April 1st 2026
Nippon Gases, the European subsidiary of Nippon Sanso Holdings Corporation (referred to as “The Group”), will officially change its name…
03.03.2026
Oximesa Acquires Esteve Teijin Healthcare And Strengthens Its Home Respiratory Therapy Services Across The Iberian Peninsula
Nippon Sanso Holdings Corporation (NSHD), through its European subsidiary Oximesa, has acquired Esteve Teijin Healthcare (ETH), in a move that reinforces its…
24.09.2025
Nippon Gases to rename as Nippon Sanso from April 1st 2026
Nippon Gases, the European subsidiary of Nippon Sanso Holdings Corporation, announces that, starting April 1st 2026, the company will operate…