Treatment of Wastewater by Ozone Produced in Dielectric Barrier Discharge

Table 1

Test parameters and their test methods.

Parameters	Unit	Test methods
pH	—	pH meter
Conductivity	μs/cm	Conductivity meter
TDS	mg/L	Calibrated EC-TDS meter
Nitrate	mg/L	UV Vis spectrophotometer-304 nm
COD	mg/L	Titration using potassium dichromate
DO	mg/L	DO meter
Fecal coliform	CFU/100 mL	Membrane filtration method
Ferrous	mg/L	UV Vis spectrophotometer-515 nm
Chromium	mg/L	Atomic absorption spectrophotometer
Cadmium	mg/L	Atomic absorption spectrophotometer
Lead	mg/L	Atomic absorption spectrophotometer