Present investigation analyzes various water quality parameters after TiO2 assisted photocatalytic degradation of Giemsa Dye in aqueous suspension. Significant changes were noted in alkalinity, turbidity, hardness, nitrate, calcium ion concentration, chloride ion concentration, magnesium ion concentration, COD, BOD, sulfate ion concentration, temperature and pH. At pH 2 investigated parameters were found within the WHO standards of drinking water. Environmental risk assessment reveals that beside photocatalytic treatment, waste disposal methodology still needs to be accompanied with secondary treatment of water.
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Leena Bharadwaj (2025) studied this question.
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