ultraviolet advanced oxidation Articles
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The effects of ultraviolet/H2O2 advanced oxidation on the content and characteristics of groundwater natural organic matter
This work investigates the effects of ultraviolet (UV)/H2O2 advanced oxidation on the content and characteristics of natural organic matter (NOM) originating from two different groundwaters (3.03–9.69 mg/L total organic carbon (TOC), 2.71–4.31 Lmg−1m−1 specific ultraviolet absorbance (SUVA)). Application of UV irradiation resulted in a minor reduction in the total ...
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Degradation and changes in toxicity and biodegradability of tetracycline during ozone/ultraviolet-based advanced oxidation
Advanced oxidation processes (AOPs) composed of O3, H2O2 and ultraviolet (UV) were applied to degrade tetracycline (TC). Degradation efficiency was evaluated in terms of changes in absorbance (ABS) and total organic carbon (TOC). The change in biotoxicity was monitored with Escherichia coli and Vibrio fischeri. The improvement in biodegradability during oxidation was demonstrated through 5-day ...
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Response surface method for the optimisation of micropollutant removal in municipal wastewater treatment plant effluent with the UV/H2O2 advanced oxidation process
Experiments with the ultraviolet (UV)/H2O2 advanced oxidation process (AOP) were conducted to investigate the abatement of micropollutants in wastewater treatment plant effluent. The fluence and the starting concentration of H2O2 in a bench-scale batch reactor were varied according to response surface method (RSM) to examine their influence on the treatment efficiency. It was shown that the ...
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Effect of granular activated carbon type and age on quenching H2O2 residuals after UV/H2O2 drinking water treatment
Granular activated carbon (GAC) can be used to quench residual hydrogen peroxide (H2O2) after ultraviolet (UV)-H2O2 advanced oxidation processes in drinking water treatment. Bench- and pilot-scale studies examined the possible loss of GAC reactivity due to continuous exposure to natural water from a water treatment plant in both the presence and absence of H2O2. Six common types of GAC were ...
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Reverse Osmosis and Water Purification
From water reuse to desalination, reverse osmosis plays a key role in supplying fresh water where it’s needed Consumers may already know reverse osmosis (RO) from popular under-sink home water treatment systems, but RO is used in many applications and at many scales. Reverse osmosis can purify unusable water to the point where it’s virtually free of health risks and esthetic ...
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