Advanced treatment for impaired water supplies: when advanced oxidation systems are the best option

As drought becomes pervasive around the world, many water suppliers are turning to water supplies once avoided – contaminated surface waters and groundwaters and wastewater. These water supplies are now a valuable part of a sustainable water supply; however, advanced treatment with advanced oxidation processes (AOPs) is typically needed to address trace contaminants in these supplies. This paper will address the following questions: 1) What is the best AOP technology for a given application? 2) Are there oxidation byproducts of concern? 3) What is the best peroxide quenching method? 4) How cost competitive are AOPs?

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Transformation products of pharmaceuticals in surface waters and wastewater formed during photolysis and advanced oxidation processes – Degradation, elucidation of byproducts and assessment of their biological potency

Chemosphere ◽

10.1016/j.chemosphere.2011.06.082 ◽

2011 ◽

Vol 85 (5) ◽

pp. 693-709 ◽

Cited By ~ 305

Author(s):

D. Fatta-Kassinos ◽

M.I. Vasquez ◽

K. Kümmerer

Keyword(s):

Surface Waters ◽

Advanced Oxidation Processes ◽

Advanced Oxidation ◽

Transformation Products ◽

Oxidation Processes ◽

Biological Potency

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Impacts of Advanced Treatment on Climate Change — Evaluating the Carbon Footprint of Membrane Filtration and Advanced Oxidation Processes for Water Reuse Treatment

Proceedings of the Water Environment Federation ◽

10.2175/193864711802721659 ◽

2011 ◽

Vol 2011 (13) ◽

pp. 3502-3515

Author(s):

Zuhal Öztürk ◽

Dennis J. Greene ◽

Sandeep Sathyamoorthy ◽

Brian Stitt

Keyword(s):

Climate Change ◽

Carbon Footprint ◽

Water Reuse ◽

Membrane Filtration ◽

Advanced Oxidation Processes ◽

Advanced Oxidation ◽

Advanced Treatment ◽

Oxidation Processes

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Advanced treatment of dyehouse effluents by Fe(II) and Mn(II)-catalyzed ozonation and the H2O2/O3 process

Water Science & Technology ◽

10.2166/wst.2000.0284 ◽

2000 ◽

Vol 42 (1-2) ◽

pp. 13-18 ◽

Cited By ~ 13

Author(s):

I. Arslan ◽

I. Akmehmet Balcioglu ◽

T. Tuhkanen

Keyword(s):

Organic Carbon ◽

Chemical Oxygen Demand ◽

Advanced Oxidation Processes ◽

Treatment Time ◽

Effective Means ◽

Oxygen Demand ◽

Advanced Oxidation ◽

Oxidation Products ◽

Advanced Treatment ◽

Oxidation Processes

Treatment of synthetic dyehouse effluent containing six reactive dyestuffs and their assisting chemicals by O3/Fe(II), O3/Mn(II), and O3/H2O2 advanced oxidation processes was investigated. All oxidation processes were capable of completely decolourizing the wastewater within 30 min. Decolourization proceeded fastest by the O3/Mn(II) process, whereas the O3/H2O2 combination was more efficient in the removal of DOC (Dissolved Organic carbon) and UV254nm which were 11 and 53%, respectively, for one hour treatment time. Application of Fe(II)-catalyzed ozonation provided an effective means of removing colour and COD (Chemical Oxygen Demand) by a five- and nine-fold enhancement, respectively, compared with conventional coagulation applied at the same coagulant doses. Formation of toxic oxidation products was not observed during the course of treatment with all investigated advanced oxidation processes.

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