Removal of Pharmaceutical and Personal Care Products from Reverse Osmosis Retentate Using Advanced Oxidation Processes

2011 ◽  
Vol 45 (8) ◽  
pp. 3665-3671 ◽  
Author(s):  
Sihem Ben Abdelmelek ◽  
John Greaves ◽  
Kenneth P. Ishida ◽  
William J. Cooper ◽  
Weihua Song
2017 ◽  
Vol 5 (24) ◽  
pp. 12001-12014 ◽  
Author(s):  
Yin Xu ◽  
Tingjiao Liu ◽  
Ying Zhang ◽  
Fei Ge ◽  
Rachel M. Steel ◽  
...  

Recent progresses in PPCP removal technologies are summarized, especially on adsorption and advanced oxidation processes using various materials.


2013 ◽  
Vol 12 (3) ◽  
pp. 475-481 ◽  
Author(s):  
Tariq Mahmood ◽  
Muhammad Saif Ur Rehman ◽  
Ameena Saif ◽  
Audil Rashid ◽  
Raza Ahmad ◽  
...  

Water ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 1043 ◽  
Author(s):  
Khanh Chau Dao ◽  
Chih-Chi Yang ◽  
Ku-Fan Chen ◽  
Yung-Pin Tsai

Due to various potential toxicological threats to living organisms even at low concentrations, pharmaceuticals and personal care products in natural water are seen as an emerging environmental issue. The low efficiency of removal of pharmaceuticals and personal care products by conventional wastewater treatment plants calls for more efficient technology. Research on advanced oxidation processes has recently become a hot topic as it has been shown that these technologies can effectively oxidize most organic contaminants to inorganic carbon through mineralization. Among the advanced oxidation processes, the electrochemical advanced oxidation processes and, in general, electrochemical oxidation or anodic oxidation have shown good prospects at the lab-scale for the elimination of contamination caused by the presence of residual pharmaceuticals and personal care products in aqueous systems. This paper reviewed the effectiveness of electrochemical oxidation in removing pharmaceuticals and personal care products from liquid solutions, alone or in combination with other treatment processes, in the last 10 years. Reactor designs and configurations, electrode materials, operational factors (initial concentration, supporting electrolytes, current density, temperature, pH, stirring rate, electrode spacing, and fluid velocity) were also investigated.


Materials ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 2785
Author(s):  
Aviv Kaplan ◽  
Hadas Mamane ◽  
Yaal Lester ◽  
Dror Avisar

Advanced technologies, such as reverse osmosis (RO), allow the reuse of treated wastewater for direct or indirect potable use. However, even highly efficient RO systems produce ~10–15% highly contaminated concentrate as a byproduct. This wastewater RO concentrate (WWROC) is very rich in metal ions, nutrients, and hard-to-degrade trace organic compounds (TOrCs), such as pharmaceuticals, plasticizers, flame retardants, and detergents, which must be treated before disposal. WWROC could be up to 10 times more concentrated than secondary effluent. We examined the efficiency of several advanced oxidation processes (AOPs) on TOrC removal from a two-stage WWROC matrix in a pilot wastewater-treatment facility. WWROC ozonation or UV irradiation, with H2O2 addition, demonstrated efficient removal of TOrCs, varying between 21% and over 99% degradation, and indicating that radical oxidation (by HO·) is the dominant mechanism. However, AOPs are not sufficient to fully treat the WWROC, and thus, additional procedures are required to decrease metal ion and nutrient concentrations. Further biological treatment post-AOP is also highly important, to eliminate the degradable organic molecules obtained from the AOP.


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