Application of a ceramic membrane contacting process for ozone and peroxone treatment of micropollutant contaminated surface water

2018 ◽  
Vol 358 ◽  
pp. 129-135 ◽  
Author(s):  
Stylianos K. Stylianou ◽  
Ioannis A. Katsoyiannis ◽  
Manassis Mitrakas ◽  
Anastasios I. Zouboulis
Membranes ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 213
Author(s):  
Stéphane Venne ◽  
Onita D. Basu ◽  
Benoit Barbeau

Membrane fouling in surface waters impacted by cyanobacteria is currently poorly controlled and results in high operating costs. A chemically enhanced backwash (CEB) is one possible strategy to mitigate cyanobacteria fouling. This research investigates the potential of using an ozone CEB to control the fouling caused by Microcystis aeruginosa in filtered surface water on a ceramic ultrafiltration membrane. Batch ozonation tests and dead-end, continuous flow experiments were conducted with ozone doses between 0 and 19 mg O3/mg carbon. In all tests, the ozone was shown to react more rapidly with the filtered surface water foulants than with cyanobacteria. In addition, the ozone CEB demonstrated an improved mitigation of irreversible fouling over 2 cycles versus a single CEB cycle; indicating that the ozone CEB functioned better as the cake layer developed. Ozone likely weakens the compressible cake layer formed by cyanobacteria on the membrane surface during filtration, which then becomes more hydraulically reversible. In fact, the ozone CEB reduced the fouling resistance by 35% more than the hydraulic backwash when the cake was more compressed.


2013 ◽  
Vol 51 (25-27) ◽  
pp. 5319-5326 ◽  
Author(s):  
Shengji Xia ◽  
Yumin Zhou ◽  
Rui Ma ◽  
Yijun Xie ◽  
Jianwei Chen

2019 ◽  
Vol 365 ◽  
pp. 334-343 ◽  
Author(s):  
Xing Du ◽  
Kaiming Zhang ◽  
Binghan Xie ◽  
Jing Zhao ◽  
Xiaoxiang Cheng ◽  
...  

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