Rapid and efficient treatment of wastewater from fish sauce‐manufacturing factories by using the electrochemical oxidation process | Zendy

Minh Bui Quang | Zendy; Long Nguyen Nghia | Zendy; Van Hien Pham | Zendy; Dung Nguyen Tuan | Zendy

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Rapid and efficient treatment of wastewater from fish sauce‐manufacturing factories by using the electrochemical oxidation process

Author(s) -

Minh Bui Quang,

Long Nguyen Nghia,

Van Hien Pham,

Dung Nguyen Tuan

Publication year - 2019

Publication title -

vietnam journal of chemistry

Language(s) - English

Resource type - Journals

eISSN - 2572-8288

pISSN - 0866-7144

DOI - 10.1002/vjch.201900009

Subject(s) - cathode , electrolysis , electrochemistry , anode , materials science , wastewater , ammonia , copper , current density , electrode , pulp and paper industry , chemical engineering , metallurgy , chemistry , environmental engineering , environmental science , organic chemistry , engineering , physics , quantum mechanics , electrolyte

Wastewater from fish sauce‐manufacturing Phung Hung Ltd. Company with high salinity has been treated applying the electrochemical oxidation process, using a Ti/CeO 2 ‐Pt anode and different cathodes: copper, stainless steel and copper‐zinc alloy. The pH value and the applied current density have been also examinated. All three cathodes can be used for the organic pollutant electro‐oxidation, however Cu/Zn cathode exhibits a higher efficiency on by‐product nitrate removal. The investigation on the pH and current density showed that the electro‐oxidation process was favorably occurred at pH8 and 30 mA/cm 2 . After 60 min of electrolysis, ammonia, total nitrogen and COD can be discharged into the A column level of QCVN/11‐2015/BTNMT.

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