TITLE:
Waste Water Treatment in Direct Borohydride Fuel Cell with Bipolar Membrane
AUTHORS:
Paata Nikoleishvili, Gigla Tsurtsumia, Valentina Kveselava, Giorgi Gorelishvili, Rusudan Kurtanidze, Nana Koiava, Izolda Kakhniashvili, Davit Sharabidze
KEYWORDS:
Direct Borohydride Fuel Cell, Bipolar Membrane, Hydrogen Peroxide, Electro-Fenton, Photo-Electro-Fenton, Water Treatment
JOURNAL NAME:
Open Journal of Ecology,
Vol.5 No.2,
February
5,
2015
ABSTRACT: It was established that application of bipolar membrane in a direct borohydride
fuel cell (DBFC) with H2O2 co-generation enabled to keep constant pH in catholyte within 2.5 - 3.2 limits,
which allowed us to carry out treatment of water polluted by organic compounds in
fuel cell catholyte. Treatment of water was carried
out by electro-Fenton and photo-electro-Fenton methods. With the view of efficiency, photo-electro-Fenton method of
treatment was the most efficient, which enabled to decrease COD of catholytes
containing (in each case) phenol, valsaren, 400 g/L dymethoate (BI-58) and
valsaciper from 500 ppm to 30, 11, 9 and 3 ppm, respectively after 180 min
treatment. By increasing the catholyte temperature from 20℃to 40℃in the same period, phenol COD fell to 5 ppm.