In this study, treatment of denim product
processing wastewaters by hybrid electrocoagulation (EC) and electrooxidation
(EOx) process were investigated. Effects of operating parameters such as pH,
current density and electrolysis time on removal of COD (Chemical Oxygen
Demand) and TDS (Total Dissolved Solids) were determined. EC process with Al
electrodes where the pH value was 7,48,
current density was 120 A/m2, and electrolysis time was 49,5 min
resulted in > 65 % COD and 51 % TDS
removal. At the same conditions removal efficiencies of EOx process for COD and
TDS with Ti/SS electrodes were found to be > % 70 and % 45, respectively. The color removal efficiency
of EC / EO hybrid process at optimum conditions was obtained as 84 % (436
nm), 93 % (525 nm), 97 % (620 nm), while the energy consumption of EC and EO
process was 14,26 kWh/ m3 and 22 kWh/m3 respectively. The coefficient of determination (R2) value
for removal of COD and TDS in the EC and EOx reactor, was found to be 0.99 and
0.97, and R2Adj value was found to be 0,96 and 0,92,
respectively. In
addition, the results of the statistical analysis indicated that the R2 and R2adj
values were close to 1 indicates that the experimental results and statistical
inferences were compatible and the Box-Behnken statistical design was effective
in order to determine the effects of process parameters.
Electrocoagulation Electrooxidation Denim product processing wastewater Al electrode Titanium electrode Stainless steel electrode
Elektrokoagülasyon Elektrooksidasyon Denim ürün üretim atıksuyu Al elektrot Titanyum elektrot Paslanmaz çelik elektrot
Birincil Dil | Türkçe |
---|---|
Konular | Mühendislik |
Bölüm | Makaleler |
Yazarlar | |
Yayımlanma Tarihi | 25 Aralık 2019 |
Yayımlandığı Sayı | Yıl 2019 |
e-ISSN :1308-6529
Linking ISSN (ISSN-L): 1300-7688
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