Textile wastewater treatment: colour and COD removal of reactive black-5 by ozonation

4th International Seminar on Sustainable Urban Development

地球科学;经济学

Suryawan, I.W.K.^1 ; Helmy, Q.^2,3 ; Notodarmojo, S.^1,2

Environmental Engineering Department, Faculty of Civil and Enviromental Engineering, Institut Teknologi Bandung, Bandung, Indonesia^1

Water and Wastewater Engineering Research Group, Environmental Engineering Department, Institut Teknologi Bandung, Bandung, Indonesia^2

Bioscience and Biotechnology Research Center, Institut Teknologi Bandung, Bandung, Indonesia^3

关键词: Biological treatment methods;    COD removal efficiency;    Physical-chemical treatment;    Reactive black 5;    Removal efficiencies;    Research results;    Textile wastewater;    Textile wastewater treatment;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/106/1/012102/pdf
DOI  :  10.1088/1755-1315/106/1/012102

来源: IOP

【 摘 要 】

Textile industries produced a large amount of highly coloured wastewater containing variety of dyes in different concentrations. Due to the high concentration of organics in the effluents and the higher stability of modern synthetic dyes, the conventional biological treatment methods are ineffective for the complete colour removal and degradation of organics and dyes. On the other hand, physical-chemical treatment are not destructive, mainly just concentrate and separate the pollutants phases. This research paper investigates the removal of colour and chemical oxygen demand/COD from textile wastewater using ozone treatment. Varied ozone dosages of 1.16; 3.81; 18.79; and 40.88 mg/minute were used in the experiment. Varied wastewater containing Reactive Black 5 (RB-5) concentrations of 40 mg/L, 100 mg/L were also applied. Research result showed the highest colour removal efficiency of 96.9 % was achieved after 5 hours incubation time, while the highest COD removal efficiency of 77.5% was achieved after 2 hours incubation time.