Decolourization of remazol black-5 textile dyes using moving bed bio-film reactor

4th International Seminar on Sustainable Urban Development

地球科学;经济学

Pratiwi, R.^1 ; Notodarmojo, S.^2 ; Helmy, Q.^2,3

Environmental Engineering Department, Faculty of Civil and Environmental 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 process;    COD removal efficiency;    Continuous reactors;    Decolourization;    MBBR;    Moving bed biofilm reactors;    Pretreatment process;    Removal efficiencies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/106/1/012089/pdf
DOI  :  10.1088/1755-1315/106/1/012089

来源: IOP

【 摘 要 】

The desizing and dyeing processes in the textile industries produces wastewaster containing high concentration of organic matter and colour, so it needs treatment before released to environment. In this research, removal of azo dye (Remazol Black 5/RB 5) and organic as COD was performed using Moving Bed Biofilm Reactor (MBBR). MBBR is biological treatment process with attached growth media system that can increase removal of organic matter in textile wastewater. The effectiveness of ozonation as pre-treatment process to increase the removal efficiency in MBBR was studied. The results showed that in MBBR batch system with detention time of 1 hour, pre-treatment with ozonation prior to MBBR process able to increase the colour removal efficiency of up to 86.74%. While on the reactor without ozone pre-treatment, the colour removal efficiency of up to 68.6% was achieved. From the continuous reactor experiments found that both colour and COD removal efficiency depends on time detention of RB-5 dyes in the system. The higher of detention time, the higher of colour and COD removal efficiency. It was found that optimum removal of colour and COD was achieved in 24 hour detention time with its efficiency of 96.9% and 89.13%, respectively.