Treatment of textile waste water using natural catalyst (chitosan and microorganism)
- Journal of Textile Engineering & Fashion Technology
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AKM Nayab Ul Hossain,1 Salma Katun Sela,2 Soumen Saha,1 Ayshi Das,1 SM Farhana Iqbal,3 Mohammad Naim Hassan1
Department of Textile Engineering, Khulna University of Engineering & Technology, Bangladesh - Salma Katun Sela, Department of Textile Engineering, Jessore University of Science & Technology, Bangladesh
- Soumen Saha, Department of Textile Engineering, Khulna University of Engineering & Technology, Bangladesh
- Ayshi Das, Department of Textile Engineering, Khulna University of Engineering & Technology, Bangladesh
- SM Farhana Iqbal, Assistant Professor, Yarn Engineering Department, Bangladesh University of Textiles, Bangladesh
- Mohammad Naim Hassan, Department of Textile Engineering, Khulna University of Engineering & Technology, Bangladesh
Abstract
The study investigates the performance of chitosan and microorganism towards treatment of textile wastewater by using aeration & flocculation process. Chitosan is found from chitin by deacetylation. Flocculation and the process are done using Jar test experiment. The effect of dosage, reduction of COD, reduction of BOD and color of textile wastewater is studied. The results obtained found that chitosan is very effective for reduction of COD, BOD and color. The best condition for COD and BOD removal is achieved at 0.1- 0.2g dosage, pH 4.17 and 30minutes of settling time. Under this condition, about 40% of COD and 43% of BOD is removed, respectively. However, the results obtained using microorganism also good. Microorganism is able to remove both COD and BOD of the wastewater but COD is slightly higher than the acceptable range.
Keywords
Chitin, Chitosan, Textile wastewater, Microorganism, Flocculation, Consumers, Dyeing, Chemical oxygen demand, Photo degradation, Electrolysis, Adsorption, Chemical oxidation, Precipitation, Coagulation, Aerobic biological process, Metabolic reactions
