A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Treatment of a Tannery Chrome Effluent by Electrocoagulation
The tanning industry is recognized as a major sector producing severe industrial pollution worldwide. Tannery wastewater is challenging to treat due to its wide variety and many pollutants in high concentrations. Chemical coagulation has been used for many years to extract soluble metal species and colloidal suspensions from tannery wastewater. An emerging technique that does the same task more affordably is electrocoagulation. This research has been conducted to determine the most effective electrode material for electrocoagulation. First, nine parameters were tested to characterize the tannery chrome effluent that was collected from Savar Tannery Estate. The parameters included COD, BOD, TS, TDS, TSS, pH, EC, and color. Three types of electrodes were used: mild steel, stainless steel, and aluminum. To examine how the number of electrodes affected the course of treatment, the number of electrodes was also varied. Six batches of the tannery chrome effluent were treated, with a different electrode configuration used in each batch. Electrocoagulation was conducted for 90 min for each treatment process, followed by 30 min of settling time. Every treated wastewater sample underwent another set of parameters analysis. The best electrode material for removing chromium has been found to be stainless steel (99.6%). The aluminum electrode has been found to be the most effective for TSS, COD, and BOD removal (65.2%, 52.8%, and 18.8%, respectively). However, regarding overall pollutant removal, mild steel worked the best among the three electrodes (i.e., color, chromium, TSS, COD, and BOD removals were 97.9%, 99.2%, 59.8%, 49.8%, and 21.9%, respectively).
Treatment of a Tannery Chrome Effluent by Electrocoagulation
The tanning industry is recognized as a major sector producing severe industrial pollution worldwide. Tannery wastewater is challenging to treat due to its wide variety and many pollutants in high concentrations. Chemical coagulation has been used for many years to extract soluble metal species and colloidal suspensions from tannery wastewater. An emerging technique that does the same task more affordably is electrocoagulation. This research has been conducted to determine the most effective electrode material for electrocoagulation. First, nine parameters were tested to characterize the tannery chrome effluent that was collected from Savar Tannery Estate. The parameters included COD, BOD, TS, TDS, TSS, pH, EC, and color. Three types of electrodes were used: mild steel, stainless steel, and aluminum. To examine how the number of electrodes affected the course of treatment, the number of electrodes was also varied. Six batches of the tannery chrome effluent were treated, with a different electrode configuration used in each batch. Electrocoagulation was conducted for 90 min for each treatment process, followed by 30 min of settling time. Every treated wastewater sample underwent another set of parameters analysis. The best electrode material for removing chromium has been found to be stainless steel (99.6%). The aluminum electrode has been found to be the most effective for TSS, COD, and BOD removal (65.2%, 52.8%, and 18.8%, respectively). However, regarding overall pollutant removal, mild steel worked the best among the three electrodes (i.e., color, chromium, TSS, COD, and BOD removals were 97.9%, 99.2%, 59.8%, 49.8%, and 21.9%, respectively).
Treatment of a Tannery Chrome Effluent by Electrocoagulation
Lecture Notes in Civil Engineering
Alam, M. Shahria (editor) / Hasan, G. M. Jahid (editor) / Billah, A. H. M. Muntasir (editor) / Islam, Kamrul (editor) / Mamun, S. A. (author) / Shahidi, Saadat (author) / Mahmud, Akram (author) / Jalil, Md. Abdul (author)
International Conference on Advances in Civil Infrastructure and Construction Materials ; 2023 ; Dhaka, Bangladesh
2024-08-22
9 pages
Article/Chapter (Book)
Electronic Resource
English
Factors Influencing Electrocoagulation Treatment of UASB Reactor Effluent
| Springer Verlag | 2018
Utilization of Okra Gum for Treatment of Tannery Effluent
| British Library Online Contents | 2003
| DOAJ | 2020
Strategies for Chromium Bioremediation of Tannery Effluent
| Springer Verlag | 2012