Baharim, Aida Baizura and Radin Mohamed, Radin Maya Saphira and Ali Siyal, Ahmer and Misrom, Norliza and Hairuddin, Nur Diyana and Wan Mohamed, Wan Afnizan (2025) Dicyandiamide-Formaldehyde (Dcd-F) Resin For Pollutants Removal From Textile Wastewater. Journal of Engineering Science and Technology, 20 (3). 739 -750.
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Abstract
This study aims to evaluate the efficiency of dicyandiamide-formaldehyde (DCD-F) resin as a coagulant for treating textile wastewater. Studies on the use of DCD-F resin for textile wastewater treatment under optimal conditions are still lacking. Coagulation and flocculation experiments were conducted using a jar test to assess the removal of colour, chemical oxygen demand (COD), total suspended solids (TSS), and turbidity under varying conditions of pH (5.5 to 9.5), resin dosage (50 to 100 ppm), mixing speeds (rapid: 120 to 180 rpm, slow: 30 to 45 rpm), and retention times (60 to 180 minutes). For sample A, the study identified optimal removal efficiencies of 95.96% for colour, 52.05% for COD, 98.5% for TSS, and 99.28% for turbidity at a resin dosage of 100 ppm, a pH of 7, a rapid mixing speed of 150 rpm, and a retention time of 180 minutes. However, for sample B, which had significantly higher pollution levels with a COD concentration of 1315 mg/L and a colour value of 2444 ADMI, DCD-F resin alone was insufficient to achieve optimal treatment efficiency, indicating the need for additional coagulants or treatment steps. A cost-benefit analysis showed that treating textile wastewater with DCD-F resin at the optimal conditions for sample A is highly economical. costs RM 18 per month, making it more economical than aluminum sulfate and ferric chloride.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Chemical oxygen demand, Decolouring agent, Textile wastewater, Total suspended solid, Turbidity |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering |
| Divisions: | Faculty of Civil Engineering and Built Environment > FKAAB |
| Depositing User: | Mr. Mohamad Zulkhibri Rahmad |
| Date Deposited: | 31 Aug 2025 10:01 |
| Last Modified: | 31 Aug 2025 10:01 |
| URI: | http://eprints.uthm.edu.my/id/eprint/13166 |
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