Study on the zeta potential effect of Artocarpus heterophyllus natural-based coagulant in wastewater treatment

Priyatharishini, Mardarveran and N. M., Mohktar (2020) Study on the zeta potential effect of Artocarpus heterophyllus natural-based coagulant in wastewater treatment. In: IOP Conference Series: Materials Science and Engineering, 5th International Conference of Chemical Engineering and Industrial Biotechnology (ICCEIB 2020) , 9-11 August 2020 , Kuala Lumpur, Malaysia. pp. 1-10., 991 (012094). ISSN 1757-8981 (Print), 1757-899X (Online)

Pdf (Open access)
Study on the zeta potential effect of artocarpus.pdf
Available under License Creative Commons Attribution.

Download (490kB) | Preview


The application of chemical coagulants which is damaging to environment and human health has triggered to the exploration of new coagulants from natural based sources. This study emphasized on the performance of a treatment process to remove particles in the synthetic domestic wastewater by coagulation using Artocarpus heterophyllus (jackfruit) peel extract and evaluation of zeta potential (ζ). The measurement of zeta potential which is the criteria defining the electrostatic interaction between pollutants and natural coagulant agent is used in proposing mechanism of coagulation. The jar test experiment was carried out and the treated wastewater was analysed to determine reduction in turbidity, BOD, COD and TSS. The coagulant extracts were characterized in terms of surface charge. The best operating conditions were: pH 2 and dosage 60 mg/L. The corresponding removal efficiencies for turbidity, TSS, COD and BOD were 80 %, 70 %, 46 % and 20 % respectively. The measured zeta potential of the coagulant was -25.2 mV at its original pH, 6.95. On the other hand, the surface charge of synthetic wastewater was positive at pH 2 and later turned to be negative as the pH is increased up to pH 12. This best describes that jackfruit peel coagulant possessed the characteristic of anionic polyelectrolytes which involves bridging mechanism. The results obtained here suggest that coagulation using Artocarpus heterophyllus peel extract can be employed as an effective and low-cost preliminary technique in wastewater treatment process.

Item Type: Conference or Workshop Item (Lecture)
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Wastewater; Coagulation; Zeta potential; Artocarpus heterophyllus; Turbidity
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Faculty/Division: Institute of Postgraduate Studies
Centre of Excellence: Earth Resources & Sustainability Centre (ERAS)
Faculty of Civil Engineering Technology
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 17 May 2021 08:21
Last Modified: 17 May 2021 08:21
Download Statistic: View Download Statistics

Actions (login required)

View Item View Item