Combination of Ozonation and Adsorption Using Granular Activated Carbon (GAC) for Tofu Industry Wastewater Treatment

Eva Fathul Karamah(1*), Ika Putri Adripratiwi(2), Linggar Anindita(3)

(1) Department of Chemical Engineering, Universitas Indonesia, Kampus UI, Depok 16424, Indonesia
(2) Department of Chemical Engineering, Universitas Indonesia, Kampus UI, Depok 16424, Indonesia
(3) Department of Chemical Engineering, Universitas Indonesia, Kampus UI, Depok 16424, Indonesia
(*) Corresponding Author


Tofu industry wastewater is one of the environmental pollutants that need more effective treatment. Ozonation and adsorption method is known to have the capability to oxidize organic compound in wastewater. Adsorption is done by using granular activated carbon (GAC) as an adsorbent to increase tofu wastewater degradation process by adsorbing organic materials and increasing production of hydroxyl radical as the main oxidizing agent. This research is carried out to evaluate the performance of ozonation, adsorption, and combination of both in processing tofu wastewater. To evaluate the significance of ozone dosage and amount of GAC used, these variations are varied which are 60, 111, and 155 mg/h of ozone dosage and 50, 75, and 100 g of the amount of GAC used. Parameters of the process are organic substances of tofu wastewater such as COD, TSS, and pH. The measurements are being done using a spectrophotometer, colorimeter, and pH meter. The outcome of this research is to provide an alternative method in the liquid waste treatment of the tofu industry and the processed wastewater to meet the environmental quality standards. The more ozone and the more quantity of GAC used, the higher the quantity of hydroxyl radicals formed. Addition of GAC in the ozonation process results in more than 100% increase in hydroxyl radical production. Combination of ozonation and adsorption is able to remove 377.12 mg/L of COD and 26 mg/L of TSS.


chemical oxygen demand; granular activated carbon; ozone; tofu wastewater; total suspended solid

Full Text:

Full Text PDF


[1] Kaswinarni, F., 2007, Kajian teknis pengolahan limbah cair padat dan cair industri tahu, studi kasus industri tahu sandang Semarang, sederhana Kendal dan gagak sipat Boyolali, Thesis, Universitas Diponegoro, Semarang.

[2] Pohan, 2008, Pengolahan limbah cair industri tahu dengan proses biofilter aerobik, Thesis, Universitas Sumatera Utara, Medan.

[3] Abineri, H.S., Sato, A., and Utomo, P., 2015, Pengolahan limbah tahu secara anaerobik-aerobik kontinu, Seminar Nasional Sains dan Teknologi Terapan III 2015, Institut Teknologi Adhi Tama Surabaya.

[4] Peraturan Menteri Lingkungan Hidup Republik Indonesia Nomor 5 Tahun 2014 Tentang Baku Mutu Air Limbah.

[5] Langlais, B., Reckhow, D.A., and Brink, D.R., 1991, Ozone in Water Treatment: Application and Engineering: Cooperative Research Report, American Water Works Association and Compagnie Generale des Eaux, Denver, CO.

[6] Fessenden, R.J., and Fessenden, J.S., 1990, Kimia Organik, 1st ed., Aloysius (Trans.), Erlangga, Jakarta.

[7] Wu, J., 2004, Modeling Adsorption of Organic Compounds on Activated Carbon, Dissertation, Umea University, Sweden.

[8] Dobre, T., Pârvulescu, O.C., Iavorschi, G., Stroescu, M., and Stoica, A., 2014, Volatile organic compounds removal from gas streams by adsorption onto activated carbon, Ind. Eng. Chem. Res., 53 (9), 3622–3628.

[9] Goi, A., 2005, Advanced Oxidation Processes for Water Purification and Soil Remediation, Thesis, Tallinn University of Technology, Estonia.

[10] Ghuge, S.P., and Saroha, A.K., 2018, Catalytic ozonation for the treatment of synthetic and industrial effluents - Application of mesoporous materials: A review, J. Environ. Manage., 211, 83–102.

[11] Hadavifar, M., Younesi, H., Zinatizadeh, A.A., Mahdad, F., Li, Q., and Ghasemi, Z., 2016, Application of integrated ozone and granular activated carbon for decolorization and chemical oxygen demand reduction of vinasse from alcohol distilleries, J. Environ. Manage., 170, 28–36.

[12] Gümüș, D., and Akbal, F., 2017, A comparative study of ozonation, iron coated zeolite catalyzed ozonation and granular activated carbon catalyzed ozonation of humic acid, Chemosphere, 174, 218–231.

[13] Karamah, E.F., Leonita, S., and Bismo, S., 2018, Phenols removal using ozonation-adsorption with granular activated carbon (GAC) in rotating packed bed reactor, IOP Conf. Ser. Mater. Sci. Eng., 299, 012094.

[14] Rozas, O., Baeza, C., Nunez, K., Rossner, A., Urrutia, R., and Mansilla H.D., 2017, Organic micropollutants (OMPs) oxidation by ozone: Effect of activated carbon on toxicity abatement, Sci. Total Environ., 590-591, 430–439.

[15] Suryana, M.D., 2016, Penyisihan Sianida dan Chemical Oxygen Demand dari Limbah Cair Industri Tepung Tapioka dengan Teknik Ozonasi Adsorpsi Menggunakan Granular Activated Carbon, Thesis, Universitas Indonesia, Depok.

[16] Sanchez-Polo, M., von Gunten, U., and Rivera-Utrilla, J., 2005, Efficiency of activated carbon to transform ozone into •OH radicals: Influence of operational parameters, Water Res., 39 (14), 3189–3198.

[17] Laras, N.S., Yuliani, and Fitrihidajati H., 2015, Pemanfaatan arang aktif limbah kulit kacang kedelai (Glycine max) dalam meningkatkan kualitas limbah cair tahu, LenteraBio, 4 (1), 72–76.


Article Metrics

Abstract views : 3509 | views : 2993

Copyright (c) 2018 Indonesian Journal of Chemistry

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.


Indonesian Journal of Chemistry (ISSN 1411-9420 /e-ISSN 2460-1578) - Chemistry Department, Universitas Gadjah Mada, Indonesia.

Analytics View The Statistics of Indones. J. Chem.