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Lita Darmayanti
Universitas Riau
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Journal : Jurnal Ilmu Lingkungan

 1 
Innovative Use of Palm Oil Fly Ash-Based Zeolite for Zinc (II) Removal from Wastewater Darmayanti, Lita; Adawiyah, Rodiah Rabi’ah Al
Jurnal Ilmu Lingkungan Vol 23, No 5 (2025): September 2025
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.23.5.1353-1358

Abstract

Zinc (Zn) is a heavy metal commonly found in wastewater, with Zn (II) levels above the threshold causing health problems and environmental pollution. Though zinc is essential, excess zinc can lead to poisoning. Thus, Zn (II) must be removed before releasing water into the environment. The adsorption method is effective for controlling heavy metal pollution, with zeolite based on POFA (palm oil fly ash) as a useful adsorbent. This research aims to analyze the influence of pH, adsorbent dose, contact time, and initial concentration on POFA-based zeolite's ability to remove Zn (II). Experiments were conducted by varying pH (3, 4, 5, 6, 7), adsorbent dosage (1, 1.5, 2, 2.5, 3 g/L), contact time (5, 10, 15, 30, 60, 90, 120, 150, 180 minutes), and initial Zn (II) concentration (2, 4, 6, 8, 10, 15 mg/L). Results showed the highest Zn removal efficiency at pH 6, an adsorbent dose of 2 g/L, and a contact time of 60 minutes, achieving 98.77% removal. The Zn (II) adsorption process fits the Langmuir and Freundlich isotherms, with a maximum adsorption capacity of 28.27 mg/g. The adsorption kinetics followed a pseudo-second-order model with qe 5.04 mg/g and an adsorption rate constant of 0.197 g.mg-1.min-1.
Co-Authors AA Sudharmawan, AA Adawiyah, Rodiah Rabi’ah Al Alex Kurniawandy Amalia Masturah Aminuyati Annam, M. Khairul Annisa Arifandita Mifshella Arhamny Arhamny Ari Sandhyavitri Aryo Sasmita Atria Martina Bambang Sujatmoko Benny urzikri Rahim Cahyani, Anugrah Damanhuri, Enri Damayanti, Elok David Andrio Desasy, Hannifah Julian Desce P Simarmata, Stella Dewi Fitria Dewi Fitria DEWI FITRIA, DEWI Dian Kharisma Dewi Dian Paramita Dwiegi Safitri Febriani Dwiegi Safitri Febriani Edward HS Edward Hs Edward Sitio Edy Saputra Elvi Yenie, Elvi Enri Damanhuri Enri Damanhuri Enri Damanhuri Ermiyati Ermiyati Eryan Chintya Debby Esther RA Fadli Dirga Subardi Fauzi, Manyuk Febiola, Ollga Febriana, Hertina Febriansyah, M. Ferdy Ashari Syawal Fika Rahma Yuni Fika Rahma Yuni Fikri Julian Fitra, Rakha Athaya Grethy Asmara Sitorus Habrio Ilva YR Hamdani . Hamdani Hamdani Hendriani, Annisa Hesti, Tsaniatul Amania Husni, Afdaul Imelda Dewi Agusti Iqbal Perdana Putra Irpan, Apdani Jaya Alexander Pandiangan Jecky Asmura Kartika Pratama Syafitri Khairani , Ayu Dhea Kholik, Dede Abdul Leowedi, Agung Lidya Astuti Lisa Asmiyarna Lisa Asmiyarna M. Khairul Annam M. Ridwansyah Mahardika, Dewa Ayu Divia Pradhaswari Mahombar, Boby Steven Marta Yudha Ozman May Kristina Maya Septiani Wijaya Monita Olivia Muhamad Yusa Muhammad Hasbu Nazar Muhardi Muhardi Mutia Putri Mutia Putri Nadia Yulia Lestari Nadya Dwi Permatasari Vionola Norima Sabrina Novriyanti, Lucky Okdika Berliandra Olivia, Arinda Oni Loretha Priscilia P Girsang, Yemima Priyambada, Gunadi Purwoko, Agus Putra, Iqbal Perdana Putri, Dini Riskiana Putri, Nofia Afifah Regina Deva Aulia Reynaldi Saputra Rezeki, Muhammad Dio Rilian Gerry Sitompul Ririn Yuari Farandia Roma Dearni Ryan Renaldi S Siswanto Safitri, Nurramadhani Saputra, Muhammad Ramadhan Sarah Dwi Arini Shinta Elistya Shinta Elystia Sigalingging, Krisda Novita Soewignjo Agus Nugroho Sri Febria Suci, Nabila Rahma Suprihanto Notodarmodjo Suprihanto Notodarmojo Sutikno, Sigit Syamsul Arifin Syarfi Daud Tania Octalina Tamamy Ucok H Pulungan Usman, Ratika Winda Astuti Halinda Putri Wulandari Wulandari Yasmin Nabila Dharma Yogi Guntara Yohanna Lilis H Yuni, Fika Rahma