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Journal : agriTECH

Boiler Ash of Oil Palm Shell as Adsorbent for Lead Adsorption Nurdiansyah, Nurdiansyah; Hidayat, Chusnul; Suroto, Dian Anggraini
agriTECH Vol 45, No 2 (2025)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.93514

Abstract

Palm oil shells and fibers are widely used as fuel for factory boiler furnaces. However, boiler ash residue produced is often underutilized. This study aims to explore the use of boiler bottom ash (BBA) as an adsorbent for the adsorption of lead (Pb) and its subsequent application in palm oil mill effluent (POME) purification for water dilution in crude palm oil (CPO) processing. BBA was activated using 0.2, 0.4, 0.6, and 0.8 mol/L potassium hydroxide (KOH) solutions for 24 hours, and the carbonation was conducted at 400°C for 60 minutes. Factors, such as the concentration of KOH for BBA activation, pH levels, adsorption temperature, adsorption kinetics, and the application of the adsorbent in POME purification for water dilution in the CPO processing model, were evaluated. The results showed that the optimal KOH concentration was 0.4 mol/L, as determined by SEM, EDX, and lead adsorption analysis. The maximum adsorbent capacity of approximately 0.43 mg/g was obtained at 50°C and pH 4.6, with an adsorption rate constant of 5.97 per minute. The results also showed that the adsorption process followed the Langmuir model. In addition, the adsorption activation energy and the Arrhenius constant values were -28675.82 J/mol and 0.0001, respectively. The use of POME filtrate for water dilution had no effect on the free fatty acids, water content, impurities, or DOBI (Deterioration Bleachability of Index) in CPO. Lead value showed significant differences in all treatments without dilution. These results indicate that BBA activated with KOH can function as an adsorbent to reduce lead content. POME purified with BBA adsorbent has the potential to be used as diluent water in CPO processing to reduce raw water use and ultimately decrease POME production.
Co-Authors Abdilla, Nabil Aghniyah, Isna Alifia Agustia, Yesi Ahdar Ahdar, Ahdar Ahmad, Alifia Nur Azizah Habibillah Ahmal, Ahmal Aisy, Nada Rihadatul Aisya, Shastela Aisyah Rahmawati Akhmad Amirudin Akhmad Amirudin Akhmad Sobarna Akmal, Atqo Akmal, M. Al Fiqri , Yanuar Alif Maulana, Alif Aliya, Filma Aminuyati Amiruddin, Aswar Andri, Rara Zui Anggiriani, Feriska Anugrah S, M Ridho Apriliandra, Intania Aprizal Aprizal Aqbal, Jordan Arifin, Ramadhan Aritonang, Ilham ASRIL ASRIL Assyifaturramah, Assyifaturramah Awfa, M.Rizky Az Zahra, Diandra Azhara, Aila Azzahra, Novi Barasa, Ferdian Adira Melati Baringbing, Eva Prilieli Cahyadi, Dinda Putri Chusnul Hidayat Damanik, Rio Antonius Dedi Supriadi Delpita, Della Dian Anggraini Suroto Dirgantoro, Edwin Wahyu Djamro, Risnayanti Andi Dwi Kartini, Dwi Eddyono, Fauziah Erlangga, M. Bintang Erliana, Mita Faddyasinta Sahnabila Rahmadika Fadilah, Satya Amalia Fadly Azhar Faizal, Rahmat Fajrusalam, Hisny Fatimatuzzahro, Siti Fauzi, Muhammad Nor Fauziah, Adela Fauziyah, Nisa Nur Fazrin, Dinda Nurainun Firdaus, Dzulfa Nur Hafiziani Eka Putri, Hafiziani Eka Hamid , Abd. Hardiantini, Elsa Hasanah, Adzra Duriah Hasiolan, Anrio Herita Warni Herlina, Pani Hidayat, Andi Muhammad Nur Hisny Fajrussalam Huda, Abdi Nul husna, Mufidatul Ihsan Abdul Patah Indra Setiawan Indriani, Runi Irwan Budiman Ishak, Lisa Fitriani Ishak, M Isjoni Isjoni Isjoni, M. Yogi Riyantama Ismahan Umran Izhar Salim Jadidah, Fikrotul Janah, RA. Mipta Miftahul Jannah, Fachriyahthul Jennyta caturiasari Kahri, Ma'ruful Karolina, Nadiya Kasrisman, Vicki ahmad Khasana, Nur Khoirunnisa, Anis Lusia, Vivi Maharani, Chintya Dwi Marbun, Amanda Angelita Marbun, Rapita Hotnauli Maria Lestari Maria, Salsa Masruroh MASRUROH Medi, Divo Zidane Akbar Nugraha Meilani, Della Miftahul Jannah Mokoginta, Sicilya Cahyawati Muh. Arif Muhammad Faisal Mukti, Robby Teja Muliadi Muslimah Apriliya Mustaqim , Muhammad Rizal Nabilah, Sarah Nahan, Tiara Anggreani Najwah, Fariha Nasir Usman Nata, Ananda Muhammad Fajar Kusuma Na’imah, Nuri Noviyanti, Salsa Nurhikmah, Juliana Nurhikmah, Uni Nur’ani, Firra Dwi Oktafrina, Andhini Oktaviani oktaviani Pitriani, Najwa Pratama, Giar Anugrah Pratama, Lutfi Anugrah Pratama, Rizqi Cahyo Pratiwi, Marda Merliana Ayu Prayoga, Dwi Putra, Himawan Putri, Audrey Rosdiana Putri, Cyntia Putri, Dwina Nurmalia Putri, Viola Raissa Rachma Nurfitria Rachman, Aryadi Rahayu, Vina Rahma, Ayang Ranisa Rahmadaeni, Dwi Rahmadani, Nadya Rahmadani, Novita Monika Saumil Rahmadi, Fachri Devio Rahmawati, Hanny Rakasiwi, Neng Putri Ramadhan Arifin Ramdani, Ahmad Retno Purwani Setyaningrum Ria, Siska Rifa’i, Rafly Ahmad Riska Ovany Ristina Mirwanti, Ristina Rizka, Mifta Rizq, Annisa Yumna Rofatannuroh, Rofatannuroh Rosa, Fitria Rosalina Rosalina Rosmana, Primanita Sholihah Rudy Herteno Rulhendri Rulhendri Rustiaman, Rizal Saharuddin Salsabila, Arabel Fadhiyah Sanusi, Rajib Saputra, Gilang Akbar Saputra, Yoga Saragi, Jesika Julianti Sari, Tiominar Febrianti Puspita Septiani, Nevi Sespira, Dira Setyani, Meli Simanjuntak, Mega Sarmauli Siti Mariyam Sofyan Iskandar, Sofyan Sri Wahyuni Sukmawati, Vika Andria Supriadi Supriadi Supriatna Supriatna Suroyo Suroyo SYAFAR, A. MUHAMMAD Syafriafdi, Non Syahrofi, Mhd Tri Syahrulka, Gilang Syamsiar, Syamsiar Syamsul Arifin Sya’bani, Yahya Rafi Tabita, Putri Taslih, Ahmad TATAN SUKWIKA Taufik Bustami, Ratna Dewi, Alimuddin, Reskiani, Riefky Dj Al Idrus, Tino Orciny Chandra Tosin, Muh. Triansyah, Rinaldi Pramana Trisnawati, Puput Vivi, Luluk Febrian Olga Wahid, Muhammad William, Adam Wina Mustikaati Yani, Rahma Yanny Trisyani Yogi Riantama Isjoni, Muhammad Yogiarni, Tiara Yosi Anggia Margaret Tambunan Yulianadewi, Ina Yuliandri, Daffa Adli Zikri, Arifan