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Sihombing, Rony Pasonang
Jurusan Teknik Kimia, Politeknik Negeri Bandung
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Journal : Journal of Green Science and Technology

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Phosphoric Acid-Activated Carbon From Coffee Grounds and Fly Ash For Efficient Laundry Wastewater Adsorption Muhari, Emma Hermawati Muhari; Silalahi, Rafael Leonardo; Puspita, Nina; Maryani, Anisya Sri; Sihombing, Rony Pasonang; Adhitasari, Alfiana; Kurnia, Dianty Rosirda Dewi
Journal of Green Science and Technology Vol 9 No 2 (2025): Journal of Green Science and Technology Vol. 9 No.2 September 2025
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v9i2.10649

Abstract

Laundry waste that is directly discharged into water bodies causes pollution due to its chemical content, such as phosphate. The adsorption method is chosen as an option to reduce the phosphate content in laundry waste due to its simple preparation and low cost. The adsorbent used is a mixture of coffee grounds and fly ash. The use of coffee grounds is based on the increasing waste from coffee shops, thus being utilized as an adsorbent. The aim of this study is to determine the effectiveness of coffee grounds and fly ash with the best combination of composition and contact time using the adsorption method. The stages begin with the preparation of coffee grounds and fly ash through carbonization and activation using H3PO4. The variations performed consisted of variations in the composition of coffee grounds and fly ash with a total of 1 gram in ratios of 1:4; 2:3; 1:1; 3:2; 4:1 and contact time variations of 15 minutes, 30 minutes, 45 minutes, 60 minutes, and 75 minutes. Based on the research results, the highest percentage of removal was found in the composition variation of coffee grounds and fly ash with a ratio of 1:4 for 75 minutes.
Co-Authors -, Alfiana Adhitasari Adi Rizki Nugraha Ageng Priyambudi Ahmad Fauzan Alamsari, Jasinta Putri Alatif, Ikhsan Akmal Alfiana Adhitasari Alisya Nurbaits Althafa Muntaqin Anindita, Faradila Anisa, Vira Rizki Annisa Nurlatifah Asyari, Restu Adji Alif Azzahra, Rafila Chika Bambang Soeswanto Bambang Soeswanto binti Jamaluddin, Jamarosliza C. Yudha Hidayatulloh Cecep Yudha Hidayatullah Dieni Nurul Fathiyyah Fajriati, Ramadhana Suci Fatah, Khalaida Fania Fatimah Fauzan, Rizky Ferawati, Yohana Fransiska Fitriani, Desti Gunawan, Sinna Chaerunnabila Hariyadi, Tri Hidayatulloh, Irwan Ibrahim, Idham Kholid Indarti, Retno Jayanti, Retno Dwi Keryanti, Keryanti Khalisha, Keira Kharisma, Luthfiana Krista, Gustin Mustika Kurnia, Dianty Rosirda Dewi Lutfiah Rahmasari Luviana, Angely Malik, Dava Maulana Marlina, Ari Maryani, Anisya Sri Muhammad Fadly Wiryawan Kautsar, Muhari, Emma Hermawati Muhari, Emma Hermawati Muhari Mukhtar Gozali Nanda Liant Kumara Ngatin, Agustinus Nidaa’ Rihhadatul ‘Aisya Komara Nidaulhusna, Anisa Ninik Lintang Edi Wahyuni Nurbaits, Alisya Nurcahyo Nurcahyo, Nurcahyo Nurhasanah, Santy Nurulgina, Rahma Paramitha, Tifa Permanasari, Ayu Ratna Permatasari, Rahma Puspa Puspita, Nina Putri Utami Dita Cahya Putri, Angelina Rahmawati, Sri Puji Ramadan, Naufal Alip Cahya Ramadhan, Muhammad Zikri Ramadhani, Isma Afifah Renata, Calvin Aditya Restu Adji Alif Asyari Retno Indarti Reynaldi, Randi Rijal Muyasar Fahmi Risnandar, Tiara Devita Rispiandi Rispiandi Robby Sudarman Rusmana, Muchamad Raihan Surya Sajida, Gita Nur Salsabila Nisrina Junaedi Salsabila, Intan Salsabila, Iva Najwa Salsabila, Shafira Salsabilla, Iva Najwa Sari, Hermin Kartika Sari, Radianti Novita Silalahi, Rafael Leonardo Solehuddin Al-Ayubi Solehudin Al-Ayubi Sudrajat Harris Abdulloh Suminar, Dian Ratna Suryadi, Joko Tamba, Alfonsius Perdija Taufiqurohim, Teguh Tika Paramitha Tri Hariyadi Unung Leoanggraini Wahyu Wibisono Widya Fitria Nur Fauziah Wina Maulida Yulistiani, Fitria Yunus Tonapa Sarungu Yusmardhany Yusuf Yusmardhany Yusuf Yusuf, Yusmardhany Zafarina, Alizza Asry