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Journal : Serambi Engineering

Pemanfaatan Fly Ash dan Bottom Ash Sebagai Adsroben dalam Menurunkan Parameter COD dan BOD pada Limbah Cair Tahu Badu, Risti Ristianingsih; Kunusa, Wiwin Rewini; Umadji, Nur Inda R.; Paramata, Mulyani Zahra; A, Anisyah A. MS.
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The demand for clean water in Indonesia has been steadily increasing, but water pollution from industrial wastewater, especially from tofu production, remains a significant challenge. This study investigates the potential of fly ash and bottom ash as adsorbents to reduce chemical oxygen demand (COD) and biochemical oxygen demand (BOD) in tofu wastewater. Laboratory experiments were conducted with different adsorbent doses of 25, 50, and 75 grams. The adsorption process involved stirring the samples for 60 minutes, followed by a sedimentation period of 120 minutes. The results showed that fly ash was more effective than bottom ash in reducing COD and BOD levels. At a dose of 75 grams, Fly Ash achieved a 72% reduction in COD (from 0.8672 mg/L to 0.2438 mg/L) while Bottom Ash resulted in a 68% reduction with a final COD concentration of 0.2735 mg/L. A similar pattern was observed in the reduction of BOD. These results indicate that both fly ash and bottom ash can be effective and environmentally friendly alternatives for the treatment of tofu wastewater.
Co-Authors A, Anisyah A. MS. A. Mu’thi Andy Suryadi Adam Mustapa, Muhammad Ahmad Kadir Kilo Akram La Kilo Andimala, Febriyanti Annisa Untuba Arviani Arviani Arviani, Arviani Arwin, Muh. Astin Lukum Astin Lukum Basalama, Muhamad Tri Rezki Botutihe, Deasy N. Djalil, Jhodi Pratama Doly Prima Silaban Endah Nurrohwinta Djuwarno Erga Kurniawati Erni Mohamad Febriyanti Andimala Febriyanti Andimala Frida Maryati Yusuf giu, fitri ani Guge, Sri Rahmawati Hadji, Fitri HARIS MUNANDAR Haris Munandar Hendri Iyabu Hendri Iyabu Hendri Iyabu Ibrahim, Indriyanti Ibrahim, Rahmi I Inrawani Inrawani Ishak Isa Ishak, Candrawati Ishka Isa Jafar La Kilo Jafar La Kilo Julhim S Tangio Julhim S Tangio Julhim S. Tangio Karim, Cecy Rahma Karmila Bilondatu Kostiawan Sukamto, Kostiawan La Alio La Ode Aman La Ode Aman Mahdi Kilo Malae, Ismail Mangara Sihaloho Mangara Sihaloho Mardjan Paputungan Marnila Marnila Masrid Pikoli Meylani Frisilia Meyrin Hamzah Moh Izwarto Piyohu Moh. Fajri Moh. Fajri Langgene Muh. Arwin Muhamad Handoyo Sahumena Muhammad Taupik Mulyani Zahra Paramata Murjiatunur Amboy Musa, Weni J.A Musa, Weny A Musa, Weny J.A. Najmah, Najmah Netty Ino Ischak Ngabito, Putri Amalia Nita Suleman Nita Suleman Nur Isty Fidya Nur Rafida Akub Nur'afni Suaib Nurfadilah M. Kasim Nurhayati Bialangi Nurhayati Bialangi Opir Rumape Pakaya, Agustina H. Pakaya, Sitti Masita A. Palari, Nuraini Pinangi, Dea Putri Amalia Ngabito Ramli Utina Riryn Tahir Risti Ristianingsih Badu Romario Abdullah Roslina Imran Rusmani Tasanif Sahami, Ulin Sahrial Lakasim Siti Hadijah Lamato Bempa Siti Hairunisa Kandusu Sri Rahayu Latif Sriyana Ohi Suci Damayanti Sufriyanto Ibrahim Syakina Marilan Daaliwa Thayban Thayban Thayban, Thayban Umadji, Nur Inda R Umadji, Nur Inda R. Vera Yustika Wa Ode Nurlisa Weny J.A Musa Wina Zulfiana Tulie Yestin Takowa Yusuf, Risciana Yuszda K Salimi Yuszda K. Salimi Zikran Abdullah Zulfa K Muslimin Zulfikar Ahmad