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All Journal Jurnal Ilmu Lingkungan JURNAL TEKNOLOGI LINGKUNGAN Elkawnie ALCHEMY Jurnal Penelitian Kimia Jurnal Hilirisasi IPTEKS (JHI) Jurnal Riset Teknologi Pencegahan Pencemaran Industri Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Jurnal Pengabdian Masyarakat Indonesia Jurnal Teknologi Lingkungan Horizon: Indonesian Journal of Multidisciplinary Serambi Engineering
Zulkarnaini Zulkarnaini
Departement Of Environmental Engineering, Universitas Andalas
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Medicine & Pharmacology Public Health Social Sciences Veterinary Other

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Recovery Nutrien dari Efluen Digester Anaerobik Air Limbah Tahu dengan Presipitasi Struvite Zulkarnaini Zulkarnaini; Fenisa Fauziyah Marshal; Puti Sri Komala; Aufa Aniq Rumzi; Dewi Nilawati; Widyarani Widyarani; Diana Rahayuning Wulan; Neni Sintawardani; Nicolaus Nezha Nunez Mahasti
ALCHEMY Jurnal Penelitian Kimia Vol 21, No 2 (2025): September
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.21.2.93205.198-223

Abstract

Efluen dari digester anaerobik multistages fixed-bed reactor pengolahan air limbah industri tahu di Desa Giriharja, Kabupaten Sumedang, memerlukan pengolahan lanjut karena masih mengandung nutrien amonium dan fosfor yang melebihi standar baku mutu untuk badan air. Presipitasi struvite merupakan presipitasi kimia yang memungkinkan untuk memperoleh kembali (recovery) amonium dan fosfat dari air limbah dengan cara penambahan magnesium. Air laut dapat digunakan sebagai sumber magnesium untuk proses presipitasi untuk mengurangi biaya operasional. Presipitasi struvite dipengaruhi oleh pH, ion-ion penting, suhu, dan zat-zat asing. Nilai pH yang tinggi dapat meningkatkan efisiensi penyisihan dan recovery P dan N, akan tetapi dapat meningkatkan presipitasi magnesium dan kalsium fosfat sehingga mengurangi kualitas kristal struvite yang terbentuk. Tingkat kejenuhan struvite berbanding lurus dengan logaritma konsentrasi ionik dalam kristal. Tingkat pertumbuhan, jenis dan ukuran kristal dipengaruhi oleh tinggi suhu. Tingginya konsentrasi zat asing pada larutan dapat mengakibatkan terhalangnya pertumbuhan kristal struvite. Penggunaan air laut sebagai sumber magnesium dalam presipitasi struvite dapat mengurangi biaya produksi, transportasi, serta menggantikan penggunaan bahan kimia.Nutrient Recovery from Tofu Wastewater Anaerobic Digester using Struvite Precipitation. Effluent from a multistage anaerobic digestion fixed-bed reactor for tofu industrial wastewater treatment in Giriharja Village, Sumedang Regency, requires further treatment because it still contains nutrients of ammonium and phosphorus that exceed the water quality standards. Struvite precipitation is a chemical precipitation process that allows for the recovery of ammonium and phosphate from wastewater by adding magnesium. Seawater can be used as a source of magnesium for the precipitation process to reduce operational costs. Struvite precipitation is affected by pH, essential ions, temperature, and foreign substances. A high pH value can increase the efficiency of P and N removal and recovery, but it can also increase the precipitation of magnesium and calcium phosphate, thereby reducing the quality of the struvite crystals formed. The level of struvite saturation is directly proportional to the logarithm of the ionic concentration in the crystals. The growth rate, type, and size of crystals are affected by temperature. High concentrations of foreign substances in the solution can inhibit struvite crystal growth. Using seawater as a source of magnesium in struvite precipitation can reduce production and transportation costs and replace the use of chemicals.
Co-Authors . Gusmini Ad'hani, Calysta Deli Amalia Viviani Amir Husin Annisa Aulia Rasyidah Aufa Aniq Rumzi Bayu Muhammad Ilham Berlinda Vaniake Wemas Calysta Deli Ad'hani Chyntia Dhiya Ulhaq Desto Jumeno Dewi Nilawati Diana Rahayuning Wulan Eka Faradilla Hasanah Elva Gusmeri Ermaliza, Wina Fadhila Fadhila Fadhila Fadhila Faldi Lulrahman Fenisa Fauziyah Marshal Ferdy Ashari Syawal Fitri Yuranda Iing Surya Marlis Irfan Suliansyah Khasman Khasman Kiki Ervina Mega Rianes Neni Sintawardani Nicolaus Nezha Nunez Mahasti Nur, Ansiha Nur, Ansiha Puti Sri Komala Putra, Ilham Hagi Putra, Randi Permana Reri Afrianita Ridwan Ridwan Rika Putri Rinda Andhita Regia Roselyn Indah Kurniati Shinta Indah Shinta Silvia Shinta Silvia Silvia, Shinta Syafrimen Yasin Tivany Edwin Ummi, Sodaya Widyarani Widyarani Wina Ermaliza Wina Ermaliza Yuranda, Fitri