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All Journal Jurnal Teknologi Lingkungan Universitas Trisakti Reaktor Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Ilmu Lingkungan Bionatura CIVED (Journal of Civil Engineering and Vocational Education) Jurnal Reka Lingkungan JURNAL TEKNOLOGI LINGKUNGAN Jurnal Teknik Pengairan: Journal of Water Resources Engineering Jurnal Dampak Indonesian Journal of Biotechnology Jurnal Penelitian Pendidikan IPA (JPPIPA) ALCHEMY Jurnal Penelitian Kimia Jukung (Jurnal Teknik Lingkungan) IJEMS (Indonesian Journal of Environmental Management and Sustainability) Jurnal Purifikasi Jurnal Serambi Engineering JURNAL REKAYASA Serambi Engineering Journal of Civil Engineering and Vocational Education
Puti Sri Komala
Departemen Teknik Lingkungan Universitas Andalas
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Public Health Transportation

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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.
Analisis Potensi Pemanfaatan Kualitas Air Hujan Untuk Penggunaan Non-potable Water di Kampus Universitas Andalas Ermaningsih; Nur, Ansiha; Komala, Puti Sri
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The high demand water for sanitation purposes in Engineering Faculty, Andalas University, particularly for toilet flushing systems, has not been balanced by utilization of sustainable alternative water sources. Therefore, this study aims to evaluate feasibility of rainwater quality as non-potable water source planned for implementation in the buildings of Engineering Faculty, Andalas University. The feasibility assessment refers to Regulation of Health Minister of Republic of Indonesia Number 2 of 2023. Rainwater samples collected directly from building roof downpipes, with three repetitions at the same location. The parameters of pH, dissolved oxygen (DO), and temperature were measured in situ using Lutron DO-5510 dissolved oxygen meter and portable pH meter, while turbidity, BOD, COD, TSS, and total coliform were analyzed at Environmental Engineering Department Laboratory of Andalas University using standard methods based on SNI 6989.57:2008 and US EPA Method 1699. The results indicate that pH, DO, temperature, BOD, COD, TSS, and turbidity comply with the established quality standards, whereas total coliform levels exceed the permissible limit. The presence of total coliform is presumably due to contamination from bird droppings on roof surfaces, particularly in areas surrounded by vegetation.
Co-Authors AA Sudharmawan, AA Adetya, Ashifa Agus Jatnika Effendi Ananthi, Naraina Arief Almi Arionanda, Fauzia Arlina, Lia Ashifa Adetya Aufa Aniq Rumzi Denny Helard Dewi Fitria Dewi Nilawati Dewi, Nadia Tripermata Dewi, Purnama Mentari Diana Rahayuning Wulan Dura Vendela Ermaningsih Fadjar Goembira Fenisa Fauziyah Marshal Fitra Ramadhani Fitria, Irna Rosa Ida Ayu Putu Sri Widnyani Iing Surya Marlis Juwita Zurienra Leni Leni M Zulfan Mardatillah, Regina Mas Mera Nabila, Alya Sausan Nadia Tripermata Dewi Nasution, Farida Hannum Nelda Murti - Neni Sintawardani Nicolaus Nezha Nunez Mahasti Nino Perdana Putra Nur, Ansiha Nur, Ansiha Nurwijayanti Primasari, Budhi Purnama Mentari Dewi Purnama Mentari Dewi Putra, Randi Permana Putri, Widia Rati Yuliar Ningsih Regia, Rinda Andhita Ridwan Ridwan, Ridwan Rinanda, Bismi Lyra Rizki Aziz Roselyn Indah Kurniati Salmariza Sy - Shinta Indah Silvia, Shinta Slamet Raharjo Suarni S Abuzar Suarni S. Abuzar Suarni Saidi Abuzar Suarni Saidi Abuzar Suci Handayani, Suci Suci Wulandari Syukur, Adyana Tivany Edwin Tomi Wirawan Tomi Wirawan Uttiya Annisa D Wahyu Tanaka Wenten, IG. Widyarani Widyarani Wisjnuprapto, Wisjnuprapto Yenni Ruslinda Yommi Dewilda Yuda Maisuara Zikra Zikra Zilvia Wulandari Zilvia Wulandari Zulkarnaini Zulkarnaini Zulkarnaini Zulkarnaini