Coffee Waste as a Potential Adsorbent for Peat Water Treatment
Peat water is characterized by high acidity, turbidity, and poor sensory qualities, which limit its usability. This study evaluated the effectiveness of thermally activated coffee waste adsorbent (CWA) for peat water treatment. CWA was prepared by heating coffee waste at 250°C, followed by wash...
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| Format: | Article |
| Language: | English |
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Universitas PGRI Madiun
2025-08-01
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| Series: | CHEESA |
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| Online Access: | https://e-journal.unipma.ac.id/index.php/cheesa/article/view/22320 |
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| author | Rahma Amalia Sarah Fiebrina Heraningsih Oki Alfernando Sri Mundarti Muhammad Haviz Nadia Elvina Sonia Nizal Putri Resi Lisma Kinasih Asmara Yuzi Chantika Pratama Ahmad Fadhilah Ashidiqie |
| author_facet | Rahma Amalia Sarah Fiebrina Heraningsih Oki Alfernando Sri Mundarti Muhammad Haviz Nadia Elvina Sonia Nizal Putri Resi Lisma Kinasih Asmara Yuzi Chantika Pratama Ahmad Fadhilah Ashidiqie |
| author_sort | Rahma Amalia |
| collection | DOAJ |
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Peat water is characterized by high acidity, turbidity, and poor sensory qualities, which limit its usability. This study evaluated the effectiveness of thermally activated coffee waste adsorbent (CWA) for peat water treatment. CWA was prepared by heating coffee waste at 250°C, followed by washing and drying at 60°C. Batch adsorption experiments were conducted using 1–3 g of CWA in 200 mL of peat water at 30°C, stirred at 150 rpm for 30 minutes. The results revealed significant improvements in water quality: pH increased from 3.85 to 4.62; turbidity was reduced by 99.37% (from 75 to 0.47 NTU); conductivity decreased by 30.7% (from 424 to 294 μS/cm); and total dissolved solids (TDS) dropped by 93.3% (from 208 to 14 ppm). The Langmuir isotherm model (R² = 0.7297) provided a better fit than the Freundlich model (R² = 0.5845), indicating monolayer adsorption behavior with a maximum capacity of 0.1634 mg/g and a favorable separation factor (RL = 0.0057). Sensory evaluation confirmed enhanced color and odor. These findings support the use of CWA as a sustainable and low-cost adsorbent for improving peat water quality.
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| format | Article |
| id | doaj-art-fe878075f37544f58e10ab7dd45adc48 |
| institution | DOAJ |
| issn | 2614-8757 2615-2347 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Universitas PGRI Madiun |
| record_format | Article |
| series | CHEESA |
| spelling | doaj-art-fe878075f37544f58e10ab7dd45adc482025-08-20T03:02:46ZengUniversitas PGRI MadiunCHEESA2614-87572615-23472025-08-018110.25273/cheesa.v8i1.22320.23-34Coffee Waste as a Potential Adsorbent for Peat Water TreatmentRahma Amalia0Sarah Fiebrina Heraningsih1Oki Alfernando2Sri Mundarti3Muhammad Haviz4Nadia Elvina5Sonia Nizal Putri6Resi Lisma Kinasih7Asmara8Yuzi Chantika Pratama9Ahmad Fadhilah Ashidiqie10Universitas JambiUniversitas JambiUniversitas JambiUniversitas JambiKing Fahd University Petroleum and MineralUniversitas JambiUniversitas JambiUniversitas JambiUniversitas JambiUniversitas JambiUniversitas Jambi Peat water is characterized by high acidity, turbidity, and poor sensory qualities, which limit its usability. This study evaluated the effectiveness of thermally activated coffee waste adsorbent (CWA) for peat water treatment. CWA was prepared by heating coffee waste at 250°C, followed by washing and drying at 60°C. Batch adsorption experiments were conducted using 1–3 g of CWA in 200 mL of peat water at 30°C, stirred at 150 rpm for 30 minutes. The results revealed significant improvements in water quality: pH increased from 3.85 to 4.62; turbidity was reduced by 99.37% (from 75 to 0.47 NTU); conductivity decreased by 30.7% (from 424 to 294 μS/cm); and total dissolved solids (TDS) dropped by 93.3% (from 208 to 14 ppm). The Langmuir isotherm model (R² = 0.7297) provided a better fit than the Freundlich model (R² = 0.5845), indicating monolayer adsorption behavior with a maximum capacity of 0.1634 mg/g and a favorable separation factor (RL = 0.0057). Sensory evaluation confirmed enhanced color and odor. These findings support the use of CWA as a sustainable and low-cost adsorbent for improving peat water quality. https://e-journal.unipma.ac.id/index.php/cheesa/article/view/22320adsorbentadsorption isothermcoffee wastepeat water treatment |
| spellingShingle | Rahma Amalia Sarah Fiebrina Heraningsih Oki Alfernando Sri Mundarti Muhammad Haviz Nadia Elvina Sonia Nizal Putri Resi Lisma Kinasih Asmara Yuzi Chantika Pratama Ahmad Fadhilah Ashidiqie Coffee Waste as a Potential Adsorbent for Peat Water Treatment CHEESA adsorbent adsorption isotherm coffee waste peat water treatment |
| title | Coffee Waste as a Potential Adsorbent for Peat Water Treatment |
| title_full | Coffee Waste as a Potential Adsorbent for Peat Water Treatment |
| title_fullStr | Coffee Waste as a Potential Adsorbent for Peat Water Treatment |
| title_full_unstemmed | Coffee Waste as a Potential Adsorbent for Peat Water Treatment |
| title_short | Coffee Waste as a Potential Adsorbent for Peat Water Treatment |
| title_sort | coffee waste as a potential adsorbent for peat water treatment |
| topic | adsorbent adsorption isotherm coffee waste peat water treatment |
| url | https://e-journal.unipma.ac.id/index.php/cheesa/article/view/22320 |
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