MEYLINDA SILVIANA , 1014071039 (2014) ABSTRAK FILTRASI LIMBAH CAIR INDUSTRI TAHU MENGGUNAKAN MEDIA PARTIKEL BATUAN FOSFAT. fakultas pertanian, UNIVERSITAS LAMPUNG.
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Abstract
ABSTRAK Limbah cair industri tahu (whey) memiliki kandungan unsur hara terutama nitrogen dan fosfor yang tinggi. Pembuangan whey langsung ke badan sungai akan menyebabkan pencemaran lingkungan sehingga dibutuhkan pengolahan terlebih dahulu agar aman dibuang ke lingkungan. Penelitian ini bertujuan untuk mengamati pengaruh lama perlakuan filtrasi terhadap kualitas limbah dan juga batuan fosfat sebagai media filter. Metode pengolahan limbah yang digunakan pada penelitian ini adalah biofilter dengan media partikel batuan fosfat. Limbah cair tahu disirkulasi secara kontinyu dengan perlakuan durasi tertentu (3, 6, 12, 24, 36, dan 48 jam). Adapun parameter yang diamati pada penelitian ini meliputi perubahan kualitas pada limbah cair tahu (pH, N-Amonium, Total Solid, P Total) dan kualitas batuan fosfat sebagai media filter (P Terlarut). Hasil penelitian menunjukkan bahwa selama proses filtrasi berlangsung, nilai pH whey yang awalnya asam (4.10) meningkat hingga menjadi basa (8.55) dengan perlakuan filtrasi 48 jam. Pengolahan dengan biofilter batuan fosfat juga mampu mereduksi 45% Total Solid, 70% Ammonium, dan 90% P total pada whey. Nilai P terlarut pada media filter meningkat sebesar 30% dari nilai awal. Kata kunci : batu fosfat, biofilter, limbah cair tahu, pH, ammonium, total solid, P total. ABSTRACT Industrial wastewater of tofu industry (whey) has many nutrient contents, especially nitrogen and phosphorus. Disposal of whey directly into the river can cause environmental pollution, so it should be processed prior to discharging it into the environment. The main purpose of this research was to observe the effect of the filtration duration to the quality of waste and rock phosphate as the filter media. Biofilter with rock phosphate as the filter media was used to filter the whey, which was circulated continously by a pump for specific duration (3, 6, 12, 24, 36, and 48 hours). Parameters should be observed in this research included quality (pH, N-amonium, total solid, total P, dissolved P) of the whey and the rock phosphate as well. Results showed that during the 48 hours filtration process, the pH of whey increased from initially value of 4.10 (acid) to 8.55 (alkaline). The biofilter processing using rock phosphate as filter media was also able to reduce total solid by 45%, ammonium by 70%, and total P by 90% in the whey. The value of dissolved P in the filter media increased by 30% of the initial value. Keywords: phosphate, biofilter, whey, pH, ammonium, total solid, total P.
| Item Type: | Other |
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| Subjects: | A General Works = Karya Karya Umum |
| Divisions: | Fakultas Pertanian > Prodi Teknik Pertanian |
| Depositing User: | A.Md Cahya Anima Putra . |
| Date Deposited: | 01 Dec 2014 08:18 |
| Last Modified: | 01 Dec 2014 08:18 |
| URI: | http://digilib.unila.ac.id/id/eprint/5443 |
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