MARZEFANIA, MERA (2023) PENURUNAN KADAR BOD COD DAN TSS DENGAN METODE AERASI DAN FILTRASI MEDIA ARANG AKTIF BATOK KELAPA PADA LIMBAH CAIR TAHU. Diploma thesis, POLTEKKES KEMENKES SURABAYA.
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Abstract
ABSTRAK Tahu merupakan salah satu makanan favorit di negara Indonesia dan industri tahu adalah salah satu industri yang cukup mempunyai daya tarik kuat untuk dapat dikembangkan di Indonesia. Peningkatan jumlah industri tahu disusul pula dengan peningkatan jumlah air limbah yang semakin banyak. Kadar BOD, COD dan TSS adalah parameter pencemar pada limbah cair industry tahu. Tujuan dari penelitian ini adalah untuk mengetahui penurunan kadar BOD, COD dan TSS pada limbah cair tahu dengan aerasi selama 10 jam, 11 jam, 12 jam dan filtrasi media arang aktif batok kelapa. Penelitian menggunakan rancangan penelitian eksperimen dengan desain praexperiment. Pada penelitian ini populasi yang digunakan adalah seluruh buangan air limbah dari proses produksi tahu milik ibu Siti. Pada penelitian ini menggunakan 3 replikasi dengan jumlah sebanyak 12 sampel. Lokasi penelitian ini terletak di Dusun Jaten, Desa Krajan Kecamatan Parang Kabupaten Magetan Jawa Timur. Berdasarkan hasil penelitian kadar rata-rata BOD, COD dan TSS pada limbah cair tahu sebelum perlakuan aerasi selama 10 jam masih melebihi baku mutu yaitu sebesar BOD 200 mg/l, COD 359,6 mg/l dan TSS 200,3 mg/l. setelah perlakuan aerasi selama 11 jam dan filtrasi kadar rata-rata BOD, COD dan TSS yaitu sebesar BOD 169 mg/l, COD 342,6 mg/l dan TSS 169,6 mg/l dimana kadar tersebut masih melebihi baku mutu. setelah perlakuan aerasi selama 12 jam dan filtrasi kadar BOD, COD dan TSS pada limbah cair tahu mengalami penurunan yang sangat signifikan yaitu sebesar BOD 126,6 mg/l, COD 265,6 mg/l dan TSS 80,3 mg/l dimana kadar tersebut mengalami penurunan hingga dibawah baku mutu. Kesimpulan yang didapat penurunan kadar BOD, COD dan TSS yang paling optimum ditunjukkan pada perlakuan aerasi dengan variasi 12 jam dan filtrasi media arang aktif batok kelapa dengan besar penurunan 36,65 %, 26,08 % dan 59,89 %. Sehingga dapat menurunan kadar BOD, COD dan TSS hingga dibawah baku mutu. Saran penelitian dapat menggunakan metode aerasi jenis yang berbeda, mengubah formasi media filtrasi, mencuci media filtrasi setelah selesai digunakan. Kata Kunci : Air limbah tahu, BOD, COD, TSS, Aerasi, Filtrasi REDUCTION OF BOD COD AND TSS LEVELS BY AERATION AND FILTRATION METHODS OF COCONUT SHELL ACTIVATED CHARCOAL FILTRATION MEDIA IN TOFU LIQUID WASTE Mera Marzefani1, Beny Suyanto2, Sunaryo3 Ministry of Health of the Republic of Indonesia Health Polytechnic of the Ministry of Health Surabaya Sanitation Study Program, Diploma III Program, Magetan Campus Department of Environmental Health Email: mmarzefani@gmail.com ABSTRACT Tofu is one of the favorite foods in Indonesia and the tofu industry is one of the industries that has a strong attraction to be developed in Indonesia. The increase in the number of tofu industries is also followed by an increase in the amount of wastewater. BOD, COD and TSS levels are polluting parameters in tofu industry liquid waste. The purpose of this study was to determine the reduction of BOD, COD and TSS levels in tofu liquid waste by aeration for 10 hours, 11 hours, 12 hours and filtration of coconut shell activated charcoal media. The study used a experiment research design with a pra-experiment design. In this study, the population used was all wastewater discharges from the tofu production process owned by Siti's mother. In this study using 3 replications with a total of 12 samples. The location of this research is located in Jaten Hamlet, Krajan Village, Parang District, Magetan Regency, East Java. Based on the results of the study, the average levels of BOD, COD and TSS in tofu liquid waste before aeration treatment for 10 hours still exceeded the quality standards, namely BOD 200 mg / l, COD 359.6 mg / l and TSS 200.3 mg / l. after aeration treatment for 11 hours and filtration the average levels of BOD, COD and TSS were BOD 169 mg / l, COD 342.6 mg / l and TSS 169.6 mg / l where the levels still exceed quality standards. after aeration treatment for 12 hours and filtration of BOD, COD and TSS levels in tofu liquid waste decreased very significantly, namely BOD 126.6 mg / l, COD 265.6 mg / l and TSS 80.3 mg / l where these levels decreased to below quality standards. The most optimal reduction in BOD, COD and TSS levels was shown in the aeration treatment with a variation of 12 hours and filtration of coconut shell activated charcoal media with a large decrease of 36.65%, 26.08% and 59.89%. So that it can reduce BOD, COD and TSS levels to below quality standards. Research suggestions can use different types of aeration methods, change the formation of filtration media, wash filtration media after completion of use. Keywords : Tofu wastewater, BOD, COD, TSS, Aeration, Filtration
| Item Type: | Thesis (Diploma) |
|---|---|
| Contributors: | Contribution Contributor NIDN/NIDK UNSPECIFIED YULIANTO, BUDI nidn4014076502 UNSPECIFIED SUYANTO, BENY nidn4020016401 UNSPECIFIED SUNARYO, SUNARYO nidn4022116001 |
| Additional Information: | 1360/KTI/2023 / 10KTI2023052 |
| Uncontrolled Keywords: | Air limbah tahu, BOD, COD, TSS, Aerasi, Filtrasi,arang batok kelapa |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering |
| Divisions: | Poltekkes Kemenkes Surabaya > Jurusan Kesehatan Lingkungan > Program Studi DIII Sanitasi Magetan |
| Depositing User: | Endah Widyastuti |
| Date Deposited: | 06 May 2024 04:40 |
| Last Modified: | 06 May 2024 04:40 |
| URI: | http://repo.poltekkesdepkes-sby.ac.id/id/eprint/8369 |
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