Yunanda, Salsabila Septina (2019) Pengolahan Lindi Sayuran Rumah Kompos Keputran dengan Proses Koagulasi-Flokulasi-Oksidasi Menggunakan Alum-PAC-Kaporit. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Rumah Kompos Keputran memiliki jumlah timbulan sampah sayuran yang besar yaitu ± 22,14 m3/hari. Rata-rata komposisi sampah terbesar yaitu jenis sampah sayuran dengan persentase komposisi sampah tiap harinya mencapai 94,65%. Debit lindi sampah sayuran yang dihasilkan yaitu sebesar 3,85 m3/hari. Konsentrasi polutan yang terdapat pada lindi sayuran, antara lain: TSS = 11.780 mg/L; COD = 26.700 mg/L; BOD = 16.288 mg/l dan NH3-N = 2.113,21 mg/L. Lindi yang dihasilkan tidak dilakukan pengolahan melainkan langsung dibuang ke saluran drainase yang terdapat di depan bangunan rumah kompos. Lindi yang meresap ke dalam tanah berpotensi menyebabkan efek negatif untuk habitat, lingkungan bahkan kesehatan manusia. Oleh karena itu tujuan dari penelitian ini yaitu: menentukan dosis optimum koagulan alum dan polimer PAC pada proses koagulasi dua tahap untuk menurunkan konsentrasi parameter pencemar lindi; menentukan dosis optimum oksidator kaporit pada proses oksidasi untuk menurunkan konsentrasi parameter pencemar lindi serta menentukan tingkat penyisihan (%) konsentrasi parameter pencemar lindi dengan proses koagulasi-flokulasi-oksidasi. Pada penelitian ini terlebih dahulu dilakukan tahap penentuan dosis optimum optimum alum, PAC dan kaporit. Pada tahap penentuan dosis optimum alum diperoleh dosis optimum alum yaitu 1,5 g/L yang mampu menghasilkan tingkat penyisihan (%) konsentrasi pencemar lindi, meliputi: 30,9% PV; 93,1% kekeruhan; 6,3% warna; 60,9% TSS; 87% fosfat; 31,6% amonium; 10,7 TKN dan 16% COD. Sedangkan untuk PAC diperoleh dosis optimum sebesar 2 gram/L yang mampu menghasilkan tingkat penyisihan (%) konsentrasi pencemar lindi, yaitu: 53,3% PV; 16,8% COD; 5,5% TKN dan 99,7% kekeruhan. Proses koagulasi dua tahap dengan dosis alum dan PAC sebesar 1,5 g/L dan 2 g/L mampu menghasilkan tingkat penyisihan (%) konsentrasi pencemar lindi, meliputi: 43,0% PV; 97,7% kekeruhan; 62,7% warna; 10,7% COD; 15,7% TKN; 87,1% fosfat; 0,35% amonium dan 98,5% TSS. Volume lumpur dari hasil proses koagulasi dua tahap ini yaitu mencapai 203 mL, sehingga cukup efisien dalam mengolah lindi sayuran. Pada proses oksidasi menggunakan dosis optimum kaporit sebanyak 30 g/L dan mampu menghasilkan tingkat efisiensi, antara lain: 19,4% COD; 56% kekeruhan; 11,1% warna; 75,5% PV; 17,3% amonium dan 17,3% fosfat. Proses koagulasi-flokulasi-oksidasi mampu menurunkan konsentrasi pencemar lindi, meliputi: 43,2% COD; 86,4% kekeruhan; 82% warna; 84% PV; 17,6% amonium; 89,4% fosfat dan 21,7% TSS.
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Keputran Compost House has a large amount of vegetable waste generation which is ± 22,14 m3/day. The average composition of the largest waste is the type of vegetable waste with the percentage composition of waste each day reaching 94,65%. Leachate produced from vegetable waste is equal to 3.85 m3/ day. The concentration of pollutants found in vegetable leachate, among others: TSS = 11.780 mg/L; COD = 26.700 mg/L; BOD = 16.288 mg/L and NH3-N = 2.113,21 mg/L. Leachate produced is not processed but is immediately disposed of into the drainage canal in front of the compost house. Leachate which seeps into the soil has the potential to cause negative effects for habitat, environment and even human health. Therefore the purpose of this study is to determine the optimum coagulant dose of PAC alum and polymer in the two-stage coagulation process to reduce the concentration of leachate pollutant parameters; determine the optimum dose of caporite oxidizer in the oxidation process to reduce the concentration of leachate pollutant parameters and determine the level of removal (%) concentration of leachate pollutant parameters by the coagulation-flocculation-oxidation process. In this study, a preliminary stage was conducted in advance to determine the optimum dose of alum, PAC and caporite. In the optimum dosage determinatination of alum, which was 1.5 g/L which was able to produce a level of removal (%) of leachate pollutant concentration, including: 30,9% PV; 93,1% turbidity; 6,3% color; 60,9% TSS; 87% phosphate; 31,6% ammonium; 10,7 TKN dan 16% COD. As for PAC, the optimum dose of 2 g/L was obtained which was able to produce a level of removal (%) of leachate pollutant concentration, namely: 53,3% PV; 16,8% COD; 5,5% TKN and 99,7% turbidity. The two-stage coagulation process with a dose of alum and PAC of 1,5 g/L and 2 g/L was able to produce a removal rate (%) of leachate pollutant concentration, including: 43,0% PV; 97,7% turbidity; 62,7% color; 10,7% COD; 15,7% TKN; 87,1% phosphate; 0,35% ammonium and 98,5% TSS. The volume of sludge from the results of this two-stage coagulation-flocculation process is 203 mL, so it is quite efficient in processing vegetable leachate. The oxidation process produces an optimum dose of 30 g/L caporite and is able to produce efficiency levels, including: 19,4% COD; 56% turbidity; 11,1% color; 75,5% PV; 17,3% amonium and 17,3% phosphate. The coagulation-flocculation-oxidation process can reduce some pollutant concentration of leachate, including: 43,2% COD; 86,4% turbidity; 82% color; 84% PV; 17,6% ammonium; 89.4% phosphate and 21,7% TSS.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSL 628.42 Yun p-1 2019 |
| Uncontrolled Keywords: | Alum Coagulant, Caporite Oxidizer, Coagulation-Flocculation and Oxidation, PAC Polymer |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD455 Chemical precipitation. Coagulation. Flocculation. Water--Purification--Flocculation. |
| Divisions: | Faculty of Civil, Environmental, and Geo Engineering > Environmental Engineering > 25201-(S1) Undergraduate Theses |
| Depositing User: | Salsabila Septina Yunanda |
| Date Deposited: | 26 Feb 2024 02:33 |
| Last Modified: | 26 Feb 2024 02:33 |
| URI: | http://repository.its.ac.id/id/eprint/66889 |
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