Penggunaan Kompos Pada Proses Denitrifikasi Air Limbah

Samudro, Ganjar (2007) Penggunaan Kompos Pada Proses Denitrifikasi Air Limbah. Masters thesis, Institut Teknologi Sepuluh November.

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Abstract

Permasalahan air limbah rumah tangga dan industri di Indonesia belum dapat terpecahkan secara menyeluruh, baik di perkotaan maupun di perdesaan. Sebagian besar air limbah rumah tangga dan industri mengandung bahan organik kaya nitrogen (N) yang biodegradable, dan sebagian terdapat dalam bentuk nitrat (NO₃⁻). Konsentrasi nitrat yang berlebih dapat menyebabkan efek negatif, baik pada manusia maupun lingkungan sekitar. Oleh karena itu, nitrat yang berlebih perlu dikendalikan dengan proses reduksi yang disebut denitrifikasi.
Penggunaan kompos dalam penelitian denitrifikasi ini diambil dari dua sumber berbeda. Kompos steril tanpa penambahan mikroba denitrifier dan kompos non-steril dengan penambahan mikroba denitrifier digunakan untuk mendapatkan nilai rasio C:N, konsentrasi nitrat input, dan debit pengolahan yang optimum pada proses denitrifikasi. Rasio C:N kompos divariasikan 10:1, 15:1, dan 20:1. Konsentrasi nitrat input diatur antara 100 mg/L, 200 mg/L, dan 300 mg/L. Sedangkan debit operasi reaktor diatur 0,02 L/jam, 0,04 L/jam, dan 0,08 L/jam.
Hasil penelitian ini didapatkan bahwa rasio C:N kompos yang optimum digunakan pada proses denitrifikasi air limbah adalah 20:1, dengan debit pengolahan 0,02–0,08 L/jam dan konsentrasi nitrat input 100–300 mg/L.
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The problems of domestic and industrial wastewater have not been completely solved in both municipal and rural areas of Indonesia. Much domestic and industrial wastewater contains biodegradable organic matter (BOM) that is rich in nitrogen (N) in several forms, such as nitrate (NO₃⁻). Excessive nitrate (NO₃⁻) needs to be controlled at a concentration level that does not have negative effects on human health through the denitrification process.
Compost used as a carbon source was obtained from two different sources in this denitrification research. Variations of sterilized compost without denitrifying microbes and non-sterilized compost with denitrifying microbes were used to determine the optimum C:N ratio, input nitrate concentration, and operational flow rate for the denitrification process. The C:N ratios of the compost were varied at 10:1, 15:1, and 20:1. The input nitrate concentrations were adjusted to approximately 100 mg/L, 200 mg/L, and 300 mg/L. Meanwhile, the reactor operating flow rates were set at 0.02 L/hour, 0.04 L/hour, and 0.08 L/hour.
The results of this research yielded an optimum compost C:N ratio of 20:1, with an operational flow rate of 0.02–0.08 L/hour and an input nitrate concentration of 100–300 mg/L.

Item Type:	Thesis (Masters)
Additional Information:	RTL 628.357 Sam p
Uncontrolled Keywords:	denitrifikasi, kompos, nitrat, rasio C:N, debit operasi, denitrification, compost, nitrate, C:N ratio, operational flowrate
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD646 Sewage--Purification
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25101-(S2) Master Thesis
Depositing User:	magang .
Date Deposited:	18 Sep 2026 06:31
Last Modified:	18 Sep 2026 06:33
URI:	http://repository.its.ac.id/id/eprint/144676

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