Efek Ozonasi Terhadap Perubahan Dan Penyisihan Senyawa Nitrogen Pada Air Baku Air Minum

Chandra, Raihan Rizki (2024) Efek Ozonasi Terhadap Perubahan Dan Penyisihan Senyawa Nitrogen Pada Air Baku Air Minum. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Air sangat penting untuk kehidupan manusia, ekonomi sosial, dan ekosistem. Kota Surabaya menghadapi masalah tingginya kadar ammonia dalam pasokan air minum, melampaui baku mutu yang ditetapkan. Data RISPAM 2021 menunjukkan kadar ammonia di intake IPAM Karangpilang dan IPAM Ngagel Surabaya berkisar 0,67-2,65 mg/L, jauh melebihi standar 0,1 mg/L. Penelitian ini bertujuan mengevaluasi efek tingkat ozonasi terhadap senyawa nitrogen serta menentukan parameter waktu dan dosis ozon yang optimal. Tahap awal percobaan adalah melakukan uji laboratorium kualitas air baku yang terdiri dari beberapa parameter kunci, yaitu TKN, NH4, NO2, NO3, TSS, COD, pH, dan Kekeruhan. Uji laboratorium dilakukan sebelum dilakukannya ozonasi dan dilakukan kembali setelah dilakukannya ozonasi pada sampel air baku. Ozonasi dilakukan dengan variasi waktu ozonasi (10, 20, dan 30 menit) dan laju alir ozonasi (1, 2, dan 3 L/menit). Berikutnya, dilakukan analisis untuk mengetahui efek perubahan terhadap nitrogen setelah dilakukannya ozonasi. Waktu dan laju alir ozonasi memengaruhi perubahan senyawa nitrogen. Konsentrasi tinggi ammonium, nitrit, dan nitrogen organik akan menghasilkan lebih banyak nitrat dengan peningkatan waktu dan laju alir ozonasi. Meskipun total nitrogen (N) hanya berkurang sedikit, peningkatan waktu dan laju alir ozonasi dapat meningkatkan degradasi NH4, NO2, dan Nitrogen Organik. Namun, mengakibatkan konsentrasi NO3 meningkat sebagai produk dari degradasi tersebut. Hasil optimasi kondisi operasional ozonasi menunjukan bahwa efisiensi removal sebesar 82,56% untuk NH4, 69,31% untuk NO2, 73,96% untuk N-Organik, dan 24,5% untuk total nitrogen (TN) dapat dicapai dengan menerapkan laju alir ozon 1,29 L/menit selama 30 menit.
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Water is crucial for human life, social economy, and ecosystems. Surabaya faces a challenge with high levels of ammonia in its drinking water supply, surpassing the established standards. RISPAM 2021 data indicates that ammonia levels in the intake of IPAM Karangpilang and IPAM Ngagel Surabaya range from 0.67 to 2.65 mg/L, far exceeding the 0.1 mg/L standard. This research aims to evaluate the effect of ozone levels on nitrogen compounds and determine the optimal parameters for ozone dosage and duration. The initial stage of the experiment involves laboratory testing of raw water quality, including key parameters such as TKN, NH4, NO2, NO3, TSS, COD, pH, and Turbidity. Laboratory tests are conducted before and after ozone treatment of raw water samples. Ozone treatment is carried out with variations in ozone treatment time (10, 20, and 30 minutes) and ozone flow rate (1, 2, and 3 L/minute). Subsequently, an analysis is performed to determine the effect of changes in nitrogen compounds after ozone treatment. Ozone treatment time and flow rate influence the changes in nitrogen compounds. Higher concentrations of ammonium, nitrite, and organic nitrogen will result in more nitrate with increased ozone treatment time and flow rate. Although total nitrogen (N) only decreases slightly, increasing ozone treatment time and flow rate can enhance the degradation of NH4, NO2, and Organic Nitrogen, leading to an increase in NO3 concentration as a byproduct of this degradation. The optimization results of ozone operational conditions show that a removal efficiency of 82.56% for NH4, 69.31% for NO2, 73.96% for Organic N, and 24.5% for total nitrogen (TN) can be achieved by applying an ozone flow rate of 1.29 L/minute for 30 minutes.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Air Baku, Ammonium, Nitrit, Nitrogen Organik, Ozonasi, Nitrite, Organic Nitrogen, Raw Water, Ozonation
Subjects:	T Technology > TD Environmental technology. Sanitary engineering T Technology > TD Environmental technology. Sanitary engineering > TD259.2 Drinking water. Water quality
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis
Depositing User:	Raihan Rizki Chandra
Date Deposited:	29 Jan 2024 15:10
Last Modified:	29 Jan 2024 15:10
URI:	http://repository.its.ac.id/id/eprint/105723

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