Pengolahan Air Bersih Menggunakan Biomassa Batang Pisang Sebagai Koagulan

Maulana, Ariel (2024) Pengolahan Air Bersih Menggunakan Biomassa Batang Pisang Sebagai Koagulan. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Air sungai yang digunakan sebagai sumber pasokan air minum seringkali terkontaminasi oleh berbagai zat berbahaya sehingga menurunkan kualitas air minum. Oleh karena itu, dibutuhkan proses pengolahan air minum yang dapat mengeliminasi zat berbahaya di dalamnya serta menjaga kualitas air minum. Proses pengolahan air minum terdiri dari berbagai proses, diantaranya koagulasi, flokulasi, sedimentasi, dan filtrasi. Penggunaan bahan kimia dalam proses koagulasi diketahui dapat menyebabkan berbagai gangguan kesehatan pada manusia dan merusak ekosistem lingkungan sehingga perlu dicari alternatif pengganti bahan kimia tersebut. Penelitian ini bertujuan untuk membuat biomasa batang pisang sebagai biokoagulan alternatif dalam proses pengolahan air. Biomasa batang pisang berhasil dibuat melalui proses penjemuran selama satu minggu dan pengeringan dalam oven selama 60 oC selama 6 jam. Hasil karakterisasi FTIR mengkonfirmasi biomassa ini mengandung gugus hidroksil (O-H), hidrokarbon (C-H), karboksil (COO- double bond), karboksilat (-COOH), amine (C-N), dan C-O. Penelitian ini juga mengaplikasikan biomassa batang pisang sebagai biokoagulan dalam proses pengolahan air Sungai Cipaku. Evaluasi variasi dosis biokoagulan dan waktu settling menunjukkan dosis dan waktu settling optimum masing-masing sebesar 5 mg/L dan 90 menit. Keadaan optimum tersebut berhasil menurunkan nilai beberapa parameter kualitas air, seperti kekeruhan 4,44 NTU, pH 7,92, TDS 68,00 mg/L, DHL 135,30 μS/cm, CO2 5,87 mg/L, HCO3- 80,52 mg/L, Cl- 4,30 mg/L, Ca2+ 17,07 mg/L, CaCO3 55,61 mg/L, SO42- 4,87 mg/L, Mn 0,01 mg/L, dan zat organik 1,21 mg/L. Hasil tersebut memenuhi standar Peraturan Menteri Kesehatan Republik Indonesia Nomor 492 tahun 2010 tentang standar air minum
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River water used as a source of drinking water supply is often contaminated by various dangerous substances, thereby reducing the quality of drinking water. Therefore, a drinking water treatment process is needed that can eliminate harmful substances in it and maintain the quality of drinking water. The drinking water treatment process consists of various processes, including coagulation, flocculation, sedimentation, and filtration. The use of chemicals in the coagulation process is known to cause various health problems in humans and damage the environmental ecosystem, so it is necessary to look for alternatives to these chemicals. This research aims to make banana stem biomass as an alternative biocoagulant in the water treatment process. Banana stem biomass was successfully made through a drying process for one week and drying in an oven at 60 oC for 6 hours. FTIR characterization results confirm that this biomass contains hydroxyl (O-H), hydrocarbon (C-H), carboxyl (COO- double bond), carboxylate (-COOH), amine (C-N), and C-O groups. This research also applies banana stem biomass as a biocoagulant in the Cipaku River water treatment process. Evaluation of variations in biocoagulant dose and settling time showed that the optimum dose and settling time were 5 mg/L and 90 minutes, respectively. This optimum condition succeeded in reducing the values ​​of several water quality parameters, such as turbidity 4.44 NTU, pH 7.92, TDS 68.00 mg/L, DHL 135.30 μS/cm, CO2 5.87 mg/L, HCO3- 80.52 mg/L, Cl- 4.30 mg/L, Ca2+ 17.07 mg/L, CaCO3 55.61 mg/L, SO42- 4.87 mg/L, Mn 0.01 mg/L, and substances organic 1.21 mg/L. These results meet the standards of the Republic of Indonesia Minister of Health Regulation Number 492 of 2010 concerning drinking water standards.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Batang Pisang, Flokulasi, Koagulan, Koagulasi, Banana stem, Flocculation, Coagulant, Coagulation
Subjects:	Q Science Q Science > QD Chemistry Q Science > QD Chemistry > QD547 Flocculation, precipitation, adsorption, etc.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Ariel Maulana
Date Deposited:	13 Sep 2024 05:09
Last Modified:	13 Sep 2024 05:09
URI:	http://repository.its.ac.id/id/eprint/115632

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