Efektifitas Media Penukar Ion Zeolit Dan Ferolit Dalam Menurunkan Kadar Fe Air Sumur

Sri Mulyono, Wiwiek Mulyani, Ferry Kriswandana

Abstract


The quality of clean water and drinking water is greatly influenced by the type of soil and pollution of raw water. Groundwater often contains large amounts of iron (Fe) and manganese (Mn). The presence of Fe and Mn in water causes the water to turn brownish yellow after a while of contact with air. In the Keerom Regency area there are still many clean water facilities whose quality does not meet the health requirements, based on preliminary data in the Pir I Arso City area, the chemical quality of water has not met the requirements, namely very high Fe levels found Fe levels of 4.629 mg / liter which exceed levels maximum. To reduce Fe levels in well water, it is necessary to do research. Whether each ion exchange medium with different thicknesses is effective in reducing Fe levels in well water, it is necessary to make a contact filtration design with zeolite and ferolite media which is believed to reduce Fe levels in well water. This type of research is an experiment with a pretest-posttest design with a control group design. The material used in this study was an experimental pretest-posttest design with a control group design. The materials used in this study were ion exchange media in the form of zeolite, resin and ferolite, resident water in Arso PIR II. The data collected were primary data, namely Fe levels before and after going through contact filtration treatment. The data were analyzed statistically by means of paired test, ANOVA and linear regression, the error rate was set at α <0.05. The results showed that the average Fe levels of raw water was 3.95 mg / liter after filtering using ferolite media decreased to 0.10 mg / liter or decreased 97.0%, zeolite media decreased to 0.56 mg / liter or 85.8% while control fell 14.2%. Statistical analysis, there were significant differences between ferolite, zeolite and control media p = 0.000. The ferolite media thickness was 0.6 liter / second / 6 l medium was the most effective medium to reduce Fe levels. The conclusion of this study is that the filtration process using zeolite and ferolite media is proven to be effective in reducing Fe levels in well water. Thus, the filtration process with zeolite and ferolite media can be recommended to reduce the high Fe levels in raw water, so that the water meets the requirements for daily needs.
Keywords: Fe levels; well water; media type; media thickness

ABSTRAK

Kualitas air bersih dan air minum sangat dipengaruhi oleh jenis tanah dan pencemaran yang terhadap air baku. Air tanah sering mengandung zat besi (Fe) dan Mangan (Mn) cukup besar. Adanya kandungan Fe dan Mn dalam air menyebabkan warna air tersebut berubah menjadi kuning kecoklatan setelah beberapa saat kontak dengan udara. Di wilayah Kabupaten Keerom masih banyak terdapat sarana air bersih yang kualitasnya belum memenuhi syarat syarat kesehatan, berdasarkan data pendahuluan di wilayah Pir I Arso Kota, kualitas kimia air belum memenuhi syarat yaitu kadar Fe yang sangat tinggi ditemukan kadar Fe 4,629 mg/liter yang melebihi kadar maksimum. Untuk menurunkan kadar Fe air sumur perlu dilakuakan penelitian. Apakah masing-masing media penukar ion dengan ketebalan yang berbeda-beda efektif menurunkan kadar Fe dalam air sumur, diperlukan pembuatan rancang bangun filtrasi kontak dengan media zeolit dan ferolit diyakini dapat menurunkan kadar Fe dalam air sumur. Jenis penelitian ini adalah eksperimen dengan rancangan pretest-posttesst with control group desain. Bahan yang digunakan dalam penelitian ini adalah eksperimen dengan rancangan pretest-posttest with control group desain. Bahan yang digunakan dalam penelitian ini adalah media penukar ion berupa zeolit, resin dan ferolit, air penduduk di Arso PIR II. Data yang dikumpulkan adalah data primer yaitu kadar Fe sebelum dan sesudah melalui perlakuan filtrasi kontak. Data dianalisa secara statistik dengan uji paired test, anova dan regresi linear, tingkat kesalahan yang dietapkan α<0,05. Hasil penelitian menunjukkan rata-rata kadar Fe air baku adalah 3,95 mg/liter setelah dilakukan penyaringan menggunakan media ferolit turun menjadi 0,10 mg/liter atau turun 97,0%, media zeolit turun menjadi 0,56 mg/liter atau 85,8% sedangkan control turun 14,2 %. Analisis statistik terdapat perbedaan yang bermakna antara media ferolit, zeolit dan control p=0,000. Ketebalan media ferolit 0,6 liter/detik/6 l media merupakan media yang paling efektif menurunkan kadar Fe. Kesimpulan penelitian ini adalah proses filrasi dengan menggunakan media zeolit dan ferolit terbukti efektif dalam menurunkan kadar Fe dalam air sumur. Dengan demikian proses filrasi dengan media zeolite dan ferolit dapat direkomendasikan dalam penurunan kadar Fe yang tinggi dalam air baku, seingga air tersebut memenuhi syarat untuk keperluan sehari hari.
Kata kunci: kadar Fe; air sumur; jenis media; ketebalan media

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DOI: http://dx.doi.org/10.33846/sf11nk416

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