Kajian Spasial Untuk Penentuan Metode Remediasi Tanah Tercemar Logam Timbal Di Kecamatan Jetis, Kabupaten Mojokerto

Maulana, Ananda Alfan (2019) Kajian Spasial Untuk Penentuan Metode Remediasi Tanah Tercemar Logam Timbal Di Kecamatan Jetis, Kabupaten Mojokerto. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Peningkatan persentase pencemaran tanah wilayah desa di Provinsi Jawa Timur pada tahun 2011 hingga 2014 disebabkan oleh berbagai faktor. Salah satu faktor yang menyebabkan peningkatan persentase pencemaran tanah yaitu meningkatnya kegiatan industri pada wilayah desa yang membuat pertumbuhan dan aktifitas penduduk juga meningkat. Kecamatan Jetis merupakan salah satu wilayah yang padat akan kegiatan industri dimana terdapat ± 5 pabrik besar dengan kegiatan industri yang padat. Limbah dari sisa kegiatan industri tersebut terindikasi mencemari tanah disekitarnya. Penelitian terdahulu menyebutkan sebuah air sumur warga desa pada kecamatan jetis yaitu desa Lakardowo memiliki konsentrasi logam berat Pb, Fe, dan Mn yang melebihi baku mutu. Logam Pb merupakan logam berat yang terbilang universal dari segi sumber karena dapat ditemukan dari berbagai sumber seperti industri pelapisan logam, industri besi baja, industri listrik, industri penampungan limbah B3, buangan gas kendaaraan bermotor, dan aktifitas domestik warga.
Terdapat 2 aspek dalam penelitian kali ini, yaitu aspek teknis dalam pembuatan peta persebaran logam Pb dalam tanah di Kecamatan Jetis dengan penerapan Sistem Informasi Geografis (SIG) dan aspek penyusunan pembiayaan teknologi remediasi tanah tercemar logam Pb. Dalam pembuatan peta persebaran logam Pb , dibutuhkan data konsentrasi logam Pb dalam tanah diseluruh wilayah Kecamatan Jetis. Data konsentrasi tersebut diperoleh dari hasil analisa laboratorium. Dengan menggunakan metode transect dengan jarak 1 km x 1 km, yang disebar rata keseluruh wilayah Kecamatan diperoleh 63 titik pengambilan sampel tanah. Pada tiap titik sampel tersebut akan diambil menggunakan Ring Sampling sedalam 20 cm kedalam tanah. Tanah pada setiap titik sampel akan diekstrak terlebih dahulu sebelum dianalisis. Metode ekstraksi menggunakan metode pencernaan asam (Wet-Digestion) dan pengekstrakan EDTA. Setelah diekstraksi, sampel selanjutnya akan dianalisis menggunakan metode AAS (Atomic Absorp Spectrophotometry) untuk memeperoleh kosentrasi logam Pb pada tiap titik sampel.
Hasil analisa laboratorium menunjukkan dari 63 titik sampel, titik sampel dengan konsentrasi tertinggi berada pada titik sampel 52 dengan konsentrasi 80,59 mg/kg, sedangkan konsentrasi terendah yaitu pada titik sampel 7 dengan konsentrasi sebesar 3,13 mg/kg. Hasil analisa konsentrasi logam Pb pada tiap titik akan dibuatkan Peta Persebaran Konsentrasi Logam Pb dalam Tanah di Kecamatan Jetis dengan menggunakan perangkat lunak ArcGIS. Persebaran konsentrasi logam timbal pada Kecamatan Jetis terbilang menyeluruh dengan kosentrasi yang berfluktuatif dikarenakan banyaknya sumber kontaminan logam berat timbal (Pb). Terdapat 3 Kelurahan yang akan diremediasi yaitu Penompo, Canggu dan Mlirip dengan menggunakan 2 metode yaitu enchanced bioremediation dengan biochar dan fitoremediasi dengan tanaman bayam cabut. Biaya yang harus diinvestasikan untuk masing-masing metode adalah Rp 1,356,222,400 untuk biochar dan Rp 10,887,871,000 untuk fitoremediasi
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The increase in the percentage of land pollution in rural areas in East Java Province in 2011 to 2014 was caused by various factors. One of the factors that led to an increase in the percentage of land pollution was the increase in industrial activities in rural areas which made population growth and activity also increase. Jetis Subdistrict is one of the densely populated areas of industrial activity where there are ± 5 large factories with dense industrial activities. Waste from the remaining industrial activities is indicated to contaminate the surrounding soil. Previous research stated that a village well water in the jetis sub-district, Lakardowo village had concentrations of heavy metals Pb, Fe, and Mn which exceeded the quality standard. Pb metal is a heavy metal that is fairly universal in terms of its source because it can be found from various sources such as the metal coating industry, steel industry, electricity industry, B3 waste storage industry, motorized vehicle exhaust and domestic activities.
There are 2 aspects in this study, namely the technical aspects of making a map of the distribution of Pb metal in soil in Jetis Subdistrict with the application of Geographic Information Systems (GIS) and financing aspects of the preparation of PB metal contaminated soil remediation technology. In making the Pb metal distribution map, Pb metal concentration data is needed in the soil throughout the Jetis District area. The concentration data is obtained from the results of laboratory analysis. By using the transect method with a distance of 1 km x 1 km, which was spread evenly throughout the District, 63 points of soil sampling were obtained. At each point the sample will be taken using a Ring Sampling as deep as 20 cm into the ground. The soil at each sample point will be extracted first before being analyzed. The extraction method uses the Wet Digestion method and EDTA extraction. After extraction, the next sample will be analyzed using the AAS (Atomic Absorp Spectrophotometry) method to obtain Pb metal concentrations at each sample point.
The results of laboratory analysis showed that from 63 sample points, the highest sample concentrations were at sample point 52 with a concentration of 80.59 mg / kg, while the lowest concentration was at sample point 7 with a concentration of 3.13 mg / kg. The results of the analysis of Pb metal concentration at each point will be made a Map of the Distribution of Pb Metal Concentrations in Soil in Jetis Subdistrict using ArcGIS software. The distribution of lead metal concentration in Jetis Subdistrict is fairly comprehensive with fluctuating concentrations due to the many sources of lead (Pb) heavy metal contaminants. There are 3 villages that will be remediated, namely Penompo, Canggu and Mlirip using 2 methods, namely enhanced bioremediation with biochar and phytoremediation with spinach spinach plants. The costs to be invested for each method are Rp 1,356,222,400 for biochar and Rp 10,887,871,000 for phytoremediation.

Item Type:	Thesis (Other)
Additional Information:	RSL 628.55 Mau k-1 2019
Uncontrolled Keywords:	Budget Planning, Map of Distribution, Pb Concentration, Pb Metals, Remediation
Subjects:	T Technology > TD Environmental technology. Sanitary engineering T Technology > TD Environmental technology. Sanitary engineering > TD192.5 Bioremediation T Technology > TD Environmental technology. Sanitary engineering > TD878.47 Soil remediation
Divisions:	Faculty of Civil Engineering and Planning > Environment Engineering > 25201-(S1) Undergraduate Thesis
Depositing User:	Ananda Alfan Maulana
Date Deposited:	23 May 2023 06:01
Last Modified:	23 May 2023 06:01
URI:	http://repository.its.ac.id/id/eprint/65999

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