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• W3000835547 abstract "Abstract. Testing of mercury levels is conducted in Kutawaringin village, Kutawaringin subdistrict, Bandung district, West Java Province. Testing of mercury levels is done using zeolite. On this test it was conducted with the purpose of knowing the levels of mercury contained in gulundung , settling pond 2, settling pond 3, titik sungai 1, and titik sungai 2. In addition to this to know the size and weight of the zeolite used, as well as the decrease in mercury levels that occur after using zeolite. The first testing was done by sampling water at 5 location points taken as many as 10 samples and 3 slurry samples. After sampling, the next stage takes the form of determination of mercury levels, pH and Total Dissolved Solid (TDS) to correlate with threshold values corresponding to K eputusan Menteri No.202 Tahun 2004 . If the resulting mercury levels exceed the threshold value, then it is further done management using zeolite. Testing was done using zeolites with a sum of 30 grams, 35 grams and 40 grams. Whereas the contact time between zeolites with wastewater for 7 hours, 8 hours, and 9 hours. From the second test, it was sampled water and then performed testing of mercury levels values to find out the value of the decrease that occurred in the use of zeolites. Based on the results of the test, the decrease in mercury levels occurred very significantly with a percentage of 96.74% from 0.06284 mg/L to 0.000205 mg/L with a zeolite weight of 30 grams and a contact time of 9 hours and is below the mercury threshold value allowed to flow in the river according to Keputusan Menteri Lingkungan Hidup No. 202 Tahun 2004 was 0,005 mg/L. Keywords: Management, Wastewater, Gold Mines, Mercury, Zeolite Abstrak. Pengujian kadar merkuri dilakukan di desa Kutawaringin, kecamatan Kutawaringin, kabupaten Bandung, Provinsi Jawa Barat. Pengujian kadar merkuri dilakukan dengan menggunakan zeolit. Pada pengujian ini dilakukan dengan tujuan untuk mengetahui kadar merkuri yang terdapat di gulundung, settling pond 2, settling pond 3, titik sungai 1 dan titik sungai 2. Selain itu untuk mengetahui ukuran dan berat zeolit yang digunakan, serta penurunan kadar merkuri yang terjadi setelah menggunakan zeolit. Pengujian awal dilakukan dengan pengambilan sampel air di 5 titik lokasi yang diambil sebanyak 10 sampel dan 3 sampel slurry . Setelah pengambilan sampel, tahapan selanjutnya berupa penentuan kadar merkuri, pH dan Total Dissolved Solid (TDS) untuk dikorelasikan dengan nilai ambang batas yang sesuai dengan Keputusan Menteri No. 202 tahun 2004. Jika kadar merkuri yang dihasilkan melebihi nilai ambang batas, maka selanjutnya dilakukan pengelolaan dengan menggunakan zeolit. Pengujian dilakukan dengan menggunakan zeolit dengan jumlah 30 gram, 35 gram dan 40 gram. Sedangkan waktu kontak antara zeolit dengan air limbah selama 7 jam, 8 jam, dan 9 jam. Dari pengujian kedua, diambil sampel air dan kemudian dilakukan pengujian nilai kadar merkuri untuk mengetahui nilai penurunan yang terjadi pada penggunaan zeolit. Berdasarkan hasil pengujian yang dilakukan, penurunan kadar merkuri terjadi sangat signifikan dengan persentase 96,74% dari 0,06284 mg/L menjadi 0,00205 mg/L dengan berat zeolit 30 gram dan waktu kontak 9 jam dan berada dibawah nilai ambang batas merkuri yang diperbolehkan untuk mengalir di sungai menurut Keputusan Menteri Lingkungan Hidup No. 202 tahun 2004 adalah 0,005 mg/L. Kata Kunci: Pengelolaan, Air Limbah, Tambang Emas, Merkuri, Zeolit." @default.
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• W3000835547 date "2020-01-26" @default.
• W3000835547 modified "2023-09-23" @default.
• W3000835547 title "Studi Pemanfaatan Zeolit sebagai Penyerap Merkuri pada Air Limbah Pengolahan Emas di Desa Kutawaringin, Kecamatan Kutawaringin, Kabupaten Bandung, Provinsi Jawa Barat" @default.
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