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POTENSI ZEOLIT ALAM SEBAGAI MEDIA PENYERAPAN LOGAM BERAT KROMIUM (Cr) YANG TERKANDUNG DALAM LIMBAH CAIR INDUSTRI PENYAMAKAN KULIT | Cahyadi | Jurnal Teknologi Pengelolaan Limbah

POTENSI ZEOLIT ALAM SEBAGAI MEDIA PENYERAPAN LOGAM BERAT KROMIUM (Cr) YANG TERKANDUNG DALAM LIMBAH CAIR INDUSTRI PENYAMAKAN KULIT

Cahyadi Cahyadi, Asrul Sahri Siregar, Nuning Vita Hayati

Sari


POTENSI ZEOLIT ALAM SEBAGAI MEDIA PENYERAPAN LOGAM BERAT KROMIUM (Cr) YANG TERKANDUNG DALAM LIMBAH CAIR INDUSTRI PENYAMAKAN KULIT. Potensi Zeolit Alami Sebagai Media Penyerapan Logam Berat Kromium (Cr) yang Terkandung dalam Limbah Cair Industri Penyamakan Kulit. Kromium (Cr) dalam limbah cair industri penyamakan kulit merupakan sumber pencemar yang dapat menurunkan kualitas air sungai. Dampak Kromium bagi biota perairan bersifat kronis. Mengingat besarnya dampak yang ditimbulkan, maka limbah tersebut perlu diolah secara khusus. Penelitian ini bertujuan untuk mengetahui kemampuan zeolit alam untuk menurunkan kadar Kromium (Cr), mengetahui zeolit alam yang paling efektif, dan apakah hasil pengolahan limbah cair menggunakan zeolit alam sesuai dengan standar baku mutu. Penelitian dilaksanakan pada bulan Juli 2010. Rancangan percobaan yang digunakan adalah rancangan acak lengkap (RAL) dengan 4 perlakuan dan 6 ulangan. Data yang diperoleh dari hasil pengukuran kadar Cr-total dianalisis dengan uji F dan dilanjutkan dengan Uji Beda Nyata (UBN) dengan BNT . Hasil penelitian menunjukkan zeolit dapat menurunkan kadar Kromium (Cr) pada limbah cair industri penyamakan kulit dengan penurunan Cr-total berkisar 0,965 – 1,213 ppm (50,04 – 62,91%) dengan rata-rata 1,083 ± 0,124 ppm (56,19 ± 6,47%). Zeolit Tasikmalaya merupakan zeolit yang paling efektif dalam menurunkan kadar Cr-total sebesar 1,213 ± 0,144 ppm (62,93 ± 7,46%). Pengolahan limbah cair industri penyamakan kulit menggunakan zeolit sesuai dengan standar baku mutu air limbah. Kata kunci: Limbah cair penyamakan kulit, Kromium (Cr), dan zeolit. Natural Zeolite Potency as Absorbtion Media of Chromium Heavy Metal (Cr) Which Contained in Leather Tanning Industrial Liquid Waste Water. Chromium (Cr) in leather tanning industrial liquid waste water is a source of pollutant which can reduce river water quality. Chromium impact for aquatic organisms have the character of chronic. The aim of this research are to know the ability of zeolite to reduce Chromium, zeolite that is most effective, and whether the result of waste water treatment using zeolite in accordance with quality standards. This research was done in July 2010. Experimental design was applied the completely randomized design (RAL) with 4 treatments and 6 replicates. Data obtained from measurement of chromium of all treatment was analyzed by Anova, and continued with Least Significant Differences Test. The result showed that zeolite can reduce chromium concetration with decreasing of total chromium around 0.965 – 1.213 mg/L (50.04 – 62.91%) with an average of 1.083 ± 0.124 mg/L (56.19 ± 6.47%). Zeolite Tasikmalaya is zeolite that is most effective in reducing chromium rate is 1.213 ± 0.144 mg/L (62.93 ± 7.46%). Waste treatment of leather tanning industrial waste water using zeolite is suitable to quality standard of waste water. Keywords: leather tanning waste water, Chromium (Cr), dan Zeolite.

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