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Title: | Zeolit Cikalong dan Lampung Termodifikasi Asam Fosfat sebagai Adsorben Logam Cd(II) Zeolit cikalong dan lampung termodifikasi asam fosfat sebagai adsorben logam Cd(II) |
Authors: | Rohaeti, Eti Sugiarti, Sri Nopriyani |
Keywords: | zeolite phosphoric acid analysis characteristic adsorption |
Issue Date: | 2011 |
Publisher: | IPB (Bogor Agricultural University) |
Abstract: | Logam berat merupakan salah satu zat pencemar bagi manusia dan lingkungan. Oleh karena itu sebagai suatu zat pencemar perlu suatu perlakuan sebelum dibuang ke perairan, sehingga tidak mengakibatkan pengaruh buruk bagi makhluk hidup dan lingkungan sekitarnya. Logam berat yang memiliki potensi bahaya bagi manusia dan lingkungan diantaranya adalah Cd(II) selain Pb(II) dan Hg(II). Cd(II) banyak dihasilkan dari industri-industri, diantaranya seperti pelapisan logam, industri penambangan dan peleburan, pabrik cat dan zat warna, dan sebagainya. Batas maksimal kandungan kadmium yang diperbolehkan di perairan menurut Peraturan Pemerintah No. 82 tahun 2001 sebesar 0,01 ppm. Menurut Keputusan Menteri Kesehatan RI No. 907 Tahun 2002 persyaratan kesehatan air minum terhadap bahan kimia yang memiliki pengaruh langsung pada kesehatan khususnya kadmium, kadar maksimum yang diperbolehkan adalah 0,003 mg/L. Direct utilization of natural zeolites can not be done because many contain a mixture of (impurities) that it needs treatment first, one to increase the usability of zeolite as an adsorbent is through an increase in its reactivity, which can be done by modifying the surface with a suitable chemical solvent. This study aims to determine the ability of phosporic acid-modified natural zeolite as an absorbent solution of Cd (II) by comparing two different types of zeolite origin. Analysis of samples is conducted by cation exchange capacity (CEC) test, surface area, and characteristics with XRD, SEM-EDS. Tests conducted on the second adsorption zeolite modified by varying the concentration of adsorbate, pH, weight of adsorbent, contact time, and temperature using a shaker speed 150 rpm which was analyzed by AAS. Adsorption of metal ions Cd (II) by two samples of zeolite followed Langmuir isotherm model and tend to follow the pseudo second-order kinetics, spontaneous, and exothermic. |
URI: | http://repository.ipb.ac.id/handle/123456789/56861 |
Appears in Collections: | MT - Mathematics and Natural Science |
Files in This Item:
File | Description | Size | Format | |
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2011nop.pdf Restricted Access | full text | 1.36 MB | Adobe PDF | View/Open |
BAB I PENDAHULUAN.pdf Restricted Access | BAB I | 344.21 kB | Adobe PDF | View/Open |
BAB II TINJAUAN PUSTAKA.pdf Restricted Access | BAB II | 638.9 kB | Adobe PDF | View/Open |
BAB III BAHAN DAN METODE.pdf Restricted Access | BAB III | 385.6 kB | Adobe PDF | View/Open |
BAB IV HASIL DAN PEMBAHASAN.pdf Restricted Access | BAB IV | 961.46 kB | Adobe PDF | View/Open |
BAB V SIMPULAN.pdf Restricted Access | BAB V | 335.43 kB | Adobe PDF | View/Open |
COVER.pdf Restricted Access | Cover | 334.1 kB | Adobe PDF | View/Open |
DAFTAR PUSTAKA.pdf Restricted Access | Daftar Pustaka | 342.08 kB | Adobe PDF | View/Open |
LAMPIRAN.pdf Restricted Access | Lampiran | 417.35 kB | Adobe PDF | View/Open |
RINGKASAN.pdf Restricted Access | Ringkasan | 319.56 kB | Adobe PDF | View/Open |
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