PENGARUH PROSES AKTIVASI TERHADAP KINERJA ADSORBEN ORGANIK DARI KULIT BUAH MELON DALAM MENYERAP ION LOGAM Cr(III) DARI LIMBAH CAIR INDUSTRI

Sri Martini, Erna Yuliwati

Abstract


Logam berat Cr(III) termasuk polutan yang membahayakan kesehatan manusia dan mahkluk biotik lainnya sehingga limbah industri yang mengandung logam tersebut harus melalui proses pengolahan intensif sebelum dialirkan ke pembuangan akhir, salah satunya melalui proses adsorpsi. Dalam penelitian ini dilakukan adsorpsi ion Cr(III) menggunakan adsorbent yang terbuat dari kulit buah melon sehingga bernilai ekonomis tinggi. Perbandingan perlakuan aktivasi yang terdiri dari aktivasi secara kimia menggunakan KOH, H3PO4, NaOH, dan ZnCl2, aktivasi secara fisika melalui karbonisasi pada temperatur yang bervariasi (200, 300, dan 400 °C) dan aktivasi hybrid dianalisa dan dideskripsikan dengan jelas. Selanjutnya, didapatkan beberapa poin utama yaitu adsorbent yang mendapat perlakuan aktivasi ganda menghasilkan nilai efisiensi penurunan konsentrasi polutan yang lebih tinggi dibanding aktivasi tunggal, aktivasi kimia dengan KOH dan H3PO4 bersifat lebih reaktif di banding menggunakan NaOH dan ZnCl2, sedangkan peningkatan temperatur karbonisasi berbanding lurus dengan laju peningkatan nilai efisiensi penyerapan Cr(III).


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DOI: https://doi.org/10.32502/jd.v4i2.3224

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