Integrasi teknologi koagulasi-flokulasi dengan filter silika-karbon aktif up flow sebagai unit pengolah air limbah industri karpet

Aris Mukimin, Agus Purwanto, Cholid Syahroni, Misbachul Moenir, Rame Rame, Agung Budiarto

Abstract


Latek, kapur dan air merupakan bahan utama dalam proses produksi industri karpet. Komposisi dari ketiga bahan tersebut secara berurutan 30%, 50% dan 20% sehingga karakteristik air limbahnya dominan mengandung COD dan TDS. Integrasi koagulasi-flokuasi dengan filter silika-karbon aktif menjadi pilihan yang tepat sebagai unit pengolah polutan tersebut. Unit koagulasi dibuat dalam bentuk tabung silinder dengan kapasitas 2,5 m3, adapun filter silika-karbon aktif ditempatkan dalam dua tabung vertikal dengan kapasitas masing-masing 50 L . Proses koagulasi-fllokulasi dilakukan dengan sistem bacth menggunakan tawas dan anion yang dilanjutkan dengan sedimentasi dan aerasi. Filter vertikal silika-karbon aktif dioperasikan dengan sistem alir kontinyu secara up flow sebagai tahap akhir dari unit pengolahan. Reduksi COD dan DHL telah mampu mencapai 92% dan 74% dengan dosis tawas 1,96 Kg, kapur 0,857 Kg dan anion 1 g untuk volume limbah 2,45 m3 serta laju alir 6 L/menit di filter silika-karbon aktif.

Keywords


karpet, air limbah, lateks, koagulasi, karbon aktif

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DOI: https://doi.org/10.21771/jrtppi.2017.v8.no1.p13-22

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