Abstract
<p>Gold ore processing method have an impact on water pollution if the waste produced is not managed properly. Chitosan have the ability as an adsorbent, but its effectiveness to absorb cyanide content in gold processing wastewater is unknown. This study aimed to examine the ability of chitosan adsorption on cyanide in the processing of gold ore. The statistic design used was a factorial in-time Completely Randomized Design (CRD) with two repetitions. The analysis carried out consisted of the effect of chitosan concentration on absorbance, pH, TDS, turbidity, cyanide, and the modification effect of chitosan production on absorbance power. The method used in this research was flocculation coagulation method by the jar test.The method was carried out by rapid and slow mixing process with a flocullator. The method was used to determine the best of chitosan type and the best contact time to decrease the concentration of cyanide waste from the processing of gold ore. The results showed that the best concentration of chitosan modified was chitosan modification with swelling crosslink glutaraldehid (GA) in 1000 ppm concentration and using slow mixing contact time for 120 minutes. That chitosan modified significantly adsorp cyanide waste in 90.38%.</p>
Highlights
Emas termasuk ke dalam golongan logam mulia, disebut logam mulia karena jumlahnya yang langka, keindahannya dengan warna kuning mengkilap dan nilai kegunaannya (Aitio et al 2015)
This study aimed to examine the ability of chitosan adsorption on cyanide in the processing of gold ore
The analysis carried out consisted of the effect of chitosan concentration on absorbance, pH, Total Dissolve Solid (TDS), turbidity, cyanide, and the modification effect of chitosan production on absorbance power
Summary
Pemanfaatan kitosan sebagai adsorben sianida limbah pengolahan biji emas. Abstrak Pengolahan bijih emas menggunakan sianida diketahui dapat menimbulkan pencemaran air apabila tidak dikelola dan ditangani dengan baik. Kitosan memiliki kemampuan sebagai adsorben, namun efektivitasnya untuk menyerap kandungan sianida pada air limbah pengolahan emas belum diketahui. Penelitian ini bertujuan untuk menguji kemampuan adsorpsi kitosan terhadap sianida pada pengolahan bijih emas. Analisis yang dilakukan terdiri atas pengaruh konsenstrasi kitosan terhadap daya absorbansi, pH, TDS, turbiditas, sianida, serta pengaruh modifikasi pembuatan kitosan terhadap daya absorbansi. Metode yang digunakan adalah metode koagulasi flokulasi dengan cara jar test, yaitu proses pengadukan cepat dan lambat dengan alat flokulator. Hasil penelitian menunjukkan kitosan terbaik adalah kitosan dengan modifikasi swelling crosslink glutaraldehid (GA) dengan konsentrasi 1.000 ppm dan waktu kontak pengadukan lambat selama 120 menit. Kitosan modifikasi tersebut secara signifikan mampu mengadosrpsi limbah sianida dalam limbah sebesar 90,38%
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
