Pengaruh pH dan dosis adsorben dari limbah lumpur aktif industri crumb rubber terhadap kapasitas penyerapan ion Cd(II) dan Zn(II)

Salmariza Sy, Desi Kurniawati, Intan Lestari, H. Harmiwati, Monik Kasman
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引用次数: 3

Abstract

Pernelitian dengan sistim batch telah dilakukan untuk mempelajari pengaruh perlakuan pH larutan dan dosis adsorben yang dibuat dari limbah lumpur aktif industri crumb rubber (LLA-ICR) terhadap kapasitas adsorpsi dan efisiensi penyisihan ion Cd(II) dan Zn(II) dalam larutan.  Pengamatan meliputi variasi pH larutan pada range 1-7 dan dosis adsorben LLA-ICR 0,1 g - 1,0 g. Karakterisasi adsorben sebelum dan sesudah proses adsorpsi dilakukan dengan menggunakan FTIR, XRF dan SEM–EDX. Hasil penelitian menunjukkan bahwa perlakuan pH larutan dan dosis adsorben berpengaruh pada kapasitas adsorpsi dan efisiensi penyisihan ion Cd(II), dan Zn(II).  pH optimum didapatkan pada pH 5. Semakin rendah dosis adsorben, maka semakin tinggi kapasitas adsorpsi namun semakin rendah efisiensi penyisihan ion Cd(II) dan Zn(II).  Dosis adsorben optimum didapatkan pada 0,1g, dengan kapasitas adsorpsi dan efisiensi penyisihan ion Cd(II) > Zn(II). Kapasitas adsorpsi maksimum untuk ion Cd(II) dan  Zn(II) berturut-turut 29,8 mg/g dan 10,3 mg/g. Efisiensi penyisihan maksimum intuk ion Cd(II) dan ion Zn(II) adalah 95,4% dan 87,9%.  Abstract A batch system has been carried out to study the treatment effect of pH solution and adsorbent dosage derived from crumb rubber (LLA-ICR) industrial activated sludge on the adsorption capacity and removal efficiency of Cd(II) and Zn(II) ions in aqueous solution. Observations included variations in the the solution pH in the range 1-7 and the LLA-ICR adsorbent dosage of 0.1 g - 1.0 g. Characterization of the adsorbent before and after the adsorption process was carried out using FTIR, XRF, and SEM-EDX. The results showed that the treatment of the pH solution and the adsorbent dose affected the adsorption capacity and removal efficiency of Cd(II) and Zn(II) ions. The optimum pH was obtained at pH 5. The lower the adsorbent dose the higher the adsorption capacity, however the lower the efficiency removal of Cd(II) and Zn(II) ions. The optimum adsorbent dosage was obtained at 0.1 g with adsorption capacity and removal efficiency of Cd(II) > Zn(II) ions. The maximum adsorption capacity for Cd(II) and Zn(II) ions were 29.8 mg/g and 10.3 mg/g respectively. The maximum removal efficiency forCd (II) and Zn(II) ions were 95.4% and 87.9%.
pH值及adsorben剂量由crumb rubber工业废弃物产生的影响,对Cd(II)和Zn(II)吸收能力的影响
已进行批次系统分解,研究pH溶液治疗和adsorben剂量的影响,这些剂量是由crumb rubber工业废水(LLA-ICR)对溶液吸收能力和效率的排泄(II)和Zn(II)。观察包括长程1-7的pH溶液变异和大剂量的LLA-ICR 0.1 g - 1.0 g。采用FTIR、XRF和SEM——EDX进行之前和之后的adsorben特性。研究结果表明,pH处理和adsorben剂量影响了正离子Cd(II)和Zn(II)排水量和效率。最佳pH值是pH 5。adsorben剂量越低,吸收能力就越高,但离子键设置和Zn(II)效率就越低。获得最佳adsorben剂量为0.1g,具有吸收能力和降低离子键抑制效率(II) > Zn(II)。离子Cd(II)和Zn(II)的最大吸附容量为298 mg/g, 10.3 mg/g。最大抑制因子Cd(II)和Zn(II)的效率为95.4%和87.9%。Abstract系统已被列为研究pH解决方案和adsorsage从crumb - icr中衍生出来的实践污泥。观察包括传播范围1-7的pH值变化和LLA-ICR adsort对0.1 g - 1.0 g的杜意。在处理程序之前和之后,采用FTIR、XRF和semm - edx筛查。其结果表明,pH解决方案和adsorbent剂量影响了Cd(II)和Zn(II) ions的导引。pH值的最佳值是pH 5受阻的。下一种是较高层的腐败行为,下一种是暴力去除Cd(II)和Zn(II) ions。优化adsorbent dosage以Cd(II) > Zn(II) ions的限制为0.1 g。最大的可控制性Cd(II)和Zn(II) ions为29.8 mg/g和10.3 mg/g respey。最大的去除effiency forCd (II)和Zn(II) ions分别是95%的4%和87.9%。
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