Adsorption Studies of Cyanide (CN)&lt;sup&gt;-&lt;/sup&gt; on Rice Husk Ash (RHA)

Naeem, Sumra; Zafar, Uzma; Amann, T

doi:10.3329/bjsir.v46i1.3524

Bangladesh J. Sci. Ind. Res.

2011

DOI: 10.3329/bjsir.v46i1.3524

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Adsorption Studies of Cyanide (CN)<sup>-</sup> on Rice Husk Ash (RHA)

Sumra Naeem

Uzma Zafar

T Amann

Abstract: In this investigation, adsorption of cyanide has been studied by means of batch-technique. Percentage adsorption was determined for Rice Husk Ash (RHA)-Cyanide solution system as a function of i) contact time, ii) pH, iii) adsorbate concentration and iv) temperature. Adsorption data has been interpreted in terms of Freundlich and Langmuir equations. Thermodynamics parameters for the adsorption system have been determined at three different temperatures. The value of ΔH°=38.326KJ/mole and ΔG°=-6.117KJ/mole at 2… Show more

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Silicon chemistry for sustainable development of rice agriculture

Karyasa

2018

J. Phys.: Conf. Ser.

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The literature reviewed paper was aimed to explain the role of paddy’s plantation for reserving silica powder, to explain the current developing of advanced materials from the high siliconeous rice plant biomasses, to propose a scheme of value addition of paddy’s biomasses for sustainable rice agriculture development. A comprehensive literature review through meta analysis on articles published in last few decades was conducted. Because of high silicon content of rice biomasses especially rice straws and husks and their abundance in availability, the rich silicon biomasses can be used as raw material for producing a high purity reactive fine powder silica, and unexpesive and environment-friendly production processes. Current development results on advanced materials from the rich siliconeous biomasses were reported, namely silicon carbides, amorphous reactive silica, nanosilica, and silica-carbon nanocomposite. The implementation of silicon chemistry takes important role for enhancing the added value of rice husks and straws as the side products of paddy’s agriculture to produce some advanced materials inexpensively and environment-friendly. The added values can be considered to overcome the problems of lack paddy’s farmer income and the land conversion tendency of rice field, thus the paddy’s agriculture can be developed sustainably.

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Silicon chemistry for sustainable development of rice agriculture

Karyasa

2018

J. Phys.: Conf. Ser.

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Degradation of Acid Cyanide Poison in Rubber Seed (Hevea brasiliensis) after Treatment with Rice Husk Ash

Fortuna

Rahimsyah

Puspitasri

2015

International Journal on Advanced Science, Engineering and Information Technology

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Rubber seed (Hevea brasiliensis) contains protein (17.41 %) and non-essential amino acid cysteine (0.78 %) and acid cyanide poison (186.00 mg/kg). The purpose of this research was to determine the effect of rice husk ash on degradation of acid cyanide in rubber seed. This research used Completely Randomized Design (CRD) using treatment of rice husk ash concentration with 5 levels of treatments (45; 60; 75; 90; 105 %) and 4 replications. The result showed nonsignificant differences (p>0.05) in degradation of acid cyanide level during aging and significant differences (p<0.05) during soaking. Rubber seed treated with 90% of rice husk ash during aging period contained cyanide 47.25 ppm and rubber seed treated with 60% of rice husk ash during soaking period contained cyanide 40.37 ppm.

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Adsorption Studies of Cyanide (CN)<sup>-</sup> on Rice Husk Ash (RHA)

Cited by 2 publications

References 3 publications

Silicon chemistry for sustainable development of rice agriculture

Silicon chemistry for sustainable development of rice agriculture

Degradation of Acid Cyanide Poison in Rubber Seed (Hevea brasiliensis) after Treatment with Rice Husk Ash

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