Removal of Reactive Dyes (Green, Orange, and Yellow) from Aqueous Solutions by Peanut Shell Powder as a Natural Adsorbent
Journal Title: Archives of Hygiene Sciences - Year 2012, Vol 1, Issue 2
Abstract
Abstract: Background & Aims of the Study: Textile dyes generally are made of synthetic, organic, and aromatic compounds that may be contain of some heavy metals in their structure. Complex structure and presence of these metals cause toxicity and may be mutagen, teratogen or carcinogen. This study has investigated the ability of peanut shell powder to removal of some reactive dyes (Green 19, Orange 16, and Yellow 14) from aqueous solutions. Materials & Methods : The effects of contact time, initial concentration of reactive dyes, adsorbent dosage and pH have been reported. The applicability of Langmuir and Freundlich isotherm was tried for the system to completely understand the adsorption isotherm processes. Results: Batch adsorption studies showed that the peanut shell powder was able to remove the reactive dyes from aqueous solutions in the concentration range 25 to 250 mg/L. The highest percent removal for the Green 19, Orange 16, and Yellow 14 dyes was 84.2%, 87.36% and 88.49%, respectively. The adsorption was favored with maximum adsorption at pH=2. Also the optimum adsorbent dose was obtained 0.4 g/100 mL. By increasing adsorbent dose and initial concentration, removal efficiency was increased considerably. The adsorption isotherm studies clearly indicated that the adsorptive behavior of dyes on peanut shell satisfies only the Freundlich with average R 2 =0.926. Conclusions: Based on findings, the peanut shell powder was found as a low cost, natural and abundant availability adsorbent to removal of reactive dyes from aqueous solution.
Authors and Affiliations
Hosein Nadi, Mostafa Alizadeh, Morteza Ahmadabadi, Ahmad Reza Yari, Sara Hashemi
Keywords
Related Articles
- EP ID EP469807
- DOI -
- Views 164
- Downloads 0
Removal of Reactive Dyes (Green, Orange, and Yellow) from Aqueous Solutions by Peanut Shell Powder as a Natural Adsorbent
Abstract: Background & Aims of the Study: Textile dyes generally are made of synthetic, organic, and aromatic compounds that may be contain of some heavy metals in their structure. Complex structure and presence of these...
The Application of Low-Cost Adsorbent for Reactive Blue 19 Dye Removal from Aqueous Solution: Lemna Minor
Background & Aims of the Study: Due to widespread use and adverse effect of dyes, the removal of dyes from effluents is necessary. This study was aimed to remove the reactive blue 19 dye removal from aqueous solution by...
Microbial Contamination of Raw Vegetables in Ahvaz, Iran during 2014-2015
Background & Aims of the Study: Vegetables are useful for humans as they contain minerals, vitamins, fiber and other nutrients. Eating raw vegetables are a nutritional habit in Iranian families. Raw eating vegetables is...
Work-Related Fatigue and the Effective Factors in the Iranian Nurses
Background & Aims of the Study: Nursing is one of the highly stressful jobs. Nurses have to provide health service, in many cases, to the patients with incurable disease. Working in such environment induces severe and pe...
A comparative study of psychological well-being, meta-emotion, and resiliency in fertile and infertile women
Abstract Background & Aims of the Study: According to the high prevalence of mental problems of infertility in infertile women, and the necessity of identifying their mental statuses to carry out interventions in order...