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301299

Silver withdrawal from X-Ray waste via leaching and sorption techniques: Appraisal ideal treatment factors

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Environmental chemistry

Abstract

The principal goal of this exploration is to inspect the withdrawal of silver from X-ray waste. Firstly, the impact of some operating parameters on the silver leaching from x-ray utilizing nitric acid as leaching agent such as leaching temperature, incitation speed (rpm), leaching time, and leaching agent concentration was inspected utilizing practical method and mathematical and statistical method. Outcomes acquired detected that, utmost silver ion concentration in leaching solution was 9284.7 mg/kg films (61.9 %) at an ideal conditions of leaching agent concentration, incitation velocity, leaching time, and temperature of 3 M, 400 rpm, 180 minutes, and 75 oC. Multiple regression analysis technique will be applied in an attempt to acquire correlation (R2 = 96.17%). Results demonstrated that there is a complete cohesion between the practical values of silver leaching percentage and expected values. After the leaching process, the sorption technique was applied to treat the silver from leaching solution utilizing sugarcane bagasse as a sorbent treated with sulfuric acid. The sorption technique optimization of silver recovery from the leaching solution was elucidated also using practical method and statistical analysis. Factors influencing the sorption process are sorption time, solution pH, mixing velocity, and a sorbent quantity. The optimal pH value, mixing velocity, and sorbent quantity were 5.37, 200 rpm, and 5 gm, respectively at 60 min. sorption time. Under above ideal factors the sorption silver percent was 96.68%. Kinetic of a sorption were effectively depicted using a pseudo second order model with elevated correlation coefficient (R2 = 99.09 %). Adsorbed silver on sugarcane bagasse surface were explored via SEM-EDX analysis. Finally, Multiple regression analysis technique will be applied in an attempt to acquire correlation for predicting the silver recovery percent. R2 of the attained correlation was 95.56%.

DOI

10.21608/ejchem.2023.206887.7889

Keywords

X-ray waste, Leaching, sorption, recovery, Sugarcane bagasse

Authors

First Name

Heba

Last Name

Abd El Gawad

MiddleName

Ali

Affiliation

Department of Engineering Mathematics and Physics, Higher Institute of Engineering, El-Shorouk Academy, Cairo, Egypt

Email

hebaabdelgawad8@gmail.com

City

Egypt

Orcid

-

First Name

Hamdy

Last Name

Zahran

MiddleName

-

Affiliation

Fats and Oils Dept., Food Industries and Nutrition Research Institute, National Research Centre, Dokki, Cairo, Egypt

Email

hazahran23@gmail.com

City

-

Orcid

0000-0003-2500-8378

Volume

66

Article Issue

5

Related Issue

41550

Issue Date

2023-05-01

Receive Date

2023-04-19

Publish Date

2023-05-01

Page Start

509

Page End

522

Print ISSN

0449-2285

Online ISSN

2357-0245

Link

https://ejchem.journals.ekb.eg/article_301299.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=301299

Order

301,299

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Silver withdrawal from X-Ray waste via leaching and sorption techniques: Appraisal ideal treatment factors

Details

Type

Article

Created At

30 Dec 2024