Removal of cadmium ions from polluted waters using low-cost adsorbents: process optimization study
Authors:
- Piotr Kucharski,
- Barbara Białecka,
- Maciej Thomas
Abstract
In this study, attempts were made to optimize the sorption process of cadmium ions by a mixture of low-cost adsorbents such as poultry litter and char. The optimization study was performed using the response surface methodology and the central composite design (CCD). The parameters such as the initial concentration of cadmium ions (c o), the initial pH and the weight ratio of poultry litter to char were selected as variables in the CCD. The introduced data allowed the creation of a model of the dependence of the sorption capacity of cadmium ions with initial parameters. Thanks to the developed model, optimal values of the sorption process were obtained at the level of pH = 5.05, c o = 105 mg/L and a poultry litter/char ratio of 0.79 (w/w). The optimal sorption values for the obtained parameters were tested for four types of samples: deionized water, river water and water extracts from waste and soil. The obtained results indicated high compliance of the cadmium ion sorption predicted by the model in the case of the model sample (deionized water). In the remaining cases, the sorption capacity of the adsorbent decreased depending on the sample used, in the following order: soil water extract > river water > waste water extract. The research showed the potential of the mixture of poultry litter and char as a low-cost adsorbent.
- Record ID
- CUT3e7821effb694f7c9d7519330420515a
- Publication categories
- ;
- Author
- Journal series
- Desalination and Water Treatment, ISSN 1944-3994, e-ISSN 1944-3986
- Issue year
- 2022
- Vol
- 256
- Pages
- 114-124
- Other elements of collation
- tab.; wykr.; Bibliografia (na s.) - 123-124; Bibliografia (liczba pozycji) - 53; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 256
- Keywords in English
- sorption, response surface methodology, cadmium, design of experiments, low-cost adsorbent, water pollution, optimization
- ASJC Classification
- ; ;
- DOI
- DOI:10.5004/dwt.2022.28375 Opening in a new tab
- URL
- https://www.deswater.com/home.php Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 100
- Score source
- journalList
- Score
- Publication indicators
- Citation count
- 3
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT3e7821effb694f7c9d7519330420515a/
- URN
urn:pkr-prod:CUT3e7821effb694f7c9d7519330420515a
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.