Sorption of the Simplest Carboxylic Acids on Clay-Like Mineral Glauconite: Reduction of Integral Toxicity of Aqueous Solutions

Authors

  • L.E. Tsygankova Derzhavin State University, ul. Internatsyonalnaya, 33, Tambov, 392000, Russian Federation

Keywords:

Organic acids, biodegradability, oxygen consumption, sorption, glauconite.

Abstract

The integral toxicity of solutions of a number of carboxylic acids was estimated by measuring their chemical oxygen consumption (COC) and the biochemical oxygen demand for the biodegradation of substances due to microorganisms (BOD5). The analytical dependences of COC and BOD5 as well as of their ratio for these compounds on concentration were determined. The values of COC and BOD5 for a number of acid solution mixtures were measured. The coefficient that indicates biodegradability of substances has been calculated. The chemical consumption of oxygen by solutions of organic acids is shown to increase with the transition from lower to higher homologues and with increase in the concentration of the solution.

The kinetics and degree of removal of organic acids out of solutions due to sorption on the clay-like mineral, glauconite, have been studied. Glauconite that is the natural sorbent is characterized by a high adsorbing power in solutions of organic acids under both stationary and non-stationary conditions. However, adsorption becomes complicated as complexity of the organic acid molecule structure grows. To achieve more comprehensive removal of acids out of solutions, one reduces flow rate and increases thickness of the sorbent layer.

References

Hygienic. Hygienic requirements for quality assurance atmospheric air in populated areas: SanPin 2.1. 6.1032 – 01. Moscow: IITS of the Ministry of Health of Russia 2001.

Maximum. Maximum permissible concentration (MPC) of chemical substances in soil: GN 2.1.7. 2041 - 06. Moscow: IITS of the Ministry of Health of Russia 2006.

Lazarev NV, Levina EN. Harmful substances in industry. Moscow: Chemistry 1976.

Vigdorovich VI, Shel N, Zarapina IV. Theoretical basis, technology and technology of neutralization, processing and recycling of waste. Moscow: CARTEK 2008.

Methodological RD 52.24.421-95. Methodological guidelines for the determination of COC in waters. Rostov n/D 1995.

Methodologica RD 52.24.420-95. Methodological guidelines for the determination of BOD in waters by bottle method. Rostov n/D 1995.

Vigdorovich VI, Tsygankova LE, Esina MN, Uryadnikov AA, Shel NV. Calculation of the dynamic sorbent capacity in the presence of two sorbates. J Water Process Eng 2017; 20: 180-6. https://doi.org/10.1016/j.jwpe.2017.11.002

Vigdorovich VI, Tsygankova LE, Akulov AI. Phenol extraction from aqueous solutions by glauconite. Sorbtsyonnye i chromatographicheskie processy (Rus) 2010; 10: 500-5.

Zhu L, Zhu R. Simultaneous sorption of organic compounds and phosphate to inorganic–organic bentonites from water. Sep Purif Technol 2007; 54: 71-6. https://doi.org/10.1016/j.seppur.2006.08.009

Anirudhan TS, Ramachandran M. Surfactant-modified bentonite as adsorbent for the removal of humic acid from waste waters. Appl Clay Sci 2007; 35: 276-81. https://doi.org/10.1016/j.clay.2006.09.009

Downloads

Published

2018-12-21

How to Cite

Tsygankova, L. . (2018). Sorption of the Simplest Carboxylic Acids on Clay-Like Mineral Glauconite: Reduction of Integral Toxicity of Aqueous Solutions. Journal of Applied Solution Chemistry and Modeling, 7, 55–61. Retrieved from http://lifescienceglobalca.com/index.php/JASCM/article/view/7759

Issue

Vol. 7 (2018)

Section

General Articles

License

Policy for Journals/Articles with Open Access

Authors who publish with this journal agree to the following terms:

  • Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

  • Authors are permitted and encouraged to post links to their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work

Policy for Journals / Manuscript with Paid Access

Authors who publish with this journal agree to the following terms:

  • Publisher retain copyright .

  • Authors are permitted and encouraged to post links to their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work .