The Removal of Hydrogen Sulfide in the Biodesulfurization System Using Granulated Phosphogypsum

Authors

  • L. D. Plyatsuk Sumy State University, 2, Rymskogo-Korsakova st., 40007 Sumy, Ukraine
  • Ye. Yu. Chernysh Sumy State University, 2, Rymskogo-Korsakova st., 40007 Sumy, Ukraine

DOI:

https://doi.org/10.18321/ectj395

Keywords:

phosphogypsum, gas purification, biogas, sulfide removal, elemental sulfur

Abstract

This paper focuses on the study the possibility of phosphogypsum utilization in the biotechnological processes for hydrogen sulfide removal from biogas. The optimal parameters of the process of granulation dihydrate phosphogypsum were determined. The biochemical characteristics of granular carrier based on phosphogypsum was studied. The efficiency of the gas cleaning under immobilization of the thiobacillus on the surface support medium was analyzed. The main parameters of the gas cleaning process were determined. The degree of H2S removal from a gas stream was 98.22% at pH = 5.0 and optimum empty bed residence time of 10 h. The possibility of the phosphogypsum using as a new type of mineral support medium for the associations of sulfur-oxidizing microorganisms developing was determined in the process of biological gases purification from sulfur compounds. It was the first time both theoretically and experimentally proved that the mineral support on the basis of phosphogypsum has a sufficient micro and macro elements that necessary for the thiobacteria development. Thus it is eliminating the need to supply additional sources of feeding organisms to biofilter. The gas purification biotechnology with support medium using on the basis of phosphogypsum was developed. This technological solution which allows providing the high quality of gas stream purification with a high content of sulfur compounds, particularly hydrogen sulfide (more than 10% of the gas total volume).

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Published

2016-01-20

How to Cite

Plyatsuk, L. D., & Chernysh, Y. Y. (2016). The Removal of Hydrogen Sulfide in the Biodesulfurization System Using Granulated Phosphogypsum. Eurasian Chemico-Technological Journal, 18(1), 47–54. https://doi.org/10.18321/ectj395

Issue

Vol. 18 No. 1 (2016)

Section

Articles

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