Physicochemically modified peat by thermal and oxidation processes as an active material for purification of wastewaters from certain hazardous pollutants
Autor: | Milan Z. Momčilović, Marjan S. Ranđelović, Ljiljana N. Anđelković, Jelena Purenovic, Milovan M. Purenović, Novica J. Stanković |
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Rok vydání: | 2017 |
Předmět: |
General Chemical Engineering
0211 other engineering and technologies surface groups chemistry.chemical_element 02 engineering and technology 010501 environmental sciences lcsh:Chemical technology 01 natural sciences Ingredient Adsorption Hazardous waste adsorption-sorption lcsh:TP1-1185 Arsenic 0105 earth and related environmental sciences Pollutant 021110 strategic defence & security studies Aqueous solution arsenic General Chemistry Contamination Sulfur 6. Clean water physicochemical modification chemistry 13. Climate action Environmental chemistry peat hydrogen sulphide |
Zdroj: | Hemijska industrija Hemijska Industrija, Vol 71, Iss 4, Pp 299-306 (2017) |
Popis: | The physicochemical modification of peat through thermal and oxidation processes was carried out, in order to obtain new, inexpensive and active material for purification of different types of waters. During the modification, surface chemical compounds of Shilov type were formed. Batch adsorption properties and suitability of physicochemically modified peat (PCMP) for odor removal were tested in aqueous solutions of H2S and colloidal sulphur. Additionally, PCMP was tested in the removal of As(V) which is hazardous ingredient in contaminated waters. Possible mechanisms of pollutants binding include interactions, which lead to formation of adducts and clathrates. All these processes are elucidated in detail. The results showed that the obtained material can be used for the removal of sulphide, colloidal sulphur and As(V) from different types of waters. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. III 45012] |
Databáze: | OpenAIRE |
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