Using of Biomass and Wastes of Beans (Phaseolus Vulgaris) and Peas (Pisum Sativum) Pro-Cessing as Sorption Material From Pollutants Removing From Water Environments (Lit-Erature Review)

Abstract

Was reported literature findings of domestic and foreign articles about using of biomass components (leaves, straw, pods, seeds) and wastes of beans (Phaseolus vulgaris) and peas (Pisum sativum) pods shells processing as sorption material for pollutants (metals ions, colorants) removing from water environments. Concise literature findings about Pisum sativum and Phaseolus vulgaris plant structure, cultivation value, and chemical composition of some biomass components are described. Was revealed that composition of beans and peas pods has big amount of proteins, that can provide removing of metals ions such as (Cd(II), Co(II), Cr(III) и Cr(VI), Cu(II), Fe(III), Mo(VI), Ni(II), Pb(II), Sb(III) и Sb(V), Zn(II)) from water environments. Was showed the possibility of sorption characteristics increase for pollutants by Phaseolus vulgaris and Pisum sativum biomass treatment with different chemical reagents. Was revealed that pollutants sorption isotherms of wastes and biomass of considered legumes are described mostly by Langmuir model than by Freundlich model. The kinetic of process mostly match to pseudo-second order model. It is shown that using of seeds and pods shells of legumes is prospectively for removing of heavy metals ions and suspended particles from water. Was proposed to use charcoal, which was gotten by peas pods carbonization for removing of heavy metals ions from water environments. Concluded, that using of legumes pods extracts is more effective for clearing water environments from heavy metals ions.

Pea grain shells as a raw material for sorptive treatment of polluted waters

“…Therefore, the process of their extraction from grain processing waste is much cheaper than chemical synthesis. It is possible to increase the degree of purification of water bodies and wastewater from harmful impurities using extracts from shells containing chemical compounds that react with pollutants [14].…”

“…These compounds are complex salts in which the metal atom is bound not only to oxygen atoms but also to nitrogen atoms of amino groups. This results in structures consisting of five-membered cycles, characterized by stability and insolubility in water [14]. The complexing ability of pea shell pectins is based on the interaction of their molecules with heavy metals and radioactive elements.…”

Heavy metal sorption by native shells of pea grain

“…The sorption activity of aqueous solutions obtained from native shells of pea grains was also due to the formation of complex compounds of amino acids contained in the proteins of the grain shells with heavy metal ions. These complexes have been found to be insoluble in water and highly stable [6].…”