Biomass derived silica containing products for removal of microorganisms from water

Abstract

The research is potentially attractive for converting silica rich biomass into useful materials. Silica containing specimens prepared by the thermal method and deposition from rice production waste (straw and husk) were evaluated for their ability to remove different strains of microorganisms from the water. The strains of microorganisms with different cell shape and size were chosen for investigation: Escherichia coli, Bacillus subtilis, Candida albicans, Pseudomonas aeruginosa, Staphylococcus aureus and freshwater heterotrophic bacterial association. The results obtained have been discussed as compared to the physical and chemical parameters of the sorbents: their composition, specific surface value, pore size, zeta potential value and surface hydrophobicity. Our study showed that removal efficiency of SiO 2 specimens and alumosilicate sample prepared from rice husk to different strains of microorganisms was higher that of other specimens including commercial sorbent. The use of various processing schemes for rice production waste let to obtain efficient selective sorbents.

Dependence of Porosity of Amorphous Silicon Dioxide Prepared from Rice Straw on Plant Variety

“…During the last few years, the sorption properties of the products of rice production waste processing have been actively investigated (Ahmaruzzaman and Gupta 2011). It is known that amorphous silica from RS efficiently sorbs bacteria (Zemnukhova et al 2014a). Among the samples prepared the same way, silica from RS has a higher sorbability to E. coli and B. subtilis than that prepared from rice hull (Zemnukhova et al 2014a).…”

“…It is known that amorphous silica from RS efficiently sorbs bacteria (Zemnukhova et al 2014a). Among the samples prepared the same way, silica from RS has a higher sorbability to E. coli and B. subtilis than that prepared from rice hull (Zemnukhova et al 2014a). …”

Study of the Adsorption of Bacillus subtilis and Bacillus cereus Bacteria on Enterosorbent Obtained from Apricot Kernels

“…The influence of temperature, pH, and salt concentration on the adsorption of Bacillus subtilis bacteria on the minerals kaolinite, montmorillonite, and goethite was studied in the paper [19].…”

Use of silicate by-products in water treatment processes and development of eco-friendly self-polishing antifouling coatings

“…Studies on the effect of these compounds on the adsorption of microorganisms, including pathogenic and opportunistic pathogens, are of particular interest. These properties make it possible to use silicates, for example, as sorbents for water purification or enterosorbents in pharmacology (Zemnukhova et al 2015;Kurdish and Chuiko 2003).…”