Application of the Organic Waste-Based Sorbent for the Purification of Aqueous Solutions

Abstract

The effective purification of large-capacity wastewater from heavy non-ferrous metals and organic pollutants using inexpensive sorption technology remains a crucial task. Analyzing the current objectives of sustainable development, biochar obtained from chicken manure has prospects as a source for sorption purification of industrial wastewater. To determine the characteristics of organic material and the composition of the initial and equilibrium phases, the following analysis methods were used: volumetric, complexometric, pH-metric, X-ray fluorescence, chromatographic, spectrophotometric, luminescence-photometric and X-ray diffraction. The thermal nitrogen desorption method was used for determining the specific surface area and pore sizes with the Quantachrome Nova 1000e automatic analyzer. The sorption properties of the reprocessing product of the fresh poultry manure were investigated in relation to organic and inorganic compounds: phenols, benzene, ketones, cations of lead, mercury, manganese and iron. Based on the results obtained, technical conditions were developed for the use of the reprocessed organic waste-based product as a sorption material for household, industrial and technological wastewater purification from organic and inorganic components.

Detoxification of corn stover prehydrolysate by different biochars and its effect on lactic acid fermentation

“…The thermal nitrogen desorption method was used for determining the specific surface area and pore sizes with the automatic analyzer (Nova 1000e, Quantachrome Instruments, America). 23 …”

Development of composition and study of sorbent properties based on saponite

“…Figure 1 shows that adsorption equilibrium is reached for the concentration of 0.0281 mol/lat the 80th minute; for the concentration of 0.0155 mol/l at the 40th minute; for concentrations of 0.043 and 0.022 mol/lat the 130th minute. Thus, by the 130th minute of the experiment the equilibrium is reached by all solutions with the considered concentrations of copper (II) ions at the ratio of the sorbent and the model solution 1:50 [24]. The value of sorption capacity reaches 1.2 mol/kg…”

A New Approach for Synthesizing Fatty Acid Esters from Linoleic-Type Vegetable Oil

“…The synthesis of fatty acid ethyl esters was carried out at ethanol excess in a stirred tank reactor in Auto-MATE system H.E.L (Figure 6) with a reflux condenser and a magnetic stirrer [43][44][45]. The volumetric ratio of ethanol to oil was maintained at 1:1, 2:1, 3:1, 4:1 and 5:1.…”