Preparation of molded sorption materials based on peat-mineral compositions

Abstract

In this work, the use of peat and wastes and products of its processing as sorption materials for the removal of water and oil based contamination has been investigated. The negative effect of hysteresis phe nomena appearing during drying on the hydrophysical properties of peat has been noted. The use of optimal concentrations of mineral hydrophilic additives in a peat matrix allows the rate and capacity of sorption to be increased. A working hypothesis that explains the physicochemical mechanism of the increase in qualitative parameters of composition sorbents has been suggested. A flow diagram of the formation of peat based sorp tion materials that assumes possible transitions between the steps of flow process has been worked out.

Software for Automated Production Line of Peat Briquettes

“…Double screen (4) segregates factions of 10-20 mm out of a stream and then they are processed in hammer crusher (5), with the collected coarse rejects being sent to livestock farms. The developed peat is fed by a scraper conveyor (8) to a batch bin (9) of a continuous drying plant (11). The peat is dried up in hot air which is pumped by a forced fan (6) to the humidity value of no more than 25%, with the temperature in a heat generator (7) being 110-140°C.…”

“…The control issues are of special priority for mining technologies. This is primarily due to the following features of peat production: -the complexity and high speed of technological processes -explosion and fire hazards of processed substances [9][10] -high temperatures and high pressure of the flow process [11] -high sensitivity of a process number to technological mode violations [12].…”

Knowledge Assessment Software in Mining Specialist Training

“…The modernization of Federal State Educational Standards calls for some software [1-3] meant for studying technological and industrial material independently [4][5][6][7][8][9][10] with the test of the knowledge gained to follow up and the human-generated interference to be eliminated.…”

Perspectives for application of moulded sorption materials based on peat and mineral compositions

“…Many analogues [8] often have lower consumer properties (absorption capacity, porosity, biological stability, retention capacity, etc.). In addition, peat properties allow further modification of the sorbent with oil-oxidizing biological products, which will promote rapid destruction of oil products left in the water.…”

“…Such sorbents must absorb a large amount of oil products, remain on water surface for a long time, be easy for collection and recycling. Analysis of conducted studies [8] showed that the characteristics of peat sorbents are sufficient to compete with other sorption materials.…”