The twenty-two section “PROCESS PARAMETERS OF AEROBIC SYNTHESIS
OF MICROORGANISMS”. This study analyzes the peculiarities of mass exchange
processes in gas-liquid media based on the ratios of matter flows, taking into account the
requirements for dissolved oxygen and simulating aeration regimes. Nitrogen as an
effective component of the air phase in aerated conditions of culture media and methods
of intensifying mass transfer processes are considered. The mathematical formalizations
point to the presence of interconnections in the dynamics of transformation and synthesis
of substances according to the matter balances. This means the ability to create a control
system for synthesis processes based on tracking changes in concentrations of sugar,
microorganisms, dissolved oxygen, ambient temperature, etc. It has been proven that the
effective factors of influencing mass exchange processes on the boundary between the
liquid and dispersed gas phase include variable pressures in the volume of the gas phase
above the liquid and the restriction of velocity in gas-liquid circuits.
The twenty-third section “COMPLEX LOW-WASTE TECHNOLOGIES FOR
WATER PURIFICATION FROM IRON COMPOUNDS”. Nowadays, the problems
of salinization of surface and groundwater are quite urgent. The paper is aimed to
present the rational use of materials, energy and resource-saving technologies for the
protection of the environment. Sorption technologies are effective in purification of
wastewater, but most sorbents are quite expensive and their regeneration connected
with the problem of utilization of regeneration solutions. Due to the cheapness and
availability, sorbents based on the plant materials are attractive to wastewater
treatment. To improve the efficiency of the process, the use of the simplified aeration
method to reduce the iron ions content in water was proved. The regularities of iron
ions oxidation in electrolysis and the optimal conditions of the process and the
development of recommendations for the practical application of the obtained results
were given. The application of "green", complex technologies allows to achieve
significant technical, economic and ecological effect for ensuring ecological safety.
The twenty-fours section “PHASE COMPOSITION, STRUCTURE AND
MECHANICAL
PROPERTIES
OF
INDUSTRIAL
BRONZE
BrA9Zh3L
ADDITIONALLY DOPED WITH ZINC”. Based on Cu-Al, Al-Fe, Cu-Fe, Cu-Al-Fe
phase diagrams analysis, structure and phase composition of bronze BrA9Zh3L have
been observed. It has been established that bronze structures with Zn ≤ 1% contents
consist of structure-free α-Cu solid solution crystals and eutectoid component, which
basis forms on γ
2
+ α eutectoid of Cu-Al system. In addition, in bronze structure
branched star-like small crystals of iron-containing phase have been discovered. These
star-like iron-containing crystals with 81,20 ... 82,79 wt. % Fe and 9,86 ... 10,39 wt. %
Al have been identified as β
1
-phase, i.e. Fe
3
Al.
The twenty-fifths section “DEVELOPMENT OF COMPOSITION OF
BALANCED EXTRUDED GRAIN PRODUCT WITH LINEAR PROGRAMMING
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