No 3 (2014)
ENGINEERING SOLUTIONS
G. I. Dvoskin,
V. F. Kornilyeva,
L. M. Dudkina,
V. V. Khaskhachikh,
S. P. Kolotukhin,
V. V. Ponurovskaya
4-7 529
Abstract
At present, in the North oil producing regions of our country formed large areas of peaty soils, contaminated by petroleum products. This material could consider as potential reserve of local fuel. Experimental investigations showed that from one ton of contaminated peat could be receive as marketable output: 160 kg of semi coke, 113 kg of gas, and 270 kg of light liquid petroleum products (heating oil). Semi coke could be processed into environmentally safe smokeless fuel in the form of briquettes of catalytic oxidation. On the basis of Krzhizhanovsky Power Engineering Institute’s development there is possibility of work on design mobile complex for recovery and processing of contaminated peat in situ. Tentative productivity of complex on raw feedstock is 6000 tons per year. We could receive in the form of marketable output 1000 tons of catalytic oxidation’s briquettes and 1400 tons of liquid petroleum products. Consequently, there is could be partially solve a problem of integration of cheap (and in this context lose) local fuel in fuel and energy balance of region. Furthermore, the operation of such complex intrinsically inserts in program of work on recultivation of areas contaminated by petroleum products. Implementation of represented in this article task will be require complex approach and participation of stakeholders of different type.
8-10 510
Abstract
There was considered application of pulsed corona discharge for purification of vented and processing emissions from volatile organic contaminants. There was presented short description of ionization method of purification, its advantages as compared with existing methods and formerly developed in Vologda State Technical University method for purification by means of corona discharge. There was presented a short description of laboratory setup design and operational parameters of gas emissions purification process. By means of experiments there was established dependence of oxidation efficiency from stabilization time of work area’s chamber and from its effective volume as well as from voltage value in discharge gap. There were presented results of experiments on detection of purification efficiency’s dependence from operational parameters of ionization setup and ionization process.
11-15 444
Abstract
There was presented thermodynamic and topological analysis of butanol and toluene mixture that formed as waste in paint-and-varnish industry. There was carrying out experimental investigation of liquid – liquid equilibrium state in system of ethanol – toluene – benzene chloride. There was developed method of chromatographic procedure of investigated mixture. There were synthesized the main routs of butanol and toluene mixture’s separation as flow graphs. There was offered options of process flow scheme for butanol and toluene mixture’s separation by means of combination of simple and azeotropic rectification. Benzene was offered as azeotropic agent.
16-20 602
Abstract
There was considered a possibility of contaminated waste of PET (bottles, vials, and packaging) treatment by means of pyrolysis method under self-energy supply regime. The main aim of this work was development of background technology and optimal regimes of contaminated waste of PET recovery, and deriving of useful secondary products in the conditions of full self-energy supply. There were used scientific foundations of PET waste treatment into useful kinds of secondary products. There were specified optimal regimes of treatment in the conditions of full self-energy supply. There was developed plant for contaminated PET waste treatment. There were defined methods of treatment management in accordance with targeted composition of secondary production, and regulation of quantity and kinds of fuel components of secondary production.
SCIENTIFIC DEVELOPMENTS
21-25 518
Abstract
The work objectives are securing of environmental safety under condition of raw material resources base’ expansion for production of binding materials by means of usage of man-induced products, validation of raw value of waste blast-furnace slags for production. There was considered recovery of waste blast-furnace slags in the manufacturing of lime-slag binding materials. As a result of waste blast-furnace slags’ recovery (which formerly did not used for binding materials manufacturing) there is decreasing adverse load on environment. There was completed database on mineralogical and oxide composition of waste blast-furnace slags with different origin and samples of lime-slag binding materials, manufactured on the basis of its. Usage of waste blast-furnace slags in the building complex is reasonable for raw material resources base’ expansion for binding materials manufacturing and deceasing of cost of production.
26-31 452
Abstract
There were considered the issues of briquettes granulating on the basis of different nature waste. Authors carrying out compression tests of different mixtures in the matrix with the channels of constant and variable section. There was defined density and strengths of optimal regimes of granulating process. Carried investigation demonstrated that wood, vegetable and food waste could be granulating in the composition of fuel pellets and complete feed.
32-35 440
Abstract
For the first time was used ecotol (nonconventional organic fertilizers, a new class of bioactive substances) for the purpose of impact on growth and physiological state of woody species’ transplants of different resistance to man-caused impact. There was specified that presence in ecotol biogenous amines, their precursors and products of oxidative deamination. There was analyzed influence of ecotol on lead mobility in soils of different contamination by given metal, as well as defined total content and labile forms of metals after growth Fraxinus pennylvanica (white ash) and Picea excels(fir spruce). Different species of trees responded not uniform on ecotol application in the conditions of soil contamination by heavy metals. As long as for urban garden and green planting of sanitary protection zone used mainly more resistance to man-caused impacts hard woods, than ecotol will be impact positive effect on physiological state.
36-39 520
Abstract
There were carrying out\ investigations on application in the function of non-plastic material for ceramic material’s production slag from burning of lignite coal Kansko-Achinsk pool on Krasnoyarsk CHP-2. There was specified that slag with increased content of ferric and calcium oxides and alkalis will be contribute to ceramic materials’ sintering under relatively low temperature of burning. There were presented compositions for ceramic material’s production on the basis of interslate clay and slag from lignite coal’s burning without usage natural conventional materials. Results of investigations showed that application of slag from coal burning and interslate clay for production of ceramic materials dramatically changes raw material resources base of Russia and decreases environmental tension in regions and allows receive high-strength bricks.
40-43 558
Abstract
There were examined technology process, connected with oil-contaminated wastewater treatment, particle size distribution of contaminant. There was information presented that wastewater are divided by particle size distribution of contaminant on four groups. There were investigated the main methods of oil-contaminated wastewater treatment. There were presented the main principles that used for selection of collection and treatment of wastewater. There was proved that oil-contaminated wastewater treatment should guarantee the main figures that are obligate for process water. There are considered types of wastewater treatment plants, the main methods of industrial wastewater treatment from petroleum products. There was presented description of flotation process. There was proved efficiency of oil-contaminated wastewater treatment as consequence of flocculants application.
44-47 429
Abstract
There was demonstrated that chemical additives, introduced in wood boards, non effectively inhibit formaldehyde emission from finished goods under its long-term operation. Work objective is reduction of formaldehyde emission in wood boards from large size oriented strand boards (OSB) by means of quality improvement of orientation in disk setup. For the first time represented relationship of orient disks’ angular velocity, under which angle of dispersion of wood particles decreased by 7,50, that allows reduce formaldehyde content by 30 % under permanent bending strength of boards in the direction of orientation. There was presented structure of systems, allowing automatically realize given relationship.
ANALYSIS. METHODS. PROGNOSIS
48-53 583
Abstract
There was offered integral assessment method of ecological situation in Russian cities. There was proposed a man-made impact study method in the cities taking into account not only integral index, but pollutions in existing system of settlement. It is important research task, because the main social and environmental consequences of territorial economic structure transformation could be estimate by means of quantity of people living in conditions of different pollution degrees. There was made a typology of 1100 Russian cities by the ratio of internal pollution potential and “induced” pollution from other cities, calculated as potential of man-made impact field. There were given priority measures on the improvement of ecological situation in different types of cities and regions.
54-57 402
Abstract
There were conducted trials of road mixes on the basis of bulk waste of production such as worked-out propping agent, regenerated zeolite, waste of terephthalic acid production (WTAP). On the basis of obtained data was developed simulation model for forecast of strength properties of road mixes at change of proportion of input components at following range: proportion of WTAP to bitumen from 0, 01 to 0, 04, zeolite to propping agent from 0, 6 to 1, 5, bituminous binder – mineral filler ratio from 0, 05 to 0, 1, as well as temperature, at which trials conducted from 0 to 50oC. Proposed model allows defining optimal proportion of input components, and thereby achieving high quality of road pavement.
FOREIGN EXPERIENCE
58-60 438
Abstract
There were considered projects on clearing from pollutions and dredging bottom and river beds of surface water bн company “Van Oord”. Projects concurrently with clearing are solved environmentally important task treatment with withdrawn contaminated subsoil for purpose of create minimal load on environment, organization of problem-oriented reservoirs; new technological solutions of company on separation of contaminated fractions from purified subsoil with indication of area of use for this part of subsoil in economic operations. There was showed role of dredging works in improvement of influence on environment by means of changing conditions of water exchange and run-off of surface waters. There were denominated fields of applications of hydrodynamic models and programmes for receiving and processing of telemetric’s initial values on accurate assessment of environmental plume in the performance of operations on clearing and dredging of surface waters. Given examples of special equipment’s use and technological solutions for certain completed projects on dredging and riverbank treatment and bottoms of surface waters.
ISSN 1816-0395 (Print)
ISSN 2413-6042 (Online)
ISSN 2413-6042 (Online)