WORKS ECONOMY
The issues of wastewater treatment of factory of vegetable oils from fats and suspended solids are discussed. The technology of wastewater treatment is offered, and the efficiency of which is confirmed by experimental results. Mode reagent wastewater treatment is selected. A scheme of wastewater treatment, including pretreatment of aluminum-containing coagulant, sedimentation, flotation and filtration is presented.
Presents a possibility of reducing the technological cycle of biopolymer production from organic wastes of leather and fur industries by 2.2 times vs. known methods by optimizing raw material pre-preparation for dissolution. The accelerated method of biopolymer production makes possible its physical and chemical properties preservation, increase its clean content increase, as well as reduce wastewater pollution by sodium hydroxide and sulfide, water consumption, wastewater disposal, materials and electricity consumption for its production.
NUMBER SUBJECT. Best available technologies and environmental safety
The materials of the case study aimed at assessing results of the technological modernisation of JSC "Gaspromneft-MNPZ" oil refinery are presented. The paper analyses compliance of the environmental and technological modernisation programme of JSC "Gaspromneft-MNPZ" with the criteria of the "green" investments set in Russia. It is demonstrated that both Best Available Techniques (BATs) and emerging techniques are implemented while achieved emission and resource efficiency levels either comply with the established oil refinery sector BAT-associated technological parameters (requirements) or go "beyond BAT" parameters.
The impact of burning and nonburning MSW landfills on humans and the environment has been studied. It has been shown, that even nonburning landfills are prolonged threat, discarding such highly toxic compounds as hydrogen sulfide, mercaptans, disulfides, ammonia, amines, nitrogen oxides, phosphines, arsines, carbon monoxide, formaldehyde, etc. Burning landfills discard polyaromatic hydro-carbons (PAHs), as well as polychlorinated biphenyls (PCBs), dibenzodioxins (PCDDs) and dibenzofurans (PCDFs). The study of technologies of MSW thermal rendering harmless with obtaining energy has been carried out. It is shown that the controlled MSW burning within the conditions of modern enterprise allows not only minimization of formation of these supertoxicants, but as well to decrease their further discard into atmosphere practically to zero, thanks to correctly selected methods of the flue gases cleaning.
The methodology of selecting environmentally sustainable industrial areas suitable for the development of manufacturing industries, based on the Republic of Tatarstan example has been developed. Major research tools applied while working out the methodology include environmental monitoring approaches, cause-and-effect analysis, multicriteria object selection, as well as methods of the multivariate statistical analysis for verifying results obtained.
The approaches to the control of pollutant emissions of industrial enterprises by means of automatic measuring systems are presented. The available international experience of normative regulation of continuous emissions control, including the regulatory policy of the United States of America, the European Union, the People's Republic of China, the Republic of India, the Republic of Korea, is summarized. It was found that almost all countries that regulate air quality on the basis of the concept of the best available techniques have formed lists of pollutants, threshold values of their emissions, lists of industries or types of units, stationary emissions sources which are to be equipped with automatic measuring systems. The Russian system regulation of the negative impact on the environment in terms of the application of continuous emission monitoring systems is considered. Technical features of the organization of automatic control of emissions at different types of stationary sources are analyzed. The cases of the absence of practical possibility of making instrumental measurements of emissions are discussed.
SCIENTIFIC DEVELOPMENTS
The study of the filter material Diamix Aqua (Diamix Aqua) by LLC "Diamix" (Ulyanovsk) was carried out. The modes of preliminary washing of the filtering material Diamix Aqua have been worked out; the efficiency of the process of purification of model systems and natural waters from impurities that determine their color and turbidity has been determined. The Diamix Aqua performance characteristics were evaluated vs. quartz sand for the purification of surface natural low turbid colored waters with increased oxidizability on contact filters at water treatment plants using aluminum sulfate as a coagulant. According to industrial tests results, the filter material Diamix Aqua is recommended as a media of a contact filters to replace quartz sand for water treatment taken from surface water sources.
Autonomous remote monitoring system of pollutants in site controlled sections for measuring water bodies pollution was documented. It locates the self-contained module for remote monitoring of water bodies surface in automatic mode according to the predetermined path of point-integration sampling for water bodies pollution measuring and technological parameters processing followed by subsequent data transmission via GSM to the state register of negative environmental sources. Obtained data enable the modelling of substances concentration changes in surface waters.
Example of the Bashkir-Serpukhovskaya deposit oil field in the Perm region where experimental studies were carried out and proved produced water and oil compatibility. Studies of porosity and reservoir properties (PRP) of cores showed their decrease when using fresh water from surface water sources to maintain the reservoir pressure (RPM), and to preserve RP when using produced water. Results of hydrodynamic modeling over a period of 20 years show benefits of using produced water for RPM, including oil production increase by 8% and saving fresh water from surface water sources in the amount of 12 million m3.
ANALYSIS. METHODS. PROGNOSIS
The prospects of applying the Environmental Impact Assessment (EIA) procedure as part of nature protection in an industrial area city development are analyzed . The issues of increasing the economic efficiency and investment attractiveness of industrial areas development, with constant monitoring of the possible negative impact on the environment are considered. Different aspects of the city industrial zones development with the introduction of modern emission/discharge cleaning technologies and improve the environmental safety of industries as a whole were studied. The statistical data on the territory pollution of Samara region big cities (on the case of Togliatti), on the industrial enterprises making the greatest contribution to the pollution of the region environment are analyzed. The structure of the EIA project is investigated, using a specific example of the industrial zone of PJSC KuibyshevAzot.
The basic concepts of environmental safety are analyzed. The sources of terms, definitions and concepts of environmental safety are considered. The reasons for the inconsistencies between Russian and European definitions, the causes of "confusion" in terminology are studied. A comparison is made of such approaches to the study and impact on nature as the "Michurinsky" approach and the approach from the position of the "precautionary principle". A distinction is made in the content characteristics of the concepts of safety and danger. The close relationship between the biodiversity of intraorganismal microflora and the environmental safety of the organism is substantiated, this relationship ensures ecological sustainability.
ISSN 2413-6042 (Online)