XXI Century. Technosphere Safety最新文献_第4页

Promising technologies for bioremediation of wastewater from gold mining enterprises in Uzbekistan 乌兹别克斯坦金矿企业废水生物处理技术前景看好

XXI Century. Technosphere Safety Pub Date : 2023-01-01 DOI: 10.21285/2500-1582-2022-4-322-333

S. Timofeeva, I. Drozdova, A. Boboev, S. O. Khuzhzhiev, M. A. Farmanova

{"title":"Promising technologies for bioremediation of wastewater from gold mining enterprises in Uzbekistan","authors":"S. Timofeeva, I. Drozdova, A. Boboev, S. O. Khuzhzhiev, M. A. Farmanova","doi":"10.21285/2500-1582-2022-4-322-333","DOIUrl":"https://doi.org/10.21285/2500-1582-2022-4-322-333","url":null,"abstract":"The ever-increasing volumes of gold mining in the Republic of Uzbekistan requires an increase in the cost of water resources. However, the subdivisions of the Navoi MMC are located in the arid, lowwater areas with high (40–80 %) and extreme (more than 80 %) water shortages. Therefore, the problem of water supply, water disposal and improvement of the closed water circulation system with the use of innovative biotechnological solutions is acute for the enterprise. The purpose of this work is to summarize current data on the use of wastewater bioremediation technologies at mining enterprises and to assess the prospects for using this technology by Navoi Mining and Metallurgical Company. The article summarizes the data on the use of bioremediation at mining enterprises in Russia and other countries and data obtained from our own experimental studies of the cleansing functions of plants in Uzbekistan. These studies were carried out under the laboratory modeling conditions using wastewater from tailing ponds GMZ-2 and GMZ-3 NMMC. The cleansing functions of the plants of the Zarafshan river valley were studied: eichornia, pistia, azoles and duckweed. It was found that eichornia has the highest cleansing potential: due to the high activity of the cyanidutilizing enzyme beta-cyanoalanine synthase, it accumulates metals and metabolizes cyanides. Pistia and azola have proven to be tolerant to high salinity levels and need to be adapted by adding organic matter, including sheep manure. The next stage is semi-industrial testing in a tailing dump and development of technical regulations.","PeriodicalId":322608,"journal":{"name":"XXI Century. Technosphere Safety","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133727980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamics of the number of planktonic rotifers in the pelagic zone of Southern Baikal (2005−2014) 2005 ~ 2014年南贝加尔湖远洋区浮游轮虫数量动态

XXI Century. Technosphere Safety Pub Date : 2022-12-30 DOI: 10.21285/2500-1582-2022-4-314-321

О. О. Rusanovskaya, E. Pislegina, S. Shimaraeva, Е. Silow

{"title":"Dynamics of the number of planktonic rotifers in the pelagic zone of Southern Baikal (2005−2014)","authors":"О. О. Rusanovskaya, E. Pislegina, S. Shimaraeva, Е. Silow","doi":"10.21285/2500-1582-2022-4-314-321","DOIUrl":"https://doi.org/10.21285/2500-1582-2022-4-314-321","url":null,"abstract":"Lake Baikal is a natural reservoir of fresh water of unique and age. Its net zooplankton is represented by rotifers, copepods, and cladocerans. An integral part of the pelagic zone is the rotatoriofauna, which surpasses the most numerous group of planktonic animals Copepoda crustaceans in terms of abundance and biomass. Pelagic Rotifera can be used as an indicator of water quality: by consuming phytoplankton, accumulating energy and transferring it to the next trophic levels, rotifers influence other hydrobionts. The purpose of the study is to analyze the development of year-round, winter-spring and summer-autumn groups of rotifers in the pelagial of South Baikal from 2005 to 2014. The dynamics of number and species composition of planktonic rotifers was analyzed. The study revealed that in the 0–50 m layer, year-round species of rotifers dominate, the number of winter-spring rotifers was minimum. The highest numbers of rotifers were recorded in 2005, 2007, 2008 and 2014. Their shares in the total number of zooplankton were 16,50 %, 16,00 %, 28,30 % and 48,55 %, respectively. The minimum number of rotifers was observed in 2010–2013, when their shares were 2,12 %, 4,04 %, 2,62 % and 0,04 %. They were represented by 9–17 species. The diversity was more pronounced in the group of summer–autumn rotifers. In 2014, rotifers had an unusually high abundance and were diverse. They accounted for a large share in zooplankton. Over a ten-year period, the number of rotifers varied from 157,66 thousand ind. m-2 (2012) to 13 057,59 thousand copies m-2 (2014).","PeriodicalId":322608,"journal":{"name":"XXI Century. Technosphere Safety","volume":"07 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129781822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Overview and comparative analysis of digital carbon footprint assessment tools 数字碳足迹评估工具概述与比较分析

XXI Century. Technosphere Safety Pub Date : 2022-12-30 DOI: 10.21285/2500-1582-2022-4-305-313

O. E. Kondrat’eva, O. Loktionov, N. S. Kuznetsov

引用次数: 0

Changes in the environmental situation in Listvyanka in 2017–2022 2017-2022年利斯特维扬卡环境状况的变化

XXI Century. Technosphere Safety Pub Date : 2022-12-30 DOI: 10.21285/2500-1582-2022-4-299-304

N. Dorofeeva, D. E. Zhelonkina

{"title":"Changes in the environmental situation in Listvyanka in 2017–2022","authors":"N. Dorofeeva, D. E. Zhelonkina","doi":"10.21285/2500-1582-2022-4-299-304","DOIUrl":"https://doi.org/10.21285/2500-1582-2022-4-299-304","url":null,"abstract":"The article deals with the problem of deterioration in the quality of the waters of Lake Baikal and changes in their composition. Baikal is the only large lake in Russia. It ranks sixth in the world in terms of the volume of drinking water reserves whose shortage is observed in a number of countries. Due to the development of tourism in Siberia, the lake ecosystem has already suffered great damage. To identify the reasons for the change in water quality, samples were taken in Listvyanka; quality indicators were analyzed and compared with those obtained in 2017 and 2020. The study revealed that the change in the water composition was caused by improper disposal of household waste and modern detergents containing organic substances and derivatives of petroleum products. Decaying waste increases the water temperature in the bays, which causes the appearance of spirogyra blocking the transport of oxygen to the lake inhabitants. The further spread of spirogyra can cause an ecological disaster. The article describes treatment facilities in Listvyanka and shortcomings of the project. Unfortunately, to restore the ecosystem, it is not enough to limit tourism; measures aimed to improve the productivity of these treatment facilities with a minimum of financial costs are required.","PeriodicalId":322608,"journal":{"name":"XXI Century. Technosphere Safety","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114692044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spontaneous coal combustion risks and risk indication methods 煤炭自燃危险性及危险性指示方法

XXI Century. Technosphere Safety Pub Date : 2022-10-05 DOI: 10.21285/2500-1582-2022-3-264-274

S. Timofeeva, G. Smirnov

引用次数: 1

Safety of civil air transportation in figures and diagrams 民用航空运输安全用数字和图表表示

XXI Century. Technosphere Safety Pub Date : 2022-10-05 DOI: 10.21285/2500-1582-2022-3-275-288

E. Khamidullina, T. A. Zvereva, D. O. Asharapova

引用次数: 0

Capabilities of the automated information support module for the oil and gas industry operator 油气行业运营商自动化信息支持模块的功能

XXI Century. Technosphere Safety Pub Date : 2022-10-04 DOI: 10.21285/2500-1582-2022-3-231-241

Z. A. Gromov, L. Belykh

{"title":"Capabilities of the automated information support module for the oil and gas industry operator","authors":"Z. A. Gromov, L. Belykh","doi":"10.21285/2500-1582-2022-3-231-241","DOIUrl":"https://doi.org/10.21285/2500-1582-2022-3-231-241","url":null,"abstract":"In the Russian Federation, the number of accidents and fatal injuries to oil and gas industry workers is growing, which requires the development of labor protection measures. Among the effective measures are information software technologies including the automated information support module for the gas and oil production and processing operator. The present study aims to analyze this module. The research objects are types of work performed by a commodity operator: maintenance of tanks, shut–off valves, pressure gauges, oil release. The subject is technological operations and production factors of technogenic risks which were taken into consideration when developing the automated information support module. A brief description of the module, its navigation on the main pages and their functions is provided. The algorithm for the safe work of the commodity operator and a list of block diagrams were analyzed. The main features of this module were described. Taking into account the production factors and workplace activities, the contribution of the module to the values of occupational risk was estimated. The conclusion about the use of a module that reduces risks and improves safety at oil and gas industry enterprises was made.","PeriodicalId":322608,"journal":{"name":"XXI Century. Technosphere Safety","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115860615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of the fire risk in using furnaces at housing and communal facilities of the Baikal region 贝加尔湖地区住宅和公共设施使用炉子的火灾风险评估

XXI Century. Technosphere Safety Pub Date : 2022-10-04 DOI: 10.21285/2500-1582-2022-3-242-248

A. Koryakin

引用次数: 0

Investigation of the fire danger of the main oil pumping station GNPS-1 “Taishet” by LLC “Transneft-Vostok” Transneft-Vostok有限责任公司GNPS-1“Taishet”主油泵站火灾危险调查

XXI Century. Technosphere Safety Pub Date : 2022-10-04 DOI: 10.21285/2500-1582-2022-3-249-263

D. Rozhkov, A. L. Belyak

{"title":"Investigation of the fire danger of the main oil pumping station GNPS-1 “Taishet” by LLC “Transneft-Vostok”","authors":"D. Rozhkov, A. L. Belyak","doi":"10.21285/2500-1582-2022-3-249-263","DOIUrl":"https://doi.org/10.21285/2500-1582-2022-3-249-263","url":null,"abstract":"Statistical data and equipment parameters are used to analyze accidents caused by the termination of the receipt of electricity and heat, technical failures, control failures and human errors. The main reasons for the damage of technological equipment are determined on the example of the head oil pumping station GNPS-1 “Taishet” in connection with fire propagation scenarios; the ways of solving the problems are described. Exceeding the design loads while maintaining the design strength of the equipment causes excessive mechanical effects. An example of the mechanical action is an increase in operating pressure in technological equipment. Violation of the integrity of the structural material of pipelines and technological devices occurs as a result of electrochemical corrosion. In the presence of moisture on the surface of structures, a film containing dissolved air and atmospheric impurities develops. The use of corrosion-resistant materials and the insulation of the inner and outer surfaces of pipelines with anticorrosive coatings increase their reliability. The most dangerous scenarios of accidents, fires, and explosions are accidents at three sites: in the tank farm, at the main oil pumping and back-up pumping stations. The scenarios for the development of an accident of the technological equipment and pipeline sections will allow us to determine the distribution of fire risks on the territory of the facility and beyond its borders, including assessing the magnitude of fire risks in order to develop measures to reduce it.","PeriodicalId":322608,"journal":{"name":"XXI Century. Technosphere Safety","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122046958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The test system for assessing the quality and effectiveness of the elements of the unified system used for responding to radiation emergencies 用于评估用于应对辐射紧急情况的统一系统各要素的质量和有效性的测试系统

XXI Century. Technosphere Safety Pub Date : 2022-10-04 DOI: 10.21285/2500-1582-2022-3-212-230

S. Gavrilov, O. Apanasyuk, E. Popov, A. Skorobogatov, E. V. Antonii, S. Shikin, A. E. Pimenov, S. Y. Maslov

{"title":"The test system for assessing the quality and effectiveness of the elements of the unified system used for responding to radiation emergencies","authors":"S. Gavrilov, O. Apanasyuk, E. Popov, A. Skorobogatov, E. V. Antonii, S. Shikin, A. E. Pimenov, S. Y. Maslov","doi":"10.21285/2500-1582-2022-3-212-230","DOIUrl":"https://doi.org/10.21285/2500-1582-2022-3-212-230","url":null,"abstract":"The test system for assessing the quality and effectiveness of the elements of the unified system used for responding to radiation emergencies (Test System) is part of the software package of the unified system for monitoring the safe life regime of the population of border areas, including exclusion and resettlement zones. It is designed to assess the quality and effectiveness of the elements of the unified system used for responding to radiation emergencies in the border areas of Bryansk region (Russia) and Gomel and Mogilev regions (Republic of Belarus) by testing the performance of its radiation monitoring subsystem and decision support subsystem. The quality of the system elements is assessed by the possibility of obtaining reliable data on changes in the radiation situation and the degree of operability of stationary radiation monitoring posts of the integrated system for monitoring the state of protection of the population, and its effectiveness – compliance with established standards for the transmission and processing of data for decision-making and transmitting emergency information to the competent authorities. The methods of mathematical modeling based on the emergency parameters and forest fire consequences modeling were used. In testing the quality and efficiency of the unified system, a report on the inspection of the radiation monitoring subsystem and the decision support subsystem is generated. It contains the following parameters: actual response time, standard response time; quality and efficiency indicators; assessments based on the testing results. The results were used in testing the subsystem for monitoring the radiation situation and the decision support subsystem used by the Main Directorate of the EMERCOM of Russia for Bryansk region.","PeriodicalId":322608,"journal":{"name":"XXI Century. Technosphere Safety","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123511129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0