scholarly journals Sanitary-and-epidemiological substantiation of the conditions forthelocation of modern low-capacity enterprises for manufacture of asphalt concrete taking into account changes in technology

2020 ◽  
pp. 46-52
Author(s):  
Z.V. Styrta ◽  
◽  
V.M. Mahniuk ◽  
◽  
Keyword(s):  
Asphalt Concrete ◽  
High Efficiency ◽  
Ambient Air ◽  
Town Planning ◽  
The European Union ◽  
Industrial Emissions ◽  
Nature Protection ◽  
Protection Measures ◽  
Protection Zone ◽  
Gas Cleaning

Objective: We performed sanitary-and-epidemiological and ecological-and- hygienic substantiation of the conditions for the location of low-capacity enterprises for the manufacture of asphalt concrete, developed the hygienic criteria for their location taking into account the newest home sanitary, ecological and town-planning legislations and requirements of the European Union directives. Materials and methods: In the article we used results of sanitary-and-epidemiological examination of the project materials and applied bibliosemantic, analytical methods. Results: Тhe sanitary legislation of Ukraine of 1971 and 1996 in the normalization of sanitary-and-protection zone for the above mentioned enterprises was analyzed and compared with the analogous standards in the European countries. According to the results of the scientific sanitary-and-epidemiological examination of the project materials on the substantiation of the sanitary-and-protection zone for home low-capacity enterprises for the manufacture of asphalt concrete (80% of them were put into operation before 1996), the following was established. All investigated enterprises work with the prepared bitumen with the implementation of nature protection measures by means of the use of high-efficiency dust and gas cleaning systems, that shortened the gross emissions of the pollutants in ambient air to a large extent and decreased influence on the environment and adjoining settlement territory, that complies with the requirements of the Directive of 2010/75/EС of European Parliament and Council on the industrial emissions (integrated prevention and control of contamination), November 24, 2010. Implementation of nature protection measures with the use of the high-efficiency dust and gas cleaning systems at the existent low-capacity enterprises for the manufacture of asphalt concrete provided the absence of the exceed of MPC of the specific pollutants at the distances that were 1.5-3.0 times less than standard sanitary-protective zone that was a cause for the substantiation of the use of new approach at the establishment of sanitary-and-protection zone by the calculation method at building of the new or reconstruction of the existent low-capacity enterprises for the manufacture of asphalt concrete.

scholarly journals Resource-saving technologies for cleaning gas emissions in the production of building materials

2018 ◽  
Vol 196 ◽  
pp. 04070 ◽  
Author(s):  
Tatiana Skorik ◽  
Natalia Galkina ◽  
Elena Glazunovà
Keyword(s):  
Building Materials ◽  
High Efficiency ◽  
Construction Materials ◽  
Chemical Properties ◽  
Maximum Level ◽  
Ambient Air ◽  
Dust Collector ◽  
Resource Saving ◽  
Dust Collection ◽  
Gas Cleaning

High requirements to ensure sanitary and hygienic working conditions and reduce harmful emissions into the environment are provided through ventilation systems equipped with efficient and economical equipment. The task of improving the air basin is to reduce the amount of harmful substances in the ambient air to the level of MPC and lower, which, with increasing volumes of ventilation and process emissions, determines the increased requirements for industrial filters. The most effective are wet devices, in which the process of gas cleaning is carried out through interaction with the liquid, most often with water. The authors developed a number of high-efficiency dust-collecting apparatuses, in which the majority of methods for contacting elements with a liquid are realized simultaneously, which determines the maximum completeness of gas purification from dusts with different physico-chemical properties. One of them is an aerohydrocyclone intended for combined simultaneous cleaning of a technological product in the form of a suspension and dusty air removed from the shelters of technological equipment. This apparatus with internal circulation of liquid, where the concentration of trapped dust in the irrigating liquid affects the efficiency of dust collection, the frequency of water replacement, the operating mode and the load of the water-slurry farm. The particulate materials of the slurry intensifies the process of dispersion, irrigating liquid and its structural viscosity, as well as the stability of the formed foam, which contributes to a more effective manifestation of various wet dust collection mechanisms.The implementation of the installation of a wet dust collector for complex cleaning in the technological line for the preparation of lime milk from the construction materials factory made it possible to reduce the concentration of dust in emissions at the maximum level of ensuring the economy of aspiration systems. The obtained results testify to the positive experience of the operation of wet dust collectors for complex cleaning in the building materials industry, and the regularities connecting the operation modes of the apparatus with the properties of trapped dusts and the features of technological processes make it possible to recommend them for use in various enterprises.

Economic models of Environment monitoring under imperfect information and high Costs

2014 ◽  
pp. 99-122
Author(s):  
M. Levin ◽  
K. Matrosova
Keyword(s):  
Environmental Monitoring ◽  
Environmental Regulation ◽  
Environmental Economics ◽  
Imperfect Information ◽  
Central Element ◽  
Economic Models ◽  
Environment Monitoring ◽  
Nature Protection ◽  
Protection Measures ◽  
Effective System

The paper considers monitoring of environmental change as the central element of environmental regulation. Monitoring, as each kind of principalagent relations, easily gives rise to corruptive behavior. In the paper we analyze economic models of environmental monitoring with high costs, incomplete information and corruption. These models should be the elements of environmental economics and are needed to create an effective system of nature protection measures.

ON THE NEED FOR THE DEVELOPMENT OF HYGIENIC STANDARDS (MACs) IN THE WATER AND AIR OF THE WORKING AREA FOR PERFLUOROOCTANOIC ACID IN THE RUSSIAN FEDERATION

2020 ◽  
pp. 21-31
Author(s):  
Kh. Kh. Khamidulina ◽  
E. V. Tarasova ◽  
A. S. Proskurina ◽  
A. R. Egiazaryan ◽  
I. V. Zamkova ◽  
...  
Keyword(s):  
Waste Water ◽  
Russian Federation ◽  
Perfluorooctanoic Acid ◽  
Stockholm Convention ◽  
The European Union ◽  
Industrial Emissions ◽  
Hazard Class ◽  
Human Environment ◽  
Class 1 ◽  
The Russian Federation

Currently, perfluorooctanoic acid (PFOA) has no hygienic standards in the air of the working area and objects of the human environment in the Russian Federation. By the decision of the Stockholm Convention SC-9/12, PFOA, its salts and derivatives are included in Part I of Annex A of the Stockholm Convention on Persistent Organic Pollutants in 2019 (with exceptions for possible use). The Rotterdam Convention on the Prior Informed Consent Procedure for Certain Hazardous Chemicals and Pesticides in International Trade included PFOA, its salts and derivatives in the list of potential candidates for inclusion in Annex III of the Rotterdam Convention at the next meeting COP10 in 2021. The use of this chemical on the territory of the Russian Federation entails water and air pollution. Industrial emissions and waste water from fluoropolymer production, thermal use of materials and products containing polytetrafluoroethylene, biological and atmospheric degradation of fluorotelomer alcohols, waste water from treatment facilities are the sources of the release of PFOA into the environment. Analysis of international databases has showed that PFOA is standardized in the air of the working area in Germany, Japan, and Switzerland. In the countries of the European Union, as well as the USA and Canada, the issue of PFOA standardizing in drinking water is being now actively under discuss. Taking into account the high toxicity and hazard of the substance and the serious concern of the civil society of the Russian Federation, the Federal Service for Supervision of Consumer Rights Protection and Human Wellbeing requested the Russian Register of Potentially Hazardous Chemical and Biological Substances to develop MACs for perfluorooctanoic acid in the air of the working area and water as soon as possible. The MACs for PFOA have been proposed using risk analysis: 0,005 mg/m3, aerosol, hazard class 1 – in the air of the working area and 0,0002 mg/L, the limiting hazard indicator – sanitary-toxicological, hazard class 1 – in the water.

Do regulations protect workers from occupational exposures to carcinogenic, mutagenic and reprotoxic (CMR) agents in France?

2017 ◽  
Vol 75 (5) ◽  
pp. 389-397
Author(s):  
Nathalie Havet ◽  
Alexis Penot ◽  
Morgane Plantier ◽  
Barbara Charbotel ◽  
Magali Morelle ◽  
...  
Keyword(s):  
Occupational Exposure ◽  
Occupational Exposures ◽  
International Agency ◽  
The European Union ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Protection Measures ◽  
Limit Value ◽  
Logistic Regressions ◽  
The Impact

ObjectiveThis article explores the impact of regulations on the implementation of collective protections in France to occupational exposure to carcinogenic, mutagenic and reprotoxic (CMR) agents.MethodsIndividual data from the French national cross-sectional survey of occupational hazards conducted in 2010 were analysed. We investigated whether stricter regulations and longer exposures were associated with higher level of collective protection using multivariate logistic regressions.ResultsGeneral ventilation, for which effect is limited as collective protection for CMR products, was present in 19% of situations involving CMR agents while isolation chambers, the most effective form of protection, were only very rarely implemented. Multilevel logistic regressions show that exposure situations to products classified as category 1 or 2 by the European Union do not have a higher probability of benefiting from a collective protection measures. Exposures to products with a Binding Occupational Exposure Limit Value selectively benefited from a better level of protection. Exposures to agents entered on the International Agency for Research on Cancer (IARC) list of proven or probable carcinogens benefited more from effective collective protections than products suspected to be carcinogens but not yet classified by IARC.ConclusionsThese results suggest that the dissemination of evaluations of carcinogens by the IARC translate into improved protective measures even though the IARC classification has no mandatory impact on regulations.

Байгаль, экологийн сэдэвт монголын аман болон орчин үеийн яруу найргийн бүтээлүүд (= Произведения устной и современной поэзии о природе и экологии)

2020 ◽  
Vol 15 (3) ◽  
pp. 189-206
Author(s):  
Alimaa A. ◽  
◽  
Tseveendorj D. ◽  
Keyword(s):  
Historical Memory ◽  
Social Changes ◽  
Nature Protection ◽  
Protection Measures ◽  
Cry For Help ◽  
The Social ◽  
The World ◽  
Man And Nature ◽  
Freshwater Reservoir ◽  
And Control

The social priorities of literature are the tribune of environmental idiology. Today, in the Mongolian literature, the direction of ecocriticism has been established. This article makes an analysis in traditional Mongolian poetry and modern poetry on the topic of nature conservation and ecology. In Mongolian folklore praise the purity of nature and the motherland. His idol of pure nature is praise and praise. But each species has its own color. The topic of nature protection in Mongolian folklore (Orthodoxy, Magtaal-praise, Tuul-epic, du-folk songs and myth) is that a person should not control and control nature but understand and convert to nature as a living creature; means that people will have a natural relationship, a balanced and safe life. Probably, there is not a single poet of Mongolia who does not address the topic of “man and nature”. Each in its own way perceives nature, and each in its own way revealing to the reader the world of nature and himself in this world. The space of the “Mongolian spirit” created by the poet is filled with natural landscapes, people, and historical memory. His ancestors and descendants, the dead and living, are called upon to preserve this space and believing that nature and civilization can exist in equal harmony, he would like to reconcile them among themselves. Therefore, the poems of Mongolian poets writing about nature sound like a distress signal, like a cry for help to nature. This is a feature. That is why Mongolian writers have initiated environmental protection measures. They stopped the construction of a chemical plant on Lake Hubsgul. The lake is the main freshwater reservoir in the world. Mongolian writers also warned that the pine forest “Tuzin Nars” was destroyed in nature every year billions of tons of waste. With such an attitude of man to nature on Earth there will soon be nothing left. There are examples of the writer C. Galsan, who planted 360 thousand trees. In this article we propose that we do not limit the observation and conclusions about the mastery of writers to the nature of the writings, but take into account personal, mental and social changes in the environment.

PrekotAC as Filter Aids for Efficient Dust Separation in a Fabric Filter

2014 ◽  
Vol 67 (4) ◽  
Author(s):  
S. Hajar ◽  
M. Rashid ◽  
A. Nurnadia ◽  
H. Norelyza ◽  
M. Ammar
Keyword(s):  
High Efficiency ◽  
Size Fraction ◽  
Inert Material ◽  
Air Pollution Control ◽  
Gaseous Emissions ◽  
Gas Cleaning ◽  
Fabric Filter ◽  
Wear And Tear ◽  
Gaseous Stream ◽  
Filter Aids

Fabric filters are extensively used as an air pollution control system for its high efficiency to collect particles from gaseous stream. The system is commonly installed in many incineration plants as the means to control dust and gaseous emissions. Unfortunately, their applications in these facilities are short lived due to wear and tear of the fabric media. This is because the fabric filter is not adequately conditioned before it is put up into service. A simple technique is to apply so called ‘pre-coat’ material to coat a layer of inert material onto the surface of the fabric as a ‘barrier’ for protection as well as to allow a uniform air flow passing through the filter media. In this regard, a newly formulated filter aids material known as PrekotAC, not merely acts as an adsorbent for flue gas cleaning but also an efficient dust separation agent in a fabric filter system. A mixture of PreKotTM:Activated Carbon of 40:60 (%weight) was found to be the most preferable combination with its particle size distribution between 75 and 600μm, which is bigger size fraction than the original materials.

scholarly journals Measurement of Ozone Production Sensor

2010 ◽  
Vol 3 (3) ◽  
pp. 545-555 ◽  
Author(s):  
M. Cazorla ◽  
W. H. Brune
Keyword(s):  
Production Rate ◽  
High Efficiency ◽  
Ambient Air ◽  
Ozone Production ◽  
State University ◽  
Photostationary State ◽  
Sample Chamber ◽  
Efficiency Conversion ◽  
The Difference ◽  
Teflon Film

Abstract. A new ambient air monitor, the Measurement of Ozone Production Sensor (MOPS), measures directly the rate of ozone production in the atmosphere. The sensor consists of two 11.3 L environmental chambers made of UV-transmitting Teflon film, a unit to convert NO2 to O3, and a modified ozone monitor. In the sample chamber, flowing ambient air is exposed to the sunlight so that ozone is produced just as it is in the atmosphere. In the second chamber, called the reference chamber, a UV-blocking film over the Teflon film prevents ozone formation but allows other processes to occur as they do in the sample chamber. The air flows that exit the two chambers are sampled by an ozone monitor operating in differential mode so that the difference between the two ozone signals, divided by the exposure time in the chambers, gives the ozone production rate. High-efficiency conversion of NO2 to O3 prior to detection in the ozone monitor accounts for differences in the NOx photostationary state that can occur in the two chambers. The MOPS measures the ozone production rate, but with the addition of NO to the sampled air flow, the MOPS can be used to study the sensitivity of ozone production to NO. Preliminary studies with the MOPS on the campus of the Pennsylvania State University show the potential of this new technique.

scholarly journals Efficiency and Persistence of Movento® Treatment against Myzus persicae and the Transmission of Aphid-Borne Viruses

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2747
Author(s):  
Thomas Armand ◽  
Luâna Korn ◽  
Elodie Pichon ◽  
Marlène Souquet ◽  
Mélissandre Barbet ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Myzus Persicae ◽  
High Efficiency ◽  
Plant Protection ◽  
Management Strategies ◽  
Plant Protection Products ◽  
Viral Transmission ◽  
The European Union ◽  
Low Efficiency ◽  
The Impact

Neonicotinoids are widely used to protect fields against aphid-borne viral diseases. The recent ban of these chemical compounds in the European Union has strongly impacted rapeseed and sugar beet growing practices. The poor sustainability of other insecticide families and the low efficiency of prophylactic methods to control aphid populations and pathogen introduction strengthen the need to characterize the efficiency of new plant protection products targeting aphids. In this study, the impact of Movento® (Bayer S.A.S., Leverkusen, Germany), a tetrameric acid derivative of spirotetramat, on Myzus persicae and on viral transmission was analyzed under different growing temperatures. The results show (i) the high efficiency of Movento® to protect rapeseed and sugar beet plants against the establishment of aphid colonies, (ii) the impact of temperature on the persistence of the Movento® aphicid properties and (iii) a decrease of approximately 10% of the viral transmission on treated plants. These observations suggest a beneficial effect of Movento® on the sanitary quality of treated crops by directly reducing primary infections and indirectly altering, through aphid mortality, secondary infections on which the spread of disease within field depends. These data constitute important elements for the future development of management strategies to protect crops against aphid-transmitted viruses.

scholarly journals Unidades de Conservação no Pantanal do município de Aquidauana-MS: uma análise da evolução do uso da terra e cobertura vegetal e suas implicações / Conservation Units in Pantanal in the municipality (...)

2014 ◽  
Vol 24 (42) ◽  
pp. 139-154
Author(s):  
Lucy Ribeiro Ayach ◽  
Vitor Matheus Bacani ◽  
Jaime Ferreira Da Silva
Keyword(s):  
Environmental Management ◽  
Conservation Units ◽  
Nature Protection ◽  
Cattle Breeding ◽  
Protection Measures ◽  
Mato Grosso ◽  
Methodological Procedures ◽  
Eventual Loss ◽  
Mato Grosso Do Sul ◽  
Advance Production

Diante do avanço da produção econômica no Brasil e os consequentes impactos sobre os recursos naturais, a criação do Sistema Nacional de Unidades de Conservação – SNUC, Lei 9.985/2000, determina importantes normatizações e incentivo às medidas de conservação de áreas naturais dos diferentes ecossistemas brasileiros, na busca da difícil compatibilização do desenvolvimento econômico com a proteção à natureza. No estado de Mato Grosso do Sul, município de Aquidauana, as medidas de proteção ambiental são essenciais em virtude das características peculiares do ecossistema Pantanal. Com o objetivo de levantar informações acerca das condições ambientais das Unidades de Conservação no Município de Aquidauana-MS, o estudo propõe uma análise preliminar da evolução do uso da terra e cobertura vegetal das Unidades de Conservação que abrangem a área do Pantanal, referente ao período de 1987 a 2012. Os procedimentos metodológicos adotados consistiram no levantamento bibliográfico, cartográfico, iconográfico e da legislação existente, bem como análise da legislação. Os resultados indicam considerável preocupação em relação ao avanço da pecuária e consequente perda da vegetação nativa, implicando na necessidade urgente de monitoramento e  gestão ambiental para medidas de conservação do Pantanal. Palavras-Chave: Pantanal; Unidades de Conservação; Gestão ambiental AbstractAs a result of the economical advance production in Brazil and the consequent impacts on natural resources, the creation of the Conservation Units National System – SNUC, Law 9.985/2000, determinates important regulations and incentive to the conservation rules for natural areas in the different Brazilian ecosystem, seeking to have the difficult compatibility between economical development and the nature protection. In the state of Mato Grosso do Sul, municipality of Aquidauana, the environmental protection measures are essential due to the singular characteristics of the Pantanal ecosystem. Aiming to collect information about the environmental conditions of the Conservation Units in the municipality of Aquidauana-MS, the study proposes a preliminary analysis of the evolution of the land use and vegetal coverage in the Conservation Units that include the wetlands of Pantanal, referring to the periods from 1987 to 2012. The methodological procedures adopted consisted of literature, cartographical and iconographical survey as well as the existing legislation study. The results indicate considerable concern about the cattle breeding rise and eventual loss of the native vegetation, implying the urgent necessity of monitoring and environmental management for Pantanal conservation measures. Keywords: Pantanal; Conservation Units; Environmental Management. 

scholarly journals Improvement of the method of purification of exhaust gases in the production of asphalt concrete

2020 ◽  
Vol 77 (3) ◽  
pp. 218-225
Keyword(s):  
Carbon Dioxide ◽  
Hazardous Waste ◽  
Asphalt Concrete ◽  
Working Life ◽  
Waste Recycling ◽  
Exhaust Gas ◽  
Protection Measures ◽  
Purification System ◽  
Gaseous Waste ◽  
Harmful Substances

The article analyzes the air protection measures of LLP «Asphaltbeton» demonstrated the disadvantages of the efficacy of the purification system for calculating waste emissions and scattering of atmospheric contaminants, as the concentration of sludge substances (dust) is 2.5 times more than 1.206 mg/m3, and nitrogen, the concentration of carbon dioxide and the amount of hydrocarbons in the sanitary dimensions and according to it. The effectiveness of purification of exhaust gas from the asphalt mixer D-645 with the CF-10 chain filter allowed the choice of more systems. The calculations in the FTS-10 showed that it is possible to efficiently clean gas emissions from 95% to 95% by removing the waste from gaseous waste. When preparing asphalt concrete, harmful substances such as dust, oxides, nitrogen and carbon, hydrocarbon are distributed. Therefore, the permissible threshold for all hazardous waste recycling sites has been identified (DHM, mg/m3), which prevents the dust, steam, gas workers from exposing the flu or fluid to the workplace while maintaining a working life of less than 8 hours per day.

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