scholarly journals Problems of ecology and ensuring environmental safety in relation to toxic “Krasny Bor” dump site

2020 ◽  
Vol 175 ◽  
pp. 14015 ◽  
Author(s):  
Elena Smirnova
Keyword(s):  
Industrial Waste ◽  
Environmental Safety ◽  
Comprehensive Analysis ◽  
Disposal Site ◽  
Dump Site ◽  
Balanced Development ◽  
The North ◽  
Project Structure ◽  
Landfill Disposal ◽  
Toxic Industrial Waste

In the article the author raises the problem of ecology and ensuring environmental safety in relation to toxic “Krasny Bor” landfill. Comprehensive analysis of the existing system shortcomings to storage toxic industrial waste has been given. The principal threats of a dangerous object to the environment being in a critical state have been discussed. Reliable and high-quality environmental monitoring in the landfill is still absent. At all stages of the life cycle of the “Krasny Bor”, bureaucratic confusion impedes the development of environmentally oriented investment activities for the reclamation of toxic pits. The main elements of the project structure to remediate the “Krasny Bor” have been considered. It has been shown that the project must include all acceptable technological solutions related to landfill disposal and that it is necessary to focus on environmental protection and environmental safety of the area. In the framework of current situation at the disposal site, it does not seem impossible to solve the issues of ensuring environmental safety in the direction of moving towards sustainable and balanced development of the North-Westregion.

Anaerobic treatment of residual lemon pulp in digesters with semi-continuous feed

2013 ◽  
Vol 67 (3) ◽  
pp. 514-520
Author(s):  
A. R. Navarro ◽  
Z. Lopez ◽  
J. Salguero ◽  
M. C. Maldonado
Keyword(s):  
Industrial Waste ◽  
Animal Feed ◽  
Oxygen Demand ◽  
Anaerobic Treatment ◽  
Raw Material ◽  
Comparative Tests ◽  
Economic Problems ◽  
The North ◽  
Potential Applications ◽  
Continuous Feed

Lemon growing areas in the north of Argentina have industries that produce concentrated juice, peel and essential oil and generate a significant amount of liquid and solid waste as lemon pulp. In Argentina, despite the potential applications that the pulp has as animal feed and human and industrial raw material, only 10% is used for these purposes and the rest is discarded into the environment causing many ecological and economic problems. There is little information in the literature on biotechnologies for the treatment of this industrial waste. This paper shows that lemon pulp is a suitable substrate to be treated by anaerobic digestion. We obtained 86 and 92% reduction of chemical oxygen demand in a digester with a semi-continuous feed and retention time of 10 and 20 days respectively and a productivity of 0.406 g CH4/g VS h. Comparative tests showed that pre-digesting the pulp improved the process of digestion and increased biogas generation by 20%.

scholarly journals Polszczyzna kilku wsi z okolic Dociszek na tle polszczyzny północnokresowej

2015 ◽  
Vol 37 ◽  
pp. 383-406
Author(s):  
Jadwiga Kozłowska-Doda
Keyword(s):  
Comprehensive Analysis ◽  
Joint Research ◽  
Remote Areas ◽  
The North ◽  
Study Results ◽  
North Eastern ◽  
Polish Language ◽  
Grand Duchy Of Lithuania ◽  
Historical Periods ◽  
Grand Duchy

The Polish speech of several villages in the neighborhood of Doсishki compared with the north-eastern peripheral dialectThe scientific studies on the Polish language on the territory of the former Grand Duchy of Lithuania have focused mainly on specific regions and historical periods. Despite the large number of the recorded materials and their analyses, scientists were unable to establish joint research programs and perform regular investigations; they also failed to create a map of different settlements, so as to develop a holistic picture of the languages of the region. Today, it is difficult to compare the study results of dialectologists and other scholars, because there is no comprehensive analysis of the peripheral Polish dialects.The paper compares the features of the Polish dialect from the area of Docishki with Polish ethnic dialects, as well as with other eastern peripheral dialects. Some other phonetic and morphological features are characterized by the resulting substrate and linguistic contacts. The differences in the Polish dialect of Voronovo district in Belarus are also presented.The analysis of the material has yielded that the Polish speech in the neighbourhood of  Doсishki is closely related to the north-eastern peripheral dialects, known as polszczyzna kresowa ‘borderland Polish’. It is mostly characterized by the same features as the Polish language of the area around Vilnius (including a part of the present-day Belarus). However, certain features of the local Polish dialect in villages near Doсishki are not attested in the neighbouring towns, but they are present in a few remote areas, such as the Kaunas region and only a complete description of a dialect will enable linguists to detect such features. Польская речь нескольких деревень в окрестностях Дотишек на фоне северо-восточного периферийного диалектаИсследования польского языка на территории былого ВКЛ проводились до сих пор нерaвномерно как во времени, так и в пространстве. Несмотря на большое количество записанных и проанализированных материалов, учёным не удалось выработать совместных программ и методoлогии исследований, не получилось также разработать сетку населённых пунктов с целью представить в итоге целостную языковую картину региона. Сегодня трудно сопоставить результаты исследований диалектологов и других специалистов в связи с нехваткой комплексных анализов периферийных польских говоров. Автором сравниваются особенности польского говора с окрестностей Дотишек с польскими этническими говорами, а также другими восточными периферийными говорами; характеризуются некоторые фонетические и морфологические черты, обусловленные субстратом, а также языковыми контактами; сделана попытка показать различия в польской речи на территории Вороновщины на Беларуси. Как показывает анализ материала, польская речь в окрестностях Дотишек тесно вплетена в контекст северо-восточного периферийного диалекта, известного как „польшчызна крэсова”. Её характеризуют в основном те же особенности, что и польский язык исторической Виленщины (включая и часть современной Беларуси). Однако определённые языковые черты местного польского говора в расположенных вблизи Дотишек деревнях не были зафиксированы в соседних ареалах, зато известны на несколько отдалённой территории, напр. в районе Каунаса, и только полная характеристика языковой системы речи позволяет такие черты выявить.

Technologies for Safe Handling of Drilling Waste during Well Construction in the Ob Bay

2021 ◽  
pp. 52-60
Author(s):  
A.D. Dzyublo ◽  
◽  
S.О. Borozdin ◽  
E.E. Altukhov ◽  
◽  
...  
Keyword(s):  
Waste Disposal ◽  
Industrial Waste ◽  
Oil And Gas ◽  
Environmental Safety ◽  
Kara Sea ◽  
Oil Field ◽  
Gas Condensate ◽  
The Arctic ◽  
Field Calculation ◽  
Drilling Waste

Development of the Russian oil and gas fields in the Arctic requires ensuring industrial and environmental safety of conduct of the operations. Large and unique oil and gas condensate fields are discovered in the southern part of the Kara Sea. The Kamennomysskoye-Sea, Severo-Kamennomysskoye, Semakovskoye, Parusovoye, etc. gas condensate fields are located in the Ob Bay of the Kara Sea. The raw material base of the Severo-Obskoye gas condensate field, unique in terms of the reserves, will become the basis for future Arctic LNG projects. Based on the published data, the initial recoverable total hydrocarbon resources in the Ob and Taz bays are about seven billion tons. Active exploration and commissioning of the already discovered fields require the large volumes of well drilling in a freezing sea, the presence of permafrost, and gas hydrates. During construction of the wells and operation of the offshore ice-resistant oil and gas production platforms, it is required to ensure the disposal of drilling waste (cuttings) and domestic water. There are two technologies for waste disposal — injection into the reservoir or into the clay formations. The first one is used in onshore fields, the second one — on the shelf. Injection into a clay reservoir is successfully used in the Lunskoye gas field on the shelf of the Sakhalin island, and on the Prirazlomnoye oil field in the Pechora Sea. The possibility of using the method and the selection of a reservoir for injecting waste into it requires a geological justification, and the reservoir should ensure a stable injectivity of the required volume. The article presents the results of modeling the injection into the formation of drilling waste, and the waste of the household activities for the Kamennomysskoe-Sea gas condensate field. Calculation was made concerning the zone of absorption of the technological waste into the designed well of the offshore ice-resistant stationary platform. Formation allocation for waste injection was made according to the data of a complex of offshore wells geophysical studies. Three packs of sandy-argillaceous rocks with high reservoir properties were selected as the object of industrial waste disposal. Сalculation was carried out related to the radius of the spread of waste (effluent) in the target reservoir considering drilling and operation of twenty five wells, the construction of which is planned for five years. The results of modeling the process of pumping industrial waste of various types into an absorption well showed that the planned volumes can be successfully disposed of in the selected objects. This will allow to ensure functioning of the marine industry and its environmental safety.

scholarly journals Restoration of degraded mountain pastures of the Сentral Сaucasus by targeted sowing of seeds of perennial grasses

2020 ◽  
Vol 175 ◽  
pp. 09013
Author(s):  
Eduard Soldatov ◽  
Sergey Dzhibilov ◽  
Irina Soldatova ◽  
Lyudmila Guluyeva
Keyword(s):  
Environmental Sustainability ◽  
Dry Matter ◽  
Bare Soil ◽  
Environmental Safety ◽  
Perennial Grasses ◽  
Resource Saving ◽  
The North ◽  
Central Caucasus ◽  
North Ossetia ◽  
Main Factor

The unsystematic use of mountain pastures with overgrazing of grasses has led to a change in the ecological balance of agrolandscapes, in which 80-85% of the Central Caucasus lands have turned into a state of varying degrees of degradation. In these cases, an important measure in the restoration of degraded mountain forage lands is the sowing of perennial grasses into sparse grass and on bare soil, which increases stiffness. Therefore, the development and creation of a seeder for targeted seeding of grass mixtures in solving the problem is relevant. The authors of the article have developed a new resource-saving way to improve mountain forage lands using a modernized seeder. Tests and studies were carried out at a mountain hospital, located on the southeastern exposition of the Dargavs depression of the North Ossetia-Alania, at an altitude of 1650 m above sea level. It was found that at a concentration of 17.2 MJ of energy in 1 kg of dry matter of feed, the total collection in the control plot was 29.7 GJ, and in the seeded experimental field 85.3 GJ. At the same time, the formation of a dense sod with the accumulation of 104.2 c / ha of root mass is the main factor in the environmental sustainability of mountain agrolandscapes, ensuring environmental safety

An Assessment of the Radiological Impact of Human Intrusion at the UK Low Level Waste Repository (LLWR)

2011 ◽  
Author(s):  
Tim. Hicks ◽  
Tamara Baldwin ◽  
Richard Cummings ◽  
Trevor Sumerling
Keyword(s):  
Environmental Safety ◽  
Assessment Model ◽  
Disposal Site ◽  
Barrier Materials ◽  
Low Level ◽  
Geotechnical Investigations ◽  
Safety Case ◽  
Waste Repository ◽  
The Uk

The UK Low Level Waste Repository Ltd submitted an Environmental Safety Case for the disposal of low-level waste (LLW) to the Environment Agency on the 1st of May 2011. The Environmental Safety Case (ESC) presents a complete case for the environmental safety of the Low Level Waste Repository (LLWR) both during operations and in the long term (Cummings et al, in these proceedings). This includes an assessment of the long-term radiological safety of the facility, including an assessment of the potential consequences of human intrusion at the site. The human intrusion assessment is based on a cautiously realistic approach in defining intrusion cases and parameter values. A range of possible human intrusion events was considered based on present-day technologies and credible future uses of the site. This process resulted in the identification of geotechnical investigations, a housing development and a smallholding as requiring quantitative assessment. A particular feature of the site is that, because of its proximity to the coast and in view of expected global sea-level rise, it is vulnerable to coastal erosion. During such erosion, wastes and engineered barrier materials will be exposed, and could become targets for investigation or recovery. Therefore, human intrusion events have been included that are associated with such activities. A radiological assessment model has been developed to analyse the impacts of potential human intrusion at the site. A key feature of the model is the representation of the spatial layout of the disposal site, including the engineered cap design and the large-scale spatial heterogeneity of radionuclide concentrations within the repository. The model has been used to calculate the radiation dose to intruders and to others following intrusion at different times and at different locations across the site, for the each of the selected intrusion events, considering all relevant exposure modes. Potential doses due to radon and its daughters in buildings constructed on excavated spoil from the repository are a particular concern. Options for managing the emplacement of the radium-bearing waste packages with regard to human intrusion have been assessed. These calculations show that a managed waste emplacement strategy can ensure that calculated doses are consistent with regulatory guidance levels.

Optimization Features in Management of Salaspils Research Reactor Decommissioning Waste

2003 ◽  
Author(s):  
A. Dreimanis
Keyword(s):  
Radioactive Waste ◽  
Waste Management ◽  
Research Reactor ◽  
Optimal Solution ◽  
Environmental Safety ◽  
Radioactive Waste Disposal ◽  
Disposal Site ◽  
Radioactive Waste Management ◽  
Safety Control ◽  
Simplified Approach

Management of decommissioning waste is considered as complex task of seeking for optimal solution in the environment of various competing technical, safety and socio-economical factors. If from the formal mathematics viewpoint it is a multi-parameter optimization task, then for real conditions simplified approach for such problem should be applied. We propose to decompose this task into the set of optimization analysis for particular steps, and then in each step it is easier to find optimum. For the real case of management of radioactive waste arising from dismantling and decommissioning of Salaspils Research Reactor (SRR) we consider following main optimization steps: 1) the choice of the decommissioning concept — among three elaborated versions — with estimation of the foreseen radioactive waste amount for disposal, recycling and free release, taking into account also potential exposures and financial resources; 2) establishment of national radioactive waste management agency “RAPA” Ltd., ensuring common administration and maintenance of the shutdown SRR and radioactive waste (RW) disposal site — RAPA manages some decommissioning activities of SRR and shall actively participate together with envisaged decommissioning operator in this process also in future, but in all stages will keep full responsibility of waste management; 3) optimization of radioactive waste transportation: i) organizational aspects (packing, transportation time, schedule, route, etc.), ii) environmental safety control; 4) optimization arrangement of space for radioactive waste disposal: i) choice of the best strategy to ensure a new space, ii) optimization of the vault size — to be able accommodate decommissioning waste without being oversized; 5) strategy of treatment, conditioning and packing of solid decommissioning waste; 6) optimization of liquid decommissioning waste management — its conditioning together with the solid radioactive waste; 7) socio-economical optimization features: i) existing infrastructure for RW disposal, ii) financial compensation for local municipality, iii) international cooperation, technical and financial assistance by EU, IAEA, Sweden. The proposed optimization features used in the developing of Concept for radioactive waste management in Latvia for the period 2003–2010 (which corresponds to the approved decommissioning period of SRR) supplement existing separate optimization aspects of decommissioning waste management and could be considered as simplified integral set of factors for elaboration of optimal strategy for decommissioning waste management.

Compensatory Restoration of Mangrove Habitat Following the Tampa Bay Oil Spill

2001 ◽  
Vol 2001 (1) ◽  
pp. 761-767 ◽  
Author(s):  
Gary S. Mauseth ◽  
Jane S. Urquhart-Donnelly ◽  
Roy R. Lewis
Keyword(s):  
Mangrove Forest ◽  
Monitoring Program ◽  
Tampa Bay ◽  
Fuel Oil ◽  
Assessment Process ◽  
Performance Criteria ◽  
Disposal Site ◽  
The North ◽  
Dredge Spoil ◽  
Compensatory Restoration

ABSTRACT In 1993, an incident involving three vessels near the entrance to Tampa Bay, near St. Petersburg, Florida, resulted in a discharge approximately 300,000 gallons of No. 6. fuel oil into the waters off Egmont Key. The oil contacted the shores from Egmont Key to locations approximately 14 miles to the north. Oil also entered Boca Ciega Bay through John's Pass and impacted four small islands that supported mature overwash mangrove forest. A cooperative damage assessment process was developed between the Responsible Parties (RPs) and the trustees for the natural resources: the state of Florida, the National Oceanic and Atmospheric Administration (NOAA), and the U.S. Fish and Wildlife Service (USFWS). Through the cooperative process, several alternatives for primary and compensatory restoration were developed. In considering alternatives to compensate for impacts to epibenthic communities, fish and bird habitats, wetlands, and mangrove communities, the trustees and the RPs considered purchase of shoreline habitat and restoration of mangrove forest at several sites. The RP developed a proposal to purchase and deed into public ownership in perpetuity, a 10.67-acre parcel of land on the west bank of Cross Bayou in Boca Ciega Bay that had been used as a disposal site for dredge spoil in the past. This site consisted of approximately 5.0 acres of uplands, 4.4 acres of mangrove forest, and 1.4 acres of nonmangrove intertidal and subtidal habitat. The objective of the project was to establish a typical Tampa Bay mangrove forest and a roadside buffer free of exotic plant species. The secondary goals were to establish a typical Tampa Bay salt marsh dominated by smooth cordgrass (Spartina spp.) as a successional precursor to mangrove recruitment by seeds and seedlings. Tidal exchange through the site was reestablished to improve water quality and increase export of mangrove detritus and import of high-quality tidal waters. The project was designed and constructed by the RPs with the approval and supervision of the trustees. The project was completed and title transferred to Pinellas County, Florida in summer 1999. A monitoring program was developed and performance criteria established by trustee representatives and the RPs. The monitoring program currently is being conducted and has met performance criteria to date. This project demonstrates the positive result of trustees and the RPs working together to provide compensation to the environment.

The Use of Carbonate Sludge in the Production of Porous Aggregate

2020 ◽  
Vol 24 (6) ◽  
pp. 15-19
Author(s):  
A.V. Kolpakov ◽  
E.S. Abdrakhimova
Keyword(s):  
Industrial Waste ◽  
Liquid Glass ◽  
Glass Composition ◽  
Physical And Mechanical Properties ◽  
Ceramic Materials ◽  
Environmental Safety ◽  
Raw Material ◽  
Material Base ◽  
Carbonate Sludge ◽  
The Russian Federation

The possibilities of obtaining porous fillers based on carbonate sludge and liquid-glass composition are considered. One of the issues of industrial waste disposal is the creation of waste-free technologies. The use of nanotechnology-based carbonate sludge in the production of porous aggregates increases environmental safety. A porous aggregate with high physical and mechanical properties was obtained. The use of carbonate sludge in the production of porous aggregate contributes to: a) recycling of industrial waste; b) environmental protection; C) expanding the raw material base for obtaining ceramic materials for construction. A patent of the Russian Federation was obtained for the obtained method of producing a porous aggregate using a liquid-glass composition.

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