Browsing by Publisher "HARD Publishing Company"
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Adsorptive removal of Pb2+ ions from aqueous solutions by peat
(Polish journal of environmental studies, 2015)Peat has been evaluated as an efficient sorbent. In this paper, peat for removal of Pb 2+ ions from aqueous solution was studied. Peat samples were analyzed for total lead, pH, humidity, and TC (total carbon). Major factors ... -
Analysis and assessment of biological treatment processes in a small-scale wastewater treatment plant
(Polish journal of environmental studies, 2018)With stricter requirements for wastewater treatment, small-scale individual wastewater treatment plants can provide a financially attractive alternative to a sever connection in locations far from the existing sewer network. ... -
Application of a natural cover during sewage sludge composting to reduce gaseous emissions
(Polish journal of environmental studies, 2012)Large amounts of sewage sludge are generated in the process of sewage treatment. Sewage treatment and sewage sludge treatment and handling inevitably cause the problem of gas emissions and unpleasant smells. Degradation ... -
Application of dynamic olfactometry to determine odor concentrations in ambient air
(Polish journal of environmental studies, 2013)Our article deals with the problem of unpleasant odors, which in recent years have become increasingly acute. In this paper describes Vilnius wastewater treatment facilities located near residential districts of Vilnius, ... -
Assessment and research of river restoration processes in regulated streams of Southeastern Lithuania
(Polish journal of environmental studies, 2016)The article deals with the auto-naturalization problems of regulated streams in Lithuania. Research on such streams overgrown with woody vegetation was conducted in the Neris River basin in the Baltic Highlands. We chose ... -
Assessment of changes in the total carbon content and carbon dioxide emissions in Neris Park soil using the simulating program DNDC
(Polish journal of environmental studies, 2022)Simulating total carbon changes in soil and carbon dioxide emissions was carried out using the simulating program DNDC. The assessment covered soils of three different types of land-use (arable, meadow and forest). The aim ... -
Assessment of lake bottom sediment pollution by lead and cadmium
(Polish journal of environmental studies, 2014)The aim of the current study is to investigate the relationship between physico-chemical parameters, and to determine levels of certain heavy metals (Pb and Cd) in bottom sediments of Lake Sudotėlis in Lithuania. Organic ... -
Development of a fluidised batch process using natural powdered zeolite (Clinoptilolite)
(Polish journal of environmental studies, 2007)The purpose of this research was to examine water treatment improvement by using natural powdered zeolite (clinoptilolite). Experiments were carried out at a laboratory and in a pilot-scaled water treatment plant. The ... -
Evaluating the impact of neogene sediments on the river runoff formation
(Polish journal of environmental studies, 2015)Due to the recently increasing frequency of extreme changes in river runoff regime, scientific literature has dealt with the characteristics of runoff formation. Studies have been carried out on analyzing climate change ... -
Experimental investigations and evaluation of pollutant emissions into ambient air by rolling stock engines
(Polish journal of environmental studies, 2014)Emissions by rail transport account for around 1% of total pollutant emissions. The greatest negative influence on human health is made by PM, NOx , and others pollutants. Our article describes the methodology for measuring ... -
Extraction and mapping of soil factors using factor analysis and geostatistical analysis on intensively manured heterogenous soils
(Polish journal of environmental studies, 2011)To investigate both natural variability and anthropogenic inputs, a small lake catchment that collects water from slurry-irrigated (similar to 300 m(3).ha(-1) annual application) natural meadows was explored. Analysis of ... -
Influence of H2O2 modification on the adsorptive properties of birch-derived biochar
(Polish journal of environmental studies, 2020)Biochar, which is rich in aromatic carbon and minerals, is a product of biomass pyrolysis at temperatures ranging from 350ºC to 1000ºC in oxygen-limited environments. In recent years biochar has generated much interest in ... -
Investigating natural zeolite and wood ash effects on carbon and nitrogen content in grain residue compost
(Polish journal of environmental studies, 2011)The key aim of this work is to analyze and evaluate the possibilities of using fermented wastes (grain residue) for composting, taking into account carbon and nitrogen. The key performance task was to carry out research ... -
Investigation and assessment of Cs-137 and K-40 accumulation in vegetable segments
(Polish journal of environmental studies, 2015)Our article deals with the accumulation of artificial (Cs-137) and natural (K-40) radionuclides in the segments of carrots (Daucus carota L.), potatoes (Solanum tuberosum L), beet (Beta vulgaris L), and head cabbage (Brassica ... -
Investigation and evaluation of green waste composting parameters
(Polish journal of environmental studies, 2011)With the growth in the living standard of the European population, increasing amounts of waste are accumulating. Waste poses a threat not only to the environment, but to human health as well. The major part of waste consists ... -
Investigations of gravel road dust minimization by applying different salt solutions
(Polish journal of environmental studies, 2014)Dust on gravel roads is reduced through the application of various dust minimization materials, most frequently calcium chloride. However, global efforts have been intensified to find new effective materials that cause the ... -
Peculiarities of the vertical thermal regime of lake Tapeliai
(Polish journal of environmental studies, 2019)A nonlinear model of temperature dependence on lake depth is proposed for interpreting the vertical thermal structure of a lake. The model has two critical temperatures: T1 * – the maximum density water temperature Tcr = ... -
Peculiarities of thermal regime formation of near-bottom lake water
(Polish journal of environmental studies, 2015)Our paper presents data on the annual course of the temperatures of surface sediments in deep bottom areas of a lake that has been assigned a “moderately-warm” designation. It is shown that the highest temperatures of those ... -
Removal of formaldehyde from synthetic wastewater using natural and modified zeolites
(Polish journal of environmental studies, 2016)Chemically modified and natural zeolite consisting of clinoptilolite and mordenite minerals (Sokirnica Mine, Ukraine) was selected for testing the adsorption ability of formaldehyde. Modified zeolite was produced from ... -
Spatial and temporal variation in ozone and nitrogen dioxide in the seaside recreation area environment
(Polish journal of environmental studies, 2016)Our experiment was conducted during the summer (seven days) in the seaside recreation area of Curonian Spit, Lithuania, with a view to observe the dispersion of ozone (O3 ) and nitrogen dioxide (NO2 ) in this territory. ...