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The composition of urban dust can affect the health of urban populations, making it necessary to study its elemental composition and its sources. Our objectives were: a) to identify the main emission sources of heavy metals, and b) to evaluate the influence of land use and road type on the elemental composition of urban dust. 100 samples of urban dust taken in San Luis Potosí were analyzed using FRX...
Azo dyes are the main group of dyes used in different industrial applications. These dyes are highly toxic for aquatic life, so their removal is of utmost importance before they can be disposed of in a main water body. The present study focused on degrading/mineralizing the synthetic reactive dye wastewater. Initial experiments were done with four indigenous white rot fungi. P. chrysosporium (PC)...
Our paper analyzes nitrogen and phosphorus removal from sewage in a biofilter. The analysis was based on the multi-variant simulations of the combined system: fixed-film – activated sludge performance. An activated sludge ASIM 2d model related with the model of pollutions’ transformations in fixed film was used for the calculations. The results of exploitation analyses performed on the objective treatment...
The construction of gates in watercourses could change the original hydrological and hydrodynamic processes of drainage basins, eventually having a widespread cumulative influence on river habitat and fish resources. In this study, the hydrodynamic force in the Yongjiang River basin, China, was calculated using the MIKE FLOOD model, including water depth and flow velocity. Subsequently, the habitat...
The aim of our research was to develop an immobilization method for photocatalysts that is an alternative to the sol-gel or dip-coating methods and can be simply scaled up for technical applications. The investigated photocatalyst was TiO₂, which was electrochemically deposited onto a cathode made of stainless steel. This deposited film was photocatalytically active. In order to enhance the photoactivity...
To investigate secondary pollution issued during the preparation of sintered brick from waterquenched yellow phosphorus slag, the composition of slag was experimentally measured in this study. The thermal conversion process and gas phase products associated with S-, P-, F-, and As-containing species present in the heating system were theoretically calculated by means of thermochemical software FactSage...
The aim of this study was risk assessment regarding the local scours below sills that stabilize the Warta riverbed below Jeziorsko Reservoir. The studied river sills were constructed due to the reduction of riverbed erosion that took place downstream behind the dam reservoir. The research area embraced two reaches: in the vicinity, sills No. 3 (km 480+902) and No. 4 (km 479+225) were built in order...
Diffusive gradients in thin films (DGT) technology has been increasingly proved to be a promising tool for accurately predicting plant-available phosphorus (P) in soil using air-dried samples. However, the effects of the air-drying process on DGT-measured P are unknown compared to those of using moist samples in which plant roots survive throughout a growing season. We investigated the differences...
The acid pre-washing of zero valent iron for improving removal efficiency would deduce the secondary pollution in groundwater, and more fine particles of zero valent iron would reduce the permeability of aquifers. In order to better understand the approaches of nitrate removal, a series of laboratory experiments was conducted in this study. Batch tests showed that washed zero valent iron powder and...
Pharmaceutical wastewater has become an important source for emitting antibiotics into aquatic environments. However, this study aims to evaluate the potential of different advanced oxidation processes like ozonation, photolysis, and photo-catalysis for degrading a fluoroquinolone antibiotic ciprofloxacin (CIP) in real pharmaceutical wastewater. The raw wastewater contains a high concentration of...
This study investigates the influence of initial pH on anodic biofilm formation of microbial electrolysis cells. Initial pH affects the activities of microorganisms in MEC, and furthermore will affect hydrogen (H₂) generation. Therefore, we explore the effects of initial pH on anodic biofilm formation of microbial electrolysis cells and the intrinsic reasons. In a single-chamber MEC, with different...
The aim of this research was the valorization of farms of different types and sizes located in 26 nitrate-vulnerable zones as to their specialization and intensity of production using a comprehensive evaluation method. The analysis was performed using survey data from 2010-2013 covering 164 Polish farms. The quality assessment was divided into two modules: production and environmental. The production...
A novel natural polymeric adsorbing material γ-cyclodextrin immobilized starch (CS-γCD) was prepared by introducing host functional molecule γ-cyclodextrin (γ-CD) into starch, using epichlorohydrin (ECH) as a cross-linking agent and sodium hydroxide as a catalyst, via the aqueous-phase synthesis method. The γ-cyclodextrin content in CS-γCD was up to 8.15% determined by the bromocresol green (BCG)...
An experiment was carried out to compare cadmium and copper absorption and mineral nutrition accumulation in pennisetum and tall fescue in order to select an appropriate grass to remediate Cd/Cu-contaminated soil and explore their detoxification mechanisms of contamination by mineral elements. The biomass remained constant in tall fescue under each Cd addition level and increased in pennisetum until...
Timely and accurately obtained regional construction land information for environmental protection, ecological construction, and regional planning is important. In this study, we used Landsat7 ETM+ images acquired in 2002 and Landsat8 images acquired in 2016 as data sources, and performed maximum likelihood classification and class masking in order to extract construction land information in Tongren...
Afforestation activity needs serious feasibility in as much as it is a work of establishing a new facility. Moreover, the process of selecting the land to be afforested; determining site conditions; selecting suitable tree species, provenance, and clones; the planting or sowing techniques; and planning of the environmental transport network are all costly. Determining suitable areas for environmental...
It is important to manage water resources of the upper Yellow River basin for the new Silk Road economic belt. In recent decades, under the combined human activities and influence of climate, the hydrologic regime of the upper Yellow River basin shows remarkable variations that have caused many issues. So potential human indicated influence has been drawing increasing attention from hydrologists and...
Statistical applications have been used to evaluate ecosystem quality in recent years. Factor analysis (FA) is a powerful multivariate statistical technique widely used to evaluate environmental pollution. Seydisuyu Stream Basin is located in the Central Anatolia Region of Turkey and it is one of the most important branches of the Sakarya River. There is a globally important boron mine on the basin...
Climate change created predominantly by burning fossil fuels leads to increased pressure on biodiversity. It may cause extinction in lizard species over the forthcoming years. Lizard species that are unable to adjust rapidly enough to the ecological alterations due to climate change are particularly under threat. Therefore, vulnerable lizard species should be monitored and adopt climate change scenarios...
Lakes are one of the most important wetland types on the earth with many ecosystem functions. With continuing economic growth and climate change, lake abundance and surface areas throughout the world have been threatened by many factors, including by human and environmental disruptions. However, we still have limited knowledge on how human activities and climate change affect lake reductions and associated...
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