THE PCA OF PHYTOMINING: PRINCIPLES, CHALLENGES AND ADVANCES

There is a number of commercially valuable elements whose concentration in the crust of the earth is too low for an economic mining with traditional approaches. However, phytotechnologies which take advantage of the capacity of certain plant species to take up these elements from the soil solution and accumulate them to large amounts in their biomass can be used for an economic winning of various metals and metalloids. This specific use of phytoextraction which has already been as one technology in the phytoremediation of contaminated sites is called “phytomining”

STUDYING THE POSSIBILITY OF USING RED-BROWN CLAY FOR RECLAMATION OF COAL WASTE DUMPS

The coal mining industry, as the source of the main fuel resource and the main energy resource, has particular importance for Ukraine. The largest coal regions of Ukraine include Donetsk, Lviv-Volynskyi and Dnipropetrovsk brown coal ponds. Their total area is 3% of the total area of Ukraine

BGSU University Admissions System: Campus Training Module

The purpose of this project was to create an online training module to acquaint faculty and staff at Bowling Green State University with the University Admissions System and provide them with an overview of the functionality and resources available to them for their recruitment needs. Delivered through the Canvas environment, the course offers flexibility in content delivery through a variety of methods including documents, videos, quizzes and encouragement of self-exploration, in an attempt to accommodate a myriad of learning styles. Upon completion of each section, users should feel empowered to navigate UAS and utilize the data to drive their recruitment goals and initiatives. Subject matter experts, from the BGSU Office of Admissions, were asked to review the content and appropriateness of the course in relation to the project’s objectives. The overall response was positive and reassuring of the training’s fulfillment of those goals. This feedback supports the plan to allow new UAS users to enroll in the course as they gain access to the system and to prioritize the upkeep of the content as UAS expands and additional departments rely on its resources. Recommendations included additional areas for course content development and a frequently asked questions section for general inquiries most commonly posed by departments around campus

BIOAVAILABILITY OF ELEMENTS FOR EFFECTIVE PHYTOREMEDIATION AND PHYTOMINING: THE ROLE OF RHIZOSPHERE PROCESSES

The success of phytoremediation (especially phytoextraction) and phytomining depends heavily on the bioavailability of target elements, which, among others, is a function of soil mineral phases, soil organic matter, pH and redox potential. The use of soil additives which, e.g., change soil pH or increase the amount of chelating compounds, has been propagated in the past in order to desorb the target elements from the soil matrix. These additives, however, may have negative environmental consequences by causing leaching of toxic elements from the soil due to enhanced mobility in the soil solution. For this reason less dangerous alternatives are necessary which use the natural capacity of plants to increase availability of target elements in their root environment

SHORT-TERM EFFECT OF DISPERSION OF RESIDUAL SLUDGE ON THE SOIL EUCALYPTUS CAMALDULENSIS DEHNH, TIARET (ALGERIA)

Silvicultural upgrading of sewage sludge is an alternative to current solutions. It presents a lower risk of contamination of the human food chain than its use in agriculture. In this context, the use of forest plantations can offer many advantages

APPLICATION OF REMOTE SENSING TO ESTIMATE ABOVE GROUND BIOMASS IN TROPICAL FORESTS OF INDONESIA

This work aims to estimate Above Ground biomass (AGB) of a tropical rainforest in East Kalimantan, Indonesia using equation derived from the stand volume prediction and to study the spatial distribution of AGB over aforest area. The potential of remote sensing and field measurement data to predict stand volume and AGB were studied Landsat ElM data were atmospherically corrected using Dark Object Subtraction (DOS) technique, and topographic corrections were conducted using C-correction method Stand volume was estimated using field data and remote sensing data using Levenberg-Marquardt neural networks. Stand volume data was converted into the above ground biomass using available volume - AGB equations. Spatial distribution of the AGB and the error estimate were then interpolated using kriging. Validated with observation data, the stand volume estimate showed integration of field measurement and remote sensing data has better prediction than the solitary uses of those data. The AGB estimate showed good correlations with stand volume, number of stems, and basal area

Electronically tuned optical filters

Electro-optical effect of light modifying type for electronically controlling colo

Effect of substrate properties and phosphorus supply on facilitating the uptake of rare earth elements (REE) in mixed culture cropping systems of Hordeum vulgare, Lupinus albus and Lupinus angustifolius

This study presents how phosphate (P) availability and intercropping may influence the migration of rare earth elements (REEs) in legume–grass associations. In a replacement model, Hordeum vulgare was intercropped with 11% Lupinus albus and 11% Lupinus angustifolius. They were cultivated on two substrates, A (pH = 7.8) and B (pH = 6.6), and treated with 1.5 g P m−2 or 3 g P m−2. Simultaneously, a greenhouse experiment was conducted to quantify carboxylate release. There, one group of L. albus and L. angustifolius was supplied with either 200 µmol L-1 P or 20 µmol L-1 P. L. albus released higher amounts of carboxylates at low P supply than L. angustifolius, while L. angustifolius showed the opposite response. Plants cultivated on substrate B accumulated substantially higher amounts of nutrients and REE, compared to substrate A. Higher P supply did not influence the leaf and stem P concentrations of H. vulgare. Addition of P decreased REE accumulation in barley monocultures on alkaline soil A. However, when H. vulgare was cultivated in mixed culture with L. angustifolius on alkaline substrate A with high P supply, the accumulation of REE in H. vulgare significantly increased. Conversely, on acidic substrate B, intercropping with L. albus decreased REE accumulation in H. vulgare. Our findings suggest a predominant effect of soil properties on the soil–plant transfer of REEs. However, in plant communities and within a certain soil environment, interspecific root interactions determined by species-specific strategies related to P acquisition in concert with the plant’s nutrient supply impact REE fluxes between neighbouring plants