The Assessment of the Degree of Pollution of Fallow Vegetation With Heavy Metals in Rural Administrative Units of Psary and Ploki in Poland

Petryk, Agnieszka

doi:10.5593/sgem2018/5.2/s20.119

Cited by 3 publications

(3 citation statements)

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“…1359). Examples of such areas occur, e.g., at industry areas in southern Poland located near zinc smelter “Bolesław” (Cd t ∼ 15 mg kg −1 or industry regions close to Trzebinia (Cd t ∼ 43.5 mg kg −1 . However, as the soil is an extremely complex environment dependent on many abiotic and biotic factors, further in situ studies are required to understand all mechanisms occurring in natural conditions.…”

Section: Discussionmentioning

confidence: 99%

Cadmium‐induced changes in the production of siderophores by a plant growth promoting strain of Pseudomonas fulva

et al. 2018

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The impact of increasing Cd exposure on the quality and quantity of siderophores produced by a plant growth promoting Pseudomonas fulva strain was tested to gain insight into the degree of change. P. fulva was cultured in the increasing concentrations of Cd (0, 0.5, 1.0, 2.0 mM). The secreted siderophores were separated by HPLC and characterized by UHPLC-QTOF/MS. In the presence of 2 mM Cd synthesis of siderophores (hydroxamates, catecholates, phenolates) was mitigated compared to the treatments with lower concentrations of Cd (0.5 and 1 mM). Increased synthesis of catecholates in 0.5 and 1 mM Cd and of phenolates in 0.5-2 mM Cd was revealed compared to the variant without Cd . Out of seven different hydroxamates, the secretion of ferrioxamine E was significantly decreased in the highest Cd concentration. Two additional ferrioxamines, X2 and D2, were secreted independent of the presence or absence of Cd . Exposure to Cd change the composition of siderophores secreted by P. fulva with selective promotion of catecholates and phenolates at the expense of hydroxamates. Successful adaptation in a Cd-contaminated soil in the frame of practical applications to promote phytoremediation can be assumed.

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Section: Discussionmentioning

confidence: 99%

Cadmium‐induced changes in the production of siderophores by a plant growth promoting strain of Pseudomonas fulva

et al. 2018

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“…The schematic representation of the setup is depicted in Figure 1, featuring a rectangular electrochemical cell (1) with dimensions of 0.8×0.8×1 m, constructed from transparent plastic and mounted on a container holding the spent etching solution (electrolyte) (9). The container ( 9) is fitted with a submersible centrifugal pump (8), capable of generating pressure in the pipeline up to 1.5•10 5 Pa and maintaining a flow rate of spent etching solution up to 1.6 m 3 / hour. It incorporates an electric heater (10) with a thermal regulation system, comprising the heater itself, a water cooler and a control relay with a contact thermometer.…”

Section: Description Of Research Methodology (Structure Sequence)mentioning

confidence: 99%

“…Agricultural enterprises and their utilized territories for cultivating agricultural products, characterized by soil structures unsuitable for industrial waste disposal, limit the options for establishing waste disposal sites. Consequently, challenges in selecting and establishing landfills for industrial waste, particularly from electroplating and PCB manufacturing, contribute to problems of surface and groundwater contamination, as well as soil pollution (Petryk et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Regenerating Etching Solutions for Circuit Boards while Extracting Copper

Nester,

Yakovyshyna,

Salamon

et al. 2024

J. Ecol. Eng.

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The examination of sludge derived from electroplating manufacturing, printed circuit board production, and paste-like residue from sludge collectors uncover elevated levels of chromium, nickel, copper, cadmium, and various metals. The considerable saturation of water in the region and diverse soil compositions complicate the identification of suitable waste disposal sites, specifically for electroplating byproducts, limiting available spaces and fostering conditions conducive to soil and water contamination by heavy metal ions. The retention of used etching solutions within industrial facilities contributes to environmental pollution, necessitating substantial expenditures for proper disposal at manufacturing sites. Industrial waste, notably from processes such as printed circuit board etching, represents a significant threat to water quality, encompassing various essential technological processes for the production of diverse electronic equipment serving both civilian and military purposes. This article aims to present research outcomes and conducted experiments geared towards developing eco-friendly equipment. Also, the research delves into specific procedures for obtaining concentrated copper precipitates during the regeneration of etching solutions, with the extraction process reducing the generation of waste in the form of a paste-like structure saturated with water on industrial premises. The treatment of wastewater from etching printed circuit boards can be achieved by establishing a closed production cycle for board manufacturing and extracting copper for industrial applications. Finally, the research strives to design equipment for regenerating used solutions with metal extraction in a form suitable for remelting, contributing as an element to environmental conservation. The results facilitate the establishment of a printed circuit board etching line that incorporates the reuse of spent etching solutions in the manufacturing process. For solution regeneration, it is recommended to utilize a regenerator with a titanium VT1-0 cathode. The outcomes of individual tests provide conditions for regenerating spent etching solutions and utilizing the extracted copper in the national economy.

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