The efficiency of the radioactive uranyl and thorium ions on the peat moss from aqueous solutions has been investigated under different experimental conditions. The sorption and desorption of uranyl and thorium ions on three types (unmodified peat moss, peat moss treated with HNO(3) and peat moss treated with NaOH) of peat moss were studied by the static method. Peat moss was selected as it is available in nature, in any amount, as a cheap and accessible sorbent. Study on desorption of such ions led to the conclusion that the most favourable desorptive reagent for the uranyl ions is Na(2)CO(3) 1M while, for the thorium ions is HCl 1M. The results obtained show that the parameters here under investigation exercise a significant effect on the sorption process of the two ions. Also, the investigations performed recommend the peat moss treated with a base as a potential sorbent for the uranyl and thorium ions from a radioactive aqueous solution.
Munition constituents (MC) in stormwater runoff have the potential to move these pollutants into receiving bodies at military installations. Here we present further evaluation of a passive and sustainable biofilter technology for removal of dissolved MC from simulated surface runoff by combined sorption-biodegradation processes under dynamic flow conditions. Columns were packed with MC sorbents Sphagnum peat moss and cationized (CAT) pine shavings with and without wood-based biochar.
Many peatlands in North America's Western Boreal Plain have been affected by industrial activities, like the construction of oil well pads.
A study was conducted in Alberta to evaluate the hydrological functions of a partially removed well pad to see if it could support the growth of fen mosses for restoration purposes.
The findings indicated that while some areas of the pad maintained good water table levels, other parts experienced inconsistent water flow, highlighting the need for improvement in connecting the pad's hydrology with surrounding peatlands to better support fen moss establishment.
The rising global temperature makes understanding the impact of warming on plant physiology in critical ecosystems essential, as changes in plant physiology can either help mitigate or intensify climate change. The northern peatlands belong to the most important parts of the global carbon cycle. Therefore, knowledge of the ongoing and future climate change impacts on peatland vegetation photosynthesis is crucial for further refinement of peatland or global carbon cycle and vegetation models.
The balance between photosynthetic carbon accumulation and respiratory loss in plants varies depending on temperature. This leads to a situation where the increased need for carbon is not met when a certain temperature threshold is reached. Over the last two decades, temperature thresholds in carbon metabolism in autotrophic systems have been widely studied.
Potato cultivation in Ecuador's Andes, particularly the Superchola cultivar, accounts for 60% of the country's potato production, with significant observations made from November 2022 to January 2023 related to stem lesions on these plants.
An investigation of symptomatic plants led to the isolation of 14 bacterial strains, with one (M3) identified as pathogenic, causing lesions on potato tubers and stems.
Pathogenicity tests confirmed that only isolate M3 induced disease symptoms in healthy potato plants using specific inoculation techniques.
