نتایج جستجو برای: peat ash

تعداد نتایج: 28455  

2008
Maya G. Nifontova

Studies of the last decades have shown that peat and peat-bogs function as an important factor for environment protection. Due to good take-up and filtering qualities, peat-bog deposits perform to absorb petroleum products, different natural and human-made chemical and radioactive pollutants. Due to low salinity of bog water and turf humic acids, the peat-bed is capable to extract cations of ca...

Journal: :The Science of the total environment 2002
T M Mighall P W Abrahams J P Grattan D Hayes S Timberlake S Forsyth

This paper presents geochemical data from a blanket peat located close to a Bronze Age copper mine on the northern slopes of the Ystwyth valley, Ceredigion, mid-Wales, UK. The research objective was to explore the possibility that the peat contained a geochemical record of the pollution generateD by mining activity. Four peat monoliths were extracted from the blanket peat to reconstruct the pol...

2012
C. Zwanenburg

Stability assessment of existing dikes build on soft soil generates questions on the available stability calculation techniques and material models. Especially peat behaviour is not easily captured by standard design methods. This has led to disapproval, based on calculations, of dikes that have been in operation for several hundreds of years. To establish the weak points in the stability asses...

2014
Tone Bjordal Johansen Angelika Agdestein Bjørn Lium Anne Jørgensen Berit Djønne

Mycobacterium avium subsp. hominissuis is an environmental bacterium causing opportunistic infections in swine, resulting in economic losses. Additionally, the zoonotic aspect of such infections is of concern. In the southeastern region of Norway in 2009 and 2010, an increase in condemnation of pig carcasses with tuberculous lesions was seen at the meat inspection. The use of peat as bedding in...

Journal: :FEMS microbiology ecology 2013
Carolyn-Monika Görres Ralf Conrad Søren O Petersen

Grasslands established on drained peat soils are regarded as negligible methane (CH4 ) sources; however, they can still exhibit considerable soil CH4 dynamics. We investigated archaeal community composition in two different fen peat soils and one bog peat soil under permanent grassland in Denmark. We used terminal restriction fragment length polymorphism (T-RFLP) fingerprinting and clone librar...

Journal: :Journal of The Energy Institute 2023

Ash deposition-related issues adversely affect the thermal transfer and cause corrosion to biomass fired utility boilers. Various models have been proposed estimate slagging propensities for firing fuels of different origins. However, there is no reliable general applicable method that available assessing fuel without carrying out extensive experimental testing. In addition, empirical correlati...

2016
Marina Vilenica Andreja Brigić Mladen Kerovec Sanja Gottstein Ivančica Ternjej

Peat bogs are unique wetland ecosystems of high conservation value all over the world, yet data on the macroinvertebrates (including mayfly assemblages) in these habitats are still scarce. Over the course of one growing season, mayfly assemblages were sampled each month, along with other macroinvertebrates, in the largest and oldest Croatian peat bog and an adjacent stream. In total, ten mayfly...

Journal: :Journal of water and health 2005
Matthew R Olson Richard P Axler Randall E Hicks Jerald R Henneck Barbara J McCarthy

Viral contamination of public waters is a leading health concern around the world, including in Minnesota where cold climate, abundant onsite systems on poor or thin soils, and abundant surface water resources present a significant risk of wastewater pathogens reaching sensitive water sources. Three alternative onsite treatment systems, a sand filter, peat filter and subsurface-flow constructed...

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