نتایج جستجو برای: peat ash

تعداد نتایج: 28455  

2005
H. Biester D. Selimović

Halogens are strongly enriched in peat and peatlands and such they are one of their largest active terrestrial reservoir. The enrichment of halogens in peat is mainly attributed to the formation of organohalogens and climatically controlled humification processes. However, little is known about release of halogens from the peat substrate and the distribution of halogens in the peat pore water. ...

Journal: :IOP conference series 2023

Abstract The production of Portland Cement (PC) has been shown to be responsible for 5-8% global CO2 emissions. This led class F fly ash based geopolymer concrete being developed as a substiture PC reduce these However, research that each unique characteristics and requires specific mix design ash. is can occupy significant amount time. Furthermore, before the adopted commercial application it ...

Mehdi Sharifi Mohammad Reza Ardakani

Organic vegetable production has specific research and innovation requirements which are not shared by other parts of the food and farming sector. A pot experiment was conducted to investigate the interactive effects of few permitted organic inputs such as arbuscular mycorrhizal fungi, biochar, and different ratios of peat:worm casting on tomato (Solanum lycopersicum L.) growth, mycorrhizal dep...

Type of growing medium affects growth of the hydroponic crops. In order to select a suitable medium for hydroponic lemon balm, two greenhouse experiments were carried out on growing media containing different particle sizes of perlite and peat moss mixed with perlite. In the first experiment, growing media treatments were very fine perlite (<0.5 mm), fine perlite (0.5-1 mm), medium perlite (1-1...

2016
Mikk Espenberg Marika Truu Jaak Truu Martin Maddison Hiie Nõlvak Järvi Järveoja Ülo Mander

This study examined physiochemical conditions and prokaryotic community structure (the bacterial and archaeal 16S rRNA genes and mcrA gene abundances and proportions), and evaluated the effect of reed canary grass cultivation and mineral fertilisation on these factors, in the 60 cm thick residual peat layer of experimental plots located on an abandoned peat extraction area. The archaeal proport...

Journal: :British journal of industrial medicine 1991
T Sandström B Kolmodin-Hedman M C Ledin L Bjermer S Hörnqvist-Bylund N Stjernberg

Mechanised production of peat for fuel consumption is associated with high concentrations of organic dust, which is inhaled by the peat workers. In the present study 17 workers at two peat bogs in northern Sweden were examined. Personal sampling of total dust and the respirable fraction was performed during several workshifts. Dynamic spirometry was carried out before and at the end of shifts. ...

2002
J. Holden T. P. Burt

Blanket peat covers the headwaters of many major European rivers. Runoff production in upland blanket peat catchments is flashy with large flood peaks and short lag times; there is minimal baseflow. Little is known about the exact processes of infiltration and runoff generation within these upland headwaters. This paper presents results from a set of rainfall simulation experiments performed on...

2017
Z. Adnan M. M. Habib

The laboratory tests for measuring the effects of small strain to the shear strength and maximum stiffness development of post-cyclic degradation of hemic peat are reviewed in this paper. A series of laboratory testing has been conducted to fulfil the objective of this research to study the post-cyclic behaviour of peat soil and focuses on the small strain characteristics. For this purpose, a n...

Journal: :Energies 2023

The pyrolysis processing of waste tires is a promising technology for obtaining products with high marginality. One the possible methods solid product utilization its combustion energy production, but this complicated by poor reactivity and sulfur emissions. char together more reactive fuels could solve problem. current study devoted to characteristics carbon residue mixed biomass: pine sawdust...

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