Effect of Hydro-Physical Properties of Peat on Regulation of Peatland Drainage Systems

Misnikov, O. S.

doi:10.1051/e3sconf/201910501010

Cited by 5 publications

References 10 publications

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Physico-chemical properties of peatland located in the impact zone of municipal landfill

et al. 2020

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The results of studies of peat located in the impact zone of municipal landfill are presented. It is established that according to the peat genetic horizons profile the distribution of the mobile fractions of heavy metals is manifested in a gradual decrease with depth. The content of heavy metals (manganese, copper, zinc, lead, cobalt, mercury) in the peat does not exceed the MAC, except for cadmium, which is spread by waste from the landfill. The source of cadmium in landfills is waste containing lacquers and paints, fluorescent lamps, batteries etc. Cadmium sulfide is the basis for yellow paints used in vehicle dyeing, textile production, soap making. Peat is characterized as very poor in micromycetes distribution. Some micromycetes detected are indicators of high mineral content and low heavy metal content. Analysis of peat micromycetes by growth rate showed that the slowest growing micromycetes owns the largest proportion - 70%. The distribution by color showed that dark-colored micromycetes of the Moniliaceae, characterized by toxicity, predominate. According to the humus reserve, peat is slightly humus. It is not recommended to use such peat for crop cultivation. Instead, peat can be a source of fuel under conditions of industrial development and compliance with existing rules and state standards.

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Physico-chemical properties of peatland located in the impact zone of municipal landfill

et al. 2020

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Peat Extraction from Lake Sediments in the Northern Districts, the Sakha (Yakutia) Republic

Kuporova

Belyakov

2021

E3S Web Conf.

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The article The article examines the possibility of extracting sod fuel peat to replace imported coal. A possible raw material base is considered for producing molded solid peat-based fuel in permafrost conditions. The production of molded peat products in the form of sod peat is proposed as an option. The experimental work on drying sod peat shows that peat can be extracted and dried to standard moisture content in the conditions of northern Yakutia. A flowsheet of producing sod peat from lake peat by hydraulicking is presented. According to the flowsheet the peat mass is loosened, liquefied by lake water, sucked in by a dredger pump and pumped through a pulp pipeline to the shore, where it is dewatered in geotubes to the molding water content. After dewatering, the geotubes are cut and the peat mass is loaded into a peat spreader mixing the peat, forming it into cylindrical pieces, and spreading it on a drying field. When molded, the peat structure is modified chemically to obtain strong and durable products. Having reached sufficient strength, peat sods are piled in a stack supplied with a trench for artificial ventilation at its base. The peat is dried to a final moisture content of 24–30%.

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Estimation of Rational Modes and Regimes of Production of Sod Peat with Milling-Forming Machine by Quality Indicators

Guseva

2021

E3S Web Conf.

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Modern trends in designing mining machines dictate that their power consumption should be reduced. However, the end product quality is often not taken into account. The objective of the research is to improve the operation of a screw press of the milling and moulding machine used for producing sod peat in order to ensure the necessary quality of domestic fuel. To that end, the authors conducted an experiment simulating the sod peat production and determined the density and strength of the sod obtained during the improved machine operation. The experiments were carried out for the three pressure coefficients, further, the coefficient influence on the sod density and strength was evaluated. The sod peat density was assessed with modern electronic devices having a low error rate. The novelty of the research is to reconcile the issues of ensuring the minimum power consumption for producing domestic sod biofuel with its qualitative characteristics. The obtained indicators of the sod peat quality in terms of density and strength prove its improved moulding along with the minimum power consumption at a pressure coefficient of 2.22. Thus, the improved production of sod peat requires minimum power consumption, provides the required quality of the end sod and reduces the loss of feedstock due to crumbling.

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Effect of Hydro-Physical Properties of Peat on Regulation of Peatland Drainage Systems

Cited by 5 publications

References 10 publications

Physico-chemical properties of peatland located in the impact zone of municipal landfill

Physico-chemical properties of peatland located in the impact zone of municipal landfill

Peat Extraction from Lake Sediments in the Northern Districts, the Sakha (Yakutia) Republic

Estimation of Rational Modes and Regimes of Production of Sod Peat with Milling-Forming Machine by Quality Indicators

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