Biogeochemistry and element speciation in sapropel from freshwater Lake Dukhovoe (East Baikal region, Russia)

Bogush, Anna; Леонова, Г.А.; Krivonogov, Sergey K.; Bychinsky, V. A.; Bobrov, V. A.; Maltsev, A.E.; Тихова, В. Д.; Miroshnichenko, L. V.; Kondratyeva, L. M.; Kuzmina, A. E.

doi:10.1016/j.apgeochem.2022.105384

Cited by 10 publications

(3 citation statements)

References 48 publications

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“…Studies of peat formation processes and sources of elements are the key points in constructing the concept of peat environment evolution. Trace element concentration data in the peat sediment profile can be used to assess environmental pollution as well as to track sources of substance entry [5][6][7][8][9][10]. Furthermore, knowledge of element speciation and physical-chemical processes existing at the water-solid interface is very important for predicting the accumulation of elements at geochemical barriers and shaping the pattern of diagenetic changes in sediments [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Water–Rock–Organic Matter Interactions in Wetland Ecosystem: Hydrogeochemical Investigation and Computer Modeling

Shvartseva,

Gaskova,

Yurtaev

et al. 2024

Water

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This work investigates how peatlands can be used as archives of past environmental conditions to record changes in atmospheric deposition of some (especially lithophile and chalcophile) elements and any water–rock–organic matter interactions followed by the sedimentation or leaching of others. We have provided a detailed description of both the distribution of various groups of elements and their chemical species in the entire depth of peat deposits. The study analyzes the features of the peat sediment formation and element distribution in the 0–310 cm depth core sample of peat deposits of the Ubinskoye peat bog located in the forest-steppe zone of Western Siberia. The study reveals a profound diagenetic transformation of water and peat chemical composition. Element speciation investigated using the modified Tessier sequential extraction procedure showed the vertical transition of an oxidative geochemical environment to a reducing one with the formation of geochemical barriers for variably valent elements. Computer modeling calculations of saturation indices of pore solutions in relation to a number of minerals allowed us to estimate the degree of equilibrium of the system and the direction of its transformation. Early diagenetic processes lead to the deposition of authigenic minerals. Therefore, barite forms on the redox line, while pyrite is found in the reducing environment. With depth, the content of Ca, Mg and Sr increases, which leads to the formation of authigenic carbonates.

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Section: Introductionmentioning

confidence: 99%

Water–Rock–Organic Matter Interactions in Wetland Ecosystem: Hydrogeochemical Investigation and Computer Modeling

Shvartseva,

Gaskova,

Yurtaev

et al. 2024

Water

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“…Sapropel research has received a lot of attention over the past several decades. Bogush et al [ 23 ] indicate that sapropel studies are divided into two areas, fundamental and practical. The fundamental field includes paleoclimatic reconstructions, geochemical and biochemical studies, and the practical field, namely use in agriculture, balneotherapy, construction, and industry.…”

Section: Introductionmentioning

confidence: 99%

Sapropel as a Binding Material for Wood Processing Waste in the Development of Thermal Insulation Biocomposite

et al. 2023

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When developing new innovative building materials, their performance characteristics as well as their environmental friendliness are important. It is difficult to produce a fully ecological material for building envelopes, because there is a lack of ecological binding materials on the market, good binding materials are very expensive, and cheaper ones have poorer adhesive properties and performance characteristics. In this work, natural organic sapropel was used as an ecological binder. Before use, an organic sapropel was additionally mechanically activated. Its activation efficiency was evaluated on the basis of consistency and tensile strength. Sapropel activation increased its consistency from 112 to 168 mm and its tensile strength from 466 to 958 kPa. Wood processing waste was used as a filler for the thermal insulation biocomposite. Additionally, the wood waste was chopped to regulate the density and main performance properties of the biocomposite. The density of the biocomposite was also regulated using different amounts of sapropel and the degree of compaction of the composite mixture. In this work, the influence of the amount of sapropel, the level of compression of the biocomposite mixture, and the size of the wood waste particles on the thermal conductivity and compressive stress of the biocomposite was analyzed. It was found that the compression level had the greatest influence on both the compressive stress and thermal conductivity, up to 12 times and 43.3%, respectively.

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“…Organic substances in water are in the form of true and colloidal solutions and suspensions. They are represented by amino acids, carbohydrates, proteins, and fatty acids; they also include the remains of dead plant and animal organisms [44][45][46][47].…”

Section: Introductionmentioning

confidence: 99%

Study of the Possibility of Using the Bottom Organomineral Accumulations of the Lakes of the North Kazakhstan Region to Obtain Innovative Fertilizers for the Development of Organic Farming and Agrotourism

Dmitriyev,

Fomin,

Ismagulova

et al. 2023

Sustainability

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This publication presents the results of studies of the bottom sediments (sapropels) of lakes in the North Kazakhstan region. The purpose of this study is to identify the possibility of using sapropels from the lakes of the region in obtaining innovative fertilizers for organic farming. For this purpose, geoinformation technologies, field research, statistics, and chemical and chemical-analytical methods were used (automated spectrometric methods of segmented flow analysis, photocolorimetry, flame photometry, and inductively coupled plasma atomic emission spectrometry). During the first stage of this study, the bottom sediments of three lakes in the region, which were at different stages of eutrophication, were selected to study the chemical composition of the raw materials. The sapropel of Lake Penkovskoye had optimal indicators. Further, an analysis of the territory of the region for the development of agrotourism was carried out. The aim of this study is to substantiate the prospects for the use of sapropel in the production of innovative fertilizers. The natural origin of sapropels allows them to be used in the production of environmentally friendly and safe products. Reducing the use of artificially synthesized mineral fertilizers will make agriculture and the environment safe and sustainable. This will further contribute to the development of agrotourism in the region.

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Biogeochemistry and element speciation in sapropel from freshwater Lake Dukhovoe (East Baikal region, Russia)

Cited by 10 publications

References 48 publications

Water–Rock–Organic Matter Interactions in Wetland Ecosystem: Hydrogeochemical Investigation and Computer Modeling

Water–Rock–Organic Matter Interactions in Wetland Ecosystem: Hydrogeochemical Investigation and Computer Modeling

Sapropel as a Binding Material for Wood Processing Waste in the Development of Thermal Insulation Biocomposite

Study of the Possibility of Using the Bottom Organomineral Accumulations of the Lakes of the North Kazakhstan Region to Obtain Innovative Fertilizers for the Development of Organic Farming and Agrotourism

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