Hydrochemical characteristic of sapropels in Novosibirsk oblast

Страховенко, В Д; Roslyakov, N. A.; Syso, A. I.; Ermolaeva, N. I.; Zarubina, E. Yu.; Taran, Oxana P.; Пузанов, А. В.

doi:10.1134/s0097807816030167

Cited by 12 publications

(9 citation statements)

References 1 publication

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“…Bottom sediments with ash content above 85% are mineral silts. The sapropel composition is determined by the species composition and the degree of biota productivity (Strakhovenko et al, 2016). Phytoplankton actively extracts nitrogen and phosphorus from water thus reducing the amount of organic substances in the water and increasing their content in the bottom sediments.…”

Section: Discussionmentioning

confidence: 99%

Role of natural and climatic factors in formation of autochthonic organic substance streams in small lakes of the south of Western Siberia

Yermolaeva

Zarubina

Страховенко

et al. 2020

LFWB

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Aquatic ecosystems, especially small lakes, are influenced by numerous global and regional factors, which provide and regulate the production at all levels of any aquatic ecosystem thus affecting them overall. These factors can vary both in parallel and independently creating new combinations and changing the degree of their impact on any ecosystem component. Particular attention should be paid to the risks of climate change-induced transformations of small lake ecosystems. Fluctuations in temperature, precipitation amount, water exchange with the catchment area, including ionic composition variations caused by changes in evaporation conditions can irreversibly transform ecosystems as a whole, and their production characteristics, in particular.In biochemistry terms, Western Siberia is a complicated region consisting of vast areas with low and high natural content of macro-and microelements in the environment. Such sites are located in different natural areas and geomorphological structures; they differ in composition and a number of elements in the food chain. Lakes with different types of hydroecosystems and different chemical composition of water and bottom sediments can be found in the same catchment area. The main objectives of this study are to identify the role of external physical and chemical factors in productivity formation of small lakes ecosystems in the south of Western Siberia as well as to assess the impact of these factors on some ecosystem elements (phytoand zooplankton, macrophytes, benthos) in the light of climate change. Material and methodsThe explored lakes are along a 700 km southnorth transect latitude from 51°15'N for 56°45'N in the territory of the South of Western Siberia within Altai Krai and the Novosibirsk region. The lakes were

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Section: Discussionmentioning

confidence: 99%

Role of natural and climatic factors in formation of autochthonic organic substance streams in small lakes of the south of Western Siberia

Yermolaeva

Zarubina

Страховенко

et al. 2020

LFWB

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“…Most of the water bodies that develop permanent density stratification are saline and they include (semi-) enclosed seas (i.e. such as Mediterranean, Baltic or Black seas) (Rossignol-Strick et al, 1982;Conley et al, 2009;Wegwerth et al, 2018) and lakes (Strakhovenko et al, 2016). In such water system, the water circulation is impeded, thus preventing oxygenation that ultimately leads to anoxia (Kidd et al, 1978).…”

Section: Definition Composition and Genesismentioning

confidence: 99%

The Saline Organic-Rich Sediments: a Short Overview

Banciu¹

2018

Air and Water Components of the Environment Conference

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The saline organic-rich sediments: A short overview. Organicrich sediments (or 'sapropels') are complex organo-mineral matrices that form at the O2-depleted bottom of stagnant water basins. Besides geochemical transformations, slow rate microbially-driven processes underpin the early diagenesis of these sediments. The fossil sapropels found in various marine or lacustrine environments are known as proxies for past climate or hydrological fluctuations. Present-day organic-rich sediments have been described both in fresh ('gyttja') and brackish or saline waters mostly in the boreal zones. They are currently used for agricultural or therapeutic purposes. Few saline lakes with significant deposits of modern sapropels are known worldwide. On Romanian territory, saline lakes with substantial organic-rich sediments are found in the Transylvanian Basin (e.g. Ursu Lake, Sovata) and in the SouthEastern part (e.g. the inland, athalassohaline Amara, and the coastal, thalassohaline Techirghiol lakes). The exploration of microbial diversity inhabiting the saline sapropels will improve our current understanding on the processes leading to formation and mineralization of organic-rich sediments of economic value.

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“…2020]. The issue of the environmental state of minor rivers and other water bodies was considered in numerous works, and much attention was paid to the development of the environmental protection measures to prevent pollution of small rivers by enterprises of various industries [Isakov & Chukaeva 2016, Strakhovenko et al 2016]. Nevertheless, despite the state of knowledge, the problem of environmentally efficient and economically expedient technogenic sediment utilization remains unsolved [Chalov 2015b, Pashkevich et al 2017a, Pashkevich et al 2020.…”

Section: Introductionmentioning

confidence: 99%

Bottom Sediments in a River under Acid and Alkaline Wastewater Discharge

Kharko

Matveeva

2021

Ecol. Eng. Environ. Technol.

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The drainage flows of metal loads into the drainage and infiltration waters of mine dumps of enterprises have a dramatic effect on small rivers in industrial regions. The paper considers the outcomes of geochemical monitoring of the Karagaily River and assesses the transformation of the acid-base conditions depending on the influence of the facilities of the enterprise. The results of engineering and environmental surveys, including sampling of bottom sediments, laboratory preparation, chemical elemental analysis of samples and X-ray diffraction analysis of mineral composition, were presented. A complex technogenic alkaline sorption-hydroxide barrier was found at the mixing point of acidic river waters (the influence of dump and quarry waters) and alkaline wastewater of treatment facilities, where the deposited iron hydroxide adsorbs ore minerals, which reduces their outflow into larger rivers and increases the self-purification potential of the river. Further interaction of iron hydroxide with the acid mine drainage and calcium bicarbonate of wastewater results in pyritization of bottom sediments. Excavation and dewatering of the pyrite-containing bottom sediments will allow their joint use with tailings and ore-processing waste for re-extraction useful components.

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Hydrochemical characteristic of sapropels in Novosibirsk oblast

Cited by 12 publications

References 1 publication

Role of natural and climatic factors in formation of autochthonic organic substance streams in small lakes of the south of Western Siberia

Role of natural and climatic factors in formation of autochthonic organic substance streams in small lakes of the south of Western Siberia

The Saline Organic-Rich Sediments: a Short Overview

Bottom Sediments in a River under Acid and Alkaline Wastewater Discharge

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