Diagenetic Transformation of Sapropel from Lake Dukhovoe (East Baikal Region, Russia)

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

doi:10.1016/j.proeps.2013.03.161

Cited by 7 publications

(2 citation statements)

References 6 publications

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“…Dėl šių sapropelio savybių, kurios šiuo metu nėra plačiai ištirtos, siekiant platesnio sapropelio panaudojimo galimybių pradedami atlikti įvairūs tyrimai su skirtingos cheminės sudėties sapropeliu Latvijoje bei Rusijoje. Šių tyrimų duomenys parodė, kad skirtingos sudėties sapropelis gali būti pritaikomas įvairiose srityse (Bogush et al 2013;Kovalenko, Adeeva 2009;Stankevica et al 2012).…”

Section: įVadasunclassified

Use of Sapropel for Removal of Heavy Metals From Solution / Silicinio Sapropelio Naudojimas Sunkiesiems Metalams Šalinti Iš Tirpalo

Birgėlaitė

Valskys

Ignatavičius

2016

Mokslas – Lietuvos Ateitis

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Abundant resources, natural and organic material – sapropel containing a multitude of different chemical elements has a great potential to be used in different areas, but for now these rich resources are not widely used because of different chemical composition of sapropel research is very few. The article deals with silicon sapropel as a sorbent is able to absorb heavy metals from the solution depending on the time and the concentration of heavy metals in the solution. The sorption studies of heavy metal concentrations were measured in dry sapropel sample using Thermo Scientific Niton® XL2 series of X-ray fluorescence spectrometer (XPS). Also, the heavy metal concentrations in solution were measured by atomic absorption spectrometer AAnalyst 200 (AAS). Get sapropel sorption capacity results are analyzed through absorption capacity curves and Matala ion removal efficiency curves. Also, comparing the results with the initial concentration of heavy metals sapropel and foreign authors used sorbent properties. After thorough research sapropel sorption capacity can be added to the knowledge of sapropel properties utilization. Gausūs natūralios organinės medžiagos – sapropelio, kurio sudėtyje yra daug įvairių cheminių elementų, – ištekliai turi didelį potencialą būti panaudoti įvairiose srityse. Šiuo metu šie gausūs ištekliai nėra plačiai naudojami, nes atlikta labai nedaug sapropelio įvairios cheminės sudėties tyrimų. Straipsnyje nagrinėjama silicinio sapropelio kaip sorbento geba sorbuoti sunkiuosius metalus iš tirpalo, priklausomai nuo laiko ir sunkiųjų metalų koncentracijos tirpale. Atlikus sorbcijos tyrimus, sunkiųjų metalų koncentracijos matuotos sausame sapropelio mėginyje, naudojant Thermo Scientific Niton® XL2 serijos rentgeno spindulių fluorescencinį spektrometrą (RFS). Taip pat sunkiųjų metalų koncentracijos matuotos tirpale naudojant atominės absorbcijos spektrometrą AAnalyst 200 (AAS). AAS tyrimus atliko atestuota UAB „Vilniaus vandenys“ geriamojo vandens laboratorija. Gauti sapropelio sorbcinės talpos tyrimų rezultatai analizuojami sudarant adsorbcinės talpos kreives bei metalo jonų pašalinimo efektyvumo kreives. Taip pat rezultatai buvo palyginti su pradine sunkiųjų metalų koncentracija sapropelyje ir užsienio autorių naudotų sorbentų sorbcinėmis savybėmis. Atlikus tyrimus gautas 97,4 % sorbento-sapropelio pašalinimo efektyvumas sorbuojant šviną ir 97,24 % sorbuojant cinką. Tyrimų rezultatų paklaida patikrinta lyginant išmatuotą sorbento talpą su apskaičiuotąja. Švino adsorbcinės talpos paklaida siekia 4–9 mg/kg, o cinko 1–14 mg/kg.

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Section: įVadasunclassified

Use of Sapropel for Removal of Heavy Metals From Solution / Silicinio Sapropelio Naudojimas Sunkiesiems Metalams Šalinti Iš Tirpalo

Birgėlaitė

Valskys

Ignatavičius

2016

Mokslas – Lietuvos Ateitis

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“…However, currently there is a problem of utilization of sapropels. Therefore, the use of bottom sediments for feed purposes is a very relevant topic [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

The effect of feeding a natural feed additive on the performance of broiler chickens

et al. 2020

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Natural feed additive is made on the basis of bottom sediments of the steppe reservoirs of the Krasnodar Territory and is a dry powder of a grayish tint. Mineralization of local bottom sediments is 6.5 g / kg, calcium content is 29.7 g / kg, macronutrients from 1.04 to 25.8 g / kg, trace elements from 0.03 to 0.7 g / kg. The medium reaction is from neutral to slightly alkaline. Using sapropel feed additives (SFA), it was possible to increase the gross live weight gain of broiler chickens by 1.7-2.0% while reducing feed costs per 1 kg of gain by 0.5%. All internal organs of the poultry were developed within normal limits. There was profitability increase by 1.1% in growing broilers, when using sapropel feed additives in full feed. Blood biochemical values were at an optimal level. Therefore, this feed additive can be considered as a natural feed ingredient; however, it is necessary to further develop a complex feed additive from natural components that partially or completely meets the requirement of the poultry in biologically active substances and micronutrients.

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Contribution of silica-scaled chrysophytes to ecosystems services: a review

et al. 2022

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Silica-scaled chrysophytes are a unique group of protists representing a major component of numerous aquatic habitats where they can significantly contribute to human well-being in many ways. In the present review, altogether 14 ecosystem services provided by silica-scaled chrysophytes were identified highlighting their importance and roles in aquatic ecosystems. The most important supporting services are related to primary production, nutrient- and biogeochemical cycling, as well as sediment formation. Additionally, they are involved in the regulation of climate, maintenance of air quality, biological control and water purification processes (as regulating services). The most relevant provisioning services include their usefulness in environmental monitoring (paleolimnology, ecological status assessment and climate modelling), production of biochemicals and provision of genetic resources. Cultural services are associated with aesthetic values, inspiration source and knowledge system as well. Although silica-scaled chrysophytes are one of the least studied groups of algae, here they are shown to provide important benefits and to have many further powerful opportunities for humans, thus their detailed research in the future is emphasised as an important key for human well-being.

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Diagenetic Transformation of Sapropel from Lake Dukhovoe (East Baikal Region, Russia)

Cited by 7 publications

References 6 publications

Use of Sapropel for Removal of Heavy Metals From Solution / Silicinio Sapropelio Naudojimas Sunkiesiems Metalams Šalinti Iš Tirpalo

Use of Sapropel for Removal of Heavy Metals From Solution / Silicinio Sapropelio Naudojimas Sunkiesiems Metalams Šalinti Iš Tirpalo

The effect of feeding a natural feed additive on the performance of broiler chickens

Contribution of silica-scaled chrysophytes to ecosystems services: a review

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