Vermiculite-Lizardite Industrial Wastes Promote Plant Growth in a Peat Soil Affected by a Cu/Ni Smelter: a Case Study at
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Vermiculite-Lizardite Industrial Wastes Promote Plant Growth in a Peat Soil Affected by a Cu/Ni Smelter: a Case Study at the Kola Peninsula, Russia Ekaterina Tarasova 1 & Svetlana Drogobuzhskaya 2 & Felipe Tapia-Pizarro 3 & Dmitry V. Morev 4 & Vasyl A. Brykov 1,5 & Elvira A. Dovletyarova 1 & Marina Slukovskaya 6 & Claudia Navarro-Villarroel 7 & Anna A. Paltseva 1,8 & Alexander Neaman 3 Received: 1 October 2019 / Accepted: 26 January 2020 # Sociedad Chilena de la Ciencia del Suelo 2020
Abstract Some industrial barren areas are extreme habitats created by the deposition of airborne pollutants from non-ferrous smelters. One of such barrens exists in the vicinities of the Cu/Ni smelter, located at the Kola Peninsula, Murmansk region, Russia. This study aimed at evaluating in laboratory conditions the efficiency of various vermiculite-lizardite wastes (industrial wastes of local origin) as soil amendments for plant growth promotion. Peat topsoil (0–20 cm) was collected in the vicinity of the Cu/Ni smelter. Total soil concentrations were 1612, 1481, and 63 mg kg−1 for Ni, Cu, and Co, respectively, and soil pH was 4.3. Soils were amended with lime waste and different types of vermiculite-lizardite wastes (coarse, fine, and thermo-activated at 700 °C), leaving one soil untreated. Weekly wetting-drying cycles, performed during 1 month, allowed amendments to react in the soil. All soils were cultivated with Lolium perenne L. for 21 days under controlled conditions. The plant growth was not influenced by high soil Cu concentration, while Ni and Co caused phytotoxicity. A mix of 10% (w/w) of different vermiculite-lizardite wastes with 10% (w/w) of lime improved the plant growth. Thermo-activated waste showed the best results for promoting plant growth and reducing foliar Ni concentrations from 1022 to 88–117 mg kg−1. However, the plants presented Ni phytotoxicity even in the amended soils and this requires further studies to find a way to reduce it. Keywords Nickel . Copper . In situ immobilization . Phytoremediation . Phytostabilization . Lolium perenne . Phytotoxicity
1 Introduction The long-term deposition of airborne pollutants from nonferrous smelters can create industrial barrens (also known as industrial deserts), which are extreme habitats for plant
communities (Kozlov and Zvereva, 2007). One of such barrens exists in the vicinities of the Cu/Ni-smelter of the Kola Mining and Metallurgical Company (67° 56′ N, 32° 49′ E), located at the Kola Peninsula, Murmansk region, Russia. Currently, this Cu/Ni smelter is known as the Monchegorsk
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s42729-020-00188-z) contains supplementary material, which is available to authorized users. * Alexander Neaman [email protected] 1
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Department of Landscape Design and Sustainable Ecosystems, RUDN University, Moscow, Russia Kola Science Centre, Russian Academy of Sciences, I.V. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Mater
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