TECHNICAL ARTICLESerpentine Mining Wastes—Materials for Soil Rehabilitation in Cu-Ni Polluted WastelandsSlukovskaya, Marina V.1; Kremenetskaya, Irina P.1; Drogobuzhskaya, Svetlana V.1; Ivanova, Liubov A.2; Mosendz, Irina A.1; Novikov, Andrey I.1Author Information 1I. V. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Centre, Russian Academy of Sciences, Apatity, Murmansk Reg., Russia. 2N. A. Avrorin Polar-Alpine Botanical Garden-Institute, Kola Science Centre, Russian Academy of Sciences, Apatity, Murmansk Reg., Russia. Address for correspondence: Dr. Marina V. Slukovskaya, Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center, Russian Academy of Sciences, 184209 Academgorodok 26a, Apatity, Murmansk Reg., Russia. E-mail: firstname.lastname@example.org Financial Disclosures/Conflicts of Interest: The reported study was funded by Russian Foundation for Basic Research according to research project no. 16-35-60022 and joint-stock company “Kola Mining and Metallurgical Company” (JSC Kola MMC). No conflict of interest was declared. Received March 21, 2018. Accepted for publication November 8, 2018. Soil Science: July/August 2018 - Volume 183 - Issue 4 - p 141-149 doi: 10.1097/SS.0000000000000236 Buy Metrics Abstract ABSTRACT The successful rehabilitation of wastelands contaminated with industrial aerial pollution that contain a high concentration of heavy metals is promising through the use of alkalizing and adsorptive materials. Serpentine-rich mining wastes were deemed an ideal candidate for soil rehabilitation in the impact zone of Cu-Ni smelters. These mining wastes had favorable properties such as high phytoavailable content of Ca (3–10 g kg−1) and Mg (5–25 g kg−1) and have an alkaline pH of 7.5 to 8.5. Another advantage of these wastes is the ability to reduce Ni and Cu mobility, which are two important pollutants. Field experiments were conducted in 2011–2013 to create a grass cover on the top of a 5-cm layer of mineral materials near two Cu-Ni smelters in the Russian Arctic zone. Three types of serpentine-rich wastes and quarry sand (control group) were used for Technosol engineering on industrial barrens. There was a steady development of herbal communities on Technosols formed from the serpentine-rich mining waste. The biomass of the aboveground portions of the plants and the height of the turf on these Technosols was three times higher than in the control group using quarry sand. Serpentine-rich mining wastes enriched the underlying soil with phytoavailable Ca and Mg by a factor of 4 and 25, respectively, as compared with quarry sand. Serpentine minerals had reduced the mobile (water-soluble and exchangeable) concentration of Ni and Cu by greater than a factor of 10 due to acid neutralization, sorption, and the formation of sparingly soluble compounds. Summarily, the proposed remediation technology through the use of serpentine-rich mining waste succeeded in reducing the toxicity of heavy metals, increased the concentration of macronutrients, and promoted the sustainable development of plant cover. Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.