И. П. Беланов, Н. Б. Наумова, И. С. Семина, О. А. Савенков
{"title":"ШЛАКИ МЕТАЛЛУРГИЧЕСКОГО ПРОИЗВОДСТВА – ПЕРСПЕКТИВНЫЙ МАТЕРИАЛ ДЛЯ РЕКУЛЬТИВАЦИИ ТЕХНОГЕННЫХ ОТХОДОВ","authors":"И. П. Беланов, Н. Б. Наумова, И. С. Семина, О. А. Савенков","doi":"10.17073/0368-0797-2018-12-987-992","DOIUrl":null,"url":null,"abstract":"The article describes results of the microplot field trial to investigate potential use of metallurgical slags for fracture of capillary rim during reclamation of toxic waste dumping areas, such as enrichment plants tailings, solid waste dumps, etc., with minimal possible introduction of fertile soil layer. Such approach allows energy-effective utilization of metallurgical wastes. Four slags, produced at EVRAZ West Siberian plant by different technologies were used: white nonferrous, blast-furnace, converter and electric furnace slags. These slags were used as an inert material, underlying thin fertile soil layer in experimental microplots, where perennial plants (legume-grass mixture) were sawn. For each slag there was check variant (no fertilizer added), and variants with potassium humic agents, and their combination as mineral fertilizers. Aboveground phytomass at the end of the grow ing season varied from 17 to128 g/m2. Converter and blast furnace slags, which had the least phytotoxicity, appeared to be better inert materials. Mineral fertilizer, introduced itself and combined with humic agents, has increased aboveground phytomass 2 – 4 times as compared with check variant. Used separately, humic agent did not affect plant production, whereas used together with mineral fertilizer, it increased phytomass 1.6 – 1.8 times. Thus combined introduction of mineral fertilizer and humic agents is recommended to stimulate germination abilit y and phytomass production. Converter and blast furnace slags can be used as inert materials for reclamation with minimal fertile soil layer application, whereas white non-ferrous and electric furnace slags are not recommended for such application due to their high phytotoxicity, negatively affecting growth and development of perennial plants, used for reclamation.","PeriodicalId":35527,"journal":{"name":"Izvestiya Vysshikh Uchebnykh Zavedenij. Chernaya Metallurgiya","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Izvestiya Vysshikh Uchebnykh Zavedenij. Chernaya Metallurgiya","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.17073/0368-0797-2018-12-987-992","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Materials Science","Score":null,"Total":0}
引用次数: 1
Abstract
The article describes results of the microplot field trial to investigate potential use of metallurgical slags for fracture of capillary rim during reclamation of toxic waste dumping areas, such as enrichment plants tailings, solid waste dumps, etc., with minimal possible introduction of fertile soil layer. Such approach allows energy-effective utilization of metallurgical wastes. Four slags, produced at EVRAZ West Siberian plant by different technologies were used: white nonferrous, blast-furnace, converter and electric furnace slags. These slags were used as an inert material, underlying thin fertile soil layer in experimental microplots, where perennial plants (legume-grass mixture) were sawn. For each slag there was check variant (no fertilizer added), and variants with potassium humic agents, and their combination as mineral fertilizers. Aboveground phytomass at the end of the grow ing season varied from 17 to128 g/m2. Converter and blast furnace slags, which had the least phytotoxicity, appeared to be better inert materials. Mineral fertilizer, introduced itself and combined with humic agents, has increased aboveground phytomass 2 – 4 times as compared with check variant. Used separately, humic agent did not affect plant production, whereas used together with mineral fertilizer, it increased phytomass 1.6 – 1.8 times. Thus combined introduction of mineral fertilizer and humic agents is recommended to stimulate germination abilit y and phytomass production. Converter and blast furnace slags can be used as inert materials for reclamation with minimal fertile soil layer application, whereas white non-ferrous and electric furnace slags are not recommended for such application due to their high phytotoxicity, negatively affecting growth and development of perennial plants, used for reclamation.