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首页> 外文期刊>Environmental toxicology and chemistry >Sewage Sludge Biochars Management-Ecotoxicity, Mobility of Heavy Metals, and Soil Microbial Biomass
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Sewage Sludge Biochars Management-Ecotoxicity, Mobility of Heavy Metals, and Soil Microbial Biomass

机译：污泥生物炭的管理-生态毒性，重金属的迁移性和土壤微生物的生物量

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Production of biochar from sewage sludge may be a promising solution for sewage sludge management and improvement of soil properties, including carbon dioxide sequestration. The aim of the present study was to compare the effects of biochars derived from different sewage sludges on soil physicochemical and biological properties, ecotoxicity, and plant yield. Three biochars (produced at a temperature of 300 degrees C) were applied into sandy acid soil in doses of 0.5, 1, and 2% (w/w). Depending on the type and dose, the application of sewage sludge biochars into the soil caused diverse effects on the parameters of soil biological activity (microbial biomass [Cmic], soil respiration, and value of metabolic quotient). No correlation between the applied dose of biochars and inhibition of Vibrio fischeri luminescence was observed. The factor with a stronger impact on the activity of V. fischeri was the type of biochar. The use of the OSTRACODTOXKIT F test (MicroBioTests) showed that the addition of sewage sludge biochar (regardless of its dose) reduced the soil toxicity to Heterocypris incongruens compared with the control soil. Asignificant increase of Poa pratensis L. biomass was obtained in soils with 1 and2% additions of each of the biochars. The addition of biochars in doses of 1 and 2% to the soil had greater effect on the content of mobile forms of Cu, Pb, and Cd than the 0.5% dose compared with the control. (C) 2017 SETAC
机译：用污水污泥生产生物炭可能是污水污泥管理和改善土壤特性（包括二氧化碳封存）的有前途的解决方案。本研究的目的是比较不同污水污泥产生的生物炭对土壤理化和生物学特性，生态毒性和植物产量的影响。将三种生物炭（在300℃的温度下产生）以0.5％，1％和2％（w / w）的剂量施于酸性酸性土壤中。根据类型和剂量，污水污泥生物炭在土壤中的应用对土壤生物活性参数（微生物生物量[Cmic]，土壤呼吸和代谢商的价值）产生多种影响。没有观察到生物炭的施用剂量与抑制费氏弧菌发光之间的相关性。影响费氏弧菌活性的因素是生物炭的类型。 OSTRACODTOXKIT F测试（MicroBioTests）的使用表明，与对照土壤相比，添加污水污泥生物炭（无论其剂量如何）均降低了土壤对杂螺旋藻的毒性。在每种生物炭中分别添加了1％和2％的土壤，大白菜的生物量显着增加。与对照相比，向土壤中添加1％和2％剂量的生物炭对移动形式的Cu，Pb和Cd的含量的影响要大于0.5％的剂量。 （C）2017年SETAC

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