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首页> 外文会议>Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009 >Artificial Soil Solution Chemistry of the Stabilized Sewage Sludge by Alkaline Fly Ash and Mine Tailing
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Artificial Soil Solution Chemistry of the Stabilized Sewage Sludge by Alkaline Fly Ash and Mine Tailing

机译：粉煤灰与尾矿稳定污泥的人工土壤溶液化学

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摘要

Stabilized sewage sludge (SS) by alkaline fly ash (FA) and mine tailing as artificial soil to be applied on the ecological rehabilitation at mining junkyard offers a potential viable utilization of the industrial by-product, as well as solves the shortage of soil resource in mine area. An incubation experiment with different ratio of SS and FA was conducted to evaluate the solubility of major constituents. Results showed that the EC of municipal sewage sludge was decreased by Fly ash significantly. FA weakened the nitrification of total N from SS when proportion of FA in the mixture was more than 50%. Soil solution K concentration was depressed by FA application, whereas concentrations of Ca, Mg, Na, and CI were increased in the end of the incubation. Thus, adding fly ash to municipal sewage sludge could reduce the release of potassium from sewage sludge, decrease the salinity and improve the chemical property of the amended soil.
机译：碱化粉煤灰（FA）和矿山尾矿作为人工土壤的稳定污水污泥（SS）用于采矿垃圾场的生态修复，为工业副产品提供了可行的可行方法，并解决了土壤资源短缺的问题在矿区。进行了不同比例的SS和FA的温育实验，以评估主要成分的溶解度。结果表明，粉煤灰显着降低了城市污水污泥的EC。当混合物中FA的比例超过50％时，FA会减弱SS中总氮的硝化作用。施用FA降低了土壤溶液K的浓度，而在培养结束时增加了Ca，Mg，Na和CI的浓度。因此，在城市污水污泥中添加粉煤灰可以减少污水污泥中钾的释放，降低盐分并改善改良土壤的化学性质。

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