• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>British Biotechnology Journal >Changes in Heavy Metal Contents of a WasteEngine Oil Polluted Soil Exposed to Soil pHAdjustments
【24h】

Changes in Heavy Metal Contents of a WasteEngine Oil Polluted Soil Exposed to Soil pHAdjustments

机译：土壤pH值调整对废机油污染土壤中重金属含量的变化

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The present study investigated the role of soil pH adjustments in heavy metals concentrations in waste engine oil (WEO) - polluted soils. Sun-dried top soil (0-10cm) was measured into buckets. WEO was added to soil and mixed thoroughly to obtain similar concentrations of 2.5% w/w oil in soil. The polluted soil was thereafter amended with NPK (15:15:15) fertilizer to enhance microbial activity. The buckets were transferred into a well ventilated screen house with inherent constant room temperature (27ºC). The entire setup was divided into 5 sets. Each set was wetted daily with 200ml of different pH solutions (pH 3, 5, 7, 9, and 11) for a period of 3 months. There were significant reductions in heavy metal concentrations particularly at pH of 5. There were significant reductions in total hydrocarbons contents (THC) of polluted soils at 2 months after pollution from 1882.32 mg/kg at pH 3 to 325 mg/kg at pH 5, compared to THC of soil at 1 week after pollution at pH 7 (3425.63mg/kg).
机译：本研究调查了土壤pH调节在废机油（WEO）污染的土壤中重金属浓度中的作用。将晒干的表层土壤（0-10厘米）放入桶中。将WEO添加到土壤中并充分混合，以在土壤中获得类似浓度的2.5％w / w油。此后，用NPK（15:15:15）肥料改良被污染的土壤，以增强微生物活性。将这些桶转移到通风良好的屏蔽室内，该屏蔽室内具有固有的恒定室温（27ºC）。整个设置分为5套。每组每天用200ml不同的pH溶液（pH 3、5、7、9和11）润湿3个月。重金属浓度显着降低，尤其是在pH值为5时。污染后2个月，污染土壤的总烃含量（THC）从pH 3的1882.32 mg / kg显着降低到pH 5的325 mg / kg显着降低。与pH值为7（3425.63mg / kg）污染后1周土壤的THC相比。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号