陈键锋女友:土壤污染的处理

Soil Characteristics土壤特性

• Before applying a specific soil treatment methodology, technicians must consider soil porousness, moisture content, oxygen, compaction and the overall temperature, since these factors can influence both the contaminants and the chemicals used to treat the soil.申请一个特定的土壤处理方法之前，技术人员必须考虑的土壤porousness，水分，氧气，土壤板结和整体的温度，因为这些因素可能会影响用于治疗的土壤中的污染物和化学品。

Microbial Agents微生物制剂

• Some soil treatment methods rely on microbial agents.一些土壤处理方法依赖于微生物制剂。 Various organisms are unaffected by the pollutants and can consume or break down the pollutants, returning these materials to the ecosystem.各种生物都受到污染物的影响，可以消耗或分解的污染物，这些材料返回到生态系统。 The microbes can remain in the soil, multiplying.这些微生物可以留在土壤中，乘。 However, these organisms might not necessarily remain at the site of the soil pollution, so technicians might need to add more.然而，这些微生物可能不一定留在土壤污染的网站，使技术人员可能需要增加更多。

Phytoremediation植物修复

• Plants can play a role in removing contaminants from the soil in a process known as phytoremediation.植物可以起到消除作为一个过程称为植物修复土壤中的污染物的作用。 Some species of plants are able to take up the pollutants through their roots without damage to the plants.有些种类的植物能够通过自己的根，不损害植物的污染物。 These plants either convert the pollutants into forms that they can use, or disperse the pollutants into the air through transpiration.这些植物转换成表格，他们可以使用的污染物，或分散成通过蒸腾的空气污染物。 If the pollutants are particularly dangerous, technicians can move the plants to a location where the plants and pollutants can be disposed of safely.如果污染物是特别危险的，技术人员可以将植物到植物和污染物安全处置的位置。

Dilution稀释

• Many pollutants are dangerous only in high concentrations, such as with plant nutrients.许多污染物是危险的，只有在高浓度的植物营养素，如。 Sometimes, soil pollution results from heavy metals sinking deeper into the soil, where they reach concentration levels that are higher than the safe levels.有时，沉入土壤中重金属土壤污染的结果更深入，他们在那里达到的浓度水平，高于安全水平。 Therefore, technicians mix the soil to dilute the soil pollutant concentrations.因此，技术人员将土壤稀释土壤中的污染物浓度。 However, technicians and farmers might need to repeat this process periodically to keep the contaminants diluted.然而，技术人员和农民可能需要重复这一过程，定期保持污染物稀释。

Chemical Remediation化学修复

• Chemical remediation techniques either dilute the harmful chemicals so that they are no longer harmful or convert the pollutants into forms that plants cannot take up through their roots.化学修复技术可以稀释有害的化学物质，使他们不再是有害的或转换成形式污染物的植物无法通过自己的根。 This method of soil treatment helps gardeners and farmers who are struggling to grow plants in contaminated soil.这种土壤处理的方法帮助那些挣扎在受污染的土壤中生长的植物的园丁和农民。

Soil Washing土壤洗涤

• Sometimes, technicians simply wash the soil.有时，技术人员只需洗净泥土。 Some contaminants either break down or are washed away by water.一些污染物分解或由水冲刷。 If the contaminants are smaller than the soil particles, technicians can wash the soil through filters that trap the soil while removing the pollutants.如果污染物超过土壤颗粒较小，技术人员可以通过过滤器陷阱的土壤，而去除污染物洗的土壤。