Method for remedying heavy metals in domestic waste leakage solution

Abstract

The invention discloses a method for remedying heavy metals in domestic waste leakage solution, which comprises the following steps: sowing lawn plants on a plastic net based on 20-40g / square meter and culturing the lawn plants by irrigating Hoagland nutrient solution; after the lawn plants are cultured for 30 days, pouring the nutrient solution out completely, transplanting the lawn plants to the domestic waste leakage solution containing EDTA and continuing soilless culture on the lawn plants until germination; after the lawn plants are processed in the domestic waste leakage solution for 7-30 days, harvesting Lolium perenne L or Festuca arundinacea L and determining the contents of the heavy metals in the domestic waste leakage solution, on the overground parts and in the root systems of the lawn plants, thereby achieving the remediation effects of the lawn plants on the heavy metals in the domestic waste leakage solution. The technical method of the invention can effectively reduce the contents of such heavy metals as Pb, Cu, Zn, Cd, Cr and Ni in the leakage solution and features simple technical operation process, obvious economic and environmental benefits and broad application prospect.

Description

A method for remediating heavy metals in domestic waste seepage technical field The invention belongs to the technical field of environmental protection and relates to a technical method for urban domestic garbage pollution control. More specifically, it is a method for remediating heavy metals in domestic waste seepage. Background technique With the advancement of urbanization in my country, the problem of municipal solid waste has become increasingly prominent and the development trend is not optimistic. For a long time, most cities in my country have used open-air stacking, natural ditch filling and pit filling to deal with municipal solid waste. The harmful components in the waste have caused serious harm to the atmosphere, water bodies, soil, etc., affecting the urban ecological environment and harming the environment. The health of the people has also had a negative impact on the global ecological environment, making the problem of garbage disposal a hot and difficul...

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Problems solved by technology

It can be seen that in order to reduce the risk of secondary pollution of groundwater and deep soil by leaching treatment, it is necessary to effectively remove heavy metals in domestic waste seepage, which is a very valuable technology, but there is still no information about this technology. No reports

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