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Method for recovery of vegetation in garbage landfill field by using municipal sludge modified covering soil

A landfill and municipal sludge technology, applied in the field of environmental ecological protection, can solve the problems of slow vegetation recovery in landfill, air and water pollution, and unused and exposed land, so as to shorten the process of vegetation restoration and save land resources, the effect of speeding up recovery

Inactive Publication Date: 2006-12-27
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of slow vegetation recovery in landfills, large areas of land left unused and exposed, serious ecological damage to the landscape, and pollution to the atmosphere and water environment, and to provide a method of using urban sludge to improve soil recovery. Ways to Vegetate Landfills

Method used

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Embodiment

[0015] The sludge from the urban sewage plant is used as the soil improvement agent of the landfill site. After adding mushroom slag to the sludge, it is evenly mixed with the covering soil to obtain the improved covering soil. The weight percentage of mushroom residue in the sludge is 5%, and mushroom slag is added. The percentage by weight of slag sludge in the improved covering soil is 10%. Cover the surface of the landfill with the improved covering soil. The thickness of the improved covering covering the surface of the landfill is 20cm. No compaction is required for leveling. Then, according to the adapted planting mode of "tree + shrub + herb", first Sprinkle teff and tall fescue grass seeds, and then introduce tolerant and suitable plants such as slash pine, coral tree, Photinia red leaf, and Bauhinia, according to (0.75×0.8)m 2 Adaptive planting and landscape design are carried out. The upper plants are slash pine and coral tree, the middle are Photinia and Bauhinia, ...

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Abstract

Disclosed is a method for vegetation recovery in garbage burying field using covering soil modified from urban sludge, comprising following steps: using the sludge of urban sewage factory as covering soil modifier for garbage burying field, adding amendment into the sludge, and mixing them uniformly with the covering soil to produce modified covering soil; covering the modified covering soil onto the surface of the covering soil in garbage burying field, smoothing without compaction, planting resistant plants adaptive to the garbage burying field environment. The method disclosed can accelerating vegetation recovery in garbage burying field obviously, and shorten vegetation recovery course; solve the problem of large area of dilapidated ground in garbage burying field, tight covering soil resource, and environmental contamination and landscape ecology sever damage, so as to economize in large amounts of ground resource and bring appreciable economic profit.

Description

technical field [0001] The invention relates to a method for restoring vegetation in a garbage landfill, in particular to a method for restoring vegetation in a garbage landfill by using urban sludge to improve covering soil, and belongs to the technical field of environmental ecological protection. Background technique [0002] With the improvement of urbanization and residents' living consumption level, the output of municipal solid waste is increasing. There are 688 cities in my country. The speed is increasing, the stock of urban domestic waste has reached 60 billion tons, and more than 200 cities have been surrounded by garbage. The pollution of urban domestic waste has become one of the main factors of environmental pollution. As a final treatment method, the sanitary landfill method has been widely used due to its simple process, low investment, large processing capacity and low operating cost. It is currently the most commonly used method for harmless treatment of mun...

Claims

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Application Information

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IPC IPC(8): B09C1/00
Inventor 王云龙吴伟祥花莉陈英旭
Owner ZHEJIANG UNIV
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