Stabilizing material for remediation of soil contaminated by heavy metals and preparation method thereof

A soil remediation and stabilization technology, applied in the field of soil remediation, can solve rare problems and achieve the effect of promoting remediation, improving the remediation effect, and improving the micro-ecological environment
CN110776919AInactive Publication Date: 2020-02-11JIANGXI PURUIFENG ECOLOGICAL TECH CO LTD
3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGXI PURUIFENG ECOLOGICAL TECH CO LTD
Publication Date
2020-02-11
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention provides a stabilizing material for remediation of soil contaminated by heavy metals and a preparation method thereof. The stabilizing material comprises the following raw materials in parts by weight: 70-90 parts of bagasse, 5-8 parts of expanded graphite, 15-26 parts of fly ash, 3-7 parts of bentonite, 3-6 parts of humic acid and 1.5-3 parts of a natural polymeric flocculant. The preparation method comprises the following steps: (1) crushing and sieving bagasse to obtain bagasse powder, and putting the bagasse powder into a carbonization furnace to prepare semi-carbonized bagasse powder; and (2) uniformly mixing the semi-carbonized bagasse powder, expanded graphite, fly ash, bentonite, humic acid and the natural polymer flocculant in a stirring tank to obtain the stabilizing material. According to the invention, the bagasse is used as a main raw material, so the waste can be turned into the valuable; and the bagasse is matched with other substances, so the prepared stabilizing material has a very good remediation effect on soil contaminated by heavy metals, effectively reduces the leaching concentration of heavy metals in the soil, and effectively improves the physicochemical properties of soil and a micro-ecological environment.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of soil remediation, in particular to a stabilized material for heavy metal soil remediation and a preparation method thereof. Background technique

[0002] Soil is one of the most important natural resources on which all human beings depend for survival, and it is also an important part of the ecological environment system. With the rapid development of the industrial and agricultural economy, the problem of heavy metal pollution in the country's soil has become more and more prominent. Industries that carry a large amount of heavy metal ions, discharge of domestic sewage into rivers, cultivated land, excessive use of agricultural fertilizers, herbicides, etc., disorderly mining of metal mines, smelting of ores, random dumping of industrial solid waste, medical waste and domestic garbage, these All are the chief culprits of the status quo of soil heavy metal pollution. Heavy metals are not easy to be leac...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More