After more than 10 years of research and application, system of contaminated soil remediation technology including physical / chemical remediation, bioremediation repair and remediation, has been formed, and accumulated the application experience of repairing comprehensive engineering and soil pollution, the new research hotspot of the in situ bioremediation of contaminated soil and based on monitoring the natural repair technology appeared. The future research of polluted soil treatment technology is developed from the following aspects:

1.To develop green soil bioremediation technology

Soil bioremediation is more stringent for environmental requirements, such as soil properties, temperature, pH value, and nutritional conditions. This needs to be constantly adjusted in the process of practice and ultimately to find the best condition. For the hyperconcentration plants, they need be collected at the appropriate time and take reasonable treatment and disposal methods. Not only can avoid second pollution, but also can improve the economic benefit. Therefore, bioremediation, especially the technique of phytoremediation, will become the mainstream in future remediation technologies.

2.Development of integrated and hybrid soil comprehensive remediation technology

Such as the combined remediation of plant and microbes, the integrated redox method, the rinsing method and the reaction wall technology, the new in situ composite repair technology, and the combination of phytoremediation and physical and chemical remediation.

3.Improving existing technology and attaching importance to theoretical research

For phytoremediation, more and better heavy metals can be enriched by finding, screening and domesticating them. Using genetic engineering technology, the tolerance genes of hyperconcentration plants are transplanted into plants with large biomass and rapid growth, so that the plant restoration will be industrialized.
For microbioremediation, gene engineering bacteria with strong resistance and strong decomposing ability can be developed through gene recombination. At the same time, we should further study the mechanism of bioremediation technology, further study the mechanism of plant microbial interaction, or understand the principles of tolerance genes and heavy metals accumulation. It will help to develop new plant varieties and improve the efficiency of the phytoremediation system. Before the introduction of hyperconcentration plants, it is also necessary to fully demonstrate whether it will cause the negative effects of biological invasion.

PARFECT soil stabilization equipment can transfer the soil binder through the air compressor to the mixing head which is mounted on the excavator, and mix with the soil to improve the strength of the foundation.

Learn more about in situ soil stabilization

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