Parfect

In recent years, more and more soil stabilized projects in China have been growing rapidly, and have become the leading technology. Engineering amount from hundreds of cubic meters to several million cubic meters of soil, soil stabilization technology is not only applied in the remediation of contaminated soil, but also has become an important technology for sediment treatment of river pollution. Soil stabilization technology has been applied to heavy metal contaminated soil and sediment, such as Hg, Pb, CD and as, and is applied in the sediments contaminated by PAHs and pesticides. The technology of chemical oxidation and stabilization combined to repair organic polluted river sediment has also been applied. The stabilized soil and sediment are used in landfill disposal, site barrier and used as subgrade material. At present, most of the soil stabilization projects in China are implemented by stabilizing technology. There are few works on solidification technology, which is in sha...

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 avoi...

The dumping of silt directly into the sea and landfill has shown its drawbacks. Under the condition that the content of heavy metals in the current sludge has not been effectively controlled, it is very easy to cause two pollution. As a new way of sludge treatment, the energy utilization of silt has not been dabbled in China. In a lot of silt treatment, the resource utilization of the building materials, represented by the silt made sintered bricks, is the best way out. Firstly is the demand for raw materials of building materials industry is very large, a lot of silt can timely disposal; Secondly is that many brick enterprises are facing the dilemma that no soil can be dug up, the original of fixed assets wasted, a lot of silt is the ample supply of its ammunition, to ensure the maximum utilization of resources, social and economic benefits; Thirdly, sludge can be calcined at low temperature. It can become a building material with high value and good energy saving effect, and the toxi...