3results about How to "Repair pollution" patented technology

The present application relates to a kind of parabacillus (Bacillus paralicheniformis) Bacillus paralicheniformis ) HMF14, the preservation number is CGMCC No.30480.The parabacillus HMF14 of the present application can resist salt and alkali, can simultaneously antagonize fusarium oxysporum, microdochium nivale var. avenae and xanthomonas campestris pv. tridii, also has toxic effect to pratylenchus penetrans and tetranychus cinnabarinus, can effectively prevent and treat wheat take-all disease and wheat black foot disease.

The present application belongs to the field of soil remediation, and particularly relates to a method for remediation of cadmium contaminated soil. The specific technical scheme is as follows: a soil remediation method comprises the following steps: before planting economic crops, applying sulfate-reducing bacteria to the soil to be remediated; after harvesting the economic crops, planting cadmium extraction crops in the soil to be remediated. The present application provides a water-flood rotation soil remediation method which can produce while remediation. On the one hand, the biological passivation can reduce the biological availability of cadmium in the soil, thereby reducing the stress of cadmium on plants and the absorption and accumulation of cadmium by plants; on the other hand, the biological technology can strengthen the ability of nightshade to extract cadmium, thereby extracting cadmium in farmland soil.

The present invention introduces a process for in-situ repair of organic nitrogen using a three-dimensional electrode, which includes: step S1, using a Peterson mud sampler to collect surface samples of river sediments and overlying water; step S2, preserving and treating the surface samples of the water area and the overlying water collected in step S1; step S3, stirring and mixing the surface samples of the water area and the overlying water in step S2; step S4, using a device for in-situ repair of organic nitrogen using a three-dimensional electrode to treat the mixture obtained in step S3; the device for in-situ repair of organic nitrogen using a three-dimensional electrode includes: an electrolytic cell, a DC power supply, an anode and a cathode; the positive electrode of the DC power supply is connected to the anode; the negative electrode of the DC power supply is connected to the cathode; the anode is located at the bottom of the electrolytic cell; the cathode is located on the water surface in the electrolytic cell; the anode material is an active electrode material; the anode is a three-dimensional porous structure. The present application can take into account both the complex environment and solid-liquid of river and lake sediments, and realize the in-situ removal of nitrogen elements.