8results 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 invention relates to the field of gene engineering, in particular to application of a CSLF6 gene and / or coded protein to improvement of rice cadmium stress tolerance in rice breeding regulation. CSLF6 gene overexpression can be used for cultivating rice with improved cadmium stress tolerance and cadmium accumulation, higher-level growth of the rice is facilitated, and the rice can be used for repairing soil cadmium pollution and has excellent application value. The CSLF6 gene mutant can effectively reduce the accumulation of cadmium in rice grains.

The present invention belongs to the field of petroleum hydrocarbon pollution control, and specifically relates to a saline-alkali soil petroleum hydrocarbon pollution biological bacterial agent and a risk reduction method. The saline-alkali soil petroleum hydrocarbon pollution biological bacterial agent of the present invention comprises Pseudomonas aeruginosa Ya1, Halomonas elongatus ZQ1-3, petroleum hydrocarbon degrading bacteria-10 and Burkholderia AM20, the ratio of the number of live bacteria being 1: (1.0-2.5): (0.8-1.5): (0.5-1.3). The saline-alkali soil petroleum hydrocarbon pollution biological bacterial agent of the present invention contains a variety of degradation bacteria to exert a synergistic effect, has a more excellent degradation performance, significantly enhances the effect of repairing petroleum hydrocarbon pollution, and has a good market application prospect.

The invention belongs to the technical field of biology, and particularly relates to a complex microbial inoculant as well as a preparation method and application thereof. The complex microbial inoculant is prepared from the following raw materials in percentage by weight: 55%-65% of complex microbial freeze-dried powder, 25%-35% of a solid-phase carrier, 5%-8% of methylcellulose, 0.1%-0.2% of cyclodextrin, 4%-6% of lignin cyclic acid sodium and 1%-2% of monopotassium phosphate, totaling 100%, the compound bacterium freeze-dried powder is prepared from compound bacteria and a compound bacterium freeze-drying protective agent in a mass ratio of 1: (4-5); the compound bacteria are composed of four kinds of bacillus amyloliquefaciens (Bacillus amyloliquefaciens), and the bacillus amyloliquefaciens (Bacillus amyloliquefaciens) is selected from the group consisting of bacillus amyloliquefaciens (Bacillus amyloliquefaciens). After the complex microbial inoculant is applied to crops, indexes such as the plant height, the root length, the whole plant fresh quality and the whole plant dry quality of the crops are all improved, so that the complex microbial inoculant can be used for improving the yield and the quality of the crops.

The invention discloses a petroleum hydrocarbon degradation complex microbial inoculant as well as a preparation method and application thereof, and relates to the technical field of petroleum hydrocarbon degradation, the petroleum hydrocarbon degradation complex microbial inoculant is prepared by taking magnetic phosphorus-containing biochar as an immobilization carrier and loading composite petroleum hydrocarbon degradation bacteria on the surface of the magnetic phosphorus-containing biochar; wherein the magnetic phosphorus-containing biochar is prepared by firstly activating and pyrolyzing biomass shell powder and potassium feldspar powder through phytic acid to obtain phosphorus-containing biochar, and then coprecipitating the phosphorus-containing biochar and ferric salt; the composite petroleum hydrocarbon degrading bacteria are prepared by mixing bacterial suspensions of at least two of the following petroleum hydrocarbon degrading bacteria in an isovolumetric manner: pseudomonas, bacillus, micrococcus, lactobacillus, candida albicans or alcaligenes. The petroleum hydrocarbon degradation composite microbial agent provided by the invention has an excellent degradation effect on petroleum hydrocarbon, can be used in a heavy metal / petroleum hydrocarbon composite polluted soil environment, and has a good application effect.

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 invention relates to the technical field of ecological restoration. The invention provides a method for restoring heavy metal pollution of a riverway through aquatic plant composite planting. The method comprises the following steps: (1) spreading a microbial agent into a riverway water body to be restored for preliminary restoration; and (2) arranging a floating bed and planting floating-leaved plants in a midstream area of the preliminarily restored river water body, planting submerged plants in a downstream area, and then spreading a biological growth promoting agent. According to the technical scheme, different aquatic plants are planted in different areas, so that the adsorption effect of the corresponding aquatic plants on the heavy metals in the river channel is better exerted; the combined use of the microbial agent and the biological growth promoting agent not only can promote the growth of aquatic plants and beneficial microorganisms, but also can improve the absorption, transformation and degradation effects on heavy metals, enhance the remediation capability of plants on heavy metal pollution, and achieve the purpose of fully purifying water.

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.