36results about How to "Toxic mitigation" patented technology

The invention discloses a method for strengthening Aspergillus flavus TL-F3 to restore heavy metal-contaminated soil with ryegrass. The method comprises combining Aspergillus flavus TL-F3 and ryegrass to repair heavy-metal composite polluted soil. The present invention finds for the first time that Aspergillus flavus TL‑F3 has a growth-promoting effect on plants, and the concentrations of Aspergillus flavus TL‑F3 at Pb(II), Zn(II), Cu(II) and Cd(II) are respectively 50, 200, 300 and 5mg / L still has a good growth-promoting effect. Inoculation of Aspergillus flavus TL‑F3 significantly promoted the growth of ryegrass, increased the enrichment efficiency of ryegrass to Pb(II), Zn(II), Cu(II) and Cd(II), and reduced the concentration of heavy metals in soil. The invention provides a new method for remediation of heavy metal compound polluted soil.

The invention discloses an adsorbent for mycotoxin in a feed and a preparation method thereof, aiming at providing an aluminosilicate adsorbent for adsorbing mycotoxin in a mouldy animal feed. The adsorbent is prepared by using medical stone powder as a raw material, immersing the medical stone powder in a certain ratio of antibacterial material quaternary ammonium salt-myristyl trimethyl ammonium bromide, stirring, washing, filtering, drying, and grinding into powder. According to the invention, the processed modified medical stone powder has an increased internal surface area and an enhanced adsorption capacity; by adding the modified medical stone powder in the feed, the animal immunity function and production performance can be raised, and the toxic action of mycotoxin in the feed to animals can be alleviated.

The invention provides a blocking agent which is highly targeted to wheat grains and can efficiently block the absorption and translocation of heavy metal cadmium in wheat grains, and its active ingredient is EDTA‑2Na. The present invention also provides a method for using the foliar barrier agent. It is sprayed on cadmium-contaminated wheat leaves during the period of vigorous wheat growth and development, which can effectively and significantly block the absorption and transport of heavy metal cadmium in wheat grains, and the application frequency and application amount are small. , has no toxic side effects, does not affect the normal growth and development of wheat, is safe and non-toxic to the human body, and can effectively inhibit the absorption and transport of heavy metal cadmium by wheat grains, and reduce the accumulation of cadmium in wheat grains. The invention also provides a method for researching the blocking mechanism of the heavy metal Cd of the foliar blocking agent, and a new application of EDTA-2Na, which provides a good solution to the problem of cadmium pollution of wheat grains.

The invention provides a hydroponic method using exogenous ferric salt to alleviate toxic effects of cadmium to tomatoes and application of the exogenous ferric salt. The method comprises the following steps that tomato seeds are evenly placed in a tray containing vermiculite after being disinfected with a sodium hypochlorite solution; after the tomato seeds grow to the two-leaf one-core period, aFe solution with the concentration of 200-300 umol.L<-1> is added into the hydroponic solution for hydroponic treatment for three weeks. According to the method, the accumulation amount of Cd in thetomatoes under Cd stress is effectively reduced by 46-62.1%. The method improves the quality of the tomatoes.

The invention discloses a compound Chinese herbal medicinal preparation for inhibiting the growth of cyanobacteria and a preparation method thereof. Traditional Chinese medicine raw materials: Astragalus, Radix Radix, Phellodendron, and Gardenia; astragalus, Radix Radix, Phellodendron, and Gardenia are crushed, extracted, decocted, and the filtrate is collected by filtration, and then concentrated to obtain extracts of Astragalus, Radix Radix, Phellodendron, and Gardenia respectively ; A compound Chinese herbal medicine preparation for inhibiting the growth of blue-green algae, in terms of mass fraction, including 10-15% of astragalus extract, 8-13% of Radix isatidis extract, 3-8% of Cortex Phellodendri extract, 3-8% of gardenia extract, 56% of water -76%. The invention proves through experiments that it can kill cyanobacteria, reduce the density of cyanobacteria cells, and effectively prevent and control cyanobacteria blooms. The invention can effectively solve the water bloom caused by the explosive growth of cyanobacteria, alleviate the poisonous effect of algae toxins on cultured animals, improve the immunity of animals, and improve the survival rate of cultured animals. Therefore, it has broad application prospects.

The invention discloses a method for reducing cadmium content in vegetables planted in cadmium-contaminated soil, which comprises the following steps: spreading a layer of matrix on the surface of cadmium-contaminated soil, planting vegetables, and keeping the water holding capacity of the soil at 60-70%; Spray the Azospirillum brasilense bacterial solution with the preservation number CGMCC 1.10379 on the vegetable rhizosphere soil. The invention can effectively slow down the toxicity of soil Cd to crops, increase the yield of vegetables, reduce the content of Cd in crops, and prevent Cd from entering the food chain with crops to endanger human health.