A kind of eutrophication water restoration agent and preparation method thereof

Abstract

The invention discloses a eutrophic water body restoration medicament and its preparation method and application. The medicament is composed of water, an oxygen release agent, biomass carbon powder, a composite bacterial agent, an alkali agent and a binding agent. The eutrophication water restoration agent of the invention has the advantages of high removal rate, low cost, environmental friendliness and the like.

Description

technical field [0001] The invention belongs to the field of water environment restoration, and in particular relates to a eutrophic water body treatment agent, in particular to a eutrophic water body restoration agent and a preparation method thereof. Background technique [0002] With the rapid development of industry and agriculture, a large amount of industrial wastewater containing nitrogen and phosphorus, domestic sewage, and even untreated sewage are directly discharged into rivers, causing eutrophication in some rivers. The eutrophication of water body is caused by the excess of nutrients (such as nitrogen, phosphorus, etc.) in the water body, which leads to the excessive proliferation of algae, the reduction of dissolved oxygen content in the water body, the massive death of aquatic organisms, and the deterioration of water quality. The eutrophication of water not only leads to the destruction of the river ecosystem, but also affects people's production and life. Th...

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Problems solved by technology

[0004] Invention patent CN101591040A discloses a method for biological control of eutrophic water bloom pollution, which controls eutrophic water by spraying a short-term biodegradable natural plant algae inhibitor on the water body, but this method does not fundamentally solve the problem of water bloom pollution in the water body. The problem of excessive concentration of nitrogen and phosphorus nutrients, that is, after the biodegradation of the algicide, the eutrophication of the water body may reappear

[0005] Invention patent CN109592762A discloses a eutrophication water body treatment agent and its preparation method. It uses silicon carbide composite iron base, titanium dioxide waste residue-polylactic acid composite and ceramsite to make porous microspheres to absorb and flocculate organic matter. , phosphorus, nitrogen and other pollutants, and degrade pollutants through photocatalysis, but due to the poor light transmittance of eutrophic water body, the photocatalytic degradation effect is limited, and the filler after adsorption reaches saturation needs to be replaced, which will increase operating costs

[0006] Invention patent CN110002602A discloses a purifying agent for treating eutrophic water body and its preparation method, which mainly uses composite bacteria to degrade nitrogen and phosphorus elements in eutrophic water body, but due to the excessive reproduction of algae in eutrophic water body, it will consume There is a large amount of dissolved oxygen, so the compound strains added will be inhibited, which will affect the treatment effect of eutrophic water to a certain extent; in addition, the compound strains used in this method are not domesticated and expanded by indigenous microorganisms. species, there are problems with the adaptation of alien strains to the original environment and the potential environmental risks of water bodies being impacted by alien strains

[0007] Invention patent CN106946309A discloses a preparation method and application of oxygen slow-release and phosphorus-absorbing materials, which slowly release oxygen and remove phosphorus to the target water body, but this method does not take into account the transformation of nitrogen elements, nor does it take into account The use of the oxygen-releasing agent after releasing the oxygen and the change of the filler will easily lead to a rebound in the eutrophication of the water body

[0008] Invention patent CN108483555A discloses a multi-effect restoration material for the restoration of eutrophic water bodies and its preparation method and application, in which titanium dioxide and waste metal scraps are used. Titanium dioxide has neurotoxicity, and the migration and transformation of waste metal scraps may cause water damage. The heavy metals in the soil and sediment exceed the standard, so the material may have negative ecological effects

[0009] In short, the eutrophic water treatment methods or therapeutic agents in the prior art are often unsatisfactory in terms of treatment effect, prone to rebound, and there are many problems in terms of cost and environmental friendliness

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