Biochemical reagent and preparation method and application thereof

Abstract

The invention provides a biochemical reagent, which is prepared from solid phase spray and liquid phase spray by mixing spray reaction; the mass ratio of the solid phase spray to the liquid phase spray is 1:0.4-0.6; the solid phase spray is composite non-metallic minerals A (patent number 201310017703.0); the liquid phase spray comprises the following components in parts by weight: 5-15 parts of compound bacteria, 5-15 parts of nutritional agent and 0.05-0.15 parts of binder, wherein the compound bacteria are bacillus subtilis and photosynthetic bacteria of which the mass ratio is 1:4-6. The invention provides mixing spray reaction equipment used for preparing the biochemical reagent and a method for preparing the biochemical reagent by using the equipment. The biochemical reagent prepared according to the invention takes into account two aspects of microorganism loading capacity and substrate mass transfer resistance, low cost and long service life are realized, and thus, the biochemical reagent and the preparation method and application thereof can be used for treating polluted water bodies of a city and used for various water treatment engineering projects, and have a bright prospect.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a biological reagent, and also relates to a unique preparation method and application of the biological reagent. Background technique [0002] At present, water pollution has become one of the most important problems of urban environment in our country. Rivers and lakes across the country are generally polluted to varying degrees, especially in the middle and lower reaches of large and medium-sized cities. Urban rivers are an important part of my country's water environment. Due to the discharge of industrial wastewater and urban domestic sewage, urban rivers are seriously polluted and eutrophication is common. According to statistics, by the beginning of the 20th century, there was almost no complete natural river in the world, and the severe damage and degradation of urban rivers has been recognized as a global ecological environment problem. It can be seen that the...

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Problems solved by technology

The physical method often treats the symptoms but not the root cause, and the aeration and reoxygenation technology and the sediment dredging technology all have the disadvantage of large investment, and do not have the ability to control pollution on a large scale, and the final treatment of the polluted sediment removed in the sediment dredging is also a problem. It is a difficult problem; the chemical method mainly uses various chemical agents, such as adding chemical agents to kill algae, adding iron salts, etc. to promote the precipitation of phosphorus (chemical phosphorus fixation), etc. Although chemical methods can temporarily improve water quality, they will cause Secondary pollution; Biological method is a main body repair technology with good development prospects. It has low treatment cost, no impact on the environment, and can degrade pollution to the maximum extent. Difficult to promote technology

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