Preparation method of microorganism desilting agent

A technology of dredging agent and microorganism, which is applied in the field of preparation of microbial dredging agent, can solve the problems that it is difficult to play the role of sediment dredging and water purification, it is easy to lose with the water flow, and the microbial dredging agent cannot sink to the bottom, etc., to achieve high Physical and chemical adsorption performance, improvement of stability performance, effect of improvement of adsorption performance

Inactive Publication Date: 2018-11-16
FOSHAN WANYANG BIOLOGICAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention is that the microorganisms commonly used in common microbial desilting agents are all aerobic bacteria, which makes it difficult for microorganisms to purify the bacteria in environments with little or almost no dissolved oxygen such as underwater sludge. Bottom mud dredging and water purification, and the common microbial dredging agent can not sink to the bottom, and is easy to lose with the water flow, so a preparation method of microbial dredging agent is provided

Method used

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  • Preparation method of microorganism desilting agent

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example 1

[0026]Mix sodium metaaluminate, urea and deionized water at a mass ratio of 1:2:10 and put them into a beaker to obtain a mixed solution. Heat the mixed solution to 70°C, and then add 25% of the mixed solution dropwise to the beaker. Orthosilicic acid, heat preservation and stirring for 2 hours to obtain a prefabricated solution; mix the above prefabricated solution with sodium hexametaphosphate at a mass ratio of 15:1 and move it into a high-pressure hydrothermal kettle, and seal the high-pressure hydrothermal kettle under a pressure of 2.6MPa Heat up to 220°C, perform hydrothermal reaction for 20 hours, filter and separate the reaction filter residue after the hydrothermal reaction is completed, and obtain the modified zeolite after natural drying; mix the above-mentioned modified zeolite with calcium chloride and 30% by weight Mix the hydrogen peroxide solution in a mass ratio of 1:7:25 and put it into a beaker, stir and mix with a magnetic stirrer at a speed of 200r / min for...

example 2

[0028] Mix sodium metaaluminate, urea and deionized water at a mass ratio of 1:2:10 and put them into a beaker to obtain a mixed solution. Heat the mixed solution to 75°C, and then add 25% of the mixed solution dropwise to the beaker. Orthosilicic acid, heat preservation and stirring for 2 hours to obtain the prefabricated solution; mix the above prefabricated solution with sodium hexametaphosphate at a mass ratio of 15:1 and move it into a high-pressure hydrothermal kettle, and seal the high-pressure hydrothermal kettle under a pressure of 2.7MPa Heat up to 235°C, perform hydrothermal reaction for 22 hours, filter and separate to obtain the reaction filter residue after the hydrothermal reaction is completed, and obtain the modified zeolite after natural drying; mix the above-mentioned modified zeolite with calcium chloride and 30% of the supernatant The hydrogen peroxide solution was mixed according to the mass ratio of 1:7:25 and put into a beaker, stirred and mixed with a m...

example 3

[0030] Mix sodium metaaluminate, urea and deionized water at a mass ratio of 1:2:10 and put them into a beaker to obtain a mixed solution. Heat the mixed solution to 80°C, and then add 25% of the mixed solution dropwise to the beaker. Orthosilicic acid, heat preservation and stirring for 3 hours to obtain the prefabricated solution; mix the above prefabricated solution and sodium hexametaphosphate at a mass ratio of 15:1 and move it into a high-pressure hydrothermal kettle, and seal the high-pressure hydrothermal kettle under a pressure of 2.8MPa Heat up to 250°C, perform hydrothermal reaction for 24 hours, filter and separate to obtain the reaction filter residue after the hydrothermal reaction is completed, and obtain the modified zeolite after natural drying; mix the above-mentioned modified zeolite, calcium chloride and 30% supernatant Hydrogen oxide solution is mixed according to the mass ratio of 1:7:25 and put into a beaker, stirred and mixed with a magnetic stirrer at a...

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Abstract

The invention relates to a preparation method of a microorganism desilting agent and belongs to the technical field of preparation of microorganism preparations. The preparation method comprises the following steps: taking orthosiliconic acid as a silicon source; adding the silicon source into a mixed solution of urea and aluminum-source sodium metaaluminate to synthesize a silicon-aluminum zeolite molecular sieve; then mixing zeolite, calcium chloride and hydrogen peroxide; then coating with peach gum to prepare a self-made desilting carrier; then preparing a liquid culture solution; finally,mixing and immersing a fermentation solution and the self-made desilting carrier and immobilizing a microorganism on the carrier to prepare the microorganism desilting agent. In a hydrothermal reaction process, crystal lattice holes are generated so that the prepared zeolite has higher physical and chemical adsorption performance; after the desilting agent prepared by the invention is precipitated, the desilting agent is in contact with sludge and a calcium peroxide layer in the sludge is exposed; after calcium peroxide meets water in the sludge, the calcium peroxide is slowly slaked and oxygen is gradually release, so that the oxygen is filled into an oxygen-deficiency sludge environment and the desilting agent has a wide application prospect.

Description

technical field [0001] The invention relates to a preparation method of a microbial desilting agent, which belongs to the technical field of preparation of microbial preparations. Background technique [0002] With the rapid increase of urban population and the rapid development of society and economy, a large amount of untreated production wastewater and domestic sewage are discharged into the inner lake. Over the years, a thick layer of sediment is deposited on the riverbed and the bottom of the lake. This has led to serious pollution from both inside and outside the city, increasing eutrophication of water bodies, and declining water quality, which has greatly affected the ecological environment of the city and the living environment of residents. Contradictions such as river siltation and environmental problems have become increasingly prominent. How to dispose of river silt, find the most practical and effective solution, and realize the comprehensive utilization o...

Claims

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Application Information

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IPC IPC(8): C02F11/02C12N1/20C12R1/125C12R1/46C12R1/01
CPCC02F11/02C02F2103/007C12N1/20
Inventor 刘茂龙林茂梅陈帅
Owner FOSHAN WANYANG BIOLOGICAL TECH CO LTD
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