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Wet land filler of immobilized microorganism and preparation method thereof

A technology for immobilizing microorganisms and wetlands, applied in chemical instruments and methods, sustainable biological treatment, biological water/sewage treatment, etc., can solve the problems of long biofilm growth cycle, biofilm bacterial contamination, specificity and efficiency of pollutant removal Low-level problems, to achieve the effect of strong phosphorus removal effect

Inactive Publication Date: 2010-03-17
周芳蓉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the growth cycle of the biofilm on the filler is long, the bacteria on the biofilm are relatively complex, and the specificity and efficiency of removing pollutants are low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh 1kg of cement, 4kg of limestone and 0.2kg of lime according to the weight ratio of cement: limestone: lime=1:4:0.2, mix the above materials, add water and stir to form a slurry; add 0.274kg quick-setting agent aluminum sulfate to the slurry and stir evenly ;Quickly add solid strain capsules, stir well; extrude Φ35 strips from extruder, cut into 35mm pieces by cutting machine. After stacking for three days, completely dry to obtain the product of the present invention.

Embodiment 2

[0022] Weigh 1 kg of cement, 6 kg of limestone and 0.5 kg of lime according to the weight ratio of cement: limestone: lime = 1: 6: 0.5, mix the above materials, add water and stir to form a slurry; add 0.76 kg of quick-setting agent aluminum sulfate to the slurry and stir evenly ;Quickly add solid strain capsules, stir well; extrude Φ35 strips from extruder, cut into 35mm pieces by cutting machine. After stacking for three days, completely dry to obtain the product of the present invention.

Embodiment 3

[0024] Weigh 1kg of cement, 8kg of limestone and 0.8kg of lime according to the weight ratio of cement:limestone:lime=1:8:0.8, mix the above materials, add water and stir to form a slurry; add 2.45kg quick-setting agent aluminum sulfate to the slurry and stir evenly ;Quickly add solid strain capsules, stir well; extrude Φ35 strips from extruder, cut into 35mm pieces by cutting machine. After stacking for three days, completely dry to obtain the product of the present invention.

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PUM

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Abstract

The invention discloses a wet land filler of immobilized microorganism, which is composed of cement, limestone, lime, accelerators, water and solid strain capsules, wherein the cement : limestone : lime is equal to 1:4-8:0.2-0.8, and the accelerators account for 0.05-0.2 percent of total weight. The invention aims at overcoming the disadvantages of the prior art and provides a wet land filler of an immobilized microorganism, which has rapid and high-efficiency microorganism culture; in addition, the invention provides a method for preparing the wet land filler of high-efficiency immobilized microorganism, comprising the following steps: a. the cement, calcium carbonate powder and the lime are mixed by weight ratio, water is added in the mixture and is stirred; b. the accelerators are addedin the slurry and is stirred evenly; c. the solid strain capsules are added rapidly, and the mixture is evenly stirred; d. an extrusion machine is adopted to carry out extrusion molding, and productsare obtained after being dried.

Description

technical field [0001] The invention relates to a wetland filler, in particular to a wetland filler with immobilized microorganisms; the invention also relates to a method for preparing the wetland filler. Background technique [0002] The use of high-efficiency vertical flow artificial wetland technology for sewage treatment has been widely used. There are many types of wetland fillers currently used. Generally, wetland fillers are mainly sand and gravel. The main disadvantages of sand and gravel-based wetland fillers The artificial wetland has a large area, and the wetland filler and the aquatic and wet plants implanted on the wetland filler have low removal efficiency for pollutants in the sewage, especially the removal rate of phosphorus is low, and the microbial biomass on the wetland filler carrier is small. Into the disadvantages of low efficiency of phosphorus uptake by the roots of aquatic and wet plants. Moreover, these fillers are first put into the wetland and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/10C02F3/34C02F3/32
CPCY02W10/10
Inventor 周芳蓉
Owner 周芳蓉