Suspension biological activated carbon particle vector and preparation method thereof

A technology of biological activated carbon and activated carbon, which is applied in the fields of environmental protection and water treatment, can solve the problems of long biofilm formation time, large particle ratio, unstable treatment effect, etc., and achieves good combination of activated carbon and microorganisms, and the preparation method is simple and easy to handle. stable effect

Inactive Publication Date: 2013-01-16
苏州康瑞环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] When the concentration of pollutants in the treated water is relatively low, such as treating river water, lake water, etc., the formation time of biofilm is relatively long and it is easy to fall off, resulting in unstable treatment effect
Moreover, there are also shortcomings such as that the effect of the combination of activated carbon and microorganisms has not been fully exerted, the specific gravity of the particles is relatively large, and the power required to reach the suspended state is relatively large.

Method used

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  • Suspension biological activated carbon particle vector and preparation method thereof
  • Suspension biological activated carbon particle vector and preparation method thereof
  • Suspension biological activated carbon particle vector and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] see figure 2 , image 3 As shown, a suspension-type bioactive carbon particle carrier is a cube particle with a side length of 2-5 mm and a specific gravity of 1.02-1.08. The cube particle includes: microbial cells, powdered activated carbon and water-based polyurethane gel Body; the microbial cell is measured by MLVSS concentration, and its quantity is 2000-30000mg / L; the concentration of the powdered activated carbon is measured by the mass percentage of the cube particles, and its quantity is 1-8%; the aqueous The concentration of the polyurethane gel raw material prepolymer is measured by the mass percentage of the cube particles, and its quantity is 6-12%.

[0037] Further, the powder particle size of the bamboo powdered activated carbon is 10-150 μm.

Embodiment 2

[0039] see figure 1 Shown, a kind of method for preparing suspension type biological activated carbon granular carrier, it, comprises the following steps:

[0040] Step 1) adding tap water to the concentrated solution of microorganisms to form microorganisms with a concentration of microorganisms of 2000-30000mg / L;

[0041] Step 2) adding powdered activated carbon with a mass percentage of 3-8% to the microbial cells, and mixing evenly to obtain a microbial activated carbon composite particle liquid;

[0042] Step 3) adding a water-based polyurethane gel raw material prepolymer with a mass percentage of 6-12% in the microbial activated carbon composite particle liquid, and mixing evenly to obtain a microbial activated carbon mixed liquid;

[0043] Step 4) adding a polymerization initiator to the mixed liquid of the microbial activated carbon to carry out a polymerization reaction to obtain a jelly-like or jelly-like hydrosol solid base;

[0044] Step 5) Mechanically cutting ...

Embodiment 3

[0050] According to the method of embodiment 2, the suspension type bioactive carbon particle carrier that microorganisms are made with ammonia nitrogen nitrifying bacteria, the SEM photo after drying is as follows Figure 4 As shown, the SEM photo of the ammonia nitrogen nitrifying bacteria microbial cell contained therein is as follows Figure 5 shown.

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Abstract

The invention discloses a suspension biological activated carbon particle vector which is a cube particle with side length of 2-5 mm and specific gravity of 1.02-1.08. The cube particle comprises microbial thallus, bamboo powdery activated carbon and a waterborne polyurethane gel, wherein the quantity of the microbial thallus is 2000-3000 mg / L measured by MLVSS concentration; the concentration of the bamboo powdery activated carbon is 1-8% that of the mass percentage of the cube particle; the concentration of the prepolymer of the waterborne polyurethane gel is 6-12% that of the mass percentage of the cube particle. The suspension biological activated carbon particle vector can reach good effect for removing ammonia nitrogen-oriented pollutants from water.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and water treatment, and relates to suspended particle carriers containing microorganisms or bacteria used in landscape water bodies, aquaculture water bodies, ornamental fish water bodies, waterworks, sewage treatment plants and factories, etc., for water treatment or water purification treatment, specifically The invention relates to a suspended biological activated carbon particle carrier and a preparation method thereof. Background technique [0002] Biological and activated carbon are commonly used materials in the field of water treatment. [0003] The current "biological activated carbon treatment technology" is to fill the granular activated carbon into the water treatment device, and then let the microorganisms grow on the surface of the granular activated carbon to form the biological activated carbon treatment technology. The characteristic of this technology is that m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
Inventor 张振家
Owner 苏州康瑞环境科技有限公司
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