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
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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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