Preparation and application of an immobilized straight cylindrical bioactive filler based on a network carrier
A bioactive and carrier technology, applied in the field of preparation and application of immobilized straight cylindrical bioactive fillers, can solve the problems of poor overall stability, bacterial loss, easy shedding of embedded bodies, etc., to increase strength, avoid the growth of miscellaneous bacteria, The effect of improving hydrophilicity
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example 1
[0029] 1. Preparation of Mesh Support
[0030] Polypropylene and other high molecular polymers are used as the main material, and the hydrophilic material polyvinyl alcohol (PVA) (preferably 5%) is added to make a straight cylindrical structural network with a diameter of 0.5-1.5cm and a height of 0.5-1.5cm The surface carrier has a square mesh shape and a wire diameter of 0.5 mm.
[0031] 2. Treatment of nitrifying bacteria
[0032] Using the residual sludge in the secondary sedimentation tank of the urban sewage plant as the bacterial source, the nitrifying bacteria suspension after screening and enrichment culture was centrifuged and concentrated to obtain 3.5×10 9 A / mL concentration of nitrifying bacteria.
[0033] 3. Acquisition of nitrifying bacteria embedding solution
[0034] Weigh 500g of polyvinyl alcohol, add 4000ml of ultrapure water and heat to 90°C to dissolve for 15min, take it out and stir evenly, then heat to 90°C and dissolve for 5min, take it out, stir ev...
example 2
[0043] 1. Preparation of Mesh Support
[0044] Polyethylene and other high molecular polymers are used as the main material, and the hydrophilic material polyvinyl alcohol (PVA) (content 6%) is added to make a straight cylindrical mesh carrier with a diameter of 1.0-2.0cm and a height of 1.0-2.0cm. The mesh shape is rhombus, and the wire diameter is 0.5mm.
[0045] 2. Treatment of nitrifying bacteria
[0046] Using the residual sludge in the secondary sedimentation tank of the urban sewage plant as the bacterial source, the nitrifying bacteria suspension after screening and enrichment culture was centrifuged and concentrated to obtain 3.5×10 9 A / mL concentration of nitrifying bacteria.
[0047] 3. Acquisition of nitrifying bacteria embedding solution
[0048] Weigh 5kg of polyvinyl alcohol, add 40L of ultrapure water and heat to 90°C to dissolve for 15min, take it out and stir evenly, then heat to 90°C and dissolve for 5min, take it out, stir evenly and cool to 30°C, mix 40L ...
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