Modified polyurethane suspended filler and preparation method and application thereof

A technology of suspended filler and polyurethane, which is applied in the direction of chemical instruments and methods, sustainable biological treatment, water/sludge/sewage treatment, etc., can solve problems such as direct solution, non-sustainability, secondary pollution, etc., and achieve Improve the removal rate, increase the effective biomass and functionality, and achieve the effect of purification

Active Publication Date: 2015-10-07
HEFEI JIKUN ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is usually not sustainable, does not directly solve the problem fundamentally, and is easy to cause secondary pollution, so it is largely an auxiliary treatment method

Method used

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  • Modified polyurethane suspended filler and preparation method and application thereof
  • Modified polyurethane suspended filler and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Take 80 parts of poly 3-hydroxybutyrate-4-hydroxybutyrate, 10 parts of activated carbon, dissolve in 8 parts of water-soluble polyurethane solution; take 80 parts of ordinary polyurethane filler, soak it in water-soluble polyurethane solution, artificially Knead for 1 hour to obtain a polyurethane suspension filler loaded with polyhydroxyalkanoate, activated carbon and inorganic metal salt; take out the polyurethane suspension filler loaded with polyhydroxyalkanoate, activated carbon and inorganic metal salt from the water-soluble polyurethane solution, and use a small The air blower realizes the preliminary drying of the suspended filler; it is further placed in an oven at about 80°C, and the preparation of the filler is completed after the suspended filler is completely dried.

[0033] Load an appropriate amount of the suspended filler into a 2.2L beaker, add 2L of distribution water consisting of 100mg / L nitrate nitrogen and 20mg / L phosphate, and add an appropriate am...

Embodiment 2

[0035] Take 10 parts of polyhydroxybutyrate valerate (PHBV), 80 parts of activated carbon, and dissolve in 6 parts of water-soluble polyurethane solution; take 60 parts of ordinary polyurethane filler, soak it in water-soluble polyurethane solution, and manually knead it for 1 hour to prepare The polyurethane suspension filler of loading polyhydroxyalkanoate, activated carbon and inorganic metal salt is obtained; the polyurethane suspension filler of loading polyhydroxyalkanoate, activated carbon and inorganic metal salt is taken out from water-soluble polyurethane solution, and utilizes small blower to realize suspension filling Preliminary drying; further put into an oven at about 80°C, and the preparation of the filler will be completed after the suspended filler is completely dried.

[0036] Load an appropriate amount of the suspended filler into a 2.2L beaker, add 2L of domestic sewage in a school residential area, in which the COD in the domestic sewage is 200mg / L, the am...

Embodiment 3

[0038] Take 45 parts of 3-hydroxybutyric acid 3-hydroxyhexanoate and 45 parts of activated carbon, and dissolve them in 7 parts of water-soluble polyurethane solution; take 70 parts of ordinary polyurethane filler, soak them in water-soluble polyurethane solution, and manually knead for 1 hour, Prepare the polyurethane suspension filler loaded with polyhydroxyalkanoate, activated carbon and inorganic metal salt; take out the polyurethane suspension filler loaded with polyhydroxyalkanoate, activated carbon and inorganic metal salt from the water-soluble polyurethane solution, and use a small hair dryer to achieve suspension Preliminary drying of the filler; further put it into an oven at about 80°C, and complete the preparation of the filler after the suspended filler is completely dried. Put the above-mentioned suspended filler into a certain black and smelly closed pond. After 36 days, the black and smelly phenomenon of the closed pond basically disappeared, and some aquatic a...

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Abstract

The invention discloses modified polyurethane suspended filler which comprises, by weight, 10 parts to 80 parts of polyhydroxyalkanoate, 10 parts to 80 parts of activated carbon, 60 parts to 80 parts of polyurethane, 1 part to 10 parts of water-soluble polyurethane solutions, 0 part to 10 parts of bioactivator, 0 part to 1 part of inorganic metal salt, 0 part to 20 parts of organic high-molecular polymer and 0 part to 10 parts of inorganic flocculate. A preparation method of the modified polyurethane suspended filler includes the steps of taking the 10 parts to 80 parts of polyhydroxyalkanoate, the 10 parts to 80 parts of activated carbon, the 0 part to 10 parts of bioactivator, the 0 part to 1 part of inorganic metal salt, the 0 part to 20 parts of organic high-molecular polymer and the 0 part to 10 parts of inorganic flocculate, dissolving the mixture in the 1 part to 10 parts of water-soluble polyurethane solutions, soaking the 60 parts to 80 parts of polyurethane in the solution to obtain the loaded polyurethane suspended filler, and conducting secondary drying after primary drying is conducted to obtain the modified polyurethane suspended filler. The modified polyurethane suspended filler has the advantages of being high in porosity and large in specific area.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and relates to a modified filler for sewage treatment. Background technique [0002] Eutrophication is an important manifestation of the current routine pollution of water bodies; eutrophication refers to the accumulation of a large number of nutrients such as nitrogen and phosphorus in water bodies. The balance between the capacity and the system is unstable, which eventually leads to the destruction of the aquatic ecosystem and the further aggravation of environmental problems. With the increasing use of environmental resources by human beings, especially the large-scale development of industrial and agricultural production, a large amount of domestic sewage containing nitrogen and phosphorus nutrients is discharged into nearby lakes, rivers and oceans, which increases the nutrient load of water bodies and causes pollution. Imbalances occur from time to time, and the hazards of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10C02F3/00
CPCY02W10/10
Inventor 柴晓利何厚波张力余毅坚许中硕邓雨晨徐怡婷武博然
Owner HEFEI JIKUN ENVIRONMENTAL PROTECTION TECH CO LTD
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