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Slow-release carbon source filler and preparation method thereof

A slow-release carbon source and carbonized fiber technology, applied in the field of water treatment, can solve the problems of unsustainable supply of slow-release carbon source, wetland blockage, perishability, etc. Effect

Active Publication Date: 2020-07-03
江苏瑞杰特环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The materials for supplementing wetland carbon sources reported in the above-mentioned prior art all have the following disadvantages: they are perishable and cause wetland blockage; they cannot sustainably and permanently supply slow-release carbon sources

Method used

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  • Slow-release carbon source filler and preparation method thereof
  • Slow-release carbon source filler and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A slow-release carbon source filler, comprising the following components by weight: 25 parts of micro-carbonized fiber, 60 parts of polyethylene terephthalate, 9 parts of iron ore powder, 6 parts of carbon nanotubes, and 9 parts of diatomaceous earth , 5 parts of compatibilizer, 5 parts of lubricant.

[0021] The preparation method of the micro-carbonized fiber: crush sawdust, straw and reed according to the weight ratio of 1:1:1, put them into a screw extruder, and extrude at 200°C to obtain particles with a diameter greater than 10 mesh It is micro-carbonized fiber.

[0022] The preparation method of the above-mentioned slow-release carbon source filler comprises the following steps:

[0023] (1) Take microcarbonized fiber, polyethylene terephthalate, iron ore powder, carbon nanotube, diatomaceous earth, compatibilizer and lubricant by weighing ratio, join in the mixer and mix evenly ( The mixing temperature is 70°C, the rotating speed of the mixer is 100r / min, and ...

Embodiment 2

[0026] A slow-release carbon source filler, comprising the following components by weight: 35 parts of micro-carbonized fiber, 50 parts of polyethylene terephthalate, 7 parts of iron ore powder, 8 parts of carbon nanotubes, and 10 parts of diatomite , 9 parts of compatibilizer, 6 parts of lubricant.

[0027] The preparation method of the micro-carbonized fiber: After pulverizing the straw, put it into a screw extruder and extrude it at 160° C. to obtain particles with a diameter greater than 10 meshes, which are micro-carbonized fibers.

[0028] The preparation method of the above-mentioned slow-release carbon source filler comprises the following steps:

[0029] (1) Take microcarbonized fiber, polyethylene terephthalate, iron ore powder, carbon nanotube, diatomaceous earth, compatibilizer and lubricant by weighing ratio, join in the mixer and mix evenly ( The mixing temperature is 80°C, the rotating speed of the mixer is 150r / min, and the mixture is mixed for 15min) to obtai...

Embodiment 3

[0032] A slow-release carbon source filler, comprising the following components by weight: 50 parts of micro-carbonized fiber, 40 parts of polyethylene terephthalate, 6 parts of iron ore powder, 5 parts of carbon nanotubes, and 5 parts of diatomaceous earth , 8 parts of compatibilizer, 5 parts of lubricant.

[0033] The preparation method of the micro-carbonized fiber: crush the straw and reed according to the weight ratio of 1:1, put it into a screw extruder, and extrude it at 220°C to obtain particles with a diameter greater than 10 meshes, which is micro-carbonized fiber.

[0034] The preparation method of the above-mentioned slow-release carbon source filler comprises the following steps:

[0035] (1) Take microcarbonized fiber, polyethylene terephthalate, iron ore powder, carbon nanotube, diatomaceous earth, compatibilizer and lubricant by weighing ratio, join in the mixer and mix evenly ( The mixing temperature is 70°C, the rotating speed of the mixer is 100r / min, and ...

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Abstract

The invention relates to a slow-release carbon source filler which comprises the following components in parts by weight: 20-50 parts of micro-carbonized fibers, 40-60 parts of polyethylene glycol terephthalate, 10-15 parts of iron ore powder, 5-10 parts of carbon nanotubes, 5-10 parts of a diatomite, 1-10 parts of a compatilizer and 1-10 parts of a lubricant. The preparation method comprises thefollowing steps: weighing the raw materials according to a stoichiometric ratio, adding the materials into a mixer, uniformly mixing, adding the mixture into a double-screw extruder, heating, melting,extruding, blowing air at the extrusion end at 5-15L / L.min, controlling the diameter of an extrusion die hole to be 1-5cm, cooling the extruded material, and cutting into pieces with the length of 1-10cm, thereby obtaining the product. The slow-release carbon source filler can well solve the problem of insufficient wetland carbon source, can continuously and durably supply the carbon source, provides a carrier with huge specific surface area for microorganisms, has much higher nitrifying and denitrifying bacteria quantity than the traditional biological membrane, can be completely degraded, and is safe and environment-friendly.

Description

technical field [0001] The invention relates to a slow-release carbon source filler and a preparation method thereof, in particular to a slow-release carbon source filler suitable for sewage treatment and wetland construction and a preparation method thereof, belonging to the technical field of water treatment. Background technique [0002] At present, with the improvement of the effluent standard of urban sewage plants in my country, the treatment of black and odorous rivers, the treatment of domestic sewage in rural areas, the purification of aquaculture wastewater and the construction of landscapes, it is necessary to build supporting wetlands. The wetland purification system purifies water through plant absorption, microbial degradation, physical adsorption, chemical precipitation and other processes under the joint action of plants-soil (filler)-microbes. However, because the traditional wetland technology mostly uses soil and sand as the main filler layer, there are pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/30
CPCC02F3/32C02F3/302Y02W10/10
Inventor 韩硕
Owner 江苏瑞杰特环保科技有限公司