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Preparation method of sustained-release flocculation filter material

A technology of flocculation filtration and sustained release, applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, water/sewage treatment, etc., can solve problems such as restricted use, secondary pollution, residue, etc., to increase the use time, High efficiency and wide application range

Inactive Publication Date: 2019-02-15
XIAMEN BAILIN WATER PURIFICATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The use of flocculants to treat domestic sewage Surfactant is a common treatment method, but flocculants mostly exist in powder, and when used for water treatment and purification, they will be quickly dissolved and can form insoluble solubility with surfactants dissolved in the water phase Precipitation, while inevitably remaining in the water, causing secondary pollution
Therefore, it is necessary to add dosing equipment and pipeline connection, but it increases the cost of use and limits the use

Method used

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  • Preparation method of sustained-release flocculation filter material
  • Preparation method of sustained-release flocculation filter material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method of slow-release flocculation filter material, comprising the following steps:

[0022] Step 1: Mixing: Mix 50-90% flocculant, 5-35% polymer binder, 5-15% The polycaprolactone and 0.5-2% of the release agent are mixed and stirred evenly to obtain a mixture;

[0023] Step 2: Sintering: Put the mixture obtained in Step 1 into a molding mold, and make the mixture evenly filled in the mold, then put the mold into a sintering furnace, and sinter the mold at a temperature of 120-300°C, sintering The time is 0.5-5 hours;

[0024] Step 3: demoulding and forming: after the mixture sintered in step 2 is cooled, it is taken out from the sintering furnace, and the mold is opened to obtain a slow-release flocculation filter material.

[0025] Specifically, in the first step, the flocculant, polymer binder, polycaprolactone and polyethylene wax are stirred evenly to prevent the slow-release flocculation filter material from being poorly filtered due to uneven st...

Embodiment 2

[0033] Step 1: Mixing: under the condition that the temperature is lower than 40°C and the humidity is lower than 55%RH, the percentage by weight is 70% of flocculant, 20% of polymer binder, 9% of polycaprolactone and release agent 1%

[0034] Mix and stir to obtain a mixture;

[0035] Step 2: Sintering: Put the mixture obtained in Step 1 into a molding mold, and make the mixture evenly filled in the mold, then put the mold into a sintering furnace, and sinter the mold at a temperature of 120-300°C, sintering The time is 0.5-5 hours;

[0036] Step 3: demoulding and forming: after the mixture sintered in step 2 is cooled, it is taken out from the sintering furnace, and the mold is opened to obtain a slow-release flocculation filter material.

[0037] Specifically, in the first step, the flocculant, polymer binder, polycaprolactone and polyethylene wax are stirred evenly to prevent the slow-release flocculation filter material from being poorly filtered due to uneven stirring,...

Embodiment 3

[0045] A preparation method of slow-release flocculation filter material, comprising the following steps:

[0046] Step 1: Mixing: under the condition that the temperature is lower than 40°C and the humidity is lower than 55%RH, the percentage by weight is 60% of flocculant, 25% of polymer binder, 14% of polycaprolactone and release agent 1%

[0047] Mix and stir to obtain a mixture;

[0048] Step 2: Sintering: Put the mixture obtained in Step 1 into a molding mold, and make the mixture evenly filled in the mold, then put the mold into a sintering furnace, and sinter the mold at a temperature of 120-300°C, sintering The time is 0.5-5 hours;

[0049]Step 3: demoulding and forming: after the mixture sintered in step 2 is cooled, it is taken out from the sintering furnace, and the mold is opened to obtain a slow-release flocculation filter material.

[0050] Specifically, in the first step, the flocculant, polymer binder, polycaprolactone and polyethylene wax are stirred evenl...

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Abstract

The invention discloses a preparation method of a sustained-release flocculation filter material. The preparation method comprises the following steps: step one, mixing uniformly: uniformly mixing andstirring 50-90 wt% of a flocculant, 5-35 wt% of a polymer binder, 5-15 wt% of polycaprolactone and 0.5-2 wt% of a mold releasing agent to obtain a mixture; step two, sintering: placing the mixture obtained in the step one in a forming mold, uniformly filling the mixture in the mold, placing the mold in a sintering furnace, and sintering the mold at 120-300 DEG C; and step three, demolding for molding: taking out the mixture from the sintering furnace after cooling the mixture sintered in the step two, opening the mold to obtain the sustained-release flocculation filter material. The preparation method provided by the invention adopts the flocculant to better remove impurities in sewage, and adopts polycaprolactone as a carrier material to realize sustained release of the flocculant; and polycaprolactone has biodegradability, can be completely decomposed into CO2 and H2O in soil and water environments within 6-12 months, has excellent compatibility, and is compatible with PE, PP, ABS,PA, natural rubber and the like.

Description

technical field [0001] The invention relates to the field of sewage purification, in particular to a preparation method of a slow-release flocculation filter material. Background technique [0002] In recent years, my country's chemically synthesized surfactant industry has developed rapidly, and the output of surfactants has increased year by year. At present, most of the surfactants are discharged into natural water bodies such as rivers and oceans without proper treatment after use, which often causes water pollution and the appearance of foam flying across the water. At the same time, it consumes dissolved oxygen in the water and affects the quality of the water body. . Although surfactants with poor biodegradability have been basically eliminated and widely used surfactants are biodegradable, even low concentrations of surfactants will generate a lot of foam, which not only affects the beauty of natural water landscapes, And its biological toxicity also directly threa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/56
CPCC02F1/5236C02F1/56
Inventor 陈芳梅林汉阳吴浩孙楠楠刘荣铨
Owner XIAMEN BAILIN WATER PURIFICATION TECH CO LTD