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Resin composite, filter aid for water treatment, precoat material for water treatment, and water treatment method

A composite, filter aid technology, applied in special compound water treatment, water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems of difficult particle removal, difficult filtration, and increased sludge volume.

Inactive Publication Date: 2012-09-19
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the treatment efficiency of wastewater is low
In addition, in the conventional method, although the particle size is increased by using agglomerated polymer, there is a problem that the purity of the recyclables is lowered, or the amount of sludge is increased when it is discarded.
If they can be separated into solid and liquid by direct filtration, etc., the number of steps will be reduced, but direct filtration is difficult due to the fine particle size
It is also difficult to effectively remove particles from water using existing methods

Method used

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  • Resin composite, filter aid for water treatment, precoat material for water treatment, and water treatment method
  • Resin composite, filter aid for water treatment, precoat material for water treatment, and water treatment method
  • Resin composite, filter aid for water treatment, precoat material for water treatment, and water treatment method

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Experimental program
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Effect test

no. 1 approach

[0069] First refer to figure 1 The water treatment device used in the first embodiment will be described.

[0070] The water treatment device 1 of the present embodiment is used for the pre-coating method, and is particularly effective when the concentration of water-insoluble substances in the water to be treated is low. The water treatment device 1 includes a coagulation precipitation tank 2, a solid-liquid separation device 3, a separation tank 4, a filter aid tank 5, a mixing tank 6, a raw water supply source not shown, a coagulant addition device (or an alkali addition device), and a concentration The water storage tank, these devices and devices are connected to each other through a plurality of piping lines L1-L8. Various pumps P1 to P9, valves V1 to V3, unillustrated gauges and sensors are attached to the piping lines L1 to L8. Detection signals are input from these gauges and sensors to an input unit of a controller (not shown), and control signals are output from t...

no. 2 approach

[0115] refer to Figure 4 , the water treatment device 1A used in the water treatment method of the second embodiment will be described. In addition, the description of the part which overlaps between this embodiment and the above-mentioned embodiment is abbreviate|omitted.

[0116] The water treatment device 1A of the present embodiment is used in the main body charging method, and is particularly effective when the concentration of water-insoluble substances in water is high. The device 1A of the present embodiment differs from the device 1 of the above-mentioned first embodiment in that the mixing tank 6 is not included in the device 1A, and a mixing and precipitation tank 2A ​​is provided instead of the aggregation and precipitation tank 2 . The mixing precipitation tank 2A ​​has both a precipitation function of adding an alkali to the water to be treated to precipitate a compound salt and a mixing function of adding a filter aid to the water to be treated and mixing them...

Embodiment 1

[0155] Sodium hydroxide was added to the wastewater containing 1000 ppm copper sulfate to adjust the pH to 11 to precipitate copper hydroxide. Resin composite A was mixed in this water to 5000ppm, pressure filtration was performed using a filter cloth with a pore size of about 1 μm, and copper hydroxide and copper oxide were removed by the main body feeding method. As a result, it was confirmed that more than 99% of copper in the water was removed.

[0156] Next, water was mixed with the layer deposited on the filter cloth to prepare a mixed solution of resin composite and copper precipitate, which was taken out to another container, and the resin composite was taken out with a permanent magnet. As a result, it was confirmed that the copper hydroxide and the dehydrogenation Water-insoluble substances other than copper oxide are separated in water. As a result, the taken out resin composite can be reused without any problem.

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Abstract

According to one embodiment, a magnetic material coated resin includes an aggregate obtainable by aggregation of primary particles includes magnetic particles of which surfaces are coated with a polymer. The primary particles have an average diameter D1 which is 0.5 to 20 [mu]m. The aggregate has an average aggregate diameter D2 which satisfies D1<D2<=20 [mu]m. The polymer has an average surface coating thickness t which satisfies 0.01<t<=0.25 [mu]m.

Description

[0001] This application is based on and claims priority from Japanese Priority Patent Application No. 2011-057131 filed on March 15, 2011, the entire contents of which are incorporated herein by reference. technical field [0002] The embodiments described here relate to a resin composite (resin-coated magnetic body) containing magnetic powder and a polymer, a filter aid for water treatment for separating and removing harmful substances and valuable substances contained in water, and a precoat material for water treatment. and water treatment methods using them. Background technique [0003] Recently, effective use of water resources has been sought due to industrial development and population increase. Therefore, the reuse of wastewater such as industrial drainage is very important. In order to achieve this goal, it is necessary to carry out the evolution of water, that is, to separate other substances from water. Various methods are known as methods for separating other ...

Claims

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Application Information

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IPC IPC(8): B01D37/02C02F1/00C02F1/56C02F1/58C02F1/62
CPCC02F1/66C02F9/00C02F1/56C02F1/488C02F1/001C02F1/288C02F2101/20C02F2305/04
Inventor 深谷太郎堤剑治山崎厚山梨伊知郎野口博史菊池靖崇关秀司
Owner KK TOSHIBA