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Crystallization reaction apparatus for recovering resources

A reaction device and crystallization technology, applied in the general layout of crystallization devices, crystallization separation, chemical instruments and methods, etc., can solve problems such as application, improve efficiency, improve purity, and increase crystallization reaction speed and efficiency Effect

Inactive Publication Date: 2014-10-22
姜锡雄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In the anaerobic digester included in the usual organic waste treatment process, the organic sludge is digested in a state where the oxygen supply is cut off, so at this time, the microorganisms that have taken up phosphorus are decomposed and the phosphorus is discharged again. Phosphorus is mixed in the solution, so that the phosphorus present in the solution and the nitrogen added from the sludge in the digestion process are fed back to the biological reaction tank together with the dehydration solution, so that there is an excessive nitrogen and phosphorus load applied to the main process. question

Method used

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  • Crystallization reaction apparatus for recovering resources
  • Crystallization reaction apparatus for recovering resources
  • Crystallization reaction apparatus for recovering resources

Examples

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Embodiment 1

[0035] The specific embodiment 1 according to the present invention is observed based on the drawings. figure 1 The configuration of the crystallization reaction apparatus according to the present invention is shown. figure 2 Another example of the crystallization reaction apparatus according to the present invention is illustrated.

[0036] figure 1 and figure 2 The difference is that the upper space of the crystallization reaction tank is formed wider, and the sedimentation guide isolation member is further added, so that the crystal formed after the crystallization reaction can be prevented from moving upward to the maximum.

[0037] The technical composition other than the above-mentioned differences is in figure 1 and figure 2 same, therefore, based on figure 1 Observe the technical constitution of the present invention in detail.

[0038] The present invention is a crystallization reaction tank 11. The crystallization reaction tank 11 is used to remove and recyc...

Embodiment 2

[0072] Example 2 is as image 3 In that way, the composition of the cyclone separator is additionally provided so as to more effectively collect the figure 1 and figure 2 The crystallized substance after the crystallization reaction can be collected by centrifugation.

[0073] Just according to Example 2 image 3 In terms of, as in Example 1 figure 1 and figure 2 In the illustrated drawing, when injecting into the crystal storage tank 39, since crystals and sludge coexist, there exists a problem that the purity of crystals will fall greatly.

[0074] Usually, the specific gravity of the crystals generated by the crystallization reaction is about 1.7, and the specific gravity of the sludge is about 1.05 to 1.17. Therefore, when passing through the cyclone, the sludge and the crystals can be effectively separated.

[0075] And it is constituted that the liquid (crystal+sludge) that has completed the crystallization reaction is injected into the cyclone separator 45, the c...

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Abstract

The present invention relates to a crystallization reaction apparatus, which is provided with one or more agitating wings therein and comprises a seed inlet for increasing crystallization efficiency, for: removing a nutrient salt causing eutrophication such as phosphorus, nitrogen, and the like present in sewage / wastewater-treated water, and a nutrient salt causing eutrophication such as phosphorus, nitrogen, and the like present in an effluent generated in a step of dehydrating the sludge obtained through a digestion tank during a process for treating sludge wastes such as sewage / wastewater sludge, food waste, domestic animal excrement, and the like; and forming plug flow with one or more isolation layers.

Description

technical field [0001] The present invention relates to a device for recovering nutrient salts such as phosphorus and nitrogen that cause eutrophication, and the nutrient salts are present in: water and wastewater treatment water; and produced in the process of dehydrating sludge In the effluent (effluent), the sludge is the sludge discharged through the digestion tank in the process of organic waste treatment such as sewage sludge, food waste, and excrement of livestock, and the present invention relates to a A crystallization reaction device, the device is provided with more than one stirring blade for effective crystallization reaction, and is equipped with a crystal nucleus (crystalline germ) injection port for improving crystallization efficiency, and forms a piston with more than one isolation layer Flow (plug-flow) structure composition. Background technique [0002] Although phosphorus (P) is one of the three major nutrients in food, it is also the most precious nut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/58C02F1/38C02F11/12C02F11/02
CPCC02F1/66C02F2101/105C02F11/04C02F2001/5218C02F1/38C02F1/52C02F1/5236C02F1/5281C02F1/58C02F11/127C02F2101/16C02F2103/00C02F2103/20C02F2201/002C02F11/143B01D9/0059B01D2009/0086
Inventor 姜锡雄
Owner 姜锡雄
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