CN203668164U - Device for recovering phosphorus from sewage - Google Patents
Device for recovering phosphorus from sewage Download PDFInfo
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- CN203668164U CN203668164U CN201420041322.6U CN201420041322U CN203668164U CN 203668164 U CN203668164 U CN 203668164U CN 201420041322 U CN201420041322 U CN 201420041322U CN 203668164 U CN203668164 U CN 203668164U
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- phosphorus
- sewage
- induced crystallization
- recovering
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Abstract
The utility model relates to a phosphorus recovering device, in particular to a device for recovering phosphorus from sewage. The technical scheme is that the device for recovering the phosphorus from the sewage mainly comprises a water inlet portion, a dosing portion, an acidity adjusting portion, an aeration stirring portion, an induced crystallization reaction portion, a solid-liquid separation portion and a crystal recovering portion, wherein the induced crystallization reaction portion is communicated with the solid-liquid separation portion. The device for recovering the phosphorus from the sewage has the advantages that the device can achieve induced crystallization phosphorus recovery through seed crystal input, and recovered products can be directly applied to industrial and agricultural production to achieve organic combination of sewage treatment, environmental protection and resource re-utilization. In addition, the device has the advantages of being small in occupied area, high in recovery efficiency, good in recovered product quality, low in device investment and convenient to run and operate and has obvious economic benefit, environmental benefit and social benefit.
Description
Technical field
The utility model relates to phosphorus recovery device, is a kind of device that reclaims phosphorus from sewage.
Background technology
Nitrogen and phosphorus are the important factors that causes body eutrophication, wish (Liebig) the least factor law: phosphorus is to cause water eutrophication alga (C from Libiee
106h
263o
110n
16p) limiting factor of growth, there is strict restriction in many countries to its emission concentration.When the concentration of phosphorus reaches 0.015mg/L in water body, can cause algae rapid growth, often can cause 950g(dry weight to water body discharge 1g phosphorus) growth of algae.The direct result of algae rapid growth is accelerated water body ager process exactly, makes water body lose the function of original fishery, tourism and drinking water source.In recent years, China's Main Lakes (as Chaohu, Taihu Lake and Dian Chi) generation body eutrophication even number of times of red tide is visible trend, phosphorus in these lakes more than 80% comes from sewage discharge, these sewage mainly come from town domestic sewage (accounting for 43.4%), livestock industry aquaculture wastewater (accounting for 20.5%), the composite wastewater (accounting for 17.2%) such as fertilizer, medicine and food service industry sewage (accounting for 18.9%) and other.
In addition, the phosphorus of occurring in nature mainly exists with forms such as phosphoric acid salt and guano rocks, after man-made recovery or natural erosion, importing sea with water runoff is deposited in the settled layer at deep-sea, therefore the biochemical cycle of phosphorus is completely different from other element (as nitrogen), in biosphere, belong to individual event and flow and be difficult to regeneration, belong to non-renewable scarce resource.China's phosphate rock resource belongs to mineral products in imminent danger, can not meet one of Prospecting Target of The Main Minerals of national economic development needs after being listed in 2010.But, the phosphorus that contains " abundanter " in town domestic sewage, phosphorous composite fertilizer factory effluent, organophosphorus pesticide factory effluent, phosphorate rock mining, breeding wastewater, slaughterhouse wastewater and Meat processing waste water, recycling has a high potential.
Summary of the invention
The purpose of this utility model is: In view of the foregoing, provide a kind of device that can reclaim phosphorus from sewage, to reach the organic unity of sewage disposal, environment protection and phosphate rock resource recycling.
The technical solution of the utility model is: mainly by water inlet portion, dosing part, acidity adjustment part, aeration agitation part, induced crystallization reactive moieties, solid-liquid separation part, crystal recovery part, described induced crystallization reactive moieties communicates with solid-liquid separation part bottom.
The beneficial effects of the utility model are:
This device adopts calcite as crystal seed rapid induction HAP crystallization, strengthens phosphorus recovering effect, improves phosphorus and reclaims product quality, and phosphorus organic efficiency is high; Increase equipment for separating liquid from solid at induced crystallization reactor flank, improve solid-liquid separation effect, reduce concentration of suspension in water outlet; Employing blast aeration is stirred, and reduces NaOH solution consumption amount, reduces running cost; Phosphorus in sewage reclaims with phosphorus ore HAP crystalline form, can directly apply to industrial or agricultural and produce, and sewage disposal, environment protection and scarce resource resource utilization recycling are organically combined.From sewage, reclaim phosphorus by this induced crystallization reactor and have that floor space is little, organic efficiency is high, reclaim product quality better, the few and operation feature easily of facility investment.
Embodiment
Further illustrate the utility model embodiment below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present utility model.
Number in the figure is as follows: 1, inlet chest; 2, CaCl
2solution reserve tank; 3, NaOH solution reserve tank; 4, intake pump; 5, enter CaCl
2solution pump; 6, enter NaOH solution pump; 7, induced crystallization reactor; 8, aerator; 9, aeration head; 10, back up pad; 11, latch; 12, latch; 13, crystal seed; 14, pH determinator; 15, equipment for separating liquid from solid; 16, buffer zone; 17, exhalant region; 18, support; 19, water tank; 20, the emptying mouth of pipe.
Example 1, as follows with reference to the phosphorus recovery device performance of Fig. 1: to the interior interpolation crystal seed 13 of induced crystallization reactor 7; Utilize lift pump 4 that the phosphorus-containing wastewater in inlet chest 1 is pumped in induced crystallization reactor, utilize pump 6 to add NaOH solution 3, regulate pH>=8.5; Open aerator 8, utilize aeration head 9 to carry out blast aeration 1.5L/min; Utilize pump 5 to add CaCl
2solution 2 is in induced crystallization reactor; In the time that crystal seed and the crystallized product that adheres to thereof flow to 16 position, buffer zone of solid-liquid separator 15, speed moment declines, and turns back to again in induced crystallization reactor, thereby realize solid-liquid separation under the effect of gravity; The sewage of removing after phosphorus enters water tank 19 by exhalant region 17, and in water outlet, phosphorus concentration meets every profession and trade emission standard; When crystal seed adsorbs when saturated, stop aeration, quiescent setting 30min, opens the emptying mouth of pipe 20, pulls out latch 11,12 after emptying solution, takes out back up pad 10, the crystallized product that reclaims crystal seed and adhere to.
Claims (2)
1. one kind is reclaimed the device of phosphorus from sewage, formed by water inlet portion, dosing part, acidity adjustment part, aeration agitation part, induced crystallization reactive moieties, solid-liquid separation part and crystal recovery part, it is characterized in that: in induced crystallization reactor, add crystal seed, stir by blast aeration, crystal seed is fully contacted with configurational ion in sewage, thereby reclaim phosphorus with the crystalline form of phosphorus ore thing; Induced crystallization reactive moieties communicates with solid-liquid separation part, and the crystal seed that buffer zone settles down is turned back in induced crystallization reactor again, has continued induced crystallization function.
2. the device that reclaims phosphorus from sewage according to claim 1, is characterized in that: described crystal seed is calcite, and phosphorus ore thing is calcium phosphate powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041322.6U CN203668164U (en) | 2014-01-22 | 2014-01-22 | Device for recovering phosphorus from sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041322.6U CN203668164U (en) | 2014-01-22 | 2014-01-22 | Device for recovering phosphorus from sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203668164U true CN203668164U (en) | 2014-06-25 |
Family
ID=50964480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420041322.6U Expired - Fee Related CN203668164U (en) | 2014-01-22 | 2014-01-22 | Device for recovering phosphorus from sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203668164U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973723A (en) * | 2015-07-26 | 2015-10-14 | 安徽科技学院 | Device and method for recycling phosphorus by virtue of induced crystallization |
| CN105906007A (en) * | 2016-05-06 | 2016-08-31 | 重庆文理学院 | Phosphorus recovery reactor |
| CN108585271A (en) * | 2018-05-08 | 2018-09-28 | 安徽科技学院 | A method of recycling P elements from sewage |
-
2014
- 2014-01-22 CN CN201420041322.6U patent/CN203668164U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973723A (en) * | 2015-07-26 | 2015-10-14 | 安徽科技学院 | Device and method for recycling phosphorus by virtue of induced crystallization |
| CN105906007A (en) * | 2016-05-06 | 2016-08-31 | 重庆文理学院 | Phosphorus recovery reactor |
| CN105906007B (en) * | 2016-05-06 | 2021-06-18 | 重庆文理学院 | Phosphorus recovery reactor |
| CN108585271A (en) * | 2018-05-08 | 2018-09-28 | 安徽科技学院 | A method of recycling P elements from sewage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20150122 |
|
| EXPY | Termination of patent right or utility model |