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Electrochemical reaction system capable of realizing high-efficiency recovery of nitrogen and phosphorus

A technology for chemical reaction and electricity recovery, applied in chemical instruments and methods, electrolysis components, electrolysis processes, etc., can solve the problems of slow formation rate of struvite and insufficient crystal precipitation of struvite, to prevent short circuit and reduce operation. cost, the effect of improving the purity

Active Publication Date: 2019-10-22
HUBEI MEICHEN ENVIRONMENTAL PROTECTION CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention solves the technical problems in the prior art that the formation rate of struvite is not fast, the crystallization and precipitation of struvite is insufficient, and the electrochemical reaction resource recovery of nitrogen and phosphorus needs to provide electric energy

Method used

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  • Electrochemical reaction system capable of realizing high-efficiency recovery of nitrogen and phosphorus
  • Electrochemical reaction system capable of realizing high-efficiency recovery of nitrogen and phosphorus
  • Electrochemical reaction system capable of realizing high-efficiency recovery of nitrogen and phosphorus

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Embodiment 1

[0044] figure 1 It is a front sectional view of an efficient nitrogen and phosphorus recovery electrochemical reaction system of the present invention. figure 2 It is a top view of the electrolytic reaction cell in the high-efficiency nitrogen and phosphorus recovery electrochemical reaction system of the present invention. A high-efficiency nitrogen and phosphorus recovery electrochemical reaction system of the present invention includes a pretreatment unit 1, a feed box 2, a lift pump 3, an electrolytic reaction tank 4, a struvite sedimentation tank 5 and a liquid storage tank 6;

[0045] The pretreatment unit 1 is connected to the first valve 9 through a pipeline, and the first valve 9 is connected to the feed box 2 through a pipeline, and the pretreatment unit 1 is used to transport the feed liquid to the feed through the first valve 9. In the box 2; the pretreatment unit 1 adopts the microfiltration unit as the main body, and puts fillers and other filter adsorption sub...

Embodiment 2

[0052] A high-efficiency nitrogen and phosphorus recovery electrochemical reaction system of the present invention includes a pretreatment unit 1, a feed box 2, a lift pump 3, an electrolytic reaction tank 4, a struvite sedimentation tank 5, a liquid storage tank 6, a distribution box 7 and Wind-solar hybrid power generation system 8;

[0053] The pretreatment unit 1 is connected to the first valve 9 through a pipeline, and the first valve 9 is connected to the feed box 2 through a pipeline, and the pretreatment unit 1 is used to transport the feed liquid to the feed through the first valve 9. In the box 2; the pretreatment unit 1 adopts the microfiltration unit as the main body, and puts fillers and other filter adsorption substances in the pretreatment unit 1 to pretreat the feed wastewater, and the pretreated stock solution passes through the first valve 9 into feed box 2;

[0054] The lift pump 3 is connected to the second valve 10 through a pipeline, and the second valve...

Embodiment 3

[0063] A high-efficiency nitrogen and phosphorus recovery electrochemical reaction system of the present invention includes a pretreatment unit 1, a feed box 2, a lift pump 3, an electrolytic reaction tank 4, a struvite sedimentation tank 5, a liquid storage tank 6, a distribution box 7 and Wind-solar hybrid power generation system 8;

[0064] The pretreatment unit 1 is connected to the first valve 9 through a pipeline, and the first valve 9 is connected to the feed box 2 through a pipeline, and the pretreatment unit 1 is used to transport the feed liquid to the feed through the first valve 9. In the box 2; the pretreatment unit 1 adopts the microfiltration unit as the main body, and puts fillers and other filter adsorption substances in the pretreatment unit 1 to pretreat the feed wastewater, and the pretreated stock solution passes through the first valve 9 into feed box 2;

[0065] The lift pump 3 is connected to the second valve 10 through a pipeline, and the second valve...

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Abstract

The invention discloses an electrochemical reaction system capable of realizing high-efficiency recovery of nitrogen and phosphorus, belonging to the field of water treatment in environmental engineering. The electrochemical reaction system comprises a pretreatment unit, a feeding box, a lift pump, an electrolytic reaction tank, a struvite settling tank and a liquid storage tank. Anode magnesium alloy rods and cathode stainless steel rods are parallel to each other and arranged in a staggered manner and do not contact with each other, and the electrodes are perpendicular to the flow directionof feed liquid; the sum of the length of each anode magnesium alloy rod part located inside the electrolytic reaction tank and the length of one corresponding cathode stainless steel rod part locatedinside the electrolytic reaction tank is greater than the distance between the two side walls of the electrolytic reaction tank, so the flow rate of the feed liquid is reduced due to obstruction of the anode magnesium alloy rods and the cathode stainless steel rods. The electrochemical reaction system of the invention adopts an electrochemical technology to treat phosphorus-and-ammonia-containingwastewater, and the whole system can realize integrated automatic operation and has the advantages of energy conservation, high efficiency, low running cost, simple operation, etc.

Description

technical field [0001] The invention belongs to the field of environmental engineering water treatment, in particular to a high-efficiency electrochemical reaction system for nitrogen and phosphorus recovery. It is a device suitable for resource recovery of nitrogen and phosphorus from phosphorus chemical industry, livestock and poultry breeding and other types of wastewater. Background technique [0002] When pollutants such as nitrogen, phosphorus, and organic matter discharged into the water body exceed its holding capacity, the receiving water body will become eutrophic or turn black and smelly, which will cause the excessive growth of algae and other aquatic organisms in the water body, which will lead to the loss of the receiving water body. corresponding function. In particular, phosphorus is a non-renewable resource that flows in one direction and is increasingly scarce. It is predicted that the phosphate rock resources available for exploitation in the world can o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F9/06C25B1/18C02F103/34C02F103/20
CPCC02F1/46104C02F1/52C02F9/00C02F2001/007C02F2001/46133C02F2101/105C02F2103/20C02F2103/34C02F2201/46105C02F2201/4616C25B1/18
Inventor 吴旭王芳祝国亮付饶李俊成吴丹丹古月圆吕航
Owner HUBEI MEICHEN ENVIRONMENTAL PROTECTION CO LTD
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