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A high-efficiency nitrogen and phosphorus recovery electrochemical reaction system

A technology for chemical reaction and electricity recovery, applied in chemical instruments and methods, electrolysis components, electrolysis process, etc., can solve the problems of slow formation rate of struvite and insufficient crystallization and precipitation of struvite.

Active Publication Date: 2021-08-20
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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  • A high-efficiency nitrogen and phosphorus recovery electrochemical reaction system
  • A high-efficiency nitrogen and phosphorus recovery electrochemical reaction system
  • A high-efficiency nitrogen and phosphorus recovery electrochemical reaction system

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Embodiment 1

[0045] 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;

[0046] 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

[0053] 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;

[0054] 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;

[0055] The lift pump 3 is connected to the second valve 10 through a pipeline, and the second valve...

Embodiment 3

[0064] 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;

[0065] 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;

[0066] 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 efficient electrochemical reaction system for nitrogen and phosphorus recovery, which belongs to the field of environmental engineering water treatment. Including pretreatment unit, feed box, lift pump, electrolytic reaction tank, struvite sedimentation tank and liquid storage tank; anode magnesium alloy rods and cathode stainless steel rods are parallel to each other in a staggered state without contact with each other, and the electrodes are perpendicular to the feed liquid Flow direction: the length of the anode magnesium alloy rod located inside the electrolytic reaction cell plus the length of the cathode stainless steel rod located inside the electrolytic reaction cell is greater than the distance between the two side walls of the electrolytic reaction cell, so that the flow rate of the feed liquid is due to the anode magnesium alloy rod and the cathode. The blocking of stainless steel rods is reduced. The invention adopts an electrochemical technology to treat phosphorus-containing ammonia wastewater, and the whole system can realize integrated automatic operation, and has the advantages of energy saving, high efficiency, low operating cost and simple operation.

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 Patents(China)
IPC IPC(8): C25B1/18C02F1/461C02F9/06C02F103/34C02F103/20
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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