CN106904721B - Seawater desalination and mineralization integrated system and use method thereof - Google Patents
Seawater desalination and mineralization integrated system and use method thereof Download PDFInfo
- Publication number
- CN106904721B CN106904721B CN201710187030.1A CN201710187030A CN106904721B CN 106904721 B CN106904721 B CN 106904721B CN 201710187030 A CN201710187030 A CN 201710187030A CN 106904721 B CN106904721 B CN 106904721B
- Authority
- CN
- China
- Prior art keywords
- chamber
- mineralization
- seawater
- water
- transition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention relates to a seawater desalination and mineralization integrated system and a using method thereof. The seawater desalinated water is precipitated by a seawater reservoir, purified and purified to remove impurities in seawater and then is connected with a water inlet pipe at the upper part of a mineralization chamber through a conveying pipeline, the mineralization chamber consists of a mineralization chamber front chamber, a mineralization chamber rear chamber and a transition chamber, the mineralization chamber front chamber, the mineralization chamber rear chamber and the transition chamber are divided into the mineralization chamber front chamber, the mineralization chamber rear chamber and the transition chamber through a mineralization chamber partition plate and a mineralization chamber bottom plate, a transition chamber connecting pipe is arranged between the transition chamber front chamber and the transition chamber, mineralization chamber main body supporting legs are arranged at the bottom of the mineralization chamber, the mineralization chamber main body supporting legs support the mineralization chamber and a collapse chamber, a water inlet pipe is arranged at one side of the upper part of. The invention has reasonable structure, scientific design, convenient use, simple manufacture and small occupied area, simplifies the operation process, organically combines membrane aeration and mineralization together, improves the mineralization effect and shortens the mineralization time.
Description
Technical Field
The invention relates to mineralization equipment in the field of seawater desalination, in particular to a seawater desalination and mineralization integrated system and a use method of the seawater desalination and mineralization integrated system.
Background
In recent years, seawater desalination develops rapidly in the world and becomes an important water source for many water-deficient countries and cities, but most researches are limited to the fields of desalination processes, equipment and the like, and the safety problem that seawater desalinated water enters a pipe network is not focused until the beginning of the century. The seawater desalinated water has strong corrosivity, can not directly enter a municipal pipe network, can not be directly used as domestic water, and needs to be subjected to post-treatment when entering the municipal pipe network and being used as necessary supplement of the domestic water.
At present, the mineralization technology for seawater desalination water mainly comprises two types: contact mineralization and medicated mineralization. Contact mineralization method: fully contacting the acidified desalted water with the calcium carbonate-rich filler, and dissolving the calcium carbonate into the water. The contact mineralization method has low effluent turbidity, very rich ions and strong buffering capacity, and the contact mineralization method needs low-price raw materials; however, the contact mineralization method also has the problems of unsatisfactory mineralization effect, long hydraulic retention time and the like.
Chemical addition type mineralization method: the method can improve the hardness and alkalinity of the desalted water by adding a certain amount of mineralized raw materials and adjusting the PH. The chemical-adding type mineralization method has the advantages of high speed, small occupied area and the like, but also has the defects of large turbidity of mineralized effluent, high raw material and operation cost and the like.
Disclosure of Invention
The invention mainly aims to solve the problems in the seawater desalination and mineralization technology, and provides a seawater desalination and mineralization integrated system and a use method of the seawater desalination and mineralization integrated system.
The mineralization technology of the seawater desalination water needs to introduce other methods for combined development and design of novel devices, the technology of the seawater desalination water acidified by carbon dioxide is applied to a contact type mineralization device, the carbon dioxide is exposed into a seawater desalination water mineralization tower through a hollow fiber membrane instead of directly acidifying the seawater desalination water, the hydraulic retention time of the seawater desalination water in a mineralization tank is shortened, and the utilization rate of the carbon dioxide and the mineralization efficiency of the seawater desalination water are improved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the device consists of a mineralization chamber and a drop chamber, wherein carbon dioxide gas is exposed into the mineralization chamber through an isolation diaphragm capsule assembly, the carbon dioxide contacts and reacts with the mineralization filler and the seawater desalination water, the calcium ion content and the alkalinity of the seawater desalination water are increased, the drop chamber is used for implementing the drop, the carbon dioxide in the seawater desalination water is removed, the oxygen content in the seawater desalination water is increased, the pH value is increased to be more than 7, and the stability and the safety of outlet water are improved.
The invention mainly comprises two parts: the mineralizing chamber part and the dropping chamber part. The mineralization chamber is partially divided into two mineralization chambers, a water inlet pipe is connected with a first mineralization chamber (water inlet from the upper part and water outlet from the lower part), a mineralization filler layer is arranged, a membrane aeration unit is arranged in the mineralization filler layer, a mineralization chamber bottom plate is arranged at the bottom of the mineralization chamber, a through hole is arranged on the mineralization chamber bottom plate, a mineralization filler layer (water inlet from the lower part and water outlet from the upper part) is arranged in a second mineralization chamber, and a membrane aeration unit is arranged in the mineralization filler layer.
The seawater desalted water after being precipitated and purified by a seawater reservoir to remove impurities in seawater is connected with a water inlet pipe at the upper part of a mineralization chamber through a conveying pipeline, the mineralization chamber consists of a mineralization chamber front chamber, a mineralization chamber rear chamber and a transition chamber, the mineralization chamber is integrally box-shaped, the mineralization chamber is made of stainless steel metal materials, a box body of the mineralization chamber is closed and is divided into the mineralization chamber front chamber, the mineralization chamber rear chamber and the transition chamber through a mineralization chamber partition plate and a mineralization chamber bottom plate, the mineralization chamber partition plate and the mineralization chamber bottom plate are made of stainless steel metal materials, the transition chamber is formed by dividing the mineralization chamber bottom plate at the bottom of the mineralization chamber, the transition chamber is made of stainless steel metal materials, the mineralization chamber front chamber and the mineralization chamber rear chamber of the mineralization chamber are arranged above the transition chamber, through holes are arranged on the mineralization chamber bottom plate and are communicated with the mineralization chamber front chamber and the mineralization chamber rear chamber, the middle part of the transition chamber is divided, the transition chamber connecting pipe is arranged between the transition front chamber and the transition rear chamber and is communicated with the transition front chamber and the transition rear chamber, the transition chamber connecting pipe and the transition chamber connecting pipe are made of stainless steel metal materials, the bottom of the mineralization chamber is provided with mineralization chamber main body supporting legs, and the mineralization chamber main body supporting legs support the mineralization chamber and the collapse chamber.
When seawater desalted water enters a mineralization chamber, the seawater desalted water enters a first mineralization chamber and then enters a second mineralization chamber, carbon dioxide gas is exposed into the mineralization chamber through a membrane component, the exposed carbon dioxide is in contact reaction with mineralization fillers and the seawater desalted water, the calcium ion content and alkalinity of the seawater desalted water are increased, the mineralization chamber is composed of a mineralization chamber front chamber, a mineralization chamber rear chamber and a transition chamber, a mineralization chamber partition plate and a mineralization chamber bottom plate are adopted to divide the mineralization chamber front chamber, the mineralization chamber rear chamber and the mineralization chamber transition chamber, the transition chamber is arranged below the mineralization chamber, the transition chamber is used for transferring the seawater desalted water from the mineralization chamber front chamber to the mineralization chamber rear chamber, mineralization operation is carried out again, the mineralization chamber front chamber is formed by the transition chamber, the seawater desalted water enters and exits from the mineralization chamber front chamber, the mineralization chamber rear chamber enters and exits from the mineralization chamber, and the seawater.
The mineralization chamber front chamber and the mineralization chamber rear chamber are arranged on the bottom plate of the mineralization chamber of the transition chamber, the mineralization filling layers are arranged in the mineralization chamber front chamber and the mineralization chamber rear chamber and are mainly filled by calcite materials, isolation diaphragm boxes are arranged in the filled mineralization filling layers, at least 3 isolation diaphragm boxes are respectively arranged in the mineralization chamber front chamber and the mineralization chamber rear chamber, the isolation diaphragm boxes are made of stainless steel metal materials, an air inlet pipe is arranged on each isolation diaphragm box and is communicated with the outside of the mineralization chamber box, the air inlet pipe is connected with a carbon dioxide gas tank through a pipeline and is input into the isolation diaphragm boxes in a pumping mode for aeration, hollow fiber membranes are arranged in the isolation diaphragm boxes, sealing rubber pads are arranged at the end parts of the isolation diaphragm boxes and are made of plastic materials or polyurethane materials, and the end parts of the.
The invention arranges the mineralization packing layers in the front chamber and the rear chamber of the mineralization chamber, arranges an isolation diaphragm box in the mineralization packing layer, arranges hollow fibers in the isolation diaphragm box, pumps and inputs carbon dioxide gas from the air inlet pipe for aeration, the carbon dioxide gas and the seawater desalination water are contacted, reacted and fused, and the calcium ion content and alkalinity of the seawater desalination water are improved.
One side of the upper part of the mineralization chamber is provided with a water inlet pipe, seawater desalination water enters the upper part of the front chamber of the mineralization chamber from the water inlet pipe of the mineralization chamber, and the seawater desalination water moves downwards to the bottom plate of the mineralization chamber, namely the seawater desalination water enters from the top and exits from the bottom.
The other side of the upper part of the mineralization chamber is provided with a water outlet pipe of the mineralization chamber, seawater desalination water enters the rear chamber of the mineralization chamber from a through hole of a bottom plate of the mineralization chamber at the lower part of the mineralization chamber, and the seawater desalination water moves upwards to the water outlet pipe of the mineralization chamber at the upper part of the mineralization chamber and is led out, namely the seawater desalination water enters from bottom to top.
The seawater desalination water enters the mineralization chamber, enters from top to bottom in the front chamber of the mineralization chamber, runs from top to bottom, enters the rear chamber of the mineralization chamber through the transition chamber, enters from bottom to top, and runs from bottom to top, so that the mineralization process is formed.
Reaction of the mineralized portion:
CO2+H2O⇌H2CO3
CaCO3+H2CO3⇌Ca(HCO3)2
CaCO3+CO2+H2O⇌Ca(HCO3)2
the water outlet pipe of the mineralization chamber is connected with the upper end of the fall chamber, at least 5 water outlet pipes of the mineralization chamber are arranged, seawater desalinated by the mineralization chamber flows into the fall chamber through the water outlet pipes of the mineralization chamber, the fall chamber is integrally in a box shape and is made of stainless steel metal, fall plates are arranged in the fall chamber from top to bottom, the fall plates are integrally in an L shape and are oppositely arranged in an up-and-down step shape, odd-numbered plates of the fall plates are oppositely arranged with even-numbered plates of the fall plates, the fall plates at the lower part are used for bearing the fall plates at the upper part, the fall plates are made of metal or plastic, seawater desalinated water falls from the upper part of the fall chamber, each fall plate is used for bearing seawater desalinated water falling from the fall plates and gradually falls to form the fall plates, a large amount of unreacted carbon dioxide in the seawater desalinated water is removed in the fall chamber, and the oxygen content of the seawater desalinated water is increased, the pH value of the seawater desalinated water after the collapse can be greatly increased to about 7.
The mineralized seawater desalinated water enters the drop-down chamber, an L-shaped drop-down plate is arranged in the middle of the drop-down chamber (water enters from the upper part and water exits from the lower part), and the drop-down plate is away from the wall surface of the drop-down chamber by a certain distance. Carbon dioxide in the seawater desalinated water is removed in the falling process, the content of oxygen in the water is increased, and the pH value of the outlet water after falling is increased to more than 7, so that the stability and the safety of the outlet water are greatly improved.
The lower part of the falling chamber is provided with a water outlet pipe, the water outlet pipe collects the seawater desalted water falling from the falling chamber, the seawater desalted water is led out by the water outlet pipe, the water outlet pipe is connected with a water collecting tank through a pipeline, and the led seawater desalted water is sent into the water collecting tank for standby.
The seawater desalted water falling down in the invention is led out from a water outlet pipe at the lower part of the falling chamber, and the water outlet pipe is connected with a pipeline and is conveyed to a water collecting tank for standby.
The seawater desalinated water is precipitated and purified by a seawater reservoir to remove impurities in the seawater and then is conveyed to a mineralization chamber through a conveying pipeline, the seawater desalinated water flows into the upper part of a mineralization chamber front chamber of the mineralization chamber from a water inlet pipe at the upper part of the mineralization chamber, the seawater desalinated water flows through a mineralization filler layer arranged in the mineralization chamber front chamber and moves from top to bottom, the seawater desalinated water is mineralized with a filler of the mineralization filler layer in the process of moving from top to bottom, the mineralization is carried out, meanwhile, aeration is carried out on the mineralization filler layer in the mineralization chamber front chamber from an air inlet pipe of an isolation diaphragm capsule arranged in the mineralization filler layer, carbon dioxide gas is pumped into the isolation diaphragm capsule from a carbon dioxide gas tank, the seawater desalinated water is in contact reaction with the carbon dioxide.
When the seawater desalinated water flows through each group of isolation diaphragm boxes, the hollow fiber membranes in the isolation diaphragm boxes release carbon dioxide gas to the seawater desalinated water flowing through the mineralized filler layer, aeration is performed, the exposed carbon dioxide is in contact reaction with the mineralized filler and the seawater desalinated water, and the calcium ion content and the alkalinity of the seawater desalinated water are improved.
The seawater desalted water enters the front chamber of the mineralization chamber from the water inlet pipe, moves downwards along with the self gravity of the seawater desalted water, passes through the through hole of the bottom plate of the mineralization chamber at the bottom of the front chamber of the mineralization chamber, enters the transition front chamber of the transition chamber, flows into the transition rear chamber from the connecting pipe of the transition chamber along with the continuous inflow of the seawater desalted water in the transition front chamber, the seawater desalted water in the transition front chamber accumulates in the transition rear chamber, the water level of the seawater desalted water continuously rises, the seawater desalted water in the front chamber of the mineralization chamber continuously enters the transition front chamber, the water pressure of the seawater desalted water in the transition front chamber continuously rises, the seawater desalted water in the transition rear chamber is pushed to enter the rear chamber of the mineralization chamber through the through hole of the bottom plate of the mineralization chamber and moves upwards, the seawater desalted water flows through the mineralization filler layer arranged in the rear, when the mineralization is implemented, the air is aerated from the air inlet pipe of the isolation diaphragm capsule arranged in the mineralization filler layer to the mineralization filler layer in the front chamber of the mineralization chamber, carbon dioxide gas is pumped from the carbon dioxide gas tank to the isolation diaphragm capsule, the seawater desalination water is in contact reaction with the carbon dioxide gas, and the calcium ion content and the alkalinity of the seawater desalination water are increased again.
When the seawater desalted water rises to the top of the rear chamber of the mineralization chamber and flows out of the water outlet pipe of the mineralization chamber to enter the upper part of the drop chamber, the seawater desalted water mineralized by the mineralization chamber flows into the drop chamber through the water outlet pipe of the mineralization chamber, the mineralized seawater desalted water drops from the upper part of the drop chamber, drop plates are arranged in the drop chamber from top to bottom, the dropped seawater desalted water drops along with the drop plates one by one to form drop drops, a large amount of unreacted carbon dioxide in the seawater desalted water in the drop chamber is removed, the oxygen content in the seawater desalted water is increased, and the pH value of the seawater desalted water after the drops can be greatly increased to about 7.
When the seawater desalted water moves to the lower part of the falling chamber, the seawater desalted water after falling is led out from a water outlet pipe arranged at the lower part of the falling chamber, the water outlet pipe is connected with a water collecting tank through a pipeline, and the led seawater desalted water is sent into the water collecting tank for standby.
The invention relates to a seawater desalination and mineralization integrated system and a using method thereof. The membrane-type water-saving mineralizing device has the advantages of reasonable structure, scientific design, convenience in use, simplicity in manufacture, small occupied area, simplicity in operation and operation process, capability of organically combining membrane aeration with mineralizing, capability of overcoming the defects of the traditional mineralizing device, improvement of the mineralizing effect of seawater desalted water and shortening of the mineralizing time of the seawater desalted water. The hollow fiber membrane is exposed into the mineralization chamber, so that the reaction contact area of carbon dioxide in the mineralization chamber is increased, and the utilization efficiency of the carbon dioxide is improved; the carbon dioxide enters the mineralization chamber in a molecular state, and the carbon dioxide in the molecular state is fully reacted in the mineralization chamber, so that the mineralization effect of the seawater is improved; the carbon dioxide gas in the mineralization chamber is fully utilized, the pH value of the effluent is improved through the drop chamber, and the safety of seawater desalination is further improved; two mineralization chambers are arranged in the mineralization chamber, so that the travel of the seawater desalted water in the mineralization chambers is increased, and the mineralization efficiency of the seawater desalted water is improved.
Drawings
The invention is described in detail below with reference to the figures and examples.
FIG. 1 is a schematic diagram of an integrated system for desalinating seawater and mineralizing seawater
FIG. 2 is a schematic view of a seawater desalination and mineralization integrated system
1 water inlet pipe, 3 mineralized filler layers, 4 isolating membrane boxes, 6 falling chamber, 7 mineralized chamber water outlet pipes, 8 falling plate, 9 water outlet pipes, 10 air inlet pipes, 11 sealing rubber pads and 12 hollow fiber membranes.
Detailed Description
Example 1
The seawater desalination and mineralization integrated system consists of a mineralization chamber and a drop chamber 6, carbon dioxide gas is exposed into the mineralization chamber through an isolation diaphragm capsule 4 assembly, the carbon dioxide contacts and reacts with the mineralization filler and the seawater desalination water, the calcium ion content and alkalinity of the seawater desalination water are increased, the drop chamber 6 is implemented to drop, the carbon dioxide in the seawater desalination water is removed, the oxygen content in the seawater desalination water is increased, the pH value is increased to be more than 7, and the stability and safety of outlet water are improved.
The seawater desalinated water after being precipitated and purified by a seawater reservoir to remove impurities in seawater is connected with a water inlet pipe 1 at the upper part of a mineralization chamber through a conveying pipeline, the mineralization chamber consists of a mineralization chamber front chamber, a mineralization chamber rear chamber and a transition chamber, the mineralization chamber is integrally box-shaped, the mineralization chamber is made of stainless steel metal materials, a box body of the mineralization chamber is closed and is divided into the mineralization chamber front chamber, the mineralization chamber rear chamber and the transition chamber through a mineralization chamber partition plate and a mineralization chamber bottom plate, the mineralization chamber partition plate and the mineralization chamber bottom plate are made of stainless steel metal materials, the transition chamber is formed by dividing the mineralization chamber bottom plate into the mineralization chamber front chamber, the mineralization chamber rear chamber and the mineralization chamber bottom plate, through holes are arranged on the mineralization chamber bottom plate and are communicated with the mineralization chamber front chamber and the mineralization chamber rear chamber, and the transition chamber is divided into two parts, the transition chamber and the transition rear chamber are formed, a transition chamber connecting pipe is arranged between the transition front chamber and the transition rear chamber and is communicated with the transition front chamber and the transition rear chamber, the transition chamber connecting pipe and the transition chamber connecting pipe are made of stainless steel metal materials, the bottom of the mineralization chamber is provided with mineralization chamber main body supporting legs, and the mineralization chamber main body supporting legs support the mineralization chamber and the falling chamber 6, as shown in figures 1 and 2.
Furthermore, it is considered in this embodiment that a mineralization chamber front chamber and a mineralization chamber rear chamber are arranged on the mineralization chamber bottom plate of the transition chamber, mineralization filler layers 3 are arranged in the mineralization chamber front chamber and the mineralization chamber rear chamber, the mineralization filler layers 3 are mainly filled with calcite materials, isolation diaphragm boxes 4 are arranged in the filled mineralization filler layers 3, at least 3 isolation diaphragm boxes 4 are respectively arranged in the mineralization chamber front chamber and the mineralization chamber rear chamber, the isolation diaphragm boxes 4 are made of stainless steel metal materials, each isolation diaphragm box 4 is provided with an air inlet pipe 10, the air inlet pipe 10 is communicated with the exterior of the mineralization chamber box, the air inlet pipe 10 is connected with a carbon dioxide tank through a pipeline, the air is input into the isolation diaphragm boxes 4 by a pumping mode for aeration, a hollow fiber membrane 12 is arranged in the isolation diaphragm boxes 4, a sealing rubber pad 11 is arranged at the end part of the isolation diaphragm boxes 4, the sealing rubber, preventing the end of the isolation bellows 4 from leaking, as shown in fig. 1 and 2.
Furthermore, it can be considered in this embodiment that a water inlet pipe 1 is disposed at one side of the upper portion of the mineralization chamber, the desalinated seawater enters the upper portion of the front chamber of the mineralization chamber from the water inlet pipe 1 of the mineralization chamber, and the desalinated seawater moves downward to the bottom plate of the mineralization chamber, i.e., the desalinated seawater enters and exits from the top.
The other side of the upper part of the mineralization chamber is provided with a water outlet pipe 7 of the mineralization chamber, seawater desalination water enters the rear chamber of the mineralization chamber from a through hole of a bottom plate of the mineralization chamber at the lower part of the mineralization chamber, and the seawater desalination water moves upwards to the water outlet pipe 7 of the mineralization chamber at the upper part of the mineralization chamber and is led out, namely the seawater desalination water enters from bottom to top as shown in figures 1 and 2.
Furthermore, it is also considered in this embodiment that the water outlet pipe 7 of the mineralization chamber is connected with the upper end of the fall chamber 6, at least 5 water outlet pipes 7 of the mineralization chamber are arranged, the seawater desalinated by the mineralization chamber flows into the fall chamber 6 through the water outlet pipe 7 of the mineralization chamber, the whole of the fall chamber 6 is in a box shape, the fall chamber 6 is made of stainless steel metal, fall plates 8 are arranged in the fall chamber 6 from top to bottom, the fall plates 8 are in an L shape, the fall plates 8 are oppositely arranged in an up-down step shape, odd number plates of the fall plates 8 are arranged opposite to even number plates of the fall plates 8, the fall plate 8 at the lower part is made of metal or plastic, the seawater desalinated water falls from the upper part of the fall chamber 6, each fall plate 8 is used for bearing the seawater desalinated water falling from the upper part of the fall plate 8, a large amount of carbon dioxide which does not react with the seawater in the fall chamber 6, the oxygen content in the seawater desalination water is increased, and the pH value of the seawater desalination water after the seawater desalination water is fallen down can be greatly increased to about 7, as shown in figures 1 and 2.
Furthermore, it may also be considered in this embodiment that a water outlet pipe 9 is disposed at the lower portion of the falling chamber 6, the water outlet pipe 9 collects the seawater desalinated water falling from the falling chamber, the seawater desalinated water is led out by the water outlet pipe 9, the water outlet pipe 9 is connected to the water collecting tank through a pipeline, and the led seawater desalinated water is sent to the water collecting tank for standby, as shown in fig. 1 and 2.
Furthermore, it can be considered in this embodiment that the seawater desalinated water after being precipitated and purified by the seawater reservoir to remove impurities in the seawater is transported to the mineralization chamber through the transport pipeline, the seawater desalinated water flows into the upper part of the front chamber of the mineralization chamber from the water inlet pipe 1 on the upper part of the mineralization chamber, the seawater desalinated water moves from top to bottom through the mineralization packing layer 3 arranged in the front chamber of the mineralization chamber, the seawater desalinated water mineralizes with the packing of the mineralization packing layer 3 in the process of moving from top to bottom, while the mineralization is performed, the air is aerated to the front chamber packing layer 3 of the mineralization chamber from the air inlet pipe 10 of the isolation capsule 4 arranged in the mineralization packing layer 3, carbon dioxide gas is pumped from the carbon dioxide gas tank to the isolation capsule 4, the seawater desalinated water reacts with the carbon dioxide gas in a contact manner to increase the, as shown in fig. 1 and 2.
Furthermore, it can be considered in this embodiment that when the desalinated seawater flows through each set of isolation diaphragm capsule 4, the hollow fiber membrane 12 in the isolation diaphragm capsule 4 releases carbon dioxide gas to the desalinated seawater flowing through the mineralized filler layer 3, so as to perform aeration, and the exposed carbon dioxide reacts with the mineralized filler and the desalinated seawater in a contact manner, so as to increase the calcium ion content and alkalinity of the desalinated seawater.
The seawater desalted water enters the front chamber of the mineralization chamber from the water inlet pipe 1, moves downwards along with the self gravity of the seawater desalted water, passes through the through hole of the bottom plate of the mineralization chamber at the bottom of the front chamber of the mineralization chamber, enters the transition front chamber of the transition chamber, flows into the transition rear chamber from the connecting pipe of the transition chamber along with the continuous inflow of the seawater desalted water in the transition front chamber, the seawater desalted water in the transition front chamber accumulates in the transition rear chamber, the water level of the seawater desalted water continuously rises, the seawater desalted water in the front chamber of the mineralization chamber continuously enters the transition front chamber, the water pressure of the seawater desalted water in the transition front chamber continuously rises, the seawater desalted water in the transition rear chamber is pushed to enter the rear chamber of the mineralization chamber through the through hole of the bottom plate of the mineralization chamber and moves upwards, the seawater desalted water flows through the mineralization filler layer 3 arranged in the rear chamber, when mineralization is carried out, aeration is carried out on the mineralization packing layer 3 in the front chamber of the mineralization chamber from an air inlet pipe 10 of an isolation diaphragm capsule 4 arranged in the mineralization packing layer 3, carbon dioxide gas is pumped from a carbon dioxide gas tank to be input into the isolation diaphragm capsule 4, seawater desalination water is in contact reaction with the carbon dioxide gas, and the calcium ion content and the alkalinity of the seawater desalination water are increased again, as shown in figures 1 and 2.
Furthermore, it can be considered in this embodiment that when the desalinated seawater rises to the top of the back chamber of the mineralization chamber and flows out of the water outlet pipe 7 of the mineralization chamber and enters the upper part of the drop chamber 6, the desalinated seawater after being mineralized by the mineralization chamber flows into the drop chamber 6 through the water outlet pipe 7 of the mineralization chamber, the mineralized desalinated seawater falls from the upper part of the drop chamber 6, the drop plate 8 is arranged in the drop chamber 6 from top to bottom, the fallen desalinated seawater falls down along with the drop plate 8 block by block to form a drop fall, a large amount of unreacted carbon dioxide in the desalinated seawater is removed from the desalinated seawater in the drop chamber 6, the oxygen content in the desalinated seawater is increased, and the pH value of the desalinated seawater after being dropped can be greatly increased to about 7, as shown in fig. 1 and fig. 2.
Furthermore, it can be considered in this embodiment that, when the desalinated seawater moves to the lower portion of the drop-down chamber 6, the desalinated seawater after being dropped is led out from an outlet pipe 9 arranged at the lower portion of the drop-down chamber 6, the outlet pipe 9 is connected with the water collecting pool through a pipeline, and the led desalinated seawater is sent to the water collecting pool for standby, as shown in fig. 1 and 2.
Claims (2)
1. A seawater desalination and mineralization integrated system is characterized by comprising a mineralization chamber and a falling chamber (6), wherein carbon dioxide gas is exposed into the mineralization chamber through an isolation diaphragm capsule (4) component, the carbon dioxide contacts and reacts with a mineralization filler and seawater desalination water, the calcium ion content and alkalinity of the seawater desalination water are increased, the falling chamber (6) is used for falling, the carbon dioxide in the seawater desalination water is removed, the oxygen content in the seawater desalination water is increased, the pH value is increased to be more than 7, and the stability and safety of outlet water are improved;
the seawater desalinated water after being precipitated and purified by a seawater reservoir to remove impurities in seawater is connected with a water inlet pipe (1) at the upper part of a mineralization chamber through a conveying pipeline, the mineralization chamber consists of a mineralization chamber front chamber, a mineralization chamber rear chamber and a transition chamber, the mineralization chamber is integrally box-shaped, the mineralization chamber is made of stainless steel metal materials, a box body of the mineralization chamber is closed and is divided into the mineralization chamber front chamber, the mineralization chamber rear chamber and the transition chamber through a mineralization chamber partition plate and a mineralization chamber bottom plate, the mineralization chamber partition plate and the mineralization chamber bottom plate are made of stainless steel metal materials, the transition chamber is formed by dividing the mineralization chamber bottom plate, the transition chamber is made of stainless steel metal materials, the mineralization chamber front chamber and the mineralization chamber rear chamber of the mineralization chamber are arranged above the transition chamber, through holes are arranged on the mineralization chamber bottom plate and are communicated with the mineralization chamber front chamber and the mineralization chamber rear chamber, and the transition chamber is divided into two, the transition front chamber and the transition rear chamber are formed, a transition chamber connecting pipe is arranged between the transition front chamber and the transition rear chamber and is communicated with the transition front chamber and the transition rear chamber, the transition chamber and transition chamber connecting pipe is made of stainless steel metal materials, the bottom of the mineralization chamber is provided with mineralization chamber main body supporting legs, and the mineralization chamber main body supporting legs support the mineralization chamber and the falling chamber (6);
a mineralization chamber front chamber and a mineralization chamber rear chamber are arranged on the bottom plate of the mineralization chamber of the transition chamber, mineralization filler layers (3) are arranged in the mineralization chamber front chamber and the mineralization chamber rear chamber, the mineralization filler layers (3) are mainly filled by calcite materials, isolation diaphragm boxes (4) are arranged in the filled mineralization filler layers (3), at least 3 isolation diaphragm boxes (4) are respectively arranged in the mineralization chamber front chamber and the mineralization chamber rear chamber, the isolation diaphragm boxes (4) are made of stainless steel metal materials, an air inlet pipe (10) is arranged on each isolation diaphragm box (4), the air inlet pipe (10) is communicated with the outside of the mineralization chamber box body, the air inlet pipe (10) is connected with a carbon dioxide gas tank through a pipeline and is input into the isolation diaphragm boxes (4) for aeration in a pumping mode, a hollow fiber membrane (12) is arranged in the isolation diaphragm boxes (4), a sealing rubber gasket (11) is arranged at the end part of the isolation diaphragm boxes (4), the end part of the isolation diaphragm box (4) is prevented from leaking;
one side of the upper part of the mineralization chamber is provided with a water inlet pipe (1), seawater desalted water enters the upper part of a front chamber of the mineralization chamber from the water inlet pipe (1) of the mineralization chamber, and the seawater desalted water moves downwards to a bottom plate of the mineralization chamber, namely the seawater desalted water enters from the top and exits from the bottom plate;
the other side of the upper part of the mineralization chamber is provided with a water outlet pipe (7) of the mineralization chamber, seawater desalination water enters the rear chamber of the mineralization chamber from a through hole of a bottom plate of the mineralization chamber at the lower part of the mineralization chamber, and the seawater desalination water moves upwards to the water outlet pipe (7) of the mineralization chamber at the upper part of the mineralization chamber and is led out, namely the seawater desalination water enters from the lower part and goes out from the upper part;
the water outlet pipe (7) of the mineralization chamber is connected with the upper end of the fall chamber (6), at least 5 water outlet pipes (7) of the mineralization chamber are arranged, seawater desalinated by the mineralization chamber flows into the fall chamber (6) through the water outlet pipes (7) of the mineralization chamber, the whole fall chamber (6) is in a box shape, the fall chamber (6) is made of stainless steel metal, fall plates (8) are arranged in the fall chamber (6) from top to bottom, the whole fall plates (8) are in an L shape, the fall plates (8) are oppositely arranged in an up-down step shape, odd number plates of the fall plates (8) and even number plates of the fall plates (8) are oppositely arranged, the fall plate (8) at the lower part is made of metal or plastic, seawater desalinated water falls from the upper part of the fall chamber (6), and each fall plate (8) is made of metal or plastic, and is used for receiving the seawater desalinated water of the fall plates (8), the seawater falls one by one to form a falling fall, a large amount of unreacted carbon dioxide in the seawater is removed from the seawater desalination water in the falling chamber (6), the oxygen content in the seawater desalination water is increased, and the pH value of the seawater desalination water after falling can be greatly increased to 7;
a water outlet pipe (9) is arranged at the lower part of the falling chamber (6), the water outlet pipe (9) collects the seawater desalted water falling from the falling chamber, the seawater desalted water is led out from the water outlet pipe (9), the water outlet pipe (9) is connected with a water collecting tank through a pipeline, and the led seawater desalted water is sent into the water collecting tank for standby.
2. The seawater desalination and mineralization integrated system as claimed in claim 1, wherein the seawater desalination and mineralization integrated system is used by precipitating from a seawater reservoir, purifying to remove impurities from seawater, delivering the seawater desalination water to a mineralization chamber through a delivery pipeline, flowing from a water inlet pipe (1) at the upper part of the mineralization chamber into the upper part of a mineralization chamber front chamber of the mineralization chamber, moving the seawater desalination water from top to bottom through a mineralization filler layer (3) arranged in the mineralization chamber front chamber, mineralizing the seawater desalination water with the filler of the mineralization filler layer (3) in the process of moving from top to bottom, aerating the mineralization filler layer (3) at the mineralization chamber front chamber from an air inlet pipe (10) of an isolation diaphragm capsule (4) arranged in the mineralization filler layer (3), pumping carbon dioxide gas from a carbon dioxide gas tank to the isolation diaphragm capsule (4), the seawater desalted water is in contact reaction with carbon dioxide gas, so that the calcium ion content and the alkalinity of the seawater desalted water are improved;
when the seawater desalinated water flows through each group of isolation diaphragm capsules (4), the hollow fiber membranes (12) in the isolation diaphragm capsules (4) release carbon dioxide gas to the seawater desalinated water flowing through the mineralization filler layer (3), aeration is carried out, and the exposed carbon dioxide reacts with the mineralization filler and the seawater desalinated water in a contact manner, so that the calcium ion content and the alkalinity of the seawater desalinated water are improved;
the seawater desalted water enters the front chamber of the mineralization chamber from the water inlet pipe (1), moves downwards along with the self gravity of the seawater desalted water, passes through the through hole of the bottom plate of the mineralization chamber at the bottom of the front chamber of the mineralization chamber, enters the transition front chamber of the transition chamber, flows into the transition rear chamber from the connecting pipe of the transition chamber along with the continuous inflow of the seawater desalted water in the transition front chamber, the seawater desalted water in the transition front chamber accumulates in the transition rear chamber, the water level of the seawater desalted water continuously rises, the seawater desalted water in the front chamber of the mineralization chamber continuously enters the transition front chamber, the water pressure of the seawater desalted water in the transition front chamber continuously rises, the seawater desalted water in the transition rear chamber is pushed to pass through the through hole of the bottom plate of the mineralization chamber, enters the rear chamber of the mineralization chamber to move upwards, the seawater desalted water flows through the mineralization filler layer (3) arranged in the rear chamber of, when mineralization is carried out, aerating is carried out on the mineralization packing layer (3) of the front chamber of the mineralization chamber from an air inlet pipe (10) of an isolation diaphragm capsule (4) arranged in the mineralization packing layer (3), carbon dioxide gas is pumped from a carbon dioxide gas tank to be input into the isolation diaphragm capsule (4), seawater desalination water is in contact reaction with the carbon dioxide gas, and the calcium ion content and the alkalinity of the seawater desalination water are increased again;
when the seawater desalted water rises to the top of the rear chamber of the mineralization chamber and flows out of a water outlet pipe (7) of the mineralization chamber to enter the upper part of the drop chamber (6), the seawater desalted water mineralized by the mineralization chamber flows into the drop chamber (6) through the water outlet pipe (7) of the mineralization chamber, the mineralized seawater desalted water falls down from the upper part of the drop chamber (6), drop plates (8) are arranged in the drop chamber (6) from top to bottom, the falling seawater desalted water falls along with the drop plates (8) block by block to form drop falling, a large amount of unreacted carbon dioxide in the seawater desalted water is removed from the seawater desalted water in the drop chamber (6), the oxygen content in the seawater desalted water is increased, and the pH value of the seawater desalted water after the drop can be greatly increased to 7;
when the seawater desalinated water moves to the lower part of the falling chamber (6), the seawater desalinated water after falling is led out from a water outlet pipe (9) arranged at the lower part of the falling chamber (6), the water outlet pipe (9) is connected with a water collecting tank through a pipeline, and the led seawater desalinated water is sent into the water collecting tank for standby.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710187030.1A CN106904721B (en) | 2017-03-27 | 2017-03-27 | Seawater desalination and mineralization integrated system and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710187030.1A CN106904721B (en) | 2017-03-27 | 2017-03-27 | Seawater desalination and mineralization integrated system and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106904721A CN106904721A (en) | 2017-06-30 |
| CN106904721B true CN106904721B (en) | 2020-08-18 |
Family
ID=59194498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710187030.1A Active CN106904721B (en) | 2017-03-27 | 2017-03-27 | Seawater desalination and mineralization integrated system and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106904721B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109987753A (en) * | 2019-05-22 | 2019-07-09 | 华电水务工程有限公司 | A kind of method of desalination water tempering system and regulating water quality |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826689A (en) * | 2012-09-18 | 2012-12-19 | 杭州水处理技术研究开发中心有限公司 | Post-treatment process and equipment of desalted seawater |
| CN102897945A (en) * | 2012-08-01 | 2013-01-30 | 天津科技大学 | Method for mineralizing seawater desalted water |
| EP2565165A1 (en) * | 2011-08-31 | 2013-03-06 | Omya Development AG | Remineralization of desalinated and of fresh water by dosing of a calcium carbonate solution in soft water |
| CN105263870A (en) * | 2013-05-24 | 2016-01-20 | Omya国际股份公司 | Installation for the preparation of a solution of calcium hydrogen carbonate suitable for the remineralization of water |
| CN205115173U (en) * | 2015-10-15 | 2016-03-30 | 天津科技大学 | System is equipped to seawater desalination water mineralize mineralization |
| EP3050852A1 (en) * | 2015-01-29 | 2016-08-03 | Omya International AG | Process for manufacturing a solution of an earth alkali hydrogen carbonate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2823499B1 (en) * | 2001-04-12 | 2004-02-27 | Vivendi Water Systems | PROCESS FOR THE REMINERALIZATION OF RAW WATER |
-
2017
- 2017-03-27 CN CN201710187030.1A patent/CN106904721B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2565165A1 (en) * | 2011-08-31 | 2013-03-06 | Omya Development AG | Remineralization of desalinated and of fresh water by dosing of a calcium carbonate solution in soft water |
| CN102897945A (en) * | 2012-08-01 | 2013-01-30 | 天津科技大学 | Method for mineralizing seawater desalted water |
| CN102826689A (en) * | 2012-09-18 | 2012-12-19 | 杭州水处理技术研究开发中心有限公司 | Post-treatment process and equipment of desalted seawater |
| CN105263870A (en) * | 2013-05-24 | 2016-01-20 | Omya国际股份公司 | Installation for the preparation of a solution of calcium hydrogen carbonate suitable for the remineralization of water |
| EP3050852A1 (en) * | 2015-01-29 | 2016-08-03 | Omya International AG | Process for manufacturing a solution of an earth alkali hydrogen carbonate |
| CN205115173U (en) * | 2015-10-15 | 2016-03-30 | 天津科技大学 | System is equipped to seawater desalination water mineralize mineralization |
Non-Patent Citations (2)
| Title |
|---|
| CO2-石灰再矿化技术在饮用水厂的应用研究;宋卫阳;《万方数据库》;20121224;第1-74页 * |
| CO2酸化海水淡化水接触式矿化研究;李喆等;《供水技术》;20150630;第9卷(第3期);第28-30页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106904721A (en) | 2017-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20220010633A1 (en) | System and method for treating water | |
| CN105481168B (en) | Coal gasification wastewater integrated conduct method | |
| AU2010293661B2 (en) | Fresh water production method and fresh water production device | |
| SA110320023B1 (en) | Osmotic Separation Systems and Methods | |
| CN106904716B (en) | Seawater desalination water mineralization system and manufacturing method thereof | |
| US10486113B2 (en) | Fluid distribution device for a gas-liquid contactor, gas-liquid contactor and method for adding a gas to a liquid | |
| CN214571316U (en) | Zero discharge system for treating negative hard mine water by crystallization granulation softening coupling membrane method | |
| CN102730816A (en) | Airlift external tubular membrane bioreactor purifier | |
| CN106458651A (en) | Ultrapure water production apparatus and ultrapure water production method | |
| Backer et al. | Brine solution: Current status, future management and technology development | |
| CN106904721B (en) | Seawater desalination and mineralization integrated system and use method thereof | |
| US20160272513A1 (en) | Brine mining process | |
| CN204039126U (en) | A kind of membrane bioreactor | |
| CN102335524A (en) | Method and device for separating volatile matters from liquid and application thereof | |
| CN102557194B (en) | Film method aeration industrial flue gas desulfurization seawater recovery process | |
| CN201648139U (en) | Pure water production equipment with high recovery ratio | |
| JP2018089564A (en) | Biological activated carbon treatment device | |
| CN216236582U (en) | Concentrated water denitrification processing apparatus of MABR reverse osmosis | |
| KR20170131739A (en) | System and method of desalination of lava seawater and extraction valuable mineral from lava seawater | |
| CN215250007U (en) | Full-automatic high-purity water preparation equipment | |
| KR20170023238A (en) | System for producing reusable water from waste water and method using the same | |
| CN204999692U (en) | Fall STREAMING and mix packing layer anaerobic ammonium oxidation bioreactor | |
| CN104591485B (en) | A kind of pulping wastewater treatment and reuse technology | |
| CN210133954U (en) | Continuous reactor for treating wet desulphurization wastewater | |
| CN208279408U (en) | Sea water desalination water mineralising integral system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |