CN109942039B - Method for recycling and purifying salt-washing wastewater - Google Patents
Method for recycling and purifying salt-washing wastewater Download PDFInfo
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- CN109942039B CN109942039B CN201910243687.4A CN201910243687A CN109942039B CN 109942039 B CN109942039 B CN 109942039B CN 201910243687 A CN201910243687 A CN 201910243687A CN 109942039 B CN109942039 B CN 109942039B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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Abstract
The invention discloses a method for recovering and purifying salt washing wastewater, which is characterized in that salt water after salt washing is recovered, the recovered salt water is divided into two parts, one part of salt water is evaporated to separate out salt, water is evaporated to be hot steam and is introduced into a fertilizer mixing box to heat a fertilizer, the other part of salt water is pressurized in a purifying chamber through a high-pressure air pump so that the filtered water enters the fertilizer mixing box through an RO reverse osmosis membrane, the salt and heavy metal ions in the salt water are filtered out, the filtered water is mixed with the fertilizer, the airflow for heating the fertilizer is pumped out to enter a condensing chamber to be condensed into water flow and then is used for washing salt on the land again, the salt water after salt washing is purified and recycled, and a water tank is not required to be added again to mix the fertilizer with water and fertilizer.
Description
Technical Field
The invention relates to the technical field of water purification and recovery, in particular to a method for recovering and purifying salt-washing wastewater.
Background
Saline-alkali soil means that salt contained in soil influences normal growth of crops, various saline-alkali soils are formed under certain natural conditions, and the essence of the formation is that various easily soluble salts are redistributed in the ground working direction and the vertical direction, so that the salt is gradually accumulated on the soil surface layer of a salt collecting region; the salinization of soil seriously influences the growth of crops, and currently, the saline-alkali soil reformation aspect of China mainly comprises a terrace method, a soil reclamation method, a drainage method, a salt washing method, a chemical method, a biological method and the like; wherein, the drainage salt washing is to introduce fresh water to dissolve the salt in the soil and drain the salt through a drainage system; at present, the discharged brine is generally discharged into a reservoir after salt washing, but the research on land utilization of the discharged brine after salt washing is not carried out in the prior art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for recovering and purifying the salt washing wastewater, which is used for recovering and purifying the salt water discharged after salt washing, saving water resources and circularly washing the salt in the saline-alkali soil.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for recovering and purifying the waste water generated by washing salt includes such steps as cleaning the waste water by a purifier, which has a water-storing settling pool with drainage ditch, a motor on the external surface of side wall of said water-storing settling pool, a drive axle of said motor connected to a rotary axle, and axle connecting holes on both side walls of said water-storing settling pool.
Further, purifier still includes the automobile body, and the bottom of automobile body is provided with the walking wheel, and the front portion of automobile body is provided with the drinking-water pipe, and the one end of drinking-water pipe stretches into in the cistern, and the other end setting of drinking-water pipe is in the water storage tank, and the lower extreme of water storage tank is provided with water storage chamber I and water storage chamber II, and the one end setting of drinking-water pipe in the water storage tank is in the upper end of water storage chamber and is provided with water jet I and water jet II, corresponds water storage chamber I and water storage chamber II respectively, is provided with water pump I on the drinking-water pipe.
Further, be provided with delivery port I on the lateral wall of water chamber I, delivery port I is connected with the one end of outlet pipe I, the other end and the distillation chamber of outlet pipe I are connected, be provided with outlet valve I on the outlet pipe I, be provided with heating device in the distillation chamber, the top of distillation chamber is provided with the gas outlet and is connected with the outlet duct, the other end and the mixed fertilizer case upper end of outlet duct are connected, be provided with the air outlet valve on the outlet duct, be provided with delivery port II on the lateral wall of water chamber II, the one end of delivery port II and outlet pipe II is connected, the other end and the clean room of outlet pipe II are connected.
Furtherly, the upper end of clean room is provided with high compression pump, and high compression pump passes through the breather pipe to be connected with the clean room, and the lower wall of clean room comprises RO reverse osmosis membrane, and RO reverse osmosis membrane's lower extreme is connected with out the water bucket, and the bottom of going out the water bucket is connected with outlet pipe III, is provided with outlet valve III on the outlet pipe III, and the other end of outlet pipe III is connected with on the mixed fertilizer case.
Further, the lower extreme of mixing fertile case is provided with the outlet duct, is provided with the air outlet valve on the outlet duct, and the other end and the condensation chamber of outlet duct are connected, and the lower extreme of condensation chamber is connected with outlet pipe III, and the other end of outlet pipe III is connected with the water storage box, and one side of water storage box is connected with the water outlet header pipe, and the water outlet header pipe is connected with out water and violently manages, goes out water and violently manages and be provided with a plurality of spouts on the pipe.
Further, the fertilizer comprises amino acid, urea, potassium carbonate and plant ash, when water in the distillation chamber is pumped out for irrigation, the ground is irrigated for three times every day, each time of irrigation is carried out for 30 minutes, and a temperature sensor is arranged in the fertilizer mixing box and can sense the temperature in the fertilizer mixing box.
The method for recovering and purifying the salt-washing wastewater comprises the following steps: the first step is as follows: carry out PH to the saline and alkaline land and detect, it is final PH value to take its mean value after detecting the cubic, dig many escape canals on saline and alkaline land after detecting, wash the salt discharge with many water pipes to the saline and alkaline land, water after washing gets into the retaining sedimentation tank through the escape canal and collects, wash the cubic to the saline and alkaline land every day, last twenty minutes, last washing three days after, purify with salt washing wastewater recovery purifier, this salt washing wastewater recovery purifier includes the retaining sedimentation tank, including a motor, an isolation net, the drinking-water pipe, the water storage tank, the distillation chamber, the high compression pump, the clean room, mix fertile case, the condensation chamber, the water storage box.
The second step: many escape canals are connected with the retaining sedimentation tank, the lateral wall outside of retaining sedimentation tank is provided with the motor, the transmission shaft and the rotation axis of motor are connected, the axis of rotation crosses the retaining sedimentation tank through the hole on the cistern both sides wall, the intermediate junction of axis of rotation has the separation net, when waste water discharges into the retaining sedimentation tank, the starter motor drives the axis of rotation and rotates, the axis of rotation drives the separation net upwards to overturn, make the separation net parallel with the lateral wall of retaining sedimentation tank, the bottom at the waste water sedimentation tank is precipitated to the bold debris in the waste water, the restart motor drives the axis of rotation after stopping intaking again, make the separation net rotate downwards and be parallel with the diapire of retaining sedimentation tank, the length slightly is less than the width between the wall of sedimentation tank both sides during separation net and diapire are parallel.
The third step: open on the drinking-water pipe and deposit the water tank with the water suction in the retaining sedimentation tank in, through two different water jet I and water jet II with water injection deposit hydroecium I and deposit hydroecium II in, open the valve on outlet pipe I, pass through I suction distillation rooms of outlet pipe with the water in the deposit hydroecium I, distillation through the distillation room is gaseous with the evaporation of water, open the valve on the outlet duct, pass through the leading-in muddy fertile case of outlet duct with the gas in the distillation room, fertilizer in the fertilizer case heats, gas after will heating passes through the exhaust tube suction condensation chamber with gaseous condensation, water after the condensation is through a water header pipe and a water outlet violently manage and irrigate the soil once more.
The fourth step: open the valve on the outlet pipe II, pass through II leading-in clean rooms of outlet pipe with the water in the water storage room II, clean room side limit is provided with the RO reverse osmosis membrane, makes the water after the filtration pass through RO reverse osmosis membrane and gets into and mix fertile case to the clean room pressurization, filters salinity and heavy metal ion in the salt solution, makes the water after the filtration mix with fertilizer.
Compared with the prior art, the invention provides a method for recovering and purifying the salt-washing wastewater, which has the following beneficial effects:
the salt water after salt washing is recovered, the recovered salt water is divided into two parts, one part of salt water is evaporated to separate out salt, water is evaporated into hot steam and is introduced into the fertilizer mixing box to heat the fertilizer, the other part of salt water is pressurized in the purifying chamber through the high-pressure air pump so that the filtered water enters the fertilizer mixing box through the RO reverse osmosis membrane, the salt and heavy metal ions in the salt water are filtered out, the filtered water is mixed with the fertilizer, the airflow for heating the fertilizer is pumped out to enter the condensing chamber to be condensed into water flow, then the salt washing is carried out on the land again, the salt water after salt washing is purified and recycled, and the water tank does not need to be added again to mix the water and the fertilizer.
Drawings
FIG. 1 is a schematic view of a purification structure according to the present invention.
FIG. 2 is a schematic view of an isolation net of the present invention.
In the figure: 1-a water storage sedimentation tank, 2-a drainage ditch, 3-an isolation net, 4-a water pumping pipe, 5-a water storage tank, 6-a water spraying port I, 7-a water spraying port II, 8-a water storage chamber I, 9-a water storage chamber II, 10-a water outlet pipe I, 11-a distillation chamber, 12-a gas outlet pipe, 13-a water outlet pipe II, 14-a high-pressure air pump, 15-a purification chamber, 16-a water outlet hopper, 17-a fertilizer mixing tank, 18-a condensation chamber, 19-a water storage tank, 20-a water outlet main pipe, 21-a water outlet transverse pipe, 22-a motor and 23-a rotating shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the figures 1-2, the method for recycling and purifying the salt-washing wastewater comprises the following steps of A, carrying out pH detection on saline-alkali soil, taking the average value of the pH value as the final pH value after three times of detection, digging a plurality of drainage ditches on the saline-alkali soil after the detection, flushing the saline-alkali soil by using a plurality of water pipes to remove salt, enabling the flushed water to enter a water storage sedimentation tank 1 through the drainage ditches 2 to be collected, flushing the saline-alkali soil three times every day, lasting twenty minutes every time, and purifying by using a salt-washing wastewater recycling and purifying device after the continuous flushing for three days, wherein the salt-washing wastewater recycling and purifying device comprises a water storage sedimentation tank 1, a motor 22, an isolation net 3, a water pumping pipe 4, a water storage tank 5, a distillation chamber 11, a high-pressure air pump 14, a purifying chamber 15, a fertilizer mixing tank 17, a condensation chamber 18 and a water storage tank 19.
And step B, connecting a plurality of drainage ditches with the water storage sedimentation tank 1, arranging a motor 22 outside the side wall of the water storage sedimentation tank 1, connecting a transmission shaft of the motor 22 with a rotating shaft 23, enabling the rotating shaft 23 to transversely penetrate through the water storage sedimentation tank 1 through holes in the two side walls of the water storage tank, connecting an isolation net 3 in the middle of the rotating shaft 23, starting the motor 22 to drive the rotating shaft 23 to rotate when the wastewater is discharged into the water storage sedimentation tank, enabling the rotating shaft 23 to drive the isolation net 3 to upwards overturn to enable the isolation net 3 to be parallel to the side wall of the water storage sedimentation tank 1, enabling large sundries in the wastewater to be precipitated at the bottom of the wastewater sedimentation tank, restarting the motor to drive the rotating shaft to rotate after water feeding is stopped, enabling the isolation net 3 to downwards rotate to be parallel to the bottom wall of the water storage sedimentation tank 1, and enabling the length of the isolation net 3 to be slightly smaller than the width between the two side walls of the sedimentation tank 1 when the isolation net is parallel to the bottom wall.
And step C, opening a water pumping pipe 4 to pump water in the water storage sedimentation tank 1 into a water storage tank 5, injecting water into a water storage chamber I (8) and a water storage chamber II (9) through two different water spraying ports I (6) and II (7), opening a valve on a water outlet pipe I (10), pumping water in the water storage chamber I (8) into a distillation chamber 11 through the water outlet pipe I (10), evaporating water into gas through distillation of the distillation chamber 11, opening a valve on a gas outlet pipe 12, guiding the gas in the distillation chamber 11 into a fertilizer mixing box 17 through the gas outlet pipe 12, heating the fertilizer in the fertilizer box 17, pumping the heated gas into a condensation chamber 18 through a gas pumping pipe to condense the gas, and irrigating the land again through the condensed water through a main water outlet pipe 20 and a transverse water outlet pipe 21.
Step D: open the valve on the outlet pipe II, pass through the leading-in clean room 15 of outlet pipe II (13) with the water in the water storage room II (9), the 15 sides of clean room are provided with the RO reverse osmosis membrane, make the water after the filtration pass through RO reverse osmosis membrane entering and mix fertile case 17 to 15 pressurizations of clean room, filter salinity and heavy metal ion in the salt solution, make the water after the filtration mix with fertilizer.
Claims (2)
1. A method for recycling and purifying salt-washing wastewater is characterized by comprising the following steps: the method comprises the following steps: the first step is as follows: carrying out pH detection on the saline-alkali soil, taking the average value of the pH value as the final pH value after three times of detection, digging a plurality of drainage ditches on the saline-alkali soil after the detection, flushing the saline-alkali soil with a plurality of water pipes for salt removal, flushing the saline-alkali soil three times every day, wherein each time lasts twenty minutes, and after three days of flushing, purifying the saline-alkali soil with a saline-washing wastewater recovery and purification device, wherein the saline-washing wastewater recovery and purification device comprises a water storage sedimentation tank, a motor, an isolation net, a water pumping pipe, a water storage tank, a distillation chamber, a high-pressure air pump, a purification chamber, a fertilizer mixing tank, a condensation chamber and a water storage tank;
the second step is that: the flushed water enters a water storage sedimentation tank through a drainage ditch to be collected, a motor is arranged on the outer side of the side wall of the water storage sedimentation tank, a transmission shaft of the motor is connected with a rotating shaft, the rotating shaft penetrates through the water storage sedimentation tank through holes in the two side walls of a water storage tank, an isolation net is connected in the middle of the rotating shaft, when the wastewater is discharged into the water storage sedimentation tank, the motor is started to drive the rotating shaft to rotate, the rotating shaft drives the isolation net to turn upwards, so that the isolation net is parallel to the side walls of the water storage sedimentation tank, large sundries in the wastewater are precipitated at the bottom of the wastewater sedimentation tank, the motor is started again to drive the rotating shaft to rotate after the water inlet is stopped, so that the isolation net rotates downwards and is parallel to the bottom wall of the water storage sedimentation tank, and the length of the isolation net parallel to the bottom wall is slightly smaller than the width between the two side walls of the sedimentation tank;
the third step: the method comprises the following steps of (1) starting a water pumping pipe to pump water in a water storage sedimentation tank into a water storage tank, injecting water into a water storage chamber I and a water storage chamber II through two different water spraying ports I and II, starting a valve on a water outlet pipe I, pumping the water in the water storage chamber I into a distillation chamber through the water outlet pipe I, evaporating water into gas through distillation of the distillation chamber, opening a valve on a gas outlet pipe, introducing the gas in the distillation chamber into a fertilizer mixing tank through the gas outlet pipe, heating fertilizer in the fertilizer tank, pumping the heated gas into a condensation chamber through a gas pumping pipe to condense the gas, and irrigating the land again through a main water outlet pipe and a transverse water outlet pipe;
the fourth step: open the valve on the outlet pipe II, water in the water storage chamber II is led into the clean room through outlet pipe II, clean room side limit is provided with RO reverse osmosis membrane, pressurize the clean room and make the water after filtering pass through RO reverse osmosis membrane and get into and mix fertile case, filter salinity and heavy metal ion in the salt solution, make the water after filtering and fertilizer mix, fertilizer includes amino acid, urea, potassium carbonate, the plant ash, when taking the water in the distillation chamber out and irrigating, carry out the cubic to ground every day and irrigate 30 minutes at every turn.
2. The method for recovering and purifying the salt-washing wastewater as claimed in claim 1, wherein the method comprises the following steps: the fertilizer mixing box is provided with a temperature sensor which can sense the temperature in the fertilizer mixing box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910243687.4A CN109942039B (en) | 2019-03-28 | 2019-03-28 | Method for recycling and purifying salt-washing wastewater |
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| CN201910243687.4A CN109942039B (en) | 2019-03-28 | 2019-03-28 | Method for recycling and purifying salt-washing wastewater |
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| CN109942039A CN109942039A (en) | 2019-06-28 |
| CN109942039B true CN109942039B (en) | 2022-07-08 |
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| CN114793522B (en) * | 2022-03-31 | 2023-09-22 | 江苏大学 | A soil washing brine recycling system and method using electro-adsorption combined with condensation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202208671U (en) * | 2011-09-06 | 2012-05-02 | 江苏中圣高科技产业有限公司 | Zero-discharge recovery system for salt-containing wastewater |
| CN207130076U (en) * | 2017-07-28 | 2018-03-23 | 江苏省冶金设计院有限公司 | A kind of brine waste processing system |
| CN207498244U (en) * | 2017-11-20 | 2018-06-15 | 杭州恒畅环保科技有限公司 | A kind of processing unit for high-sulfate organic wastewater |
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- 2019-03-28 CN CN201910243687.4A patent/CN109942039B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202208671U (en) * | 2011-09-06 | 2012-05-02 | 江苏中圣高科技产业有限公司 | Zero-discharge recovery system for salt-containing wastewater |
| CN207130076U (en) * | 2017-07-28 | 2018-03-23 | 江苏省冶金设计院有限公司 | A kind of brine waste processing system |
| CN207498244U (en) * | 2017-11-20 | 2018-06-15 | 杭州恒畅环保科技有限公司 | A kind of processing unit for high-sulfate organic wastewater |
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