CN106894194B - Method for treating washing water by using flocculating agent and flocculation washing machine - Google Patents
Method for treating washing water by using flocculating agent and flocculation washing machine Download PDFInfo
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- CN106894194B CN106894194B CN201510957542.2A CN201510957542A CN106894194B CN 106894194 B CN106894194 B CN 106894194B CN 201510957542 A CN201510957542 A CN 201510957542A CN 106894194 B CN106894194 B CN 106894194B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 184
- 238000005406 washing Methods 0.000 title claims abstract description 181
- 239000008394 flocculating agent Substances 0.000 title claims abstract description 124
- 230000016615 flocculation Effects 0.000 title claims abstract description 77
- 238000005189 flocculation Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000001514 detection method Methods 0.000 claims abstract description 46
- 230000008569 process Effects 0.000 claims description 13
- 239000000701 coagulant Substances 0.000 claims description 10
- 125000000129 anionic group Chemical group 0.000 claims description 8
- 125000002091 cationic group Chemical group 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 239000003792 electrolyte Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000003599 detergent Substances 0.000 abstract description 9
- 230000005611 electricity Effects 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000010865 sewage Substances 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 239000003093 cationic surfactant Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000003311 flocculating effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/22—Condition of the washing liquid, e.g. turbidity
-
- D06F2202/02—
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a method for treating washing water by using a flocculating agent and a flocculation washing machine, wherein the method comprises the following steps: and (4) carrying out turbidity detection on the washed washing water to determine a turbidity value n of the washing water, and determining the adding amount of the flocculating agent according to the turbidity value n. The flocculation washing machine is provided with a turbidity detection device on the water containing barrel or the flocculation container, the turbidity detection device carries out turbidity detection on washing water after washing is completed to determine a turbidity value n of the washing water, and a control system on the flocculation washing machine determines the putting amount of the flocculating agent according to the turbidity value n. The accurate determination of the feeding amount of the flocculating agent is ensured, the implementation is facilitated, and the problems of water and electricity waste and the like caused by insufficient or excessive feeding of the flocculating agent in the prior art are solved. In addition, in order to achieve better flocculation treatment effect, two or more than two flocculating agents are respectively added, so that the flocculation reaction efficiency and the removal rate of the components of the detergent particles can be further improved.
Description
Technical Field
The invention relates to the technical field of washing machines, in particular to a washing machine water treatment technology, and especially relates to a method for treating washing water by adopting a flocculating agent and a flocculation washing machine applying the method.
Background
With the improvement of living standard of people, a washing machine is one of the main household appliances in daily life, the washing process of the washing machine mainly comprises several stages of washing, rinsing and spin-drying, the washing machine enters water and detergent to wash clothes in the washing stage, after the washing stage, in order to rinse stains and residual detergent, more water needs to be fed or more rinsing times needs to be carried out to rinse the clothes, which consumes a large amount of water resources, even though the washing machine is a water-saving drum washing machine, the washing machine needs to be rinsed at least twice for rinsing the clothes, and the process consumes at least more than 30L of tap water. Sometimes, the clothes are less in stain or less in detergent, and the clothes can be rinsed clean twice, but since the user selects 3 times of rinsing, waste of water resources is caused, for example, the water consumption of twice rinsing water of a 6Kg full-automatic washing machine is about 100 liters. How to save water while washing clothes is one of the focuses of consumer attention, so many manufacturers develop and popularize a series of washing machines with water circulation treatment.
One of the methods of treating the washing water is a flocculation treatment method in which a flocculant is used to flocculate the contaminants contained in the sewage, so that the contaminants in the sewage are separated from the water. The sewage treatment mode is efficient, environment-friendly, energy-saving and low in cost. Therefore, the mode of combining the flocculation treatment sewage with the washing machine to generate a new circulating water washing machine becomes an innovative hotspot.
For example, the prior application of the applicant, the invention patent with the application number of CN201410028294.9, discloses a control method of a washing machine and a washing machine, wherein the control method comprises the steps of carrying out turbidity detection on washing water after washing is finished to determine a turbidity value P of the washing water, and determining the flocculation cycle number N of the washing water according to the turbidity value P of the washing water. The washing machine determines the basic flocculation cycle number N1 of the washing water according to the water inflow L of the washing water; and determining the variable flocculation cycle number N2 according to the turbidity value P of the washing water to obtain the flocculation cycle number N of the washing water which is N1+ N2. The washing machine includes: the device comprises a water containing barrel, a washing structure arranged in the water containing barrel and a flocculation treatment unit arranged outside the water containing barrel; the flocculation treatment unit is used for generating clean water after the flocculation cleaning treatment of the flocculation water in the flocculation container, and discharging the clean water into the water containing cylinder again for reuse when the washing machine is rinsed. By the method and the device, the flocculation cycle times of the washing machine are accurately controlled, and the flocculation self-cleaning efficiency of the washing water is improved.
Also, for example, the invention patent with the application number of CN201410026926.8 discloses a control method of a flocculation washing machine and the washing machine, wherein the control method comprises the steps of obtaining the water inflow L of washing water of the washing machine, and determining at least one of the input amount a of a flocculating agent, the single flocculation water inflow V and the flocculation cycle number N according to the water inflow L. The washing machine includes: the device comprises a water containing barrel, a washing structure arranged in the water containing barrel and a flocculation treatment unit arranged outside the water containing barrel; the flocculation treatment unit is used for generating clean water after the flocculation cleaning treatment of the flocculation water in the flocculation container, and discharging the clean water into the water containing cylinder again for reuse when the washing machine is rinsed. The invention realizes the accurate control of the flocculation program of the washing machine and improves the flocculation self-cleaning efficiency of the washing water by the method and the device.
The above patent applications all control parameters such as flocculation cycle times through turbidity values or water inflow, but do not improve the feeding control of the flocculant, and the feeding amount of the flocculant is an important link for determining the flocculation treatment of the washing water. The method is characterized in that the method comprises the steps of adding a flocculating agent into washing water, and then adding a flocculating agent into the washing water, wherein the flocculating agent is added into the washing water, and the flocculating agent is added into the washing water, so that the flocculating agent is added into the washing water, and the flocculating agent is added into the washing water.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
In view of the disadvantages of the prior art, a first object of the present invention is to provide a method for treating wash water with a flocculant, which can precisely control the amount of the flocculant to be added.
In order to realize the first invention, the following technical scheme is adopted:
a method of treating wash water with a flocculant, the method comprising: and (4) carrying out turbidity detection on the washed washing water to determine a turbidity value n of the washing water, and determining the adding amount of the flocculating agent according to the turbidity value n. The flocculation washing machine is provided with a turbidity detection device on the water containing barrel or the flocculation container, the turbidity detection device carries out turbidity detection on washing water after washing is completed to determine a turbidity value n of the washing water, and a control system on the flocculation washing machine determines the putting amount of the flocculating agent according to the turbidity value n. The accurate determination of the feeding amount of the flocculating agent is ensured, the implementation is facilitated, and the problems of water and electricity waste and the like caused by insufficient or excessive feeding of the flocculating agent in the prior art are solved.
Preferably, the turbidity value n of the washing water is detected in the process of adding the flocculant, and whether the adding amount of the flocculant meets the standard or not is judged according to the turbidity value n.
Preferably, the method for judging whether the adding amount of the flocculating agent meets the standard according to the turbidity value n comprises the following steps: and when the detected turbidity value n of the washing water is less than 15NTU, judging that the input amount meets the standard.
Preferably, the charge amount q of the washing water is detected during the flocculant feeding process, and whether the feeding amount of the flocculant meets the standard or not is judged according to the charge amount q. The scheme can replace the scheme for determining the adding amount of the flocculating agent according to the turbidity value n, and can also determine the adding amount of the flocculating agent by cooperating with the turbidity value n.
Preferably, the method for judging whether the adding amount of the flocculating agent is accurate or not according to the charge amount q comprises the following steps: the detection system of the washing water is provided with a residual charge standard value A, the residual charge alpha of the washing water is detected in the flocculation treatment process, and when | alpha | is less than A, the system judges that the input amount of the flocculating agent meets the standard.
Preferably, the method for judging whether the adding amount of the flocculating agent is accurate or not according to the charge amount q comprises the following steps: measuring the intensity of residual charge in water by using a streaming potential on-line sensor, and when a measurement signal is positive, indicating that positive charge in water is excessive and a flocculating agent is excessively added; the measurement signal is negative, which indicates that the negative charge in the water is excessive and the flocculating agent is not sufficiently put in the water; when the measuring signal is zero, the water is in an electric neutral state, and the adding amount of the flocculating agent is the adding amount judged according to the turbidity value n.
Preferably, a turbidity value standard value N and a charge quantity standard value Q are arranged on a detection system of the washing water, and the turbidity value and the charge quantity are detected after the flocculating agent is put in for the first time: when N is greater than 2N or Q is greater than 2Q, adding the flocculating agent again, wherein the amount of the flocculating agent added again is the same as the first adding amount; when 1.2N is less than N and less than 2N or 1.2Q is less than Q and less than 2Q, the flocculating agent is added again, the amount of the flocculating agent added again is gamma times of the previous adding amount, and gamma is more than 0 and less than 1. And further optimizing a flocculant adding program.
Preferably, at least two or more kinds of flocculants are added to the washing water to flocculate the washing water. The efficiency of the flocculation reaction and the removal rate of components of the detergent granules can be further improved by using two or even more than two flocculating agents to perform targeted treatment on different components in the washing water.
Preferably, the two or more flocculating agents comprise an electrolyte flocculating agent and a polymer coagulate. More preferably, the two or more flocculants further include a cationic surfactant, a carbonate buffer. Since the effective components for treating the detergent residue are difficult to be present in the conventional flocculating agent, the residue can be completely removed by using the above flocculating agent. The electrolyte flocculant and the polymer aggregate are separately dosed to avoid that certain combinations may react with each other, thereby reducing the respective effectiveness.
Preferably, the two or more flocculating agents comprise a cationic liquid coagulant and an anionic flocculating agent, and in the flocculating agent adding process, the cationic liquid coagulant is added firstly, and then the anionic flocculating agent is added. The cationic liquid coagulant mainly removes dirty particles, so that washing water is clarified; the anionic flocculant has higher molecular weight and is used as a coagulant aid to promote the growth of floccules and increase the size of the floccules, so that the floccules can settle or float more quickly.
Preferably, the flocculating agent is put in batches, the putting amount of the flocculating agent is determined every time according to the turbidity value n, and after flocculation, the turbidity of the washing water is detected again to judge whether the next putting is carried out. Preferably, the adding amount of the flocculating agent for the first time is a preset fixed amount, after the flocculating agent is stirred and flocculated for the first time, the turbidity value n1 is detected, if the turbidity value n1 meets the standard, the flocculation is completed, and if the turbidity value n1 does not meet the standard, the adding amount of the flocculating agent for the next time is determined. Or, the first-time dosing of the flocculating agent is also determined according to the turbidity value n.
Preferably, at least two or more kinds of flocculants are added to the washing water to flocculate the washing water, and one flocculant is added each time when the flocculants are added in batches.
Another object of the present invention is to provide a method for treating wash water with a flocculant, the method comprising: and detecting the washing water after washing is finished to determine a turbidity value n and/or a charge amount q of the washing water, and determining the adding amount of the flocculating agent according to the turbidity value n and/or the charge amount q. The flocculation washing machine is provided with a turbidity detection device and/or a floating potential on-line sensor on a water containing barrel or a flocculation container, the turbidity detection device performs turbidity detection on washing water after washing to determine a turbidity value n of the washing water, the floating potential on-line sensor measures the residual charge intensity in the water, and a control system on the flocculation washing machine determines the adding amount of a flocculating agent according to the turbidity value n and/or the charge amount q.
Preferably, the flocculating agent is put in batches, the putting amount of the flocculating agent is determined every time according to the turbidity value n or the electric charge q, and after flocculation, the turbidity or the electric charge of the washing water is detected again to judge whether to put in next time.
Preferably, at least two or more kinds of flocculants are added to the washing water to perform flocculation treatment of the washing water, and one flocculant is added at a time.
Preferably, different detection methods are adopted for different flocculants to judge whether the adding amount meets the standard.
Preferably, the two or more flocculating agents comprise an electrolyte flocculating agent and a polymer coagulate.
The invention also aims to provide a flocculation washing machine applying the method, wherein a turbidity detection device is arranged on a water containing barrel of the flocculation washing machine, the turbidity detection device is used for carrying out turbidity detection on the washed washing water to determine the turbidity value n of the washing water, and a control system of the flocculation washing machine is used for determining the adding amount of the flocculating agent according to the turbidity value n.
Preferably, the flocculation washing machine is further provided with a charge amount detection device, and whether the adding amount of the flocculating agent meets the standard or not is judged according to the detected charge amount q.
After the technical scheme is adopted, the invention has the following beneficial effects: the flocculation washing machine is provided with a turbidity detection device on the water containing barrel or the flocculation container, the turbidity detection device carries out turbidity detection on washing water after washing is completed to determine a turbidity value n of the washing water, and a control system on the flocculation washing machine determines the putting amount of the flocculating agent according to the turbidity value n. The accurate determination of the flocculant adding amount is guaranteed, the implementation is facilitated, and the problems that water and electricity are wasted and clothes are damaged due to insufficient or excessive flocculant adding in the prior art are solved. The method further utilizes the charge quantity or the turbidity value to judge whether the adding quantity of the flocculating agent meets the requirement, so that the accuracy of the adding quantity of the flocculating agent can be better ensured. In addition, in order to achieve better flocculation treatment effect, two or more than two flocculating agents are respectively added, so that the flocculation reaction efficiency and the removal rate of the components of the detergent particles can be further improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic flow diagram of a method for treating wash water with a flocculant according to the present invention.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
A method of treating wash water with a flocculant as shown in figure 1, the method comprising: and (4) carrying out turbidity detection on the washed washing water to determine a turbidity value n of the washing water, and determining the adding amount of the flocculating agent according to the turbidity value n. The flocculation procedure of the washing machine comprises the following specific steps: a. washing water in a water containing barrel of the washing machine flows into the flocculation treatment unit; b, carrying out turbidity detection on the washed washing water to determine a turbidity value of the washing water, judging the adding amount of the flocculating agent according to the turbidity value n, and adding the flocculating agent according to the determined adding amount; c. the washing water and the flocculating agent fully react, the dirt in the washing water is changed into flocculate under the action of the flocculating agent, and the washing water is changed into clean water; d. floating flocculate to the upper surface of clean water; e. the clean water after the flocculation self-cleaning treatment flows back into the water containing cylinder.
The flocculation washing machine is provided with a turbidity detection device on the water containing barrel or the flocculation container, the turbidity detection device carries out turbidity detection on washing water after washing is completed to determine a turbidity value n of the washing water, and a control system on the flocculation washing machine determines the putting amount of the flocculating agent according to the turbidity value n. The accurate determination of the flocculant adding amount is guaranteed, the implementation is facilitated, and the problems that water and electricity are wasted and clothes are damaged due to insufficient or excessive flocculant adding in the prior art are solved.
Example one
In the process of adding the flocculating agent, the flocculating agent with a set amount is added in batches in the flocculating and washing machine of the embodiment, after stirring for a set time, the turbidity value n1 of the washing water is detected, judging whether the feeding amount of the flocculating agent meets the standard or not according to the turbidity value n1, if the turbidity value n1 meets the set value, the adding amount of the flocculating agent meets the standard, standing and layering are carried out, clear water is led back to the water containing cylinder to finish the process of the water flocculation treatment, if the adding amount does not meet the set standard, it is determined from the detected turbidity value n1 that the flocculant of the next set amount is put in correspondence with the turbidity value n1, stirring for a set time corresponding to the time for putting the flocculating agent, detecting the turbidity value n2 of the washing water again, judging whether the putting amount of the flocculating agent meets the standard or not according to the turbidity value n2, repeating the process until the putting amount meets the set standard, standing for layering, guiding the clear water back to the water containing barrel, and finishing the process of flocculating and treating the water.
As a further preferable embodiment of the present invention, the flocculant adding amount and the stirring time after the flocculant is added to the washing machine are related to the turbidity value n detected before the flocculant is added to the washing machine, and are preset corresponding relations, such as a function corresponding relation and a table corresponding relation, for the washing machine.
As a further preferred implementation mode of the embodiment of the invention, the flocculating agent amount put in the washing machine for the first time is a preset value of the washing machine. After the flocculating agent with the set amount is added for the first time, stirring for the set time, detecting the turbidity value n1 of the washing water, and judging whether the adding amount of the flocculating agent in the next time meets the standard or not according to the turbidity value n 1.
As a further preferred implementation manner of the embodiment of the present invention, the method for judging whether the dosing amount of the flocculant meets the standard according to the turbidity value n comprises: and when the detected turbidity value n of the washing water is less than 15NTU, judging that the input amount meets the standard.
Example two
The present embodiment is different from the above embodiments in that the charge amount q of the washing water is detected during the course of adding the flocculant, and whether the addition amount of the flocculant meets the standard is judged based on the charge amount q.
As a further preferable embodiment of the present invention, the method for determining whether or not the amount of flocculant to be added is the standard based on the charge amount q comprises: measuring the intensity of residual charge in water by using a streaming potential on-line sensor, and when a measurement signal is positive, indicating that positive charge in water is excessive and a flocculating agent is excessively added; the measurement signal is negative, which indicates that the negative charge in the water is excessive and the flocculating agent is not sufficiently put in the water; when the measuring signal is zero, the water is in an electric neutral state, and the adding amount of the flocculating agent is the adding amount judged according to the turbidity value n.
In order to optimize the program, the method for judging whether the adding amount of the flocculating agent is accurate or not according to the charge amount q comprises the following steps: the detection system of the washing water is provided with a residual charge standard value A, the residual charge alpha of the washing water is detected in the flocculation treatment process, and when the | alpha | is less than A, the system judges that the input amount of the flocculating agent meets the standard. The standard value A is determined according to the volume or water inflow of the flocculation container.
As a further preferred embodiment of the first and second embodiments of the present invention, a turbidity value standard value N and a charge amount standard value Q are provided in a detection system of the washing water, and the turbidity value and the charge amount are detected after the flocculant is added for the first time: when N is greater than 2N or Q is greater than 2Q, adding the flocculating agent again, wherein the amount of the flocculating agent added again is the same as the first adding amount; when 1.2N < N <2N, or 1.2Q < Q <2Q, the flocculant is dosed again, and the amount of flocculant dosed again is 1/2 of the last dose. And the flocculant adding program is further optimized, and the flocculant adding amount does not need to be determined again after the flocculant is added every time.
EXAMPLE III
In a further preferred embodiment of the present invention, at least two or more kinds of flocculants are added to the washing water during the treatment of the washing water to perform flocculation treatment of the washing water. The efficiency of the flocculation reaction and the removal rate of components of the detergent granules can be further improved by using two or even more than two flocculating agents to perform targeted treatment on different components in the washing water.
As a further preferred embodiment of the invention, the dosing of the flocculating agent in batches is one dosing at a time.
As a further preferable embodiment of the present invention, the amount of flocculant to be added and the stirring time per time set in accordance with the detected turbidity value n are also related to the type of flocculant to be added.
As a further preferred embodiment of an embodiment of the present invention, the two or more flocculants include an electrolyte flocculant and a polymer coagulate.
As a further preferred embodiment of the present invention, the two or more flocculants further include a cationic surfactant and a carbonate buffer. Since the effective components for treating the detergent residue are difficult to be present in the conventional flocculating agent, the residue can be completely removed by using the above flocculating agent. The electrolyte flocculant and the polymer aggregate are separately dosed to avoid that certain combinations may react with each other, thereby reducing the respective effectiveness.
Example four
The difference between the embodiment and the third embodiment lies in the components of the flocculant, the two or more flocculants comprise a cationic liquid coagulant and an anionic flocculant, and in the flocculant adding process, the cationic liquid coagulant is added firstly, and then the anionic flocculant is added. The cationic liquid coagulant mainly removes dirty particles, so that washing water is clarified; the anionic flocculant has higher molecular weight and is used as a coagulant aid to promote the growth of floccules and increase the size of the floccules, so that the floccules can settle or float more quickly.
EXAMPLE five
In this embodiment, the flocculating agent is added in batches according to the combination of the first to third embodiments, the flocculated water is subjected to a detection method matching with the type of the flocculating agent, such as turbidity detection or charge amount detection, according to the type of the flocculating agent, and the type and amount of the flocculating agent to be added next time are determined according to the turbidity value n or the charge amount q. The flocculation washing machine is characterized in that a turbidity detection device and a floating potential on-line sensor are arranged on a water containing barrel or a flocculation container, or the turbidity detection device and the floating potential on-line sensor are arranged in the water containing barrel and the flocculation container one by one, the turbidity detection device carries out turbidity detection on washing water after washing is completed to determine a turbidity value n of the washing water, the floating potential on-line sensor measures the residual charge intensity in the water, and a control system on the flocculation washing machine determines the adding amount of a flocculating agent according to the turbidity value n and/or the charge amount q.
As a further preferred implementation manner of the embodiment of the present invention, the type of the flocculant to be put in for the first time is preset, a matching detection manner is selected according to the type of the flocculant after the first flocculation, and the type and the putting amount of the flocculant to be put in for the next time are determined according to the detection value.
As a further preferred implementation manner of the embodiment of the invention, the flocculating agent dosage for the first time is preset, and the next flocculating agent dosage type and dosage are determined according to the turbidity value n and the charge quantity q.
As a further preferable implementation manner of the embodiment of the invention, after washing is finished, the type and the dosage of the flocculating agent for the first time are determined according to the turbidity value n and the charge quantity q.
The method for treating the washing water by the flocculating agent is not only used for treating the washing water after washing is finished, but also comprises the treatment of the water after each rinsing.
EXAMPLE six
According to the flocculation washing machine adopting the method of the embodiment, the turbidity detection device is arranged on the water containing barrel, the turbidity detection device is used for carrying out turbidity detection on the washing water after washing is finished to determine the turbidity value n of the washing water, and the control system of the flocculation washing machine is used for determining the adding amount of the flocculating agent according to the turbidity value n. The flocculation washing machine is also provided with a charge amount detection device, and whether the adding amount of the flocculating agent meets the standard or not is judged according to the detected charge amount q.
It should be noted that the embodiments in the above-mentioned embodiments can be further combined or replaced, and the embodiments are only used for describing the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and those skilled in the art can make various changes and modifications to the technical solution of the present invention without departing from the design concept of the present invention, and all fall into the protection scope of the present invention.
Claims (9)
1. The utility model provides a method for flocculating agent treatment washing water, its characterized in that, carry out turbidity detection to the washing water after the washing is accomplished and confirm washing water turbidity value N, confirm the input volume of flocculating agent according to turbidity value N, detect the electric charge quantity Q of washing water at the in-process of input flocculating agent, judge whether the input volume of flocculating agent accords with the standard according to electric charge quantity Q, the detecting system of washing water is equipped with turbidity value standard value N, electric charge quantity standard value Q, detect turbidity value and electric charge quantity after the flocculating agent is put in for the first time: when N is greater than 2N or Q is greater than 2Q, adding the flocculating agent again, wherein the amount of the flocculating agent added again is the same as the first adding amount; when 1.2N is less than N and less than 2N or 1.2Q is less than Q and less than 2Q, the flocculating agent is added again, the amount of the flocculating agent added again is gamma times of the previous adding amount, and gamma is more than 0 and less than 1.
2. The method for treating washing water by using flocculant according to claim 1, characterized in that the turbidity value n of the washing water is detected during the flocculant is added, and whether the adding amount of the flocculant meets the standard or not is judged according to the turbidity value n.
3. The method for treating washing water with flocculant according to claim 2, wherein the method for judging whether the amount of flocculant to be added meets the standard or not based on the turbidity value n is as follows: and when the detected turbidity value n of the washing water is less than 15NTU, judging that the input amount meets the standard.
4. The method for treating washing water with flocculant according to claim 1, wherein the method for judging whether or not the amount of flocculant to be added meets the standard based on the amount of charge q is: measuring the intensity of residual charge in water by using a streaming potential on-line sensor, and when a measurement signal is positive, indicating that positive charge in water is excessive and a flocculating agent is excessively added; the measurement signal is negative, which indicates that the negative charge in the water is excessive and the flocculating agent is not sufficiently put in the water; when the measuring signal is zero, the water is in an electric neutral state, and the adding amount of the flocculating agent is the adding amount judged according to the turbidity value n.
5. The method for treating washing water with flocculant according to claim 1, wherein the method for judging whether or not the amount of flocculant to be added meets the standard based on the amount of charge q is: the detection system of the washing water is provided with a residual charge standard value A, the residual charge alpha of the washing water is detected in the flocculation treatment process, and when the | alpha | is less than A, the system judges that the input amount of the flocculating agent meets the standard.
6. The method of treating washing water with a flocculant according to claim 1, wherein at least two or more flocculants are added to the washing water to flocculate the washing water.
7. A method of flocculating agent treatment of wash water according to claim 6 wherein the two or more flocculating agents comprise an electrolyte flocculant and a polymer coagulate.
8. The method for treating washing water with flocculant according to claim 6, wherein the two or more kinds of flocculant comprise a cationic liquid coagulant and an anionic flocculant, and the cationic liquid coagulant is first added and then the anionic flocculant is added in the flocculant adding process.
9. A flocculation washing machine for treating washing water by using the flocculant according to any one of claims 1 to 8, wherein a turbidity detection device is arranged on a water containing barrel, the turbidity detection device detects the turbidity of the washing water after washing to determine a turbidity value n of the washing water, and a control system of the flocculation washing machine determines the dosage of the flocculant according to the turbidity value n.
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| CN111762997A (en) * | 2020-06-30 | 2020-10-13 | 绍兴市城投再生资源有限公司 | Flocculant quantity control method for waste slurry treatment |
| CN113475990B (en) * | 2021-06-18 | 2022-12-06 | 广东格兰仕集团有限公司 | Washing control method of dish washing machine |
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Effective date of registration: 20201109 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER WASHING MACHINE Co.,Ltd. |
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