KR20140147623A - Clean water system and the movement method of salted water and washing water - Google Patents

Abstract

The present invention relates to a pickling and cleaning water purification system for a crop and a method for operating the same. More particularly, the present invention relates to a water purification system for pickling or washing water used for pickling and washing crops such as Chinese cabbage and radish, A first filtering device 100 having 4 to 6 filter layers 170; A second filtering device 200 having one to three filter media layers 270 different in specific gravity from each other; A disinfecting and disinfecting agent generator 300 for generating sterilizing ozone and disinfecting sodium hypochlorite by a predetermined amount, and a water purifier 400 for filtering bacteria and viruses
It is possible to perform adsorption, deodorization, turbidity and color removal and disinfection of toxic substances including suspended solids and suspended solids contained in treated water (pickling water or washing water), and to perform drainage step by drain outlet and backwash step by counter- The separation of toxic substances adsorbed to the filter media layer can be performed more quickly and easily. Therefore, since the salt concentration of the pickled water can be maintained and reused, it is possible to considerably reduce the costs of expensive salting salt and wastewater treatment It is possible to reduce production cost of kimchi while preventing environmental pollution.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clean water system and a method for operating the same,

More particularly, the present invention relates to a kimchi processing plant for making and selling a large quantity of kimchi, such as pickles, pickled cabbages and radishes used for pickling of Chinese cabbage, radish, etc. It is possible to reduce the cost of salt value and wastewater treatment by minimizing the amount of wastewater discharged from the kimchi factory by making it possible to keep the washing water used for washing clean and to be continuously reused. System and an operation method thereof.

Generally, a food company (for example, a kimchi factory) that produces pickles by harvesting crops produces several ten tons of high salty pickles a day, which is a lot of salt when a large amount of crops such as cabbage, radish, Is used when it is used.

That is, in general, the salinity of seawater is about 3 to 4%, whereas the salt concentration of salted water for making kimchi must be about 12 to 16%. Therefore, in order to adjust the salt concentration, For the taste and good aging condition of Kimchi, salted seaweed uses "sun salt", which is more expensive than regular salt.

In addition, the pickles used once to cut cabbage and radish include fine pesticides, residual pesticides, heavy metals, turbidity, chromaticity, etc., which contain a large amount of impurities. The pickles containing such a large amount of impurities are reused as they are, If pickles are pickled, the pickles are not good, and even if they have been washed several times after the pickling process, residual pesticides and heavy metals in the pickled cabbages and radishes become infested, There may be a problem that the health is harmed.

Therefore, although most of the Kimchi factories use 2 to 3 times of pickled water of several tens of tons when pickling Chinese cabbage, radish, etc., even though they are made of expensive "salted salmon" as described above, The salt value and the water price burden to make high-concentration pickles every year have a considerable influence on the production cost of kimchi.

For example, it is said that the salt value of "salt of sun salt" which is used when making salted water of about 30t with a salt concentration of 12 ~ 16% reaches about 2 million won. If you use this salted water only once in Chinese cabbage and radish, The salt value and the water value all contribute considerably to the production cost of kimchi.

Then, the Chinese cabbage, radish and the like cut into the pickled water as described above must be rinsed several times (four to five times) with fresh water (hereinafter referred to as 'washing water'). When the process of rinsing with the washing water is performed The salted cabbages and radishes are cleaned with the proper amount of salinity, while the washing water contains a certain amount of salt, residual pesticides and various impurities such as heavy metals.

Therefore, conventionally, the pickled Chinese cabbage or radish washed water was used 3 to 4 times due to the presence of various impurities and then drained as it is.

Therefore, when the pickled and washed water is used 2 to 3 times and 3 to 4 times and then discarded as wastewater, the concentration of saline contained in the pickled or washed water, various pesticides, heavy metals, Since the pollution occurs very seriously, it is filtered through the process of discarding the pickled water and the washing water, and the waste water treatment cost is also one of the problems that eventually becomes part of the production cost of the kimchi.

As a prior art developed to recycle the pickled water and the washing water, the method of treating salted and washed wastewater discharged from the Korean Patent Registration No. 10-0377542 (Publication No. 10-2002-0023440) disclosed in the prior art document, Which consists of a three-stage metal treatment tank for filtering the suspended solids and wash water suspension, a three-stage water treatment tank for re-filtering suspended solids, a filtration filter, and a sterilization treatment device.

However, since the prior art three-stage metal treatment tank and three-stage water treatment tank are only subjected to simple filtration treatment for suspended solids and suspended solids, adsorption / deodorization and turbidity of various harmful substances such as pesticide residues and heavy metals, And the chromaticity can not be efficiently removed. When the flocculant is adsorbed to the sand tank and the activated carbon tank constituting the three-point water treatment tank, the filtration efficiency is remarkably decreased. Therefore, the sand and the activated carbon need to be removed and replaced every time. There is a problem that the sex is not good.

Korean Patent Registration No. 10-0377542 (Publication No. 10-2002-0023440, published on Mar. 29, 2002), Title of the invention: Method and apparatus for treating discharged saline and washing water

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the problems of the conventional water purification system and prior art as described above, and it is an object of the present invention to provide a water purification system capable of removing a large amount of pickles And cleaning water can be efficiently purified at a lower cost and can be continuously reused so that the cost of salting salt and wastewater treatment can be reduced and the amount of discharged wastewater can be minimized to reduce environmental pollution. And a method of operating the same.

It is an object of the present invention to provide a first filtration apparatus having 4 to 6 filter media having different specific gravities from each other in the pickling water or cleaning water purification system used for pickling and washing crops such as Chinese cabbage and radish in a kimchi factory; A second filtering device having one to three filter media having different specific gravities inside; A sterilizing disinfectant generator installed in the treated water supply pipe (A) of the first filtration device or the secondary treatment water pipe of the second filtration device and generating ozone or sodium hypochlorite to be supplied in a quantitative manner; And a water purifier installed in the secondary treatment water pipe for filtering bacteria and viruses,

A step of adsorbing and deodorizing harmful substances including suspended solids and suspended solids, and removing turbidity and chromaticity from the first filtration apparatus and the second filtration apparatus; Disinfecting step using disinfectant and ozone; A drain step through the first and second drain outlets; A backwashing step of separating and washing the harmful substances adsorbed to the filter medium layer by the reverse and reverse water supply through the first and second reverse osmosis water inlets and the first and second reverse osmosis water outlets; And an in-situ step of supplying the treated water to the treated water supply pipe to cause the various media mixed with the backwashing step to reach the original place using specific gravity.

This invention effectively removes fine pollutants and harmful substances in pickled water and washing water which are used in large quantities when pickling Chinese cabbage, radish and the like in a kimchi factory, but keeps salinity intact and is continuously reused. Therefore, expensive salted salt value and wastewater treatment It is possible to reduce the manufacturing cost of the kimchi.

In addition, since the amount of wastewater discharged from the Kimchi factory can be minimized, contamination of surrounding environment such as soil and river due to high salinity and wastewater containing a large amount of various pollutants and harmful substances can be minimized.

1A is a diagram showing an example of a state in which the water purification system of the present invention is composed of a sterilizing disinfectant generator, a first filtration device, and a second filtration device in this order;
1B is a view showing another embodiment in which the water purification system of the present invention is configured in the order of the first filtration apparatus -> the second filtration apparatus -> the sterilizing disinfectant generator
2A shows an example in which the water purification system of the present invention is composed of a sterilizing disinfectant generator, a first filtration device, a second filtration device, and a water purifier in this order
FIG. 2B is a view showing another embodiment in which the water purification system of the present invention is configured in the order of the first filtration apparatus → the second filtration apparatus → the sterilizing disinfectant generator → the water purifier
FIG. 3 is a view showing another embodiment in which the water purification system of the present invention is composed of a sterilizing disinfectant generator, a first filtration device, a second filtration device, a third filtration device, and a water purifier in this order

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 1A and 1B are views showing a state in which a disinfecting and disinfecting agent generator is installed in front of or behind a first filtering apparatus and a second filtering apparatus constituting the water purification system of the present invention.

As shown therein, the water purification system of the present invention comprises a first filtration apparatus 100 constituting a multi-layer filtration layer with four or more filtration members, a second filtration apparatus 200 ), And a sterilizing and disinfecting agent generator 300 for generating and supplying sterilizing ozone and disinfecting sodium hypochlorite.

Namely, the pickled water or the washing water (hereinafter referred to as "treated water") for filtering the foreign substances to be used for pickling and washing of crops such as Chinese cabbage, radish and the like and then reused in the Kimchi factory is passed through the first filtration apparatus 100 and the second filtration apparatus Device 200 in order,

The first filtration apparatus 100 is installed by branching the treated water inlet 110 and the first reverse water discharge outlet 120 in which the electric valves 111 and 121 are respectively installed in the upper inlet 101, A first treated water outlet 130 provided with electromotive valves 131, 141 and 151 and a first reverse water inlet 140 and a first drain outlet 150 are branched.

The strainer 160, which is spaced from the bottom of the first filtering device 100 by a predetermined distance, is placed on the lower side of the strainer 160 and the light weight is placed on the lower side of the strainer 160, A multi-layered structure in which four to six filter media are selected from a gravel layer, a sand layer, an ilite layer, a garnet layer, a zeolite layer, a carbon layer, and an anthracite layer made of a filter material of light, garnet, zeolite, And a free layer 170 is provided.

The second filtration apparatus 200 includes a primary treatment water inlet 210 connected to an upper inlet 201 through a primary treatment water outlet 130 of the first filtering apparatus 100 and a primary treatment water pipe 180, And the second reverse water discharge port 220 are respectively branched by the electric valves 211 and 221 so as to be opened and closed respectively and the lower outlet 202 is provided with the electric valves 231 and 241 and 251 The second treated water outlet 230, the second countercleaned water inlet 240, and the second drain outlet 250 are branched.

In the second filtration apparatus 200, a gravel layer, a sand layer, an ilite layer, a garnet layer, a zeolite layer, and a zeolite layer, which are made of various media having different specific gravities from each other on a strainer 260, , A carbon layer, and an anthracite layer.

A reference numeral A in the drawing denotes a treated water supply pipe installed in the treated water inlet 110 of the first filtration apparatus 100 and 180 a treated water discharge port provided in the first filtered water outlet 130 and the second filtered apparatus (280) is a secondary treatment water pipe installed in the secondary treatment water discharge port (230), (B) is a primary treatment water pipe connecting the primary treatment water inlet (210) Water supply pipe for supplying the reverse water wash water to the second reverse osmosis water inlet (140) and the second reverse osmosis water inlet (240).

The sanitizing and disinfecting agent generator 300 for generating sterilizing ozone or disinfecting sodium hypochlorite is connected to the treated water supply pipe A provided in the treated water inlet 110 of the first filtration apparatus 100 Or may be connected to the secondary water pipe 280 provided in the secondary water outlet 230 of the second filtering device 200 as shown in FIG.

In other words, Kimchi Kimchi is usually in early winter (November) due to cold weather. However, kimchi factories that can store for a long time due to the development of Kimchi refrigerator are producing kimchi in large quantities regardless of the season. Therefore, the pickling and washing water for pickling and washing Chinese cabbage and radish are different from each other in the breeding rate of microorganisms by season.

The sanitizing and disinfecting agent generator 300 controls the amount of the treated water passing through the treatment water supply pipe A or the secondary treatment water pipe 280 according to the amount of pulses sensed by the flow sensor (Sodium hypochlorite) and ozone for disinfection are constantly supplied by a regular metering pump to sterilize and disinfect treated water.

When the gravel layer is used as a filtration layer, the first filtration apparatus 100 and the second filtration apparatus 200 have a specific gravity of 2.65 or more, and the gravel is first laid directly on the strainer 160 (260) And a layer of a member selected from a sand layer, an ilite layer, a garnet layer, a zeolite layer, a carbon layer and an andracite layer is laminated thereon in accordance with the specific gravity.

Here, the gravel layer and the sand layer filter the suspended substances and suspended substances contained in the treated water.

The illite constituting the illite layer is a substance that excels in adsorption and deodorization and decomposition of various suspended substances including heavy metals and radioactive substances in water and emits a large amount of dissolved oxygen to activate the water. About 2.6 to 2.9.

The garnet constituting the garnet layer is a filter medium mainly used for a multi-layer filtration method to remove minute floating matters of water, and its specific gravity is about 2.2 to 2.5.

The zeolite constituting the zeolite layer is a porous mineral having a nano-sized channel or a pore. The zeolite is excellent in adsorption, deodorization and antibacterial functions of other materials, and has a specific gravity of about 2.2.

Carbon constituting the carbon layer filters the harmful substances (impurities, residual chlorine, organic chemicals, mercury, lead, bacteria) in the water by using the microporous adsorption force of the activated carbon, and maintains the density allowing the salt and minerals to pass therethrough , And specific gravity is about 1.72 to 1.92.

Anthracite, which constitutes the above-mentioned andthracite layer, absorbs the odor and taste of water with a filter material for turbidity removal using coal as a raw material and has a specific gravity of about 1.4 to 1.6, Well separated and washed.

In the present invention, the pickled water used for pickling of Chinese cabbage or radish or the washed water used for washing pickled cabbage or radish in a kimchi factory is stored in a separate storage tank not shown in the figure and pumped with a pump, Water supply pipe A of the apparatus 100, it may be supplied directly to the process water supply pipe A of the first filtration apparatus 100 without using the storage tank.

Here, FIGS. 2A and 2B are views showing a state in which a water purifier is further installed in the water purification system of FIGS. 1A and 1B.

That is, a positive charge filter or a general filter is installed in the secondary treatment water pipe 280 of the second filtration apparatus 200 to connect a water purifier 400 for filtering general bacteria, E. coli and Norovirus (food poisoning bacteria) It is made of water or washing water so that it can be reused.

When the number of treated water to be purified is further increased, another second filtration apparatus 200 is further provided on one side of the second filtration apparatus 200 as shown in FIG. 3, and the treated water is supplied to the first filtration apparatus 100, the two second filtration apparatuses 200 may be sequentially filtered to be filtered.

Hereinafter, an operation method of filtering the treated water using the pickling water of the crop and the water purification system of the washing water of the present invention will be described in detail.

Step 1: (primary filtration step of treated water)

When the treated water used for pickling or washing crops such as Chinese cabbage or radish is first filtered, the treated water inlet 110 of the first filtration apparatus 100 and the electric valve 111 of the primary treated water outlet 130 ) 131 are opened and both the first reverse water discharge port 120 and the first reverse water discharge inlet 140 and the electric valves 121, 141 and 151 of the first drain discharge port 150 are closed.

The first filtration water inlet 210 of the second filtration apparatus 200 and the second filtration water discharge port 230 of the second filtration apparatus 200 are opened and the second reverse water discharge port 220 and the The two reverse osmosis water inflow ports 240 and the second drain outflow ports 250 are blocked by the electric valves 221, 241 and 251.

In this state, when the treated water is supplied to the treated water inlet 110 of the first filtration apparatus 100 through the treated water supply pipe A, the treated water is supplied to the first filtration apparatus 100 from 4 to 6 The water absorption and deodorization, turbidity and chromaticity of various kinds of harmful substances such as suspended solids, suspended solids, residual pesticides and heavy metals contained in the treated water are firstly removed, Through the strainer 160 of the first process water outlet 130, the electric valve 131 is opened.

Second step: (Second filtration step of treated water)

The treated water that has passed through the primary treated water outlet 130 of the first filtering apparatus 100 and the primary treated water pipe 180 in turn passes through the primary treatment process in which the motorized valve 211 of the second filtering apparatus 200 is opened And then flows into the second filtration apparatus 200 through the water inlet 210.

At this time, on the strainer 260 inside the second filtering apparatus 200, a single layer structure composed of one to three filter media selected from a gravel layer, a sand layer, a light layer, a garnet layer, a zeolite layer, a carbon layer, The harmful substances such as suspended solids, suspended solids, pesticide residues, and heavy metals remaining in the primary treated water in the course of passing through the filter medium layer 270 are very ideally removed. In this way, And then discharged through the second treated water discharge port 230 through the second treated water discharge port 230.

As shown in FIG. 3, when a plurality of the second filtration apparatuses 200 are installed, the treated water is filtered through the two second filtration apparatuses 200 in order, and then discharged to the next stage.

Step 3: (step of adding disinfectant and disinfectant to the treated water)

In this step, a disinfecting and disinfecting agent generator 300 for generating sterilizing ozone or disinfecting sodium hypochlorite is installed in the process water supply pipe A for supplying the process water to the first filtration device 100, And the disinfectant and the disinfectant are put into the water.

Here, when the treated water is supplied to the first filtration apparatus 100 through the treated water supply pipe (A), the sterilizing disinfectant may be injected into the metering pump to be metered in. When the flow rate sensor (not shown) measures the amount of the process water supplied into the first filtration apparatus 100, the sterilizing disinfectant generator 300 operated by the control unit receiving the measurement value It is preferable to automatically inject a proper amount of sanitizing disinfectant (ozone or sodium hypochlorite).

Since the sterilizing disinfectant to be introduced as described above performs sterilization and disinfection of the treated water at the time of filtration treatment in the first filtration apparatus 100, it is possible to prevent the bactericidal or microorganism- Lt; / RTI >

As shown in FIG. 1B, the sterilizing and disinfecting agent generator 300 for supplying the disinfectant disinfectant may be installed in a discharge line installed in the second treated water outlet 230 of the second filtration apparatus 200 to remove ozone or chlorochloric acid Sodium may be supplied to the secondary treatment water subjected to the secondary filtration treatment in a fixed amount.

The sterilizing disinfectant generator 300 may be installed in any one or both of the process water supply pipe A of the first filtration device 100 and the secondary process water pipe 280 of the second filtration device 200, It increases the disinfection rate of bacteria and microorganisms in the treated water, thus making the pickled water or the washing water hygienic for reuse.

In the present invention, when the treated water discharged through the second treated water discharge port 230 of the second filtration apparatus 200 is salted water, the salt concentration is 12 to 16%, and the salinity concentration (3 to 4% The second filtration apparatus 200 having the first filtration apparatus 100 having the multi-layered filter medium layer 170 and the single-layered filter medium layer 270 having the single- Even if treated, only harmful substances such as various suspended substances, suspended substances, pesticide residues, heavy metals and the like are satisfactorily removed, but the saline concentration is maintained almost as it is.

Therefore, if the secondary treated water that has been subjected to the filtration treatment twice as described above is directly fed into the pickling tank of the agricultural product or is received in a separate storage tank and then supplied to the pickling tank, the product can be kept in good condition without harvesting the salt again It can be reused.

Also, even in the case of the washing water of agricultural products picked up in the treated water twice, the harmful substances such as suspended substances, suspended substances, residual pesticides and heavy metals remaining in the washing water are well removed and the salt concentration is weakly retained The second filtered water can be immediately sent to the agriculture washing basin or stored in a separate storage container and then reused as the washing water. Therefore, the water-saving effect of the washing water is excellent.

Step 4: (Purification step using water purifier)

As shown in FIGS. 2A and 2B, in the present invention, an ordinary water purifier 400 provided with a general filter or a positive charge filter is additionally installed in the discharge line of the secondary water to be secondarily filtered by the second filtration apparatus 200, When the water is purified by the water purifier 400 and then supplied as pickling water or washing water, it is effectively removed and supplied with general bacteria, Escherichia coli, Norovirus (food poisoning bacteria), etc. Therefore, You can do it.

Step 5: (Drain stage of the filtration device)

When the pickled water or washing water used for pickling agricultural products such as Chinese cabbage or radish is filtered for a long time by using the first filtration apparatus 100 and the second filtration apparatus 200, A large amount of suspended solids, suspended solids, residual pesticides, heavy metals, and the like are excessively adsorbed in the filter media 170 and 270 built in the second filtering device 200, and the efficiency is gradually reduced.

At this time, according to the present invention, the first treated water inflow port 110 of the first filtration apparatus 100, the first treated water discharge port 130 and the first treated water inflow port 210 of the second filtration apparatus 200, The first drain exhaust port 150 and the second drain exhaust port 250 of the second filtration apparatus 200 are opened in a state in which the electric valves 111, 131, 211 and 231 of the discharge port 230 are closed .

The treated water that has been filled in the first filtration apparatus 100 and the second filtration apparatus 200 is discharged through the first drain discharge port 150 and the second drain discharge port 250.

Step 6: (backwash step with backwash)

When the drain is completed, the first drain outlet 150 of the first filtration device 100 and the second drain outlet 250 of the second filtration device 200 lock the electromotive valves 151 and 251, The first countercleaning water outlet 120, the first counterclean water inlet 140, the second counterclean water outlet 220 and the second counterclean water inlet 240 are connected to the electric valves 121, 141, 221 and 241 And supplies the reverse water wash water to the first filtration apparatus 100 and the second filtration apparatus 200 in the open state.

Then, the reverse segregation water is filled up by the strainer 160 (260) and filled up to form a multi-layered and single-layered filter medium layer selected from "gravel layer, sand layer, ilite layer, garnet layer, zeolite layer, carbon layer, (170) and (270) are lifted up to separate harmful substances such as suspended substances, floating substances, residual pesticides, and heavy metals adsorbed on the filter media. Then, the first and second reverse water discharge openings (120) And is rapidly discharged to the outside through the stationary water discharge port 220.

When the backwashing operation is completed, the first reverse water discharge outlet 120, the second reverse water discharge outlet 220, the first reverse water discharge inlet 140 and the second reverse water discharge inlet 240 are closed and the first drain discharge port 150 and the second drain outlet 250 are opened.

The backwash water filled in the tubular body of the first filtration apparatus 100 and the second filtration apparatus 200 is drained and discharged. While the backwash water is drained and discharged as described above, the first filtration apparatus 100 and the second filtration apparatus 100, The filter media selected from among various media (gravel, sand, ilite, garnet, zeolite, carbon, and andesite) having different specific gravities in the filtration device 200 are found in their original places to form their respective layers.

Thereafter, the first drain outlet 150 and the second drain outlet 250 are closed and the treated water inlet 110, the first treated water inlet 210, the first treated water outlet 130, When the collected water or washing water is supplied again through the treated water supply pipe A in the opened state, the above-mentioned process is repeatedly performed in the first and second filtration apparatuses 100 and 200, The filtration process is repeated.

In the present invention, all of the motor-operated valves may be installed with a manual valve, but it is preferable that the motor-operated valves are automatically opened and closed by the control unit since the user's convenience can be pursued.

A: treated water supply pipe B: reverse water supply pipe
100: first filtration device 110: treated water inlet
120: first stationary water outlet 130: first treated water outlet
140: first reverse osmosis water inlet 150: first drain outlet
160, 260: strainer 170, 270:
200: second filtration unit 210: primary treated water inlet
220: second stationary water outlet 230: second treated water outlet
240: Second countertop water inlet 250: Second drain outlet
300: disinfectant disinfectant generator 400: water purifier

Claims (6)

In constructing a juice or pickling water purification system used for pickling and washing of crops such as cabbage and radish in the Kimchi factory,
A first filtration apparatus having a multilayered filter medium layer 170 composed of 4 to 6 filter media different in specific gravity from filter media of gravel, sand, ilite, garnet, zeolite, carbon and andesite on the inner strainer 160 100);
A second filtration apparatus 200 having a filter medium layer 270 composed of one to three filter media having different specific gravity among the various filter media above the inner strainer 260;
A sterilizing and disinfecting agent generator 300 for generating sterilizing ozone and disinfecting sodium hypochlorite,
The treated water inlet 110 and the first reverse water discharge outlet 120 provided with the electromotive valves 111 and 121 are branched and installed in the upper inlet 101 of the first filtration apparatus 100 and the lower outlet 102 A first treated water discharge port 130 provided with electromotive valves 131, 141 and 151, a first reverse water inlet 140 and a first drain outlet 150 are branched,
A first treated water inlet 210 and a second treated water outlet 220 connected to the first treated water outlet 130 of the first filtering device 100 are connected to the upper inlet 201 of the second filtering device 200, And the second outlet 202 is provided with a second treated water outlet 230 provided with the electric valves 231, 241 and 251 and a second outlet The water inlet 240 and the second drain outlet 250 are branched
And the water purification system of the washing water.
The method according to claim 1,
The sanitizing / disinfecting agent generator 300 may include:
Is installed in any one or both of the treated water supply pipe (A) of the first filtration apparatus (100) and the secondary treatment water pipe (280) of the second filtration apparatus (200) .
3. The method of claim 2,
A water purifier 400 equipped with a general filter or a positive charge filter is installed at the tail of the secondary water pipe 280 through which the treated water of the second filtering device 200 is discharged
Wherein the secondary treatment water filtered by bacteria and viruses can be reused as pickling water or washing water.
A method of operation of a pickling or rinsing water purification system used for pickling and washing crops such as cabbage and radish in a Kimchi factory,
Using the water purification system of claim 1 or 2,
The first filtration unit 100 opens the treated water inlet 110 and the first treated water outlet 130 and is connected to the first reverse water discharge outlet 120 and the first reverse water discharge inlet 140 and the first drain discharge outlet And the second filtering device 200 opens the first treated water inlet port 210 and the second treated water outlet port 230 and the second reverse water discharge port 220 and the second reverse water inlet port 240 and the second drain outlet 250 are closed to supply the treated water in the multi-layered filter medium layer 170 and the single-layered filter medium layer 270 in the second to third stages, And removing the turbidity and chromaticity of the harmful substances including the harmful substances;
Supplying a sterilizing disinfectant when supplying treated water to the first filtration apparatus (100) or discharging the second treated water from the second filtration apparatus (200);
The first treated water inlet port 210 and the second treated water outlet port 230 of the treated water supply pipe A of the first filtration apparatus 100 and the first treated water discharge port 130 and the second filtration apparatus 200 And a drain step of opening the first drain outlet 150 and the second drain outlet 250 to discharge the treated water filled in the first filtering device 100 and the second filtering device 200,
After completion of the drain step, the first and second drain outlets 150 and 250 of the first and second filtration apparatuses 100 and 200 are closed and the first and second reverse water outlets 120 and 220 The first and second reverse water inlet ports 140 and 240 are a backwashing operation for separating harmful substances adsorbed to the filter media 170 and 270 by supplying backwash water in an open state;
Wherein the water is collected from the crops.
5. The method of claim 4,
After the backwashing step
The first and second drainage outlets 120 and 220 and the first and second reverse drainage outlets 140 and 240 are closed and the first and second drain outlets 150 and 250 are opened
A plurality of filter media layers 170 and 270 having different specific gravities while the backwaters of the first and second filtration devices 100 and 200 are drained;
Wherein the method comprises the steps of:
5. The method of claim 4,
The secondary treatment water discharged through the second filtration apparatus 200,
Treating the purified water with a water purifier 400 equipped with a general filter or a positive charge filter;
Wherein the method further comprises the steps of:

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