JP2007152077A - Washing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing method, in which relatively clean drain water used in a rinsing process and a drying process is cleaned and disinfected, and the cleaned water is fed for reuse in a preliminary washing process, a primary washing process, and a first-stage rinsing process. <P>SOLUTION: In this washing method, the preliminary washing process, the primary washing process 2, the rinsing process 3, and the drying process 4 are executed in this order. Dirty water produced in the preliminary washing process 1, the primary washing process 2, and the first-stage rinsing process 3a is drained to sewage. Rinsing water used in second- and on rinsing processes 3b-3d, and drained water in the drying process 4 are stored in a water storage/treatment tank 5 to be cleaned and disinfected. The cleaned water after cleaning and disinfecting is fed for reuse in the preliminary washing process 1, the primary washing process 2, and the first-stage rinsing process 3a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a washing method capable of reusing relatively clean water generated in the rinsing step and the dehydration step in the washing method executed in the order of the pre-washing step, the main washing step, the rinsing step, and the dehydration step.

  In general, a laundry washing method is performed in the order of a pre-washing step, a main washing step, a rinsing step, and a dehydration step. In this washing method, clean water is used in the pre-washing step, the main washing step, and the rinsing step. In addition, all the dirty generated water after use was drained into sewage.

  However, this washing method has a problem that a large amount of water is required and the water bill becomes high.

  The cost of this water bill is very high not only for ordinary households, but also for companies that have to wash a large amount of laundry, such as diaper washers, cleaning traders, etc. Therefore, various water saving methods have been developed.

For example, there has been a washing method in which a water supply pump is provided in a dewatering washing machine, and the washing operation and the first rinsing operation are performed by supplying bath water with the water supply pump to save water. (For example, refer to Patent Document 1).
JP-A-8-66587

  However, when washing the bath water and reusing it for rinsing operations, it is necessary to store the bath water in the vicinity of the washing machine, not only the installation location of the washing machine is specified, As mentioned above, since it is a small amount if it is a general household laundry, bath water such as hot water can be used, but companies that have to wash a large amount of laundry can not cope with bath water level .

  Furthermore, since there is a risk that germs and the like are contained in the bath water, there is a risk that the germs and the like may adhere to the laundry if the bath water is reused as it is.

  The present invention aims to solve such problems, and after purifying and sterilizing relatively clean rinse water, removed water, etc. produced in the rinsing step and dehydration step, Provided is a washing method which can be reused by supplying water to the pre-washing step, the main washing step and the first rinsing step.

To achieve the above objective,
The washing method according to claim 1 is a washing method executed in the order of a pre-washing step, a main washing step, a rinsing step, and a dehydration step, and the waste water generated in the pre-washing step, the main washing step, and the first rinsing step is left as it is. The rinsing water generated in the second and subsequent rinsing steps and the removed water generated in the dehydration step are stored in a storage / treatment tank and purified / sanitized. Purified water after sterilization is supplied to the pre-washing step, the main washing step and the first rinsing step and reused.

  The washing method according to claim 2 is a washing method executed in the order of a pre-washing step, a main washing step, a rinsing step, and a dehydration step, wherein the sewage generated in the pre-washing step, the main washing step, and the first rinsing step is drained. The sewage water is treated as sewage through a treatment device, and the rinse water generated in the second and subsequent rinsing processes and the removed water generated in the dehydration process are stored in a storage / treatment tank and purified / sanitized. The purified water after purification and sterilization is reused by supplying water to the pre-washing step, the main washing step, and the first rinsing step.

  The washing method according to claim 3 is a washing method that is executed in the order of a pre-washing step, a main washing step, a rinsing step, and a dehydration step, and is generated in the waste water generated in the pre-washing step and the main washing step, and in the first rinsing step. About 1/3 of the sewage is discharged into sewage or the like as it is or through a waste water treatment device, and is generated in about 2/3 of the sewage generated in the first rinsing process and in the second and subsequent rinsing processes. The rinse water and the removed water generated in the dehydration step are stored in a water storage / treatment tank and purified and sterilized, and the purified water after purification and sterilization is supplied to the prewash step and the main water. Water is reused by supplying water to the washing step and the first rinsing step.

  The washing method according to claim 4 is the cleaning method according to any one of claims 1 to 3, wherein the sewage, rinse water and removed water stored in the water storage / treatment tank are purified and disinfected as a chlorinated sterilant. Features.

  The washing method according to claim 5 is the cleaning method according to any one of claims 1 to 4, wherein at least the second rinsing step among the main washing step, the first rinsing step, and the second rinsing step is reused. A chlorine sterilant is supplied separately with water.

  The washing method according to claim 6 is the cleaning method according to any one of claims 1 to 5, wherein the water storage / treatment tank is mixed with rain water stored in the storage tank together with the sewage, rinse water and removed water. It is characterized by being sterilized.

  A washing method according to a seventh aspect is characterized in that in any one of the first to sixth aspects, clean water is supplied in the second and subsequent rinsing steps.

  The washing method according to claim 8 is the washing method according to any one of claims 1 to 7, wherein at least of the purified water supplied to the main washing step and the first rinsing step, and the clean water supplied to the second rinsing step. The purified water supplied to the main washing process is heated.

The present invention has the following effects.
According to the washing method according to claim 1, after rinsing water generated in the second and subsequent rinsing steps and removed water generated in the dehydration step are stored in a storage / treatment tank, and purified and disinfected. Since the purified water is supplied to the pre-washing process, the main washing process and the first rinsing process and reused, not only ordinary households but also companies that have to wash large quantities of laundry, Since a large amount of purified water can be reused, it is possible to significantly reduce the cost of expensive water bills.

  Further, the purified water can be safely used because it is purified and sterilized and reused.

  According to the washing method of the second aspect, the rinsing water generated in the second and subsequent rinsing steps and the removed water generated in the dehydration step are drained into sewage or the like via the drainage treatment device. Therefore, even if it is used in an area where sewage treatment facilities are not maintained, the same effect as in claim 1 can be obtained.

  According to the washing method according to the third aspect, the sewage generated in the pre-washing step and the main washing step, and approximately 1/3 of the sewage generated in the first rinsing step is treated as it is or through a waste water treatment device. About 2/3 of the sewage produced in the first rinsing process, and the rinsing water produced in the second and subsequent rinsing processes, and the removed water produced in the dehydration process are stored in a storage / treatment tank. The purified water that has been stored and purified and sterilized, and purified and sterilized is supplied to the pre-washing process and the main washing process and the first rinsing process for reuse. This can further reduce the cost of expensive water bills.

  According to the washing method according to claim 4, the sewage, rinse water and removed water stored in the water storage / treatment tank are reused as purified water purified and disinfected by the chlorinated sterilant. Compared with clean water, it has a high bleaching power and sterilizing power and is safe and can enhance the washing effect of the laundry.

  According to the washing method according to claim 5, since the chlorinated sterilant is separately supplied, it is used in at least the second rinsing step among the main washing step, the first rinsing step, and the second rinsing step. The concentration of the chlorinated sterilant can be increased, and the cleaning effect according to the dirt of the laundry can be easily adjusted.

  According to the washing method according to the sixth aspect, rain water is mixed together in the water storage / treatment tank and purified and sterilized along with the sewage, rinse water and removed water, so the rain water can be reused as purified water. The cost of water bills can be further reduced.

  According to the washing method of the seventh aspect, since clean water is supplied in the second and subsequent rinsing steps, the chlorine-based sterilant can be reliably removed from the laundry.

  According to the washing method which concerns on Claim 8, the purification | cleaning supplied at least to the main washing process among the purified water supplied to the main washing process and the first rinsing process and the clean water supplied to the second rinsing process Since the water is heated, dirt attached to the laundry can be efficiently removed.

  Hereinafter, a washing method according to the present invention will be described with reference to the drawings.

  FIG. 1 is a chart showing an embodiment of a washing method A according to the present invention. This washing method A is performed in the order of the pre-washing step 1, the main-washing step 2, the rinsing step 3, and the dehydration step 4, and the sewage generated in the pre-washing step 1, the main-washing step 2 and the first rinsing step 3a is directly treated as sewage. The rinsing water generated in the second and subsequent rinsing steps 3b, 3c and 3d and the removed water generated in the dehydrating step 4 are stored and treated with a treatment tank capable of purifying and sterilizing. The water is once stored in the tank 5 and the purified water after purification and sterilization is supplied to the pre-washing process 1 and the main washing process 2 and the first rinsing process 3a via the pump 6 to be reused. ing.

  The details will be described below.

  First, dirty laundry such as diapers is put in a washing machine (not shown), and the rinse water and the removed water are purified and sterilized, and the purified water is supplied. In addition, the dirt adhering to the laundry surface is washed away in the pre-washing step 1, and the waste water generated in the pre-washing step 1 is drained into sewage or the like.

  Next, the washing machine (not shown) containing the laundry after the pre-washing step 1 is again supplied with purified water after the rinsing water and removed water have been purified and sterilized, and the necessary amount. After the predetermined time has elapsed, the main washing step 2 is completed, and if the main washing step 2 is completed, the sewage generated in the main washing step 2 is also converted into sewage. Drain.

  The washing machine (not shown) containing the laundry after the main washing step 2 is supplied again with purified water after the rinsing water and the removed water have been purified and disinfected, and the laundry. In the present embodiment, the case where the rinsing step 3 is performed four times is illustrated.

  That is, in the first rinsing step 3a, as described above, the purified water after the rinsing water and the removed water have been purified and sterilized is supplied, and after the predetermined time has elapsed, the first rinsing step 3a is completed. For example, the sewage generated in the first rinsing step 3a is also drained into sewage or the like.

  When the first rinsing step 3a is completed, the laundry stains, detergents and the like are almost removed.

  For this reason, in the second and subsequent rinsing steps 3b, 3c, and 3d, as finishing processing of the laundry, tap water or other clean water is newly supplied to completely remove dirt, detergent, and the like on the laundry.

  In the second and subsequent rinsing steps 3b, 3c, and 3d, since no detergent is attached as in the first rinsing step 3a, the amount of water supplied is larger than that of the purified water in the first rinsing step 3a. A small amount of water may be supplied.

  The rinse water generated in the second and subsequent rinsing steps 3b, 3c, and 3d is stored in the water storage / treatment tank 5 without being drained into sewage or the like.

  Finally, the washing machine (not shown) containing the laundry after the rinsing process 3 performs the laundry dehydration process 4, and after a predetermined time has passed, the laundry is taken out and dried (not shown). is there.

  In addition, the removal water produced | generated in this spin-drying | dehydration process 4 is stored in the water storage and processing tank 5, without draining to sewage etc. similarly to the above.

  On the other hand, the rinse water and the removed water stored in the water storage / treatment tank 5 are purified and sterilized. In this embodiment, the rinse water and the removed water are purified and sterilized with a chlorinated sterilant.

  Here, the chlorinated sterilant means electrolyzed hypochlorite, for example, electrolyzed calcium hypochlorite, sodium hypochlorite, etc., as well as non-electrolyzed chlorine dioxide, etc. However, here, calcium hypochlorite is administered to the rinse water and the removed water stored in the water storage / treatment tank 5 and electrolyzed, and then purified and disinfected.

  Further, it is known that the chlorine-based sterilizing agents such as hypochlorite and chlorine dioxide are both water-soluble and preferable as bleaching agents and bactericides.

  The chlorine-based sterilizing agent can be used in combination with purification by microorganisms, ozone foam separation, aluminum electrolytic treatment, activated carbon filtration, or other purification / sterilization treatment.

  In this way, the rinse water and the removed water stored in the water storage / treatment tank 5 are purified and sterilized with a chlorinated sterilant to produce purified water. As described above, the pre-washing step 1 and the main washing step 2 as well as the first rinsing process 3a, so that a large amount of purified water can be reused, the cost of expensive water bills can be greatly reduced, and bleaching power compared to tap water, The sterilizing power is high and safe, and the washing effect of the laundry can be enhanced.

  In addition, since clean water is supplied to the second and subsequent rinsing steps, hypochlorite, calcium hypochlorite, sodium hypochlorite, etc. contained in the chlorinated sterilant, chlorine dioxide, etc. Can be reliably removed from the laundry.

  Furthermore, in this embodiment, the chlorine-based sterilant 7 is separately supplied through the water supply pump 8 together with the purified water to be reused in the main washing step 2 and the first rinsing step 3a.

  In this way, since the chlorine-based sterilant 7 can be separately supplied with water, the concentration of the chlorine-based sterilant used in the main washing step 2 and the first rinsing step 3a can be increased, and according to the dirt of the laundry. The cleaning effect can be easily adjusted.

  Moreover, in a present Example, at least the purified water supplied to the main washing process among the purified water supplied to the main washing process 2 and the first rinsing process 3a and the clean water supplied to the second rinsing process is used. Heating is also possible.

  As the heating means here, high-temperature steam 9 is jetted into the purified water and clean water supplied during the main washing step 2, the first rinsing step 3a, and the second rinsing step 3b, and heated. Like to do.

  Therefore, since the laundry can be washed with the appropriately heated purified water and clean water, dirt such as oil adhering to the laundry can be easily removed.

  FIG. 2 is a chart showing another embodiment of the washing method A according to the present invention. In addition, the same number is attached | subjected to the site | part same as FIG. 1, the overlapping description is abbreviate | omitted, and only the characteristic of a present Example is demonstrated below.

  This washing method A is characterized in that the water storage / treatment tank 5 is mixed with rainwater stored in the storage tank 10 and purified and disinfected together with purified water.

  Specifically, a storage tank 10 capable of storing rainwater is installed in a place different from the water storage / treatment tank 5, and the water distribution pipe provided with a valve 10a is connected to the storage tank 10 and the water storage / treatment tank 5. If the valve 10a is opened by connecting the storage tank 10 and the like, the required amount of rainwater stored in the storage tank 10 can be mixed into the water storage / treatment tank 5.

  Then, the rinse water, the removed water and the rainwater stored in the water storage / treatment tank 5 are purified and sterilized by the chlorine-based sterilant and are generated in the purified water as described above. Water is supplied to the step 2 and the first rinsing step 3a.

  Thus, according to the washing method A of this embodiment, rainwater is mixed into the water storage / treatment tank 5 and purified and sterilized along with rinse water and removed water. It can be used and the cost of water bills can be further reduced.

  FIG. 3 is a chart showing still another embodiment of the washing method A according to the present invention. In addition, the same number is attached | subjected to the site | part same as FIGS. 1, 2, and the overlapping description is abbreviate | omitted, and only the characteristic of a present Example is demonstrated below.

  In this washing method A, a part of the sewage generated in the pre-washing step, the main washing step and the first rinsing step is drained into sewage or the like via the drainage treatment device S, specifically, the first About 1/3 of the sewage generated in the rinsing process is drained into sewage or the like via the waste water treatment device S, and about 2/3 of the sewage is stored in a water storage / treatment tank and purified / sanitized. It is characterized in that it is processed.

  That is, a dirty laundry such as a diaper is put in a washing machine (not shown), supplied with the rinse water and the removed water, and if necessary, a detergent is added to the soil attached to the laundry surface. Is washed away in the pre-washing step 1, and the sewage generated in the pre-washing step 1 is drained into the sewage or the like via the waste water treatment device S.

  Although this waste water treatment apparatus S can utilize the existing apparatus, even if it drains at least into sewage etc., it should just be able to treat the said sewage in a harmless state.

  Similarly, the sewage generated in the main washing step 2 is also drained into the sewage or the like via the waste water treatment device S.

  Since sewage is drained into sewage, etc. through such a wastewater treatment device S, a large amount of purified water can be reused in the same way as above, even when used in areas where sewage treatment facilities are not established. In addition, the wastewater can be treated safely and reliably.

  Moreover, in this washing method A, approximately 1/3 of the sewage generated in the first rinsing step is drained into sewage or the like via the drainage treatment device S, and approximately 2/3 of the sewage is stored and treated. It is stored in the tank and purified and sterilized.

  In order to distribute this sewage, it may be distributed using a valve, or piping from another route from the first rinsing step may be provided.

  In an area where sewage treatment facilities are provided, the wastewater treatment apparatus S may be drained as it is without passing through the wastewater treatment apparatus S.

  Thus, in this embodiment, without draining all of the sewage generated in the first rinsing step, only about 1/3 of the sewage is drained into sewage or the like via the drainage treatment device S, and the sewage is discharged. Approximately 2/3 is stored in the water storage / treatment tank and purified and disinfected.

  Therefore, about 2/3 of the sewage generated in the first rinsing process is stored in the water storage / treatment tank and is purified and sanitized and reused. This greatly reduces the cost of expensive water bills. It can be further planned.

It is a chart which shows one Example of the washing method A which concerns on this invention. It is a chart which shows other examples of washing method A concerning the present invention. It is a chart which shows other examples of washing method A concerning the present invention.

Explanation of symbols

A Washing method 1 Pre-washing process 2 Main washing process 3 Rinsing process 3a First rinsing process 3b to 3d Rinning process after the second time 4 Dehydration process 5 Water storage / treatment tank 7 Chlorinated sterilant 9 Steam 10 Storage tank

Claims (8)

In the washing method executed in the order of the pre-washing step, the main washing step, the rinsing step, and the dehydration step,
The sewage produced in the pre-washing step and the main washing step and the first rinsing step is drained into sewage as it is,
The rinsing water generated in the second and subsequent rinsing steps and the removed water generated in the dehydration step are stored in the water storage / treatment tank and purified and sterilized, and the clarified water is purified and sterilized. A washing method, wherein water is supplied to the pre-washing step, the main washing step and the first rinsing step and reused. In the washing method executed in the order of the pre-washing step, the main washing step, the rinsing step, and the dehydration step,
The sewage generated in the pre-washing step and the main washing step and the first rinsing step is drained into sewage or the like via a drainage treatment device,
The rinsing water generated in the second and subsequent rinsing steps and the removed water generated in the dehydration step are stored in the water storage / treatment tank and purified and sterilized, and the clarified water is purified and sterilized. A washing method, wherein water is supplied to the pre-washing step, the main washing step and the first rinsing step and reused. In the washing method executed in the order of the pre-washing step, the main washing step, the rinsing step, and the dehydration step,
About 1/3 of the sewage generated in the pre-washing step and the main rinsing step and the sewage generated in the first rinsing step are drained into sewage or the like as they are or through a waste water treatment device,
Approximately 2/3 of the sewage generated in the first rinsing step, and the rinsing water generated in the second and subsequent rinsing steps, and the removed water generated in the dehydration step are stored in the water storage / treatment tank. A washing method, wherein purified water after purification and sterilization treatment and purified and sterilized water is supplied to the pre-washing step, the main washing step and the first rinsing step and reused. In any one of Claims 1-3,
A washing method characterized in that sewage, rinse water and removed water stored in a water storage / treatment tank are purified and disinfected by a chlorinated sterilant. In any one of Claims 1-4,
Of the main washing step, the first rinsing step, and the second rinsing step, at least the second rinsing step separately supplies a chlorine-based sterilant together with purified water to be reused. In any one of Claims 1-5,
A washing method characterized in that rainwater stored in a storage tank is mixed together in a water storage / treatment tank, and purified and disinfected with sewage, rinse water and removed water. In any one of Claims 1-6,
A washing method characterized in that clean water is supplied in the second and subsequent rinsing steps. In any one of Claims 1-7,
Washing characterized by heating at least purified water supplied to the main washing step among purified water supplied to the main washing step and the first rinsing step and clean water supplied to the second rinsing step Method.