JP2006026516A - Water purification material and purification system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water purification material which reduces a small pieces of garbage and sedimentation sludge and at the same time remove offensive odors by decomposing and digesting oils and fats in kitchen wastewater flowing into a grease trap, and a method which produces drinking water, washing water for foods and dishes, and water for prolonging the life of a fresh flower. <P>SOLUTION: A composition containing active soil performing ion exchange is used as the water purification material. Preferably the active soil comprises an inorganic and/or organic component consisting of at least one among silicon, alumina, allophane, humic acid, fulvic acid, etc., and trace radioactive rare earth mineral generating minus ions. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method for purifying an organic wastewater containing an oily substance (solid oil + liquid oil) collected in a grease trap such as a kitchen drainage of a restaurant, restaurant, hotel, school meal, hospital, etc. and drinking water The present invention relates to the production of water for washing food and tableware and the production of water for use in extending the life of fresh flowers.

  Organic wastewater containing oily substances (solid oil + liquid oil) collected in grease traps such as restaurants, restaurants, hotel meals, school meals, hospital kitchen wastewater, etc., will be spoiled with oil and fat. In order to give off a foul odor, daily cleaning is being carried out, but the operation was complicated and very difficult. For this reason, in Japanese Patent Application Laid-Open No. 10-230288, a wire mesh tank containing a treatment substrate as a microorganism carrier is installed in each part of the grease trap, and a dead parasite microorganism solution and a nutrient balance active solution are dropped or sprayed on the bottom surface. A system for decomposing and purifying grease trap oils by providing more appropriate aeration is disclosed. In JP-A-2000-189984, Sapro F liquid and BN fungal yeast liquid are used as purification materials, and tanks and air pumps containing these are stored in the purification equipment box, and a certain time before the end of the cooking operation. A certain amount of Sapro-F solution is dripped into the septic tank over a certain period of time, and a certain amount of BN bacteria yeast solution is supplied to the septic tank at the end of the cooking operation to purify it. A means for storing cooking waste water is shown again, and a purifying apparatus in which these operations are automated by a timer and a switch has been proposed. In addition, activated carbon, zeolite, vitamin C, etc. are used for purification of odors and chlorine in drinking tap water, and sodium hypochlorite, etc., has been generally used for sterilization of food and tableware, Physicochemical treatment was common for water treatment. In addition, various bactericides including antibacterial cationic surfactants have been used as flower life-extending agents.

However, drainage treatment such as grease trap has the following drawbacks.
(1) In daily cleaning practice, after work was completed, it was necessary to clean in a narrow place late at night, and it was impossible to completely clean the grease trap due to oil or sludge adhering to it.
(2) Requesting a specialized contractor every day was too expensive and impossible every day.
(3) In the method using bacteria, since the concentration of bacteria in running water cannot be completely controlled, stable purification performance could not be obtained.
(4) It is impossible to install a dedicated purification device in a small kitchen, and the cost burden is large.
(5) However, leaving the grease trap unclean has caused problems due to unsanitary conditions and bad odors in the kitchen, and has been one of the factors that hinder the solution to the problem of sewage purification.
(6) In recent years, it has become popular to easily treat residual chlorine in tap water to make it safe and secure, such as using water purifiers for business and household use. There was a problem because there were frequent and frequent replacements, and the time for replacement was unknown. .

  In order to solve the above problems, the present invention employs the following means. That is, the water purification material of the present invention is characterized by using a water purification material containing active soil for ion exchange used for water purification and a component (for example, ceramic) that generates negative ions. The active soil is composed of inorganic and / or organic components composed of at least one of silicon, alumina, allophane, humic acid, fulvic acid and the like. It is composed of trace radioactive rare earth minerals such as thorium or uranium that generate negative ions.

  The above composition of the present invention can be formed into a paste having an appropriate consistency and solidified to obtain a water purification material, or dried (solidified) as a slurry (suspension) of an appropriate concentration to purify water. It can be a material. Furthermore, the molded dried product can be fired in an oxidizing or reducing atmosphere (preferably at a temperature of 800 to 1300 ° C.) to provide a water purification material with excellent water resistance, and a semipermanent effect can be expected. Is to provide.

  In the water purification agent of the present invention, a binder used at the time of molding and an aggregate for enhancing strength can be used as other components as necessary.

  The typical example of the component ratio (weight basis) of the water purification material of the present invention is as follows. Active soil 40-80% (preferably 40-60%) Binder 0-50% (preferably 30-50%) Aggregate 0-30%, trace radioactive rare earth minerals 10-30% (preferably 5-50%) 20%). As the binder used in the present invention, various inorganic and / or organic binders are used, and can be selected according to each specific application as a cleaning agent.

  When the purification material of the present invention is used as a water treatment agent, a suitable binder is a component that does not easily peel off and exhibits a good molding action, and can be roughly classified into three. That is, (a) a water-soluble organic polymer component, (b) a water-insoluble organic polymer component, and (c) an inorganic binding component. Specific examples of these are as follows.

(A) Water-soluble organic polymer component (a) Water-soluble synthetic polymer component polyvinyl alcohol, sodium polyacrylate, polyacrylamide, polyvinyl pyrrolidone, polyvinyl methyl ether, polyvinyl sulfone, maleic acid copolymer, polyethylene oxide, polydiallylamine, Polyethyleneimine, polyethylene glycol (b) Water-soluble cellulose derivatives Carbonylmethylcellulose, methylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, other mixed ethers, cellulose sulfate ester sodium (c) Water-soluble natural polymer components Arabia gum, tragacanth gum, karaya gum, guar gum, Tara gum, locust bean gum, tamarind gum, sodium alginate, propylene glycol alginate Esters, carrageenan, furcellaran, agar, starch, high methoxy pectin, low methoxy pectin, chitin, chitosan

(B) Water-insoluble organic polymer component Polymethylpentene, petroleum resin, ionomer, cellulose butyl acetate, polystyrene, unsaturated polyester resin, water-crosslinked polyethylene, SAN resin, EVA modified resin, ethyl cellulose, ACS resin (for heat resistance), methacrylate Rhostyrene copolymer, cellulose acetate, methacrylic resin, low density polyethylene (LDPE), weather resistant terpolymer resin, AAS resin, acrylonitrile graft copolymer, polyurethane, transparent ABS resin, polyethylene terephthalate, rigid polyvinyl chloride, heat resistance Polystyrene, butadiene-styrene resin, flame retardant ABS resin, ethylene-vinyl acetate-vinyl chloride copolymer, polyvinylidene chloride, ethylene-vinyl chloride copolymer, polybutylene terephthalate, vinyl acetate resin, AB S resin, chlorinated polyethylene, oxybenzoyl polyester, polyallylsulfone, polyamideimide, polyimide (for injection), silicone (silicone RTV), thermosetting polybutadiene, fluororesin (polytetrafluoroethylene), reinforced polyamide, epoxy resin , Chlorinated polyether, polyphenylene sulfone, polyether sulfone, allyl resin (with glass), phenol resin, melamine resin, benzoguanamine resin, polysulfone, polyacrylate, polyphenylene oxide, furan resin, polyamide, olefin vinyl alcohol copolymer, heat Plastic elastomer / polyester, polycarbonate, high density polyethylene (LDPE), polyacetal, oil-impregnated polyacetal, polypropylene, urea resin, impact resistant resin

  Examples of the inorganic binding component (C) include hydrated metal oxide sols such as silica, alumina, zirconia, titanium oxide, barium oxide and iron oxide sols, alkoxy metal compounds or alcohol solutions thereof. Examples of the alkoxy metal compound include those represented by the general formula M (OR) n (where M is a metal element, R is an alkyl group, and n is a formula weight). M is preferably Si, Al, Zr, Ba, Ti or the like. R is usually an alkyl group having 1 to 8 carbon atoms, and particularly preferably an alkyl group having 1 to 3 carbon atoms.

  As the alcohol, those capable of dissolving the alkoxy metal compound are used, and not only monovalent but also bivalent to trivalent alcohols, and preferred examples thereof are methanol, ethanol, isopropyl alcohol, glycerin and the like. . Usually, it is used as an alcohol solution of about 5 to 30%. Furthermore, for inorganic cements, plant ash, lime, bone ash, calcium phosphate, zinc white, sodium silicate, potassium silicate, lithium silicate, ammonium silicate, kibushi clay, glazed clay, porcelain earth, semi-porcelain earth, etc. There is clay.

  When the purification agent of the present invention is used for a large amount of water treatment, it is preferable to add aggregate in order to increase physical mechanical strength so as to withstand water pressure. An example of a suitable aggregate is volcanic gravel. Volcanic gravel is often collected from the same or close location as the humic allophane soil, which is the main component of the cleaning agent of the present invention, which is advantageous in terms of availability and light weight of the water treatment agent due to its porosity. In addition, the treatment efficiency is improved by increasing the surface area in contact with the water to be treated. For the same reason, volcanic ash can be advantageously used as an aggregate in the present invention. For example, brick fragments or foamed concrete fragments can be used as the aggregate. Of course, general aggregates can also be used, but those that contribute to weight reduction are usually desirable. For example, porous silica, porous aluminum, porous calcium silicate, talc, kaolin, activated clay, diatomaceous earth, perlite, bentonite and the like can be exemplified.

  The trace radioactive rare earth mineral is not particularly limited as long as it generates negative ions, and preferably always generates negative ions, and examples thereof include thorium, radium, uranium ore, and tourmaline.

  According to the present invention, a water purification agent having an extremely excellent purification performance can be obtained. For example, purification in a grease trap, drinking water, washing water, flower water, etc. can be performed or produced very efficiently.

  Hereinafter, embodiments of the present invention will be described in detail with reference to examples (wherein, parts indicate parts by weight).

  100 parts of natural humic allophane soil as active soil, 50 parts of sodium silicate as binder, 10 parts of calcium silicate as aggregate, kneaded in a vacuum kneader, and molded into a ball of about 50 mm (diameter), Hot air drying was performed at 50 ° C. to produce a cleaning material for degrading grease traps.

  100 parts of natural humic kanuma soil as active soil and 80 parts of trimethoquin silicic acid as binder and 20 parts of kaolin as aggregate are kneaded in a vacuum kneader, and a ball of about 20 mm (diameter) is formed, 150 Hot air drying was performed at ℃ to produce a cleaning material for degrading grease traps.

  100 parts of artificial zeolite as active soil, 10 parts each of humic acid and fulvic acid, 100 parts of chitosan aqueous solution as a binder, kneaded with a vacuum kneader and formed into a cylindrical shape with an outer diameter of about 3 mm and a length of 20 mm Then, 80 ° C. hot air drying was performed to manufacture a grease trap oil-degrading purification material.

  100 parts of natural humic allophane as active soil, 60 parts of humic acid, 100 parts of sodium polyacrylate aqueous solution as a binder are kneaded with a vacuum kneader and molded into a cylindrical shape with an outer diameter of about 6 mm and a length of 25 mm, The product was subjected to hot air drying at 80 ° C. to produce a cleaning material for decomposing grease traps.

  100 parts of natural humic allophane as active soil, 20 parts of fulvic acid, 20 parts of bone ash and 100 parts of chitosan aqueous solution as a binder are kneaded with a vacuum kneader and molded into a ball shape with a diameter of about 100 mm, at 100 ° C. Hot air drying was performed to produce a water purification material for producing reduced water.

  Kneaded 100 parts of natural humic kanuma soil as active soil, 20 parts of synthetic zeolite, 50 parts of tourmaline, 50 parts of dove earth kneaded with knot clay as a binder and 10 parts of bone ash with a vacuum clay kneader, Formed into a cylindrical shape with an outer diameter of about 10 mm and a length of 25 mm, processed into a spherical product of about 13 mm with a spherical granulator, dried with hot air at 100 ° C., and then reduced and fired at 1200 ° C. for 5 hours using a reduction furnace. Thus, a purification material for tap water was manufactured.

  100 parts of natural humic kanuma earth as active soil, 20 parts of synthetic zeolite, 10 parts of radium ore, 50 parts of dove earth kneaded with knot clay as binder and 10 parts of bone ash are kneaded with a vacuum clay kneader, Molded into a cylindrical shape with an outer diameter of about 10 mm and a length of 25 mm, processed into a spherical product of about 13 mm with a spherical granulator, dried at 100 ° C. with hot air, and then reduced and fired at 1200 ° C. for 5 hours using a reduction furnace. Thus, a purification material for tap water was manufactured.

  After processing 100 parts of natural humic kanuma soil as active soil, 5 parts each of humic acid and fulvic acid, 5 parts of radium ore, and 50 parts of powdered kaolin as a binder into a spherical product of about 10 mm, Hot air drying was performed at a temperature of 5 ° C., and oxidation baking was performed at 1200 ° C. for 5 hours using an electric furnace to prepare a tap water purification material.

  The example which used this invention purification material obtained in Examples 1-4 for the grease trap purification | cleaning below is shown below. FIG. 1 is a longitudinal side view showing an example of a septic tank according to an embodiment of the present invention. In Fig. 1, 1 drainage trap, 2 grease (oil), 3 dust / residue, 4 baskets, 5 partition plates, 6 drainage port, 7 air blow, 8 grease trap decomposition and purification material, cooking wastewater is It is stored in a wastewater tank called a grease trap and drained from here. In this wastewater tank, animal oil, vegetable oil, etc., as well as various filths are collected at the bottom without being decomposed, and become sludge. The grease trap decontamination and purification material of the present invention is put into this staying sludge, and the grease trap becomes dirty in order to flow the purified water as waste water by decomposing the remaining oil and sludge by air blowing. It can always be kept clean. 1 will be further described. The sewage is put into the basket (4), and large sewage is classified here and flows into the lower part. Dust and residue (3) in the inflowing sewage are collected at the bottom and grease (oil) (2) is collected at the top. On the other hand, air blow is performed from the air blow (7), and the dust / residue (3) is decomposed in cooperation with the purifier (8) of the present invention, the grease oil (2) is decomposed in the same manner, and the drain trap ( Clean water is discharged from 1).

  Two molded balls of about 50 mm obtained in Example 1 were put into a grease trap and subjected to appropriate aeration, and then collapsed in about 1 hour. Five days later, the water collected from the water in the grease trap was observed with a microscope. As a result, protozoa such as Balticella and Opelcaria (popular name moth beetle) were generated, and it was confirmed that clarification progressed. This is because the bacteria group decomposes and propagates the sewage flowing into the septic tank, and the bacteria group and organic matter are absorbed by the beetle and the like, and clear and clear water can be obtained by the clarification effect. If there are only bacteria groups, bacteria that broke down and propagated wastewater will also flow out, so organic substances may be taken out of the tank. In particular, in recent septic tanks, the contact oxidation method has become the mainstream, and it has become an important role to fix sticky ciliates on the purification material. Ten days later, the septic tank was clean and misleading, and the water was clear. Along with the purification of the grease trap, the generation of odors has been eliminated. This effect lasted for about one month, and when two more were added after one month, a continuous effect was obtained. Regular replenishment and aeration checks helped clean up grease traps throughout the country, improve the hygienic kitchen environment and solve sewage problems. In addition, it was substantially the same result also when it replaced with Example 1 and each purification material of Examples 2-4 was used.

As soon as Example 5 is put into water, it collapses and purifies the water. An example of changing the acidic water to neutral will be shown as a method for easily seeing the situation.
Experimental method (ii) Add 2 ml of indicator (0.05% bromocresol green) to 200 ml of water (neutral color is blue).
(B) Add about 5 ml of 1% hydrochloric acid to make acidic water. If the color remains blue, add it gradually until it becomes yellow (about pH 3).
(C) Put in one of the purification material of Example 5 and stir occasionally.
(D) Turns blue in 5 to 10 minutes and changes from acidic to neutral.

  The results of measuring the pH, electrical conductivity, and redox potential of the particles of Example 5 are shown in FIGS. 2, 3 and 4 (900 ml of ion-exchanged water, 5.8 g of particles of Example 5).

  Using the approximately 15 mm spherical sintered water purifier obtained in Example 7, a sterilization test for vegetables was performed in comparison with a commercially available sterilization detergent. “Purelux” is a disinfectant containing 6% sodium hypochlorite, soaked in a solution diluted 600 times with water for 10 minutes, and then thoroughly washed with water. “Vegetas” is a fatty acid detergent exclusively for vegetables and fruits that consists of food additives and foods. It was soaked in water diluted 100 times with water for 10 minutes, and then washed thoroughly with water. The spherical sintered product obtained in Example 8 was immersed in a solution obtained by adding 500 g to 50 liters of water for 10 minutes, and then thoroughly washed with water. Using these sterilized water, the sterilizing effect of E. coli and general viable counts on lettuce, cabbage, cucumber and silkworm was examined. The results are shown in Tables 1 and 2.

However, Table 1 shows the average number of E. coli, 1 lot 4 times, and 6 lots 24 times in total, and Table 2 shows general bacteria, 1 lot 4 times, 6 lots, 24 times in total.
The spherical sintered product of Example 7 was found to have better sterilization performance than the commercially available sterilization detergent.

  Sixty spherical sinter water purifiers prepared in Example 8 were put into a 60 liter water tank and 30 medaka fish were bred. Survival of medaka was observed in the absence of oxygen aeration in the presence or absence of a spherical sintered water purifier. Without the spherical sintered water purifier, all died on the 16th day, but most of those using the sintered water purifier were still alive after 3 months.

  For the vase in which 5 spherical sintered water purifiers prepared in Example 8 were put in 1 liter of water and those not yet put in, 10 carnations were put and the life extension effect on the flowers was observed. Those that had not been charged had wilted after 3 days, but those that had been charged with the spherical sintered water purifier were healthy even after 5 days.

1 is an explanatory diagram showing an example of a purification device when using the purification material of the present invention. FIG. 2 is a graph showing the results of measuring the pH of the purification material of Example 5 of the present invention. FIG. 3 is a graph showing the results of measuring the electrical conductivity of the purification material. FIG. 4 is a graph showing the results of measuring the redox potential of the purification material.

Explanation of symbols

1: Drain strap 2: Grease (oil)
3: Garbage / residue 4: Basket 5: Separator 6: Drainage port
7: Air blow 8: Purification material

Claims (9)

  A water purification material comprising active soil for ion exchange.   The active soil is composed of an inorganic and / or organic component composed of at least one of silicon, alumina, allophane, humic acid, fulvic acid and the like, and a small amount of radioactive rare earth mineral that generates negative ions. The water purification material as described.   The water purification material according to claim 1 or 2, wherein the active soil for performing ion exchange is made of powder and / or clay.   A sintered water purification agent obtained by kneading the water purification material according to claim 3 with water and forming it as necessary, and then firing it at 800 to 1300 ° C in an oxidizing or reducing atmosphere.   It has a mixing process of mixing the powder and / or clay of active soil which performs ion exchange according to claim 1 or 2, a molding process of molding the mixture, and a process of drying the molded article at a temperature of 150 ° C or lower. A method for producing a water purification material characterized by the above.   A mixing step of mixing powder and / or clay of active soil for performing ion exchange according to claim 1 or 2, a forming step of forming the mixture, and baking the formed product at a temperature of 800 to 1300 ° C in an oxidizing or reducing atmosphere. A process for producing a water purification material, characterized by comprising:   A method for treating oil-containing organic wastewater, wherein the oil-containing organic wastewater remaining in the grease trap is purified using the water purification material according to any one of claims 1 to 4.   A method for producing water, comprising producing drinking water and / or purified water for washing using the water purification material according to claim 1.   A method for producing water, comprising using the water purification material according to any one of claims 1 to 4 to produce purified water for prolonging the life of fresh flowers.