JP2006327963A - Purifying agent for polluted water, polluted soil, or waste material and method for purifying the same - Google Patents
Purifying agent for polluted water, polluted soil, or waste material and method for purifying the same Download PDFInfo
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Abstract
Description
本発明は、汚水、汚染土、または汚物の浄化剤およびこれらの浄化方法に関する。さらに詳細には、本発明の浄化剤を下水槽、工業用水槽、貯水槽、養魚槽、池などの汚水や工場跡地、農耕地などの汚染土、畜舎、ゴミ置場および赤潮の発生した海洋、トイレなどに使用すると、塩素化合物や硫化物、塩類などの影響を受けることなく、除菌、脱臭、分解、還元などにより環境を浄化することができ、しかも銀陽イオンのように対象物に沈着することがないため、汚れることがなく、安全性が高く、効果が持続する汚水、汚染土、汚物の浄化剤および浄化方法に関する。 The present invention relates to a purification agent for sewage, contaminated soil, or filth, and a purification method thereof. More specifically, the purifying agent of the present invention is used in sewage tanks, industrial water tanks, water storage tanks, fish tanks, ponds and other sewage and factory sites, agricultural soils and other contaminated soil, barns, garbage storage, and red tide-generated oceans, When used in toilets, etc., the environment can be purified by sterilization, deodorization, decomposition, reduction, etc. without being affected by chlorine compounds, sulfides, salts, etc., and deposited on the object like silver cations. Therefore, the present invention relates to a sewage, contaminated soil, a septic purifier, and a purification method that are not contaminated, have high safety, and have a long-lasting effect.
汚水や汚染土、汚物の浄化剤としてハロゲン化合物、硫化物、その他、酸や苛性ソーダ、その他のアルカリ、さらに農薬などが使用されているが、いずれも毒性があったり、副作用があったり、効果が一過性であったりして問題を有している。 Halogen compounds, sulfides, acids, caustic soda, other alkalis, and pesticides are used as sewage, soil, and dirt purification agents, all of which are toxic, have side effects, and are effective. It is transient and has problems.
本発明は、以上のような従来技術の課題を背景になされたもので、成分として有害物を含まず、また汚染物の影響を受けずに、除菌、脱臭、分解、還元などにより環境を浄化することができ、しかも浄化効果が持続し、安全性が高く、コストが安い汚水、汚染土、汚物の浄化剤および浄化方法を提供することを目的とする。 The present invention has been made against the background of the problems of the prior art as described above, and does not contain harmful substances as components, and is not affected by contaminants, thereby eliminating the environment by sterilization, deodorization, decomposition, reduction, etc. An object of the present invention is to provide a sewage, contaminated soil, septic purifier, and a purification method that can be purified, have a purification effect, are highly safe, and are low in cost.
本発明は、（ａ）酸化銀を銀換算で５重量部に対し、（ｂ）チオ硫酸ソーダを２０〜４５重量部、および（ｃ）水を５０〜７５重量部〔ただし、（ａ）＋（ｂ）＋（ｃ）＝１００重量部〕を配合した汚水、汚染土、または汚物の浄化剤に関する。
次に、本発明は、汚水、汚染土、または汚物に上記の浄化剤を１トン当たり１０〜１，０００ｇ（１ｋｇ（Ｌ）当たり銀換算で０．５〜５０ｍｇ）添加または散布することを特徴とする汚水、汚染土、汚物の浄化方法に関する。
The present invention relates to (a) 5 parts by weight of silver oxide in terms of silver, (b) 20 to 45 parts by weight of sodium thiosulfate, and (c) 50 to 75 parts by weight of water [provided that (a) + (B) + (c) = 100 weight parts].
Next, the present invention is characterized in that 10 to 1,000 g (0.5 to 50 mg in terms of silver per 1 kg (L)) of the above-mentioned purifying agent is added to or dispersed in sewage, contaminated soil, or filth. The present invention relates to a method for purifying sewage, soil, and filth.
本発明の浄化剤は、有害物を含まず、汚染物の影響も受けないため、効率よく環境を浄化（除菌、脱臭、分解、還元など）することができる。また、本発明の浄化剤は、浄化効果が持続し、コストが安いため、経済面でも有効である。 Since the purification agent of the present invention does not contain harmful substances and is not affected by contaminants, it can efficiently purify the environment (such as sterilization, deodorization, decomposition, and reduction). Moreover, the purification agent of the present invention is effective in terms of economy since the purification effect is sustained and the cost is low.
本発明は、（ａ）酸化銀を銀換算で５重量部に対し、（ｂ）チオ硫酸ソーダを２０〜４５重量部、および（ｃ）水を５０〜７５重量部〔ただし、（ａ）＋（ｂ）＋（ｃ）＝１００重量部〕を主成分とする汚水、汚染土、または汚物の浄化剤に関するものである。
以下、本発明の浄化剤について、各成分別に以下に説明する。
The present invention relates to (a) 5 parts by weight of silver oxide in terms of silver, (b) 20 to 45 parts by weight of sodium thiosulfate, and (c) 50 to 75 parts by weight of water [provided that (a) + (B) + (c) = 100 parts by weight] as a main component.
Hereinafter, the purification agent of the present invention will be described below for each component.
（ａ）酸化銀：
（ａ）酸化銀（Ａｇ２Ｏ）は、（ｂ）チオ硫酸ソーダに対し１：１〜３（重量比）の割合で溶けて銀錯イオン（［Ａｇ（Ｓ２Ｏ３）２］３−や［Ａｇ２（Ｓ２Ｏ３）６］１０−など）を作る。銀陽イオンは、高い浄化力を有しているが、他の物質と結合するため、浄化剤として使用した際は、浄化力をほとんど発現しない。一方、銀錯イオンは、銀陽イオンと異なり、汚染された環境や海水中でも他の物質と容易に結合しないため、銀イオン本来の抗菌性、脱臭性、有機化合物分解性を示す。
（ａ）酸化銀は、例えば以下のようにして得ることができる。すなわち、硝酸銀ＡｇＮＯ３に苛性ソーダ水溶液を加えると、黒褐色の沈殿ができる。この上澄液を除去した後、純水で洗浄すると酸化銀の微粉末ができる。
出発原料は、その他の銀塩を使うこともできる。
(A) Silver oxide:
(A) silver oxide (Ag 2 O) is, (b) 1 to sodium thiosulfate: 1-3 silver complex melt in a weight ratio of ions ([Ag (S 2 O 3 ) 2] 3- And [Ag 2 (S 2 O 3 ) 6 ] 10- etc.). The silver cation has a high detergency, but binds to other substances, and therefore, when used as a decontaminant, it hardly exhibits the detergency. On the other hand, silver complex ions, unlike silver cations, do not easily bind to other substances even in a contaminated environment or in seawater, and thus exhibit the original antibacterial properties, deodorizing properties, and organic compound decomposability of silver ions.
(A) Silver oxide can be obtained, for example, as follows. That is, when a sodium hydroxide aqueous solution is added to silver nitrate AgNO 3 , a blackish brown precipitate is formed. After removing this supernatant, washing with pure water produces fine silver oxide powder.
The starting material can also use other silver salts.
（ｂ）チオ硫酸ソーダ：
（ｂ）チオ硫酸ソーダ（Ｎａ２Ｓ２Ｏ３・５Ｈ２Ｏ）は、(ａ)酸化銀と銀錯イオンを作成するために使用するほか、脱塩素や還元および銀錯イオンとの相乗効果による農薬その他有機化合物の分解などに寄与する。
(B) Sodium thiosulfate:
(B) Sodium thiosulfate (Na 2 S 2 O 3 · 5H 2 O) is used to create (a) silver oxide and silver complex ions, and synergistic effects with dechlorination and reduction and silver complex ions It contributes to the decomposition of agricultural chemicals and other organic compounds by
本発明において（ｂ）成分は、酸化銀５重量部（銀換算）に対し、２０〜４５重量部、好ましくは、２５〜４０重量部である。（ｂ）成分が２０重量部未満では性能が発現し難く、一方、４５重量部を超えると溶解し難くなり好ましくない。 In this invention, (b) component is 20-45 weight part with respect to 5 weight part (silver conversion) of silver oxide, Preferably, it is 25-40 weight part. When the component (b) is less than 20 parts by weight, the performance is hardly exhibited, while when it exceeds 45 parts by weight, it is difficult to dissolve, which is not preferable.
（ｃ）水：
本発明において、（ｃ）水は、（ａ）、（ｂ）成分を溶かすために使用される。
（ｃ）水としては、水道水、蒸留水、イオン交換水などのほか、（ａ）〜（ｂ）成分が水溶液や水分散体で用いられる場合には、これらに含有される水も包含される。
水の使用量は、酸化銀を銀換算で５重量部に対し、５０〜７５重量部、好ましくは５５〜７０重量部である。５０重量部未満では、（ａ），（ｂ）成分が溶解し難く、一方、７５重量部を超えると、（ｂ）成分が必要量確保できなくなる。
(C) Water:
In the present invention, (c) water is used to dissolve the components (a) and (b).
(C) As water, tap water, distilled water, ion-exchanged water, etc., and when the components (a) to (b) are used in an aqueous solution or a water dispersion, water contained in these is also included. The
The usage-amount of water is 50-75 weight part with respect to 5 weight part of silver oxide in conversion of silver, Preferably it is 55-70 weight part. If the amount is less than 50 parts by weight, the components (a) and (b) are difficult to dissolve. On the other hand, if the amount exceeds 75 parts by weight, the necessary amount of the component (b) cannot be ensured.
本発明の浄化剤には、その他必要に応じて界面活性剤、微粒状金属化合物などを含むことができる。 The purification agent of the present invention can contain a surfactant, a fine metal compound, and the like as necessary.
本発明の浄化剤は、水溶液であり、その調製方法としては、（ａ）,（ｂ）成分に（ｃ）成分を加えて攪拌、混合しながら溶解させて調整する。また、その固形分濃度は、２５〜５０重量％、好ましくは３０〜４５重量％程度である。
本発明の浄化剤のｐＨは、９．０〜１０．５程度である。
The purifying agent of the present invention is an aqueous solution, and the preparation method thereof is prepared by adding the component (c) to the components (a) and (b) and dissolving them while stirring and mixing. Moreover, the solid content concentration is 25 to 50% by weight, preferably about 30 to 45% by weight.
The pH of the cleaning agent of the present invention is about 9.0 to 10.5.
次に、本発明は、上記浄化剤を汚水、汚染土、汚物１トン当たり１０〜１，０００ｇ（１ｋｇ当たり銀換算で０．５〜５０ｍｇ）、好ましくは２０〜２００ｇ添加および／または散布する浄化方法に関する。添加量が１０ｇ未満では、浄化効果が出にくく、一方、１，０００ｇを超えると過剰効果となったり、コスト高になり好ましくない。 Next, the present invention provides a purification agent in which 10 to 1,000 g (0.5 to 50 mg in terms of silver per kg), preferably 20 to 200 g, is added and / or sprayed with the above-mentioned purification agent per 1 ton of sewage, contaminated soil, and filth. Regarding the method. If the amount added is less than 10 g, it is difficult to obtain a purification effect. On the other hand, if it exceeds 1,000 g, an excessive effect is obtained, and the cost is not preferred.
本発明の浄化剤によって浄化される汚水、汚染土、汚物に含まれる汚染物としては、微生物、脂質、有機・無機化合物などが挙げられる。
本発明の浄化剤を汚水に用いる際は、スプレーなどで散布して用い、汚染土に用いる際は掘り返して散布し混合して用い、汚物に用いる際はスプレーなどで散布して使用するものであるが、上記の方法に限定されるものではない。また、必要に応じて有機・無機化合物などと組み合わせて使用することも可能である。また、汚水、汚染土、汚物との接触時間は数分〜数時間で効果を発揮する。
Examples of contaminants contained in the sewage, contaminated soil, and filth that are purified by the purifying agent of the present invention include microorganisms, lipids, and organic / inorganic compounds.
When the cleaning agent of the present invention is used for sewage, it is used by spraying, etc., when used for contaminated soil, it is dug up and sprayed and mixed, and when used for filth, it is used by spraying etc. However, it is not limited to the above method. Further, it can be used in combination with an organic / inorganic compound as required. Moreover, the contact time with sewage, contaminated soil, and filth is effective for several minutes to several hours.
本発明の浄化方法において、その浄化力の持続期間は、被覆されない限り継続し、浄化終了後は汚物の無機化合物と別の銀化合物を形成したり、有機・無機化合物に取り込まれたりして安定化する。 In the purification method of the present invention, the duration of the purification power lasts as long as it is not covered, and after the purification is completed, the inorganic compound of the filth forms another silver compound or is taken into the organic / inorganic compound and is stable. Turn into.
以下、実施例を挙げ、本発明をさらに具体的に説明するが、本発明は、特許請求の範囲を越えない限り、以下の実施例に限定されるものではない。 EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to the following examples unless it exceeds the scope of the claims.
実施例１
表１に示す浄化剤Ａ−１を調製した。成分比は、以下に示すとおりである。
Example 1
The purification agent A-1 shown in Table 1 was prepared. The component ratio is as shown below.
（ａ）−１：酸化銀
（ｂ）−１：チオ硫酸ソーダ
（ｃ）−１：水道水
(A) -1: Silver oxide (b) -1: Sodium thiosulfate (c) -1: Tap water
試験１
本発明の抗菌性を調べるため、次の２種の試験液および対照液１を作成した。
試験液１：Ａ−１ ０．２ｇに３重量％食塩水を９９９．８ｇ加えた（銀換算で約１０ｍｇ／ｋｇ）。
試験液２：Ａ−１ ０．６ｇに３重量％食塩水を９９９．４ｇ加えた（銀換算で約３０ｍｇ／ｋｇ）。
対照液：３重量％食塩水
試験液１、２および対照液１に、大腸菌および黄色ブドウ球菌を滴下して、室温で６時間保存後、および２４時間保存後の生菌数を測定した。測定結果を表２に示す。
Test 1
In order to examine the antibacterial properties of the present invention, the following two types of test solutions and control solution 1 were prepared.
Test solution 1: 999.8 g of 3 wt% saline was added to 0.2 g of A-1 (about 10 mg / kg in terms of silver).
Test solution 2: 999.4 g of 3 wt% saline was added to 0.6 g of A-1 (about 30 mg / kg in terms of silver).
Control solution: 3% by weight saline solution E. coli and Staphylococcus aureus were added dropwise to test solutions 1 and 2 and control solution 1, and the number of viable bacteria was measured after storage at room temperature for 6 hours and after storage for 24 hours. The measurement results are shown in Table 2.
表２より、本発明の浄化剤を含む試験液１，２は、対照液１に比べ、大腸菌、黄色ブドウ球菌に対して優れた除菌力を有していることが明らかである。 From Table 2, it is clear that the test solutions 1 and 2 containing the purifying agent of the present invention have superior sterilizing power against Escherichia coli and Staphylococcus aureus as compared with the control solution 1.
試験２
本発明の抗菌性を調べるため、次の２種の試験液および対照液２を作成した。
試験液３：Ａ−１ ０．３ｇに水道水を９９９．７ｇ加えた（銀換算で約１５ｍｇ／ｋｇ）。
試験液４：Ａ−１ ０．５ｇに水道水を９９９．５ｇ加えた（銀換算で約２５ｍｇ／ｋｇ）。
対照液２：水道水
試験液３，４および対照液２に黒麹カビおよびレジオネラ、オーレオバシジウムを滴下し、室温で２４時間保存後、および４８時間保存後の生菌数を測定した。この結果を表３に示す。
Test 2
In order to examine the antibacterial properties of the present invention, the following two types of test solutions and control solution 2 were prepared.
Test solution 3: 999.7 g of tap water was added to 0.3 g of A-1 (about 15 mg / kg in terms of silver).
Test solution 4: 999.5 g of tap water was added to 0.5 g of A-1 (about 25 mg / kg in terms of silver).
Control solution 2: tap water Black mold, Legionella, and Aureobasidium were added dropwise to test solutions 3 and 4 and control solution 2, and the viable cell count was measured after storage at room temperature for 24 hours and after storage for 48 hours. The results are shown in Table 3.
表２より、本発明の浄化剤を含む試験液３，４は、対照液２に比べ、黒麹カビ、レジオネラ、オーレオバシジウムに対して優れた除菌力を有していることが明らかである。 From Table 2, it is clear that the test liquids 3 and 4 containing the purifying agent of the present invention have superior sterilizing power against black mold, legionella, and aureobasidium compared to the control liquid 2. is there.
試験３
本発明の防藻性を調べるため、試験液５および対照液３を作成した。
試験液５：液体培地２５０ｍｌにＡ−１ ０．２ｍｌを添加した（銀換算で約１０ｍｇ／ｋｇ）。
対照液３：液体培地２５０ｍｌにＡ−１ ０．００２５ｍｌを添加した（銀換算で約０．１２５ｍｇ／ｋｇ）。
試験液５および対照液３を照度３，０００ｌｘの光照射下、温度２５℃で１４日間培養し、７日ごとに藻の生育の有無を肉眼で観察した。
試験菌株（藻）はＣｈｌｏｒｅｌｌａ ｐｙｒｅｎｏｉｄｏｓａ ＮＩＥＳ Ｎｏ．２２６（クロレラ）を使用した。液体培地（増菌用培地）は硝酸カルシウム４水和物（１５０ｍｇ）、硝酸カリウム（１００ｍｇ）、β−グリセロリン酸ナトリウム（５０ｍｇ）、硫酸マグネシウム７水和物（４０ｍｇ）、トリスアミノメタン（５００ｍｇ）、チアミン塩酸塩（１０μｇ）、ビタミンＢ１２、ビオチン（各０．１μｇ）、ＰＩＶ金属（３ｍｌ）、水９９７ｍｌの組成で作成した。
防藻効果試験結果を表４に示す。
Test 3
In order to examine the algal resistance of the present invention, Test Solution 5 and Control Solution 3 were prepared.
Test solution 5: 0.2 ml of A-1 was added to 250 ml of liquid medium (about 10 mg / kg in terms of silver).
Control solution 3: 0.0025 ml of A-1 was added to 250 ml of liquid medium (about 0.125 mg / kg in terms of silver).
The test solution 5 and the control solution 3 were cultured for 14 days at a temperature of 25 ° C. under light irradiation with an illuminance of 3,000 lx, and the presence or absence of algae growth was visually observed every 7 days.
The test strain (algae) was Chlorella pyrenoidosa NIES No. 226 (Chlorella) was used. Liquid medium (medium for enrichment) is calcium nitrate tetrahydrate (150 mg), potassium nitrate (100 mg), sodium β-glycerophosphate (50 mg), magnesium sulfate heptahydrate (40 mg), trisaminomethane (500 mg), It was prepared with a composition of thiamine hydrochloride (10 μg), vitamin B12, biotin (each 0.1 μg), PIV metal (3 ml), and water 997 ml.
Table 4 shows the results of the antialgae effect test.
表４より、本発明の浄化剤を規定量加えた試験液５では、防藻効果が発揮されたが、本発明の浄化剤が規定量より少ない対照液３では防藻効果が得られないことが確認された。 From Table 4, the test solution 5 to which the specified amount of the purifying agent of the present invention was added exhibited the algae-proofing effect, but the control solution 3 having less than the specified amount of the purifying agent of the present invention did not provide the algae-controlling effect. Was confirmed.
試験４
本発明の脱臭性、分解性を調べるため、水道水５００ｍｌにＡ−１ ０．３ｍｌを添加した液（銀換算で約１５ｍｇ／ｋｇ）に綿布（１０×１０ｃｍ）３枚を浸し、絞って乾燥させ、７日間室内に放置して、試験品１１を３枚作成した。
試験方法
使用ガスおよび初期濃度
（１）硫化水素：４５ｐｐｍ
（２）ホルムアルデヒド：３０ｐｐｍ
（３）アンモニア：６５ｐｐｍ
５Ｌ容量のテドラーバックに試験品１１を１枚および使用ガスを封入し、室温で所定時間放置し（３０分、１２０分、２４０分）、検知管を用いて、バック内のガス濃度を測定した。また、対照として、バック内にガスのみを封入し、試験品１１と同様の操作を行った。この試験結果を表５〜７に示す。
Test 4
In order to examine the deodorizing and degrading properties of the present invention, three cotton cloths (10 × 10 cm) are dipped in a solution (approximately 15 mg / kg in terms of silver) containing 500 ml of tap water and 500 ml of tap water, and then dried by squeezing. And left to stand indoors for 7 days to prepare three test pieces 11.
Test method Gas used and initial concentration (1) Hydrogen sulfide: 45 ppm
(2) Formaldehyde: 30ppm
(3) Ammonia: 65 ppm
One test sample 11 and a working gas were sealed in a 5 L capacity Tedlar bag, left at room temperature for a predetermined time (30 minutes, 120 minutes, 240 minutes), and the gas concentration in the bag was measured using a detector tube. Further, as a control, only the gas was sealed in the bag, and the same operation as that of the test sample 11 was performed. The test results are shown in Tables 5-7.
表５〜７より、本発明の浄化剤を含む試験品は、優れた脱臭効果を有することが明らかである。 From Tables 5-7, it is clear that the test article containing the purification agent of the present invention has an excellent deodorizing effect.
試験５
本発明の浄化剤の安全性を確認するため、以下の内容で、急性毒性試験を行った。
１．投与経路：経口
２．試験動物：マウス（雄および雌 約５週令）
３．試験液：Ａ−１を注射用蒸留水に溶解し、５．８、６．９、８．３および１０％（ｗ／ｖ）水溶液を調整し、これを試験液６，７，８，９とした。
４．ＬＤ５０値の計算方法：プロピット法
試験結果を表８に示す。
Test 5
In order to confirm the safety of the cleaning agent of the present invention, an acute toxicity test was conducted with the following contents.
1. Route of administration: Oral Test animals: mice (male and female, about 5 weeks old)
3. Test solution: A-1 was dissolved in distilled water for injection to prepare 5.8, 6.9, 8.3 and 10% (w / v) aqueous solutions, which were used as test solutions 6, 7, 8, 9 It was.
4). Calculation method of LD 50 value: Propit method Table 8 shows the test results.
表８より、死亡したマウスはおらず、本発明の浄化剤が急性毒性を有さず、安全であることが明らかとなった。 From Table 8, it was clarified that no mouse died and the cleaning agent of the present invention has no acute toxicity and is safe.
本発明の浄化剤は、有害物を含まず、コストも安いことから、汚水、汚染土、汚物の浄化、特に下水槽、工業用水路、貯水槽、養魚槽、池などの汚水、工場跡地などの汚染土、ごみ置き場、畜舎、赤潮の発生した海洋、トイレなどの浄化に好適に使用可能である。
Since the purification agent of the present invention does not contain harmful substances and is low in cost, the purification of sewage, contaminated soil, filth, particularly sewage in sewage tanks, industrial waterways, water storage tanks, fish tanks, ponds, etc. It can be suitably used for the purification of contaminated soil, garbage storage, barns, oceans with red tides, toilets, etc.
Claims (2)
（ｂ）チオ硫酸ソーダを２０〜４５重量部、および
（ｃ）水を５０〜７５重量部
〔ただし、（ａ）＋（ｂ）＋（ｃ）＝１００重量部〕を、
配合した汚水、汚染土、または汚物の浄化剤。 (A) With respect to 5 parts by weight of silver oxide in terms of silver,
(B) 20 to 45 parts by weight of sodium thiosulfate, and (c) 50 to 75 parts by weight of water (provided that (a) + (b) + (c) = 100 parts by weight)
Formulated sewage, soil, or filth cleaner.
The purification agent according to claim 1 is added and / or sprayed in an amount of 10 to 1,000 g (0.5 to 50 mg in terms of silver per kg (L)) per ton of sewage, contaminated soil, or filth. To clean up sewage, soil, or filth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005151495A JP2006327963A (en) | 2005-05-24 | 2005-05-24 | Purifying agent for polluted water, polluted soil, or waste material and method for purifying the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005151495A JP2006327963A (en) | 2005-05-24 | 2005-05-24 | Purifying agent for polluted water, polluted soil, or waste material and method for purifying the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2006327963A true JP2006327963A (en) | 2006-12-07 |
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ID=37550037
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005151495A Withdrawn JP2006327963A (en) | 2005-05-24 | 2005-05-24 | Purifying agent for polluted water, polluted soil, or waste material and method for purifying the same |
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| Country | Link |
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| JP (1) | JP2006327963A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008285363A (en) * | 2007-05-17 | 2008-11-27 | Konoike Constr Ltd | Repairing agent and repairing method for concrete structure |
-
2005
- 2005-05-24 JP JP2005151495A patent/JP2006327963A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008285363A (en) * | 2007-05-17 | 2008-11-27 | Konoike Constr Ltd | Repairing agent and repairing method for concrete structure |
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