JPH06154777A - Treating device for microorganism in bathtub water - Google Patents
Treating device for microorganism in bathtub waterInfo
- Publication number
- JPH06154777A JPH06154777A JP2411323A JP41132390A JPH06154777A JP H06154777 A JPH06154777 A JP H06154777A JP 2411323 A JP2411323 A JP 2411323A JP 41132390 A JP41132390 A JP 41132390A JP H06154777 A JPH06154777 A JP H06154777A
- Authority
- JP
- Japan
- Prior art keywords
- water
- bathtub
- tower
- treatment
- microbial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、浴槽水の微生物処理
装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for treating microorganisms in bath water.
【０００２】一般に従来より行なわれていた浴槽水等の
用廃水の浄化法としては、砂濾過、活性炭濾過、フィル
ター濾過と塩素等の薬品殺菌を組み合わせた方法が採用
されている。As a conventional purification method for wastewater such as bath water, sand filtration, activated carbon filtration, and a method combining filter filtration and chemical sterilization such as chlorine have been adopted.
【０００３】しかし、この方法では用廃水に含有してい
る有機物、尿素、アンモニア等を活性炭に吸着させるに
は限度がある。また、活性炭吸着は長時間の使用が不可
能である。However, this method has a limit in adsorbing organic matter, urea, ammonia, etc. contained in the waste water to activated carbon. In addition, activated carbon adsorption cannot be used for a long time.
【０００４】また、塩素等の薬品処理は処理水に塩素等
が溶解するため、人体への影響が問題になる。Further, in the treatment of chemicals such as chlorine, since chlorine and the like are dissolved in treated water, the influence on the human body becomes a problem.
【０００５】一方、ケイ酸SiO2を主成分とする天然多孔
質珪藻土としては、例えばクリストバライトの焼成品
（商品名：クリスバール）の他、麦飯石、大谷石等の多
孔質石焼成品を挙げることができるが、このうちクリス
バールはその化学的組成が例えば下記のようであり、活
性炭、ゼオライト、セビオライトなど既存の吸着剤とは
異なる特性を有している。On the other hand, examples of natural porous diatomaceous earth containing silicate SiO 2 as a main component include, for example, cristobalite calcined products (trade name: Krisvar), and porous stone calcined products such as barley stones and Otani stones. However, among them, the chemical composition of Krisvar is as follows, for example, and it has characteristics different from existing adsorbents such as activated carbon, zeolite, and ceviolite.
【０００６】[0006]
【表１】 [Table 1]
【０００７】このクリストバライト焼成品の主な特性と
しては、（１）細孔径15〜200 、比表面積110 〜130m
2/g の多孔質物質、（２）空隙率40〜50% 、見掛比重1.
2、親水性、（３）ガス状或は水中のアンモニア、タンパ
ク質を強く吸着する、（４）優れた微生物付着性等を挙
げることができる。The main characteristics of this cristobalite calcined product are: (1) Pore size 15-200, specific surface area 110-130 m
2 / g porous material, (2) Porosity 40-50%, apparent specific gravity 1.
2. Hydrophilicity, (3) strongly adsorb ammonia and proteins in gaseous or water, (4) excellent microbial adhesion, etc.
【０００８】このうち特に微生物付着性能については、
生物膜流動層法の微生物媒体（担体）としてクリスバラ
イト焼成品（商品名：クリスバール）、活性炭、濾過
砂、アロフェンを用いて、媒体の性能試験を行なった結
果を下記表２〜表４に示すが、これより明らかなように
クリスバライト焼成品を媒体とした場合、530.6mg/g
（単位容積当たりでは366.1mg/ml) と他の媒体より極め
て大きな値となっており、微生物の媒体として優れた素
材であることを示している。[0008] Of these, especially regarding the microbial adhesion performance,
Table 2 and Table 4 below show the results of the performance test of the medium using Chrisvalite calcined product (trade name: Krisvar), activated carbon, filter sand, and allophane as the microbial medium (carrier) of the biofilm fluidized bed method. As shown, 530.6mg / g when using Chris barite calcined product as the medium
(366.1 mg / ml per unit volume), which is an extremely large value compared to other media, indicating that it is an excellent material as a media for microorganisms.
【０００９】[0009]
【表２】 [Table 2]
【００１０】[0010]
【表３】 [Table 3]
【００１１】[0011]
【表４】 [Table 4]
【００１２】このようなクリスバライト焼成品の微生物
媒体としての優れた性質を利用して用廃水の微生物処理
を行なう試みがなされている。Attempts have been made to carry out microbial treatment of wastewater for use by utilizing the excellent properties of the fired Chris barite as a microbial medium.
【００１３】[0013]
【発明が解決しようとする問題点】しかし、クリスバラ
イト焼成品を濾材とする微生物処理装置を使用して用廃
水の微生物処理を行なう場合、下記表５にも示すように
処理開始後15〜50日頃迄はＢＯＤ、ＣＯＤも安定して減
少し、また透過度も増加するが、50日以降においてはＢ
ＯＤ、ＣＯＤの減少は停止し、透過度も減少する傾向が
見られる。However, when microbial treatment of wastewater for use is carried out using a microbial treatment apparatus using a fired Chris Barite product as a filter medium, as shown in Table 5 below, 15 to 50 after the treatment is started. BOD and COD will decrease steadily until day to day, and the permeability will increase, but after 50 days, BOD and COD will increase.
It can be seen that the decrease in OD and COD has stopped and the permeability has also decreased.
【００１４】これは、微生物のクリスバライト焼成品固
着時には繁殖が盛んで、好気性になり、用廃水のＢＯ
Ｄ、ＣＯＤは安定して減少し、また用廃水の透過度は増
加するが、処理開始後50日頃より雑菌が成長繁殖し、こ
のため焼成品に固着した微生物の成長が阻害され、更に
新陳代謝による老廃微生物の脱落等によりＢＯＤ、ＣＯ
Ｄの減少が停止し、また用廃水の透過度が減少するもの
と推定される。[0014] This is because when microbial Chrisvalite burned products are fixed, they proliferate and become aerobic, and the BO of the waste water is used.
Although D and COD will decrease steadily and the permeability of the wastewater will increase, around 50 days after the start of the treatment, various bacteria will grow and propagate, which will inhibit the growth of microorganisms adhering to the baked product and further increase metabolism. BOD and CO due to the removal of waste microorganisms
It is estimated that the decrease of D will stop and the permeability of the wastewater will decrease.
【００１５】[0015]
【表５】 [Table 5]
【００１６】しかし、微生物の脱落は酸素と酵素の補給
によってある程度解消することができるが、微生物の成
長を阻害する雑菌の殺菌乃至除菌は酸素と酵素の補給で
は十分に行なうことができない。However, although the loss of microorganisms can be eliminated to some extent by supplementing oxygen and enzymes, the sterilization or eradication of bacteria that inhibit the growth of microorganisms cannot be sufficiently performed by supplementing oxygen and enzymes.
【００１７】また、塩素等の殺菌剤を加えて殺菌乃至除
菌する場合には、殺菌剤が被処理水中に溶存するため、
目的とする雑菌のほかに微生物処理装置内の微生物自体
が死滅してしまうので、一般に使用されているような殺
菌剤による処理はできない。When a sterilizing agent such as chlorine is added for sterilization or sterilization, the sterilizing agent is dissolved in the water to be treated.
In addition to the target miscellaneous bacteria, the microorganisms in the microbial treatment device will die, so treatment with a bactericide that is commonly used cannot be performed.
【００１８】[0018]
【問題点を解決するための手段】以上の問題点を解決す
るため、この発明ではケイ酸SiO2を主成分とする天然多
孔質系珪藻土鉱物の焼成品を濾材とした微生物処理装置
に処理すべき浴槽水を循環通水するとともに、該循環通
水路に紫外線殺菌装置を設けるようにした浴槽水の微生
物処理装置を提案するものである。[Means for Solving the Problems] In order to solve the above problems, according to the present invention, a fired product of a natural porous diatomaceous earth mineral containing SiO 2 as a main component is treated in a microbial treatment apparatus using a filter medium. The present invention proposes a microbial treatment apparatus for bath water that circulates water that should be circulated and an ultraviolet ray sterilizer is provided in the circulation water passage.
【００１９】ここで、ケイ酸SiO2を主成分とする天然多
孔質珪藻土としては、例えばクリストバライト焼成品、
麦飯石、大谷石等の多孔質石焼成品を挙げることができ
るが、このうちクリスバール焼成品については特に顕著
な効果が認められるが、他の焼成品、例えば麦飯石、大
谷石等の多孔質石焼成品についても十分な効果を発揮さ
せることができる。Here, as the natural porous diatomaceous earth containing silicate SiO 2 as a main component, for example, cristobalite calcined product,
Porous stone calcined products such as barley stone and Otani stone can be mentioned. Among them, a particularly remarkable effect is observed for the Krisvar calcined product, but other calcined products, for example, porosity of barley stone, Otani stone, etc. It is possible to exert a sufficient effect also on the stone-fired product.
【００２０】また、この発明で処理される浴槽水として
は、例えば家庭用の浴槽から排出されるもの、或は一般
公衆浴槽から排出されるもの何れをも含む。Further, the bath water treated in the present invention includes, for example, one discharged from a domestic bathtub and one discharged from a general public bathtub.
【００２１】更に、この発明で使用する微生物処理装置
は、上記焼成品を濾材として微生物膜流動層を形成する
もの、或は微生物固定層を形成するもの何れを使用する
ことができる。また、濾材としては粒状、ペレット状の
成形品等を使用することができる。なお、この発明で使
用する微生物膜流動層或は微生物固定層は上記焼成品の
みで濾材を構成してもよいが、上記焼成品のほかに例え
ばクリスバライト原石、サンゴ砂、ゼオライト等を加え
て濾材を構成してもよい。Further, the microbial treatment apparatus used in the present invention may be either a microbial membrane fluidized bed or a microbial immobilization layer which is formed by using the fired product as a filter medium. Further, as the filter medium, granular or pellet-shaped molded products and the like can be used. In addition, the microbial membrane fluidized bed or the microbial fixed layer used in the present invention may constitute a filter medium only with the above-mentioned fired product, but in addition to the above-mentioned fired product, for example, Chris barite rough stone, coral sand, zeolite, etc. are added. You may comprise a filter medium.
【００２２】また紫外線殺菌装置としては、例えば波長
230 〜270nm 程度の紫外線ランプを流れる被処理水中に
挿入した流水型水中挿入照射方式或は静止した被処理水
中に挿入した静水型水中挿入照射方式のものを使用する
ことができる。The UV sterilizer is, for example, a wavelength
It is possible to use a running water type underwater insertion irradiation method which is inserted into the water to be treated which flows an ultraviolet lamp of about 230 to 270 nm or a still water type underwater irradiation method which is inserted into the still water to be treated.
【００２３】更に、微生物処理装置内での処理効率を高
めるためには、処理すべき浴槽水の水温は室温〜50℃程
度が適当である。Further, in order to improve the treatment efficiency in the microorganism treatment apparatus, the temperature of the bath water to be treated is preferably room temperature to 50 ° C.
【００２４】[0024]
【作用】即ち、上述のように例えばクリスバライト焼成
品を濾材とした微生物処理装置に処理すべき浴槽水を循
環通水すると、濾材表面に形成された好気性の微生物吸
着層で浴槽水中の有機物の分解並びに一般細菌（雑菌）
の資化が行なわれるが、長時間の通水中に雑菌が繁殖す
ると、その一部は資化されずに吸着層を通過する。これ
は負荷過剰現象といわれる現象であるが、これにより例
えば浴槽中で雑菌が繁殖したり、微生物吸着層での有機
物の分解が減少したり、或は微生物吸着層が濾材表面よ
り剥離し、このため浴槽水が濁る等の弊害を生じたが、
この発明では微生物処理装置の出口に紫外線殺菌装置を
設けてあるため、浴槽水中の繁殖する雑菌が効果的に殺
菌乃至除菌され、負荷過剰現象が抑えられる。That is, as described above, when the bath water to be treated is circulated through the microbial treatment apparatus using, for example, a fired product of Chris barite as a filter medium, the aerobic microbial adsorption layer formed on the surface of the filter medium causes an organic substance in the bath water to be treated Decomposition and general bacteria (miscellaneous bacteria)
However, if miscellaneous bacteria grow in the water for a long time, part of them will pass through the adsorption layer without being assimilated. This is a phenomenon referred to as an overload phenomenon, but this causes, for example, miscellaneous bacteria to propagate in the bath, decomposition of organic substances in the microorganism adsorbed layer is reduced, or the microorganism adsorbed layer peels off from the surface of the filter medium. As a result, bad effects such as turbid water in the bathtub occurred,
According to the present invention, since the ultraviolet sterilizer is provided at the outlet of the microbial treatment device, various bacteria that propagate in the bath water are effectively sterilized or sterilized, and the overload phenomenon is suppressed.
【００２５】したがって、この発明では長時間運転して
も濾材表面の微生物吸着層が雑菌によって成長が阻害さ
れたり、剥離されたりすることがなく、このため浴槽水
中のＢＯＤ、ＣＯＤを安定して減少させることができ、
浴槽水を透明にすることができる。Therefore, in the present invention, growth of the microbial adsorption layer on the surface of the filter medium is not inhibited or peeled off by various bacteria even if it is operated for a long time, so that BOD and COD in the bath water are stably reduced. Can be
The bath water can be made transparent.
【００２６】なお、紫外線の水殺菌は他の殺菌法と異な
り、残留効果を持たない特性があり、濾材に発生した微
生物生息に影響を及ぼさないので、微生物処理装置内の
微生物が紫外線により死滅することもない。Unlike other sterilization methods, ultraviolet sterilization with water has the characteristic that it has no residual effect and does not affect the inhabitation of microorganisms generated in the filter medium, so that the microorganisms inside the microbial treatment apparatus are killed by ultraviolet rays. Nothing.
【００２７】[0027]
【実施例】以下、この発明の実施例を示す。図１は、こ
の発明の一実施例を示す浴槽水の微生物処理装置で、１
は浴槽、２は粒状のクリスバライト焼成品（商品名：ク
リスバール）とサンゴ砂、ゼオライトを配合してなる充
填層３を備えた微生物処理塔である。浴槽１と微生物処
理塔２の間には、循環通水路４を設けるとともに浴槽１
の出口1aと微生物処理塔２の入口2aの間の循環通水路４
には強制循環ポンプ５、フィルター６を介在させ、微生
物処理塔２の出口2bと浴槽１の入口1bの間の循環通水路
４には内部に紫外線ランプ７を挿入した紫外線殺菌塔
８、逆止弁９を介在させる。EXAMPLES Examples of the present invention will be shown below. FIG. 1 shows a bath water microbial treatment apparatus according to an embodiment of the present invention.
Is a bathtub, and 2 is a microbial treatment tower provided with a packed bed 3 formed by mixing granular Chris barite burned products (trade name: Krisvar), coral sand, and zeolite. A circulating water passage 4 is provided between the bathtub 1 and the microorganism treatment tower 2 and the bathtub 1
Circulation water passage 4 between the outlet 1a of the plant and the inlet 2a of the microbial treatment tower 2
A forced circulation pump 5 and a filter 6 are interposed between the two, and an ultraviolet sterilization tower 8 in which an ultraviolet lamp 7 is inserted inside the circulation water passage 4 between the outlet 2b of the microorganism treatment tower 2 and the inlet 1b of the bath 1 The valve 9 is interposed.
【００２８】処理すべき浴槽水は強制循環ポンプ５によ
り浴槽１の出口1aより排出され、フィルター６に送ら
れ、ここで固形分等が除去されて微生物処理塔２に送ら
れる。微生物処理塔２の充填層３を構成するクリスバー
ル粒子の表面には用廃水中に含まれるアンモニア、尿
素、有機物を分解する微生物膜が形成されており、微生
物処理塔２の底部に設けられた入口2aより挿入された浴
槽水は充填層３を通過する間に、これらクリスバール粒
子の表面に形成された微生物膜と接触することによりア
ンモニア、尿素、有機物等が分解処理される。The bath water to be treated is discharged from the outlet 1a of the bath 1 by the forced circulation pump 5 and sent to the filter 6, where solids and the like are removed and sent to the microorganism treatment tower 2. A microbial membrane that decomposes ammonia, urea, and organic substances contained in the waste water is formed on the surface of the Krisvar particles that form the packed bed 3 of the microbial treatment tower 2, and is provided at the bottom of the microbial treatment tower 2. While passing through the packed bed 3, the bath water inserted from the inlet 2a comes into contact with the microbial membrane formed on the surface of these Krisvar particles, whereby ammonia, urea, organic substances and the like are decomposed.
【００２９】微生物処理を受けた浴槽水は、塔２の上部
に設けられた出口2bより排出され、紫外線殺菌塔８に送
入される。浴槽水は底部より紫外線殺菌塔８内に送入さ
れ、紫外線ランプ７の間を上昇する間に紫外線の照射を
受け、生菌は殺菌処理される。その後、浴槽水は入口1b
より浴槽１内に戻され、更に再び前記同様に処理装置内
を循環通水するのである。The bath water subjected to the microbial treatment is discharged from the outlet 2b provided at the upper part of the tower 2 and fed into the ultraviolet sterilization tower 8. The bath water is fed into the ultraviolet sterilization tower 8 from the bottom, and is irradiated with ultraviolet rays while rising between the ultraviolet lamps 7, and the viable bacteria are sterilized. After that, the bath water is at the entrance 1b
Then, the water is returned to the inside of the bath 1 and then the water is circulated through the inside of the processing apparatus again as described above.
【００３０】このようにして浴槽水の微生物処理と殺菌
処理を行なうのであるが、この発明では紫外線による殺
菌処理を行なうため、微生物処理塔内で繁殖する微生物
には何等影響を与えることなく、浴槽水の雑菌等を殺菌
することができる。The microbial treatment and the sterilization treatment of the bath water are performed in this manner. In the present invention, since the sterilization treatment by ultraviolet rays is performed, the microorganisms propagated in the microbial treatment tower are not affected at all and the bath tub is not affected. It is possible to sterilize various bacteria in water.
【００３１】下記表６はこの実施例のように紫外線殺菌
塔を微生物処理塔の出口側に設けた場合の処理結果を示
すものであり、表７は、紫外線殺菌塔を入口側に設けた
場合の処理結果を示すものである。Table 6 below shows the treatment results when the ultraviolet sterilization tower was installed on the outlet side of the microbial treatment tower as in this example, and Table 7 shows the case where the ultraviolet sterilization tower was installed on the inlet side. The result of the process is shown.
【００３２】[0032]
【表６】 [Table 6]
【００３３】[0033]
【表７】 [Table 7]
【００３４】表６と表７を比較すれば明らかなように、
ＢＯＤ、ＣＯＤ、透明度、殺菌等の何れにおいても紫外
線処理塔を微生物処理塔の出口側に設けた場合において
優れた効果が得られている。As can be seen by comparing Table 6 and Table 7,
In any of BOD, COD, transparency, sterilization, and the like, excellent effects are obtained when the ultraviolet treatment tower is provided on the outlet side of the microorganism treatment tower.
【００３５】しかし、紫外線処理塔は微生物処理塔の入
口側に設けても、この発明で期待できる程度の効果があ
り、したがって紫外線処理塔は上記循環通水路何れの箇
所に設けてもよい。However, even if the ultraviolet treatment tower is provided on the inlet side of the microorganism treatment tower, it has the effect that can be expected in the present invention. Therefore, the ultraviolet treatment tower may be provided at any place of the above circulating water passage.
【００３６】[0036]
【発明の効果】以上要するに、この発明によれば浴槽水
を例えばクリスバール焼成品を濾材とする微生物処理装
置内を通過させた後、紫外線殺菌装置内を通過させるよ
うにして循環通水させるため、浴槽水中に含まれるアン
モニア、尿素、有機物等が微生物により分解処理される
と同時に、微生物処理装置内で混入する雑菌等は紫外線
処理により微生物処理装置内で繁殖する微生物に悪影響
を与えることなく、効果的に殺菌処理できる。In summary, according to the present invention, the bath water is circulated through the microbial treatment apparatus using the Krisvar fired product as the filter medium and then the ultraviolet sterilization apparatus. At the same time, ammonia, urea, organic matter, etc. contained in the bath water are decomposed by microorganisms, and miscellaneous bacteria mixed in the microorganism treatment device do not adversely affect the microorganisms propagated in the microorganism treatment device by ultraviolet treatment, Can be sterilized effectively.
【００３７】したがって、この発明によれば、従来の微
生物処理装置のように長期間運転した場合にＢＯＤ、Ｃ
ＯＤの停止し、透過度が減少するようなこともなく、Ｂ
ＯＤ、ＣＯＤを安定して減少させることができ、また浴
槽水の透明化を図ることができる。Therefore, according to the present invention, BOD, C and C
Without stopping OD and decreasing the transparency, B
The OD and COD can be stably reduced, and the bath water can be made transparent.
【図１】この発明に係る浴槽水の微生物処理装置の一例
を示す概略図である。FIG. 1 is a schematic view showing an example of a bath water microbial treatment apparatus according to the present invention.
１ 浴槽 ２ 微生物処理塔 ３ クリスバライト焼成品で構成された充填層 ４ 循環通水路 ８ 紫外線処理塔 1 Bath 2 Microbial treatment tower 3 Packed bed composed of fired Crisbalite 4 Circulating water passage 8 Ultraviolet treatment tower
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０２Ｆ 3/10 Ａ 9/00 Ａ 7446−4Ｄ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI Technical indication C02F 3/10 A 9/00 A 7446-4D
Claims (1)
珪藻土鉱物の焼成品を濾材とした微生物処理装置に処理
すべき浴槽水を循環通水するとともに、該循環通水路に
紫外線殺菌装置を設けるようにしたことを特徴とする浴
槽水の微生物処理装置。1. Bath water to be treated is circulated through a microbial treatment device using a fired product of a natural porous diatomaceous earth mineral containing silicate SiO 2 as a main component, and ultraviolet sterilization is carried out in the circulation passage. A microbial treatment device for bath water, characterized by being provided with a device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2411323A JPH0818038B2 (en) | 1990-12-18 | 1990-12-18 | Microbial treatment equipment for bath water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2411323A JPH0818038B2 (en) | 1990-12-18 | 1990-12-18 | Microbial treatment equipment for bath water |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2411322A Division JPH0818037B2 (en) | 1990-12-18 | 1990-12-18 | Wastewater microbial treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06154777A true JPH06154777A (en) | 1994-06-03 |
| JPH0818038B2 JPH0818038B2 (en) | 1996-02-28 |
Family
ID=18520341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2411323A Expired - Lifetime JPH0818038B2 (en) | 1990-12-18 | 1990-12-18 | Microbial treatment equipment for bath water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0818038B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006289305A (en) * | 2005-04-13 | 2006-10-26 | Yukio Kurabe | Method for improving water quality |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5472164A (en) * | 1977-11-19 | 1979-06-09 | Toyoda Sankyo Kk | Purifier for hot water in bathtub |
| JPS54145070A (en) * | 1978-05-04 | 1979-11-12 | Yaesu Rehabili Co Ltd | Hot and cold water purifier of medical bath |
| JPS60150893A (en) * | 1984-01-18 | 1985-08-08 | Sumitomo Metal Mining Co Ltd | Microorganism carrier |
| JPS6154285A (en) * | 1984-08-23 | 1986-03-18 | Sumitomo Metal Mining Co Ltd | Waterproofed microbe carrier for biological treatment and its manufacture |
-
1990
- 1990-12-18 JP JP2411323A patent/JPH0818038B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5472164A (en) * | 1977-11-19 | 1979-06-09 | Toyoda Sankyo Kk | Purifier for hot water in bathtub |
| JPS54145070A (en) * | 1978-05-04 | 1979-11-12 | Yaesu Rehabili Co Ltd | Hot and cold water purifier of medical bath |
| JPS60150893A (en) * | 1984-01-18 | 1985-08-08 | Sumitomo Metal Mining Co Ltd | Microorganism carrier |
| JPS6154285A (en) * | 1984-08-23 | 1986-03-18 | Sumitomo Metal Mining Co Ltd | Waterproofed microbe carrier for biological treatment and its manufacture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006289305A (en) * | 2005-04-13 | 2006-10-26 | Yukio Kurabe | Method for improving water quality |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0818038B2 (en) | 1996-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102633409A (en) | Technological method for controlling disinfection by-product and pathogenic microorganism risk of drinking water | |
| CN202543007U (en) | Process system for controlling risk of drinking water disinfection by-products and pathogenic microorganisms | |
| CN102666405A (en) | Water purification system and water purification method employing biological activated carbon and granular activated carbon | |
| JPH0818037B2 (en) | Wastewater microbial treatment equipment | |
| JP4092454B2 (en) | Water treatment method | |
| JPH04141296A (en) | Highly treated water supplying apparatus for multiple housing | |
| JP4129631B2 (en) | Membrane treatment system for virus isolation | |
| CN111439884A (en) | Municipal drainage treatment method | |
| JP4611963B2 (en) | Wastewater treatment equipment | |
| JPH05230858A (en) | Non-drain type water toilet | |
| JPH06154777A (en) | Treating device for microorganism in bathtub water | |
| JPH0286897A (en) | Special biological treatment equipment for service water and waste water | |
| JPH0286892A (en) | Special biological treatment equipment for service water and waste water | |
| JP2005131559A (en) | Re-purification treatment method of tap water and re-purification treatment equipment therefor | |
| JPH1133588A (en) | Method and apparatus for treating excretion of pig or other livestock | |
| JPH0751668A (en) | Purification treatment of sewage | |
| JPH02174987A (en) | Water cleaning device | |
| JPS5857965B2 (en) | Sterilizing and filtering agent for water treatment | |
| JPH01215395A (en) | Water treating device | |
| KR20170117836A (en) | A granulated microorganism composition for purification of wastewater purifier tank | |
| JPH03127679A (en) | City water treating device using biological activated carbon | |
| Kozyatnik et al. | The effect of water ozonation on the efficiency of extracting natural organic matter during filtration through biologically activated carbon | |
| JPH0338290A (en) | Biologically activated carbon water-treatment apparatus | |
| JP2004216316A (en) | Rainwater cleaning system | |
| JPH03232589A (en) | Waste water treating device |