JPH03232591A - Bioactive carbon treating device - Google Patents
Bioactive carbon treating deviceInfo
- Publication number
- JPH03232591A JPH03232591A JP2028254A JP2825490A JPH03232591A JP H03232591 A JPH03232591 A JP H03232591A JP 2028254 A JP2028254 A JP 2028254A JP 2825490 A JP2825490 A JP 2825490A JP H03232591 A JPH03232591 A JP H03232591A
- Authority
- JP
- Japan
- Prior art keywords
- water
- activated carbon
- sand filter
- biological activated
- metazoa
- 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.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 230000000975 bioactive effect Effects 0.000 title abstract 6
- 229910052799 carbon Inorganic materials 0.000 title abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000004576 sand Substances 0.000 claims abstract description 44
- 244000005700 microbiome Species 0.000 claims abstract description 9
- 238000011282 treatment Methods 0.000 claims description 45
- 238000011001 backwashing Methods 0.000 claims description 14
- 241001465754 Metazoa Species 0.000 abstract description 31
- 230000003449 preventive effect Effects 0.000 abstract 1
- 239000008223 sterile water Substances 0.000 description 7
- 239000005416 organic matter Substances 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 238000005660 chlorination reaction Methods 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 235000019645 odor Nutrition 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002503 metabolic effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000003206 sterilizing agent Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 241000244206 Nematoda Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 229910001902 chlorine oxide Inorganic materials 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000004045 organic chlorine compounds Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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
【発明の詳細な説明】
［発明の目的］
ｒＬＥ−ヒー σフ ネリＩｆ１４フプ町ｉ、ンこの発
明は、生物活性炭処理装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] The present invention relates to a biological activated carbon treatment device.
（従来の技術）
湖沼水や河川水などを原水とする浄水場では、前塩素処
理、凝集沈澱処理、急速ろ過処理、後塩素処理の順に浄
化処理を行うことが一般的である。(Prior Art) In water purification plants that use lake water, river water, or the like as raw water, it is common to perform purification treatment in the order of pre-chlorination treatment, coagulation sedimentation treatment, rapid filtration treatment, and post-chlorination treatment.
ところで近年になって、原水の水質汚濁の増加や人の健
康に係わる水質の検討により、従来の浄化処理水におけ
る問題点が提起されてくるようになっている。すなわち
、前塩素注入により発ガン性トリハロメタンなどの有機
塩素化合物が生成することや藻臭、かび臭がとれないこ
とが問題視されてくるようになった。However, in recent years, problems with conventional purified water have been raised due to increased pollution of raw water and consideration of water quality in relation to human health. That is, the generation of organic chlorine compounds such as carcinogenic trihalomethanes due to pre-chlorine injection and the inability to remove algal and musty odors have become problematic.
そこで、このような問題点に対処し、安全でおいしい水
をつくるために、各機場でパイロットテストが実施され
るようになっている。このような高度浄水処理方式の中
でも最も効果的な処理方式として、オゾン処理後に生物
活性炭処理をするものがある。Therefore, in order to address these problems and produce safe and delicious water, pilot tests are being conducted at various stations. Among these advanced water purification treatment methods, the most effective treatment method is one that performs biological activated carbon treatment after ozone treatment.
この処理方式は、前塩素処理無しに、従来の凝集沈澱処
理と急速ろ過処理とを組み合わせるものである。そして
生物活性炭処理では、活性炭に生育する微生物の代謝作
用を利用して有機物を継続的に除去することができる特
性がある。また、オゾン処理は、薬臭、かび臭の大部分
を効果的に除去することができる他に、生物難分離性の
有機物を部分酸化して生物分解性とするなど、後に続く
生物活性炭の微生物の代謝作用を効果的に行えるように
する働きをする。This treatment system combines conventional coagulation-sedimentation treatment and rapid filtration treatment without pre-chlorination treatment. Biological activated carbon treatment has the characteristic of being able to continuously remove organic matter by utilizing the metabolic effects of microorganisms that grow on activated carbon. In addition to being able to effectively remove most of the medicinal and musty odors, ozone treatment also partially oxidizes organic substances that are difficult to separate, making them biodegradable. It functions to enable effective metabolic action.
このような従来の生物活性炭処理装置の一例が第２図に
示されている。この第２図の従来例において、生物活性
炭処理装置１は底部に砂利、ガラス玉などを利用した支
持体２を配し、その上に粒径０．３ １．５ｍｍ程度の
粒状活性炭３を配している。そして、被処理水は開閉弁
４を通り、生物活性炭処理装置１内を下向流として流れ
、開閉弁５から浄化された処理水として流出する。An example of such a conventional biological activated carbon treatment apparatus is shown in FIG. In the conventional example shown in FIG. 2, the biological activated carbon treatment device 1 has a support 2 made of gravel, glass beads, etc. placed at the bottom, and granular activated carbon 3 with a particle size of about 0.3 to 1.5 mm is placed on top of the support 2. are doing. Then, the water to be treated passes through the on-off valve 4, flows in the biological activated carbon treatment device 1 as a downward flow, and flows out from the on-off valve 5 as purified treated water.
ここで粒状活性炭３には通水後数週間から数カ月でアン
モニア性窒素や有機物を代謝除去する微生物が生育し、
生物活性炭３としての機能を発揮するようになる。とこ
ろが、生物活性炭３に流入する被処理水中には浮遊縣濁
物が含まれているために、これに起因する生物活性炭３
の目詰まりが発生し、被処理水の継続的浄化の障害とな
っている。そこで、これを防ぐために、生物活性炭処理
装置１の底部に接続された開閉弁６を介して水と空気を
逆洗剤として吹き込むことや開閉弁７から排水させるこ
とを適宜組み合わせて、生物活性炭処理装置Ｉの逆洗を
数日から１週間に１度程度の頻度で実施するようにして
いる。この逆洗した逆洗剤は開閉弁８を介して排水され
る。Here, microorganisms that metabolize and remove ammonia nitrogen and organic matter grow on the granular activated carbon 3 several weeks to several months after water is passed through it.
It begins to function as biological activated carbon 3. However, since the water to be treated that flows into the biological activated carbon 3 contains suspended solids, the biological activated carbon 3
clogging occurs, which is an obstacle to continuous purification of the water to be treated. Therefore, in order to prevent this, the biological activated carbon treatment device 1 is equipped with an appropriate combination of blowing water and air as a reverse detergent through the on-off valve 6 connected to the bottom of the biological activated carbon treatment device 1, and draining water from the on-off valve 7. I try to backwash I at a frequency of about once every few days to once a week. This backwashed backwashing detergent is drained via the on-off valve 8.
このようにして従来の生物活性炭処理装置は運転され、
藁臭、かび臭成分を含む有機物の除去が長期にわたって
継続されるのである。In this way, the conventional biological activated carbon treatment equipment is operated,
The removal of organic matter containing straw and musty odor components continues over a long period of time.
（発明が解決しようとする課８）
しかしながら、このような従来の生物活性炭処理装置で
は、実際の運転により生物活性炭３の周囲に従属栄養細
菌と共に原生動物、線虫類、輪生類などの微小な後生動
物が成育し、生物活性炭層を流下し、さらに支持体部分
を自走して通過して処理水中に流出してくることがある
。これらの後生動物は最終浄化処理である後塩素処理な
どの消毒処理により死滅するが、その死骸が処理水中に
流出し、飲料水としての清澄度を損なう問題点があった
。(Issue 8 to be solved by the invention) However, in such a conventional biological activated carbon treatment device, during actual operation, microscopic organisms such as protozoa, nematodes, and whorls are formed around the biological activated carbon 3 along with heterotrophic bacteria. Metazoa may grow and flow down the biologically activated carbon layer, and may even run through the support part and flow into the treated water. These metazoans are killed by disinfection treatments such as post-chlorination treatment, which is the final purification treatment, but their carcasses leak into the treated water, which poses a problem that impairs the clarity of drinking water.
また有機物であるこれらの後生動物の死骸が飲料水中に
混入することは衛生上の観点からも避けなければならな
い問題点があった。In addition, there is a problem in that the carcasses of these metazoan, which are organic substances, should be avoided from mixing with drinking water from a hygienic point of view.
この発明はこのような従来の問題点に鑑みてなされたも
ので、従来の微小後生動物が処理水出口側から処理水中
に流出することのない生物活性炭処理装置を提供するこ
とを目的とする。The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a biological activated carbon treatment device in which conventional micrometazoans do not flow out into treated water from the treated water outlet side.
［発明の構成］
（課題を解決するための手段）
この発明は、粒状活性炭に微生物を生育させた生物活性
炭により水を浄化する生物活性炭処理装置において、生
物活性炭の下に砂ろ過体とこの砂ろ過体の中にノズル体
とを配置し、外部から供給される滅菌水を前記ノズル体
により前記砂ろ過体中に流出させるようにしたものであ
る。[Structure of the Invention] (Means for Solving the Problem) The present invention provides a biological activated carbon treatment device that purifies water using biological activated carbon in which microorganisms are grown on granular activated carbon. A nozzle body is disposed within the filter body, and sterilized water supplied from the outside is caused to flow into the sand filter body through the nozzle body.
またこの発明の生物活性炭処理装置は、逆洗機能を備え
たものにあっても適用することができ、その場合には、
ノズル体からの滅菌水の供給を停止してから逆洗を行う
ようにする。Furthermore, the biological activated carbon treatment device of the present invention can be applied even if it is equipped with a backwashing function, in which case,
Backwashing should be performed after stopping the supply of sterile water from the nozzle body.
（作用）
この発明の生物活性炭処理装置では、底部に配した支持
体の上に設けた砂ろ過体に挿入されたノズル体から滅菌
水を流出させ、滅菌水の充満した砂ろ過体により、生物
活性炭側がらの後生動物の流下防止帯域を形成し、この
砂ろ過体より下側には後生動物が流下しないようにする
。また、万一、後生動物が砂ろ過体まで流入してきたと
してもこの砂ろ過体において滅菌水の作用により死滅し
、もしくは弱まり、砂ろ過体に捕捉されることになり、
砂ろ過体より流出する処理水に後生動物が存在すること
を防止することができる。(Function) In the biological activated carbon treatment device of the present invention, sterile water flows out from the nozzle body inserted into the sand filter provided on the support disposed at the bottom, and the sand filter filled with sterile water allows the biological activated carbon treatment device to A zone to prevent metazoa from flowing down is formed on the activated carbon side to prevent metazoa from flowing down below the sand filter. In addition, even if metazoans were to flow into the sand filter, they would be killed or weakened by the action of sterilized water in the sand filter, and would be trapped in the sand filter.
The presence of metazoa in the treated water flowing out of the sand filter can be prevented.
（実施例） 以下、この発明の実施例を図に基づいて詳説する。(Example) Hereinafter, embodiments of the present invention will be explained in detail based on the drawings.
第１図はこの発明の一実施例を示しており、第２図に示
した従来例と同一の構成要素については同−の符号を付
けて示しである。FIG. 1 shows an embodiment of the present invention, and the same components as those of the conventional example shown in FIG. 2 are denoted by the same reference numerals.
この実施例の特徴は、生物活性炭処理装置９の底部の支
持体２の上部に砂ろ過体１０を配し、この砂ろ過体１０
の中の上部に、滅菌水を流出させるためのノズル体１１
を設け、この砂ろ過体１０の上方に生物活性炭３を配し
た構成である。The feature of this embodiment is that a sand filter body 10 is disposed on the upper part of the support body 2 at the bottom of the biological activated carbon treatment device 9.
A nozzle body 11 for discharging sterile water is provided at the upper part of the interior.
is provided, and biological activated carbon 3 is arranged above this sand filter body 10.
砂ろ過体１０には、従来一般に用いられている急速ろ過
装置のろ過砂相当のものが使用される。As the sand filter body 10, a material equivalent to the filter sand of a rapid filtration device commonly used in the past is used.
また滅菌水には、滅菌作用のある薬剤を水に溶かし込ん
だものが用いられ、−船釣には塩素や二酸化塩素が利用
される。In addition, sterilized water is made by dissolving sterilizing agents into water, and for boat fishing, chlorine or chlorine dioxide is used.
ノズル体１１は滅菌水を被処理水の下向流の流れに沿っ
て流下させる構造のものであればよく、比較的簡単な構
造のものとしては、下側や水平方向に細いノズル穴が開
けられている複数のパイプ材を水平にして互いに間隔を
おいて配列した形に連結し、開閉弁１２に接続する構成
とすることができる。The nozzle body 11 may have any structure as long as it allows sterilized water to flow down along the downward flow of the water to be treated, and a relatively simple structure may include a thin nozzle hole provided at the bottom or in the horizontal direction. A plurality of pipe materials may be connected horizontally and arranged at intervals, and connected to the on-off valve 12.
次に、上記の構成の生物活性炭処理装置の動作について
説明する。Next, the operation of the biological activated carbon treatment apparatus having the above configuration will be explained.
従来例と同様にして、原水の被処理水は開閉弁４を通っ
て生物活性炭処理装置９の上部から生物活性炭３に注入
されてここを流下し、この間に生物活性炭３に付着して
いる微生物により含有有機物が除去され、砂ろ過体１０
の部分を流下した後、支持体２を通過して開閉弁５から
処理水として取り出されていく。In the same manner as in the conventional example, raw water to be treated passes through the on-off valve 4 and is injected into the biological activated carbon 3 from the upper part of the biological activated carbon treatment device 9 and flows down there, and during this time, the microorganisms attached to the biological activated carbon 3 are removed. The organic matter contained is removed by the sand filter 10.
After flowing down, the water passes through the support 2 and is taken out from the on-off valve 5 as treated water.
この生物活性炭処理の際、ノズル体１１には滅菌水が開
閉弁１２を介して供給され、ノズル体１１の細いノズル
穴から砂ろ過体１０の部分に少しずつ流出される。この
滅菌水の流出度合いは、塩素を滅菌剤とした場合には遊
離残留塩素が０．０５−敗ｍ ｇ ／ １）になるよう
にするのが望ましい。During this biological activated carbon treatment, sterilized water is supplied to the nozzle body 11 via the on-off valve 12, and is gradually flowed out from the narrow nozzle hole of the nozzle body 11 to the sand filter body 10. When chlorine is used as a sterilizing agent, the degree of outflow of the sterilized water is preferably such that the free residual chlorine is 0.05 mg/1).
このようしてノズル体１１から砂ろ過体１０の部分に滅
菌水が流出されると、生物活性炭３の部分に発生した後
生動物が自走してここを離れ、砂ろ過体１０側に移動し
ようとしても、そこには後生動物の嫌う滅菌水が充満し
ている流入防止帯域が存在するために砂ろ過体１０の部
分を自走して通過することはなく、処理水と共に後生動
物が流出することを防止することができる。また、たと
え後生動物が砂ろ過体１０の部分に移動してきたとして
も、ここで滅菌水の存在により死滅してしまい、その死
骸は砂ろ過体１０によりろ過され、処理水と共に後生動
物の死骸が流出することもない。When the sterilized water is discharged from the nozzle body 11 to the sand filter 10 in this way, the metazoans that have formed on the biological activated carbon 3 will move away from here and move toward the sand filter 10. However, because there is an inflow prevention zone filled with sterilized water that metazoans dislike, the water does not pass through the sand filter 10 on its own, and the metazoans flow out together with the treated water. This can be prevented. Furthermore, even if the metazoan migrates to the sand filter 10, it will die due to the presence of sterilized water, and its carcass will be filtered through the sand filter 10, and the metazoan carcass will be removed together with the treated water. There is no leakage.
したがって、処理水は生きた後生動物も死骸となった後
生動物も混入しない清澄なものが得られることになる。Therefore, the treated water is clear and free from contamination by living metazoans and dead metazoans.
ここで、砂ろ過体１０の上部に注入する滅菌水の供給度
合いを上記のように小さいもので済ませることができる
のは、砂ろ過体１０の上部には装置の大きさから見れば
小さいが、後生動物から見れば大きい濃度拡散による濃
度分布が形成され、後生動物の側て砂ろ過体１０の部分
に形成される流入防止帯域への接近距離を調節するよう
になるからである。またこのように滅菌水の供給度合い
を小さいものとすることにより、生物活性炭３側への滅
菌水の拡散による逆流を防ぐことができ、被処理水から
の有機物を浄化する微生物を死滅させたり弱らせたりす
るという悪影響を与えることを未然に防止することがで
きる。Here, the reason why the supply level of sterilized water injected into the upper part of the sand filter 10 can be as small as described above is because the upper part of the sand filter 10 is small considering the size of the device. This is because, from the perspective of the metazoan, a concentration distribution due to large concentration diffusion is formed, and the approach distance to the inflow prevention zone formed in the sand filter 10 on the side of the metazoan is adjusted. In addition, by reducing the degree of sterilized water supply in this way, it is possible to prevent backflow due to diffusion of sterilized water to the biological activated carbon 3 side, thereby killing or weakening the microorganisms that purify organic matter from the water to be treated. It is possible to prevent the adverse effects of causing the problem.
そこで、砂ろ過体１０の充填深さは、生物活性炭処理装
置９の構造、運転条件などにより異なるものであり実験
的に設定するのが望ましいが、滅菌水のノズル体１１の
直下における横断面上の分布むらを、１０−５０ ｍ
ｍの深さ方向の流下により均一化させることにより後生
動物の流入防止帯域を形成させることが可能であり、ま
た５０−１００ｍｍの深さがあれば数少ない流入後生動
物を十分確実に捕捉することができる。Therefore, the filling depth of the sand filter 10 varies depending on the structure and operating conditions of the biological activated carbon treatment device 9, and is preferably set experimentally. The distribution unevenness of 10-50 m
It is possible to form a metazoan inflow prevention zone by uniformizing the flow down in the depth direction of m, and a depth of 50 to 100 mm makes it possible to sufficiently reliably capture the few inflowing metazoans. can.
したがって、従来ては支持体２の深さを１５０ｍｍ程度
にしているのが一般的であり、この実施例の砂ろ過体１
０は従来の支持体２と同様の機能を併せ持っているので
、この発明の実施例での支持体２は５０−１００ ｍ
ｍ程度の深さとし、残りを砂ろ過体１０て賄うように砂
ろ過体１０の深さを設定すればよい。Therefore, conventionally, the depth of the support body 2 is generally about 150 mm, and the sand filter body 1 of this embodiment
0 has the same function as the conventional support 2, so the support 2 in the embodiment of this invention has a length of 50-100 m.
The depth of the sand filter 10 may be set so that the depth is about m, and the sand filter 10 covers the rest.
さらにこの実施例の生物活性炭処理装置９は逆洗機能を
備えており、定期的に逆洗を行うことになるが、この逆
洗の条件は従来例と異なったものとなる。つまり、砂ろ
過体１０に存在する滅菌水が逆洗時に生物活性炭３の側
に流入することがあっては微生物の死滅や弱まりを引き
起こす可能性があるので、それを防止する配慮が必要と
なる。Furthermore, the biological activated carbon treatment device 9 of this embodiment has a backwashing function, and backwashing is performed periodically, but the conditions for this backwashing are different from those of the conventional example. In other words, if the sterile water present in the sand filter 10 flows into the biological activated carbon 3 during backwashing, it may kill or weaken the microorganisms, so consideration must be taken to prevent this. .
そこで、逆洗の開始に先立って開閉弁１２を閉じ、滅菌
水の導入を停止し、滅菌水を開閉弁５を介して処理水出
口側に、あるいは開閉弁７を介して排水側に完全に流出
させ、その後に逆洗を開始するようにしなければならな
い。これは、開閉弁１２を閉じてからタイマなどを利用
して遅れ時間を設定し、一定時間が経過してから逆洗が
開始されるようにすることにより実現することができる
。Therefore, before starting backwashing, the on-off valve 12 is closed, the introduction of sterile water is stopped, and the sterile water is completely transferred to the treated water outlet side via the on-off valve 5 or to the drainage side via the on-off valve 7. It must be allowed to drain and then backwashing can begin. This can be achieved by setting a delay time using a timer or the like after closing the on-off valve 12 so that backwashing is started after a certain period of time has elapsed.
逆洗により砂ろ過体１０て捕捉された後生動物などは生
物活性炭３の目詰まり物質と共に開閉弁８から装置の外
部に逆洗水と共に排出される。そして逆洗完了後は、被
処理水の生物活性炭処理装置９への導入に合わせて、滅
菌水の導入を再開する。Metazoa and the like captured in the sand filter 10 by backwashing are discharged together with the substances clogging the biological activated carbon 3 to the outside of the device through the on-off valve 8 together with the backwash water. After the backwashing is completed, the introduction of sterilized water is resumed at the same time as the water to be treated is introduced into the biological activated carbon treatment device 9.
なお、上記の実施例では滅菌水を連続的に砂ろ過体１０
に流入させるようにしているが、後生動物の処理水側へ
の流出の状況に応じて間欠的に継続流入させるようにし
てもかまわない。In addition, in the above embodiment, sterilized water is continuously passed through the sand filter 10.
However, depending on the situation of metazoa flowing into the treated water side, the inflow may continue intermittently.
［発明の効果］
以上のようにこの発明によれば、生物活性炭の下方に砂
ろ過体を設け、この砂ろ週体内に配したノズル体から滅
菌水を砂ろ過体に流入させ、後生動物の嫌う流入防止帯
域を形成しているため、生物活性炭に発生した微小な後
生動物が生物活性炭部分を下方に自走してきて支持体部
分を越え、処理水と共に流出することが防止でき、また
滅菌水に触れることにより死滅したり弱まったりした後
生動物は砂ろ過体により捕捉することができて死骸が砂
ろ過体を流下して処理水と共に流出することも防止でき
、後生動物やその死骸の混入しない清澄な水を得ること
ができる。[Effects of the Invention] As described above, according to the present invention, a sand filter is provided below the biological activated carbon, and sterilized water is allowed to flow into the sand filter from the nozzle body disposed inside the sand filter, thereby removing metazoan. Because it forms a zone to prevent inflow, it is possible to prevent microscopic metazoans generated on the biological activated carbon from moving downward through the biological activated carbon part, over the support part, and flowing out together with the treated water. Metazoa that die or become weakened due to contact with water can be captured by the sand filter, and the dead bodies can be prevented from flowing down the sand filter and flowing out with the treated water, preventing contamination with metazoa and their carcasses. You can get clear water.
さらに、この発明の生物活性炭処理装置からの処理水に
はすてに滅菌水が混入されているために、最終処理であ
る消毒処理装置までの配管系統での微生物や後生動物の
発生を抑えることができ、消毒処理装置でのろ過が不要
になって装置の簡略化が可能となり、同時に消毒剤の倹
約もできるようになり、経済性の向上が図れる。Furthermore, since the treated water from the biological activated carbon treatment device of this invention is already mixed with sterilized water, it is difficult to suppress the generation of microorganisms and metazoa in the piping system leading to the final treatment, which is the disinfection treatment device. This eliminates the need for filtration in the disinfection processing equipment, making it possible to simplify the equipment and at the same time save on disinfectant, improving economic efficiency.
第１図はこの発明の一実施例の断面図、第２図は従来例
の断面図である。
２・・・支持体 ３・・・生物活性炭４・・
・開閉弁 ５・・・開閉弁６・・・開閉弁
７・・・開閉弁８・・・開閉弁
９・・・生物活性炭処理装置
１０・・・砂ろ過体 １１・・・ノズル体１２・
・・開閉弁
代雇人弁理士三好秀和FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional example. 2...Support 3...Biological activated carbon 4...
・On-off valve 5... On-off valve 6... On-off valve
7... On-off valve 8... On-off valve 9... Biological activated carbon treatment device 10... Sand filter body 11... Nozzle body 12.
・Hidekazu Miyoshi, patent attorney and patent attorney
Claims (2)
り水を浄化する生物活性炭処理装置において、 生物活性炭の下に砂ろ過体とこの砂ろ過体の中にノズル
体とを配置し、 外部から供給される滅菌水を前記ノズル体により前記砂
ろ過体中に流出させるようにして成ることを特徴とする
生物活性炭処理装置。(1) In a biological activated carbon treatment device that purifies water using biological activated carbon in which microorganisms are grown on granular activated carbon, a sand filter is placed under the biological activated carbon and a nozzle body is placed inside the sand filter, and water is supplied from the outside. A biological activated carbon treatment device, characterized in that the sterilized water is caused to flow out into the sand filter body through the nozzle body.
物活性炭部分を上昇して装置の上部から逆洪水を排出す
るようにした逆洗機能を備え、逆洗時に前記ノズル体か
らの滅菌水の供給を停止して逆洗を行うようにして成る
請求項１に記載の生物活性炭処理装置。(2) Equipped with a backwash function that supplies backflow from the bottom of the device, raises the sand filter body and biological activated carbon portion, and discharges the backflow from the top of the device, and during backwashing, the backflow from the nozzle body The biological activated carbon treatment device according to claim 1, wherein backwashing is performed by stopping the supply of sterilized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2028254A JPH03232591A (en) | 1990-02-09 | 1990-02-09 | Bioactive carbon treating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2028254A JPH03232591A (en) | 1990-02-09 | 1990-02-09 | Bioactive carbon treating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03232591A true JPH03232591A (en) | 1991-10-16 |
Family
ID=12243436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2028254A Pending JPH03232591A (en) | 1990-02-09 | 1990-02-09 | Bioactive carbon treating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03232591A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002159984A (en) * | 2000-11-27 | 2002-06-04 | Kurita Water Ind Ltd | Biodegradation method for toc component |
| WO2012079193A1 (en) * | 2010-12-13 | 2012-06-21 | Wu Qiongli | Water purification device |
-
1990
- 1990-02-09 JP JP2028254A patent/JPH03232591A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002159984A (en) * | 2000-11-27 | 2002-06-04 | Kurita Water Ind Ltd | Biodegradation method for toc component |
| WO2012079193A1 (en) * | 2010-12-13 | 2012-06-21 | Wu Qiongli | Water purification device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7258798B2 (en) | Potable water treatment plant and method of maintaining same | |
| KR101551856B1 (en) | Recirculating rearing system | |
| JPH11290848A (en) | Method and apparatus for filtration | |
| US20040129619A1 (en) | Aquaculture system | |
| JPH10263566A (en) | Water treating device | |
| JP2002210488A (en) | Purification apparatus | |
| JPH03232591A (en) | Bioactive carbon treating device | |
| JPH04126528A (en) | Method for cleaning hollow-fiber membrane filter device the same | |
| ES2738563T3 (en) | Backwash procedure for biological reactors | |
| JPH07236883A (en) | Water treatment apparatus | |
| KR101300655B1 (en) | Apparatus for purifying and sterilization saline water or washing water | |
| JPH1157708A (en) | Treatment of soil and organic matter-containing water | |
| JPH06238289A (en) | Purification device of bioactivated charcoal filter device | |
| JPH091171A (en) | Waster water circulating purification device | |
| JPH0440796Y2 (en) | ||
| JPH04104748A (en) | Device for cleaning fish-culturing water | |
| JP3605995B2 (en) | Biological activated carbon filtration equipment | |
| JPH05123699A (en) | Circulation filter | |
| JP3327412B2 (en) | Water treatment equipment | |
| JPH09155386A (en) | Circulating device | |
| JPH01215395A (en) | Water treating device | |
| JPH0347502Y2 (en) | ||
| JPH1119655A (en) | Method for sterilizing bath water | |
| JPH07155751A (en) | Water treating device | |
| KR101185369B1 (en) | A filter frame what to do equipped a waste water disposal plant |