JPH0621598Y2 - Microbial filter bed wastewater treatment equipment - Google Patents
Microbial filter bed wastewater treatment equipmentInfo
- Publication number
- JPH0621598Y2 JPH0621598Y2 JP1989119344U JP11934489U JPH0621598Y2 JP H0621598 Y2 JPH0621598 Y2 JP H0621598Y2 JP 1989119344 U JP1989119344 U JP 1989119344U JP 11934489 U JP11934489 U JP 11934489U JP H0621598 Y2 JPH0621598 Y2 JP H0621598Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- filter bed
- microbial
- microbial filter
- treatment
- 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.)
- Expired - Lifetime
Links
- 230000000813 microbial effect Effects 0.000 title claims description 60
- 238000004065 wastewater treatment Methods 0.000 title claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 137
- 238000011282 treatment Methods 0.000 claims description 36
- 244000005700 microbiome Species 0.000 claims description 23
- 239000002351 wastewater Substances 0.000 claims description 12
- 230000035699 permeability Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 230000002503 metabolic effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims 1
- 238000004381 surface treatment Methods 0.000 claims 1
- 230000002123 temporal effect Effects 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000010840 domestic wastewater Substances 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008400 supply water Substances 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
Landscapes
- Biological Treatment Of Waste Water (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、微生物濾床型廃水処理装置に係り、より詳細
には、例えば、産業廃水、生活廃水等の各種廃水を、一
次、二次処理した処理水を、更に、高度処理し、該業廃
水の循環再利用を始め、生活廃水の再利用として中水道
への利用できるようにした微生物濾床型廃水処理装置に
関する。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a microbial filter-bed wastewater treatment device, and more particularly, to various types of wastewater such as industrial wastewater and domestic wastewater The present invention relates to a microbial filter bed wastewater treatment device which is capable of further advanced treatment of the treated water and starting recycling and recycling of the industrial wastewater so that it can be reused in domestic water as reuse of domestic wastewater.
従来、廃水の処理方法としては、微生物の有機物分解能
力を利用した生物学的処理と、薬剤等を利用した物理化
学的処理とがあるが、省エネルギー、経済上等の観点よ
り生物学的処理が多く採用されている。Conventionally, wastewater treatment methods include biological treatment utilizing the ability of microorganisms to decompose organic substances and physicochemical treatment utilizing chemicals, etc. It is widely adopted.
そして、生物学的処理による廃水処理システムにも、多
くの方法があり、種々のシステムが提案されている。そ
して、その中でも、微生物として土壌微生物を利用する
と共に、該土壌微生物が活性状態を保持する条件を人工
的に再現し、該個所において廃水を微生物と接触させる
ことで、浄水するようにしたシステムが採用されてい
る。この場合、廃水は、微生物の消化効率の良いＢＯＤ
値濃度の条件下である必要がある。Also, there are many methods for wastewater treatment systems by biological treatment, and various systems have been proposed. And, among them, while utilizing the soil microorganisms as microorganisms, artificially reproduce the conditions in which the soil microorganisms retain the active state, by contacting the wastewater with the microorganisms at the location, a system for water purification Has been adopted. In this case, the wastewater is a BOD with good digestion efficiency of microorganisms.
It must be under the condition of value concentration.
従って、このような生物学的処理による廃水処理システ
ムは、廃水中の有機物含有濃度が高い場合に適するもの
の、該濃度がある程度低下、例えば、ＢＯＤ濃度が２０
ｐｐｍ程度の場合、微生物による分解処理が行われ得な
い。Therefore, such a wastewater treatment system by biological treatment is suitable when the concentration of organic substances in the wastewater is high, but the concentration decreases to some extent, for example, the BOD concentration is 20%.
In the case of about ppm, decomposition treatment by microorganisms cannot be performed.
そこで、廃水を、一次、二次処理等し、その水質を、Ｂ
ＯＤ２０〜３０PPM前後とした処理水（廃水）の浄化処
理としては、濾過、吸着等の高エネルギーを必要とする
物理的処理が採用されている。Therefore, the wastewater is subjected to primary and secondary treatments, and the water quality is
As a purification treatment of treated water (waste water) having an OD of about 20 to 30 PPM, a physical treatment requiring high energy such as filtration and adsorption is adopted.
しかし、該物理的処理の場合、システムが大掛かりとな
ると共に、多くの外部エネルギーが必要となる等の問題
がある。However, in the case of the physical treatment, there are problems that the system becomes large-scale and a large amount of external energy is required.
本考案は、上述した点に対処して創案したものであっ
て、その目的とする処は、ＢＯＤ濃度が２０〜４０PPM
以下の廃水を、小規模な設備でもって、しかも外部エネ
ルギーを極力少なくした条件下で、より一層浄水できる
ようにした微生物濾床型廃水処理装置を提供することに
ある。The present invention was devised in response to the above-mentioned points, and the purpose thereof is to obtain a BOD concentration of 20 to 40 PPM.
It is an object of the present invention to provide a microbial filter-type wastewater treatment device capable of further purifying the following wastewater with a small-scale facility and under conditions where external energy is minimized.
そして、上記目的を達成するための手段とての本考案の
微生物濾床型廃水処理装置は、水質がＢＯＤ２０〜４０
PPM以下の廃水を処理するための微生物濾床型廃水処理
装置であって、該処理水を送水するための送水部と、該
送水部よりの処理水を微生物処理するための微生物処理
部と、該微生物処理部で浄水された水を集水するための
集水部とを有し、該微生物処理部を、水に対する表面張
力が、微少〜０．０７ｇ／cm2（２０℃）程度の性質を
有するものを主体とした骨材によって形成した微細骨材
充填層に好気性微生物を主体とした微生物濾床を形成さ
せた処理部とし、また、送水部は、該処理部における微
生物濾床への給水量が、不飽和状態を保つ範囲内で間歇
的に給水するように形成し、また上記微細骨材充填層内
に処理水を給水するためのトレンチを上下部位に配置
し、下部給水管の給水能力を越えた場合に、上部給水ト
レンチに給水を行ない、処理水量の時間的変動に対応さ
せると共に、上記微細骨材充填層における微生物濾床へ
均一散水できるようにし、更に微細骨材充填層の上下層
で、異なる通気状態とし、該上層部の通気性を下層部の
通気性より良好な層とし、微生物の代謝エネルギーによ
る発熱によって上部外気の温度変化とは異なった恒温状
態を保つことようにし、かつ上記微細骨材充填層の微生
物濾床で浄水された水を集水するための集水部を形成す
る集水管を、上部給水トレンチの上部位と、下部トレン
チの下部とにそれぞれ設け、上記微生物濾床への給水量
に応じて、この上部と下部の集水管より集水することが
できるようにした構成よりなる。The microbial filter-type wastewater treatment device of the present invention as a means for achieving the above object has a water quality of BOD 20-40.
A microbial filter bed wastewater treatment device for treating wastewater of PPM or less, a water supply section for supplying the treated water, and a microbial treatment section for microbially treating the treated water from the water supply section, A water collecting part for collecting the water purified by the microbial treatment part, wherein the microbial treatment part has a surface tension with respect to water of from about 0.07 g / cm 2 (20 ° C.) As a treatment section in which a microbial filter bed mainly composed of aerobic microorganisms is formed in a fine aggregate packed bed formed of an aggregate mainly having the above, and a water feeding section is a microbial filter bed in the treatment section. The water supply amount of the above is formed so as to intermittently supply water within a range where an unsaturated state is maintained, and trenches for supplying treated water in the fine aggregate filling layer are arranged at upper and lower parts, and a lower water supply pipe is provided. If the water supply capacity of the above is exceeded, water is supplied to the upper water supply trench. In addition to responding to the time variation of the amount of treated water, it is possible to uniformly sprinkle the microbial filter bed in the fine aggregate packed bed, and further different ventilation states in the upper and lower layers of the fine aggregate packed layer, the air permeability of the upper layer portion. Is a layer having better air permeability than the lower layer, and is kept at a constant temperature state different from the temperature change of the upper outside air by heat generated by metabolic energy of microorganisms, and is purified by the microbial filter bed of the fine aggregate-filled layer. Water collecting pipes that form a water collecting portion for collecting the collected water are provided at the upper part of the upper water supply trench and at the lower part of the lower trench, respectively, and depending on the amount of water supplied to the microbial filter bed, this upper part and The structure is such that water can be collected from the lower water collecting pipe.
そして、上記構成に基づく、本考案の微生物濾床型廃水
処理装置は、微生物濾床として、水に対する表面張力
が、微少〜０．０７ｇ／cm2（２０℃）程度の性質を有
するものを主体とした骨材よりなる微細骨材充填層で形
成し、処理水の吸水分散を、上記骨材表面または隣接骨
材隙間を通じての毛細管誘導現象でもって行わせるよう
にしているので、処理水が、万遍なく、濾床と接触し、
微生物による消化が行われるように作用する。The microbial filter bed wastewater treatment device of the present invention based on the above-mentioned configuration is mainly a microbial filter bed having a surface tension with respect to water of about 0.07 g / cm 2 (20 ° C.). Since it is formed by a fine aggregate packed layer made of aggregate, the treated water is absorbed and dispersed by a capillary induction phenomenon through the aggregate surface or the adjacent aggregate gap, so that the treated water is Touch the filter bed evenly,
It acts as if digested by microorganisms.
また、本考案の微生物濾床型廃水処理装置は、微生物濾
床への処理水の給水が、間歇給水とされると共に、該微
生物濾床における水が、不飽和状態を維持されるように
して給水されるので、該給水に外部エネルギーが、少な
くて済むように作用する。Further, the microbial filter bed wastewater treatment apparatus of the present invention is configured such that the supply of treated water to the microbial filter bed is intermittent water supply and the water in the microbial filter bed is maintained in an unsaturated state. Since water is supplied, external energy acts on the water supply so as to be small.
以下、図面を参照しながら、本考案を具体化した実施例
について説明する。Embodiments embodying the present invention will be described below with reference to the drawings.
ここに、第１〜４図は、本考案の一実施例を示し、第１
図は平面図、第２図は側面図、第３図は給水部分のトレ
ンチの構造を説明するための拡大説明図、第４図は集水
部の構造を説明するための拡大説明図である。1 to 4 show an embodiment of the present invention.
The drawing is a plan view, FIG. 2 is a side view, FIG. 3 is an enlarged explanatory view for explaining the structure of the trench of the water supply portion, and FIG. 4 is an enlarged explanatory view for explaining the structure of the water collecting portion. .
本実施例の微生物濾床型廃水処理装置は、廃水の三次処
理装置であって、該略すると、送水部１と微生物処理部
２および集水部３とより構成されている。The microbial filter bed wastewater treatment apparatus of this embodiment is a wastewater tertiary treatment apparatus, and is composed of a water supply section 1, a microbial treatment section 2 and a water collection section 3 in abbreviated form.
送水部１は、二次処理槽４で処理された二次処理水を微
生物処理部２に送水するための部であって、送水ポンプ
５と送水管６によって構成されている。送水ポンプ５
は、二次処理槽４における二次処理水を汲み上げ、送水
管６を通じて、微生物処理部２に送水できるように配置
されている。The water feed unit 1 is a unit for feeding the secondary treated water treated in the secondary treatment tank 4 to the microbial treatment unit 2, and includes a water feed pump 5 and a water feed pipe 6. Water pump 5
Is arranged so that the secondary treated water in the secondary treatment tank 4 can be pumped up and can be fed to the microorganism treatment section 2 through the water feed pipe 6.
微生物処理部２は、内部に微生物濾床７が形成された処
理室によって構成され、微生物濾床７の上下部位には上
部トレンチ８と下部トレンチ９とが配設されている。微
生物濾床７は、２０〜３０cm以下の粒径の微細骨材８に
よって形成されている微細骨材充填層に好気性微生物を
主体とする微生物を生息させて形成されている。ここ
で、該微細骨材充填層を形成する微細骨材８は、水に対
する表面張力が、微少〜０．０７ｇ／cm2（２０℃）程
度の性質を有するものを主体とした骨材を用いている。
また微細骨材充填層の上層部と下層部との通気性に変化
を与えるために、該上層部を下層部より、良好な通気性
を有するように、粒径の若干大きいものを用いたり、異
種類の骨材を用いた構成としている。上部トレンチ９と
下部トレンチ１０とは、第３図に示すように、それぞ
れ、トレンチ内部に送水部１の送水管６に接続されてい
る散水管１１が配置され、その周囲に微生物コーティン
グされた２０〜３０cmの粒径の骨材１２が充填された構
成となっている。ここで、上部トレンチ９と下部トレン
チ１０とは、交互に位置するように配置されるように送
水管６に接続され、また、送水管６の端部に接続されて
いる散水管１１は、周囲に、複数個の小孔（あるいは、
スリット）が穿設されている有孔管が用いられ、充填骨
材１２を介して、微生物濾床７に散水できるように構成
されている。また、充填骨材１２の上部には微生物濾床
７を形成する微細骨材８が充填骨材１２内に混入しない
ようにネット１３が被せてある。一方、トレンチ９、１
０の内下部には、止水膜１４が敷設されている。ここ
で、止水膜１４は、ゴム膜、ＦＲＰ材、コンクリート等
で形成されたものを用いている。また、上部トレンチ９
の上方部位、下部トレンチ１０の下方部位には、それぞ
れ、第４図に示すように、微生物濾床７の内部に集水管
１５が配設されている。集水管１５は、周囲に複数個の
孔が穿設されていて、毛細管現象によって集水できるよ
うに構成されている。The microbial treatment section 2 is composed of a treatment chamber in which a microbial filter bed 7 is formed, and an upper trench 8 and a lower trench 9 are provided at upper and lower portions of the microbial filter bed 7. The microbial filter bed 7 is formed by allowing microbes mainly composed of aerobic microbes to live in a micro aggregate filling layer formed of the micro aggregate 8 having a particle size of 20 to 30 cm or less. Here, as the fine aggregate 8 forming the fine aggregate filling layer, an aggregate mainly having a surface tension with respect to water of about 0.07 g / cm 2 (20 ° C.) is used. ing.
In order to change the air permeability between the upper layer portion and the lower layer portion of the fine aggregate filling layer, the upper layer portion may have a slightly larger particle diameter than the lower layer portion so that the upper layer portion has better air permeability, The structure uses different kinds of aggregates. As shown in FIG. 3, the upper trench 9 and the lower trench 10 each have a sprinkling pipe 11 connected to the water feeding pipe 6 of the water feeding unit 1 inside the trench and coated with microorganisms around the sprinkling pipe 11. It is configured to be filled with aggregate 12 having a particle size of ˜30 cm. Here, the upper trench 9 and the lower trench 10 are connected to the water supply pipe 6 so as to be arranged alternately, and the water spray pipe 11 connected to the end of the water supply pipe 6 is surrounded by A plurality of small holes (or
A perforated pipe having a slit) is used, and it is configured so that water can be sprayed on the microbial filter bed 7 through the filled aggregate 12. A net 13 is placed on the top of the filled aggregate 12 so that the fine aggregate 8 forming the microbial filter bed 7 is not mixed into the filled aggregate 12. On the other hand, trenches 9, 1
A water blocking film 14 is laid on the inner bottom portion of 0. Here, the water blocking film 14 is made of a rubber film, an FRP material, concrete or the like. Also, the upper trench 9
As shown in FIG. 4, a water collecting pipe 15 is provided inside the microorganism filter bed 7 at the upper part of the above and the lower part of the lower trench 10, respectively. The water collecting pipe 15 has a plurality of holes formed in the periphery thereof and is configured to collect water by a capillary phenomenon.
集水部３は、微生物処理部２で微生物処理された処理水
を集水・排水するための部であって、集水枡１６と、排
水ポンプ１７とによって構成され、微生物濾床７内に配
設されている集水管１５で集水された処理水を集水枡１
６に蓄え、集水枡１６の貯水を排出ポンプ１７により中
水道として送水できるように構成されている。The water collecting unit 3 is a unit for collecting and draining the treated water that has been subjected to the microbial treatment by the microbial treatment unit 2, and is constituted by a water collecting basin 16 and a drainage pump 17, and is provided in the microbial filter bed 7. The treated water collected by the water collecting pipe 15 provided in the collecting basin 1
6, the water stored in the water collecting basin 16 can be sent to the tap water by the discharge pump 17.
そして、上記構成に基づく、本実施例の微生物濾床型廃
水処理装置は、次のようにして廃水処理を行う。Then, the microbial filter-bed wastewater treatment device of this embodiment based on the above configuration performs wastewater treatment as follows.
まず、二次処理槽４で処理された処理水を送水ポンプ５
によって汲み上げ、送水管６を介して微生物処理部２に
送水する。送水された処理水は、微生物処理部２を形成
する上部トレンチ８、下部トレンチ９に内設されている
散水管１１の複数個の孔あるいはスリットを介して微生
物濾床７に間歇的に散水される。そして、散水された処
理水は、まず、微生物コーティングされた充填骨材１２
に接触し、ここである程度、微生物処理されると共に、
二次処理水中に残存するＳＳ等が充填骨材１２の表面に
付着、あるいは止水膜１４内底に沈着する。そして、止
水膜１４に受けられた処理水は、充填骨材１２のネット
１３上の微細骨材１０の表面あるいは、その隙間を毛細
管誘導現象により、微生物濾床７の全体積中に自然給水
分散される。ここで、処理水中のＳＳ、有機物等が微生
物濾床７で、吸水分解され、該処理水が三次処理される
ように作用する。First, the treated water treated in the secondary treatment tank 4 is supplied with a water pump 5
The water is pumped up by the water and sent to the microbial treatment section 2 through the water pipe 6. The sent treated water is intermittently sprinkled on the microbial filter bed 7 through a plurality of holes or slits of the sprinkling pipe 11 provided in the upper trench 8 and the lower trench 9 forming the microbial treatment section 2. It Then, the treated water that has been sprinkled is first filled with a microbial-coated filled aggregate 12
To some extent, where there is some microbial treatment,
The SS or the like remaining in the secondary treated water adheres to the surface of the filled aggregate 12 or deposits on the inner bottom of the water blocking film 14. The treated water received by the water blocking film 14 is naturally supplied to the surface of the fine aggregate 10 on the net 13 of the filled aggregate 12 or the gap between the treated aggregates by the capillary induction phenomenon into the entire volume of the microbial filter bed 7. Distributed. Here, SS, organic substances, etc. in the treated water are absorbed and decomposed by the microbial filter bed 7, and the treated water acts as a tertiary treatment.
ところで、微生物処理部２の上部トレンチ９と下部トレ
ンチ１０への給水は、二次処理水の流量変動によって、
下部トレンチ１０への散水管１１の散水容量が不足した
場合に、上部トレンチ９に送水できるようにされ、ま
た、微生物濾床７への処理水の給水は、微細骨材１０の
表面あるいは隙間を介して行われる毛細管誘導現象が、
有効な状態で作用するように微生物濾床７中の水は、不
飽和状態を保持するようになされる必要がある。すなわ
ち、集水枡１６の蓄水量（水位）に応じ、送水ポンプ５
による処理水の給水量を調整し、微生物濾床７の水が、
常に、不飽和状態を保持するようにしておく。By the way, the water supply to the upper trench 9 and the lower trench 10 of the microbial treatment unit 2 depends on the flow rate fluctuation of the secondary treated water.
When the sprinkling capacity of the sprinkling pipe 11 to the lower trench 10 is insufficient, water can be sent to the upper trench 9, and the treated water is supplied to the microbial filter bed 7 through the surface of the fine aggregate 10 or gaps. The capillary induction phenomenon that occurs through
The water in the microbial filter bed 7 must be adapted to remain unsaturated in order to work in an effective manner. That is, depending on the amount of stored water (water level) in the water collecting basin 16, the water pump 5
Adjust the amount of treated water by
Always keep the unsaturated state.
そして、微生物濾床７に自然給水分散された処理水は、
微生物濾床７で微生物処理されると共に、微生物処理部
２の上下部位に配置されている集水管１５に、毛細管誘
導現象でもって集水され、該集水された処理水は、集水
枡１６に蓄えられた後、排水ポンプ１７でもって放流あ
るいは中水道として送水される。ここで、集水枡１６に
よって、水質検査等も併せて行えるように作用し、検水
枡としての作用をする。Then, the treated water that is naturally supplied and dispersed in the microbial filter bed 7 is
The microorganisms are treated by the microorganism filter bed 7, and water is collected by the water collecting pipes 15 arranged in the upper and lower parts of the microorganism treating unit 2 by a capillary guiding phenomenon, and the collected treated water is collected by the water collecting box 16 After being stored in, the water is discharged by the drainage pump 17 or is sent as tap water. Here, the water collecting basin 16 acts so that water quality inspection and the like can be performed at the same time, and functions as a water measuring basin.
なお、本考案は、上述した実施例に限定されるものでな
く、本考案の要旨を変更しない範囲内で変形実施できる
ものを含む。It should be noted that the present invention is not limited to the above-described embodiments, but includes modifications that can be implemented without departing from the spirit of the present invention.
以上の説明より明らかなように、本考案の微生物濾床型
廃水処理装置によれば、表面張力が、微少〜０．０７ｇ
／cm2（２０℃）程度の性質を有するものを主体とした
骨材よりなる微細骨材充填層で形成し、処理水の吸水分
散を、上記骨材表面または隣接骨材隙間を通じての毛細
管誘導現象でもって行わせるようにしているので、処理
水が、万遍なく、濾床と接触し、微生物による消化が行
われ、また、微生物濾床への処理水の給水が、間歇給水
とされると共に、該微生物濾床における水が、不飽和状
態を維持されるようにして給水されるので、該給水に外
部エネルギーが、少なくて済むという効果を有する。As is apparent from the above description, according to the microbial filter bed wastewater treatment apparatus of the present invention, the surface tension is as small as 0.07 g.
/ Cm 2 (20 ° C), which is formed of a fine aggregate filling layer mainly composed of aggregates, and absorbs and disperses treated water by capillary action through the aggregate surface or the gap between adjacent aggregates. Since it is designed to be carried out by a phenomenon, the treated water is evenly contacted with the filter bed to be digested by microorganisms, and the supply of the treated water to the microbial filter bed is intermittent water supply. At the same time, since the water in the microbial filter bed is supplied so as to maintain the unsaturated state, there is an effect that external energy for the water supply can be small.
また、集水管が、微生物濾床の上下部位に設けられてい
るので、該濾床内部が、不飽和状態を保持でき、また微
生物濾床の上層部において、下層部より通気性が良好と
されているので、該上層部は、好気性微生物の活動を十
分に維持でき、該微生物の代謝エネルギーによる発熱に
よって上部外気の温度変化とは異なった恒温状態を保つ
ことができるという効果を有する。Further, since the water collecting pipes are provided at the upper and lower parts of the microbial filter bed, the inside of the filter bed can maintain an unsaturated state, and in the upper part of the microbial filter bed, the air permeability is better than that of the lower part. Therefore, the upper layer portion has an effect that the activity of aerobic microorganisms can be sufficiently maintained and a constant temperature state different from the temperature change of the upper outside air can be maintained due to the heat generated by the metabolic energy of the microorganisms.
従って、本考案によれば、ＢＯＤ濃度が２０〜４０PPM
以下の廃水を、小規模な設備でもって、しかも外部エネ
ルギーを極力少なくした条件下で、より一層浄水できる
ようにした微生物濾床型廃水処理装置を提供できる。Therefore, according to the present invention, the BOD concentration is 20-40 PPM.
It is possible to provide a microbial filter bed wastewater treatment device capable of further purifying the following wastewater with a small-scale facility and under conditions where external energy is minimized.
第１〜４図は、本考案の一実施例を示し、第１図は平面
図、第２図は側面図、第３図は給水部分のトレンチの構
造を説明するための拡大説明図、第４図は集水部の構造
を説明するための拡大説明図である。 １……送水部、２……微生物処理部、３……集水部、４
……二次処理槽、５……送水ポンプ、５、６……送水
管、７……微生物濾床、８……微細骨材、９……上部ト
レンチ、１０……下部トレンチ、１１……散水管、１２
……骨材（充填骨材）、１３……ネット、１４……止水
膜、１５……集水管、１６……集水枡、１７……排出ポ
ンプ1 to 4 show an embodiment of the present invention, FIG. 1 is a plan view, FIG. 2 is a side view, and FIG. 3 is an enlarged explanatory view for explaining a trench structure of a water supply portion, FIG. 4 is an enlarged explanatory view for explaining the structure of the water collecting portion. 1 ... water supply section, 2 ... microbial treatment section, 3 ... water collection section, 4
...... Secondary treatment tank, 5 ... Water pump, 5,6 ... Water pipe, 7 ... Microbial filter bed, 8 ... Fine aggregate, 9 ... Upper trench, 10 ... Lower trench, 11 ... Watering pipe, 12
…… Aggregate (filled aggregate), 13 …… Net, 14 …… Water stop membrane, 15 …… Water collection pipe, 16 …… Water collection box, 17 …… Drainage pump
Claims (1)
処理するための微生物濾床型廃水処理装置であって、該
処理水を送水するための送水部と、該送水部よりの処理
水を微生物処理するための微生物処理部と、該微生物処
理部で浄水された水を集水するための集水部とを有し、
該微生物処理部を、水に対する表面張力が、微少〜０．
０７ｇ／cm2（２０℃）程度の性質を有するものを主体
とした骨材によって形成した微細骨材充填層に好気性微
生物を主体とした微生物濾床を形成させた処理部とし、
また、送水部は、該処理部における微生物濾床への給水
量が、不飽和状態を保つ範囲内で間歇的に給水するよう
に形成し、また上記微細骨材充填層内に処理水を給水す
るためのトレンチを上下部位に配置し、下部給水管の給
水能力を越えた場合に、上部給水トレンチに給水を行な
い、処理水量の時間的変動に対応させると共に、上記微
細骨材充填層における微生物濾床へ均一散水できるよう
にし、更に微細骨材充填層の上下層で、異なる通気状態
とし、該上層部の通気性を下層部の通気性より良好な層
とし、微生物の代謝エネルギーによる発熱によって上部
外気の温度変化とは異なった恒温状態を保つことように
し、かつ上記微細骨材充填層の微生物濾床で浄水された
水を集水するための集水部を形成する集水管を、上部給
水トレンチの上部位と、下部トレンチの下部とにそれぞ
れ設け、上記微生物濾床への給水量に応じて、この上部
と下部の集水管より集水することができるようにしたこ
とを特徴とする微生物濾床型廃水処理装置。1. A microbial filter bed wastewater treatment apparatus for treating wastewater having a water quality of BOD of 20-40 PPM or less, wherein a water-feeding unit for feeding the treated water and a treated water from the water-feeding unit are microorganisms. A microbial treatment unit for treating, and a water collecting unit for collecting the water purified by the microbial treating unit,
The surface treatment with respect to water of the microbial treatment part is from very small to 0.
A treatment section in which a microbial filter bed mainly composed of aerobic microorganisms is formed in a fine aggregate packed layer formed of an aggregate mainly composed of a material having a property of about 07 g / cm 2 (20 ° C.),
Further, the water supply unit is formed so that the amount of water supplied to the microbial filter bed in the processing unit intermittently supplies water within a range where an unsaturated state is maintained, and the treated water is supplied into the fine aggregate-filled layer. The trenches for arranging are arranged at the upper and lower parts, and when the water supply capacity of the lower water supply pipe is exceeded, water is supplied to the upper water supply trench to respond to the temporal fluctuation of the treated water amount, and the microorganisms in the fine aggregate packed bed To allow uniform water sprinkling to the filter bed, and to make different ventilation states in the upper and lower layers of the fine aggregate filling layer, the upper layer is made to have better air permeability than the lower layer, and the heat generated by metabolic energy of microorganisms It is intended to maintain a constant temperature state different from the temperature change of the upper outside air, and a water collecting pipe forming a water collecting portion for collecting the water purified by the microbial filter bed of the fine aggregate packing layer, Top of water supply trench And the lower part of the lower trench, respectively, and according to the amount of water supplied to the microbial filter bed, it is possible to collect water from the upper and lower water collecting pipes, microbial filter bed wastewater Processing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989119344U JPH0621598Y2 (en) | 1989-10-11 | 1989-10-11 | Microbial filter bed wastewater treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989119344U JPH0621598Y2 (en) | 1989-10-11 | 1989-10-11 | Microbial filter bed wastewater treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0359098U JPH0359098U (en) | 1991-06-10 |
| JPH0621598Y2 true JPH0621598Y2 (en) | 1994-06-08 |
Family
ID=31667470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989119344U Expired - Lifetime JPH0621598Y2 (en) | 1989-10-11 | 1989-10-11 | Microbial filter bed wastewater treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621598Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6362279B2 (en) | 2014-07-21 | 2018-07-25 | インテル アイピー コーポレーション | Neighbor cell system information provisioning |
-
1989
- 1989-10-11 JP JP1989119344U patent/JPH0621598Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6362279B2 (en) | 2014-07-21 | 2018-07-25 | インテル アイピー コーポレーション | Neighbor cell system information provisioning |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0359098U (en) | 1991-06-10 |
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