JPH0483593A - Apparatus for simultaneously removing nitrogen and phosphorus in waste water - Google Patents
Apparatus for simultaneously removing nitrogen and phosphorus in waste waterInfo
- Publication number
- JPH0483593A JPH0483593A JP2198454A JP19845490A JPH0483593A JP H0483593 A JPH0483593 A JP H0483593A JP 2198454 A JP2198454 A JP 2198454A JP 19845490 A JP19845490 A JP 19845490A JP H0483593 A JPH0483593 A JP H0483593A
- Authority
- JP
- Japan
- Prior art keywords
- filter bed
- tank
- water
- bed tank
- aerobic
- 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
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 24
- 239000011574 phosphorus Substances 0.000 title claims abstract description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims description 28
- 229910052757 nitrogen Inorganic materials 0.000 title claims description 14
- 239000002351 wastewater Substances 0.000 title claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000000835 fiber Substances 0.000 claims abstract description 48
- 239000011435 rock Substances 0.000 claims abstract description 37
- 239000002689 soil Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000011148 porous material Substances 0.000 claims description 8
- 238000005273 aeration Methods 0.000 claims description 7
- 241001233061 earthworms Species 0.000 claims description 5
- 238000004065 wastewater treatment Methods 0.000 claims description 4
- 238000000354 decomposition reaction Methods 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 238000006396 nitration reaction Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000005416 organic matter Substances 0.000 description 9
- 241000894006 Bacteria Species 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 125000001477 organic nitrogen group Chemical group 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001546 nitrifying effect Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000000404 calcium aluminium silicate Substances 0.000 description 1
- 235000012215 calcium aluminium silicate Nutrition 0.000 description 1
- 229940078583 calcium aluminosilicate Drugs 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000009271 trench method Methods 0.000 description 1
- 238000009423 ventilation Methods 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)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
【発明の詳細な説明】
Ａ、産業上の利用分野
この発明は排水中の窒素およびリンを同時に除去する処
理装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application This invention relates to a treatment device for simultaneously removing nitrogen and phosphorus from wastewater.
Ｂ１発明の概要
この発明は排水中の窒素およびリンの同時除去処理装置
において、
嫌気性濾床槽と好気性濾床槽を組み合わせ、好気性濾床
槽のＰ床材料にロックファイバーまたはロックファイバ
ーと土壌とを組み合わせて使用したことにより、
土壌だけのものより目詰まりが起こりにくく、かつ許容
水量負荷を高くすることができ、しかも交換が容易にで
きるようにしたものである。B1 Summary of the Invention This invention is a treatment device for simultaneous removal of nitrogen and phosphorus from wastewater, which combines an anaerobic filter bed tank and an aerobic filter bed tank, and uses rock fiber or rock fiber as the P bed material of the aerobic filter bed tank. By using it in combination with soil, clogging is less likely to occur than with soil alone, the allowable water load can be increased, and replacement is easy.
Ｃ８従来の技術
排水中の窒素およびリンを同時に除去する手段として嫌
気性Ｐ床梁水型土壌トレンチ循環処理装置（参考として
、用水と廃水、Ｖｏｆｆ、 ３２、Ｎ０９２．１９９０
、 Ｐ ４５）が開発されている。この処理装置は第６
図に示すように構成されている。第６図において、１は
排水中の原水が流入される嫌気性濾床槽で、この槽１か
ら排出された水は土壌トレンチ槽２に流入する。流入し
た水は、まず、槽２の上部に配設されているトレンチ２
ａに一時滞留した後、周囲の黒ボク土２ｂに浸透し、砂
利層２ｃを通って貯留槽３に一時貯留される。貯留槽３
の一部は処理水として排出され、残りはポンプ４により
循環水として流入原水と混合されて再び嫌気性濾床槽１
に流入される。C8 Conventional technology Anaerobic P floor beam water type soil trench circulation treatment device as a means to simultaneously remove nitrogen and phosphorus from wastewater (for reference, Water and Wastewater, Voff, 32, N092.1990
, P45) has been developed. This processing device is the 6th
It is configured as shown in the figure. In FIG. 6, reference numeral 1 denotes an anaerobic filter bed tank into which raw water in wastewater flows, and water discharged from this tank 1 flows into a soil trench tank 2. The inflowing water first flows into the trench 2 installed at the top of the tank 2.
After temporarily staying in a, it penetrates into the surrounding black soil 2b, passes through a gravel layer 2c, and is temporarily stored in a storage tank 3. Storage tank 3
A part of the water is discharged as treated water, and the rest is mixed with the incoming raw water as circulating water by the pump 4 and returned to the anaerobic filter bed tank 1.
is flowing into the country.
上記のように構成された処理装置は維持管理が容易で、
かつ汚泥発生量が少ない嫌気性濾床槽１と有機物とリン
の除去能が高い土壌トレンチ法を組み合わせた処理プロ
セスである。特に土壌トレンチ浸透水を再び嫌気性濾床
槽１に循環させることにより窒素の除去も可能とした処
理プロセスである。上記処理装置はリンの除去率が高く
上述のよう維持管理が容易で、かつ汚泥発生量が少ない
と言う特徴から小規模向は処理装置としては有力である
。The processing equipment configured as above is easy to maintain and manage.
This treatment process combines an anaerobic filter bed tank 1 that generates a small amount of sludge and a soil trench method that has a high ability to remove organic matter and phosphorus. In particular, this treatment process also makes it possible to remove nitrogen by circulating soil trench permeation water back to the anaerobic filter bed tank 1. The above-mentioned treatment equipment has a high phosphorus removal rate, is easy to maintain and manage as mentioned above, and generates a small amount of sludge, so it is effective as a treatment equipment for small-scale use.
Ｂ９発明が解決しようとする課題
上述した嫌気性Ｐ床梁水型土壌トレンチ循環処理装置は
水量負荷が低い場合には浄化能が長期間良好に維持され
る特徴があるけれども、水量負荷を高くすると土壌の目
詰まりが生じてくる欠点がある。この原因として浮遊物
質や細菌、菌類等の増殖と、それに伴う分泌物質等の蓄
積により、土壌粒子間の間隙が塞がれることによるもの
と考えられている。B9 Problems to be Solved by the Invention Although the above-mentioned anaerobic P floor beam water type soil trench circulation treatment device has the characteristic that the purification ability is maintained well for a long period of time when the water load is low, however, when the water load is high, The disadvantage is that the soil becomes clogged. This is thought to be caused by the growth of suspended solids, bacteria, fungi, etc., and the accompanying accumulation of secreted substances, which clog the gaps between soil particles.
目詰まりが起こるとリン除去能が低下する。これは土壌
が嫌気的になり、土壌に吸着していたリンが溶出するた
めと考えられている。また、水量負荷を高くすると窒素
除去率が低下する。これは土壌中の好気的雰囲気が十分
保持されないために、硝化能が低下するからである。上
述のように土壌トレンチ処理手段は水量負荷を高くする
と、土壌が目詰まりしたり、嫌気的雰囲気を調節するの
が、やや困難な欠点がある。さらに、上記処理手段でも
黒ボク土の種類によっては浄化能が異なり、許容水量負
荷に差が生じる。このため、目詰まりを防止するには水
量負荷を許容水量負荷より、かなり低くしなければなら
ない問題がある。この他、土壌に目詰まりが生じた場合
、あるいはリンが吸着飽和に達してリンの除去率が低下
した場合、土壌を交換しなければならない。この土壌の
交換は極めて手間がかかるという問題もある。When clogging occurs, the phosphorus removal ability decreases. This is thought to be because the soil becomes anaerobic and the phosphorus adsorbed in the soil is leached out. Furthermore, when the water load is increased, the nitrogen removal rate decreases. This is because the aerobic atmosphere in the soil is not maintained sufficiently, resulting in a decrease in nitrification ability. As mentioned above, the soil trench treatment means has drawbacks such as clogging of the soil when the water load is increased and it is somewhat difficult to control the anaerobic atmosphere. Furthermore, the purification ability of the above-mentioned treatment means differs depending on the type of black soil, resulting in a difference in allowable water load. Therefore, in order to prevent clogging, there is a problem in that the water load must be considerably lower than the allowable water load. In addition, the soil must be replaced if it becomes clogged or if phosphorus adsorption saturation is reached and the phosphorus removal rate decreases. Another problem is that replacing this soil is extremely time-consuming.
この発明は上記の事情に鑑みてなされたもので、目詰ま
りを起こしにくく、かつ許容水量負荷を高くすることが
できる排水中の窒素およびリンの同時除去処理装置を提
供することを目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a treatment device for simultaneous removal of nitrogen and phosphorus from wastewater, which is less likely to cause clogging and is capable of increasing the permissible water load.
８９課題を解決するための手段
この発明は嫌気性濾床槽と好気性濾床槽を組み合わせた
排水処理システムにおいて、
好気性濾床槽の濾床材料としてロックファイバーまたは
ロックファイバーと土壌を組み合わせて使用したことを
特徴とするものである。89 Means for Solving the Problems This invention provides a wastewater treatment system that combines an anaerobic filter bed tank and an aerobic filter bed tank, using rock fiber or a combination of rock fiber and soil as the filter bed material of the aerobic filter bed tank. It is characterized by its use.
また、この発明の好気性濾床槽はロックファイバーの空
隙の大きさが異なる複数の種類からなり、空隙の大きい
ものを上層に、空隙の小さいものを下層になるように積
層したことを特徴とするものである。Further, the aerobic filter bed tank of the present invention is characterized in that it consists of a plurality of types of rock fibers having different pore sizes, and is stacked such that those with large pores are in the upper layer and those with small pores are in the lower layer. It is something to do.
さらに、この発明に使用されるロックファイバーおよび
土壌の中にミミズを飼育することを特徴とするものであ
る。Furthermore, the present invention is characterized in that earthworms are raised in the rock fiber and soil used in this invention.
さらにまた、この発明は嫌気性濾床槽と好気性濾床槽を
組み合わせた排水処理システムにおいて、好気性濾床槽
の濾床材料としてロックファイバーを使用し、このロッ
クファイバーを炉の中に浸漬して通気曝気を行い、好気
性濾床槽の流出水の一部を循環させて流入原水とともに
嫌気性濾床槽に返流させるように構成したものである。Furthermore, the present invention provides a wastewater treatment system that combines an anaerobic filter bed tank and an aerobic filter bed tank, in which rock fibers are used as the filter bed material of the aerobic filter bed tank, and the rock fibers are immersed in a furnace. This system is configured to perform aeration and aeration, and to circulate a portion of the outflow water from the aerobic filter bed tank and return it to the anaerobic filter bed tank together with the inflow raw water.
Ｆ９作用
流入原水が嫌気性濾床槽に導入され、この槽で有機物の
嫌気分解によるメタン生成、有機性窒素の分解によるア
ンモニア性窒素の生成および脱窒反応が同時に行われる
。嫌気性濾床槽での生成および反応が行われた水は好気
性濾床槽に流入される。この槽ではロックファイバーあ
るいはロックファイバーと土壌によるリン吸着除去、Ｐ
床内に繁殖した細菌による有機物除去と硝化菌による硝
化が行われる。上記両槽により排水中の有機物、窒素、
リンの同時除去が行われる。F9 action inflow raw water is introduced into an anaerobic filter bed tank, where methane production by anaerobic decomposition of organic matter, ammonia nitrogen production by organic nitrogen decomposition, and denitrification reaction are simultaneously performed. The water produced and reacted in the anaerobic filter bed tank flows into the aerobic filter bed tank. In this tank, phosphorus is adsorbed and removed by rock fiber or rock fiber and soil.
Bacteria growing in the floor remove organic matter and nitrifying bacteria perform nitrification. Organic matter, nitrogen, and
Simultaneous removal of phosphorus takes place.
Ｇ、実施例
以下この発明の一実施例を図面に基づいて説明するに、
第６図と同一部分は同一符号を付して示す。G. Example Hereinafter, an example of the present invention will be described based on the drawings.
Components that are the same as those in FIG. 6 are designated by the same reference numerals.
第１図において、１１は好気性濾床槽で、この槽１１に
はトレンチ１２を槽上部に設ける。１３はロックファイ
バー層で、ロックファイバー層１３は槽１１の下層に設
けられる砂利層１４の上にトレンス１２が埋没するまで
槽１１内に充填される。ここで、ロックファイバーにつ
いて述べる。In FIG. 1, 11 is an aerobic filter bed tank, and this tank 11 is provided with a trench 12 in the upper part of the tank. 13 is a rock fiber layer, and the rock fiber layer 13 is filled into the tank 11 until the trench 12 is buried above the gravel layer 14 provided below the tank 11. Here, we will discuss lock fiber.
ロックファイバーとは高炉スラグと天然石を主原料とし
てキューポラで高温溶解し、遠心力により吹き飛して繊
維としたものである。このロックファイバーは土壌の代
用となるもので成分組成から判断してリンを吸着する作
用がある。このため、最近、農業分野において、ロック
ファイバー栽培という養液栽培が普及している。（ＢＩ
ＯＩＮＤＩＪｓＴＲＹ。Rock fiber is made from blast furnace slag and natural stone, which are melted at high temperatures in a cupola and blown away by centrifugal force to form fibers. This rock fiber is a substitute for soil, and judging from its composition, it has the ability to adsorb phosphorus. For this reason, hydroponic cultivation called rock fiber cultivation has recently become popular in the agricultural field. (BI
OINDIJsTRY.
Ｖｏｌ、３． Ｎｏ、１２１９８６）
前記好気性濾床槽１１のロックファイバー層１３には閉
塞防止用としてミミズ１４を接種して飼育する。Vol.3. No. 121986) Earthworms 14 are inoculated and reared in the rock fiber layer 13 of the aerobic filter bed tank 11 to prevent clogging.
次に上記のように構成された好気性Ｆ原種１１を使用実
施例の作用について述べる。流入原水は、まず嫌気性濾
床槽１に流入する。この槽１においては、前述したよう
に有機物の嫌気分解によるメタン生成、有機性窒素の分
解によるアンモニア性窒素の生成および脱窒反応が同時
に進行する。嫌気性濾床槽１から排出され水は好気性濾
床槽１１のトレンチ１２に一時滞留された後、周囲のロ
ックファイバー層１３に浸透するとともにこの層１３内
を流下して砂利層１６の周囲に設けられた開口部１５よ
り排出される。水がロックファイバー層１３を流下して
行くとき、この層１３て硝化反応とリンの吸着および有
機物の好気的分解が起こる。Next, the effects of an example using the aerobic F original species 11 constructed as described above will be described. The inflow raw water first flows into the anaerobic filter bed tank 1. In this tank 1, as described above, methane production by anaerobic decomposition of organic matter, ammonia nitrogen production by decomposition of organic nitrogen, and denitrification reaction proceed simultaneously. The water discharged from the anaerobic filter bed tank 1 is temporarily retained in the trench 12 of the aerobic filter bed tank 11, and then permeates into the surrounding rock fiber layer 13 and flows down within this layer 13 to surround the gravel layer 16. It is discharged from an opening 15 provided in the. As water flows down the rock fiber layer 13, nitrification reactions, phosphorus adsorption, and aerobic decomposition of organic matter occur in this layer 13.
前記開口部１５より排出された水は貯留槽３に貯留され
、一部は処理水として放流されるが、残りはポンプ４に
より循環水として再び嫌気性濾床槽１に返送される。循
環水対流入水の比率は２：１が適正である。The water discharged from the opening 15 is stored in the storage tank 3, and part of it is discharged as treated water, but the rest is returned to the anaerobic filter bed tank 1 as circulating water by the pump 4. A suitable ratio of circulating water to inflow water is 2:1.
上述のように流入原水は嫌気性濾床槽１において、有機
物除去、有機性窒素からのアンモニア生成および脱窒反
応が行われた後、その処理水は好気性濾床槽に流入され
る。この後好気性濾床槽においては、リン吸着除去、炉
床内に繁殖した細菌による有機物除去と硝化菌による硝
化が行われる。As described above, the inflowing raw water undergoes organic matter removal, ammonia production from organic nitrogen, and denitrification reactions in the anaerobic filter bed tank 1, and then the treated water flows into the aerobic filter bed tank. After this, in the aerobic filter bed tank, phosphorus is adsorbed and removed, organic matter is removed by bacteria that have grown in the hearth, and nitrification is performed by nitrifying bacteria.
このような処理が行われることにより、排水中の有機物
、窒素、リンの同時除去処理が行われることになる。こ
こで、ロックファイバーの化学成分を示すと次表になる
。この表からリンを吸着する作用はケイ酸カルシウムあ
るいはアルミノケイ酸塩によるものと考えられる。By performing such a treatment, organic matter, nitrogen, and phosphorus in the wastewater are simultaneously removed. Here, the chemical composition of rock fiber is shown in the following table. From this table, it is thought that the action of adsorbing phosphorus is due to calcium silicate or aluminosilicate.
ロックファイバーの化学成分表
第２図から第４図は好気性Ｆ原種１１内に充填するもの
を種々異なるようにした場合の例で、第２図はロックフ
ァイバー層１３と土壌とを組み合わせたもので、土壌層
には黒ボク土１７を使用したものである。Chemical composition table of rock fibers Figures 2 to 4 show examples of different materials filled in the aerobic F seed 11, and Figure 2 shows a combination of rock fiber layer 13 and soil. Kuroboku Soil 17 was used for the soil layer.
第３図はロックファイバー層１３のロックファイバーの
空隙の大きさを大、中、小に製造したものを上部から、
空隙が大きいロックファイバー層１３ａ、空隙が中程度
の口・ツクファイバー層１３ｂおよび空隙が小さいロッ
クファイバー層１３ｃと重ねて充填した場合の使用例で
ある。Fig. 3 shows the lock fiber layer 13 manufactured with large, medium, and small void sizes, starting from the top.
This is an example of use in the case where a lock fiber layer 13a with large voids, a fiber layer 13b with medium voids, and a lock fiber layer 13c with small voids are stacked and filled.
第４図は空隙の大きさが異なる複数の種類のロックファ
イバーを重ね（実施例では空隙が大小のロックファイバ
ー層１３ａ、１３Ｃを重ねた）その下部に土壌層となる
黒ボク土１７、砂利層１６を設けた使用例である。なお
、第２図から第４図のロックファイバー層１３および土
壌層１７には目詰まり防止用としてミミズ１４を接種し
て飼育する。Figure 4 shows a stack of multiple types of rock fibers with different void sizes (in the example, rock fiber layers 13a and 13C with large and small voids are stacked), and below them is a soil layer 17 and a gravel layer. This is an example of use in which 16 are provided. Note that the rock fiber layer 13 and soil layer 17 shown in FIGS. 2 to 4 are inoculated with earthworms 14 to prevent clogging and are raised therein.
上記実施例は口、クツアイバーを散水炉床に近い方式で
使用したが、それに対して、空隙が大きいロックファイ
バーを水中に浸漬して通気曝気を行う手段もある。第５
図は嫌気性濾床槽−浸漬型好気性炉床循環処理装置の概
略構成図で、第５図において２１は嫌気性濾床槽で、こ
の槽２１は前記実施例と同様のものである。２２は好気
性濾床槽で、この槽２２内にはロックファイバー浸ｉｆ
床２３が収容されるとともに槽２２内に水を満たして通
気曝気装置２４が設けられている。２５は一時貯留槽、
２６は沈澱槽、２７は循環ポンプである。In the above embodiments, a cut-eye bar was used in a manner similar to a watering hearth, but there is also a method of immersing rock fibers with large pores in water for aeration. Fifth
The figure is a schematic diagram of an anaerobic filter bed tank-submerged aerobic hearth circulation treatment apparatus. In FIG. 5, 21 is an anaerobic filter bed tank, and this tank 21 is the same as that in the previous embodiment. 22 is an aerobic filter bed tank, and this tank 22 is filled with rock fibers if
A floor 23 is accommodated, and a tank 22 is filled with water and an aeration device 24 is provided. 25 is a temporary storage tank;
26 is a settling tank, and 27 is a circulation pump.
第５図の実施例において、流入原水は嫌気性ｒ原種２１
に流入した後、上述したような反応の後、排水され、そ
の水が好気性濾床槽２２に導入される。この槽２２で上
記と同様の処理が行われた後、槽２２から流出した水が
一時貯留槽２５に導入される。−時貯留槽２５の一部の
水は循環ポンプ２７により循環水として流入原水に混合
され、残りは沈澱槽２６に流入し、ここで固液分離され
る。In the example shown in FIG. 5, the inflow raw water is an anaerobic raw material
After the reaction as described above, the water is drained and introduced into the aerobic filter bed tank 22. After the same treatment as described above is performed in this tank 22, the water flowing out from the tank 22 is introduced into a temporary storage tank 25. - A part of the water in the storage tank 25 is mixed with the incoming raw water as circulating water by the circulation pump 27, and the rest flows into the settling tank 26, where it is separated into solid and liquid.
上澄水は処理水として排出され、沈澱した汚泥は余剰汚
泥として引抜かれて処理される。The supernatant water is discharged as treated water, and the settled sludge is extracted as surplus sludge and treated.
上記第５図の実施例では通気曝気する関係で、ランニン
グコストがかかるけれども槽容積当たりの処理能力が大
きく、窒素、リンの除去性能も従来のものに比較しても
劣らない。In the embodiment shown in FIG. 5, running costs are high due to ventilation and aeration, but the processing capacity per tank volume is large, and the nitrogen and phosphorus removal performance is comparable to conventional systems.
Ｈ１発明の効果
以上述べたように、この発明によれば、ロックファイバ
ーを使用しているので目詰まりを起こしに＜＜、かつロ
ックファイバーは空隙率の調節が容易でしかも化学組成
も一様であるので許容水量負荷のばらつきが少なく、水
量負荷を高くすることができる。また、口、クツアイバ
ーは交換が容易でしかも使用済のロックファイバーは乾
燥して粉砕すれば肥料として使用できる。あるいは加工
しなくても植物の養液栽培に使用することも可能である
。H1 Effects of the invention As mentioned above, according to this invention, since lock fibers are used, clogging is less likely to occur, and the lock fibers are easy to adjust the porosity and have a uniform chemical composition. Therefore, there is less variation in the allowable water load, and the water load can be increased. In addition, the mouth and hair fibers are easy to replace, and the used rock fibers can be used as fertilizer by drying and crushing them. Alternatively, it can be used for hydroponic cultivation of plants without being processed.
第１°図はこの発明の一実施例を示す概略的な構成説明
図、第２図から第４図までは好気性濾床槽の異なる使用
例を示す概略構成説明図、第５図はこの発明の他の実施
例を示す概略的な構成説明図、第６図は従来例の概略的
な構成説明図である。
１．２１・・・嫌気性濾床槽、１１．２２・・・好気性
Ｆ原種、１２・・・トレンチ、１３・・・ロソクファイ
ノで一層、１３ａ・・・空隙が大きい口・ツクファイ、
＜−層、１３ｂ・・・空隙が中程度のロックファイバー
層、１３Ｃ・・・空隙が小さいロックファイバー層、１
４・・・ミミズ、１６・・・砂利層、１７・・・黒ボク
土。
外１′６
第１図
ｔｖｉすｏｉｅ’Ａ第１噛ｒｆ！ｉｔｌ’ｔｙすｑｍｌ
−−−−−ｉヤトに４２１−小ｊ主ニー５ｒ床第１３−
−−−−ｒ ！槽
４−−−−−ポンプ
１１−−−−一奸ａＪ乞す次槽
１２−−−−−）レンチ
１３−−−−一ロ７クフ７／Ｉバー
１４−−−−登ミズ
１６−−−−−−−砂利１
１７−−−−−・−黒ボク上
第２図
安シ外小生ｌｉｔｓｍ丈用イ９’ＩＯ！呼■ハ第３図
第４図Fig. 1 is a schematic structural explanatory diagram showing one embodiment of the present invention, Figs. 2 to 4 are schematic structural explanatory diagrams showing different usage examples of an aerobic filter bed tank, and Fig. A schematic structural explanatory diagram showing another embodiment of the invention, and FIG. 6 is a schematic structural explanatory diagram of a conventional example. 1.21...Anaerobic filter bed tank, 11.22...Aerobic F original species, 12...Trench, 13...Losokufaino makes it even better, 13a...Large pores/Tsukufai,
<- layer, 13b...Lock fiber layer with medium voids, 13C...Lock fiber layer with small voids, 1
4...earthworms, 16...gravel layer, 17...black soil. Outside 1'6 Figure 1 tvisoie'A 1st bite rf! itl'tysqml
----i Yato ni 421-Small j main knee 5R floor 13th-
-----r! Tank 4 ------- Pump 11 ---- One stroke aJ next tank 12 ----) Wrench 13 ---- Iro 7 Khufu 7 / I bar 14 ---- Noboru Mizu 16 - -------Gravel 1 17-------・-Black me upper 2nd figure cheap outside small student litsm length I9'IO! Figure 3 Figure 4
Claims (4)
処理システムにおいて、 好気性濾床槽の濾床材料としてロックファイバーまたは
ロックファイバーと土壌を組み合わせて使用したことを
特徴とする排水中の窒素およびリンの同時除去処理装置
。(1) A wastewater treatment system that combines an anaerobic filter bed tank and an aerobic filter bed tank, characterized in that rock fiber or a combination of rock fiber and soil is used as a filter bed material in the aerobic filter bed tank. A treatment device that simultaneously removes nitrogen and phosphorus from inside.
きさが異なる複数の種類からなり、空隙の大きいものを
上層に、空隙の小さいものを下層になるように積層した
ことを特徴とする請求項１に記載の排水中の窒素および
リンの同時除去処理装置。(2) The aerobic filter bed tank is characterized in that it consists of a plurality of types of rock fibers with different pore sizes, and is stacked so that those with larger pores are in the upper layer and those with smaller pores are in the lower layer. The simultaneous removal treatment device for nitrogen and phosphorus in wastewater according to claim 1.
飼育することを特徴とする請求項１および請求項２に記
載の排水中の窒素およびリンの同時除去処理装置。(3) The device for simultaneous removal of nitrogen and phosphorus from wastewater according to Claims 1 and 2, characterized in that earthworms are raised in the rock fibers and soil.
処理システムにおいて、 好気性濾床槽の濾床材料としてロックファイバーを使用
し、このロックファイバーを濾の中に浸漬して通気曝気
を行い、好気性濾床槽の流出水の一部を循環させて流入
原水とともに嫌気性濾床槽に返流させるように構成した
ことを特徴とする排水中の窒素およびリンの同時除去処
理装置。(4) In a wastewater treatment system that combines an anaerobic filter bed tank and an aerobic filter bed tank, rock fibers are used as the filter bed material of the aerobic filter bed tank, and the rock fibers are immersed in the filter for aeration. A simultaneous removal treatment for nitrogen and phosphorus in wastewater, characterized in that it is configured to perform aeration, circulate part of the outflow water from the aerobic filter bed tank, and return it to the anaerobic filter bed tank together with the inflow raw water. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2198454A JPH0483593A (en) | 1990-07-26 | 1990-07-26 | Apparatus for simultaneously removing nitrogen and phosphorus in waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2198454A JPH0483593A (en) | 1990-07-26 | 1990-07-26 | Apparatus for simultaneously removing nitrogen and phosphorus in waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0483593A true JPH0483593A (en) | 1992-03-17 |
Family
ID=16391376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2198454A Pending JPH0483593A (en) | 1990-07-26 | 1990-07-26 | Apparatus for simultaneously removing nitrogen and phosphorus in waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0483593A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441525C (en) * | 2006-04-20 | 2008-12-10 | 上海交通大学 | Method for preparing filtration material for earthworm biofilter |
| WO2012004893A1 (en) * | 2010-07-09 | 2012-01-12 | 小川 弘 | Wastewater treatment device |
| CN109553191A (en) * | 2018-12-04 | 2019-04-02 | 浙江大学 | Rural area landscape type ecological canal nitrogen phosphorus intercepting system and method |
-
1990
- 1990-07-26 JP JP2198454A patent/JPH0483593A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441525C (en) * | 2006-04-20 | 2008-12-10 | 上海交通大学 | Method for preparing filtration material for earthworm biofilter |
| WO2012004893A1 (en) * | 2010-07-09 | 2012-01-12 | 小川 弘 | Wastewater treatment device |
| CN109553191A (en) * | 2018-12-04 | 2019-04-02 | 浙江大学 | Rural area landscape type ecological canal nitrogen phosphorus intercepting system and method |
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