JPH0410399B2 - - Google Patents
Info
- Publication number
- JPH0410399B2 JPH0410399B2 JP59094083A JP9408384A JPH0410399B2 JP H0410399 B2 JPH0410399 B2 JP H0410399B2 JP 59094083 A JP59094083 A JP 59094083A JP 9408384 A JP9408384 A JP 9408384A JP H0410399 B2 JPH0410399 B2 JP H0410399B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- waterway
- aquatic plants
- filler
- nitrogen
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 241000196324 Embryophyta Species 0.000 claims description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 19
- 239000000945 filler Substances 0.000 claims description 18
- 238000005273 aeration Methods 0.000 claims description 15
- 238000000746 purification Methods 0.000 claims description 15
- 230000005484 gravity Effects 0.000 claims description 14
- 239000002351 wastewater Substances 0.000 claims description 14
- 244000005700 microbiome Species 0.000 claims description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims description 9
- 239000011574 phosphorus Substances 0.000 claims description 9
- 240000005407 Nasturtium officinale Species 0.000 claims description 6
- 235000017879 Nasturtium officinale Nutrition 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- VTEIFHQUZWABDE-UHFFFAOYSA-N 2-(2,5-dimethoxy-4-methylphenyl)-2-methoxyethanamine Chemical compound COC(CN)C1=CC(OC)=C(C)C=C1OC VTEIFHQUZWABDE-UHFFFAOYSA-N 0.000 claims description 4
- 240000003826 Eichhornia crassipes Species 0.000 claims 1
- 241000169203 Eichhornia Species 0.000 description 12
- 241000894006 Bacteria Species 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000011282 treatment Methods 0.000 description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 2
- 241001148470 aerobic bacillus Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000001546 nitrifying effect Effects 0.000 description 2
- 235000019645 odor Nutrition 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 229920000114 Corrugated plastic Polymers 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000003756 stirring 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)
Description
【発明の詳細な説明】
本発明は、自然流下型水路内において、特殊な
水生植物、微生物及び曝気の各作用を同時に利用
し得る浄化装置を用いることにより、汚水中の有
機性汚濁物（以下、「BOD」と略記する。）、窒素
化合物（以下、「窒素」と略記する。）及びリン化
合物（以下、「リン」と略記する。）を同時に効率
よく除去する自然流下型汚水浄化方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention aims to eliminate organic pollutants (hereinafter referred to as , abbreviated as "BOD"), nitrogen compounds (hereinafter abbreviated as "nitrogen"), and phosphorus compounds (hereinafter abbreviated as "phosphorus") simultaneously and efficiently. It is something.
従来の自然流下型汚水浄化装置としては下記の
ものが知られている：
(イ) 特殊の水生植物（ホテイアオイ、オランダガ
ラシ等）のみを自然流下型水路内に浮遊させて
汚水を浄化する装置。 The following types of conventional gravity flow sewage purification devices are known: (a) A device that purifies sewage by suspending only special aquatic plants (water hyacinth, water hyacinth, etc.) in a gravity flow waterway.
(ロ) 充てん材を自然流下型水路内に設置して該充
てん材表面に着生する微生物等（バクテリア
等）の膜で汚水を浄化する装置。(b) A device that purifies wastewater by installing a filling material in a gravity-flowing waterway and using a film of microorganisms, etc. (bacteria, etc.) that grows on the surface of the filling material.
(ハ) 自然流下型水路内に曝気装置のみを設けて発
生する浮遊微生物（バクテリア等）で汚水を浄
化する装置。(c) A device that purifies wastewater using floating microorganisms (bacteria, etc.) that are generated by installing only an aeration device in a gravity-flowing waterway.
しかしながら、上記(イ)の装置は、汚水中の
BODに関してはホテイアオイ、オランダガラシ
等の水生植物の根に繁殖する微生物による好気的
ないしは嫌気的作用で除去し、窒素及びリンに関
しては該水生植物の根からの吸収作用により除去
するので、必然的に広大な面積を必要とし、効率
の悪い設備となる他、嫌気的となつた場合は臭気
の発生もある、といつた欠点を有する。また、上
記(ロ)の装置では汚水中のBOD、窒素の除去は可
能であるが、リンの除去は余り期待できないし、
上記(ハ)の装置では微生物の濃度が低いために汚水
中のBOD、窒素の除去効率が悪く広大な面積を
必要とし、又リンの除去も余り期待できない、と
いうようにそれぞれ大きな欠点を有する。 However, the device described in (a) above cannot be used in wastewater.
BOD is removed by aerobic or anaerobic action by microorganisms that propagate on the roots of aquatic plants such as water hyacinth and watercress, while nitrogen and phosphorus are removed by absorption from the roots of the aquatic plants. The disadvantages are that it requires a large area, resulting in inefficient equipment, and that it also generates odor when it becomes anaerobic. In addition, although it is possible to remove BOD and nitrogen from wastewater with the device (b) above, it is not expected to remove much phosphorus.
The device (c) above has major drawbacks, such as poor removal efficiency of BOD and nitrogen in wastewater due to the low concentration of microorganisms, requiring a large area, and poor ability to remove phosphorus.
本発明は、自然流下型水路内における特殊な水
性植物（ホテイアオイ、オランダガラシ等）、微
生物（バクテリア等）及び曝気の各作用を同時に
利用し得る装置を用いることにより、上記の如き
従来装置の有する欠点を解消して、汚水中の
BOD、窒素及びリンを同一水路内で同時に効率
よく除去することができる自然流下型汚水浄化方
法を提供することを目的とするものであつて、そ
の要旨とするところは、水路内を自然流下する汚
水を浄化するに当り、(1)該水路内の水面から上部
水中には、ホテイアオイ、オランダガラシ等の水
生植物を植裁し、(2)該水路内の上記水生植物の根
より下の中間水中には、微生物の着生を容易にす
るための充てん材を充てんし、(3)該水路内の上記
充てん材が充てんされている個所より下の下部水
中には、散気管を有する曝気装置を設置してなる
浄化装置を用いることによつて、前記汚水中の
BOD、窒素、リンを同一水路内で同時に除去す
ることを特徴とする自然流下型汚水浄化方法にあ
る。 The present invention uses a device that can simultaneously utilize the effects of special aquatic plants (water hyacinth, water hyacinth, etc.), microorganisms (bacteria, etc.), and aeration in a gravity-flowing waterway. Eliminate the drawbacks and improve the quality of waste water.
The purpose is to provide a gravity flow type wastewater purification method that can efficiently remove BOD, nitrogen, and phosphorus at the same time in the same waterway, and its gist is to In purifying sewage, (1) aquatic plants such as water hyacinth and watercress are planted in the water above the water surface in the waterway, and (2) aquatic plants such as water hyacinth and watercress are planted in the water above the water surface, and (2) water plants are planted in the middle below the roots of the aquatic plants in the waterway. The water is filled with a filler to facilitate the attachment of microorganisms, and (3) an aeration device with an aeration pipe is installed in the lower water below the part of the waterway where the filler is filled. By using a purification device installed with
A gravity flow type wastewater purification method characterized by simultaneously removing BOD, nitrogen, and phosphorus in the same waterway.
以下、本発明を図面と共に詳細に説明するに、
第１図及び第２図は本発明で用いる自然流下型浄
化装置の一例であつて、夫々その一部切欠斜視図
及び縦断面図であり、又第３図及び第４図は本発
明で用いる自然流下型浄化装置の他の例であつ
て、夫々その一部切欠斜視図及び縦断面図であ
る。図中、１は水生植物（ホテイアオイ等）、１
１は水生植物の根、２は充てん材、３は散気管、
４は空気、５は気泡、６は架台、７は自然流下型
水路内の水面、８はその水生植物の根より下の中
間水中、９はその充てん材より下の下部水中、１
０はその水底をそれぞれ示す。 Hereinafter, the present invention will be explained in detail with reference to the drawings.
FIGS. 1 and 2 are an example of a gravity flow purification device used in the present invention, and are a partially cutaway perspective view and a vertical cross-sectional view, respectively, and FIGS. 3 and 4 are examples of a gravity flow purification device used in the present invention. FIGS. 2A and 2B are a partially cutaway perspective view and a vertical cross-sectional view, respectively, of other examples of the gravity flow purification device. In the diagram, 1 is an aquatic plant (water hyacinth, etc.);
1 is the roots of aquatic plants, 2 is the filling material, 3 is the air diffuser,
4 is air, 5 is air bubbles, 6 is a pedestal, 7 is the water surface in a gravity channel, 8 is intermediate water below the roots of the aquatic plant, 9 is lower water below the filler, 1
0 indicates the bottom of the water.
すなわち、本発明で用いる浄化装置は、
(a) 第１図〜第４図に示すように、自然流下型水
路内の水面７から上部水中には、例えばホテイ
アオイ、オランダガラシ等の水生植物１を植裁
し、
(b) 該水路内の上記水生植物の根１１より下の中
間水中８には、微生物の着生（付着生成）を容
易にするための充てん材２を、自然流下の方向
にて第１図〜第２図に示すように間隔なしに又
は第３図〜第４図に示すように適宜間隔をあけ
て充てんし、
(c) 該水路内における、第１図〜第２図に示す如
く充てん材より下の下部水中９に又は第３図〜
第４図に示す如く充てん材の間に適宜あけられ
た間隔の下に当る充てん材より下の下部水中９
に散気管３を設け、空気等で曝気する曝気装置
を設置してなるものである。 That is, the purification device used in the present invention has the following features: (a) As shown in FIGS. 1 to 4, aquatic plants 1 such as water hyacinth and watercress are placed in the water above the water surface 7 in the gravity flow channel. (b) In the intermediate water 8 below the roots 11 of the aquatic plants in the waterway, a filler 2 is placed in the direction of natural flow to facilitate the attachment (adhesion formation) of microorganisms. 1 to 2, or at appropriate intervals as shown in FIGS. 3 to 4; In the lower water 9 below the filler as shown in Figure 3~
As shown in Figure 4, the lower part of the water 9 below the filler, which corresponds to the space appropriately spaced between the fillers.
A diffuser pipe 3 is installed in the tank, and an aeration device for aerating with air or the like is installed.
本発明の方法は、かかる構成の浄化装置を用
い、次のようにして汚水の浄化を行うものであ
る。すなわち、
() 自然流下水路内の中間水中８における充て
ん材２を充てんした部分のうち、主として曝気
領域の好気ゾーン（曝気ゾーン）近辺において
は、充てん材の表面に密度高く着生（付着生
成）し汚水中のBODを酸化する好気性菌とア
ンモニア性窒素を酸化する硝化菌等の下記式(1)
と(2)：
で表わされる働きにより、BODの除去及びア
ンモニア性窒素の硝酸化を効率よく行う。ま
た、充てん材２を充てんした部分のうち、主と
して上記曝気ゾーンから離れたところに局部的
に発生する弱嫌気ゾーンにおいては、充てん材
の表面に密度高く着生する脱窒菌の下記式(3)：
で表わされる働きにより、前示式(2)により生成
した硝酸性窒素を還元し、窒素ガスとして脱窒
素を行う。 The method of the present invention uses a purification apparatus having such a configuration to purify wastewater in the following manner. In other words, () Among the parts filled with the filler 2 in the intermediate water 8 in the gravity drainage waterway, there is a high density of epiphytes (adherent formation) on the surface of the filler mainly in the vicinity of the aerobic zone (aeration zone) of the aeration area. ) and the following formula (1) for aerobic bacteria that oxidizes BOD in wastewater and nitrifying bacteria that oxidizes ammonia nitrogen.
and (2): Due to the function expressed by , it efficiently removes BOD and nitrates ammonia nitrogen. In addition, in the weakly anaerobic zone that occurs locally in the area filled with the filler 2, mainly away from the aeration zone, the following formula (3) of denitrifying bacteria that grows densely on the surface of the filler is observed. : By the action expressed by the formula (2), the nitrate nitrogen generated by the above formula (2) is reduced and denitrification is performed as nitrogen gas.
() 一方、水面７に浮遊する水生植物１は、上
部水中にあるその根１１によつて水中の窒素、
リンを吸収する。ところが、通常、水生植物１
が水面７の全面を覆うようになると、水面から
の酸素の供給が殆どなくなり、水路内を自然流
下する水中の溶存酸素が水路内の微生物活動等
によつて消費され、水路内が嫌気化する。嫌気
状態では、当然のことながら、水生植物１の生
育に障害を引き起こし、そのため水生植物の根
１１の吸収効率が低下するなどの不都合を生じ
る。次の（）で述べる曝気装置を設置し水路
内の下部水中９に設けた散気管３により曝気す
ることは、水中を常に好気的に維持し、水生植
物の吸収効率を良好な状態に維持して、上記の
如き不都合を防止するものである。() On the other hand, the aquatic plants 1 floating on the water surface 7 remove nitrogen from the water by their roots 11 in the upper water.
absorbs phosphorus. However, usually aquatic plants 1
When the water comes to cover the entire surface of the water surface 7, the supply of oxygen from the water surface almost disappears, and the dissolved oxygen in the water that naturally flows down the waterway is consumed by microbial activity in the waterway, and the waterway becomes anaerobic. . Naturally, the anaerobic state causes problems in the growth of the aquatic plants 1, resulting in disadvantages such as a decrease in the absorption efficiency of the roots 11 of the aquatic plants. Installing the aeration device described in the following () and aerating through the aeration pipe 3 installed in the lower water 9 in the waterway will keep the water aerobic at all times and maintain the absorption efficiency of aquatic plants in a good state. This is to prevent the above-mentioned inconvenience.
() 曝気装置を設置し下部水中９の散気管３に
より曝気することによつて、上述の不都合を防
止する作用の他、下記のような多くの作用効果
を発揮する。() By installing an aeration device and aerating through the aeration pipe 3 in the lower water 9, in addition to the effect of preventing the above-mentioned inconveniences, the following many effects are exhibited.
() 汚水中のBODの微生物による酸化分解及
びアンモニア性窒素の硝酸化において必要な
好気的雰囲気の維持が効率よく行われる作用
をする。 () It functions to efficiently maintain the aerobic atmosphere necessary for oxidative decomposition of BOD in wastewater by microorganisms and nitrification of ammonia nitrogen.
() 水路内の流下水が低流速（例えば１ｍ／
分以下）の場合、流下水と中間水中８の充て
ん材２の表面の微生物膜との接触効率を向上
させ、流下水の水深方向の不均一性を改善す
るための撹拌、混合作用をする。 () The flow rate of sewage in the waterway is low (e.g. 1m/
(minutes or less), a stirring and mixing action is performed to improve the contact efficiency between the flowing water and the microbial film on the surface of the filler 2 in the intermediate water 8, and to improve the non-uniformity of the flowing water in the water depth direction.
() 水路内を好気的に維持することにより、
水中に生息する生物の種類、数においては、
多くのバクテリア、原生動物、後生動物をは
じめとして大型の生物（魚類や昆虫類）等も
発生し、広範囲の生物のピラミツドを形成
し、安定した生物処理の環境を形成する作
用、ひいては水中自然界の食物連鎖を形成し
て、余剰汚泥の発生量を低減せしめるばかり
でなく、臭気等の発生を抑制する作用をす
る。 () By maintaining the inside of the waterway aerobically,
Regarding the types and numbers of organisms that live in water,
Many bacteria, protozoa, metazoa, and other large organisms (fish and insects) also occur, forming pyramids of a wide range of organisms, creating a stable biological treatment environment, and ultimately improving the underwater natural world. It not only forms a food chain and reduces the amount of surplus sludge generated, but also works to suppress the generation of odors.
() 中間水中８に充てんした充てん材の目詰
りを防止する作用をする。 () It acts to prevent clogging of the filler filled in the intermediate water 8.
しかして、上記の中間水中８に充てんする充
てん材２としては、硬質ポリ塩化ビニル等のプ
ラスチツクス製波板の平行板型構造のものが、
汚水との接触効率が良好で浄化効率が高い、目
詰りがし難い、施工性が良い等の優れた特徴を
有し、上述の本発明の作用効果を顕著に奏し得
る点から好ましい。特に、プラスチツクス製の
表面に波形の凹凸模様を有する板を一定間隔で
平行に複数枚重ね合せ、比表面積30〜200m2／
m3、空間率95〜99％程度になるように構成した
ものが、前示式(1)、(2)及び(3)で表わされる好気
性菌、硝化菌及び脱窒菌の各働きにより、効率
のよい安定したBODの酸化除去、アンモニア
性窒素の酸化による硝化及び生成した硝酸性窒
素を還元して除去する脱窒の各処理を行うのに
適していて好ましい。すなわち、30m2／m3以下
では上記の各処理に関与する生物膜面積が不十
分で処理効率が悪くなり、200m2／m3以上では
生物膜面積は十分であるが、充てん材がその構
造上、生物膜の付着形成によつて水の流れを妨
げる恐れがあり、いずれも安定した上記の各処
理を行うには問題があつて好ましくない。これ
以外のひも状、網状、筒状、マツト状等の構造
物も、上述の本発明の作用効果を発揮し得るも
のであれば、使用可能である。 Therefore, the filler 2 to be filled into the intermediate water 8 is one having a parallel plate structure made of corrugated plastic such as hard polyvinyl chloride.
It is preferable because it has excellent characteristics such as good contact efficiency with wastewater, high purification efficiency, resistance to clogging, and good workability, and can significantly exhibit the effects of the present invention described above. In particular, multiple boards made of plastic with a corrugated pattern on their surfaces are stacked parallel to each other at regular intervals to create a surface with a specific surface area of 30 to 200 m 2 /
m 3 and the space ratio is about 95 to 99%, due to the actions of aerobic bacteria, nitrifying bacteria, and denitrifying bacteria expressed by the above formulas (1), (2), and (3), It is suitable and preferable for efficient and stable oxidation removal of BOD, nitrification by oxidation of ammonia nitrogen, and denitrification treatment by reducing and removing generated nitrate nitrogen. In other words, if the biofilm area is less than 30m 2 /m 3 , the biofilm area involved in each of the above treatments is insufficient, resulting in poor treatment efficiency, and if it is 200m 2 /m 3 or more, the biofilm area is sufficient, but the structure of the filler is Moreover, the formation of biofilm adhesion may impede the flow of water, and both are undesirable because they pose problems in carrying out the above-mentioned treatments in a stable manner. Other structures such as string-shaped, net-shaped, cylindrical, and mat-shaped structures can also be used as long as they can exhibit the effects of the present invention described above.
かくして、上述のような新規でコンパクトな自
然流下型浄化装置を用いる本発明の方法によれ
ば、同一水路内で発揮される上述の特殊な水生植
物（ホテイアオイ、オランダガラシ等）、微生物
（バクテリア等）及び曝気などによる各作用の相
乗効果によつて、汚水中のBOD、窒素及びリン
を同一水路内で同時に効率よく除去できる、とい
う省資源、省エネルギー型の従来になく顕著な効
果を奏することができる。 Thus, according to the method of the present invention using the novel and compact gravity purification device as described above, the above-mentioned special aquatic plants (water hyacinth, water hyacinth, etc.) and microorganisms (bacteria, etc.) that are produced in the same waterway can be ) and aeration, etc., BOD, nitrogen, and phosphorus in wastewater can be efficiently removed at the same time in the same waterway, which is an unprecedented resource- and energy-saving effect. can.
第１図及び第２図は本発明で用いる自然流下型
浄化装置の一例であつて、夫々その一部切欠斜視
図及び縦断面図を示し、第３図及び第４図は本発
明で用いる自然流下型浄化装置の他の例であつ
て、夫々その一部切欠斜視図及び縦断面図を示
す。
１……水生植物（ホテイアオイ、オランダガラ
シ等）、１１……水生植物の根、２……充てん材、
３……散気管、４……空気、７……自然流下型水
路内の水面、８……水生植物の根より下の中間水
中、９……充てん材より下の下部水中。
FIGS. 1 and 2 are examples of a gravity flow type purification device used in the present invention, and show a partially cutaway perspective view and a vertical cross-sectional view, respectively, and FIGS. Other examples of the downstream type purification device are shown, respectively, with a partially cutaway perspective view and a vertical cross-sectional view. 1... Aquatic plants (water hyacinth, watercress, etc.), 11... Roots of aquatic plants, 2... Filling material,
3...Air diffuser, 4...Air, 7...Water surface in a gravity channel, 8...Middle water below the roots of aquatic plants, 9...Lower water below the filler.
Claims (1)
オイ、オランダガラシ等の水生植物を植栽し、 (2) 該水路内の上記水生植物の根より下の中間水
中には、微生物の着生を容易にするための充て
ん材を充てんし、 (3) 該水路内の上記充てん材が充てんされている
個所より下の下部水中には、散気管を有する曝
気装置を設置してなる浄化装置を用いることに
よつて、 前記汚水中のBOD、窒素、リンを同一水路内
で同時に除去することを特徴とする自然流下型汚
水浄化方法。[Scope of Claims] 1. To purify wastewater flowing down naturally in a waterway. (1) Aquatic plants such as water hyacinth and watercress are planted in the water above the water surface in the waterway. (2) The intermediate water below the roots of the aquatic plants is filled with a filler to facilitate the attachment of microorganisms, and (3) the lower water below the part of the waterway where the filler is filled is A gravity flow type sewage purification characterized in that BOD, nitrogen, and phosphorus in the sewage are simultaneously removed in the same waterway by using a purification device equipped with an aeration device having an aeration pipe. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59094083A JPS60238198A (en) | 1984-05-11 | 1984-05-11 | Natural flow-down type sewage purification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59094083A JPS60238198A (en) | 1984-05-11 | 1984-05-11 | Natural flow-down type sewage purification method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60238198A JPS60238198A (en) | 1985-11-27 |
| JPH0410399B2 true JPH0410399B2 (en) | 1992-02-25 |
Family
ID=14100577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59094083A Granted JPS60238198A (en) | 1984-05-11 | 1984-05-11 | Natural flow-down type sewage purification method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60238198A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5947041A (en) * | 1991-02-04 | 1999-09-07 | Licht; Louis A. | Method for using tree crops as pollutant control |
| US6250237B1 (en) | 1991-02-04 | 2001-06-26 | Louis A. Licht | Method for using tree crops as pollutant control |
| CN103704113B (en) * | 2013-12-13 | 2015-11-11 | 苏州展业环保工程有限公司 | For the ecological dam device of aquaculture Environmental capacity and restoration of the ecosystem |
| CN103979686A (en) * | 2014-06-01 | 2014-08-13 | 王祖连 | Method for purifying eutrophic water in ecological agriculture |
| CN105174467B (en) * | 2015-07-15 | 2017-09-15 | 北京市农林科学院 | A kind of main area source pollutants of decontrol sloping upland enter the method for adjoining water body |
| CN109385975A (en) * | 2018-09-03 | 2019-02-26 | 深圳地大水务工程有限公司 | A kind of compound river channel system |
-
1984
- 1984-05-11 JP JP59094083A patent/JPS60238198A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60238198A (en) | 1985-11-27 |
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