JPH038493A - Filter medium and treatment of sewage using the medium - Google Patents
Filter medium and treatment of sewage using the mediumInfo
- Publication number
- JPH038493A JPH038493A JP1143598A JP14359889A JPH038493A JP H038493 A JPH038493 A JP H038493A JP 1143598 A JP1143598 A JP 1143598A JP 14359889 A JP14359889 A JP 14359889A JP H038493 A JPH038493 A JP H038493A
- Authority
- JP
- Japan
- Prior art keywords
- sewage
- filter medium
- medium
- 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.)
- Granted
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 210000003608 fece Anatomy 0.000 claims abstract description 10
- 239000002361 compost Substances 0.000 claims abstract description 7
- 230000000813 microbial effect Effects 0.000 claims description 23
- 238000000354 decomposition reaction Methods 0.000 claims description 18
- 150000007529 inorganic bases Chemical class 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 3
- 244000144972 livestock Species 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 4
- 230000001902 propagating effect Effects 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 description 28
- 244000005700 microbiome Species 0.000 description 22
- 238000003860 storage Methods 0.000 description 11
- 239000010871 livestock manure Substances 0.000 description 6
- 239000011490 mineral wool Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 238000012851 eutrophication Methods 0.000 description 3
- 238000004065 wastewater treatment Methods 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
- 239000007864 aqueous solution Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241001453382 Nitrosomonadales Species 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000010800 human waste Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000004575 stone 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
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、例えば家畜ふん尿処理施設、農・畜産物の処
理加工施設、下水処理場、し尿処理場。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is applicable to, for example, livestock manure treatment facilities, agricultural and livestock product processing facilities, sewage treatment plants, and human waste treatment plants.
飼・肥料工場、レンダリングプラント、フィツシュミー
ル工場等から発生する汚水の排水路途中に付設して、各
施設から流れ出る汚水を浄化するようにした濾材および
その濾材を使用した汚水処理方法に関するものである。This product relates to filter media installed in the drainage channels of sewage generated from feed/fertilizer factories, rendering plants, Fitzmir factories, etc. to purify the sewage flowing out from each facility, and to sewage treatment methods using the filter media. be.
［従来の技術］
上記のような各施設から排水された汚水を浄化する方法
として、活性汚泥法、酸化溝法、酸化池法の他、生物膜
処理法が知られている。この内、生物膜処理法は微生物
膜を有する濾材に汚水を接触させて浄化を行うものであ
り、濾材に汚水を散布して浄化処理する散水濾床法、濾
材を円板状に成形して汚水内で回転させながら反応させ
て浄化する回転円板法、濾材を汚水中に浸漬させると共
に曝気を行って浄化処理する接触酸化法があるが、従来
はいずれも濾材として砕石やプラスチック製充填材を使
用し、濾材表面に自然発生した微生物膜を利用して汚水
を分解、浄化する点で共通となっている。また、この生
物膜処理法は好気性微生物群の作用を利用して汚水中の
汚染物質を分解浄化するものであり、汚水中のアンモニ
ア態窒素（ＮＨ３−Ｎ）はアンンモニア酸化細菌によっ
て、Ｎ ＨＳ−Ｎ→ＮＯオーＮ
に酸化された後、亜硝酸酸化細菌によってＮ Ｏ、−Ｎ
−Ｎ Ｏ、−Ｎ
に酸化されて硝酸態窒素に分解される。[Prior Art] In addition to the activated sludge method, oxidation ditch method, and oxidation pond method, biofilm treatment methods are known as methods for purifying wastewater discharged from the above-mentioned facilities. Among these, the biofilm treatment method purifies wastewater by bringing it into contact with a filter medium that has a microbial membrane, the trickling bed method, which purifies the wastewater by spraying it on the filter medium, and the trickling method, which purifies the wastewater by spraying the filter medium onto the filter medium, and the trickling method, which purifies the wastewater by spraying the filter medium onto the filter medium. There are two methods: the rotating disk method, in which the filter medium is purified by rotating it in waste water, and the contact oxidation method, in which the filter medium is immersed in the waste water and aerated for purification. They are common in that they decompose and purify wastewater using a naturally occurring microbial film on the surface of the filter media. In addition, this biofilm treatment method utilizes the action of aerobic microorganisms to decompose and purify pollutants in wastewater, and ammonia nitrogen (NH3-N) in wastewater is converted to NHS by ammonia-oxidizing bacteria. -N→NO
It is oxidized to -N O, -N and decomposed to nitrate nitrogen.
ところで近年、環境問題の一つとして排水による湖沼の
富栄養化がある。この富栄養化は排水中のＮ（窒素）が
主原因の１つとなるものであり、窒素含有物質を排水か
ら極力、取り除くことにより、その傾向が減少する。Incidentally, in recent years, one of the environmental problems has been the eutrophication of lakes and marshes due to drainage. One of the main causes of this eutrophication is N (nitrogen) in wastewater, and this tendency can be reduced by removing nitrogen-containing substances from wastewater as much as possible.
しかしながら従来の濾材を用いた生物膜処理法では分解
最終物質である硝酸態窒素が水溶性であるため、富栄養
化の防止対策とはなっていない。However, in the conventional biofilm treatment method using filter media, nitrate nitrogen, which is the final decomposition substance, is water-soluble, so it is not a measure to prevent eutrophication.
このため従来の処理法では、好気性微生物分解を経た汚
水をさらに、嫌気処理に供し、脱窒菌などの嫌気性微生
物の作用によって窒素ガスにまで分解して大気中へ放出
し、排水中のＮ量の減少を図っている。For this reason, in conventional treatment methods, wastewater that has undergone aerobic microbial decomposition is further subjected to anaerobic treatment, and decomposed into nitrogen gas by the action of denitrifying bacteria and other anaerobic microorganisms, which is then released into the atmosphere. We are trying to reduce the amount.
［発明が解決しようとする課題］
このように従来の生物膜処理法では、好気性微生物分解
と嫌気性微生物分解との２段階の処理を行うため、汚水
の浄化に長時間を有するばかりでなく、処理施設の規模
が拡大している。また、汚水は濾材の表面とだけ接触し
、濾材表面に生息する微生物群しか利用できないため、
効率が悪く、このため必要な処理施設の縮小に限界を生
じている。[Problems to be Solved by the Invention] As described above, in the conventional biofilm treatment method, since the treatment is performed in two stages: aerobic microbial decomposition and anaerobic microbial decomposition, it not only takes a long time to purify wastewater, but also takes a long time. , the scale of treatment facilities is expanding. In addition, wastewater comes into contact only with the surface of the filter medium, and only the microorganisms that live on the surface of the filter medium can be used.
They are inefficient and this limits the reduction in required treatment facilities.
そこで本発明は、好気性微生物分解と嫌気性微生物分解
とを同時に行うようにして、処理効率の増大、処理時間
の短縮、処理施設の縮小化を可能とした濾材を提供する
ことを目的とする。Therefore, an object of the present invention is to provide a filter medium that allows aerobic microbial decomposition and anaerobic microbial decomposition to be performed simultaneously, thereby increasing processing efficiency, shortening processing time, and downsizing processing facilities. .
また、本発明はこの濾材を用いて汚水処理を行う処理法
を提供することを目的とする。Another object of the present invention is to provide a method for treating sewage using this filter medium.
［課題を解決するための手段］
本発明の濾材は親水性無機質基材からなる繊維体又は粒
体に畜ふん又は堆廐肥等が混合されて塊状に成形されて
いることを特徴とする。[Means for Solving the Problems] The filter medium of the present invention is characterized in that it is formed into a lump by mixing animal manure, compost, etc. with fibrous bodies or granules made of a hydrophilic inorganic base material.
また、本発明の汚水処理方法は前記記載の濾材に汚水を
接触させ、濾材の表面部分で汚水の好気性微生物分解を
行い、濾材の内部部分で汚水の嫌気性微生物分解を行う
ことを特徴とする。Furthermore, the sewage treatment method of the present invention is characterized in that sewage is brought into contact with the filter medium described above, aerobic microbial decomposition of the sewage water is performed on the surface portion of the filter medium, and anaerobic microbial decomposition of the sewage water is performed on the internal portion of the filter medium. do.
本発明の濾材に使用される親水性無機質基材は従来の濾
材に使用されている砕石、プラスチック製充填材に相当
するものであり、スラグウール（鉱滓綿）、ロックウー
ル（岩綿）、ガラス繊維などの内の１種又は２種以上の
混合物を使用することができる。これら基材は繊維状で
あっても良く、あるいは粒状であっても良く、これらを
混合した状態でも良い、このような材質および形態の無
機質基材は微生物が生息する濾床となるものであるが、
親水性および高空隙性などの諸持性により、汚水処理に
好適な材料としての性質を有している。The hydrophilic inorganic base material used in the filter medium of the present invention corresponds to crushed stone and plastic fillers used in conventional filter media, and includes slag wool, rock wool, and glass. One or a mixture of two or more of the fibers and the like can be used. These base materials may be fibrous, granular, or a mixture of these materials.The inorganic base material of such a material and form serves as a filter bed in which microorganisms live. but,
Due to its properties such as hydrophilicity and high porosity, it has properties suitable as a material for wastewater treatment.
この無機質基材に畜ふん、堆廐肥等を混合し、塊状にす
ることにより濾材が成形される。畜ふん、堆厩肥等は微
生物供給源となるものであり、必要に応じてｐＨ調整を
行って、所定の塊状又は板状に成形する。その成形は例
えば直径１０〜８０ｍｍ程度のボール状、枡形状であっ
ても良く、円板形状であっても良く、適用される微生物
膜処理法に合わせて適宜、選択することができる。A filter medium is formed by mixing livestock dung, compost, etc. with this inorganic base material and forming it into a lump. Livestock manure, composted manure, etc. serve as a source of microorganisms, and the pH is adjusted as necessary, and the material is formed into a predetermined lump or plate shape. The shape may be, for example, a ball shape, a square shape, or a disk shape with a diameter of about 10 to 80 mm, and can be appropriately selected according to the applied microbial membrane treatment method.
本発明の汚水処理方法は、このような濾材を用いて行う
ものであり、散水濾床法１回転円板法。The sewage treatment method of the present invention is carried out using such a filter medium, and includes a trickling filter method and a one-rotation disk method.
接触酸化法のいずれに対しても適用することができる。It can be applied to any catalytic oxidation method.
この汚水処理方法は濾材に汚水を接触させて浄化処理を
行う、濾材に使用されている畜ふん、堆廐肥等には好気
性微生物および嫌気性微生物の双方が含まれており、濾
材表面および表面近くの内部では好気性微生物が繁殖し
易く、その活動が活発になっている。一方、濾材の内部
は嫌気的となっており、嫌気性微生物が繁殖して、その
活動が活発となっている。このような状態の濾材に汚水
が接触すると、汚水は濾材の表面に沿って流れると共に
、濾材が親水性のため一部分が濾材内に浸透する。そし
て表面を流れる汚水は濾材の表面部分で好気性微生物分
解されて浄化される。This sewage treatment method purifies the sewage by bringing it into contact with the filter medium.The livestock manure, compost, etc. used in the filter medium contain both aerobic and anaerobic microorganisms, and the surface of the filter medium and Aerobic microorganisms are easy to breed inside near the surface, and their activities are active. On the other hand, the inside of the filter medium is anaerobic, and anaerobic microorganisms breed and become active. When dirty water comes into contact with the filter medium in such a state, the dirty water flows along the surface of the filter medium, and because the filter medium is hydrophilic, a portion of the dirty water permeates into the filter medium. The wastewater flowing on the surface is purified by aerobic microbial decomposition on the surface of the filter medium.
一方、濾材の内部に浸透した汚水は濾材内部の嫌気性微
生物により嫌気性分解されて浄化される。On the other hand, the sewage that has penetrated into the filter medium is anaerobically decomposed and purified by anaerobic microorganisms inside the filter medium.
このように浄化された汚水は濾材を次々に流下していく
間に好気性分解、嫌気性分解が繰り返されて浄化が行わ
れる。従って、単一の濾材を使用し、単一の操作を行う
だけで好気性微生物分解および嫌気性微生物分解を行う
ことができるため、浄化効率が向上すると共に、処理槽
が少なくなり、処理施設を縮小化することができる。The thus purified wastewater is purified by repeating aerobic decomposition and anaerobic decomposition while flowing down the filter media one after another. Therefore, aerobic microbial decomposition and anaerobic microbial decomposition can be performed using a single filter medium and a single operation, improving purification efficiency, reducing the number of treatment tanks, and reducing the need for treatment facilities. Can be downsized.
［作用］
本発明の濾材は表面部分で好気性微生物が繁殖し、内部
部分で嫌気性微生物が繁殖しており、好気性処理能力お
よび嫌気性処理能力の双方を有している。[Function] The filter medium of the present invention has aerobic microorganisms propagating on the surface portion and anaerobic microorganisms propagating on the internal portion, and has both aerobic processing ability and anaerobic processing ability.
また、本発明の汚水処理方法では、濾材の表面部分で汚
水の好気性微生物分解を行い、内部部分で汚水の嫌気性
微生物分解を行い、単一の接触操作で好気性および嫌気
性の双方の浄化を行うようになっている。In addition, in the wastewater treatment method of the present invention, aerobic microbial decomposition of wastewater is performed on the surface part of the filter medium, and anaerobic microbial decomposition of wastewater is performed on the internal part, and both aerobic and anaerobic decomposition is performed in a single contact operation. It is designed to perform purification.
［実施例］
以下、本発明を実施例により具体的に説明するが、本発
明はこの実施例に限定されるものではない。[Examples] Hereinafter, the present invention will be explained in detail with reference to Examples, but the present invention is not limited to these Examples.
親水性無機質基材としてロックウールを使用し、このロ
ックウールに畜ふんおよび適量の水を混合し、造粒機に
よって直径１０〜８０ｍｍの粒状の濾材を作成した。第
１表は上記畜ふんおよびこの濾材に生息している微生物
を培養した後、分析した結果を示し、原料中の好気性微
生物（アンモニア酸化細菌、亜硝酸酸化細菌）および嫌
気性微生物（脱窒細菌）の双方が濾材に良好に保持され
ている。Rock wool was used as a hydrophilic inorganic base material, and livestock dung and an appropriate amount of water were mixed with this rock wool, and a granular filter medium having a diameter of 10 to 80 mm was prepared using a granulator. Table 1 shows the results of culturing and analyzing the microorganisms living in the livestock dung and filter media. bacteria) are well retained on the filter media.
また、造粒した粒状ロックウールの集合体に畜ふん等の
水溶液を散布するか、または上記粒状ロックウールを上
記水溶液に浸漬することによっても濾材を作成すること
ができる。この場合必要ならば散布あるいは浸漬後、短
期間の培養期間を設定して微生物の培養を図る。このよ
うにして得られた濾材にも前記したと同様に好気性微生
物及び嫌気性微生物の双方が良好に保持される。Further, the filter medium can also be prepared by spraying an aqueous solution of animal dung or the like onto an aggregate of granulated rock wool, or by immersing the granular rock wool in the aqueous solution. In this case, if necessary, after spraying or immersion, a short cultivation period is set to cultivate the microorganisms. The filter medium thus obtained also retains both aerobic microorganisms and anaerobic microorganisms well, as described above.
（以下余白） 第１表 （注）細菌数は１００ｇ当たりの生菌数である。(Margin below) Table 1 (Note) The number of bacteria is the number of viable bacteria per 100g.
次に、この濾材を第１図に示す汚水処理装置内に充填し
濾材の集合体からなる濾床１を形成して、散水濾床法に
より汚水の浄化を行った。第１図において、ｌは散水濾
床、２は汚水散布装置、３は送風機、４は汚水散布用ポ
ンプ、５は汚水注入用ポンプ、６は汚水流入溝、７は汚
水貯留槽、８は貯留槽、９はバルブである。Next, this filter medium was filled into the sewage treatment apparatus shown in FIG. 1 to form a filter bed 1 consisting of an aggregate of filter mediums, and sewage was purified by a trickling filter method. In Fig. 1, l is a trickling filter, 2 is a sewage distribution device, 3 is a blower, 4 is a sewage distribution pump, 5 is a sewage injection pump, 6 is a sewage inflow groove, 7 is a sewage storage tank, and 8 is a storage tank. The tank and 9 are valves.
以下、汚水処理の操作を説明する。The operation of wastewater treatment will be explained below.
まず、固液分離機または砂濾床等で固液分離を行った汚
水を、汚水流入溝６から汚水貯留槽７に貯留する。そし
て毎日の一定時刻に別途設けた貯溜槽８に毎日処理すべ
き量だけ汚水注入用ポンプ５で送り込む、その後、汚水
散布用ポンプ４で汲み上げて汚水散布装置２を通って散
水濾床１の上部表面に均一に散布する。First, wastewater that has been subjected to solid-liquid separation using a solid-liquid separator or a sand filter bed is stored in a wastewater storage tank 7 from the wastewater inflow groove 6 . Then, at a certain time every day, the sewage injection pump 5 pumps the amount of sewage to be treated each day into a separately provided storage tank 8. Thereafter, the sewage is pumped up by the sewage distribution pump 4, passes through the sewage distribution device 2, and passes through the top of the trickling filter bed 1. Spread evenly over the surface.
そして濾材を通過した処理水を再び貯溜槽８に戻し、再
度繰り返し汚水散布用ポンプ４と汚水散布装置２とで濾
床１へ散布して同様に浄化する。The treated water that has passed through the filter medium is returned to the storage tank 8, and is repeatedly sprayed onto the filter bed 1 by the sewage dispersion pump 4 and the sewage dispersion device 2 for purification in the same manner.
一定期間繰返し処理すると貯溜槽８中に浄化された水が
貯溜するようになり、この状態を確認してバルブ９を開
放して処理水を河川などに放流する。そして一定量放流
後バルブ９を閉にし、貯溜槽８へ汚水貯溜槽７から新た
に汚水を毎日処理すべき量だけ汚水注入用ポンプ５で送
り込み、同様に浄化処理する。なお、濾材表面微生物膜
が剥離し、貯溜槽８に溜まった汚泥は適宜、別途引き抜
き処理するものである。After repeated treatment for a certain period of time, purified water will be stored in the storage tank 8, and after confirming this state, the valve 9 will be opened and the treated water will be discharged into a river or the like. After discharging a certain amount, the valve 9 is closed, and a new amount of sewage to be treated each day is fed into the storage tank 8 from the sewage storage tank 7 using the sewage injection pump 5, and similarly purified. It should be noted that the sludge accumulated in the storage tank 8 due to the exfoliation of the microbial film on the surface of the filter medium is separately extracted and treated as appropriate.
なお、濾材中への好気性微生物の繁殖・活動に必要な酸
素の供給は、通常自然の空気の流入により行うものとし
て濾材堆積下部にその流入口を設け、流入空気の自然上
昇によるものであるが、その供給酸素量が不足する虞が
ある場合は送風機３で強制的に濾材中へ通気するもので
ある。The supply of oxygen necessary for the propagation and activity of aerobic microorganisms into the filter medium is normally achieved through the inflow of natural air, so an inlet is provided at the bottom of the filter medium pile, and the inflow air rises naturally. However, if there is a risk that the amount of oxygen supplied is insufficient, the blower 3 is used to forcibly ventilate the filter medium.
第２図は上記散水濾床ｌ内に充填、堆積された個々の濾
材１５と汚水１１との接触過程を示し、濾材１５の表面
部分は好気性微生物群生息域１４となっている一方、内
部部分は嫌気性微生物群生息域１３となっている。散布
された汚水は濾材１５の表面を流れるとともに、汚水の
流れ１１で示したように濾材１５が親水性のものである
ので一部は濾材１５内に浸透する。そして表面を流れた
汚水は濾材１５表面及び濾材１５内の表面付近、すなわ
ち好気性微生物群生息域１４で繁殖・活動するそれらの
生物群の働きにより好気分解され浄化される。一方濾材
内部の嫌気性微生物群生息域１３まで浸透した汚水は、
そこで繁殖・活動する生物群の働きにより嫌気分解され
浄化される。そして浄化された処理水は処理水の流れ１
２で示したように次々と流下していく間に濾材中に繁殖
・活動する好気性微生物群・嫌気性微生物群の働きで更
に浄化される。FIG. 2 shows the contact process between the individual filter media 15 filled and deposited in the trickling filter bed 1 and the wastewater 11. The surface part of the filter media 15 serves as an aerobic microorganism habitat 14, while the interior The area is designated as anaerobic microbial community habitat 13. The sprayed wastewater flows on the surface of the filter medium 15, and a portion of the wastewater permeates into the filter medium 15 because the filter medium 15 is hydrophilic, as shown by the flow of wastewater 11. Then, the wastewater flowing on the surface is aerobically decomposed and purified by the action of the organisms that breed and work on the surface of the filter medium 15 and near the surface within the filter medium 15, that is, in the aerobic microbial community habitat 14. On the other hand, the wastewater that has penetrated into the anaerobic microorganism habitat area 13 inside the filter media,
It is anaerobically decomposed and purified by the action of the organisms that breed and work there. The purified treated water is treated water stream 1.
As shown in 2, as the filter material flows down one after another, it is further purified by the action of aerobic microorganisms and anaerobic microorganisms that breed and become active in the filter medium.
下記第２表は第１図に示す汚水処理装置を使用した本実
施例の汚水処理の結果を従来の濾材を使用した結果と比
較したものである。Table 2 below compares the results of the sewage treatment of this example using the sewage treatment apparatus shown in FIG. 1 with the results using a conventional filter medium.
（以下余白）
第２表
（ｐｐｍ）
［発明の効果］
以上説明したように本発明の濾材によれば、親水性無機
質基材に畜ふん、堆廐肥等を混合するため、製造が容易
で安価に製作できるばかりでなく、好気性微生物及び嫌
気性微生物の双方の微生物活性が高いものとなる。(Margin below) Table 2 (ppm) [Effects of the Invention] As explained above, the filter medium of the present invention is easy to manufacture because animal manure, compost, etc. are mixed into the hydrophilic inorganic base material. Not only can it be produced at low cost, but it also has high microbial activity for both aerobic microorganisms and anaerobic microorganisms.
また本発明の汚水処理方法は、この濾材を使用して好気
性処理と嫌気性処理とを組み合わせて浄化効率の向上を
図るため、従来の方式と比べて濾材単位体積当りの生息
微生物の増加により、必要処理装置規模を格段に縮小で
きる。そして好気性処理と嫌気性処理とを同時に並行し
て行うことができるため、別途嫌気性処理装置を設ける
必要はなく施設費、運転費や必要処理施設面積の低減が
図れる効果がある。In addition, the sewage treatment method of the present invention uses this filter medium to combine aerobic treatment and anaerobic treatment to improve purification efficiency. , the scale of required processing equipment can be significantly reduced. Since aerobic treatment and anaerobic treatment can be performed simultaneously and in parallel, there is no need to provide a separate anaerobic treatment device, which has the effect of reducing facility costs, operating costs, and required treatment facility area.
第１図は本発明に使用される汚水処理装置の一例の概要
図、第２図は濾材と汚水との接触状態を示す概要図であ
る。
１・・・散水濾床、２・・・汚水散布装置、・・・送風
機、４・・・汚水散布用ポンプ、・・・汚水注入用ポン
プ、６・・・汚水流入溝、・・・汚水貯溜槽、８・・・
貯溜槽、９・・・バルブ、１・・・汚水の流れ、１２・
・・処理水の流れ、３・・・嫌気性微生物群生息域、
４・・・好気性微生物群主１、域、１５・・・濾材。FIG. 1 is a schematic diagram of an example of a sewage treatment apparatus used in the present invention, and FIG. 2 is a schematic diagram showing a state of contact between a filter medium and sewage. 1...Trickling filter bed, 2...Sewage dispersion device,...Blower, 4...Sewage dispersion pump,...Sewage injection pump, 6...Sewage inlet groove,...Sewage Storage tank, 8...
Storage tank, 9... Valve, 1... Sewage flow, 12.
...Flow of treated water, 3.Anaerobic microbial community habitat, 4.Aerobic microbial community main area 1, 15.Filtering material.
Claims (2)
ん又は堆廐肥等が混合されて塊状又は板状に成形されて
いることを特徴とする濾材。(1) A filter medium characterized in that it is formed into a block or a plate by mixing animal dung, compost, etc. with fibrous or granular bodies made of a hydrophilic inorganic base material.
分で汚水の好気性微生物分解を行い、濾材の内部部分で
汚水の嫌気性微生物分解を行うことを特徴とする汚水の
処理方法。(2) A method for treating sewage, which comprises bringing sewage into contact with the filter medium described above, performing aerobic microbial decomposition of the sewage on the surface portion of the filter medium, and performing anaerobic microbial decomposition of the sewage water on the internal portion of the filter medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14359889A JPH0651193B2 (en) | 1989-06-06 | 1989-06-06 | Filter material and method for treating sewage using the filter material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14359889A JPH0651193B2 (en) | 1989-06-06 | 1989-06-06 | Filter material and method for treating sewage using the filter material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH038493A true JPH038493A (en) | 1991-01-16 |
| JPH0651193B2 JPH0651193B2 (en) | 1994-07-06 |
Family
ID=15342447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14359889A Expired - Fee Related JPH0651193B2 (en) | 1989-06-06 | 1989-06-06 | Filter material and method for treating sewage using the filter material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0651193B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001044128A1 (en) * | 1999-12-17 | 2001-06-21 | Roland Graf | Filter arrangement for aquariums biotopes swimming pools or similar and for sewage pre-treatment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5681185A (en) * | 1979-12-05 | 1981-07-02 | Tadashi Niimi | Sewage decontamination apparatus using hollow float |
| JPS6079595A (en) * | 1983-10-07 | 1985-05-07 | Hitachi Ltd | Semiconductor integrated circuit device |
| JPS6211637A (en) * | 1985-07-10 | 1987-01-20 | 大日本印刷株式会社 | Laminated sheet |
-
1989
- 1989-06-06 JP JP14359889A patent/JPH0651193B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5681185A (en) * | 1979-12-05 | 1981-07-02 | Tadashi Niimi | Sewage decontamination apparatus using hollow float |
| JPS6079595A (en) * | 1983-10-07 | 1985-05-07 | Hitachi Ltd | Semiconductor integrated circuit device |
| JPS6211637A (en) * | 1985-07-10 | 1987-01-20 | 大日本印刷株式会社 | Laminated sheet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001044128A1 (en) * | 1999-12-17 | 2001-06-21 | Roland Graf | Filter arrangement for aquariums biotopes swimming pools or similar and for sewage pre-treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0651193B2 (en) | 1994-07-06 |
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