JP2006289311A - Method for treating drainage - Google Patents
Method for treating drainage Download PDFInfo
- Publication number
- JP2006289311A JP2006289311A JP2005116745A JP2005116745A JP2006289311A JP 2006289311 A JP2006289311 A JP 2006289311A JP 2005116745 A JP2005116745 A JP 2005116745A JP 2005116745 A JP2005116745 A JP 2005116745A JP 2006289311 A JP2006289311 A JP 2006289311A
- Authority
- JP
- Japan
- Prior art keywords
- wastewater
- wastewater treatment
- powder
- microorganisms
- treatment method
- 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
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000008187 granular material Substances 0.000 claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 16
- 230000005484 gravity Effects 0.000 claims abstract description 8
- 238000004065 wastewater treatment Methods 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 244000005700 microbiome Species 0.000 claims description 15
- 239000002351 wastewater Substances 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 7
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 6
- 239000003344 environmental pollutant Substances 0.000 claims description 5
- 231100000719 pollutant Toxicity 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000005909 Kieselgur Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical group [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- SHFGJEQAOUMGJM-UHFFFAOYSA-N dialuminum dipotassium disodium dioxosilane iron(3+) oxocalcium oxomagnesium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Na+].[Na+].[Al+3].[Al+3].[K+].[K+].[Fe+3].[Fe+3].O=[Mg].O=[Ca].O=[Si]=O SHFGJEQAOUMGJM-UHFFFAOYSA-N 0.000 claims description 2
- 239000010451 perlite Substances 0.000 claims description 2
- 235000019362 perlite Nutrition 0.000 claims description 2
- 238000011282 treatment Methods 0.000 abstract description 15
- 238000005469 granulation Methods 0.000 abstract description 7
- 230000003179 granulation Effects 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 description 18
- 239000010802 sludge Substances 0.000 description 13
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000001546 nitrifying effect Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241001453382 Nitrosomonadales Species 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 241000902900 cellular organisms Species 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000002699 waste material 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
本発明は、各種の生分解性を有する汚濁物質に汚染された排水の処理方法に関し、とくに、グラニュール状微生物造粒体（以下、単に「グラニュール」と呼ぶ。）を使用する排水処理に好適な方法に関する。 The present invention relates to a method for treating wastewater contaminated with various biodegradable pollutants, and particularly to wastewater treatment using granulated microbial granules (hereinafter simply referred to as “granule”). It relates to a preferred method.
近年、排水処理の分野においては微生物の生理活性を利用して排水中の汚濁物質を無害な物質に変化させて処理を行う生物処理が多用されている。一般的な生物処理法としては活性汚泥法が主流であるが、通常の活性汚泥法においては系内の微生物濃度の高濃度化が困難であり負荷を高く取ることができないため、大きな敷地面積が必要であること、生物相の管理が難しくバルキング等の処理性能悪化を生じやすいこと、大規模な沈殿設備が必要であること、余剰汚泥等の廃棄物発生量が多いことなどが問題視されてきた。これらの問題を解決する技術として、活性汚泥の固液分離を膜を用いて行う方法、スポンジや高分子担体等に微生物を付着させて処理を行う方法、微生物が自己造粒したいわゆるグラニュールを使用して処理を行う方法等が開発されてきた。中でもグラニュールを使用する方法は反応槽内に多量の微生物を保持しうるため、単位体積当たりの反応速度が速く、固液分離も容易なため注目されてきている（例えば、特許文献１、特許文献２）。
しかしながら、グラニュールを用いた処理においては、微生物のグラニュール化が非常に遅いため、初期の立ち上げ期間が通常の生物処理よりも長く必要なことが問題となっており、特にアンモニア性窒素を好気条件下で微生物によって処理する場合には、アンモニア酸化細菌および亜硝酸酸化細菌の増殖速度が非常に遅いためグラニュール化が非常に困難であり、ほとんど実用化されていない。 However, in the treatment using granules, the granulation of microorganisms is very slow, so that the initial startup period is longer than that of normal biological treatment. When treated with microorganisms under aerobic conditions, the growth rate of ammonia-oxidizing bacteria and nitrite-oxidizing bacteria is very slow, making granulation very difficult and practically not practical.
そこで本発明の課題は、微生物のグラニュール化をより効率よく短期間に行わせ、グラニュールを使用した生物処理の利点を最大限に発揮させ、結果として低コストでの排水処理を可能にする方法を提供することにある。 Accordingly, the object of the present invention is to make the granulation of microorganisms more efficient in a short period of time, to maximize the advantages of biological treatment using granules, and as a result, to enable wastewater treatment at a low cost. It is to provide a method.
上記課題を解決するために、本発明に係る排水の処理方法は、排水を直径０．５ｍｍ以下かつ比重１．０以上７．０以下の粉体を投入した容器内において微生物と共に接触させることを特徴とする方法からなる。 In order to solve the above-mentioned problems, the wastewater treatment method according to the present invention comprises bringing wastewater into contact with microorganisms in a container charged with powder having a diameter of 0.5 mm or less and a specific gravity of 1.0 or more and 7.0 or less. It consists of a characteristic method.
すなわち、特定粒径以下、かつ特定範囲の比重の流動性の良い粉体を生物反応槽内に添加してグラニュール形成の核とすることにより、グラニュールの形成期間を飛躍的に短縮し、とくにこれまで困難であった硝化菌のグラニュールを確実にかつ迅速に形成させるようにしたものである。 That is, by adding a powder with good fluidity with a specific particle size or less and a specific gravity within a specific range into the biological reaction tank to form the nucleus of granule formation, the granule formation period is dramatically shortened. In particular, nitrifying bacteria granules, which have been difficult until now, are reliably and rapidly formed.
上記本発明に係る排水の処理方法においては、粉体は水中において４ｍ／ｈｒ以上の沈降速度を有することが好ましい。 In the wastewater treatment method according to the present invention, the powder preferably has a sedimentation speed of 4 m / hr or more in water.
また、粉体表面に微生物を付着させ、微生物の生物化学的作用により排水中の汚濁物質を処理することが好ましく、これによって上述の如く、生物処理のためのグラニュールを短期間で形成させ、そのグラニュールを使用して望ましい生物処理を行うことが可能になる。 In addition, it is preferable to attach microorganisms to the powder surface and treat the pollutants in the wastewater by the biochemical action of the microorganisms, thereby forming granules for biological treatment in a short period of time as described above, The granules can be used to perform desirable biological treatments.
上記粉体としては、例えば、ケイ酸塩、土壌構成物質、活性炭、珪藻土、パーライト、酸化アルミニウム、二酸化マンガン、酸化マグネシウム、ゼオライトより選ぶことができる。 The powder can be selected from, for example, silicate, soil constituent, activated carbon, diatomaceous earth, pearlite, aluminum oxide, manganese dioxide, magnesium oxide, and zeolite.
本発明では、前述の如き特定粒径以下、かつ特定範囲の比重の流動性の良い粉体が投入され、投入した粉体を核として微生物のグラニュールが形成される。 In the present invention, a powder with good fluidity having a specific particle size or less and having a specific gravity within a specific range as described above is charged, and microbial granules are formed using the charged powder as a core.
また、本発明に係る排水の処理方法は、とくに、排水の処理を好気性条件下で行うことができる。中でも、排水が窒素を含むものからなる場合に、本発明に係る排水の処理方法はとくに好適に使用できる。 Moreover, the waste water treatment method according to the present invention can particularly perform waste water treatment under aerobic conditions. Especially, when waste water consists of what contains nitrogen, the processing method of waste water concerning the present invention can be used especially suitably.
本発明に係る排水の処理方法によれば、これまで形成が困難であった系においてもグラニュール化が可能となり、効率のよく排水の生物処理を行うことが可能になる。したがって、本発明を適用することにより、生物処理の反応槽のコンパクト化、汚泥の脱水性の向上等が可能となり、結果として低コストでの排水処理を達成することができる。 According to the wastewater treatment method of the present invention, granulation is possible even in systems that have been difficult to form so far, and biological wastewater treatment can be performed efficiently. Therefore, by applying the present invention, the biological treatment reaction tank can be made compact, the sludge dewaterability can be improved, and as a result, low-cost wastewater treatment can be achieved.
以下に、本発明について、望ましい実施の形態とともに、詳細に説明する。
本発明においては、処理対象となる汚濁物質は生物分解性を有する有機化合物および無機化合物であるが、本発明に係る方法は、特にこれまでグラニュールの形成が困難であったアンモニア性窒素の処理に対して好適に使用することができる。したがって、以下に、排水中のアンモニア性窒素を処理する場合について詳細に説明する。
Hereinafter, the present invention will be described in detail together with preferred embodiments.
In the present invention, the pollutants to be treated are organic and inorganic compounds having biodegradability, but the method according to the present invention is particularly suitable for the treatment of ammonia nitrogen, which has heretofore been difficult to form granules. Can be suitably used. Therefore, the case where ammonia nitrogen in waste water is treated will be described in detail below.
＜グラニュールの形成方法＞
硝化の場合には硝化菌の増殖に溶存酸素を必要とするため、グラニュール反応槽（容器）下部より空気もしくは酸素を供給する。装置形状に特に指定はなく、円筒状もしくは角型槽等の一般的なものが使用できるが、グラニュールを形成するためのせん断力を確保するため、グラニュールを形成する槽においては縦横比は１：１以上を確保することが望ましい。初期の立ち上げ時にはアンモニア性窒素を含有した排水を回分もしくは連続的に通水して一定期間運転することによりグラニュールを形成することができるが、槽内に直径０．５ｍｍ以下（より望ましくは０．１ｍｍ以下）、望ましくは０．０１ｍｍ以上、かつ比重１．０以上７．０以下（より望ましくは１．２以上５．０以下）の粉体を投入することによって、グラニュールの形成を促進し、立ち上げ期間を大幅に短縮することができる。
<Granule formation method>
In the case of nitrification, since dissolved oxygen is required for the growth of nitrifying bacteria, air or oxygen is supplied from the lower part of the granule reaction vessel (container). The device shape is not particularly specified, and a general one such as a cylindrical or square tank can be used, but in order to secure a shearing force for forming the granule, the aspect ratio of the tank for forming the granule is It is desirable to ensure 1: 1 or more. Granules can be formed by operating a certain period of time by continuously or continuously passing drainage containing ammoniacal nitrogen at the initial startup, but the diameter is 0.5 mm or less (more preferably 0.1 mm or less), preferably 0.01 mm or more, and a specific gravity of 1.0 or more and 7.0 or less (more preferably 1.2 or more and 5.0 or less) is added to form granules. And can significantly reduce the startup period.
また、粉体は反応槽内に適切に維持されることが必要なため、ある一定以上の沈降速度を有することが必要とされる。この沈降速度は比重、粒径等のデータからストークスの式で与えられ、必要とされる沈降速度は反応槽の形状や固−気−液分離装置（ＧＳＳとも呼ばれる。）の性能等によっても異なるが、４ｍ／ｈｒ以上の沈降速度を有している粒子を選択することが望ましい。この際、硝化菌の増殖速度は非常に小さいため、初期に下水処理場や他の装置より汚泥等を添加することによって立ち上げに要する期間をさらに短縮することができる。粉体の種類としては様々なものが使用できるが、特にケイ酸塩、土壌構成物質、活性炭、珪藻土、パーライト、酸化アルミニウム、二酸化マンガン、酸化マグネシウム、ゼオライト等を好適に使用することができる。 Further, since the powder needs to be properly maintained in the reaction vessel, it is necessary to have a settling rate of a certain level or higher. This sedimentation speed is given by Stokes' formula from data such as specific gravity and particle size, and the required sedimentation speed varies depending on the shape of the reaction tank, the performance of the solid-gas-liquid separator (also referred to as GSS), and the like. However, it is desirable to select particles having a sedimentation velocity of 4 m / hr or more. At this time, since the growth rate of nitrifying bacteria is very small, the period required for start-up can be further shortened by adding sludge and the like from the sewage treatment plant and other devices in the initial stage. Various types of powders can be used, and silicates, soil constituents, activated carbon, diatomaceous earth, perlite, aluminum oxide, manganese dioxide, magnesium oxide, zeolite, and the like can be preferably used.
立ち上げ初期にはグラニュールが十分に形成されておらず、汚泥の比重が小さいため、汚泥は系外に流出する。このような汚泥は沈殿槽等によって濃縮して反応槽内に返送することが望ましい。また、反応槽上部に十分な大きさの固−気−液分離装置（ＧＳＳ）を設置した場合には沈殿槽を省略することもできる。 At the initial stage of startup, the granules are not sufficiently formed and the sludge has a low specific gravity, so the sludge flows out of the system. Such sludge is preferably concentrated in a sedimentation tank or the like and returned to the reaction tank. Moreover, when a sufficiently large solid-gas-liquid separator (GSS) is installed at the top of the reaction tank, the precipitation tank can be omitted.
＜装置の構成＞
アンモニア性窒素を含有した排水は，通常反応装置内への負荷を安定化させるため、調整槽に一旦滞留させた後、一定流量で硝化反応槽へ送られる。排水中にアンモニア性窒素以外の有機物質や阻害物質がある場合にはあらかじめ問題のない程度まで処理を施しておくことが望ましい。また、ｐＨは中性〜弱アルカリ性で処理することが望ましいため、必要に応じて排水のｐＨを調整する。
<Device configuration>
In order to stabilize the load on the reaction apparatus, the waste water containing ammonia nitrogen is usually temporarily retained in the adjustment tank and then sent to the nitrification reaction tank at a constant flow rate. If there is an organic substance or inhibitor other than ammonia nitrogen in the waste water, it is desirable to treat it to an extent that there is no problem in advance. Moreover, since it is desirable to process by neutrality-weak alkalinity, pH of waste water is adjusted as needed.
硝化反応槽内には添加した粉体を核とする硝化菌を含むグラニュールが充填されており、硝化反応は好気性条件下で進行するため、反応槽下部から空気もしくは酸素による曝気を行う。また、アンモニア性窒素の硝化に伴いアルカリ度を消費し、ｐＨが低下するため、水酸化ナトリウム、水酸化カリウム、炭酸ナトリウム、炭酸水素ナトリウムなどのアルカリを添加する設備を設けることが望ましい。反応槽上部にはグラニュールの流出を防止するため図に示すような固−気−液分離装置を設置することが望ましい。このように硝化菌グラニュールとアンモニア性窒素を含有する排水とを接触させることにより、アンモニア性窒素を硝酸もしくは亜硝酸にまで硝化することができる。硝酸もしくは亜硝酸は必要に応じて一般的な脱窒装置を使用することによって窒素ガスにまで変化させて系外へ放出することができる。 The nitrification reaction tank is filled with granules containing nitrifying bacteria with the added powder as the core, and the nitrification reaction proceeds under aerobic conditions, so aeration with air or oxygen is performed from the lower part of the reaction tank. In addition, since alkalinity is consumed with the nitrification of ammoniacal nitrogen and the pH is lowered, it is desirable to provide equipment for adding an alkali such as sodium hydroxide, potassium hydroxide, sodium carbonate, sodium hydrogen carbonate. It is desirable to install a solid-gas-liquid separator as shown in the figure in the upper part of the reaction tank in order to prevent granule outflow. Thus, ammonia nitrogen can be nitrified to nitric acid or nitrous acid by bringing the nitrifying granules into contact with the waste water containing ammonia nitrogen. Nitric acid or nitrous acid can be discharged to the outside of the system by changing to nitrogen gas by using a general denitrification apparatus as required.
以下に本発明を用いて行った実施例を示す。なお、この実施例は本発明の範囲を限定するものではない。 Examples carried out using the present invention are shown below. Note that this example does not limit the scope of the present invention.
実施例１
内径50mm、高さ3000mm、上部にGSSを設置した反応槽を作製し、内部に下水処理場の活性汚泥および粉末活性炭をそれぞれ2000mg/Lとなるように投入した。この際、粉末活性炭は三菱化学カルゴン（株）製”ダイアホープ”００６（粒径106 μｍ以下）を使用した。本反応槽にアンモニア性窒素およびカルシウムをそれぞれ500mg/L含む排水を通水し、0.5L/minで曝気を行いながらグラニュールを作製した。なお、反応槽より流出した汚泥に関しては適宜反応槽に返送した。
Example 1
A reaction tank having an inner diameter of 50 mm, a height of 3000 mm, and a GSS installed in the upper part was prepared, and activated sludge and powdered activated carbon from a sewage treatment plant were respectively added so as to be 2000 mg / L. At this time, “Dia Hope” 006 (particle size of 106 μm or less) manufactured by Mitsubishi Chemical Calgon Co., Ltd. was used as the powdered activated carbon. Drainage containing 500 mg / L each of ammonia nitrogen and calcium was passed through this reactor, and granules were prepared while aerated at 0.5 L / min. In addition, about the sludge which flowed out from the reaction tank, it returned to the reaction tank suitably.
比較例１
実施例１と同様の条件下で粉末活性炭のみを添加しない条件で通水を行い、グラニュールの形成を観察した。
Comparative Example 1
Under the same conditions as in Example 1, water was passed under the condition that only powdered activated carbon was not added, and the formation of granules was observed.
｛結果｝
実験開始からの粉末活性炭添加によるSVI（汚泥容量指標）の変化を表１に示した。粉末活性炭添加系においては初期SVIの低下およびその後のSVIの低下も顕著に確認された。また、内部汚泥の顕微鏡観察により、約一ヶ月経過後において実施例１においてはグラニュール化が確認され、二ヵ月後には約200μmのグラニュールが形成された。比較例１においては通水開始から二ヶ月間で若干SVIの低下も確認されたが、実施例１と比較してその低下は少なく、またグラニュール化も確認されなかった。
{result}
Table 1 shows the changes in SVI (sludge volume index) due to the addition of powdered activated carbon from the start of the experiment. In the powdered activated carbon addition system, the initial SVI decrease and the subsequent SVI decrease were also remarkably confirmed. Further, by microscopic observation of internal sludge, granulation was confirmed in Example 1 after about one month, and about 200 μm granules were formed after two months. In Comparative Example 1, a slight decrease in SVI was confirmed within two months from the start of water flow, but the decrease was small compared to Example 1, and no granulation was confirmed.
本発明に係る排水の処理方法は、例えば生活排水の排水処理のほか、半導体製造工程によって排出される産業排水の排水処理等、各種分野における排水処理に適用可能である。 The wastewater treatment method according to the present invention can be applied to wastewater treatment in various fields such as wastewater treatment of domestic wastewater and industrial wastewater discharged by a semiconductor manufacturing process.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005116745A JP2006289311A (en) | 2005-04-14 | 2005-04-14 | Method for treating drainage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005116745A JP2006289311A (en) | 2005-04-14 | 2005-04-14 | Method for treating drainage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2006289311A true JP2006289311A (en) | 2006-10-26 |
Family
ID=37410486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005116745A Pending JP2006289311A (en) | 2005-04-14 | 2005-04-14 | Method for treating drainage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2006289311A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006346536A (en) * | 2005-06-14 | 2006-12-28 | Japan Organo Co Ltd | Method and apparatus for treating waste water |
| JP2007136363A (en) * | 2005-11-18 | 2007-06-07 | Sumitomo Heavy Ind Ltd | Granular microbial sludge generation method |
| JP2008049283A (en) * | 2006-08-25 | 2008-03-06 | Japan Organo Co Ltd | Water treatment apparatus |
| JP2008231158A (en) * | 2007-03-16 | 2008-10-02 | Dainippon Toryo Co Ltd | Preparation method of paint |
| JP2009066505A (en) * | 2007-09-12 | 2009-04-02 | Univ Waseda | Aerobic granule formation method, water treatment method and water treatment apparatus |
| JP2010179213A (en) * | 2009-02-04 | 2010-08-19 | Eco Earth Engineering Kk | Method and facility for purifying pollutant |
| CN101891345A (en) * | 2010-07-13 | 2010-11-24 | 重庆大学 | Strengthening low-carbon source urban sewage low-oxygen synchronous denitrification and phosphorus removal sewage treatment device and method |
| CN105858873A (en) * | 2016-04-12 | 2016-08-17 | 江苏艾特克环境工程设计研究院有限公司 | Method for culturing aerobic granular sludge through high-concentration medicine wastewater |
| CN105884028A (en) * | 2016-06-17 | 2016-08-24 | 北京工业大学 | Continuous-flow urban sewage shortcut nitrification anaerobic ammonia oxidation coupling denitrifying phosphorus removal device and continuous-flow urban sewage shortcut nitrification anaerobic ammonia oxidation coupling denitrifying phosphorus removal method |
| JP2016193388A (en) * | 2015-03-31 | 2016-11-17 | オルガノ株式会社 | Dehydration method, wastewater treatment method, and wastewater treatment device |
| JP2021169062A (en) * | 2020-04-15 | 2021-10-28 | 栗田工業株式会社 | Aerobic biological membrane treatment method and apparatus |
| CN113845210A (en) * | 2021-10-09 | 2021-12-28 | 湖南三友环保科技有限公司 | Biological agent for sewage treatment and preparation method and application thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6171892A (en) * | 1984-09-17 | 1986-04-12 | Waseda Daigaku | Purification of water by three-phase fluidized bed |
| JPH0299194A (en) * | 1988-10-05 | 1990-04-11 | Ebara Infilco Co Ltd | Up-flow type biological treatment and its apparatus |
| JPH06106182A (en) * | 1992-01-21 | 1994-04-19 | Kubota Corp | Method for biological treatment of wastewater containing N-H4-N |
| JPH06114392A (en) * | 1992-10-05 | 1994-04-26 | Taiyo Sanso Co Ltd | Method for treating organic waste water and apparatus therefor |
| JP2000024687A (en) * | 1998-05-08 | 2000-01-25 | Kankyo Eng Co Ltd | Waste nitric acid treatment method |
| JP2002001389A (en) * | 2000-06-19 | 2002-01-08 | Univ Waseda | Production process of biological membrane and continuous treatment equipment for inorganic ammonate containing wastewater, using the same membrane |
| JP2002336885A (en) * | 2001-05-21 | 2002-11-26 | Kurita Water Ind Ltd | Aerobic treatment of wastewater |
| JP2003024987A (en) * | 2001-07-16 | 2003-01-28 | Kurita Water Ind Ltd | Nitrification method of ammoniacal nitrogen-containing water |
| JP2003266095A (en) * | 2002-03-14 | 2003-09-24 | Univ Waseda | Method for forming nitrified granules |
| JP2004255269A (en) * | 2003-02-25 | 2004-09-16 | Kurita Water Ind Ltd | Denitrification method and denitrification device |
| JP2004298841A (en) * | 2003-04-01 | 2004-10-28 | Kurita Water Ind Ltd | Treatment method for nitrogen-containing wastewater |
-
2005
- 2005-04-14 JP JP2005116745A patent/JP2006289311A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6171892A (en) * | 1984-09-17 | 1986-04-12 | Waseda Daigaku | Purification of water by three-phase fluidized bed |
| JPH0299194A (en) * | 1988-10-05 | 1990-04-11 | Ebara Infilco Co Ltd | Up-flow type biological treatment and its apparatus |
| JPH06106182A (en) * | 1992-01-21 | 1994-04-19 | Kubota Corp | Method for biological treatment of wastewater containing N-H4-N |
| JPH06114392A (en) * | 1992-10-05 | 1994-04-26 | Taiyo Sanso Co Ltd | Method for treating organic waste water and apparatus therefor |
| JP2000024687A (en) * | 1998-05-08 | 2000-01-25 | Kankyo Eng Co Ltd | Waste nitric acid treatment method |
| JP2002001389A (en) * | 2000-06-19 | 2002-01-08 | Univ Waseda | Production process of biological membrane and continuous treatment equipment for inorganic ammonate containing wastewater, using the same membrane |
| JP2002336885A (en) * | 2001-05-21 | 2002-11-26 | Kurita Water Ind Ltd | Aerobic treatment of wastewater |
| JP2003024987A (en) * | 2001-07-16 | 2003-01-28 | Kurita Water Ind Ltd | Nitrification method of ammoniacal nitrogen-containing water |
| JP2003266095A (en) * | 2002-03-14 | 2003-09-24 | Univ Waseda | Method for forming nitrified granules |
| JP2004255269A (en) * | 2003-02-25 | 2004-09-16 | Kurita Water Ind Ltd | Denitrification method and denitrification device |
| JP2004298841A (en) * | 2003-04-01 | 2004-10-28 | Kurita Water Ind Ltd | Treatment method for nitrogen-containing wastewater |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006346536A (en) * | 2005-06-14 | 2006-12-28 | Japan Organo Co Ltd | Method and apparatus for treating waste water |
| JP2007136363A (en) * | 2005-11-18 | 2007-06-07 | Sumitomo Heavy Ind Ltd | Granular microbial sludge generation method |
| JP2008049283A (en) * | 2006-08-25 | 2008-03-06 | Japan Organo Co Ltd | Water treatment apparatus |
| JP2008231158A (en) * | 2007-03-16 | 2008-10-02 | Dainippon Toryo Co Ltd | Preparation method of paint |
| JP2009066505A (en) * | 2007-09-12 | 2009-04-02 | Univ Waseda | Aerobic granule formation method, water treatment method and water treatment apparatus |
| JP2010179213A (en) * | 2009-02-04 | 2010-08-19 | Eco Earth Engineering Kk | Method and facility for purifying pollutant |
| CN101891345A (en) * | 2010-07-13 | 2010-11-24 | 重庆大学 | Strengthening low-carbon source urban sewage low-oxygen synchronous denitrification and phosphorus removal sewage treatment device and method |
| JP2016193388A (en) * | 2015-03-31 | 2016-11-17 | オルガノ株式会社 | Dehydration method, wastewater treatment method, and wastewater treatment device |
| CN105858873A (en) * | 2016-04-12 | 2016-08-17 | 江苏艾特克环境工程设计研究院有限公司 | Method for culturing aerobic granular sludge through high-concentration medicine wastewater |
| CN105858873B (en) * | 2016-04-12 | 2019-05-10 | 江苏艾特克环境工程设计研究院有限公司 | Cultivation method of aerobic granular sludge of high concentration pharmaceutical wastewater |
| CN105884028A (en) * | 2016-06-17 | 2016-08-24 | 北京工业大学 | Continuous-flow urban sewage shortcut nitrification anaerobic ammonia oxidation coupling denitrifying phosphorus removal device and continuous-flow urban sewage shortcut nitrification anaerobic ammonia oxidation coupling denitrifying phosphorus removal method |
| CN105884028B (en) * | 2016-06-17 | 2019-01-11 | 北京工业大学 | The apparatus and method of continuous flow municipal sewage short distance nitration Anammox coupling denitrification dephosphorization |
| JP2021169062A (en) * | 2020-04-15 | 2021-10-28 | 栗田工業株式会社 | Aerobic biological membrane treatment method and apparatus |
| JP7435196B2 (en) | 2020-04-15 | 2024-02-21 | 栗田工業株式会社 | Aerobic biofilm treatment method and device |
| CN113845210A (en) * | 2021-10-09 | 2021-12-28 | 湖南三友环保科技有限公司 | Biological agent for sewage treatment and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3350353B2 (en) | Wastewater treatment method and wastewater treatment device | |
| JP4224951B2 (en) | Denitrification method | |
| JP2005305410A (en) | Nitrogen removal method and apparatus | |
| JP2005238166A (en) | Anaerobic ammonia oxidation method | |
| Xing et al. | Treatment of antibiotic fermentation‐based pharmaceutical wastewater using anaerobic and aerobic moving bed biofilm reactors combined with ozone/hydrogen peroxide process | |
| JP4872171B2 (en) | Biological denitrification equipment | |
| TW201024231A (en) | System and method for treating waste water containing ammonia | |
| JP4925208B2 (en) | Aerobic granule formation method, water treatment method and water treatment apparatus | |
| JP2006289311A (en) | Method for treating drainage | |
| JP4915036B2 (en) | Denitrification method and denitrification apparatus | |
| JP4876343B2 (en) | Denitrification method and denitrification apparatus | |
| JP4867098B2 (en) | Biological denitrification method and apparatus | |
| JP2009136725A (en) | Ammonia-containing wastewater treatment equipment | |
| JP2012110821A (en) | Method for treatment of organic wastewater | |
| JP5055667B2 (en) | Biological denitrification method and biological denitrification apparatus | |
| Hosseini et al. | Continuous nitrifying granular sludge bioreactor: influence of aeration and ammonium loading rate | |
| JPH10263594A (en) | Removing method and device of nitrate ion in waste water | |
| JP2009186437A (en) | Radioactive nitrate waste liquid treating apparatus | |
| KR102101020B1 (en) | Nitrogen Removal Methods of Sewage Using Autotrophic microorganism immobilized in Bead | |
| JP2009000645A (en) | Ammonia nitrogen to nitrate nitrogen denitrification, simultaneous nitrogen removal, nitrogen cycle, biomass, biocatalytic oxidation filtration equipment | |
| JP2011062656A (en) | Nitrogen-containing wastewater treatment method | |
| JP3477187B2 (en) | Method and apparatus for decolorizing wastewater | |
| JP2003024988A (en) | Biological denitrification method | |
| Saeedi et al. | Denitrification of drinking water using a hybrid heterotrophic/autotrophic/BAC bioreactor | |
| Foglar et al. | Continuous-flow biological denitrification with zeolite as support for bacterial growth |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20071106 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20100512 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100525 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20101005 |