JPH03254895A - Gel-reinforced self-granulated sludge - Google Patents
Gel-reinforced self-granulated sludgeInfo
- Publication number
- JPH03254895A JPH03254895A JP2051284A JP5128490A JPH03254895A JP H03254895 A JPH03254895 A JP H03254895A JP 2051284 A JP2051284 A JP 2051284A JP 5128490 A JP5128490 A JP 5128490A JP H03254895 A JPH03254895 A JP H03254895A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- self
- gel
- granulated sludge
- granulated
- 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
- 239000010802 sludge Substances 0.000 title claims abstract description 72
- 229920000642 polymer Polymers 0.000 claims abstract description 22
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 4
- 244000005700 microbiome Species 0.000 claims description 11
- 239000000499 gel Substances 0.000 abstract description 16
- 239000007864 aqueous solution Substances 0.000 abstract description 13
- 230000001580 bacterial effect Effects 0.000 abstract description 10
- 238000004062 sedimentation Methods 0.000 abstract description 10
- 230000035699 permeability Effects 0.000 abstract description 9
- 239000000758 substrate Substances 0.000 abstract description 9
- 239000000126 substance Substances 0.000 abstract description 7
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 abstract description 6
- 229940072056 alginate Drugs 0.000 abstract description 6
- 235000010443 alginic acid Nutrition 0.000 abstract description 6
- 229920000615 alginic acid Polymers 0.000 abstract description 6
- 241000894006 Bacteria Species 0.000 abstract description 4
- 229920001817 Agar Polymers 0.000 abstract description 2
- 229920002101 Chitin Polymers 0.000 abstract description 2
- 229920001661 Chitosan Polymers 0.000 abstract description 2
- 239000008272 agar Substances 0.000 abstract description 2
- 235000010419 agar Nutrition 0.000 abstract description 2
- 229920001525 carrageenan Polymers 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 17
- 238000004065 wastewater treatment Methods 0.000 description 7
- 239000008187 granular material Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 3
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000000661 sodium alginate Substances 0.000 description 2
- 235000010413 sodium alginate Nutrition 0.000 description 2
- 229940005550 sodium alginate Drugs 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 229940023476 agar Drugs 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000000679 carrageenan Substances 0.000 description 1
- 235000010418 carrageenan Nutrition 0.000 description 1
- 229940113118 carrageenan Drugs 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 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
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は自己造粒汚泥、特にその補強機構の改良に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to self-granulating sludge, particularly to improvements in its reinforcing mechanism.
［従来の技術］
従来より排水中の有機物を除去するため微生物により有
機物の消化、分解を行なう活性汚泥法が広く用いられて
いる。[Prior Art] The activated sludge method, which uses microorganisms to digest and decompose organic matter, has been widely used to remove organic matter from wastewater.
ここで、前記微生物による消化を行なう段階では、活性
汚泥を排水中に分散させ接触面積を太きくすることが必
要である。しかしながら、処理水を放流する段階では活
性汚泥を沈降させなければならず、従来においても活性
汚泥の沈降性改良のため各種改良がなされてきた。Here, in the step of performing the digestion using the microorganisms, it is necessary to disperse the activated sludge in the waste water to increase the contact area. However, at the stage of discharging treated water, activated sludge must be allowed to settle, and various improvements have been made in the past to improve the settling properties of activated sludge.
活性汚泥の沈降性改良の一手段として微生物の包括固定
化法が挙げられ、この微生物包括固定化法では、まず微
生物を高分子物質水溶液に分散、混合させた後、それぞ
れの高分子物質に応じた方法でゲル化させていた。One method for improving the sedimentation properties of activated sludge is the comprehensive immobilization of microorganisms. In this microorganism comprehensive immobilization method, microorganisms are first dispersed and mixed in an aqueous solution of a polymeric substance, and then the microorganisms are dispersed and mixed in an aqueous solution of a polymeric substance. It was made into a gel using a different method.
一方微生物自身にも凝集機能や集塊機能が備っているの
ものがあり、この凝集、集塊機能を利用して自己造粒汚
泥を生成させ、排水処理に使用することもある。On the other hand, some microorganisms themselves have coagulation and agglomeration functions, and these coagulation and agglomeration functions are used to generate self-granulating sludge, which is sometimes used for wastewater treatment.
こうした自己造粒汚泥には、活性汚泥法のフロックや、
上昇流嫌気性スラッジブランケット法（ＵＡＳＢ法）の
汚泥塊等がある。These self-granulating sludges include activated sludge method flocs,
There are sludge lumps from the upflow anaerobic sludge blanket method (UASB method).
［発明が解決しようとする課題］
しかしながら、前記ゲル化した微生物を含む高分子ゲル
は、もともと分散していた汚泥を単に包括するだけであ
る。このため、一般に菌体濃度が低く、排水処理の効果
を上げるには、高分子ゲル内の菌体濃度を高める必要が
あり、汚泥の濃縮操作が行なわれる。[Problems to be Solved by the Invention] However, the gelled microorganism-containing polymer gel simply encloses the originally dispersed sludge. For this reason, the bacterial cell concentration is generally low, and in order to increase the effectiveness of wastewater treatment, it is necessary to increase the bacterial cell concentration within the polymer gel, and thus a sludge concentration operation is performed.
さらに、沈降性の悪い菌体の場合には、濾過や遠心分離
が行なわれる。Furthermore, in the case of bacterial cells that have poor sedimentation properties, filtration or centrifugation is performed.
ところが、このような汚泥の濃縮、濾過、遠心分離の操
作には時間と労力がかかり排水処理の効率が悪いという
課題があった。However, such sludge thickening, filtration, and centrifugation operations require time and labor, resulting in poor wastewater treatment efficiency.
また、多量の高分子溶液に菌体を分散すると、基質等の
透過性が悪くなり、微生物の代謝作用が低下してしまう
という課題もあった。Furthermore, when microbial cells are dispersed in a large amount of polymer solution, the permeability of substrates and the like deteriorates, resulting in a decrease in the metabolic activity of microorganisms.
一方、微生物自身の凝集、集塊機能を利用して生成され
た自己造粒汚泥は、菌体濃度が高く、沈降性及び基質等
の透過性もよいが、ｐＨ，温度、負荷、基質等の排水処
理の環境条件変化により、造粒が崩れ、分散状の細菌に
なり、沈降分離しにくい汚泥に変化してしまうという課
題があった。On the other hand, self-granulating sludge produced by utilizing the flocculation and agglomeration functions of microorganisms themselves has a high bacterial cell concentration and good sedimentation and permeability to substrates, etc. Due to changes in the environmental conditions during wastewater treatment, the granulation breaks down, becomes dispersed bacteria, and turns into sludge that is difficult to settle and separate.
また、前記環境条件の他にも、曝気や攪拌等により、応
力が加わって自己造粒汚泥が破壊され、沈降分離しにく
い汚泥に変化することもある。In addition to the above-mentioned environmental conditions, stress may be applied due to aeration, stirring, etc., and the self-granulated sludge may be destroyed, turning into sludge that is difficult to settle and separate.
本発明は前記従来技術の課題に鑑みなされたものであり
、その目的は沈降性及び担体内への基質等の透過性に優
れた自己造粒汚泥の性質を損わず、長期間維持できるゲ
ル補強自己造粒汚泥を提供することにある。The present invention was made in view of the problems of the prior art described above, and its purpose is to provide a gel that can be maintained for a long period of time without impairing the properties of self-granulated sludge, which has excellent sedimentation properties and permeability of substrates into the carrier. The purpose of the present invention is to provide a reinforced self-granulating sludge.
［課題を解決するための手段］
前記目的を達成するために、本発明にかかるゲル補強自
己造粒汚泥は、菌体濃度が高く、沈降性及び基質等の透
過性に優れた自己造粒汚泥の性質を損わないように、自
己造粒汚泥の表面を高分子ゲルで補強することを特徴と
する。[Means for Solving the Problems] In order to achieve the above object, the gel-reinforced self-granulating sludge according to the present invention is a self-granulating sludge that has a high bacterial cell concentration and has excellent sedimentation properties and permeability to substrates, etc. The surface of the self-granulating sludge is reinforced with polymer gel so as not to impair its properties.
［作用コ
本発明にかかるゲル補強自己造粒汚泥は、前述したよう
に、自己造粒汚泥の表面を高分子ゲルで補強することに
より、強度が増して破壊されにくくなる。[Operation] As described above, the gel-reinforced self-granulated sludge according to the present invention has increased strength and becomes less likely to be broken by reinforcing the surface of the self-granulated sludge with a polymer gel.
また、菌体濃度か高く、沈降性及び基質等の透過性に優
れた自己造粒汚泥の性質を長期間維持することができ、
生体反応を効率よく利用することが可能となる。In addition, it is possible to maintain the properties of self-granulating sludge for a long time, with a high bacterial cell concentration and excellent sedimentation and permeability to substrates, etc.
It becomes possible to efficiently utilize biological reactions.
［実施例］ 以下、図面に基づき本発明の好適な実施例を説明する。[Example] Hereinafter, preferred embodiments of the present invention will be described based on the drawings.
第１図には、本発明にかかるゲル補強自己造粒汚泥が示
されている。FIG. 1 shows a gel-reinforced self-granulating sludge according to the present invention.
第１図に示すゲル補強自己造粒汚泥１０は、自己造粒汚
泥１２の周囲を高分子ゲル１４で被覆、固定し形成され
る。Gel-reinforced self-granulated sludge 10 shown in FIG. 1 is formed by covering and fixing the periphery of self-granulated sludge 12 with polymer gel 14.
また、自己造粒汚泥１２の周囲に高分子ゲル１４をまぶ
す程度でも可能である。It is also possible to just sprinkle the polymer gel 14 around the self-granulating sludge 12.
そして、高分子ゲル１４の被覆方法の例としては、第２
図（Ａ）に示すように、容器１８に入れた自己造粒汚泥
１２に、ノズル２０からアルギン酸塩等の高分子物質水
溶液１６を散布して被覆する。As an example of the method of coating the polymer gel 14, the second
As shown in Figure (A), an aqueous solution 16 of a polymeric substance such as alginate is sprayed from a nozzle 20 onto the self-granulating sludge 12 placed in a container 18 to coat it.
または、第２図（Ｂ）に示すように、自己造粒汚泥１２
を高分子物質の水溶液１６が透過可能な容器２２に入れ
、アルギン酸塩等の高分子水溶液１６の入った容器１８
の中に浸漬させ、被覆する。Alternatively, as shown in FIG. 2(B), self-granulating sludge 12
is placed in a container 22 through which an aqueous solution 16 of a polymer substance can pass, and a container 18 containing an aqueous solution 16 of a polymer such as alginate is placed.
dipped in and coated.
以上のようにして、自己造粒汚泥１２に少量の高分子物
質の水溶液１６を混合、成形した後、例えばアルギン酸
塩の陽イオンをカルシウムイオンに交換させる等して、
それぞれの高分子物質に応じた方法でゲル化させて固定
する。After mixing and molding a small amount of the aqueous solution 16 of a polymer substance into the self-granulating sludge 12 as described above, for example, by exchanging the cations of alginate with calcium ions,
It is gelled and fixed using a method appropriate for each polymer substance.
また、高分子ゲル１４は公知のものでよいが、基質透過
性、酸素の拡散性、菌体への影響等を考慮すると、寒天
、アルギン酸塩、カラギーナン、キチン、キトサン、ポ
リアクリルアミド、ポリエチレングリコール、エポキシ
樹脂、光硬化性樹脂等、あるいはこれらを二つ以上組み
合わせたものを使用するのが好適である。Further, the polymer gel 14 may be a known one, but considering substrate permeability, oxygen diffusivity, influence on bacterial cells, etc., agar, alginate, carrageenan, chitin, chitosan, polyacrylamide, polyethylene glycol, etc. It is preferable to use an epoxy resin, a photocurable resin, or a combination of two or more of these resins.
第３図には本発明にかかる自己造粒汚泥の使用法が示さ
れており、同図（Ａ）は側面図、（Ｂ）は斜視図である
。FIG. 3 shows a method of using the self-granulating sludge according to the present invention, in which (A) is a side view and (B) is a perspective view.
同図においては、ゲル補強自己造粒汚泥１０をゴルフク
ラブのプロテクター様の容器２４に充填し、容器２４を
濾材シート２６の間に差し込み、固定して使用すること
で、接触酸化等の改善にも利用可能となる。In the figure, the gel-reinforced self-granulated sludge 10 is filled into a container 24 like a protector for a golf club, and the container 24 is inserted between filter media sheets 26 and used in a fixed manner to improve catalytic oxidation, etc. will also be available.
次に、本発明にかかるゲル補強自己造粒汚泥のより具体
的な被覆、固定方法を例を挙げて説明する。Next, a more specific method of covering and fixing the gel-reinforced self-granulated sludge according to the present invention will be described by way of example.
実ＪｆＬｕよ
ＵＡＳＢ法により生成したグラニユール汚泥（平均直径
２ｍｍ）を、５％アルギン酸ナトリウム水溶液に浸漬さ
せ、次いで攪拌している０、２ｍｏｌ／１塩化カルシウ
ム化法ルシウム水溶液脱液してグラニユール汚泥を被覆
、固定する。Granule sludge (average diameter 2 mm) produced by JfLu's UASB method is immersed in a 5% sodium alginate aqueous solution, and then the 0.2 mol/1 calcium chloride lucium aqueous solution is deliquified to coat the granule sludge. , fixed.
そして、本実施例にかかるゲル補強自己造粒汚泥１０，
０００ｍｇ／λと、被覆固定していないグラニユール汚
泥１０，０００ｍｇ／ｌとを使用して１ｍ”の排水を嫌
気性処理した際のメタン生成量を比較した。The gel-reinforced self-granulating sludge 10 according to this example,
The amount of methane produced when 1 m'' of wastewater was anaerobically treated using 10,000 mg/l of uncoated granule sludge and 10,000 mg/l of uncoated granule sludge was compared.
その結果を第４図に示す。The results are shown in FIG.
第４図から明らかなように、ゲル補強自己造粒汚泥では
嫌気性菌数が維持されるためほぼ理論値通りにＣＨ，が
回収される。As is clear from FIG. 4, in the gel-reinforced self-granulating sludge, the number of anaerobic bacteria is maintained, so CH, is recovered almost in line with the theoretical value.
しかし、被覆していないグラニユール汚泥を用いた場合
には、低いＣ０Ｄｃｒ値では嫌気性菌か流出するためメ
タン回収率が非常に悪い。そして、Ｃ０Ｄｃｒ値が高い
場合にのみグラニユール汚泥の流出が少なく菌数が維持
されるため、ＣＨ，生成量が理論値に近付く。However, when uncoated granule sludge is used, the methane recovery rate is very poor because anaerobic bacteria flow out at low CODcr values. Only when the C0Dcr value is high, the outflow of granule sludge is small and the number of bacteria is maintained, so the amount of CH produced approaches the theoretical value.
このように、本実施例にかかるゲル補強自己造粒汚泥に
よれば、排水中のＣ０Ｄｃｒ濃度に関わりなく嫌気性菌
の流出が少なく、常に安定した排水処理が行なわれるこ
とが理解される。As described above, it is understood that according to the gel-reinforced self-granulating sludge according to this example, the outflow of anaerobic bacteria is small regardless of the C0Dcr concentration in the wastewater, and stable wastewater treatment is always performed.
太五１汀λ
活性汚泥法で良好なフロックを形成している汚泥（平均
直径６００μｍ）２ｋｇと、１０％アルギン酸ナトリウ
ム水溶液１ｋｇを室温で混合し、内径１ｍｍのノズル（
孔数１）から毎分１ ｃｍ”で吐出させ、スターラーで
攪拌している０ 、 ２ ｍｏｌ／λ塩化カルシウム
水溶液に滴下し、脱液して球状成形したフロックを被覆
、固定する。Taigo 1 λ 2 kg of sludge (average diameter 600 μm) that has formed good flocs by activated sludge method and 1 kg of 10% sodium alginate aqueous solution are mixed at room temperature, and a nozzle with an inner diameter of 1 mm (
It is discharged at a rate of 1 cm" per minute from the hole number 1) and dropped into a 0.2 mol/λ calcium chloride aqueous solution being stirred with a stirrer to coat and fix the flocs which are dehydrated and formed into a spherical shape.
一方、比較例として、自己造粒汚泥を固定したのではな
い一般法により包括固定した汚泥を製造し、処理性を比
較した。On the other hand, as a comparative example, sludge which was not fixed by self-granulating sludge but which was comprehensively fixed by a general method was produced and the processability was compared.
その結果、同一濃度の活性汚泥量を維持して同程度の処
理効果を挙げるためには、一般の包括固定法により固定
した汚泥では、本実施例にかかるゲル補強自己造粒汚泥
のを用いた場合に比較し、攪拌のための送風量が約１．
３倍必要であった。As a result, in order to maintain the same activated sludge concentration and achieve the same level of treatment effect, it is necessary to use the gel-reinforced self-granulated sludge according to this example for sludge fixed by the general comprehensive fixation method. Compared to the case, the amount of air blown for stirring is about 1.
It required three times as much.
これは、一般の包括固定法ではゲル量が多くなり、攪拌
のエネルギーが余分に必要であることに起因する。This is because the general entrapment fixation method results in a large amount of gel and requires additional energy for stirring.
以上のゲル補強自己造粒汚泥を排水処理における種菌の
供給、高負荷運転処理への補給、沈降性の改善などに利
用すれば、自己造粒汚泥が破壊されにくくなり、また菌
体濃度が高く、沈降性及び基質や酸素の透過性に優れた
高能率の排水処理を行なうことが可能となる。If the above gel-reinforced self-granulated sludge is used to supply seed bacteria in wastewater treatment, replenishment for high-load operation treatment, and improve sedimentation, the self-granulated sludge will be less likely to be destroyed, and the bacterial cell concentration will be high. , it becomes possible to perform highly efficient wastewater treatment with excellent sedimentation properties and permeability to substrates and oxygen.
［発明の効果］
以上説明したように、本発明にかかるゲル補強自己造粒
汚泥によれば、自己造粒汚泥の表面を高分子ゲルで補強
したので、自己造粒汚泥の性質を長期間維持することが
でき、活性を損うことなく、効率的に排水処理を行なう
ことか可能となる。[Effects of the Invention] As explained above, according to the gel-reinforced self-granulating sludge of the present invention, the surface of the self-granulating sludge is reinforced with polymer gel, so the properties of the self-granulating sludge can be maintained for a long period of time. This makes it possible to efficiently treat wastewater without impairing its activity.
第１図は本発明の一実施例にかかるゲル補強自己造粒汚
泥の説明図、
第２図は自己造粒汚泥への高分子水溶液の被覆方法の説
明図、
第３図は本発明の一実施例にかかるゲル補強自己造粒汚
泥の使用例の説明図、
第４図は本発明にかかるゲル補強自己造粒汚泥と、従来
のグラニユール汚泥とを使用して排水を嫌気性処理した
場合のメタン生成量の説明図である。
１２ ・・・ 自己造粒汚泥、
１４
高分子ゲル、
６
高分子水溶液。FIG. 1 is an explanatory diagram of gel-reinforced self-granulated sludge according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of a method of coating self-granulated sludge with a polymer aqueous solution, and FIG. 3 is an explanatory diagram of a method of coating self-granulated sludge with an aqueous polymer solution. An explanatory diagram of an example of the use of the gel-reinforced self-granulated sludge according to the example. FIG. 3 is an explanatory diagram of the amount of methane produced. 12... Self-granulating sludge, 14 Polymer gel, 6 Polymer aqueous solution.
Claims (1)
子ゲルで補強することを特徴とするゲル補強自己造粒汚
泥。(1) A gel-reinforced self-granulated sludge characterized by reinforcing self-granulated sludge produced by microorganisms with a polymer gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2051284A JPH03254895A (en) | 1990-03-01 | 1990-03-01 | Gel-reinforced self-granulated sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2051284A JPH03254895A (en) | 1990-03-01 | 1990-03-01 | Gel-reinforced self-granulated sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03254895A true JPH03254895A (en) | 1991-11-13 |
Family
ID=12882635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2051284A Pending JPH03254895A (en) | 1990-03-01 | 1990-03-01 | Gel-reinforced self-granulated sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03254895A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994029224A1 (en) * | 1993-06-16 | 1994-12-22 | Toyo Denka Kogyo Co., Ltd. | Water treatment method and water treatment apparatus |
| US5766465A (en) * | 1993-06-16 | 1998-06-16 | Toyo Denka Kogyo Co., Ltd. | Water treatment apparatus |
| WO2000048948A1 (en) * | 1999-02-19 | 2000-08-24 | Japan Science And Technology Corporation | Magnetic sludge suitable for use in waste water treatment and method for preparing the same and method for waste water treatment |
| JP2002336885A (en) * | 2001-05-21 | 2002-11-26 | Kurita Water Ind Ltd | Method for aerobic treatment of waste water |
| CN104528929A (en) * | 2015-01-05 | 2015-04-22 | 江南大学 | Method for cultivating aerobic granular sludge quickly at low temperature |
| CN106006932A (en) * | 2016-07-18 | 2016-10-12 | 芮少春 | Immobilized microorganism ball applied to membrane technology sewage treatment unit and operation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62279887A (en) * | 1986-05-28 | 1987-12-04 | Sanki Eng Co Ltd | Surface immobilized anaerobic bacteria granule and treatment of waste water using same |
-
1990
- 1990-03-01 JP JP2051284A patent/JPH03254895A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62279887A (en) * | 1986-05-28 | 1987-12-04 | Sanki Eng Co Ltd | Surface immobilized anaerobic bacteria granule and treatment of waste water using same |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994029224A1 (en) * | 1993-06-16 | 1994-12-22 | Toyo Denka Kogyo Co., Ltd. | Water treatment method and water treatment apparatus |
| US5766465A (en) * | 1993-06-16 | 1998-06-16 | Toyo Denka Kogyo Co., Ltd. | Water treatment apparatus |
| WO2000048948A1 (en) * | 1999-02-19 | 2000-08-24 | Japan Science And Technology Corporation | Magnetic sludge suitable for use in waste water treatment and method for preparing the same and method for waste water treatment |
| US6673244B1 (en) | 1999-02-19 | 2004-01-06 | Japan Science And Technology Corporation | Magnetic sludge suitable for use in wastewater treatment, method for preparing the same and method for wastewater treatment |
| EP2241537A1 (en) * | 1999-02-19 | 2010-10-20 | Japan Science And Technology Agency | Apparatus with magnetic sludge for use in wastewater treatment |
| JP2002336885A (en) * | 2001-05-21 | 2002-11-26 | Kurita Water Ind Ltd | Method for aerobic treatment of waste water |
| CN104528929A (en) * | 2015-01-05 | 2015-04-22 | 江南大学 | Method for cultivating aerobic granular sludge quickly at low temperature |
| CN106006932A (en) * | 2016-07-18 | 2016-10-12 | 芮少春 | Immobilized microorganism ball applied to membrane technology sewage treatment unit and operation method |
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