JPS62294496A - Wastewater treatment method using activated sludge method - Google Patents
Wastewater treatment method using activated sludge methodInfo
- Publication number
- JPS62294496A JPS62294496A JP61135887A JP13588786A JPS62294496A JP S62294496 A JPS62294496 A JP S62294496A JP 61135887 A JP61135887 A JP 61135887A JP 13588786 A JP13588786 A JP 13588786A JP S62294496 A JPS62294496 A JP S62294496A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- wastewater
- wastewater treatment
- treatment method
- organic components
- 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
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
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Activated Sludge Processes (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
［産業上の利用分野１
本発明は有機成分を含有する排水の処理方法に関し、特
にミカン等の果物あるいはコーヒーなどの缶詰を製造す
る際に排出する排水を活性汚泥法で処理する改良法を提
供するものである。Detailed Description of the Invention 3. Detailed Description of the Invention [Industrial Application Field 1 The present invention relates to a method for treating wastewater containing organic components, and is particularly applicable to the production of canned fruits such as mandarin oranges or canned coffee such as coffee. The present invention provides an improved method for treating discharged wastewater using an activated sludge method.
［従来の技術］
有機成分を含有する排水の処理方法として活性汚泥法が
ある。活性汚泥法とは排水に活性汚泥菌を存在させ曝気
し、有機成分を汚泥化する。[Prior Art] There is an activated sludge method as a method for treating wastewater containing organic components. The activated sludge method involves the presence of activated sludge bacteria in wastewater and aeration to turn organic components into sludge.
ついで、沈殿槽にて汚泥を分離し、上澄液は処理水とし
て排出し、汚泥の一部は曝気槽で再使用する。沈殿槽で
は汚泥の迅速な沈降および凝集による体積の減少が望ま
れるので、凝集剤として界面活性剤の使用が一般的であ
る。The sludge is then separated in a settling tank, the supernatant liquid is discharged as treated water, and a portion of the sludge is reused in an aeration tank. In settling tanks, it is desired that the volume of the sludge be reduced by rapid settling and flocculation, and therefore a surfactant is generally used as a flocculant.
［発明が解決しようとする問題点］
しかし、これらの従来法では、排水中に含まれているペ
クチン質や多糖類が活性汚泥菌の沈降を阻害し、その沈
降速度が極めて遅い。[Problems to be Solved by the Invention] However, in these conventional methods, the pectic substances and polysaccharides contained in the wastewater inhibit the sedimentation of activated sludge bacteria, and the sedimentation rate is extremely slow.
沈降速度を増加する目的で凝集剤を使用しても効果は認
められるが、生産が増え排水中の有機成分濃度が増大し
た場合には多量の凝集剤を使用しなければならず経済的
負担は極めて大きい。また、凝集剤を使用しても汚泥の
沈降速度や凝集体積は、季節等の温度による変動か大き
く、低温時にはそれらの点で効果か不充分である。The use of flocculants to increase the sedimentation rate can be effective, but when production increases and the concentration of organic components in wastewater increases, large amounts of flocculants must be used, which poses an economic burden. Extremely large. Furthermore, even if a flocculant is used, the sedimentation rate and flocculation volume of sludge vary greatly depending on the temperature, such as the season, and the effect is insufficient at low temperatures.
［問題点を解決するための手段および作用］本発明者ら
は］−記問題点を解決するため、鋭意検討を重ねた結果
、天然ゼオライトが汚泥の沈降を促進する著しい機能を
有することを見出し本発明に至った。[Means and effects for solving the problems] In order to solve the problems mentioned above, the present inventors have conducted intensive studies and found that natural zeolite has a remarkable function of promoting the settling of sludge. This led to the present invention.
天然ゼオライトとじてはモルデナイト、チャバサイト、
クリノプチロライト、フェリエライト、フォージャサイ
ト、エリオナイトなどが知られており、そのいずれも本
発明方法に適用することができる。Natural zeolites include mordenite, chabasite,
Clinoptilolite, ferrierite, faujasite, erionite, and the like are known, and any of them can be applied to the method of the present invention.
従来の凝集剤や合成ゼオライトに比べて天然ゼオライト
かｌ’ｉ泥の沈降を促進する著しい機能を有する理由は
明白ではないが、天然ゼオライトに含まれている金属カ
チオン成分とゼオライト結晶の有する表面機能とによっ
て汚泥の凝集及び沈降を促進しているものと考えられる
。その中でもクリノプチロライト、モルデナイト、チャ
バサイトが好ましい。その形態は粉状で使用するのが好
ましく 、２００メツシュ稈度またはそれよりも粉度の
小さいものを使用するのがその効果を発揮させる意味で
特に好ましい。その使用量は特に限定されないか、通常
、排水に対して０．０１〜３ ｗｔ％の範囲で効果的に
使用でき、０．１〜１ ｗｔ％の範囲が特に好ましい。It is not clear why natural zeolite has a remarkable ability to promote the sedimentation of l'i mud compared to conventional flocculants or synthetic zeolite, but it is due to the metal cation components contained in natural zeolite and the surface functionality of zeolite crystals. It is thought that this promotes sludge flocculation and sedimentation. Among them, clinoptilolite, mordenite, and chabasite are preferred. It is preferable to use the powder in the form of powder, and it is particularly preferable to use powder with a culmness of 200 mesh or smaller in order to obtain the desired effect. The amount used is not particularly limited, but it can be used effectively in the range of 0.01 to 3 wt% based on the wastewater, and the range of 0.1 to 1 wt% is particularly preferable.
また、天然ゼオライトは塩酸等の鉱酸で処理した後に使
用することもできる。塩酸等で処理した天然ゼオライト
は排水のｐｌｌが高くアルカリ性を示す場合に効果的で
ある。Moreover, natural zeolite can also be used after being treated with a mineral acid such as hydrochloric acid. Natural zeolite treated with hydrochloric acid or the like is effective when the wastewater has a high pll and is alkaline.
本発明か適用される排水は、有機成分を含有する排水で
あり、特に、ミカン等の果物やコーヒー缶詰の製造時に
排出される排水が効果的であるが、有機成分を含有する
他の排水であっても何ら差し支えない。The wastewater to which the present invention is applied is wastewater containing organic components, and wastewater discharged during the production of fruits such as mandarin oranges and canned coffee is particularly effective, but other wastewater containing organic components is effective. There is no problem even if there is.
本発明法を実施するためにこれらの排水を汚泥菌の存在
下で曝気し汚泥化する。汚泥化するためのいわゆる活性
汚泥法は特に限定はなく当業者に公知の方法でよい。In order to carry out the method of the present invention, these wastewaters are aerated in the presence of sludge bacteria to turn them into sludge. The so-called activated sludge method for converting into sludge is not particularly limited, and any method known to those skilled in the art may be used.
［発明の効果］
本発明によれば、従来の方法に比べて極めて短時間に汚
泥を沈降させることができ、かつ汚泥の体積を小さくす
ることができる。また、その効果は排水の温度によって
あまり影響されない。更には、天然ゼオライトは、口過
助剤としても作用するので、汚泥を固型化する場合の固
液分離が極めて容易となる。[Effects of the Invention] According to the present invention, sludge can be settled in an extremely short time compared to conventional methods, and the volume of sludge can be reduced. Also, its effectiveness is not significantly affected by the temperature of the wastewater. Furthermore, since natural zeolite also acts as a filter aid, solid-liquid separation when solidifying sludge becomes extremely easy.
［実施例］ 以下実施例で詳細に説明する。[Example] This will be explained in detail in Examples below.
使用した排水および凝集剤は以下のとおりである。後記
の表における略号は、ここに説明するものを意味する。The wastewater and flocculant used were as follows. Abbreviations in the table below mean what is explained here.
く使用した排水汚泥〉
・排水汚泥Ｃ
コーヒー缶詰製造時の混合排水（ＣＯＤ ３００ ｍｇ
／ ＩＩ 、 ８８１００ｍｇ／ Ｊｌ ）を汚泥菌の
存在下で曝気して得た排水汚泥（ＭＬＳＳ ２４００
ｍｇ／ｌ 、 Ｄｏ ４ａ＋ｇ／ｊ２）
・排水汚泥Ｍ
ミカン缶詰製造時の混合排水（ＣＯＤ １３００ＩＩ１
ｇ／ｊ２ 、 ＳＳ １８００ ｒｎｇ／Ｊ！ ）を汚
泥菌の存在下で曝気して得た排水汚泥（Ｍｌ、８８３１
００ ｔａｇ／ ｊ２ 、 ＤＯ５ｍｇ／ｌ）
く使用したゼオライト〉
・天然ゼオライト（いずれもアナコンダ社製）１０１０
＾ （クリノプチロライト）
１０１０＾１１（ＩＯＩＯＡをｌＮ−１１ｃ１で処理し
たもの）２Ｄ２［ＩＡ （モルデナイト）
−〇 −
２０２０ＡＩ＋ （２０２ＯＡをＬ Ｎ −ｔｌ Ｃ１
で処理したもの）・合成ゼオライト（いずれも東洋曹達
工業■製）Ａ−３（Ｋ型Ａ）
Ａ−４（Ｎａ型Ａ）
Ａ−５（Ｃａ型Ａ）
Ｐ−９（Ｎａ型Ｘ）
１１ＯＡ （Ｉｆ型モルデナイト、 ＴＳＺ−６４０
１ＯＡ）以上はすべて粉状品で使用した。・Drainage sludge C Mixed wastewater from the production of canned coffee (COD 300 mg)
/II, 88100mg/Jl) in the presence of sludge bacteria (MLSS 2400
mg/l, Do 4a+g/j2) - Drainage sludge M Mixed wastewater from manufacturing canned mandarin oranges (COD 1300II1
g/j2, SS 1800 rng/J! ) was aerated in the presence of sludge bacteria (Ml, 8831
00 tag/j2, DO5mg/l) Zeolite used> Natural zeolite (all manufactured by Anaconda) 1010
^ (Clinoptilolite) 1010^11 (IOIOA treated with lN-11c1) 2D2[IA (Mordenite) -〇 - 2020AI+ (202OA treated with L N -tl C1
Synthetic zeolite (both manufactured by Toyo Soda Kogyo ■) A-3 (K type A) A-4 (Na type A) A-5 (Ca type A) P-9 (Na type X) 11OA (If type mordenite, TSZ-640
1OA) or more were all used in powder form.
く凝集剤〉
ＡＣＩＥ （マックス−製りラリーファイヤーＡＣＥ
）く活性炭〉
活性炭（市販粉状活性炭）
実施例１〜２７及び比較例１〜２８
排水汚泥１ｊ２をＩＡのメスシリンダーにとり、一定温
度下でゼオライト等の沈降促進剤を一定量加えよく混合
したのち静置し、汚泥の沈降体積の経時変化を測定した
。Flocculant> ACIE (Max-manufactured Rally Fire ACE
) Activated carbon> Activated carbon (commercially available powdered activated carbon) Examples 1 to 27 and Comparative Examples 1 to 28 Place 1j2 of wastewater sludge in an IA graduated cylinder, add a certain amount of sedimentation accelerator such as zeolite at a certain temperature, and mix well. The sludge was allowed to stand still, and the change in sedimentation volume of the sludge over time was measured.
個々の条件及び結果を表に示す。Individual conditions and results are shown in the table.
Claims (4)
する排水処理方法において、汚泥と上澄液とを分離する
ための汚泥沈降促進剤として天然ゼオライトを用いるこ
とを特徴とする排水処理方法。(1) A wastewater treatment method for treating wastewater containing organic components by an activated sludge method, characterized in that natural zeolite is used as a sludge settling accelerator for separating sludge and supernatant liquid.
る際に排出する排水である特許請求の範囲第１項記載の
排水処理方法。(2) The wastewater treatment method according to claim 1, wherein the wastewater containing organic components is wastewater discharged when producing canned coffee.
に排出する排水である特許請求の範囲第１項記載の排水
処理方法。(3) The wastewater treatment method according to claim 1, wherein the wastewater containing organic components is wastewater discharged when producing canned fruits.
イト、チャバサイトの群から選ばれるいずれかである特
許請求の範囲第１〜３項のいずれかの項に記載の排水処
理方法。(4) The wastewater treatment method according to any one of claims 1 to 3, wherein the natural zeolite is any one selected from the group of clinoptilolite, mordenite, and chabasite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61135887A JPH0783875B2 (en) | 1986-06-13 | 1986-06-13 | Wastewater treatment method by activated sludge method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61135887A JPH0783875B2 (en) | 1986-06-13 | 1986-06-13 | Wastewater treatment method by activated sludge method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62294496A true JPS62294496A (en) | 1987-12-21 |
| JPH0783875B2 JPH0783875B2 (en) | 1995-09-13 |
Family
ID=15162112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61135887A Expired - Lifetime JPH0783875B2 (en) | 1986-06-13 | 1986-06-13 | Wastewater treatment method by activated sludge method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0783875B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03178395A (en) * | 1989-12-05 | 1991-08-02 | Nippon Steel Corp | Biological treatment |
| FR2659644A1 (en) * | 1990-03-13 | 1991-09-20 | Eparco Sa | BIOLOGICAL ACTIVATOR COMPOSITION FOR SEPTIC TANK. |
| WO1998050311A1 (en) * | 1997-05-02 | 1998-11-12 | Alexandra Kantardjieff | Liquid waste treatment bioreactor process and apparatus |
| WO2000047525A1 (en) * | 1999-02-11 | 2000-08-17 | Zeolite Australia Limited | Process for the removal of suspended and other material from waste water |
| KR20020022389A (en) * | 2000-09-20 | 2002-03-27 | 이정학 | Submerged membrane coupled activated sludge process using zeolite |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5327261A (en) * | 1976-08-25 | 1978-03-14 | Toyobo Co Ltd | Method of treating waste water |
-
1986
- 1986-06-13 JP JP61135887A patent/JPH0783875B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5327261A (en) * | 1976-08-25 | 1978-03-14 | Toyobo Co Ltd | Method of treating waste water |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03178395A (en) * | 1989-12-05 | 1991-08-02 | Nippon Steel Corp | Biological treatment |
| FR2659644A1 (en) * | 1990-03-13 | 1991-09-20 | Eparco Sa | BIOLOGICAL ACTIVATOR COMPOSITION FOR SEPTIC TANK. |
| WO1998050311A1 (en) * | 1997-05-02 | 1998-11-12 | Alexandra Kantardjieff | Liquid waste treatment bioreactor process and apparatus |
| US6387267B1 (en) | 1997-05-02 | 2002-05-14 | Alexandra Kantardjieff | Liquid waste treatment bioreactor process and apparatus |
| WO2000047525A1 (en) * | 1999-02-11 | 2000-08-17 | Zeolite Australia Limited | Process for the removal of suspended and other material from waste water |
| KR20020022389A (en) * | 2000-09-20 | 2002-03-27 | 이정학 | Submerged membrane coupled activated sludge process using zeolite |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0783875B2 (en) | 1995-09-13 |
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