JPH01155995A - Improved type activated sludge treatment for pectin-containing waste water - Google Patents
Improved type activated sludge treatment for pectin-containing waste waterInfo
- Publication number
- JPH01155995A JPH01155995A JP62314793A JP31479387A JPH01155995A JP H01155995 A JPH01155995 A JP H01155995A JP 62314793 A JP62314793 A JP 62314793A JP 31479387 A JP31479387 A JP 31479387A JP H01155995 A JPH01155995 A JP H01155995A
- Authority
- JP
- Japan
- Prior art keywords
- pectin
- activated sludge
- waste water
- cod
- sludge 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.)
- Pending
Links
- 239000001814 pectin Substances 0.000 title claims abstract description 30
- 229920001277 pectin Polymers 0.000 title claims abstract description 30
- 235000010987 pectin Nutrition 0.000 title claims abstract description 30
- 239000002351 wastewater Substances 0.000 title claims abstract description 27
- 239000010802 sludge Substances 0.000 title claims abstract description 24
- 241000894006 Bacteria Species 0.000 claims abstract description 26
- 241000233866 Fungi Species 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 13
- 230000003311 flocculating effect Effects 0.000 claims description 10
- 238000004065 wastewater treatment Methods 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 241001672694 Citrus reticulata Species 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000004062 sedimentation Methods 0.000 description 8
- 238000005273 aeration Methods 0.000 description 7
- 238000009924 canning Methods 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000001376 precipitating effect Effects 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 229920001817 Agar Polymers 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- FHKPLLOSJHHKNU-INIZCTEOSA-N [(3S)-3-[8-(1-ethyl-5-methylpyrazol-4-yl)-9-methylpurin-6-yl]oxypyrrolidin-1-yl]-(oxan-4-yl)methanone Chemical compound C(C)N1N=CC(=C1C)C=1N(C2=NC=NC(=C2N=1)O[C@@H]1CN(CC1)C(=O)C1CCOCC1)C FHKPLLOSJHHKNU-INIZCTEOSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Activated Sludge Processes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は活性汚泥処理の困難なペクチン含有廃水の新規
な微生物処理方法に関する。詳しく言えば、ペクチン質
を凝集性のペクチン分解菌群を用いて低分子化した後、
活性汚泥処理によって完全分解することを特徴とするみ
かん缶詰廃水等のペクチン含有廃水の処理方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a novel microbial treatment method for pectin-containing wastewater, which is difficult to treat with activated sludge. Specifically, after pectin is reduced to a low molecular weight using aggregating pectin-degrading bacteria,
The present invention relates to a method for treating pectin-containing wastewater, such as wastewater from canned mandarin oranges, which is completely decomposed by activated sludge treatment.
みかん缶詰廃水の処理に直接には活性汚泥処理が困難で
あったことから、メタン発酵処理を行った後、活性汚泥
処理する方式がとられている。メタン発酵が嫌気性であ
ることから、活性汚泥処理において、多量の空気を要す
ること及び処理施設費が多大である等の欠点があり、中
小企業では採用しにくい方法であった。そのような理由
から中小企業の缶詰工場では、みかん缶詰加工を断念し
ているところが多くあり、従来の処理法は不完全な処理
法である。Since activated sludge treatment was difficult to directly treat wastewater from canned mandarin oranges, a method has been adopted in which activated sludge treatment is performed after methane fermentation treatment. Since methane fermentation is anaerobic, activated sludge treatment has drawbacks such as requiring a large amount of air and requiring a large amount of processing facility costs, making it difficult for small and medium-sized enterprises to adopt this method. For this reason, many small and medium-sized canning factories have given up on canning mandarin oranges, and conventional processing methods are incomplete.
従来の活性汚泥処理によってみかん缶詰廃水を処理する
場合、みかん缶詰廃水中のモノマーの中性糖類は分解さ
れるけれども、高分子のペクチンが分解されないで活性
汚泥に吸着されたリ、混入して沈澱槽に入るため、はじ
めの５日間程度は処理が可能であるが、以後は処理が不
可能になった。これは返送汚泥にペクチンが多く混入し
、汚泥のＢＯＤ分解活性が低下するためである。When treating mandarin orange canned wastewater using conventional activated sludge treatment, although the monomer neutral sugars in the mandarin orange canned wastewater are decomposed, the polymeric pectin is not decomposed and is adsorbed to the activated sludge, mixed in and precipitated. Because it is placed in a tank, treatment is possible for the first five days, but treatment is no longer possible after that. This is because a large amount of pectin is mixed into the returned sludge, reducing the BOD decomposition activity of the sludge.
この問題点を解決するためには、ペクチンを低分子化及
び分解し、しかも凝集・沈澱性であって、沈澱槽におい
て容易に沈澱し、処理水との分離が可能なペクチン分解
菌群を見出すことが重要な課題となる。In order to solve this problem, we need to find a group of pectin-degrading bacteria that can reduce the molecular weight of pectin and decompose it, as well as flocculate and settle, allowing it to easily settle in a settling tank and be separated from treated water. This is an important issue.
凝集・沈澱性のペクチン分解菌群の創製法について具体
的に記述する。We will specifically describe the method for creating a group of flocculating and precipitating pectin-degrading bacteria.
一般には糸状菌は活性汚泥処理において、ＢＯＤ成分を
除去するけれどもバルキングの原因になることから、防
除することが行われている。Although filamentous fungi are generally used to remove BOD components during activated sludge treatment, they cause bulking, so they are controlled.
本発明ではペクチンを分解する糸状菌を逆に利用しよう
とするものである。すなわちペクチンを分解する糸状菌
の中からペクチン分解活性の大きなものを選抜し、本菌
群をみかん缶詰廃水を成分とする培養基を入れた坂ロフ
ラスコ中で振とう培養した。これを次にビー力を用いて
の散気管による通気培養に切り換え１４日間培養して後
、静置し、菌体を沈澱させ、沈澱した菌体のみ回収した
。次にこの菌体にみかん缶詰廃水を加え同様の通気培養
を行った。この操作を６回以上繰り返した時、沈降速度
が早くなり、静置培養したこの菌体の顕微鏡観察の結果
、この菌体は糸状菌が主体であるが３種類以上の微生物
の集合体であることが分かった。The present invention attempts to utilize filamentous fungi that degrade pectin. That is, from among the filamentous fungi that degrade pectin, those with high pectin-degrading activity were selected, and this group of bacteria was cultured with shaking in a Sakaro flask containing a culture medium containing mandarin orange canning wastewater. This was then switched to aerated culture using an aeration tube using bee force, and after culturing for 14 days, the culture was allowed to stand to precipitate the microbial cells, and only the precipitated microbial cells were collected. Next, wastewater from canned mandarin oranges was added to the bacterial cells, and the same aeration culture was performed. When this operation was repeated six times or more, the sedimentation rate increased, and as a result of microscopic observation of the statically cultured bacteria, it was found that the bacteria were mainly filamentous fungi, but were an aggregate of three or more types of microorganisms. That's what I found out.
上述のように糸状菌は一般にバルキングの原因になるが
、この凝集・沈澱性のペクチン分解菌群は全くその傾向
がなく、沈降速度も大きく、４時間以内の静置によりほ
とんどの菌体が沈殿することが分かった。それは、寒天
平面培地上では糸状菌の構造が糸状部と中間及び先端に
玉状物の胞子嚢のある糸状菌として観察されるが、本国
は不完全菌であるので曝気状態で培養すると糸状部の隔
壁の構造が弱く、こわれて糸状菌にはならないが酵素分
泌性などの生理活性は低下しないという特徴を有するこ
とが明らかになった。またペクチン分解菌群によって前
処理した上澄液を、次に通常の活性汚泥処理法によって
浄化した場合、処理水の清澄性も良いという特徴があっ
た。As mentioned above, filamentous fungi generally cause bulking, but this group of flocculating/sedimentating pectin-degrading bacteria does not have that tendency at all, and has a high sedimentation rate, so most of the fungi will settle within 4 hours. I found out that it does. On an agar flat medium, the structure of the filamentous fungus is observed as a filamentous fungus with a filamentous part and sporangia of balls in the middle and at the tip, but since it is a deficient fungus in its home country, when cultured in an aerated state, the filamentous structure is observed as a filamentous fungus. It has been revealed that the structure of the septum is weak, and although it does not break down and become a filamentous fungus, its physiological activities such as enzyme secretion do not decrease. Furthermore, when the supernatant liquid pretreated with the pectin-degrading bacteria group was then purified by a normal activated sludge treatment method, the treated water was characterized by good clarity.
みかん缶詰廃水（ＣＯＤ約４０００１）Ｅｌｌｍ）を本
菌群を用いて分解した場合のＣＯＤの低下を第１図に、
ペクチン分解菌群の沈降曲線を第２図に示す。また本菌
群を用いたみかん缶詰廃水の低分子化処理及び活性汚泥
処理を実施例によって具体的に説明する。Figure 1 shows the decrease in COD when mandarin orange canning wastewater (COD approx. 40001) was decomposed using this bacterial group.
Figure 2 shows the sedimentation curve of the pectin-degrading bacteria group. In addition, low molecular weight treatment and activated sludge treatment of canned mandarin orange wastewater using this bacterial group will be specifically explained using examples.
実施例１
糸状菌に属するペクチン分解菌の中からペクチン分解力
の大きなものを選択し、これをペクチン基質の培地に植
菌し、曝気−沈殿一上清液の放流−培地添加を繰り返し
、凝集・沈殿のペクチン分解菌群を創製した。本ペクチ
ン分解菌群の沈降速度は第２図に示した様に沈降初期に
おいて大きく、はぼ４時間の沈降時間で良いことから、
廃水処理への適用は十分可能であることが分かった。Example 1 Among the pectin-degrading bacteria belonging to filamentous fungi, those with a large pectin-degrading ability were selected, and they were inoculated into a pectin-substrate medium, and the process of aeration, precipitation, discharging the supernatant, and addition of the medium was repeated to cause flocculation.・We created a group of bacteria that degrade pectin in the sediment. As shown in Figure 2, the sedimentation rate of this pectin-degrading bacteria group is high at the early stage of sedimentation, and the sedimentation time is only about 4 hours.
It was found that application to wastewater treatment is fully possible.
実施例２
みかん缶詰工程のアルカリ処理廃水８丈と酸処理廃水８
Ｌからなるみかん缶詰廃水（ＣＯＤ３２００ｐｐｍ）を
苛性シータによってｐＨ４，５とし、これに２．７ｇの
尿素と１．１ｇのリン１１！２水素１カリウムを加え、
上述の凝集・沈殿性のペクチン分解菌群を加えて曝気し
た。ペクチンの分解と共にｐＨが上昇するので硫酸によ
ってｌ）ＨをｐＨ８になったときＤＨ７に降下させた。Example 2 8 pieces of alkali-treated wastewater and 8 pieces of acid-treated wastewater from the mandarin orange canning process
Mandarin orange canning wastewater (COD 3200 ppm) consisting of L was adjusted to pH 4.5 using caustic theta, and 2.7 g of urea and 1.1 g of phosphorus 11!2 hydrogen monopotassium were added.
The above-mentioned flocculating/sedimentating pectin-degrading bacteria group was added and aerated. Since the pH increases with the decomposition of pectin, l) H was lowered to DH7 when the pH reached 8 using sulfuric acid.
−２日間のバッチ式処理における空間負荷は１ 、２９
Ｋｇ −ＣＯＤ ／ ａｔ’・日であり、ＣＯＤの除
去速度は１．０，２ｈ−ＣＯＤ／ｍ１日であった。この
場合のＣＯＤ除去率は７９％であり、残存するペクチン
は２〜３邑体に低分子化されていた。 ′
実施例３
実施例２と同様のみかん缶詰廃水（ＣＯＤ３８００ｐｐ
ｍ）に同量の尿素とリン酸２水素１カリウムを加え、ｐ
Ｈ５，０とし、これに凝集・沈殿性のペクチン分解菌群
を加えて曝気し、２８後１）Ｈ８，８になったものを硫
酸でｐＨ７，０とし、さらに３日曝気を継続した。この
場合はｐＨ管理が実施例２に比べて粗調整であルノテ、
ＣＯＤの除去速ａｌｆｉ０．６４Ｋｇ−ＣＯＤ ／ ｍ
’・日と低いが、第１図に見られるように１）Ｈ制御を
しない場合よりＣＯＤ除去速度がはるかに大きいことが
分かった。- Space load for 2 days of batch processing is 1,29
Kg -COD/at'·day, and the COD removal rate was 1.0.2 h-COD/m1 day. In this case, the COD removal rate was 79%, and the remaining pectin was reduced to 2 to 3 molecules. 'Example 3 Mandarin canned wastewater similar to Example 2 (COD 3800pp
Add the same amount of urea and monopotassium dihydrogen phosphate to m), and add p
The pH was adjusted to 5.0, and a group of flocculating and precipitating pectin-degrading bacteria was added thereto, followed by aeration.After 28 hours, the pH became 8.8 (1).The pH was adjusted to 7.0 with sulfuric acid, and aeration was continued for an additional 3 days. In this case, the pH control is roughly adjusted compared to Example 2.
COD removal rate alfi0.64Kg-COD/m
Although the COD removal rate was as low as 1.5 days, as shown in Figure 1, it was found that 1) the COD removal rate was much higher than in the case without H control.
実施例４
実施例１によって得た分解及び低分子化された中間処理
水をバッチ式活性汚泥処理によって浄化処理した結果、
ＣＯＤ ４００ ｐｐｍの原水が８時間の曝気処理によ
ってＣＯＤ ２００ ｐｐｍとなった。みかん缶詰工場
の洗浄工程水が実施例１の原水の３倍以上あることから
、水沫によって十分に排水の排出基準は守られることが
明らかになった。Example 4 As a result of purifying the decomposed and low molecular weight intermediate treated water obtained in Example 1 by batch activated sludge treatment,
Raw water with a COD of 400 ppm became COD 200 ppm after 8 hours of aeration treatment. Since the amount of water used in the washing process at the tangerine cannery was more than three times that of the raw water in Example 1, it became clear that the water droplets were sufficient to comply with the wastewater discharge standards.
実施例５
実施例１によって得た中間処理水を曝気槽容積９ｊ、の
連続標準活性汚泥処理によってＣＯＤ除去を行った結果
、ＣＯＤの容積負荷０．９に９−ＣＯＤ／Ｖ・日の場合
、処理水の残存ＣＯＤは１９８ ＤＩ）ｍであり、ＣＯ
Ｄ除去率６２．３％であった。洗浄工程水がこの原水の
３倍以上あることから排水の排出基準は十分守られうる
。Example 5 As a result of removing COD from the intermediate treated water obtained in Example 1 by continuous standard activated sludge treatment in an aeration tank volume of 9j, when the volumetric load of COD was 0.9 and 9-COD/V day, The residual COD of the treated water is 198 DI)m, and the COD
The D removal rate was 62.3%. Since the cleaning process water is more than three times the raw water, the wastewater discharge standards can be fully complied with.
実施例６
都市下水処理の活性汚泥菌２容に対し、本発明の凝集・
沈殿性ペクチン分解菌を１容の割合に混合し、これをみ
かん缶詰廃水に馴養した。Example 6 Two volumes of activated sludge bacteria from urban sewage treatment were treated with the flocculation and
Precipitating pectin-degrading bacteria were mixed at a ratio of 1 volume, and the mixture was acclimatized to mandarin orange canning wastewater.
バッチ法によりこの種菌に対し、みかん缶詰廃水と上述
の窒素及びリンを加え、ｐＨ６，５〜ｐＨ８の範囲で曝
気処理した結果、ＣＯＤ１５００ｐｐｍのものが２０時
間で０００１５０００ｍとなり、ＣＯＤ除去率９０％が
達成された。Using the batch method, this inoculum was treated with canned mandarin wastewater, nitrogen and phosphorus as mentioned above, and aerated in the pH range of 6.5 to pH 8. As a result, the COD of 1,500 ppm became 0,001,5,000 m in 20 hours, achieving a COD removal rate of 90%. It was done.
これはペクチンの低分子化とＣＯＤの除去を同時に行う
方法である。This is a method that simultaneously reduces the molecular weight of pectin and removes COD.
第１図は凝集・沈殿性のペクチン分解菌によってペクチ
ン含有廃水を処理する場合ｐＨを制御した場合としない
場合の処理日数の差を示したものである。第２図は凝集
・沈殿性ペクチン分解菌群の沈降速度を表わす沈降曲線
を示したものである。
特許出願人 工業技術院長 飯塚幸三処理日数 （日
）FIG. 1 shows the difference in the number of treatment days when pectin-containing wastewater is treated with flocculating and precipitating pectin-degrading bacteria, with and without pH control. FIG. 2 shows a sedimentation curve representing the sedimentation rate of the flocculating/sedimentating pectin-degrading bacteria group. Patent applicant: Director of the Agency of Industrial Science and Technology Kozo Iizuka Processing days (days)
Claims (3)
した後、活性汚泥処理することを特徴とするペクチン含
有廃水の処理方法。(1) A method for treating pectin-containing wastewater, which comprises reducing the molecular weight of pectin with a group of flocculating pectin-degrading bacteria and then treating it with activated sludge.
だ活性汚泥を用いて処理することを特徴とするペクチン
含有廃水の処理方法。(2) A method for treating pectin-containing wastewater, which comprises treating pectin-containing wastewater using activated sludge containing flocculating pectin-degrading bacteria.
て得られた凝集性の糸状菌であることを特徴とする特許
請求範囲第１項及び第２項記載のペクチン含有廃水処理
方法。(3) The pectin-containing wastewater treatment method according to claims 1 and 2, wherein the flocculating pectin-degrading bacteria group is a flocculating filamentous fungus obtained by acclimatization with a pectin substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62314793A JPH01155995A (en) | 1987-12-11 | 1987-12-11 | Improved type activated sludge treatment for pectin-containing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62314793A JPH01155995A (en) | 1987-12-11 | 1987-12-11 | Improved type activated sludge treatment for pectin-containing waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01155995A true JPH01155995A (en) | 1989-06-19 |
Family
ID=18057663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62314793A Pending JPH01155995A (en) | 1987-12-11 | 1987-12-11 | Improved type activated sludge treatment for pectin-containing waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01155995A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010094607A (en) * | 2008-10-16 | 2010-04-30 | Kochi Univ | Method of cleaning waste water containing pectin |
| CN103204591A (en) * | 2013-04-15 | 2013-07-17 | 杭州浙大易泰环境科技有限公司 | Microbiological treatment process for pectin wastewater |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53117255A (en) * | 1977-03-22 | 1978-10-13 | Kuraray Co Ltd | Method of treating waste water containing pectic substances |
| JPS6028893A (en) * | 1983-07-26 | 1985-02-14 | Tax Adm Agency | Treatment of waste water |
-
1987
- 1987-12-11 JP JP62314793A patent/JPH01155995A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53117255A (en) * | 1977-03-22 | 1978-10-13 | Kuraray Co Ltd | Method of treating waste water containing pectic substances |
| JPS6028893A (en) * | 1983-07-26 | 1985-02-14 | Tax Adm Agency | Treatment of waste water |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010094607A (en) * | 2008-10-16 | 2010-04-30 | Kochi Univ | Method of cleaning waste water containing pectin |
| CN103204591A (en) * | 2013-04-15 | 2013-07-17 | 杭州浙大易泰环境科技有限公司 | Microbiological treatment process for pectin wastewater |
| CN103204591B (en) * | 2013-04-15 | 2014-10-15 | 杭州浙大易泰环境科技有限公司 | Microbiological treatment process for pectin wastewater |
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