JPS6039410B2 - Dehydration treatment method for oil-containing sludge - Google Patents
Dehydration treatment method for oil-containing sludgeInfo
- Publication number
- JPS6039410B2 JPS6039410B2 JP57144440A JP14444082A JPS6039410B2 JP S6039410 B2 JPS6039410 B2 JP S6039410B2 JP 57144440 A JP57144440 A JP 57144440A JP 14444082 A JP14444082 A JP 14444082A JP S6039410 B2 JPS6039410 B2 JP S6039410B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- furnace
- containing sludge
- sludge
- 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.)
- Expired
Links
- 239000010802 sludge Substances 0.000 title claims description 20
- 238000000034 method Methods 0.000 title claims description 9
- 238000011282 treatment Methods 0.000 title claims description 9
- 208000005156 Dehydration Diseases 0.000 title description 2
- 230000018044 dehydration Effects 0.000 title description 2
- 238000006297 dehydration reaction Methods 0.000 title description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 239000005909 Kieselgur Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000012752 auxiliary agent Substances 0.000 description 5
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 4
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 4
- 229920006317 cationic polymer Polymers 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 229920002873 Polyethylenimine Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 229940050176 methyl chloride Drugs 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
- Filtration Of Liquid (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
【発明の詳細な説明】
本発明は含油汚泥の脱水処理に際して脱離液中の油分が
十分に低減される含油汚泥の脱水処理方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for dewatering oil-containing sludge, in which the oil content in the desorbed liquid is sufficiently reduced during the dewatering treatment of oil-containing sludge.
含油汚泥は石油精製工場、石油化学工場、その他石油を
取扱うところから排出される。Oil-bearing sludge is discharged from oil refineries, petrochemical plants, and other places that handle oil.
例えば廃油貯留槽の沈殿汚泥、オイル系機器や配管の洗
浄廃液などがあり、処理の困難なものである。従来、含
油汚泥は凝集処理を施して、又は施さずに遠心脱水機或
いはケィソウ士を炉過助剤とするプレコートフイルター
により脱水処理されていた。しかしながら従来法では、
汚泥の脱水により脱離された液（炉液）中に依然として
油分が含まれているため、炉液を再度凝集処理しなけれ
ばらならかつた。そして、凝集処理により含油汚泥が発
生し、これを脱水処理しなければならなかつた。このよ
うに従来法では、同様の操作を繰り返さなければならな
い等処理が煩雑で処理日数が長く費用の嵩むものであっ
た。本発明の目的は上記問題を解決するために含油汚泥
の脱水処理に際して炉液中の油分が十分に低減される含
油汚泥の脱水処理方法を提供することにある。Examples include precipitated sludge from waste oil storage tanks and waste liquid from cleaning oil-based equipment and pipes, which are difficult to treat. Conventionally, oil-containing sludge has been dehydrated using a centrifugal dehydrator or a precoat filter using diatomizer as a furnace filter aid, with or without flocculation treatment. However, in the conventional method,
Since the liquid (furnace liquid) removed by dewatering the sludge still contained oil, the furnace liquid had to be coagulated again. The coagulation process generated oil-containing sludge, which had to be dehydrated. As described above, in the conventional method, the processing is complicated, such as having to repeat similar operations, and the processing time is long and the cost is high. SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a method for dewatering oil-containing sludge in which the oil content in the furnace fluid is sufficiently reduced during the dewatering treatment of oil-containing sludge.
本発明は、先ず後段の脱水処理を容易にするために含油
汚泥に凝集処理を施す。In the present invention, oil-containing sludge is first subjected to flocculation treatment in order to facilitate the subsequent dewatering treatment.
凝集剤には公知の無機凝集剤及び／又はカチオン性有機
凝集剤を使用することができる。例えば、無機凝集剤と
しては、硫酸アルミニウム、ポリ塩化アルミニウム、塩
化第二鉄、硫酸第一鉄などが使用でかさる。A known inorganic flocculant and/or cationic organic flocculant can be used as the flocculant. For example, as the inorganic flocculant, aluminum sulfate, polyaluminum chloride, ferric chloride, ferrous sulfate, etc. can be used.
カチオン性有機高分子凝集剤としては、ポリエチレンィ
ミン、ジメチルアミノヱチルメタクリレ−トのホモポリ
マー、ソメチルアミノエチルメタクリレートとアクリル
アミドのコポリマー、ジメチルアミノエチルメタクリレ
ートのメチルクロライド、ジメチルサルフヱートまたは
ペンジルクロラィドによる四級化物のホモポリマ−、前
記四級化物とアクリルアミドとのコポリマーなどが使用
できる。凝集剤添加後は、ｐＨを調整して、十分に燈拝
しフロックを形成させる。凝集後、含油汚泥は、ケィソ
ウ士と活性炭の混合物を炉過助剤とするプレコートフィ
ルタ−によって脱水処理を行う。Examples of the cationic organic polymer flocculant include polyethyleneimine, a homopolymer of dimethylaminoethyl methacrylate, a copolymer of somethylaminoethyl methacrylate and acrylamide, methyl chloride of dimethylaminoethyl methacrylate, dimethyl sulfate, or A homopolymer of a quaternized product of pendyl chloride, a copolymer of the quaternized product and acrylamide, etc. can be used. After adding the flocculant, the pH is adjusted and the mixture is sufficiently stirred to form flocs. After flocculation, the oil-containing sludge is dehydrated using a pre-coated filter using a mixture of diatomite and activated carbon as a furnace filter aid.
ケィソウ士と活性炭の混合比は油分除去効果と塗布性能
を考慮し、活性炭の量は炉過助剤全体の５〜３０％が良
い。又、プレコート層の厚みは４０〜８仇奴が好ましい
。なお、対象含油汚泥のＳＳが高い場合は遠心分離機を
併用し、得られた脱離水を本法に適用すると良い。The mixing ratio of diatomizer and activated carbon takes into consideration the oil removal effect and coating performance, and the amount of activated carbon is preferably 5 to 30% of the total furnace auxiliary agent. Further, the thickness of the precoat layer is preferably 40 to 8 mm. In addition, if the SS of the target oil-containing sludge is high, it is recommended to use a centrifuge in combination and apply the obtained desorbed water to this method.
本発明によれば、従来のケィソウ士のみを炉過助剤とし
たプレコートフィルタ−による脱水処理法に比べて、油
分及びＳＳ濃度が低く清澄な炉液が得られ煩雑な処理を
繰り返す必要がない。According to the present invention, compared to the conventional dehydration treatment method using a pre-coat filter using only diatomizer as a furnace auxiliary agent, a clear furnace liquid with a lower concentration of oil and SS can be obtained, and there is no need to repeat complicated treatments. .
又、一般に助剤炉過では炉液の清澄度を高めるには炉週
速度を犠牲にしなければならないが、本発明ではそのよ
うな不都合はない。以下、実施例により本発明の効果を
明らかにする。Furthermore, in general, in auxiliary filtration, the furnace speed must be sacrificed in order to increase the clarity of the furnace liquid, but the present invention does not have such disadvantages. Hereinafter, the effects of the present invention will be clarified through Examples.
実施例 １
対象舎油汚泥
ｐＨ８．２ ｎ−へキサン ３２０ゆｐｍＳＳ３．４
％上記含油汚泥に塩化第２鉄３００肋ｐｍ、カチオン性
高分子凝集剤（栗田工業株式会社製クリフィックスＣＰ
−６２４）ｌｏｐｐｍを添加し、苛性ソーダにてｐＨ８
．２に調整後十分空気擬拝した。Example 1 Target building oil sludge pH 8.2 n-hexane 320 pm SS 3.4
% The above oil-containing sludge was mixed with 300 pm of ferric chloride and a cationic polymer flocculant (Clifix CP manufactured by Kurita Water Industries, Ltd.).
-624) add loppm and pH 8 with caustic soda
．． After adjusting to 2, I did enough air worship.
そしてこの調整汚泥をプレコートフィルタ−（新東プレ
ーター株式会社製プレコート式真空回転炉過機「ハイパ
ーバックＤ舵−４比型」）に通水し脱水ケーキ及び炉液
を得た。なおプレコートフィルターはケィソゥ士８０％
、活性炭２０％の混合物を炉過助剤とし、プレコート層
の厚みは約６仇ゆである。得られた脱水ケーキの含水率
、炉液の水質および炉週速度を表一１に示す。比較のた
めにケィソウ士のみを炉過助剤とするプレコ−トフィル
タ−に通水した場合（比較例−１）および塩化第２鉄、
クリスィックスＣＰ−６２４を添加する前処理を行わず
直接ケィソウ士のみを炉過助剤としたプレコートフィル
タ−に通水した場合（比較例−２）の結果を表−１に示
す。The adjusted sludge was then passed through a pre-coat filter (pre-coat type vacuum rotary furnace filtration machine "Hyperback D rudder-4 ratio type" manufactured by Shinto Plater Co., Ltd.) to obtain a dehydrated cake and furnace liquid. In addition, the pre-coat filter is 80% Keiso.
, a mixture of 20% activated carbon was used as a furnace auxiliary agent, and the thickness of the precoat layer was about 6 mm. Table 1 shows the moisture content of the obtained dehydrated cake, the water quality of the furnace liquid, and the furnace speed. For comparison, when water was passed through a pre-coat filter using only Diatomite as a furnace auxiliary agent (Comparative Example-1) and ferric chloride,
Table 1 shows the results when water was directly passed through a pre-coat filter using only Diatomite as a furnace auxiliary agent (Comparative Example 2) without performing any pre-treatment to add CRISIX CP-624.
この結果から明らかなように本法では、ケィソウ士のみ
を炉過助剤とした比較例に比べ、炉液中の油分及びＳＳ
濃度は非常に低かった。表−１
実施例 ２
対象含油汚泥
ｐＨ８．２ ｎ−へキサン １８５１０ｐｐｍＳＳ１
８．２％上記含油汚泥にカチオン性高分子凝集剤（クリ
フィックスＣＰ−６２４）を５０蛇ｐｍ添加しフロック
を形成させた後、遠０脱水機（石川島播磨重工業株式会
社製「ＨＳ−５０４型」′に通水し脱水ケーキと脱離水
を分離した。As is clear from these results, in this method, oil content in the furnace liquid and SS
The concentration was very low. Table-1 Example 2 Target oil-containing sludge pH 8.2 n-hexane 18510 ppm SS1
8.2% After adding 50 pm of a cationic polymer flocculant (Cryfix CP-624) to the above oil-containing sludge to form flocs, a far-zero dehydrator (model HS-504 manufactured by Ishikawajima-Harima Heavy Industries Co., Ltd.) was used. Water was passed through the tube to separate the dehydrated cake and desorbed water.
次に脱水雛中に塩化第２鉄２００倣ｐｍ、ヵチオン系高
分子凝集剤５ｐｐｍを添加し、苛性ソーダにてｐＨ８．
１に調整後十分空気擬拝した。この調整脱離水をケィソ
ゥ士８０％、活性炭２０％１の混合物を炉週助剤とする
プレコートフィルタ−に通水し脱水ケーキ及び炉液を得
た。Next, 200 pm of ferric chloride and 5 ppm of a cationic polymer flocculant were added to the dehydrated chicks, and the pH was adjusted to 8 with caustic soda.
After adjusting to 1, I did enough air worship. This adjusted desorbed water was passed through a pre-coat filter using a mixture of 80% carbon dioxide and 20% activated carbon as a furnace additive to obtain a dehydrated cake and furnace liquid.
得られた脱水ケーキの含水率および炉液の油分濃度測定
結果を表−２に示す。Table 2 shows the results of measuring the moisture content of the obtained dehydrated cake and the oil concentration of the furnace liquid.
表−２Table-2
Claims (1)
する方法において、ケイソウ土と活性炭の混合物を濾過
助剤としてプレコートしたプレコートフイルターを使用
することを特徴とする含油汚泥の脱水処理方法。1. A method for dewatering oil-impregnated sludge, which comprises using a pre-coat filter pre-coated with a mixture of diatomaceous earth and activated carbon as a filter aid, in a method of dewatering oil-impregnated sludge using a pre-coat filter after coagulation treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57144440A JPS6039410B2 (en) | 1982-08-20 | 1982-08-20 | Dehydration treatment method for oil-containing sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57144440A JPS6039410B2 (en) | 1982-08-20 | 1982-08-20 | Dehydration treatment method for oil-containing sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5936512A JPS5936512A (en) | 1984-02-28 |
| JPS6039410B2 true JPS6039410B2 (en) | 1985-09-05 |
Family
ID=15362260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57144440A Expired JPS6039410B2 (en) | 1982-08-20 | 1982-08-20 | Dehydration treatment method for oil-containing sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6039410B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4557566B2 (en) * | 2003-02-26 | 2010-10-06 | 株式会社大本組 | Disposal methods for contaminated water, contaminated mud, and other contaminants |
| CN1301920C (en) * | 2004-03-29 | 2007-02-28 | 福建凤竹纺织科技股份有限公司 | Method for treating dyeing and finishingw aste water using diatomaceous earth and active carbon and its special equipment |
| CN102580397A (en) * | 2012-03-09 | 2012-07-18 | 德芮克化工设备（昆山）有限公司 | Method for recovering suspended solid from terephthalic acid oxidized mother liquor |
| CN115321767A (en) * | 2022-08-23 | 2022-11-11 | 天华化工机械及自动化研究设计院有限公司 | Comprehensive treatment device and method for water-containing and oil-containing sludge |
-
1982
- 1982-08-20 JP JP57144440A patent/JPS6039410B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5936512A (en) | 1984-02-28 |
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