JPS63232900A - Method for dehydrating sludge - Google Patents
Method for dehydrating sludgeInfo
- Publication number
- JPS63232900A JPS63232900A JP62066814A JP6681487A JPS63232900A JP S63232900 A JPS63232900 A JP S63232900A JP 62066814 A JP62066814 A JP 62066814A JP 6681487 A JP6681487 A JP 6681487A JP S63232900 A JPS63232900 A JP S63232900A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- pulverized coal
- mixed
- added
- organic polymer
- 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 43
- 238000000034 method Methods 0.000 title claims description 11
- 239000003245 coal Substances 0.000 claims abstract description 27
- 229920000620 organic polymer Polymers 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims 2
- 239000000203 mixture Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000010800 human waste Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、汚泥の脱水方法に関するものである。[Detailed description of the invention] [Industrial application field] This invention relates to a method for dewatering sludge.
上水、下水、し尿、産業廃水などの処理に伴なって発生
する汚泥を、フィルタープレス、ベルトプレス、真空脱
水機あるいは遠心脱水機等の脱水機によって脱水する場
合、従来は、汚泥の脱水性を向上させるために、汚泥に
有機高分子凝集剤を添加して汚泥を凝集させた後、脱水
機に供給するようにしている。When dewatering sludge generated from the treatment of clean water, sewage, human waste, industrial wastewater, etc. using a dehydrator such as a filter press, belt press, vacuum dehydrator, or centrifugal dehydrator, conventionally, the dewaterability of the sludge was In order to improve the sludge, an organic polymer flocculant is added to the sludge to flocculate the sludge, and then the sludge is fed to the dehydrator.
この発明は、汚泥の脱水性がさらに向上するような汚泥
の脱水方法を提供しようとするものである。The present invention aims to provide a method for dewatering sludge that further improves the dewaterability of sludge.
〔問題点を解決するための手段］
この発明は、汚泥に有機高分子凝集剤と共に微粉炭を添
加混合して脱水するようにしたものである。[Means for Solving the Problems] In the present invention, pulverized coal is added and mixed with an organic polymer flocculant to sludge for dewatering.
汚泥に微粉炭を添加混合することにより、これがケーキ
となった時に、ケーキ層内における濾過抵抗が小さくな
るので、濾過性が改善され、その結果としてケーキ含水
率が低下する。By adding and mixing pulverized coal to sludge, when the sludge becomes a cake, the filtration resistance in the cake layer is reduced, so the filtration performance is improved, and as a result, the moisture content of the cake is reduced.
以下、この発明の実施例を添付図面に基づいて説明する
。Embodiments of the present invention will be described below with reference to the accompanying drawings.
この発明は、汚泥１をフィルタープレス、ベルトプレス
、真空脱水機、遠心脱水機等の脱水機２に供給する前に
、汚泥１に有機高分子凝集剤３と微粉炭４とを添加混合
するようにしたものである。This invention involves adding and mixing an organic polymer flocculant 3 and pulverized coal 4 to the sludge 1 before supplying the sludge 1 to a dehydrator 2 such as a filter press, belt press, vacuum dehydrator, centrifugal dehydrator, etc. This is what I did.
上記微粉炭４は、石灰、木炭などのような炭素を主成分
とする炭化物を微細化したものであり、その粒径が主と
して０〜５ｍｍ、望ましくはＯ〜１鵬に分布するものを
使用する。The pulverized coal 4 is a finely divided carbide whose main component is carbon, such as lime or charcoal, and the particle size of the pulverized coal is mainly 0 to 5 mm, preferably 0 to 1 mm. .
上記微粉炭４を汚泥１に添加混合する時期としては、汚
泥１に有機高分子凝集剤３を添加混合する前でも後でも
、あるいは同時でもよい。以下にその一例を説明する。The pulverized coal 4 may be added to and mixed with the sludge 1 before or after the organic polymer flocculant 3 is added and mixed with the sludge 1, or at the same time. An example will be explained below.
まず、汚泥１は、ロータリー混和機５に供給され、ロー
タリー混和機５内において汚泥１に有機高分子凝集剤３
が添加混合される。上記有機高分子凝集剤３は、ポリマ
ー溶解クンクロからポンプ７によりロータリー混和機５
に投入されるようになっている。First, the sludge 1 is supplied to the rotary mixer 5, and in the rotary mixer 5, the sludge 1 is mixed with an organic polymer flocculant 3.
is added and mixed. The above-mentioned organic polymer flocculant 3 is transferred from the polymer-dissolved Kunkuro to a rotary mixer 5 by a pump 7.
It is planned to be introduced into the
このようにして、有機高分子凝集剤３が添加混合された
汚泥１は、凝集混和タンク８に定量的に投入される。In this way, the sludge 1 to which the organic polymer flocculant 3 has been added and mixed is quantitatively charged into the flocculation mixing tank 8.
微粉炭４は、ホッパー９から定量的に供給され、フライ
トコンベヤ等の移送コンベヤＴｏによって凝集混和タン
ク８内に投入され、凝集混和タンク８内において微粉炭
４と有機高分子凝集剤３と汚泥１とが混合される。微粉
炭４が投入される凝集混和タンク８の投入口１１の下端
には、汚泥のはね返り防止板１２が設置されている。Pulverized coal 4 is quantitatively supplied from a hopper 9 and is introduced into a flocculation mixing tank 8 by a transfer conveyor To such as a flight conveyor, where the pulverized coal 4, organic polymer flocculant 3, and sludge 1 are combined in the flocculation mixing tank 8. are mixed. A sludge splash prevention plate 12 is installed at the lower end of the input port 11 of the coagulation mixing tank 8 into which the pulverized coal 4 is input.
上記ａ集混和タンク８内において、微粉炭４と有機高分
子凝集剤３とが混合された汚泥１は、ポンプ１３によっ
てフィルタープレス等の脱水機２に供給されて脱水され
る。In the a collection mixing tank 8, the sludge 1 in which the pulverized coal 4 and the organic polymer flocculant 3 are mixed is supplied by a pump 13 to a dehydrator 2 such as a filter press and dehydrated.
次にこの発明の脱水方法の具体的な運転データを示す。Next, specific operational data of the dehydration method of the present invention will be shown.
（１）対象汚泥 し尿を生物処理後、凝集沈澱処理した
時に発生した汚泥
（性状） Ｔ Ｓ ２５．０００〜３２．０００
ｍｇ／ ｉ！Ｓ Ｓ ２０．０００〜２５．０００
ｍｇ／ １ＶＴＳ ５０〜５５％
ＶＳＳ６０〜７０％
ＰＨ６，９〜７．５
Ｍアルカリ度１．０００〜１．５００ ｍｇ／ Ｉｔ
粗繊維分 ０．９〜３．３％一対ＳＳ
粗浮遊物 ０．７〜２．７％一対５Ｓ
（２）脱水機 濾布固定式フィルタープレス（３）脱
水機運転 １７．５〜１８．５ｈｒ／サイクルの脱水運
転
（４）有機高分子凝集剤 クボックスＣＰ−４０１Ｂ（
商品名カチオン１００モル％）
（添加率）１．０〜１．３％一対５Ｓ
（５）供試微粉炭の物性
（イ）銘柄：無煙炭粉 ０．６ｍｍ以下（切発熱Ｉｔ
： ６．９００〜７．０００ ｋｃａｌ／ｋｇ−ｄｒ
ｙ（ハ）団有水分：２．４％
に）粒度分布：０．１５肛以下 ３２．４％０．１５
〜０．２５順 ２６．５％
０．２５〜０．５９ｍ ４０．７％
０．５９順以上 ０．４％
（６）結果
脱水ケーキの含水率と微粉炭の添加率との関係は第２図
に示すとおりであり、微粉炭を汚泥に添加することによ
りケーキの含水率が低下していることがわかる。またケ
ーキの剥離性が向上した。(1) Target sludge Sludge generated when human waste is subjected to biological treatment and coagulation sedimentation treatment (characteristics) T S 25.000 to 32.000
mg/i! SS 20.000~25.000
mg/1VTS 50-55% VSS60-70% PH6.9-7.5 M Alkalinity 1.000-1.500 mg/It
Crude fiber content 0.9~3.3% 1 pair SS Crude suspended matter 0.7~2.7% 1 pair 5S (2) Dehydrator Fixed filter cloth filter press (3) Dehydrator operation 17.5~18.5 hr /cycle dehydration operation (4) Organic polymer flocculant Kubox CP-401B (
(Product name: cation 100 mol%) (addition rate) 1.0 to 1.3% one pair 5S (5) Physical properties of test pulverized coal (a) Brand: Anthracite powder 0.6 mm or less (cutting heat It
: 6.900-7.000 kcal/kg-dr
y (C) Group water content: 2.4%) Particle size distribution: 0.15 or less 32.4% 0.15
~0.25 order 26.5% 0.25~0.59m 40.7% 0.59 order or more 0.4% (6) Results The relationship between the moisture content of the dehydrated cake and the addition rate of pulverized coal is the second As shown in the figure, it can be seen that the moisture content of the cake is reduced by adding pulverized coal to the sludge. Also, the peelability of the cake was improved.
この発明は、以上の如きものであるから、以下に列挙す
る効果がある。Since the present invention is as described above, it has the effects listed below.
（１）脱水ケーキの含水率が低下する。(1) The moisture content of the dehydrated cake decreases.
（２）脱水機におけるケーキの剥離性が向上し、ケーキ
自重による落下が容易になる。(2) The peelability of the cake in the dehydrator is improved, and the cake falls easily due to its own weight.
（３）微粉炭は重油同様にカロリー源であるため、ケー
キの乾燥ならびに焼却する際に使用する重油の使用量を
低減することができる。(3) Since pulverized coal is a calorie source like heavy oil, the amount of heavy oil used when drying and incinerating the cake can be reduced.
（４）汚泥に微粉炭を添加することにより、ケーキはパ
サパサしており、脱水ケーキ焼却時に熱がケ−キに伝達
しやすく、焼却効率が向上する。(4) By adding pulverized coal to the sludge, the cake is dry and heat is easily transferred to the cake during incineration of the dehydrated cake, improving incineration efficiency.
（５）微粉炭の添加により、汚泥の悪臭成分は微粉炭に
吸着されるので、悪臭の発生が少なくなる。(5) By adding pulverized coal, the malodorous components of sludge are adsorbed by the pulverized coal, which reduces the occurrence of malodors.
第１図はこの発明の一実施例を示す概略工程図、第２図
はケーキ含水率と微粉炭添加率との関係を示すグラフで
ある。
１・・・・・・汚泥、２・・・・・・脱水機、４・・・
・・・微粉炭、３・・・・・・有機高分子凝集剤。
特許出願人 久保田鉄工株式会社
同 代理人 鎌 １） 文 二
第１図
第２図
微粉炭添加率（”Ｉ・）FIG. 1 is a schematic process diagram showing an embodiment of the present invention, and FIG. 2 is a graph showing the relationship between cake moisture content and pulverized coal addition rate. 1...Sludge, 2...Dehydrator, 4...
...pulverized coal, 3...organic polymer flocculant. Patent applicant: Kubota Iron Works Co., Ltd. Agent: Kama 1) Text 2 Figure 1 Figure 2 Pulverized coal addition rate (“I・)
Claims (5)
合して脱水する汚泥の脱水方法。(1) A sludge dewatering method in which pulverized coal is added and mixed with an organic polymer flocculant to sludge for dewatering.
子凝集剤を添加混合することを特徴とする特許請求の範
囲第１項記載の汚泥の脱水方法。(2) The sludge dewatering method according to claim 1, characterized in that pulverized coal is first added and mixed to the sludge, and then an organic polymer flocculant is added and mixed.
後微粉炭を添加混合することを特徴とする特許請求の範
囲第１項記載の汚泥の脱水方法。(3) A method for dewatering sludge according to claim 1, characterized in that an organic polymer flocculant is first added and mixed with the sludge, and then pulverized coal is added and mixed therewith.
混合することを特徴とする特許請求の範囲第１項記載の
汚泥の脱水方法。(4) The method for dewatering sludge according to claim 1, characterized in that an organic polymer flocculant and pulverized coal are added and mixed to the sludge at the same time.
て懸濁溶液を作製し、この懸濁溶液を汚泥に添加混合す
ることを特徴とする特許請求の範囲第１項記載の汚泥の
脱水方法。(5) The method according to claim 1, characterized in that pulverized coal is added to and mixed with a solution of an organic polymer flocculant to prepare a suspension solution, and this suspension solution is added and mixed with sludge. Method of dewatering sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62066814A JPS63232900A (en) | 1987-03-20 | 1987-03-20 | Method for dehydrating sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62066814A JPS63232900A (en) | 1987-03-20 | 1987-03-20 | Method for dehydrating sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63232900A true JPS63232900A (en) | 1988-09-28 |
Family
ID=13326697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62066814A Pending JPS63232900A (en) | 1987-03-20 | 1987-03-20 | Method for dehydrating sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63232900A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009254921A (en) * | 2008-04-11 | 2009-11-05 | Mhi Environment Engineering Co Ltd | Method and system for drying treatment of organic sludge |
| CN109293214A (en) * | 2018-11-28 | 2019-02-01 | 辽宁科技大学 | The sludge fuel production method mixed with auxiliary fuel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52120548A (en) * | 1976-04-05 | 1977-10-11 | Babcock Hitachi Kk | Method of improving dehydrability of sludge by addition of finely divi ded carbon particles |
| JPS5439373A (en) * | 1977-09-02 | 1979-03-26 | Babcock Hitachi Kk | Method of dehydrating and incinerating sludge |
| JPS54124554A (en) * | 1978-03-22 | 1979-09-27 | Babcock Hitachi Kk | Dehydration of sludge |
| JPS5588900A (en) * | 1978-12-27 | 1980-07-04 | Sumitomo Chem Co Ltd | Sludge dehydration treating method |
-
1987
- 1987-03-20 JP JP62066814A patent/JPS63232900A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52120548A (en) * | 1976-04-05 | 1977-10-11 | Babcock Hitachi Kk | Method of improving dehydrability of sludge by addition of finely divi ded carbon particles |
| JPS5439373A (en) * | 1977-09-02 | 1979-03-26 | Babcock Hitachi Kk | Method of dehydrating and incinerating sludge |
| JPS54124554A (en) * | 1978-03-22 | 1979-09-27 | Babcock Hitachi Kk | Dehydration of sludge |
| JPS5588900A (en) * | 1978-12-27 | 1980-07-04 | Sumitomo Chem Co Ltd | Sludge dehydration treating method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009254921A (en) * | 2008-04-11 | 2009-11-05 | Mhi Environment Engineering Co Ltd | Method and system for drying treatment of organic sludge |
| CN109293214A (en) * | 2018-11-28 | 2019-02-01 | 辽宁科技大学 | The sludge fuel production method mixed with auxiliary fuel |
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