JPH0223598B2 - - Google Patents
Info
- Publication number
- JPH0223598B2 JPH0223598B2 JP59123833A JP12383384A JPH0223598B2 JP H0223598 B2 JPH0223598 B2 JP H0223598B2 JP 59123833 A JP59123833 A JP 59123833A JP 12383384 A JP12383384 A JP 12383384A JP H0223598 B2 JPH0223598 B2 JP H0223598B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- fluidized bed
- organic sludge
- dehydrated cake
- solid fuel
- 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 - Lifetime
Links
- 239000003921 oil Substances 0.000 claims description 31
- 239000010802 sludge Substances 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 239000004449 solid propellant Substances 0.000 claims description 10
- 230000018044 dehydration Effects 0.000 claims description 9
- 238000006297 dehydration reaction Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000000341 volatile oil Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 239000000047 product Substances 0.000 description 7
- 239000010801 sewage sludge Substances 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010800 human waste Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 239000010899 old newspaper Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Treatment Of Sludge (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、下水、し尿、各種産業廃水などの有
機性汚水処理において発生する有機性汚泥を脱水
乾燥し、固形燃料化する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 method for dehydrating and drying organic sludge generated in the treatment of organic sewage such as sewage, human waste, and various industrial wastewater to convert it into solid fuel. be.
従来、各種の有機性汚泥に対しては、膨大な経
費を費やして焼却、埋立てなどの処分が行われて
おり、下水処理場その他の有機性汚泥の発生施設
の大きな悩みになつているのが現状である。
Conventionally, various types of organic sludge have been disposed of by incineration, landfill, etc. at great expense, which has become a major problem for sewage treatment plants and other facilities that generate organic sludge. is the current situation.
また、有機性汚泥を脱水、乾燥して、肥料とし
て有効利用しようとする試みや、そのいくつかの
実施例もみられるが、乾燥用の燃料を多く必要と
し、さらに乾燥排ガスの処理設備を要し、経費も
高いことなどの問題点が十分解決されていないた
め、実用的ではなかつた。 There have also been attempts to dehydrate and dry organic sludge and use it effectively as fertilizer, and there are some examples of this, but these require a lot of fuel for drying and require equipment to process dry exhaust gas. However, problems such as high costs had not been fully resolved, making it impractical.
本発明は、全く新規な着想にもとづき、有機性
汚泥を悪臭の発生とダストの発生を防止できる乾
燥方法によつて乾燥するとともに、燃料的性状が
きわめて優れた乾燥汚泥、すなわち固形燃料化
し、各種産業分野で利用可能たらしめ、有機性汚
泥の発生サイド及び燃料を必要とする各種産業サ
イドの両者にとつて一挙両得の効果を得ることが
できる方法を提供しよとするものである。
The present invention is based on a completely new idea, in which organic sludge is dried using a drying method that can prevent the generation of bad odors and dust, and it is also converted into dried sludge with extremely excellent fuel properties, that is, solid fuel, and used for various purposes. The present invention aims to provide a method that can be used in the industrial field and can provide a win-win effect for both the organic sludge generation side and the various industries that require fuel.
〔問題点を解決するための手段〕
本発明は、有機性汚泥に脱水助剤を添加して加
熱下で脱水し、得られた脱水ケーキに難揮発性の
油を添加したのち、該含油脱水ケーキを水蒸気を
流動化用ガスとして用い流動層乾燥を行つて含油
乾燥物を得ると共に、該流動層乾燥工程から排出
される余剰水蒸気を前記有機性汚泥の脱水工程の
加熱源として利用することを特徴とする有機性汚
泥の固形燃料化方法である。[Means for Solving the Problems] The present invention involves adding a dehydration aid to organic sludge, dehydrating it under heating, adding a hardly volatile oil to the obtained dehydrated cake, and then adding the oil-containing dewatering agent to the organic sludge. The cake is subjected to fluidized bed drying using water vapor as a fluidizing gas to obtain an oil-containing dried product, and the excess water vapor discharged from the fluidized bed drying process is used as a heating source for the organic sludge dehydration process. This is a method for turning organic sludge into solid fuel.
本発明の一実施例を、下水汚泥への適用を例に
とりあげて図面を参照しながら説明すれば次の通
りである。
An embodiment of the present invention will be described below with reference to the drawings, taking application to sewage sludge as an example.
下水汚泥（生汚泥、混合生汚泥など）１に、脱
水助剤２を添加したのち、スクリユープレス、高
圧搾ベルトプレスなどの圧搾型の脱水機３によつ
て、可能な限り低含水率の脱水ケーキ５となるま
で、圧力、時間などを調整して加熱下で脱水す
る。４は脱水分離水である。 After adding a dewatering aid 2 to sewage sludge (raw sludge, mixed raw sludge, etc.) 1, the water content is reduced to as low as possible using a compression type dehydrator 3 such as a screw press or a high-pressure belt press. The mixture is dehydrated under heat by adjusting the pressure, time, etc. until a dehydrated cake 5 is obtained. 4 is dehydrated separated water.
この脱水に最も好ましい脱水機としては、高圧
圧搾可能なスクリユープレス脱水機を使用し、脱
水ケーキ５の含水率を60〜70％、あるいはそれ以
下にするとよく、図示例の６はテーパーコーン
で、スクリユープレス脱水機におけるケーキ出口
の圧力を調整するものである。 The most preferable dehydrator for this dehydration is a screw press dehydrator capable of high pressure compression, and the water content of the dehydrated cake 5 is preferably 60 to 70% or less. , to adjust the pressure at the cake outlet in the screw press dehydrator.
また、脱水助剤２としては、消石灰、塩化第二
鉄、カチオンポリマなどを使用するが、古新聞、
古雑誌その他の故紙をハイドロパルパーによつて
解離して繊維スラリとなし、このスラリを脱水助
剤２として単独又は前記助剤と併用添加して脱水
すると、脱水ケーキ５の含水率が低下するばかり
でなく、脱水ケーキ５の造粒性が向上すること、
脱水ケーキ５が多孔質になるために油が滲み込み
やすく、流動層乾燥における乾燥速度が向上する
こと、さらに乾燥物の発熱量、着火性が増加する
という重要な効果がある。 In addition, as the dehydration aid 2, slaked lime, ferric chloride, cationic polymer, etc. are used, but old newspapers,
When old magazines and other waste paper are dissociated by a hydropulper to form a fiber slurry, and this slurry is added as the dehydration aid 2 alone or in combination with the above-mentioned aid for dehydration, the moisture content of the dehydrated cake 5 will only decrease. but the granulation properties of the dehydrated cake 5 are improved,
Since the dehydrated cake 5 is porous, oil easily permeates therein, which has the important effect of improving the drying rate in fluidized bed drying and further increasing the calorific value and ignitability of the dried product.
しかして、脱水ケーキ５を一旦ホツパ７に貯留
し、重油、機械油、これらの廃油などの難揮発性
の油８を少量脱水ケーキ５に添加したのち、移送
ポンプ９によつて流動層乾燥機１０に供給する。
油８と脱水ケーキ５は移送ポンプ９にて移送され
る過程で自動的によく混合されるので、特別な混
練機は必ずしも必要ではない。 After the dehydrated cake 5 is temporarily stored in the hopper 7 and a small amount of hardly volatile oil 8 such as heavy oil, machine oil, or their waste oil is added to the dehydrated cake 5, it is transferred to the fluidized bed dryer by the transfer pump 9. Supply to 10.
Since the oil 8 and the dehydrated cake 5 are automatically mixed well during the process of being transferred by the transfer pump 9, a special kneader is not necessarily required.
本発明におけるこの油８の添加率は、脱水ケー
キ５の乾燥固形物重量をWc（Kg）とし、油８の添
加量をWo（Kg）とした場合、
Wo／Wc≦2.0
となるように設定することが好ましい。すなわ
ち、油８の添加量が多量すぎると、スラリ状ある
いは油８のなかに脱水ケーキ５が懸濁したサスペ
ンジヨン状となつてしまい、気固系の流動層を形
成できなくなるので、流動層乾燥機によつて乾燥
することが難しくなる。本発明者らの実験結果に
よれば、Wo／Wc＝0.2〜1.0程度が適当な値であ
つた。 The addition rate of oil 8 in the present invention is set so that Wo/Wc≦2.0, where Wc (Kg) is the dry solid weight of dehydrated cake 5 and Wo (Kg) is the amount of oil 8 added. It is preferable to do so. In other words, if the amount of oil 8 added is too large, the result will be a slurry or a suspension in which the dehydrated cake 5 is suspended in the oil 8, making it impossible to form a gas-solid fluidized bed. It becomes difficult to dry depending on the machine. According to the experimental results of the present inventors, an appropriate value is Wo/Wc of approximately 0.2 to 1.0.
かくして油８と混合された含油脱水ケーキ１１
は、必要ならば適当な造粒方法で造粒されたの
ち、ブロワ１３によつて過熱スチーム１２を流動
化用ガスとして供給する流動層乾燥機１０に供給
して流動層乾燥を行う。流動層乾燥機１０に含油
脱水ケーキ１１の流動化用ガスとして供給する過
熱スチーム１２の温度は、油８があまり揮散しな
い程度にし、例えば重油を使用した場合には150
〜200℃程度が適当である。このようにして流動
層乾燥機１０において含油脱水ケーキ１１中の水
分は蒸発除去され、含水率１０％以下となつた含
油乾燥物１４が溢流管１５より溢流し、貯留槽１
６に貯留される。 Oil-impregnated dehydrated cake 11 thus mixed with oil 8
is granulated by an appropriate granulation method if necessary, and then supplied by a blower 13 to a fluidized bed dryer 10 which supplies superheated steam 12 as a fluidizing gas to perform fluidized bed drying. The temperature of the superheated steam 12 supplied to the fluidized bed dryer 10 as a gas for fluidizing the oil-containing dehydrated cake 11 is set to such a level that the oil 8 does not volatilize much. For example, when heavy oil is used, the temperature is set to 150
A temperature of ~200°C is appropriate. In this way, the moisture in the oil-impregnated dehydrated cake 11 is removed by evaporation in the fluidized bed dryer 10, and the oil-impregnated dried material 14 whose moisture content is 10% or less overflows from the overflow pipe 15 and is transferred to the storage tank 1.
6 is stored.
また、前述したように、脱水ケーキ５に少量の
難揮発性の油８を混合してから流動層乾燥を行う
ことにより、油８を添加しない場合に乾燥物から
激しいダストが発生するような低含水率にまで乾
燥しても、油８はほとんど蒸発せずに固形物と共
に残留共存するので、油８がダスト化抑制剤の役
割を果す結果、ダストが発生しないことが認めら
れた。しかも、含油乾燥物１４中に油８が適度な
量で含まれているから、含油乾燥物１４の発熱量
は5000Kcal／Kg乾燥物以上と高く、理想的な固
形燃料としての性状を示す。また、油は腐蝕防止
剤としての働きを示すため、流動層乾燥機１０及
び過熱器１７の内壁面の腐蝕を防止できる。 In addition, as mentioned above, by mixing a small amount of hardly volatile oil 8 with the dehydrated cake 5 and performing fluidized bed drying, it is possible to reduce the amount of dust that would otherwise be generated from the dried product if no oil 8 was added. Even when dried to a moisture content, Oil 8 hardly evaporates and remains and coexists with the solid matter, so it was found that Oil 8 plays the role of a dusting inhibitor, and as a result, no dust is generated. Furthermore, since the oil 8 is contained in an appropriate amount in the oil-containing dry product 14, the calorific value of the oil-containing dry product 14 is as high as 5000 Kcal/Kg dry product or more, and exhibits properties as an ideal solid fuel. Furthermore, since oil acts as a corrosion inhibitor, corrosion of the inner wall surfaces of the fluidized bed dryer 10 and the superheater 17 can be prevented.
なお、流動層乾燥機１０に供給する含油脱水ケ
ーキ１１は、粒状化されている方が効率よく乾燥
が行われるが、流動層乾燥機として層内に機械的
撹拌翼を備えて、乾燥と造粒を同時に行うタイプ
のものが便利である。 Note that the oil-impregnated dehydrated cake 11 supplied to the fluidized bed dryer 10 can be dried more efficiently if it is granulated. It is convenient to use a type that processes grains at the same time.
流動層乾燥機１０より排出されるスチームの大
部分の排スチーム１８は、過熱器（熱交換器）１
７にて再び過熱スチーム１２となつてブロワー１
３により流動層乾燥機１０にリサイクルされる。
なお、過熱器１７の加熱源１９には、流動層乾燥
機１０から得られた固形燃料としての性状を示す
含油乾燥物１４を利用すればよい。 Most of the steam 18 discharged from the fluidized bed dryer 10 is transferred to a superheater (heat exchanger) 1.
At 7, it becomes superheated steam 12 again and blows into blower 1.
3 is recycled to the fluidized bed dryer 10.
Note that the oil-containing dried material 14 obtained from the fluidized bed dryer 10 and exhibiting properties as a solid fuel may be used as the heat source 19 of the superheater 17.
さらに、下水汚泥１を脱水機３で脱水する際
に、汚泥１を加熱することによつて脱水率を向上
させるもので、その加熱用に流動層乾燥機１０か
ら排出されるスチームの余剰スチーム２０を利用
する。例えば、脱水機３としてスクリユープレス
脱水機を使用し、そのスクリユーシヤフト２１内
に余剰スチーム２０を供給し、スクリユープレス
脱水機内に滞留している汚泥を加熱して脱水率を
向上させる。この余剰スチーム２０は凝縮されて
凝縮水２２となるが、凝縮水２２には油分が混入
してくるから、油水分離機２３において油分２４
を分離して再び油８として再使用するほか、分離
水２５が温水であることを利用して下水汚泥１の
加温に利用することが望ましい。 Furthermore, when the sewage sludge 1 is dehydrated by the dehydrator 3, the dewatering rate is improved by heating the sludge 1, and surplus steam 20 of the steam discharged from the fluidized bed dryer 10 is used for heating the sludge 1. Use. For example, a screw press dehydrator is used as the dehydrator 3, and excess steam 20 is supplied into the screw shaft 21 of the screw press dehydrator to heat the sludge staying in the screw press dehydrator to improve the dewatering rate. This surplus steam 20 is condensed and becomes condensed water 22, but since oil is mixed into the condensed water 22, the oil and water separator 23
In addition to separating the water and reusing it as oil 8, it is desirable to use the fact that the separated water 25 is hot water to heat the sewage sludge 1.
なお、２６は排スチーム１８の油分のドレンで
あり、これらの回収油も油８として再利用するこ
ととができる。 Note that 26 is a drain for the oil content of the exhaust steam 18, and these recovered oils can also be reused as oil 8.
以上述べたように本発明によれば、以下に列記
するようなきわめて有益なる効果を得ることがで
きる。
As described above, according to the present invention, extremely beneficial effects as listed below can be obtained.
従来、多大の経費をかけて処分せざるを得な
かつた有機性汚泥を、水分の少ない、発熱量高
く、着火性の優れた、燃料価値の高い固形燃料
とすることができ、各種産業に利用し得てその
省エネルギ化に貢献することができる。 Organic sludge, which conventionally had to be disposed of at great expense, can be turned into solid fuel with low moisture content, high calorific value, and excellent ignitability, which has high fuel value and can be used in various industries. This can contribute to energy saving.
流動層乾燥機からのダストの生成、流出がみ
られず、また悪臭ガスも排出されない。 There is no generation or outflow of dust from the fluidized bed dryer, and no foul-smelling gas is emitted.
流動層乾燥機、熱交換器等の内壁の腐蝕を防
止することができる。 Corrosion of the inner walls of fluidized bed dryers, heat exchangers, etc. can be prevented.
水蒸気の加熱源として、得られた含油乾燥物
を固形燃料として利用することができる。 The obtained oil-containing dry product can be used as a solid fuel as a steam heating source.
図面は本発明の一実施例を示す系統説明図であ
る。
１……下水汚泥、２……脱水助剤、３……脱水
機、４……脱水分離水、５……脱水ケーキ、６…
…テーパーコーン、７……ホツパ、８……油、９
……移送ポンプ、１０……流動層乾燥機、１１…
…含油脱水ケーキ、１２……過熱スチーム、１３
……ブロワ、１４……含油乾燥物、１５……溢流
管、１６……貯留槽、１７……過熱器、１８……
排スチーム、１９……加熱源、２０……余剰スチ
ーム、２１……スクリユーシヤフト、２２……凝
縮水。
The drawing is a system explanatory diagram showing an embodiment of the present invention. 1... Sewage sludge, 2... Dehydration aid, 3... Dehydrator, 4... Dehydrated separated water, 5... Dehydrated cake, 6...
... Taper cone, 7 ... Hotsupa, 8 ... Oil, 9
...Transfer pump, 10...Fluidized bed dryer, 11...
...Oil-impregnated dehydrated cake, 12...Superheated steam, 13
... Blower, 14 ... Oil-containing dry material, 15 ... Overflow pipe, 16 ... Storage tank, 17 ... Superheater, 18 ...
Exhaust steam, 19...heating source, 20...excess steam, 21...screw shaft, 22...condensed water.
Claims (1)
水し、得られた脱水ケーキに難揮発性の油を添加
したのち、該含油脱水ケーキを水蒸気を流動化用
ガスとして用い流動層乾燥を行つて含油乾燥物を
得ると共に、該流動層乾燥工程から排出される余
剰水蒸気を前記有機性汚泥の脱水工程の加熱源と
し利用することを特徴とする有機性汚泥の固形燃
料化方法。 ２ 前記難揮発性の油の添加量を、前記脱水ケー
キ中の固形物重量に対し重量比で２以下に設定す
るものである特許請求の範囲第１項記載の有機性
汚泥の固形燃料化方法。 ３ 前記流動層乾燥が、層内を機械的に撹拌して
乾燥と同時に造粒を行うものである特許請求の範
囲第１項又は第２項記載の有機性汚泥の固形燃料
化方法。[Claims] 1. Adding a dehydration aid to organic sludge and dehydrating it under heating, adding a hardly volatile oil to the resulting dehydrated cake, and then using the oil-containing dehydrated cake to fluidize water vapor. A method for producing organic sludge, characterized in that it is used as a gas and subjected to fluidized bed drying to obtain an oil-containing dried product, and the excess water vapor discharged from the fluidized bed drying step is used as a heating source in the dehydration step of the organic sludge. Method of converting solid fuel. 2. The method for converting organic sludge into solid fuel according to claim 1, wherein the amount of the hardly volatile oil added is set at a weight ratio of 2 or less to the weight of solids in the dehydrated cake. . 3. The method for converting organic sludge into solid fuel according to claim 1 or 2, wherein the fluidized bed drying is performed by mechanically stirring the inside of the bed to perform drying and granulation simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59123833A JPS614795A (en) | 1984-06-18 | 1984-06-18 | Method for producing solid fuel from organic sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59123833A JPS614795A (en) | 1984-06-18 | 1984-06-18 | Method for producing solid fuel from organic sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS614795A JPS614795A (en) | 1986-01-10 |
| JPH0223598B2 true JPH0223598B2 (en) | 1990-05-24 |
Family
ID=14870500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59123833A Granted JPS614795A (en) | 1984-06-18 | 1984-06-18 | Method for producing solid fuel from organic sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS614795A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01262990A (en) * | 1988-04-12 | 1989-10-19 | Mitani Sekisan Co Ltd | Apparatus and method for treating muddy water |
| EP0625921B1 (en) * | 1992-02-12 | 1996-03-27 | Henkel Kommanditgesellschaft auf Aktien | Process for producing granulates useful as wetting, washing and/or cleaning agents |
| JP2009007563A (en) * | 2007-05-31 | 2009-01-15 | Kumamoto Univ | Organic waste fuel and manufacturing method for it |
| WO2017043232A1 (en) * | 2015-09-07 | 2017-03-16 | 水ｉｎｇ株式会社 | Dehydration device, dehydration system, and dehydration method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57139190A (en) * | 1981-02-24 | 1982-08-27 | Waeidou Kk | Pelletized solid fuel |
-
1984
- 1984-06-18 JP JP59123833A patent/JPS614795A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57139190A (en) * | 1981-02-24 | 1982-08-27 | Waeidou Kk | Pelletized solid fuel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS614795A (en) | 1986-01-10 |
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