JPH06190399A - Method and equipment for treating dehydrated sludge - Google Patents
Method and equipment for treating dehydrated sludgeInfo
- Publication number
- JPH06190399A JPH06190399A JP4348370A JP34837092A JPH06190399A JP H06190399 A JPH06190399 A JP H06190399A JP 4348370 A JP4348370 A JP 4348370A JP 34837092 A JP34837092 A JP 34837092A JP H06190399 A JPH06190399 A JP H06190399A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- dehydrated sludge
- dehydrated
- incinerator
- hopper
- 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
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
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、脱水汚泥の処理方法お
よびその処理設備に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating dehydrated sludge and a treatment facility therefor.
【０００２】[0002]
【従来の技術と発明が解決しようとする課題】従来、下
水汚泥の処理方法として、下水処理場にて発生した汚泥
を、一旦、脱水し、この脱水汚泥の少なくとも一部を、
蒸気，熱媒油による間接加熱型ドライヤあるいは、直接
熱風乾燥するロータリドライヤ等により乾燥し、この乾
燥汚泥あるいはこの乾燥汚泥と脱水汚泥とを焼却炉で焼
却する方式がある。BACKGROUND OF THE INVENTION Conventionally, as a method for treating sewage sludge, the sludge generated at a sewage treatment plant is temporarily dehydrated, and at least a part of this dehydrated sludge is
There is a method in which an indirect heating dryer using steam or heat transfer oil, a rotary dryer that directly dries hot air, or the like is used to dry the sludge, or the dried sludge and the dehydrated sludge are incinerated in an incinerator.
【０００３】ところで、この方式においては、乾燥機
（ドライヤ）で脱水汚泥自身を９０〜１００℃、局部的
には約２００℃まで加熱しており、そのため発生する臭
気の濃度が高いので、燃焼方式や薬液洗浄方式等の複雑
な機器構成を持つ脱臭装置が必要であった。また、前記
乾燥機で発生する発生ガスはその温度が高いため、熱効
率が悪いばかりか、排気には種々の可燃成分が含有して
おり、そのため、発生ガスの爆発や燃焼の危険性も高
く、その取り扱いに熟練を要する等種々の課題を有して
いた。さらに、前記乾燥機は、一般に高価であり、１日
に発生する脱水汚泥量が数トン〜十数トンと少量な中小
規模の下水処理場においては、間欠運転を行うことが多
く、使用効率が悪い。そのため、特に、簡易で、安価な
乾燥機の出現が望まれていた。By the way, in this method, the dehydrated sludge itself is heated to 90 to 100 ° C., locally up to about 200 ° C. in a dryer, so that the concentration of odor generated is high, and therefore the combustion method is used. A deodorizing device having a complicated device configuration such as a chemical cleaning method was required. Further, since the generated gas generated by the dryer has a high temperature, not only the thermal efficiency is poor, but the exhaust gas contains various combustible components, so that the risk of explosion and combustion of the generated gas is high, There were various problems such as the handling required skill. Further, the dryer is generally expensive, and in a small-to-medium-sized sewage treatment plant in which the amount of dehydrated sludge generated in one day is as small as several tons to tens of tons, intermittent operation is often performed, resulting in high usage efficiency. bad. Therefore, in particular, the advent of a simple and inexpensive dryer has been desired.
【０００４】そこで、本発明者は、乾燥機について種々
検討の結果、好気性醗酵微生物の存在下で脱水汚泥を醗
酵させると、２４〜４８時間と時間はかかるものの、脱
水汚泥の水分を１０〜３０重量％まで低下した乾燥汚泥
とすることができ、しかも醗酵温度が比較的低くて臭気
濃度も低く、そのため、活性炭吸着塔のような簡易な脱
臭器で脱臭できることを見出した。したがって、本発明
は、乾燥機として、好気性醗酵微生物の存在下で脱水汚
泥と醗酵させる安価な醗酵機を使用した脱水汚泥の処理
方法およびその処理設備を提供することを目的とする。Therefore, as a result of various studies on the dryer, the present inventor fermented the dehydrated sludge in the presence of aerobic fermentation microorganisms, but it took 24 to 48 hours, but the water content of the dehydrated sludge was 10 to 10. It has been found that the dried sludge can be reduced to 30% by weight, the fermentation temperature is relatively low, and the odor concentration is low, so that it can be deodorized by a simple deodorizer such as an activated carbon adsorption tower. Therefore, an object of the present invention is to provide a method for treating dehydrated sludge using an inexpensive fermenter that ferments with dehydrated sludge in the presence of an aerobic fermenting microorganism as a dryer, and a treatment facility therefor.
【０００５】[0005]
【課題を解決するための手段】前記目的を達成するため
に、請求項１の発明では、脱水汚泥を好気性醗酵微生物
の存在下で醗酵処理して乾燥状態の汚泥とし、この乾燥
汚泥を単独あるいは脱水汚泥と混合して焼却炉で焼却す
るものである。また、請求項２の発明では、前記汚泥と
ともに、消石灰または炭酸カルシウムを前記焼却炉に投
入するものである。さらに、請求項３の発明では、好気
性醗酵微生物を使用する脱水汚泥の醗酵機と、この醗酵
機からの乾燥汚泥を貯留するホッパと、このホッパから
切り出される乾燥汚泥を焼却する流動層式焼却炉と、こ
の焼却炉からの排ガスから熱を回収する空気予熱器と、
前記醗酵機の排気系に設けた脱臭器と、前記焼却炉の排
ガス系に設けたセラミックフィルタ式集塵機と、から構
成したものである。In order to achieve the above object, in the invention of claim 1, the dehydrated sludge is subjected to a fermentation treatment in the presence of an aerobic fermenting microorganism to produce a dried sludge, and the dried sludge is used alone. Alternatively, it is mixed with dehydrated sludge and incinerated in an incinerator. In the invention of claim 2, slaked lime or calcium carbonate is charged into the incinerator together with the sludge. Further, in the invention of claim 3, a fermenter for dehydrated sludge using aerobic fermenting microorganisms, a hopper for storing the dried sludge from the fermenter, and a fluidized bed incineration for incinerating the dried sludge cut out from the hopper. A furnace and an air preheater that recovers heat from the exhaust gas from this incinerator,
The deodorizer provided in the exhaust system of the fermenter and the ceramic filter type dust collector provided in the exhaust system of the incinerator.
【０００６】[0006]
【実施例】つぎに、本発明の一実施例を図面にしたがっ
て説明する。図１は、本発明の脱水汚泥処理設備の概要
を示し、大略、醗酵機１，脱臭器７，脱水汚泥ホッパ１
０Ａ，乾燥汚泥ホッパ１０Ｂ，流動層式焼却炉１５，空
気予熱器１８および集塵機２２とからなる。そして、前
記醗酵機１は、２槽構造からなり、醗酵機１の外周には
下記する温水器９で加熱された温水を通過させて槽２を
外方から加温する温水帯３が設けられ、かつ、槽２内に
図示しないモータで回転駆動する撹拌機４を備えてい
る。なお、５は脱水汚泥Ｓの前記槽２内への供給口、６
は乾燥汚泥Ｓａの排出口、７は槽２内で発生した醗酵ガ
スを脱臭する脱臭器で、８は脱臭用の排気ファンであ
る。また、前記醗酵機１は単槽構造でも良く、その場合
は２台を並列に配置する。さらに、醗酵機１を加温する
装置は、ヒータ等でもかまわない。An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an outline of the dehydrated sludge treatment equipment of the present invention, which is roughly composed of a fermenter 1, a deodorizer 7, and a dehydrated sludge hopper 1.
0A, a dried sludge hopper 10B, a fluidized bed incinerator 15, an air preheater 18, and a dust collector 22. The fermentor 1 has a two-tank structure, and a fermenter 1 has an outer circumference provided with a hot water zone 3 for passing hot water heated by a water heater 9 to heat the tank 2 from the outside. In addition, an agitator 4 that is rotationally driven by a motor (not shown) is provided in the tank 2. In addition, 5 is a supply port of the dehydrated sludge S into the tank 2, 6
Is an outlet of the dried sludge Sa, 7 is a deodorizer for deodorizing the fermentation gas generated in the tank 2, and 8 is an exhaust fan for deodorization. Further, the fermentor 1 may have a single tank structure, in which case two units are arranged in parallel. Further, the device for heating the fermenter 1 may be a heater or the like.
【０００７】前記脱水汚泥ホッパ１０Ａは脱水汚泥Ｓを
貯えるもので、該ホッパ１０Ａ内の脱水汚泥Ｓは切出し
手段１１ａにより、下記する流動層式焼却炉１５内に供
給される。一方、前記乾燥汚泥ホッパ１０Ｂは前記醗酵
機１で乾燥された乾燥汚泥Ｓａと、外部から投入される
炭酸カルシウム（ＣａＣＯ3）を貯えるもので、該ホッ
パ１０Ｂ内の乾燥汚泥Ｓａと炭酸カルシウムは切出し手
段１１ｂにより撹拌されながら、流動層式焼却炉１５内
に供給されるようになっている。なお、ホッパ１０Ｂ内
の乾燥汚泥Ｓａは流動層式焼却炉１５へ供給されること
なく、外方に排出することも可能となっている。The dewatered sludge hopper 10A stores dewatered sludge S, and the dewatered sludge S in the hopper 10A is supplied into the fluidized bed incinerator 15 described below by the cutting means 11a. On the other hand, the dried sludge hopper 10B stores dried sludge Sa dried in the fermenter 1 and calcium carbonate (CaCO 3 ) input from the outside, and the dried sludge Sa and calcium carbonate in the hopper 10B are cut out. It is supplied to the fluidized bed type incinerator 15 while being stirred by the means 11b. The dried sludge Sa in the hopper 10B can be discharged to the outside without being supplied to the fluidized bed incinerator 15.
【０００８】前記流動層式焼却炉１５は、炉底１６が一
方向に傾斜しており、その最低部に底部排出口１６ａを
有するとともに、炉底１６の近傍には、下記する高温空
気を上方に噴出し、炉内に充填されたけい砂（流動媒
体）を流動させる多数の噴孔を有する噴出管１７を備
え、かつ、けい砂の充填高さを浅くして、流動用のブロ
ワ２１の負担を軽くしている。また、焼却炉１５の上部
側壁には空気予熱器１８が設けられ、流動用のブロワ２
１からの空気は、空気予熱器１８で予熱され、その高温
空気を前記噴出管１７から噴出する一方、前記温水器９
へ供給され、温水帯３への循環水を加熱するものであ
る。さらに、前記噴出管１７からの噴出空気により形成
される流動層上部が位置する炉壁には、バーナ１９と、
前記各ホッパ１０Ａ，１０Ｂから切出された脱水汚泥Ｓ
および／あるいは乾燥汚泥Ｓａの炉内投入機２０が設け
られている。The fluidized bed incinerator 15 has a furnace bottom 16 inclined in one direction, has a bottom discharge port 16a at the lowest portion thereof, and has the following high temperature air in the vicinity of the furnace bottom 16. Is equipped with a jetting pipe 17 having a large number of injection holes for jetting the silica sand (fluid medium) filled in the furnace and making the filling height of the silica sand shallow, The burden is lightened. Further, an air preheater 18 is provided on the upper side wall of the incinerator 15, and the blower 2 for flow is provided.
The air from No. 1 is preheated by the air preheater 18, and its hot air is ejected from the ejection pipe 17, while the water heater 9
Is supplied to the hot water zone 3 to heat the circulating water. Further, a burner 19 is provided on the furnace wall on which the upper part of the fluidized bed formed by the air jetted from the jet pipe 17 is located.
Dewatered sludge S cut out from each of the hoppers 10A and 10B
And / or an in-furnace charging device 20 for the dried sludge Sa is provided.
【０００９】前記集塵機２２は、多孔質セラミックパイ
プを使用した公知のセラミックフィルタ式のもので、前
記焼却炉１５の頂部排気口１６ｂからの排ガスとともに
排出される焼却灰を除去するもので、除去された後の排
ガスは排ガス用排気ファン２３で吸引され大気に放出さ
れる。一方、集塵された焼却灰等は間接冷却式灰排出機
２４で排出される。なお、２５は外気吸引弁で、前記排
気口１６ｂからの排ガスは高温であって、集塵機２２も
高級断熱耐火構造とせざるを得ないが、外気を吸引混合
させて排ガス温度を３００〜３５０℃に低下させること
により比較的安価で簡易な構造を可能としている。The dust collector 22 is of a well-known ceramic filter type using a porous ceramic pipe, and removes the incineration ash discharged together with the exhaust gas from the top exhaust port 16b of the incinerator 15, and is removed. The exhaust gas after being trapped is sucked by the exhaust gas exhaust fan 23 and released to the atmosphere. On the other hand, the collected incineration ash or the like is discharged by the indirect cooling ash discharger 24. Reference numeral 25 denotes an outside air suction valve, and the exhaust gas from the exhaust port 16b is at a high temperature, and the dust collector 22 has to have a high-grade adiabatic fireproof structure, but the outside air is sucked and mixed to bring the exhaust gas temperature to 300 to 350 ° C. By lowering it, a relatively inexpensive and simple structure is possible.
【００１０】つぎに、前記構成からなる脱水汚泥の処理
設備の操業について説明する。まず、下水処理場等で生
じた脱水汚泥Ｓの一部は脱水汚泥ホッパ１０Ａ内に貯え
られ、残りは前記醗酵機１の供給口５から槽２内へ投入
され、好気性醗酵微生物の存在下で、また下記する循環
水により間接加熱され、適当な温度下で撹拌機４により
撹拌されて約６０℃で２４〜４８時間かけて醗酵し、脱
水汚泥はその水分が１０〜３０重量％となり、乾燥汚泥
となる。なお、この醗酵中に生じる臭気を有する醗酵ガ
スは、前述のように、従来のものに比べて極めて低温で
あるため、活性炭吸着塔等の簡易な脱臭器７により脱臭
されて大気に放出される。Next, the operation of the dewatered sludge treatment facility of the above construction will be described. First, a part of the dehydrated sludge S generated in a sewage treatment plant or the like is stored in the dehydrated sludge hopper 10A, and the rest is put into the tank 2 through the supply port 5 of the fermenter 1 in the presence of aerobic fermentation microorganisms. In addition, it is indirectly heated by the circulating water described below, stirred by an agitator 4 at an appropriate temperature and fermented at about 60 ° C. for 24 to 48 hours, and the dehydrated sludge has a water content of 10 to 30% by weight. It becomes dry sludge. Since the fermentation gas having an odor generated during the fermentation is extremely low temperature as compared with the conventional one as described above, it is deodorized by the simple deodorizer 7 such as an activated carbon adsorption tower and released to the atmosphere. .
【００１１】前記のようにして、醗酵処理された乾燥汚
泥Ｓａは、乾燥汚泥ホッパ１０Ｂに投入される。また、
このホッパ１０Ｂには炭酸カルシウムが投入される。そ
して、前記両ホッパ１０Ａ，１０Ｂ内の脱水汚泥および
／または乾燥汚泥は炉内投入機２０により焼却炉１５に
投入されて焼却されるが、炉の操業開始時においては、
バーナ１９により炉内を約８００℃になるよう加熱する
とともに、空気予熱器１８を介して噴出管１７からの流
動用空気を約５００℃に予熱し、この流動用空気により
けい砂を流動させ、投入される前記脱水汚泥および／ま
たは乾燥汚泥を燃焼させる。この場合、投入する乾燥汚
泥量を調節して汚泥自身が自燃するようにし、自燃状態
となれば、前記バーナ１９を消火する。なお、炭酸カル
シウムは、炉内投入機２０に供給してもよい。The dried sludge Sa which has been subjected to the fermentation treatment as described above is put into the dried sludge hopper 10B. Also,
Calcium carbonate is put into this hopper 10B. Then, the dehydrated sludge and / or the dried sludge in both the hoppers 10A and 10B are put into the incinerator 15 by the in-core throwing machine 20 and incinerated, but at the start of the operation of the furnace,
While heating the inside of the furnace to about 800 ° C. by the burner 19, the flowing air from the ejection pipe 17 is preheated to about 500 ° C. via the air preheater 18, and the silica sand is caused to flow by this flowing air. The above-mentioned dehydrated sludge and / or dried sludge to be charged is burned. In this case, the amount of dry sludge to be fed is adjusted so that the sludge itself burns, and when it becomes a self-burning state, the burner 19 is extinguished. The calcium carbonate may be supplied to the furnace charging device 20.
【００１２】ところで、前記汚泥の燃焼にあたって、汚
泥中のいおう分，塩素分は、汚泥とともに投入される炭
酸カルシウムと高温下で反応し、硫酸カルシウムあるい
は塩化カルシウムとなって吸収除去され、ＳＯｘやＨＣ
ｌの発生が抑制される。なお、前記炭酸カルシウムに代
えて消石灰としてもよい。When burning the sludge, sulfur and chlorine in the sludge react with calcium carbonate added together with the sludge at a high temperature to form calcium sulfate or calcium chloride, which is absorbed and removed to remove SOx and HC.
Generation of 1 is suppressed. Note that slaked lime may be used instead of the calcium carbonate.
【００１３】一方、約８００℃の排ガスは空気予熱器１
８を通過し、３５０〜４５０℃とした後、頂部排気口１
６ｂから排出し、途中冷却空気と混合して３００〜３５
０℃となって集塵機２２に至り、排ガス中に含まれる焼
却灰等はここで回収され、間接冷却式灰排出機２４によ
り灰収納袋等に収納され、適宜処分される一方、排ガス
は排気ファン２３により大気に放出される。また、前記
空気予熱器１８で加熱された高温空気の一部は、温水器
９に至り、前記温水帯３の循環水を加熱する。ただし、
炉停止時においては、前記醗酵機１の各槽２は、図示し
ないヒータ等で加熱されるようになっている。さらに、
前述のように、醗酵機１での脱水汚泥の乾燥には、２４
〜４８時間要するため、各槽２に交互に脱水汚泥の投入
と乾燥汚泥の排出を行なう。なお、前記乾燥汚泥Ｓａは
一種の堆肥であるため、乾燥汚泥ホッパ１０Ｂから堆肥
として取り出してもよい。On the other hand, the exhaust gas at about 800 ° C. is the air preheater 1
After passing 8 to 350-450 ° C, top exhaust port 1
Discharged from 6b, mixed with cooling air on the way, 300-35
The temperature reaches 0 ° C., reaches the dust collector 22, and the incineration ash and the like contained in the exhaust gas is collected here and is stored in the ash storage bag or the like by the indirect cooling type ash discharger 24 and appropriately disposed, while the exhaust gas is exhaust fan. 23 is released to the atmosphere. Further, part of the high temperature air heated by the air preheater 18 reaches the water heater 9 and heats the circulating water in the hot water zone 3. However,
When the furnace is stopped, each tank 2 of the fermenter 1 is heated by a heater or the like (not shown). further,
As described above, 24 times is required to dry the dehydrated sludge in the fermenter 1.
Since it takes ~ 48 hours, the dehydrated sludge and the dried sludge are alternately charged into each tank 2. Since the dried sludge Sa is a kind of compost, it may be taken out from the dried sludge hopper 10B as compost.
【００１４】[0014]
【発明の効果】以上の説明で明らかなように、本発明の
脱水汚泥の処理方法によれば、脱水汚泥の乾燥に、好気
性醗酵微生物の存在下での醗酵処理で行なうため、低温
で処理でき、そのため、臭気レベルも低く、かつ、爆発
燃焼の危険性もなく、安価な処理方法とすることができ
る。また、汚泥とともに、炭酸カルシウムまたは消石灰
を、焼却炉に投入するようにすれば、焼却炉内でＳＯｘ
やＨＣｌを吸収除去でき、従来のように、水やアルカリ
溶液による排ガスの湿式洗浄が不要となり、特別の排ガ
ス処理装置が不要である。さらに、処理設備において
は、乾燥機として醗酵機を使用するため、臭気レベルが
低く、脱臭器としても、活性炭吸着塔のように簡易な設
備が適用できる。また、集麈機として多孔質セラミック
フィルタ式集麈機を使用するため、高温下で高効率の除
麈を行なうことができる等の効果を有する。As is apparent from the above description, according to the method for treating dehydrated sludge of the present invention, the dehydrated sludge is dried at a low temperature because it is fermented in the presence of an aerobic fermenting microorganism. Therefore, the odor level is low, and there is no danger of explosive combustion, and an inexpensive treatment method can be obtained. In addition, if calcium carbonate or slaked lime is put into the incinerator together with the sludge, SOx will be generated in the incinerator.
And HCl can be absorbed and removed, and the conventional wet cleaning of exhaust gas with water or an alkaline solution is not required, and a special exhaust gas treatment device is not required. Further, in the processing equipment, since a fermenter is used as a dryer, the odor level is low, and a simple equipment such as an activated carbon adsorption tower can be applied as a deodorizer. Further, since the porous ceramic filter type dust collector is used as the dust collector, there is an effect that high-efficiency dust removal can be performed at high temperature.
【図１】 本発明の脱水汚泥の処理設備を示す図。FIG. 1 is a diagram showing a dewatered sludge treatment facility of the present invention.
１…醗酵機、２…槽、４…撹拌機、７…脱臭器、９…温
水器、１０Ａ…脱水汚泥ホッパ、１０Ｂ…乾燥汚泥ホッ
パ、１１ａ，１１ｂ…切出し手段、１５…流動層式焼却
炉、１７…噴出管、１８…空気予熱器、１９…バーナ、
２２…集塵機、Ｓ…脱水汚泥、Ｓａ…乾燥汚泥。1 ... Fermenter, 2 ... Tank, 4 ... Stirrer, 7 ... Deodorizer, 9 ... Water heater, 10A ... Dewatered sludge hopper, 10B ... Dry sludge hopper, 11a, 11b ... Cutting means, 15 ... Fluidized bed type incinerator , 17 ... Jet pipe, 18 ... Air preheater, 19 ... Burner,
22 ... Dust collector, S ... Dewatered sludge, Sa ... Dry sludge.
Claims (3)
醗酵処理して乾燥状態の汚泥とし、この乾燥汚泥を単独
あるいは脱水汚泥と混合して焼却炉で焼却することを特
徴とする脱水汚泥の処理方法。1. A dehydrated sludge characterized in that the dehydrated sludge is subjected to fermentation treatment in the presence of an aerobic fermenting microorganism to produce a sludge in a dry state, and the dried sludge is burned alone or in combination with the dehydrated sludge in an incinerator. Processing method.
ルシウムを前記焼却炉に投入することを特徴とする前記
請求項１に記載の脱水汚泥の処理方法。2. The method for treating dehydrated sludge according to claim 1, wherein slaked lime or calcium carbonate is charged into the incinerator together with the sludge.
醗酵機と、この醗酵機からの乾燥汚泥を貯留するホッパ
と、このホッパから切り出される乾燥汚泥を焼却する流
動層式焼却炉と、この焼却炉からの排ガスから熱を回収
する空気予熱器と、前記醗酵機の排気系に設けた脱臭器
と、前記焼却炉の排ガス系に設けたセラミックフィルタ
式集塵機と、から構成したことを特徴とする脱水汚泥の
処理設備。3. A fermenter for dehydrated sludge using an aerobic fermenting microorganism, a hopper for storing the dried sludge from the fermenter, a fluidized bed incinerator for incinerating the dried sludge cut out from the hopper, and An air preheater for recovering heat from the exhaust gas from the incinerator, a deodorizer provided in the exhaust system of the fermenter, and a ceramic filter dust collector provided in the exhaust system of the incinerator, characterized in that Dewatered sludge treatment equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4348370A JPH06190399A (en) | 1992-12-28 | 1992-12-28 | Method and equipment for treating dehydrated sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4348370A JPH06190399A (en) | 1992-12-28 | 1992-12-28 | Method and equipment for treating dehydrated sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06190399A true JPH06190399A (en) | 1994-07-12 |
Family
ID=18396575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4348370A Pending JPH06190399A (en) | 1992-12-28 | 1992-12-28 | Method and equipment for treating dehydrated sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06190399A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009248039A (en) * | 2008-04-09 | 2009-10-29 | Mhi Environment Engineering Co Ltd | Sludge supplying method and sludge treating system |
| CN104193133A (en) * | 2014-05-23 | 2014-12-10 | 江苏双盈纺织科技有限公司 | An inclined type printing and dyeing sludge drying treatment system |
| CN104355521A (en) * | 2014-05-23 | 2015-02-18 | 江苏双盈纺织科技有限公司 | Printing and dyeing sludge drying equipment |
| CN108821528A (en) * | 2018-07-10 | 2018-11-16 | 中国石油集团川庆钻探工程有限公司 | Microbial treatment process and system for oil-containing sludge sand in oil field |
| CN110304805A (en) * | 2019-02-18 | 2019-10-08 | 联合瑞升（北京）科技有限公司 | A kind of sludge heat drying and the energy conserving system that is carbonized |
| CN111606549A (en) * | 2020-05-12 | 2020-09-01 | 广东中林建筑园林工程有限公司 | Municipal sludge drying method |
-
1992
- 1992-12-28 JP JP4348370A patent/JPH06190399A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009248039A (en) * | 2008-04-09 | 2009-10-29 | Mhi Environment Engineering Co Ltd | Sludge supplying method and sludge treating system |
| CN104193133A (en) * | 2014-05-23 | 2014-12-10 | 江苏双盈纺织科技有限公司 | An inclined type printing and dyeing sludge drying treatment system |
| CN104355521A (en) * | 2014-05-23 | 2015-02-18 | 江苏双盈纺织科技有限公司 | Printing and dyeing sludge drying equipment |
| CN108821528A (en) * | 2018-07-10 | 2018-11-16 | 中国石油集团川庆钻探工程有限公司 | Microbial treatment process and system for oil-containing sludge sand in oil field |
| CN108821528B (en) * | 2018-07-10 | 2024-03-19 | 中国石油天然气集团有限公司 | Microorganism treatment process and system for oil field oil-containing silt |
| CN110304805A (en) * | 2019-02-18 | 2019-10-08 | 联合瑞升（北京）科技有限公司 | A kind of sludge heat drying and the energy conserving system that is carbonized |
| CN110304805B (en) * | 2019-02-18 | 2023-04-21 | 北京智为蓝科技有限公司 | Sludge heat drying and carbonization energy-saving system |
| CN111606549A (en) * | 2020-05-12 | 2020-09-01 | 广东中林建筑园林工程有限公司 | Municipal sludge drying method |
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