JP2001300586A - Organic sludge treating system - Google Patents
Organic sludge treating systemInfo
- Publication number
- JP2001300586A JP2001300586A JP2000122107A JP2000122107A JP2001300586A JP 2001300586 A JP2001300586 A JP 2001300586A JP 2000122107 A JP2000122107 A JP 2000122107A JP 2000122107 A JP2000122107 A JP 2000122107A JP 2001300586 A JP2001300586 A JP 2001300586A
- Authority
- JP
- Japan
- Prior art keywords
- organic sludge
- sludge treatment
- organic
- tank
- sludge
- 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.)
- Granted
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、たとえば農漁村集
落終末汚泥処理に好適な有機汚泥処理システムに関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic sludge treatment system suitable for treating sludge at the end of an agricultural or fishing village, for example.
【０００２】[0002]
【従来の技術】近年、環境問題が大きくクローズアップ
され、わが国だけでなく地球規模での検討が叫ばれてい
る問題の一つとなっている。ところで、人間が生活して
いくうえで、莫大な量の有機性汚物が発生することは避
けがたい事実である。したがって、この有機性の汚物を
有害な廃棄物を出さずにいかにして効率よく処理するの
かが最大の課題である。2. Description of the Related Art In recent years, environmental problems have been greatly highlighted, and are one of the problems that are being studied not only in Japan but also on a global scale. By the way, it is an unavoidable fact that an enormous amount of organic waste is generated in human life. Therefore, the most important issue is how to efficiently treat this organic waste without producing harmful waste.
【０００３】しかしながら、従来の有機性汚物の処理方
法は、バキュームによる排出処分により貯留された汚物
を焼却或いはそのまま海、川等に投棄している場合が大
部分である。しかしながら、海、川等の汚染の原因とな
ったり、本来有機土壌肥料として還元できるはずの有機
物資源を廃棄してしまっていることになり、環境保護の
観点からも好ましくない事態が生じているのが現状であ
る。[0003] However, most of the conventional organic waste treatment methods involve incinerating or discarding the waste collected by vacuum discharge or disposal into the sea or river. However, it causes pollution of the sea and rivers and discards organic resources that could be reduced as organic soil fertilizer, which is not desirable from the viewpoint of environmental protection. Is the current situation.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記従来の
問題に鑑みなされたもので、その目的とするところは、
有害な廃棄物や悪臭を出さずに有機汚泥を効率よく最終
処理でき、たとえば比較的中小規模の農漁村集落終末汚
泥処理に好適な有機汚泥処理システムを提供することに
ある。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems.
It is an object of the present invention to provide an organic sludge treatment system that can efficiently finalize organic sludge without producing harmful wastes and bad odors, and is suitable for, for example, terminal sludge treatment of relatively small and medium-sized agricultural and fishing villages.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するた
め、本発明に係る有機汚泥処理システムは、貯留槽より
有機汚泥の原水を定量移送する手段と、凝集剤を供給す
る手段と、前記原水と前記凝集剤とを混合して凝集反応
させる手段と、該凝集反応手段によって得られる凝集汚
泥を脱水する手段と、該脱水手段によって得られる脱水
ケーキを微生物媒体により酸化分解し減量する有機汚泥
処理手段と、該有機汚泥処理手段にて発生する臭気を微
生物媒体により無臭化する脱臭手段とからなることを特
徴とする。また、本発明に係る有機汚泥処理システム
は、前記脱水手段によって得られる脱水ケーキを２段階
のシャッタ手段を備えた通路を通って前記有機汚泥処理
手段に投入することを特徴とする。また、本発明に係る
有機汚泥処理システムは、前記有機汚泥処理手段が、縦
方向の撹拌軸を有し且つ微生物媒体を充填した処理槽の
上部より前記脱水ケーキを投入して微生物媒体と撹拌混
合することを特徴とする。さらに、本発明に係る有機汚
泥処理システムは、前記脱水手段及び前記有機汚泥処理
手段でそれぞれ排出される排水を前記貯留槽に還流する
ことを特徴とする。In order to solve the above-mentioned problems, an organic sludge treatment system according to the present invention comprises: means for quantitatively transferring raw water of organic sludge from a storage tank; means for supplying a flocculant; Means for mixing and coagulating with the coagulant, means for dewatering the coagulated sludge obtained by the coagulation reaction means, and organic sludge treatment for oxidatively decomposing and reducing the dewatered cake obtained by the dewatering means using a microbial medium. Means and deodorizing means for deodorizing the odor generated by the organic sludge treatment means with a microorganism medium. Further, the organic sludge treatment system according to the present invention is characterized in that the dewatered cake obtained by the dewatering means is fed into the organic sludge treatment means through a passage having two-stage shutter means. Further, in the organic sludge treatment system according to the present invention, the organic sludge treatment means has a vertical stirring shaft and inputs the dehydrated cake from the upper part of the treatment tank filled with the microorganism medium, and stirs and mixes the microorganism sludge with the microorganism medium. It is characterized by doing. Further, the organic sludge treatment system according to the present invention is characterized in that the wastewater discharged by the dewatering unit and the organic sludge treatment unit is returned to the storage tank.
【０００６】[0006]
【発明の実施の形態】以下、図面を参照して、本発明の
実施の形態を説明する。図１は本発明に係る有機汚泥処
理システムのフローチャートであり、有機汚泥貯留槽か
ら凝集反応手段に至る過程を示し、図２は同じくフロー
チャートであり、脱水手段から脱臭手段に至る過程を示
している。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a flow chart of the organic sludge treatment system according to the present invention, showing a process from the organic sludge storage tank to the coagulation reaction means, and FIG. 2 is a flow chart similarly showing a process from the dehydration means to the deodorization means. .
【０００７】貯留槽１は処理すべき余剰汚泥を貯留する
もので、例えば農漁村集落より回収された汚泥を貯留す
る。該貯留槽１は、余剰汚泥貯留槽１Ａと余剰汚泥濃縮
貯留槽１Ｂとからなり、余剰汚泥貯留槽１Ａ内に設置し
た原水ポンプ２Ａは余剰汚泥貯留槽１Ａ内の汚泥をクッ
ションタンク３に導入するためのものであり、例えば１
日２回、１２時間毎にポンプアップする。また、余剰汚
泥濃縮貯留槽１Ｂ内に設置した原水ポンプ２Ｂは余剰汚
泥濃縮貯留槽１Ｂ内の汚泥を余剰汚泥貯留槽１Ａ内に導
入するためのものである。[0007] The storage tank 1 stores excess sludge to be treated, and stores, for example, sludge collected from agricultural and fishing villages. The storage tank 1 is composed of an excess sludge storage tank 1A and an excess sludge concentration storage tank 1B, and a raw water pump 2A installed in the excess sludge storage tank 1A introduces the sludge in the excess sludge storage tank 1A into the cushion tank 3. For example, 1
Pump up twice a day, every 12 hours. The raw water pump 2B installed in the excess sludge concentration storage tank 1B is for introducing the sludge in the excess sludge concentration storage tank 1B into the excess sludge storage tank 1A.
【０００８】撹拌機４付のクッションタンク３は、必要
処理量の汚泥を本処理システムに計量導入するためのタ
ンクで、貯留槽１より移送されてきた汚泥の一部は余剰
汚泥濃縮貯留槽１Ｂに戻しながら溢れないようにして、
常に一定量を送れるようにしている。汚泥供給ポンプ５
は、クッションタンク３より二連式凝集反応槽１２へ汚
泥を定量供給するためのポンプである。凝集剤タンク９
は、高分子カチオン系凝集剤を収容し、撹拌機１１で随
時撹拌しつつ、注入ポンプ１０により凝集反応槽１２内
に凝集剤を定量供給する。また、凝集補助剤タンク６
は、高分子アニオン系凝集剤を収容し、撹拌機８で随時
撹拌しつつ、注入ポンプ７により凝集反応槽１２内に凝
集剤を定量供給する。The cushion tank 3 with the stirrer 4 is a tank for metering and introducing a required amount of sludge into the present treatment system. Part of the sludge transferred from the storage tank 1 is a surplus sludge concentration storage tank 1B. So as not to overflow while returning to
We always send a certain amount. Sludge supply pump 5
Is a pump for quantitatively supplying sludge from the cushion tank 3 to the double coagulation reaction tank 12. Coagulant tank 9
Contains a polymer cationic coagulant, and supplies the coagulant in the coagulation reaction tank 12 by the injection pump 10 while stirring as needed with the stirrer 11. In addition, the coagulation aid tank 6
Contains a polymer anionic coagulant, and supplies the coagulant to the coagulation reaction tank 12 by the injection pump 7 while stirring with the stirrer 8 as needed.
【０００９】二連式凝集反応槽１２では、移送されてき
た汚泥原水とこれに注入されたカチオン系及びアニオン
系の凝集剤とを撹拌機１３Ａ，１３Ｂで混合撹拌するこ
とにより凝集反応させ、より大きいフロック（水分を含
んだ凝集汚泥）を形成させる。汚泥原水に対して通常５
０〜３００ｐｐｍ程度の添加量で凝集剤を添加する。こ
のように、移送されてきた汚泥原水に凝集剤を混合して
固液分離を促進し大きいフロックを形成させることで、
次の脱水工程での脱水効果を高めることができる。In the double-type coagulation reaction tank 12, the transferred sludge raw water and the cationic and anionic coagulants injected into the sludge raw water are mixed and stirred by the stirrers 13A and 13B to form a coagulation reaction. Form large flocs (coagulated sludge containing water). Usually 5 for raw sludge water
The flocculant is added in an amount of about 0 to 300 ppm. In this way, by mixing a flocculant into the transferred sludge raw water to promote solid-liquid separation and form large flocs,
The dehydration effect in the next dehydration step can be enhanced.
【００１０】次に、上記凝集反応槽１２内の凝集汚泥
は、スクリュープレス脱水機１４に導入される。ここ
で、洗浄水タンク１５よりポンプ１６で洗浄水を適量混
合しながら、凝集汚泥の脱水を行う。この脱水によっ
て、含水率９９％程度のフロックから含水率８５％程度
の脱水ケーキが生成される。生成された脱水ケーキは、
２段階のシャッタ手段を備えた通路３７を通って有機汚
泥処理装置１７に投入され、ここで微生物媒体により酸
化分解され減量される。この有機汚泥処理装置１７にて
発生する臭気は脱臭装置２０に導入し、ここで微生物媒
体により無臭化して大気中に放出する。なお、上記脱水
時に排出される濾液及び有機汚泥処理装置１７と脱臭装
置２０より排出されるドレインは余剰汚泥処理槽の脱離
液槽へ還流され、系外へは排出されない。Next, the coagulated sludge in the coagulation reaction tank 12 is introduced into a screw press dehydrator 14. Here, the coagulated sludge is dewatered while mixing an appropriate amount of the washing water with the pump 16 from the washing water tank 15. By this dehydration, a dewatered cake having a water content of about 85% is produced from a floc having a water content of about 99%. The generated dehydrated cake is
The sludge is introduced into the organic sludge treatment apparatus 17 through a passage 37 provided with a two-stage shutter means, where the sludge is oxidized and decomposed by a microbial medium and reduced. The odor generated in the organic sludge treatment device 17 is introduced into a deodorization device 20, where it is deodorized by a microorganism medium and released into the atmosphere. The filtrate discharged during the dehydration and the drain discharged from the organic sludge treatment device 17 and the deodorization device 20 are returned to the desorption liquid tank of the excess sludge treatment tank, and are not discharged out of the system.
【００１１】ここで、上記のシャッタ手段について説明
する。上述したように、スクリュープレス脱水機１４に
より生成された脱水ケーキは、２段階のシャッタ手段を
備えた通路３７を通って有機汚泥処理装置１７に投入さ
れる。この通路３７の上部には第１のシャッタ手段３
６、通路３７の下端には第２のシャッタ手段２４を備え
ている。第１のシャッタ手段３６はスクリュープレス脱
水機１４の出口と連結し、第２のシャッタ手段２４は有
機汚泥処理装置１７の上部投入口と連結している。第１
のシャッタ手段３６は、スクリュープレス脱水機１４に
より生成された脱水ケーキが一定量貯留したことをその
自重により検出して開放するように構成している。そし
て、脱水ケーキが通路３７内に送り込まれると第１のシ
ャッタ手段３６は再び閉じる。なお、第１のシャッタ手
段３６は一定時間毎に開放するように構成してもよい。
一方、第２のシャッタ手段２４は、第１のシャッタ手段
３６が開いてから所定時間経過後に開放する。第２のシ
ャッタ手段２４が開くことにより、通路３７内の脱水ケ
ーキは有機汚泥処理装置１７に投入される。なお、第２
のシャッタ手段２４は通路３７内にある脱水ケーキの自
重を検出して開放するようにし、第１のシャッタ手段３
６と特に連動させないような構成としてもよい。Here, the shutter means will be described. As described above, the dewatered cake generated by the screw press dewatering machine 14 is fed into the organic sludge treatment device 17 through the passage 37 having two-stage shutter means. The first shutter means 3 is located above the passage 37.
6. The second shutter means 24 is provided at the lower end of the passage 37. The first shutter means 36 is connected to the outlet of the screw press dewatering machine 14, and the second shutter means 24 is connected to the upper inlet of the organic sludge treatment device 17. First
The shutter means 36 is configured to detect that a certain amount of the dewatered cake generated by the screw press dewatering machine 14 has been stored by its own weight and open it. When the dehydrated cake is sent into the passage 37, the first shutter means 36 is closed again. Note that the first shutter means 36 may be configured to open at regular intervals.
On the other hand, the second shutter means 24 opens after a lapse of a predetermined time from the opening of the first shutter means 36. When the second shutter means 24 is opened, the dewatered cake in the passage 37 is charged into the organic sludge treatment device 17. The second
The shutter means 24 detects the self-weight of the dewatered cake in the passage 37 and opens it, and the first shutter means 3
6 may not be interlocked.
【００１２】次に、上述の有機汚泥処理装置１７及び脱
臭装置２０についてさらに詳しく説明する。図３は有機
汚泥処理装置１７の内部構造を示す断面図である。同図
に示すとおり、有機汚泥処理装置１７は、その処理槽の
中心に縦軸の撹拌軸２２、つまり撹拌軸２２を垂直に設
置し、撹拌軸２２には螺旋状の撹拌ラセン２３を形成し
ている。撹拌軸２２の下端部には、撹拌ラセン２３の外
径より長い掻寄せ棒２７を水平に取付け、これに掻寄せ
板を斜めに固定している。処理槽上部の撹拌軸から少し
離れた位置には前述の脱水ケーキを投入する投入口とな
る第２のシャッタ手段２４を配し、さらに処理槽上部を
貫通する散水管２５と排気管２６を取付けている。ま
た、処理槽の底部には、排水管２８と給気管２９を埋設
し、給気管２９の端には加温装置１９を介して給気ブロ
ア１８を連結し、排水管２８はそのまま排水ドレンに連
結している。Next, the organic sludge treatment device 17 and the deodorizing device 20 will be described in more detail. FIG. 3 is a sectional view showing the internal structure of the organic sludge treatment device 17. As shown in the figure, the organic sludge treatment device 17 has a vertical stirring shaft 22, that is, a stirring shaft 22 installed vertically in the center of the treatment tank, and a spiral stirring spiral 23 formed on the stirring shaft 22. ing. At the lower end of the stirring shaft 22, a scraping rod 27 longer than the outer diameter of the stirring spiral 23 is horizontally mounted, and the scraping plate is fixed diagonally to this. At a position slightly away from the stirring shaft at the upper part of the processing tank, a second shutter means 24 serving as an inlet for charging the above-mentioned dewatered cake is arranged, and a sprinkling pipe 25 and an exhaust pipe 26 penetrating the upper part of the processing tank are attached. ing. Further, a drain pipe 28 and an air supply pipe 29 are buried at the bottom of the treatment tank, and an air supply blower 18 is connected to an end of the air supply pipe 29 via a heating device 19, and the drain pipe 28 is directly used as a drain. Connected.
【００１３】次に、上記有機汚泥処理装置１７の作用を
説明する。処理槽内に、あらかじめ高温好気性微生物を
培養した木質細片からなる微生物媒体Ｇをほぼ８分目か
ら９分目に達するまで充填している。処理槽上部の投入
口より投入された有機汚泥の脱水ケーキは、撹拌ラセン
２３によって微生物媒体Ｇと撹拌混合される。木質細片
はその組織に無数の細孔を有し、高温好気性微生物はそ
の細孔に寄留してコロニーを形成し、有機汚泥Ｗに接し
て所定の温度湿度状態に置かれると、木質細片から出て
有機汚泥Ｗを腐食し、発酵してガスと水分に分解して減
量化する。Next, the operation of the organic sludge treatment apparatus 17 will be described. The treatment tank is filled with a microbial medium G consisting of wood fragments in which high-temperature aerobic microorganisms have been cultured in advance until the time reaches approximately 8 to 9 minutes. The dewatered cake of the organic sludge fed from the inlet at the top of the treatment tank is stirred and mixed with the microorganism medium G by the stirring spiral 23. The woody strip has numerous pores in its tissue, and the high-temperature aerobic microorganisms stay at the pores to form a colony. It comes out of the piece and corrodes the organic sludge W, fermented and decomposed into gas and moisture to reduce the weight.
【００１４】なお、混合された有機汚泥Ｗと微生物媒体
Ｇは、撹拌ラセン２３により底の方から上方へ押上げら
れ、撹拌ラセン２３と処理槽内壁との間を徐々に下降
し、下方の掻寄せ棒２７により中心の撹拌軸２２側に掻
寄せられて再度撹拌ラセン２３により上方に押上げられ
ていく。こうして有機汚泥Ｗと微生物媒体Ｇは処理槽内
で均一に混合され、効率的に減量化が進む。The mixed organic sludge W and the microbial medium G are pushed upward from the bottom by the stirring spiral 23, gradually descend between the stirring spiral 23 and the inner wall of the processing tank, and the lower It is scraped toward the center of the stirring shaft 22 by the pulling bar 27 and is pushed up again by the stirring spiral 23. In this way, the organic sludge W and the microbial medium G are uniformly mixed in the treatment tank, and the weight reduction proceeds efficiently.
【００１５】また、微生物媒体Ｇの高温好気性微生物の
活動を促進させるため、図示しない温湿度センサの検出
値に基づき、散水管２５、給気ブロア１８、加温装置１
９の運転を制御し、処理槽内の温度湿度を所定の範囲、
例えば温度３０℃以上、湿度４０〜５５％で活発に活動
する菌を採用した場合はこのような温湿度範囲に調整す
る。Further, in order to promote the activity of the high-temperature aerobic microorganisms in the microorganism medium G, the sprinkling pipe 25, the air supply blower 18, the heating device 1
9 to control the temperature and humidity in the processing tank within a predetermined range,
For example, when bacteria that are active at a temperature of 30 ° C. or higher and a humidity of 40 to 55% are employed, the temperature and humidity are adjusted to such a range.
【００１６】上述のように、脱水ケーキを２段階のシャ
ッタ手段を設けた通路３７を通して有機汚泥処理装置１
７内に投入するようにしているため、連続的に処理を行
う場合でも、外気が処理槽内に直接取り込まれることが
なく、給気ブロア１８と排気ファン２１による処理槽内
の給気と排気のバランスの調整や、処理槽内の温湿度の
調整が安定した状態で行えるので、減量化処理の効率ア
ップを図ることが出来る。もし、処理槽の脱水ケーキの
投入口が外気に対してオープンだと、外気の取入量や外
気の温湿度の影響を受けるため、処理槽内の給気と排気
のバランスや温湿度の調整がしにくくなるという不具合
が生じる。また、１段階のシャッタ手段を設けた場合、
ほとんど連続的に汚泥を投入して汚泥処理を行うとき
は、ほとんどオープン状態と同じであり同様の不具合が
生じる。As described above, the dewatered cake is passed through the passage 37 provided with two-stage shutter means, and the organic sludge treatment apparatus 1
7, the outside air is not directly taken into the processing tank even when the processing is performed continuously, and the air supply and exhaust in the processing tank by the air supply blower 18 and the exhaust fan 21 are performed. Since the adjustment of the balance and the adjustment of the temperature and humidity in the processing tank can be performed in a stable state, the efficiency of the reduction processing can be improved. If the dewatering cake inlet of the processing tank is open to the outside air, it will be affected by the amount of outside air taken in and the temperature and humidity of the outside air. The problem that it becomes difficult to remove occurs. When a one-stage shutter is provided,
When sludge treatment is performed with sludge being supplied almost continuously, it is almost the same as the open state, and the same problem occurs.
【００１７】そして、処理槽内にて発生する臭気は、排
気管２６を通って脱臭装置２０に導かれる。図４は上記
脱臭装置２０の内部構造を示す断面図である。すなわ
ち、脱臭装置２０は、手前から通気室Ａ、第１脱臭室
Ｃ、通気室Ｄ、第２脱臭室Ｆの順に４つの部屋を並列に
形成している。通気室Ａと第１脱臭室Ｃとの間及び通気
室Ｄと第２脱臭室Ｆとの間は天井から第１の仕切板３０
及び第３の仕切板３２をそれぞれ設けてこれらを仕切る
とともに底部は連通し、第１脱臭室Ｃ及び第２脱臭室Ｆ
の底部にはそれぞれ多孔床板３３、３４を設置してい
る。また、第１脱臭室Ｃと通気室Ｄとの間は床面から垂
直に第２の仕切板３１を立設してこれらを仕切るととも
に上部を連通している。第１脱臭室Ｃ及び第２脱臭室Ｆ
の床下はそれぞれ排水受皿Ｂ、Ｅを形成している。そし
て、第１脱臭室Ｃと第２脱臭室Ｆ内には、あらかじめ低
温嫌気性微生物を培養した木質細片からなる微生物媒体
を所定の高さまで充填しておく。The odor generated in the processing tank is led to the deodorizing device 20 through the exhaust pipe 26. FIG. 4 is a sectional view showing the internal structure of the deodorizing device 20. That is, the deodorizing apparatus 20 has four rooms in parallel in the order of the ventilation chamber A, the first deodorization chamber C, the ventilation chamber D, and the second deodorization chamber F from the near side. The first partition plate 30 extends from the ceiling between the ventilation room A and the first deodorization room C and between the ventilation room D and the second deodorization room F.
And a third partition plate 32 for partitioning them, and communicating with the bottom, the first deodorizing chamber C and the second deodorizing chamber F
Are provided with perforated floor plates 33 and 34, respectively. In addition, a second partition plate 31 is erected vertically from the floor surface between the first deodorizing chamber C and the ventilation chamber D to partition them and communicate with the upper part. First deodorizing room C and second deodorizing room F
Under the floor form drainage trays B and E, respectively. Then, the first deodorizing chamber C and the second deodorizing chamber F are filled in advance with a microbial medium made of a woody strip obtained by culturing low-temperature anaerobic microorganisms to a predetermined height.
【００１８】本脱臭装置の特徴は、上記のごとく脱臭室
を並列して２段に配置するとともに、後段の第２脱臭室
Ｆの平面積を前段の第１脱臭室Ｃの平面積よりも大きく
なるように構成し、さらに前述の有機汚泥処理装置１７
から排出する排気を最初に通気室Ａの上部取入口３５よ
り装置内へ取り入れるように構成したことである。The deodorizing apparatus is characterized in that the deodorizing chambers are arranged in two stages in parallel as described above, and the plane area of the second deodorizing chamber F at the rear is larger than the plane area of the first deodorizing chamber C at the front. And the organic sludge treatment apparatus 17 described above.
First, exhaust gas discharged from the apparatus is introduced into the apparatus through the upper inlet 35 of the ventilation chamber A.
【００１９】このような構成において、有機汚泥処理装
置１７の処理槽から排出される臭気を帯びた排気は、脱
臭装置２０の取入口３５へ直接入り、排気ファン２１で
吸引することで、通気室Ａ、排水受皿Ｂ、第１脱臭室
Ｃ、通気室Ｄ、排水受皿Ｅ、第２脱臭室Ｆ内を順に通過
していく。すなわち、この排気は通気室Ａを通過し、排
水受皿Ｂを経由し、多孔床板３３を通過して、第１脱臭
室Ｃの下部から入り第１脱臭室Ｃの微生物媒体中を下方
から上方に通過していく。この過程で排気中の臭気は一
部分解される。次いで、この排気は通気室Ｄを通過し、
排水受皿Ｅを経由し、多孔床板３４を通過して第２脱臭
室Ｆに移り、第２脱臭室Ｆの微生物媒体中を下方から上
方に通過していく。残存臭気はこの段階で分解され、臭
気を取り除いた排気となって排気口から機外へ排出され
る。In such a configuration, the odorous exhaust gas discharged from the treatment tank of the organic sludge treatment device 17 directly enters the intake port 35 of the deodorization device 20 and is sucked by the exhaust fan 21 to form a ventilation chamber. A, the drain pan B, the first deodorizing chamber C, the ventilation chamber D, the drain pan E, and the second deodorizing chamber F pass in order. That is, this exhaust gas passes through the ventilation chamber A, passes through the drainage tray B, passes through the perforated floor plate 33, enters from the lower part of the first deodorizing chamber C, and passes through the microbial medium of the first deodorizing chamber C from below to above. Go through. In this process, the odor in the exhaust gas is partially decomposed. This exhaust then passes through the ventilation chamber D,
After passing through the drainage tray E, passing through the perforated floor plate 34 and moving to the second deodorizing chamber F, it passes through the microbial medium of the second deodorizing chamber F from below to above. The residual odor is decomposed at this stage, and is exhausted from the exhaust port as exhaust gas from which the odor has been removed.
【００２０】第１脱臭室Ｃ及び第２脱臭室Ｆでは、それ
ぞれ下部から排気を取り入れ、上方に排出するようにし
ている。排気が脱臭室内を上方から下方に抜けるように
する構成では、微生物媒体密度が大となって通気抵抗が
大きくなる虞があるが、上記構成ではこのような欠点を
解消できる。In the first deodorizing chamber C and the second deodorizing chamber F, exhaust gas is taken in from the lower part and discharged upward. In a configuration in which the exhaust gas flows downward from above in the deodorizing chamber, there is a possibility that the density of the microorganism medium is increased and the ventilation resistance is increased. However, the above configuration can solve such a drawback.
【００２１】以上のような有機汚泥処理システムは、有
害な廃棄物や悪臭を出さずに有機汚泥を効率よく最終処
理できる。そして、有機汚泥は酸化分解により減量化さ
れ、その結果物は土中に還元して有機土壌肥料として利
用でき、有機物資源のリサイクルを実現できる。なお、
上述の有機汚泥処理装置１７及び脱臭装置２０の内部構
成については、その一例を図３及び図４に示したもので
あり、本発明の有機汚泥処理システムにおいて、これら
の構成に勿論限定されるわけではない。The organic sludge treatment system as described above can efficiently and finally treat organic sludge without producing harmful wastes and bad odors. Then, the organic sludge is reduced by oxidative decomposition, and the resulting product is reduced to the soil and can be used as an organic soil fertilizer, thereby realizing recycling of organic resources. In addition,
The internal configuration of the organic sludge treatment device 17 and the deodorizing device 20 described above is an example shown in FIGS. 3 and 4, and the organic sludge treatment system of the present invention is not limited to these configurations. is not.
【００２２】[0022]
【発明の効果】以上詳細に説明したように、本発明に係
る有機汚泥処理システムによれば、有害な廃棄物や悪臭
を出さずに有機汚泥を効率よく最終処理できるととも
に、最終処理した物は有機土壌肥料として利用でき、有
機物資源のリサイクルを実現できるので、深刻化しつつ
ある環境問題を解決する一方策ともなりうるものであ
る。このような有機汚泥処理システムは、たとえば比較
的中小規模の農漁村集落終末汚泥処理に好適である。As described above in detail, according to the organic sludge treatment system according to the present invention, the organic sludge can be efficiently subjected to the final treatment without producing harmful wastes and bad odors, and the final treated material can be used as the final product. Since it can be used as an organic soil fertilizer and can realize the recycling of organic resources, it can be a measure to solve the growing environmental problems. Such an organic sludge treatment system is suitable for, for example, the disposal of sludge at the end of a relatively small or medium-sized agricultural and fishing village.
【００２３】また、本発明に係る有機汚泥処理システム
によれば、上記脱水手段によって得られる脱水ケーキを
２段階のシャッタ手段を備えた通路を通って有機汚泥処
理手段に投入することにより、連続処理を行っても、有
機汚泥処理槽内の給気と排気のバランスや温湿度の調整
を安定させ、処理効率の向上を図れる。According to the organic sludge treatment system of the present invention, the dewatered cake obtained by the dewatering means is fed into the organic sludge treatment means through a passage provided with two-stage shutter means, whereby continuous treatment is performed. , The balance between air supply and exhaust in the organic sludge treatment tank and the adjustment of temperature and humidity can be stabilized, and the treatment efficiency can be improved.
【００２４】また、本発明に係る有機汚泥処理システム
によれば、有機汚泥処理手段が、縦方向の撹拌軸を有し
且つ微生物媒体を充填した処理槽の上部より脱水ケーキ
を投入して微生物媒体と撹拌混合するので、処理槽内で
有機汚泥と微生物媒体が均一に混合され、効率的な減量
化を進められる。Further, according to the organic sludge treatment system of the present invention, the organic sludge treatment means has a vertical stirring shaft and throws in the dehydrated cake from the upper part of the treatment tank filled with the microorganism medium, thereby supplying the microorganism medium. The organic sludge and the microbial medium are uniformly mixed in the treatment tank, and efficient weight reduction can be promoted.
【００２５】さらに、本発明に係る有機汚泥処理システ
ムによれば、脱水手段及び有機汚泥処理手段でそれぞれ
排出される排水を貯留槽に還流することで、クローズド
システムを構成し、有機汚泥処理のより完全化を実現で
きる。Further, according to the organic sludge treatment system according to the present invention, the wastewater discharged by the dewatering means and the organic sludge treatment means is respectively returned to the storage tank to constitute a closed system, and the organic sludge treatment system is improved. Complete can be achieved.
【図１】本発明に係る有機汚泥処理システムのフローチ
ャートであり、有機汚泥貯留槽から凝集反応手段に至る
過程を示す。FIG. 1 is a flowchart of an organic sludge treatment system according to the present invention, showing a process from an organic sludge storage tank to a flocculation reaction means.
【図２】同じくフローチャートであり、脱水手段から脱
臭手段に至る過程を示す。FIG. 2 is a flowchart similarly showing a process from dehydration means to deodorization means.
【図３】有機汚泥処理装置の内部構造を示す断面図であ
る。FIG. 3 is a sectional view showing an internal structure of the organic sludge treatment device.
【図４】脱臭装置の内部構造を示す断面図である。FIG. 4 is a sectional view showing the internal structure of the deodorizing device.
１ 貯留槽 １Ａ 余剰汚泥貯留槽 １Ｂ 余剰汚泥濃縮貯留槽 ２Ａ，２Ｂ 原水ポンプ ３ クッションタンク ４ 攪拌機 ５ 汚泥供給ポンプ ６ 凝集補助剤タンク ７、１０ 凝集剤ポンプ ８、１１ 攪拌機 ９ 凝集剤タンク １２ 二連式凝集反応槽 １３Ａ，１３Ｂ 攪拌機 １４ スクリュープレス脱水機 １５ 洗浄水タンク １６ 洗浄水ポンプ １７ 有機汚泥処理装置 １８ 給気ブロア １９ 加温装置 ２０ 脱臭装置 ２１ 排気ファン ２２ 攪拌軸 ２３ 攪拌ラセン ２４ 第２のシャッタ手段 ２５ 散水管 ２６ 排気管 ２７ 掻寄せ棒 ２８ 排水管 ２９ 給気管 ３５ 排気取入口 ３６ 第１のシャッタ手段 ３７ 通路 DESCRIPTION OF SYMBOLS 1 Storage tank 1A Excess sludge storage tank 1B Excess sludge concentration storage tank 2A, 2B Raw water pump 3 Cushion tank 4 Stirrer 5 Sludge supply pump 6 Coagulant auxiliary agent tank 7, 10 Coagulant pump 8, 11 Stirrer 9 Coagulant tank 12 Duplex Coagulation reaction tank 13A, 13B Stirrer 14 Screw press dehydrator 15 Wash water tank 16 Wash water pump 17 Organic sludge treatment device 18 Supply air blower 19 Heating device 20 Deodorizing device 21 Exhaust fan 22 Stirring shaft 23 Stirring spiral 24 Second Shutter means 25 Water sprinkling pipe 26 Exhaust pipe 27 Scavenging rod 28 Drain pipe 29 Air supply pipe 35 Exhaust intake 36 First shutter means 37 Passage
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０２Ｆ 11/14 Ｆターム(参考） 4D002 AB02 AC10 BA17 CA01 CA07 DA59 EA01 EA03 4D059 AA00 BA03 BA22 BA25 BA27 BA56 BE26 BE57 BE59 BE60 BJ02 BK06 CA16 CB09 CB17 CB18 CC01 DB11 DB33 EA06 EA20 EB06 EB15 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C02F 11/14 F term (Reference) 4D002 AB02 AC10 BA17 CA01 CA07 DA59 EA01 EA03 4D059 AA00 BA03 BA22 BA25 BA27 BA56 BE26 BE57 BE59 BE60 BJ02 BK06 CA16 CB09 CB17 CB18 CC01 DB11 DB33 EA06 EA20 EB06 EB15
Claims (4)
る手段と、凝集剤を供給する手段と、前記原水と前記凝
集剤とを混合して凝集反応させる手段と、該凝集反応手
段によって得られる凝集汚泥を脱水する手段と、該脱水
手段によって得られる脱水ケーキを微生物媒体により酸
化分解し減量する有機汚泥処理手段と、該有機汚泥処理
手段にて発生する臭気を微生物媒体により無臭化する脱
臭手段とからなることを特徴とする有機汚泥処理システ
ム。1. A means for quantitatively transferring raw water of organic sludge from a storage tank, a means for supplying a flocculant, a means for mixing said raw water and said flocculant to cause a flocculation reaction, Means for dewatering the obtained coagulated sludge, organic sludge treatment means for oxidatively decomposing and reducing the dewatered cake obtained by the dehydration means with a microorganism medium, and deodorization for deodorizing the odor generated in the organic sludge treatment means with the microorganism medium And an organic sludge treatment system.
キを２段階のシャッタ手段を備えた通路を通って前記有
機汚泥処理手段に投入することを特徴とする請求項１記
載の有機汚泥処理システム。2. The organic sludge treatment system according to claim 1, wherein the dewatered cake obtained by said dewatering means is introduced into said organic sludge treatment means through a passage having two-stage shutter means.
軸を有し且つ微生物媒体を充填した処理槽の上部より前
記脱水ケーキを投入して微生物媒体と撹拌混合すること
を特徴とする請求項１又は２記載の有機汚泥処理システ
ム。3. The organic sludge treatment means has a vertical stirring shaft and inputs the dewatered cake from an upper part of a treatment tank filled with a microorganism medium, and agitates and mixes with the microorganism medium. Item 3. The organic sludge treatment system according to Item 1 or 2.
でそれぞれ排出される排水を前記貯留槽に還流すること
を特徴とする請求項１、２又は３記載の有機汚泥処理シ
ステム。4. The organic sludge treatment system according to claim 1, wherein the wastewater discharged by the dewatering unit and the organic sludge treatment unit is returned to the storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000122107A JP3611502B2 (en) | 2000-04-24 | 2000-04-24 | Organic sludge treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000122107A JP3611502B2 (en) | 2000-04-24 | 2000-04-24 | Organic sludge treatment system |
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| Publication Number | Publication Date |
|---|---|
| JP2001300586A true JP2001300586A (en) | 2001-10-30 |
| JP3611502B2 JP3611502B2 (en) | 2005-01-19 |
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ID=18632628
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007029810A (en) * | 2005-07-25 | 2007-02-08 | Kurita Water Ind Ltd | Method and apparatus for concentrating sludge |
| CN105601067A (en) * | 2015-11-13 | 2016-05-25 | 西安华诺石油技术开发有限公司 | Waste slurry conditioning agent system, and application method thereof |
-
2000
- 2000-04-24 JP JP2000122107A patent/JP3611502B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007029810A (en) * | 2005-07-25 | 2007-02-08 | Kurita Water Ind Ltd | Method and apparatus for concentrating sludge |
| CN105601067A (en) * | 2015-11-13 | 2016-05-25 | 西安华诺石油技术开发有限公司 | Waste slurry conditioning agent system, and application method thereof |
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| Publication number | Publication date |
|---|---|
| JP3611502B2 (en) | 2005-01-19 |
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