JPH06117617A - Processing method of solid waste and waste water - Google Patents
Processing method of solid waste and waste waterInfo
- Publication number
- JPH06117617A JPH06117617A JP28342092A JP28342092A JPH06117617A JP H06117617 A JPH06117617 A JP H06117617A JP 28342092 A JP28342092 A JP 28342092A JP 28342092 A JP28342092 A JP 28342092A JP H06117617 A JPH06117617 A JP H06117617A
- Authority
- JP
- Japan
- Prior art keywords
- water
- steam
- exhaust gas
- cooling
- steam turbine
- 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
- 239000002351 wastewater Substances 0.000 title claims abstract description 20
- 239000002910 solid waste Substances 0.000 title claims description 10
- 238000003672 processing method Methods 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 abstract description 18
- 238000011084 recovery Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 239000000498 cooling water Substances 0.000 abstract description 2
- 239000002904 solvent Substances 0.000 abstract description 2
- 239000002918 waste heat Substances 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 9
- 238000005406 washing Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- -1 urine Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000004056 waste incineration Methods 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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/20—Waste processing or separation
Landscapes
- Gasification And Melting Of Waste (AREA)
- Treating Waste Gases (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、固形廃棄物と廃水の処
理方法に係り、特に都市ゴミ等の固形廃棄物と下水等の
水量が比較的多い廃水等とを相補的に処理する方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating solid waste and wastewater, and more particularly to a method for complementarily treating solid waste such as municipal waste and wastewater having a relatively large amount of water such as sewage. .
【０００２】[0002]
【従来の技術】都市ゴミ等の固形廃棄物とし尿や下水や
工場廃水等の廃水を処理する従来の方法は、廃水の処理
過程で発生する汚泥を脱水したのちに、ゴミの焼却炉で
焼却するものであった。ここでは実質的に各々の施設が
互いに独立して運用されていたため、排ガス、排熱、処
理水の利用にロスを生じており、資源、エネルギーの活
用がなされておらず、これらの有効利用が望まれてい
た。2. Description of the Related Art The conventional method for treating wastewater such as urine, sewage and industrial wastewater as solid waste such as municipal waste is to dehydrate sludge generated in the process of treating wastewater and then incinerate it in a refuse incinerator. It was something to do. Here, since each facility was operated independently of each other, there was a loss in the use of exhaust gas, exhaust heat, and treated water, and resources and energy were not utilized, so effective use of these Was wanted.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、固形廃棄物
の焼却処理工程と下水等の水量が比較的多い廃水の処理
工程とを相補的に配備し、それぞれから発生する廃熱、
排ガス及び処理水を有効に利用する新規かつ合理的な固
形廃棄物と廃水の処理方法を提供することを課題とす
る。DISCLOSURE OF THE INVENTION The present invention provides a solid waste incineration process and a wastewater treatment process in which a large amount of water such as sewage is relatively disposed, and waste heat generated from each of them is provided.
It is an object of the present invention to provide a new and rational method for treating solid waste and wastewater that effectively uses exhaust gas and treated water.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するため
に、本発明では、下記工程（ａ）〜（ｆ）、即ち、
（ａ）、固形廃棄物を焼却する焼却工程、（ｂ）、
（ａ）の焼却工程より発生する熱を利用して蒸気を発生
させ、発生した蒸気により、蒸気タービンを駆動する工
程、（ｃ）、廃水を浄化処理する水処理工程、（ｄ）、
（ｂ）の工程の蒸気タービンの排気復水器の冷却に、
（ｃ）の水処理工程からの処理水を用いる冷却工程、
（ｅ）、（ａ）の焼却工程からの焼却排ガスを、（ｃ）
の水処理工程からの処理水で洗浄する湿式排ガス処理工
程、（ｆ）、（ｅ）の処理工程からの排水を（ｃ）の水
処理工程に返送する返送工程、とからなる固形廃棄物と
廃水の処理方法としたものである。In order to solve the above problems, in the present invention, the following steps (a) to (f), namely,
(A), an incineration process for incinerating solid waste, (b),
(A) generating steam by using heat generated in the incineration step, driving the steam turbine with the generated steam, (c), water treatment step for purifying wastewater, (d),
For cooling the exhaust condenser of the steam turbine in the step (b),
A cooling step using the treated water from the water treatment step of (c),
(E), the incineration exhaust gas from the incineration process of (a), (c)
Solid waste consisting of a wet exhaust gas treatment step of washing with treated water from the water treatment step of (c), a return step of returning wastewater from the treatment steps of (f) and (e) to the water treatment step of (c), This is a treatment method for wastewater.
【０００５】[0005]
【作用】本発明は、上記のような構成としたことによ
り、焼却工程からの熱を利用して発生した蒸気によって
蒸気タービンを駆動しエネルギーの回収をおこなう場
合、蒸気タービン排気復水器の冷却に廃水の処理水を用
いることにより、焼却工程を廃水処理工程と切離して単
独に設ける場合に採用される冷却塔による空冷式に比べ
て冷却設備が小形化でき、かつ冷却効率が高くなり、発
生する蒸気からの熱回収率を向上させることができる。
また、焼却排ガス処理は廃水の処理水を用いた湿式処理
を採用することにより、洗浄水を使用していない乾式処
理に比べて有害物質の除去率を格段にしかも経済的に向
上させることができる。With the above-mentioned structure, the present invention cools the steam turbine exhaust condenser when the steam turbine is driven by the steam generated by utilizing the heat from the incineration process to recover energy. By using treated water of the wastewater for cooling, the cooling equipment can be downsized and the cooling efficiency can be improved compared to the air cooling type with a cooling tower that is adopted when the incineration process is separated from the wastewater treatment process and provided separately. The heat recovery rate from the generated steam can be improved.
In addition, by adopting the wet treatment using treated water of waste water for incineration exhaust gas treatment, the removal rate of harmful substances can be significantly and economically improved compared to the dry treatment that does not use washing water. .
【０００６】[0006]
【実施例】以下、本発明を実施例により具体的に説明す
るが、本発明はこれに限定されるものではない。 実施例１ 図１は本発明の処理法の１実施態様を示す工程図であ
る。廃水としては下水を例にとって説明する。図１にお
いて、ゴミ１は焼却工程２で焼却処理され、蒸気３が焼
却工程２のボイラー（図示せず）で製造される。発生し
た蒸気３は蒸気タービン４に導入されて蒸気タービンを
駆動する。EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited thereto. Example 1 FIG. 1 is a process diagram showing one embodiment of the treatment method of the present invention. Sewage will be described as an example of wastewater. In FIG. 1, garbage 1 is incinerated in an incineration step 2 and steam 3 is produced in a boiler (not shown) in the incineration step 2. The generated steam 3 is introduced into the steam turbine 4 to drive the steam turbine.
【０００７】一方、下水１０はスクリーン、ろ過等の前
処理工程で粗大夾雑物が除去され、該夾雑物は脱水され
たのちに焼却工程２で焼却される。夾雑物を除去された
下水は沈殿池１１で浮遊固形物を沈降分離したのち、曝
気槽や好気性炉床等の生物処理工程１２で処理されて、
処理水１４として放流される。沈殿池で沈降分離した固
形物は汚泥１３として引抜かれ、脱水されたのち焼却工
程で焼却される。上記処理水１４は、少なくとも一部分
岐１５されて、前記蒸気タービン４の排気復水器の冷却
水として用いられ、加熱された冷却排水は熱回収器８で
熱回収された後、管１６から処理水１４と合流して放流
される。On the other hand, the sewage 10 is subjected to a pretreatment process such as a screen and filtration to remove coarse impurities, and the impurities are dehydrated and then incinerated in an incineration step 2. The sewage from which impurities have been removed is subjected to sedimentation separation of suspended solids in a sedimentation basin 11, and then treated in a biological treatment process 12 such as an aeration tank or an aerobic hearth,
It is discharged as treated water 14. The solid matter settled and separated in the settling tank is extracted as sludge 13, dehydrated and then incinerated in the incineration process. The treated water 14 is at least partially branched 15 and used as cooling water for the exhaust condenser of the steam turbine 4, and the heated cooling waste water is recovered from heat in the heat recovery device 8 and then processed from the pipe 16. It merges with the water 14 and is discharged.
【０００８】また、分岐１５された処理水の一部は、焼
却工程２からの排ガス５の処理のため、加圧水式、充填
塔式、回転式等各種の洗浄集塵装置や脱硫、脱硝、塩素
系ガス等の吸収剤溶媒等として湿式排ガス処理工程６の
洗浄水に用いられる。該処理工程６で使用された洗浄水
は洗浄排水１７として、下水１０と合流されて水処理さ
れる。一方、ガス処理された排ガス７は大気中へ排出さ
れる。Further, a part of the treated water that has been branched 15 is used for treating the exhaust gas 5 from the incineration step 2, so that various cleaning dust collectors such as a pressurized water type, a packed tower type, a rotary type, desulfurization, denitration and chlorine are used. It is used for the cleaning water in the wet exhaust gas treatment step 6 as an absorbent solvent for the system gas and the like. The washing water used in the treatment step 6 is combined with the sewage 10 as the washing drainage 17 for water treatment. On the other hand, the gas-treated exhaust gas 7 is discharged into the atmosphere.
【０００９】次に、上記の処理工程で処理した結果を示
す。都市ゴミ１１０ｔ／日を焼却し、焼却により発生す
る熱を利用して蒸気を発生させ、蒸気タービンを駆動し
て発電を行う。発電した電力はゴミ焼却施設及び２５，
０００ｍ3 ／日規模の下水処理に必要な電力をまかなう
ことができる。表１に発電量と消費電力の収支を示す。Next, the results of processing in the above processing steps will be shown. 110 t / day of municipal waste is incinerated, steam is generated by using heat generated by the incineration, and a steam turbine is driven to generate power. The power generated is garbage incineration facility and 25,
It can supply the electric power necessary for 000m 3 / day scale sewage treatment. Table 1 shows the balance of power generation and power consumption.
【００１０】[0010]
【表１】 [Table 1]
【００１１】[0011]
【発明の効果】本発明によれば、従来技術では得られな
かった次のような複合的効果を得ることができる。 （１）焼却工程の余剰熱を有効に利用することができ
る。 （２）焼却工程の排ガス処理を効率よく経済的に行うこ
とができる。 （３）排ガス処理工程からの排水を容易に経済的に処理
することができる。 （４）焼却工程と廃水処理工程で必要な電力を自給する
ことができ、維持管理費用の大巾な削減ができる。According to the present invention, the following complex effects, which cannot be obtained by the prior art, can be obtained. (1) The surplus heat of the incineration process can be effectively used. (2) The exhaust gas treatment in the incineration process can be performed efficiently and economically. (3) Wastewater from the exhaust gas treatment process can be easily and economically treated. (4) The power required for the incineration process and the wastewater treatment process can be self-sufficient, and the maintenance cost can be greatly reduced.
【図１】本発明の処理方法の一例を示す工程図。FIG. 1 is a process chart showing an example of a processing method of the present invention.
１：ゴミ、２：焼却工程、３：蒸気、４：蒸気タービ
ン、５：排ガス、６：湿式排ガス処理工程、７：処理排
ガス、８：熱回収器、１０：下水、１１：沈殿池、１
２：生物処理工程、１３：汚泥、１４：処理水、１５：
分岐処理水、１６：冷却排水、１７：洗浄排水1: Waste, 2: Incineration process, 3: Steam, 4: Steam turbine, 5: Exhaust gas, 6: Wet exhaust gas treatment process, 7: Treatment exhaust gas, 8: Heat recovery device, 10: Sewage, 11: Sedimentation tank, 1
2: biological treatment process, 13: sludge, 14: treated water, 15:
Branched treated water, 16: Cooling wastewater, 17: Washing wastewater
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ２３Ｊ 1/02 Ａ 7367−3Ｋ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI technical display location F23J 1/02 A 7367-3K
Claims (1)
棄物と廃水の処理方法。 （ａ）、固形廃棄物を焼却する焼却工程、（ｂ）、
（ａ）の焼却工程より発生する熱を利用して蒸気を発生
させ、発生した蒸気により、蒸気タービンを駆動する工
程、（ｃ）、廃水を浄化処理する水処理工程、（ｄ）、
（ｂ）の工程の蒸気タービンの排気復水器の冷却に、
（ｃ）の水処理工程からの処理水を用いる冷却工程、
（ｅ）、（ａ）の焼却工程からの焼却排ガスを、（ｃ）
の水処理工程からの処理水で洗浄する湿式排ガス処理工
程、（ｆ）、（ｅ）の処理工程からの排水を（ｃ）の水
処理工程に返送する返送工程。1. A method for treating solid waste and waste water, comprising the following steps (a) to (f): (A), an incineration process for incinerating solid waste, (b),
(A) generating steam by using heat generated in the incineration step, driving the steam turbine with the generated steam, (c), water treatment step for purifying wastewater, (d),
For cooling the exhaust condenser of the steam turbine in the step (b),
A cooling step using the treated water from the water treatment step of (c),
(E), the incineration exhaust gas from the incineration process of (a), (c)
Wet exhaust gas treatment step of cleaning with treated water from the water treatment step of (f), (f), a return step of returning wastewater from the treatment step of (e) to the water treatment step of (c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28342092A JPH0820064B2 (en) | 1992-09-30 | 1992-09-30 | Solid waste and wastewater treatment methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28342092A JPH0820064B2 (en) | 1992-09-30 | 1992-09-30 | Solid waste and wastewater treatment methods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06117617A true JPH06117617A (en) | 1994-04-28 |
| JPH0820064B2 JPH0820064B2 (en) | 1996-03-04 |
Family
ID=17665306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28342092A Expired - Lifetime JPH0820064B2 (en) | 1992-09-30 | 1992-09-30 | Solid waste and wastewater treatment methods |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0820064B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009529421A (en) * | 2006-03-10 | 2009-08-20 | モーガン・エバレット・リミテッド | Waste treatment apparatus and method |
| JP2019023453A (en) * | 2017-07-25 | 2019-02-14 | Ｊｆｅエンジニアリング株式会社 | Power generation system using waste heat in sewage sludge incineration equipment and operation method of power generation system |
| JP2022014653A (en) * | 2020-07-07 | 2022-01-20 | 月島機械株式会社 | Water treatment system and water treatment method |
-
1992
- 1992-09-30 JP JP28342092A patent/JPH0820064B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009529421A (en) * | 2006-03-10 | 2009-08-20 | モーガン・エバレット・リミテッド | Waste treatment apparatus and method |
| US8307770B2 (en) | 2006-03-10 | 2012-11-13 | Pyropure Limited | Waste treatment apparatus and method |
| US9851100B2 (en) | 2006-03-10 | 2017-12-26 | Pyropure Limited | Waste treatment apparatus and method |
| JP2019023453A (en) * | 2017-07-25 | 2019-02-14 | Ｊｆｅエンジニアリング株式会社 | Power generation system using waste heat in sewage sludge incineration equipment and operation method of power generation system |
| JP2022014653A (en) * | 2020-07-07 | 2022-01-20 | 月島機械株式会社 | Water treatment system and water treatment method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0820064B2 (en) | 1996-03-04 |
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