JPS5830380A - Treatment for incineration ash of sewage sludge - Google Patents
Treatment for incineration ash of sewage sludgeInfo
- Publication number
- JPS5830380A JPS5830380A JP56127770A JP12777081A JPS5830380A JP S5830380 A JPS5830380 A JP S5830380A JP 56127770 A JP56127770 A JP 56127770A JP 12777081 A JP12777081 A JP 12777081A JP S5830380 A JPS5830380 A JP S5830380A
- Authority
- JP
- Japan
- Prior art keywords
- sewage sludge
- sludge
- incineration ash
- dehydrated cake
- sewage
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
Description
【発明の詳細な説明】
のであって、下水汚泥１焼却灰を造粒後、焼成して軽媚
°骨利をイｊ４ることを「Ｉ的とする。[Detailed Description of the Invention] The sewage sludge 1 incineration ash is granulated and then calcined to produce light ashes.
下水処ｐ１ｊ ：Ｉ易より発生する汚泥Ｃｊ、、その処
分ＩＴ）゛を減少するために脱水してリ：１′１札却し
、焼却灰として埋立処分されている場合が多いが、その
−ｍ′は草大なもので埋立地の確保がφ１ｒかしくなー
っている。それ故この下水汚泥焼却灰の有効利用法の開
発が強く望吐れている。In order to reduce sewage treatment p1j: sludge Cj, and its disposal IT), it is often dehydrated and disposed of as incinerated ash, but the - m' is so large that it is difficult to secure a landfill site by φ1r. Therefore, there is a strong desire to develop a method for effectively utilizing this sewage sludge incineration ash.
本発明はこの要望に応１〕るために、下水汚泥焼却灰を
造粒後焼成して軽１↑１でり・’１ ｒ埃の犬なる骨材
を造らんとして種々研究を行った。In order to meet this demand, the present invention has conducted various studies in an attempt to produce a lightweight aggregate with a light weight of 1↑1 and 100% dust by granulating and burning sewage sludge incineration ash.
その結果によると、下水汚泥焼却灰に下水汚泥の脱水ケ
ーキを添加して造粒すると、下水汚泥のルρ４水ケーキ
の添加量が特定範囲内であるとき、強度の犬なる造粒物
が得られること、および斯くしてイ１）られた造粒物を
焼成すれば比較的低い焼成温庶で比重の小さく強度の犬
なる焼結粒状物が得られることを知見した。According to the results, when sewage sludge incineration ash is granulated by adding dehydrated sewage sludge cake, a strong granulated product can be obtained when the amount of sewage sludge water cake added is within a specific range. It has been found that by firing the granules obtained in (1) above, sintered granules with low specific gravity and high strength can be obtained at a relatively low firing temperature.
次に実験した結果について説明する。Next, the experimental results will be explained.
実験に使用した焼却灰の組成は重量％で表わして第１表
の如きものであり、壕だ焼却灰に添加する下水汚泥の脱
水ケーキとしては同じ下水処理場より得られたものを使
用した。The composition of the incineration ash used in the experiment was as shown in Table 1 in weight percent, and the dehydrated cake of sewage sludge added to the trench incineration ash was obtained from the same sewage treatment plant.
第 １ 表 （％）
焼却灰に脱水ケーキをｆｉｌｉ々の割合に添加して造粒
し、脱水ケーキの添加量と造粒物の圧潰強度との関係を
求め、第１図の結果を得た。次にこの造粒物に対する脱
水ケーキの添加１１トと’、Ｉ３％成にｍ度並びに焼成
物の比重との関係を求め第２図の結果をイ４ｆ／ζ。Table 1 (%) Dehydrated cake was added to the incineration ash in various proportions and granulated, and the relationship between the amount of dehydrated cake added and the crushing strength of the granulated product was determined, and the results shown in Figure 1 were obtained. . Next, the relationship between the addition of the dehydrated cake to this granulated material, the I3% composition, and the specific gravity of the baked product was determined, and the results shown in Figure 2 were obtained.
第１図より焼却灰に対する脱水ケーキの添加…゛を増加
すると造粒物の圧α１強度が犬に乃・ることか認められ
た。ただ実際にｄ：造粒の際の滴下水分計には限界があ
るだめ、脱水ケーキの含水（〒１によっておのづから脱
水ケーキの添加Ｆ；１゛の−に限が定１ってくる。From Figure 1, it was found that as the amount of dehydrated cake added to the incinerated ash was increased, the pressure α1 strength of the granules increased. However, in reality, there is a limit to the dripping moisture meter used during granulation, so the moisture content of the dehydrated cake (〒1 automatically limits the addition of F; 1゛ to -1゛). .
次に第２図」：す焼却灰に対する脱水ケーキの添加量を
増加すれば、比較的低い温度で比重の小さい焼結粒状物
がイＨられることプＩ新忍められた。Next, as shown in Figure 2, it was found that by increasing the amount of dehydrated cake added to the incinerated ash, sintered granules with low specific gravity could be produced at relatively low temperatures.
捷だ、ごれらの焼結粒状物のＢＳ −８１２法による破
壊強度は３６〜４１９にであった。The fracture strength of the sintered granules of Katsuda and Gorera by the BS-812 method was 36 to 419.
ここに上苫己圧潰強度とは造粒物の強面測定法の一種で
、−粒の造粒物を板上に詩き、その試料の上に板をのせ
、その上から加重をかけてどの４１コ度の加重で破壊す
るかを試験する方法である。Here, Utomomagi crushing strength is a type of method for measuring the toughness of granules. This is a test method to see if it will break under a load of 41 degrees.
捷だＢＳ −８１２法は英国規格で有底のシリンダー中
に試料をある程度粒径をそろえて入れ、その」二から所
定の加重をかけて、破砕されたものを所定のｆ！Ｒｉで
分け、篩下の量を％で示す方法である。The Shoda BS-812 method is based on the British standard, in which samples are placed in a cylinder with a bottom to a certain degree of uniform particle size, then a predetermined load is applied to the crushed material, and the crushed material is crushed to a predetermined f! This is a method that divides by Ri and indicates the amount under the sieve in %.
本発明けこれらの知見に基くものであって、下水汚泥の
焼却灰に対し同じ下水汚泥の脱水ケーキを添加し、含水
率を調整して造粒して後、焼成することを特徴とする下
水汚泥焼却灰の処理方法である。The present invention is based on these findings, and is characterized by adding a dehydrated cake of the same sewage sludge to the incineration ash of the sewage sludge, adjusting the moisture content, granulating it, and then firing it. This is a method for processing sludge incineration ash.
本発明において、下水から汚泥を凝集し、沈澱させて脱
水せしめる工程で消石灰を添加する場合は、汚泥中に酸
化力ルンウムの含有量か多くなるので、造粒物を高温で
焼成する際に融着し易くなるため、汚泥中の酸化カルシ
ウム量は１５％以下のものを使用することが望ましい。In the present invention, when slaked lime is added in the process of agglomerating sludge from sewage, sedimentation, and dehydration, the content of oxidizing lime in the sludge increases, so it is difficult to melt when the granules are fired at high temperatures. It is desirable to use sludge with an amount of calcium oxide of 15% or less, since this makes it easier for the calcium oxide to adhere to the sludge.
寸だ下水汚泥焼却灰に添加する汚泥の脱水ケーキの添加
量”は脱水ケーキの含水量により相違するので一概、に
定めることはできないが、下水汚泥焼ｊニーＩＴ灰１０
０１量部に対し脱水ケーキをその乾燥固形分量として１
０〜８０重量部添力１］シ、混合物の含水量を調整して
造粒することが好」しい。The amount of sludge dehydrated cake added to sewage sludge incineration ash cannot be determined unconditionally as it varies depending on the water content of the dehydrated cake, but it is
1 part of dehydrated cake as its dry solid content
It is preferable to adjust the water content of the mixture and granulate it.
本発明における造粒は焼却灰に適当の脱水ケーキを添加
し混練した後、通常の１１１１形造粒機などを使用して
行々う。得られる粒径に１．０５〜１４ｉ ｍｍのもの
が望ましい。Granulation in the present invention is carried out by adding a suitable dehydrated cake to the incineration ash, kneading it, and then using a conventional 1111 type granulator. The resulting particle size is preferably 1.05 to 14 mm.
次に斯くして造った造粒物を慎、成するには、ロータリ
ーキルンなどを使１１ｊシて行なうと、！−も出来るが
、この装置でＩｄ゛＊＋’７’、成１ｔｒＳイｌ゛で粉
化が起り易く、またｒ、＋！ｌ！着し易い１１イ１向が
あるので特願゛昭５５−７５５２２・、号お」＝び特願
昭５５−１．０：□３１６６号の気流焼成Ｊｊ法及ｊ
び炉を使用すれば、造粒物は投入初期に急激に加熱され
るので、造粒物の表面がすぐ焼結され、造粒物の粉化が
少なく、造粒物相互のＩ？ｌｌＩ！矛、もなく、比重の
軽い焼成物を造ることができる。Next, to produce the granulated product thus produced, use a rotary kiln or the like. - can also be done, but with this device Id゛*+'7', pulverization is likely to occur in the formation of 1trS, and r, +! l! Since there are 11 and 1 directions that are easy to attach, the airflow firing method and method of patent application No. 75522/1983 and patent number 1.0/3166 of 1983 are applied.
If a furnace is used, the granules are rapidly heated at the initial stage of feeding, so the surface of the granules is immediately sintered, there is less pulverization of the granules, and the I/O of the granules is reduced. llI! It is possible to make fired products with a light specific gravity without any need for a spear.
造粒物の焼成温度は脱水ケーキの添加量および所望製品
の比重により異るが、１．０００〜１．２００℃の間で
ある。The firing temperature of the granules varies depending on the amount of dehydrated cake added and the specific gravity of the desired product, but is between 1.000 and 1.200°C.
本発明によれば下水汚泥以外の材石を用いずに、同−下
水処理場から排出する下水汚泥焼却灰よ、−よび下水汚
泥の脱水ケーキを原料として比重が小で強度の大々る焼
成物を造ることができるので、その工業的価値は大であ
る。According to the present invention, the sewage sludge incineration ash discharged from the sewage treatment plant and the dewatered cake of sewage sludge are used as raw materials to produce high-strength sintering with low specific gravity, without using materials other than sewage sludge. Its industrial value is great because it can make things.
実ノ血例
下水処ｙｑ■ｒ ｉＨから排出する第１表に示す組成を
もつ、石灰を使用しないで処理した下水汚泥焼却灰を、
２００メツシュ篩通過９０πに粉砕し、この焼却灰粉砕
物１００重量部に対し、同じ下水処理場で排出する下水
汚泥脱水ケーキ（含水ｔ ５５ ％ ） ４５重量部を
添加混練し、皿型造粒機により直径５〜１５ｍｍの造粒
物を作り乾燥した。このようにして得られた造粒乾燥物
は直径１０祁の粒のものでは９１１（りの圧潰強度があ
った。またこれを電気炉で焼成し７たとこる第２表に示
すように、比重が小さい焼結粒状物が得られた。Sewage sludge incineration ash, which has the composition shown in Table 1 and is discharged from the sewage treatment yq■r iH and is treated without using lime, is
The incineration ash was pulverized to 90π passing through a 200-mesh sieve, and 45 parts by weight of dehydrated sewage sludge cake (water content 55%) to be discharged at the same sewage treatment plant was added and kneaded to 100 parts by weight of the pulverized incineration ash. Granules with a diameter of 5 to 15 mm were prepared and dried. The granulated dried product obtained in this way had a crushing strength of 911 (mm) for grains with a diameter of 10mm.The crushing strength of the dried granulated product was 911 (mm) when fired in an electric furnace.As shown in Table 2, Sintered granules with low specific gravity were obtained.
第 ２ 表
寸／ここの球形の焼結粒状物試ネ１のＩＧ’；−８１２
による破砕＋Ｍ’ｊ度姓１：３７．９％でハシ）って、
強＋」ｙの大きい焼結粒状物プバイ！１られた。2nd table size/IG' of spherical sintered granule sample 1; -812
Crushing + M'j degree surname 1: 37.9% Hashi)
Strong+”y large sintered granules! I got 1.
４図面のｊｙｉ゛ｒ ？Ｉ′Ｉな説明
第１図は下水汚泥ジ；ケ却灰に対する下水汚泥の脱水ケ
ーキの添加量と５１１９粒物の圧６１１強ｌ埃との関係
を示し、第２ ｆ’７１ Ｈ：下水汚泥焼却灰に対する
下水汚泥の脱水ケーキの添加量と焼成搗度並ひに４：＋
’、ｒ、成物の比酸物の関係を示す。4 drawings jyi゛r? Figure 1 shows the relationship between the amount of dewatered cake of sewage sludge added to sewage sludge ash and the pressure of 5119 grains of 611-strong dust; Amount of dehydrated cake of sewage sludge added to incineration ash and degree of calcination equal to 4:+
', r, shows the relationship between the specific acid of the product.
第２図において１，２：Ｉ：、−よび３はそれぞれ知；
酸物の田型】。０，１．．２お」：び１．４の場合を示
す。In Figure 2, 1, 2:I:, - and 3 are respectively known;
Acid type]. 0,1. ．． 2 O': and 1.4 cases are shown.
７ − お１図7- 1 diagram
Claims (1)
水ケーキを添加し、含水率を調′１６シて潰れ′ｉして
後、炉、成することを７１！１徴とする下水汚泥ｊ１３
’７却灰の処理方法。qlt of F water sludge, add the same sewage/F) dehydrated cake to the ash, adjust the water content and crush it, then use the furnace to achieve 71!1 characteristics. sewage sludge j13
'7 How to dispose of ash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56127770A JPS5830380A (en) | 1981-08-17 | 1981-08-17 | Treatment for incineration ash of sewage sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56127770A JPS5830380A (en) | 1981-08-17 | 1981-08-17 | Treatment for incineration ash of sewage sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5830380A true JPS5830380A (en) | 1983-02-22 |
| JPS6114099B2 JPS6114099B2 (en) | 1986-04-17 |
Family
ID=14968256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56127770A Granted JPS5830380A (en) | 1981-08-17 | 1981-08-17 | Treatment for incineration ash of sewage sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5830380A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59195571A (en) * | 1983-04-15 | 1984-11-06 | 日本碍子株式会社 | Manufacture of lightweight aggregate from sludge |
| JPS59195572A (en) * | 1983-04-15 | 1984-11-06 | 日本碍子株式会社 | Manufacture of lightweight aggregate |
| JPS60210552A (en) * | 1984-04-04 | 1985-10-23 | 日本碍子株式会社 | Manufacture of lightweight aggregate from sludge |
| JPH0639365A (en) * | 1992-07-20 | 1994-02-15 | Haruo Unno | Method and device for producing modified soil by use of waste soil, sludge and ash of incinerated waste or the like |
| JPH07941A (en) * | 1991-12-13 | 1995-01-06 | Tsukishima Kikai Co Ltd | Method for molding incineration ash |
| JP2008538347A (en) * | 2005-01-14 | 2008-10-23 | アルケミー，リミテッド | Synthetic aggregates containing sewage sludge and other waste and methods for producing such aggregates |
| CN107954620A (en) * | 2017-12-12 | 2018-04-24 | 安徽宇瑞环保建设有限公司 | A kind of Application way to sludge in sewage treatment plant |
-
1981
- 1981-08-17 JP JP56127770A patent/JPS5830380A/en active Granted
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59195571A (en) * | 1983-04-15 | 1984-11-06 | 日本碍子株式会社 | Manufacture of lightweight aggregate from sludge |
| JPS59195572A (en) * | 1983-04-15 | 1984-11-06 | 日本碍子株式会社 | Manufacture of lightweight aggregate |
| JPH0229620B2 (en) * | 1983-04-15 | 1990-07-02 | Ngk Insulators Ltd | |
| JPH0359026B2 (en) * | 1983-04-15 | 1991-09-09 | Ngk Insulators Ltd | |
| JPS60210552A (en) * | 1984-04-04 | 1985-10-23 | 日本碍子株式会社 | Manufacture of lightweight aggregate from sludge |
| JPH0132180B2 (en) * | 1984-04-04 | 1989-06-29 | Ngk Insulators Ltd | |
| JPH07941A (en) * | 1991-12-13 | 1995-01-06 | Tsukishima Kikai Co Ltd | Method for molding incineration ash |
| JPH0639365A (en) * | 1992-07-20 | 1994-02-15 | Haruo Unno | Method and device for producing modified soil by use of waste soil, sludge and ash of incinerated waste or the like |
| JP2008538347A (en) * | 2005-01-14 | 2008-10-23 | アルケミー，リミテッド | Synthetic aggregates containing sewage sludge and other waste and methods for producing such aggregates |
| CN107954620A (en) * | 2017-12-12 | 2018-04-24 | 安徽宇瑞环保建设有限公司 | A kind of Application way to sludge in sewage treatment plant |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6114099B2 (en) | 1986-04-17 |
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