JPH0684262B2 - Manufacturing method of ceramics using sewage sludge incineration ash - Google Patents
Manufacturing method of ceramics using sewage sludge incineration ashInfo
- Publication number
- JPH0684262B2 JPH0684262B2 JP63284564A JP28456488A JPH0684262B2 JP H0684262 B2 JPH0684262 B2 JP H0684262B2 JP 63284564 A JP63284564 A JP 63284564A JP 28456488 A JP28456488 A JP 28456488A JP H0684262 B2 JPH0684262 B2 JP H0684262B2
- Authority
- JP
- Japan
- Prior art keywords
- sio
- ceramic
- incineration ash
- cao
- ceramics
- 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 - Fee Related
Links
- 239000000919 ceramic Substances 0.000 title claims description 37
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000010801 sewage sludge Substances 0.000 title claims description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 23
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 19
- 239000004566 building material Substances 0.000 claims description 14
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 17
- 238000010304 firing Methods 0.000 description 16
- 239000010802 sludge Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 239000002994 raw material Substances 0.000 description 8
- 230000000704 physical effect Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 229910052661 anorthite Inorganic materials 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000005467 ceramic manufacturing process Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- GWWPLLOVYSCJIO-UHFFFAOYSA-N dialuminum;calcium;disilicate Chemical compound [Al+3].[Al+3].[Ca+2].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] GWWPLLOVYSCJIO-UHFFFAOYSA-N 0.000 description 1
- 238000007580 dry-mixing Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- -1 mechanical strength Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021489 α-quartz Inorganic materials 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、下水道汚泥の焼却灰処理及び有効利用の方法
に関するものである。TECHNICAL FIELD The present invention relates to a method for incineration ash treatment and effective utilization of sewer sludge.
従来の技術 近年、各都市では、下水道普及率の上昇に伴って、下水
道汚泥の発生量が膨大となり、下水道処理場で焼却処理
されたその焼却灰は増大する一方である。2. Description of the Related Art In recent years, in each city, the amount of sewer sludge generated has increased as the sewerage coverage rate has increased, and the incinerated ash that has been incinerated at sewer treatment plants is increasing.
現在までこれらの焼却灰は主に都市近傍の埋立て用地に
棄捨されていたが、近年埋立て用地の不足と土地の高
騰、及び処理費の増大等が大きな問題となってきた。一
方、この焼却灰の成分は無機灰分と重金属類に大別され
るが、埋立て処理そのものにおいても、灰の飛散や重金
属の溶出という二次公害の問題もあり、これらの問題を
総合的に解決するような焼却灰の再利用方法の研究が各
都市において、公的機関や企業との共同で行われている
（例えば、岐阜市と日本碍子株式会社との共同出願に係
わる特公昭61−50895号公報参照。）。現在知られてい
る汚泥焼却灰の有効利用の態様としては、骨材（上記
共同出願の発明も、この製造法に関する。）、路盤
材、アスファルト用増量添加剤への加工等であるが、
比較的新しい方法として注目されているのが、セラミ
ック建材としての利用である。この方法は、焼却灰を天
然原料（調合不明）と混合した後、タイル状に成形し、
焼成して建材を得る利用法であり、一部製造販売もされ
ているが、未だ模索段階である。Until now, these incinerated ash have been mainly discarded in landfill sites near the city, but in recent years, shortage of landfill sites, soaring land, and increase in treatment costs have become major problems. On the other hand, the components of this incinerated ash are roughly divided into inorganic ash and heavy metals, but even in the landfill process itself, there is a problem of secondary pollution such as ash scattering and elution of heavy metals, and these problems are comprehensively considered. Research on a method of reusing incinerated ash that can be solved is being conducted in each city in collaboration with public institutions and companies (for example, Japanese Patent Publication No. 61- See Japanese Patent No. 50895.). Examples of the currently known effective use of sludge incineration ash include aggregates (the invention of the above-mentioned joint application also relates to this production method), roadbed materials, and processing into asphalt increasing additives.
The use as a ceramic building material is drawing attention as a relatively new method. This method mixes incinerated ash with natural raw material (mixing unknown), then molds it into tiles,
It is a method of obtaining building materials by firing, and although some of them are manufactured and sold, they are still in the search stage.
発明が解決しようとする課題 本発明は、下水道汚泥焼却場より回収される無機質及び
重金属材料を含んだ焼却灰に現在新素材として注目され
ているセラミック原料を添加し、新しいセラミック製品
を開発するためのセラミック製造法に関するものであ
る。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The present invention is intended to develop a new ceramic product by adding a ceramic raw material, which is currently attracting attention as a new raw material, to incineration ash containing an inorganic material and a heavy metal material recovered from a sewer sludge incinerator. The present invention relates to a ceramic manufacturing method.
セラミック製品として焼却灰を利用する場合の課題は、 1.焼却灰を如何にして多量に添加し、セラミックス製品
をつくるか。The issues in using incinerated ash as a ceramic product are: 1. How to add a large amount of incinerated ash to make a ceramic product.
2.焼成温度を一般セラミック焼成温度に比較して低温に
することができるか。という点である。2. Can the firing temperature be lower than the firing temperature of general ceramics? That is the point.
一般に、セラミックスへの焼成温度は1250℃以上であ
り、特にファインセラミックスでは1500〜1600℃程度で
なければならないとされている。Generally, the firing temperature for ceramics is 1250 ° C. or higher, and particularly for fine ceramics, it is said to be about 1500 to 1600 ° C.
なお、下水道汚泥と同様、回収・処理の問題点を有する
一般都市ゴミについて発明者は、一般都市ごみの焼却灰
は、下水道焼却灰に比較して不安定であり、セラミック
製品として使用した場合に、強度や焼成による収縮率
（15〜20％）が不揃いとなることを確認した。このた
め、本発明は、下水道汚泥の焼却灰のみを対象とするも
のである。As with the case of sewer sludge, the inventor of general municipal solid waste, which has problems of collection and treatment, is more unstable than the sewer incinerator ash, and when using it as a ceramic product, It was confirmed that the strength and shrinkage rate (15 to 20%) due to firing were uneven. Therefore, the present invention is intended only for incineration ash of sewer sludge.
本発明に用いた下水道汚泥焼却灰の分析値は次表に示す
とおりである。The analysis values of the sewage sludge incineration ash used in the present invention are shown in the following table.
セラミックス形成の観点により、分析された組成につい
て考慮すると、SiO2、Al2O3はセラミックスの母体とな
り、CaO、Fe2O3、Na2O3、K2Oはガラス組成を形成する融
剤（ガラス質形成剤）として働くものであり、この焼却
灰単味の焼結によっても、一応セラミックスの形成は可
能である。 Considering the analyzed composition from the viewpoint of ceramics formation, SiO 2 , Al 2 O 3 become the matrix of ceramics, and CaO, Fe 2 O 3 , Na 2 O 3 , and K 2 O are fluxes that form the glass composition. It functions as a (vitreous forming agent), and it is possible to form ceramics by sintering the incinerated ash alone.
しかしながら、たとえば建材用タイル（床材、内装材、
外装材を含む）や下水道用セラミック土管等の建材固定
の形成について検討した場合、焼却灰の分析値のSiO2、
Al2O3が不足するため、焼却灰単味で焼結しようとして
も、いわゆる焼成幅が狭くなって、発泡現象が起こり、
かつ変形するため、不可能である。また、耐火煉瓦の形
成の可能性については、焼却灰では耐火度が不足（約10
00℃でガラス化）し、不都合であった。However, for example, tiles for building materials (floor materials, interior materials,
When the formation of fixed building materials such as ceramics pipes for sewerage (including exterior materials) and sewer pipes was examined, the analysis value of incinerated ash was SiO 2 ,
Al 2 O 3 is insufficient, so even if you try to sinter with incinerated ash alone, the so-called firing width narrows and a foaming phenomenon occurs,
It is also impossible because it deforms. Regarding the possibility of forming refractory bricks, the incineration ash lacks fire resistance (about 10
It vitrified at 00 ° C), which was inconvenient.
発明者は、これらの問題解決のため、各種のセラミック
原料添加を考慮し、如何に少量の添加により、高品質の
セラミック製品ができるかについて検討した結果、次の
よう方法に到達したものである。In order to solve these problems, the inventor has considered the addition of various ceramic raw materials and examined how a small amount of ceramic raw material can be added to obtain a high quality ceramic product. As a result, the following method has been reached. .
課題を解決するための手段 すなわち、本発明の方法は、下水道汚泥焼却灰と、SiO2
を主成分としその数分の１のAl2O3を含むセラミック材
料とを混合し、その組成を各重量％においてSiO2が41〜
66、Al2O3が11〜18、CaOが７〜33、FeO22〜８の範囲で
あって、かつCaO/SiO2比が0.11〜0.86、CaO/Al2O3比が
0.4〜3.0、Al2O3/SiO2比が0.26〜0.28となるように調整
し、この組成物を建材固体として成形し、かつこれを常
温より1100〜1200℃まで昇温・加熱して焼結することを
特徴とするものである。Means for Solving the Problems That is, the method of the present invention, sewer sludge incineration ash, SiO 2
Is mixed with a ceramic material containing Al 2 O 3 as a main component and a fraction thereof, and the composition is such that SiO 2 is 41-
66, Al 2 O 3 is 11 to 18, CaO is 7 to 33, FeO 2 2 to 8, and the CaO / SiO 2 ratio is 0.11 to 0.86 and the CaO / Al 2 O 3 ratio is
0.4 to 3.0, Al 2 O 3 / SiO 2 ratio is adjusted to be 0.26 to 0.28, this composition is molded as a building material solid, and this is heated and heated from room temperature to 1100 to 1200 ° C. It is characterized by binding.
作用 上記の混合物組成、及び焼成条件によるならば、焼成に
よる変形を生じないで、機械的強度及び吸水率等の物理
的特性において、建材用セラミックスとして一応満足す
べき製品を得ることができる。Action According to the above mixture composition and firing conditions, it is possible to obtain a product which is tentatively satisfactory as a ceramic for building materials in terms of mechanical strength and physical properties such as water absorption without deformation due to firing.
実施例の説明 建材や耐火煉瓦をつくるためには、焼成体の物性値とし
て機械的強度、吸水率、寸法の安定性が特に問題とな
る。Description of Examples In order to produce building materials and refractory bricks, mechanical strength, water absorption rate, and dimensional stability are particularly problematic as physical properties of the fired body.
ここで本発明のセラミックス製造工程の概略を説明す
る。Here, the outline of the ceramic manufacturing process of the present invention will be described.
（１）下水道焼却灰の粉砕、ふるい分け （２）セラミック原料配合物の調製 各種セラミック原料を、全体としてはSiO2を主成分と
し、その数分の１のAl2O3を含むことを必須として用意
し、これらを調合・粉砕してなるセラミック配合物を得
る。(1) Grinding and sieving sewage incineration ash (2) Preparation of ceramic raw material mixture It is essential that various ceramic raw materials have SiO 2 as a main component as a whole and a fraction of Al 2 O 3 as a main component. A ceramic compound prepared by preparing and crushing these is obtained.
（３）ふるい分け焼却灰と、セラミック配合物の混合、
造粒 （４）金型プレス成型 適当な大きさのタイル状に成型する。(3) Sieving incineration ash and ceramic mixture,
Granulation (4) Mold press molding Mold into appropriate size tiles.
（５）乾燥 造粒時、二次的に加えた水分を除去するために乾燥す
る。(5) Drying At the time of granulation, it is dried to remove the water added secondarily.
（６）焼成 焼成した成型物を常温より1100〜1200℃まで昇温・加熱
して約20〜60分間この温度に維持して焼結する。(6) Firing The fired molded product is heated from room temperature to 1100 to 1200 ° C. and heated, and maintained at this temperature for about 20 to 60 minutes to be sintered.
（７）外観検査 （８）物性測定 かさ比重、曲げ強さ、吸水率等の物性を測定する。(7) Appearance inspection (8) Physical property measurement Physical properties such as bulk specific gravity, bending strength, and water absorption are measured.
前述のように、建材としてのセラミック製品を製造する
ためには、建材としての物性値を維持できる限度の下水
道汚泥の焼却灰を如何に多く、効率的に添加することが
できるかを検討する必要があり、その検討は焼却灰添加
後物のAl2O3、SiO2の量と、CaO/SiO2、CaO/Al2O3及びAl
2O3/SiO2の各比を目安として行う必要がある。As mentioned above, in order to manufacture ceramic products as building materials, it is necessary to study how much incineration ash of sewer sludge can be efficiently added to the extent that the physical properties of building materials can be maintained. There is a study on the amount of Al 2 O 3 and SiO 2 after the addition of incinerated ash, CaO / SiO 2 , CaO / Al 2 O 3 and Al.
It is necessary to use each ratio of 2 O 3 / SiO 2 as a guide.
表IIに重量比により下水道焼却灰とセラミック配合物と
の混合比と、調合組成のCaO、SiO、Al2O3比を示す。Table II shows the mixing ratio of sewage incineration ash and ceramic mixture by weight ratio and the CaO, SiO, Al 2 O 3 ratio of the compounding composition.
比較試験時において試供された焼却灰（表Ｉのものとは
異なる）の100重量％の単味では、CaO/SiO2＝1.48、CaO
/Al2O3＝5.25、Al2O3/SiO2＝0.28となり、これは1150℃
焼成で急激に変形、及び発泡現象が現れ、セラミック製
品には不向きであり、非常に焼成幅は狭いことが判明し
た。 100% by weight of the incinerated ash (different from that in Table I) used in the comparison test, CaO / SiO 2 = 1.48, CaO
/ Al 2 O 3 = 5.25, Al 2 O 3 / SiO 2 = 0.28, which is 1150 ℃
It was found that a rapid deformation and foaming phenomenon appeared during firing, which was not suitable for ceramic products, and the firing width was very narrow.
焼成灰単味に表IIのNo.1〜９に示すごとく、漸次、セラ
ミック配合物を添加していくと、Al2O3、SiO2の割合が
増加し、CaO、Fe2O3の減少と共に、焼成幅が広がって、
強度の増大が認められた。同時に焼成温度を上昇する必
要を認められる。As shown in Nos. 1 to 9 of Table II, when the ceramic composition was gradually added to the calcined ash alone, the proportions of Al 2 O 3 and SiO 2 increased and the CaO and Fe 2 O 3 decreased. At the same time, the baking width spreads,
An increase in strength was observed. At the same time, it is recognized that the firing temperature needs to be increased.
本発明において見出された良好な組成として、焼却灰は
最高80％まで添加可能であることが確認された。そのと
きの各組成の比率はCaO/SiO2＝0.80、CaO/Al2O3＝2.9
1、Al2O3/SiO2＝0.27であった。As a good composition found in the present invention, it was confirmed that incineration ash can be added up to 80%. The ratio of each composition at that time is CaO / SiO 2 = 0.80, CaO / Al 2 O 3 = 2.9
1, Al 2 O 3 / SiO 2 = 0.27.
特に、CaO/SiO2、CaO/Al2O3の比率が前記焼却灰添加率
を80％以上とすることにより増加すると、焼成幅が狭く
なり、焼成体の変形が発現する。In particular, when the ratio of CaO / SiO 2 and CaO / Al 2 O 3 is increased by setting the incineration ash addition rate to be 80% or more, the firing width becomes narrow and the fired body is deformed.
なお、これらの比率が増加すると、発泡現象が現れる
（焼却灰100重量％の単味の場合に最も顕著であ
る。）。When these ratios increase, a foaming phenomenon appears (most prominent in the case of 100% by weight of incinerated ash alone).
焼成温度はCaO/SiO2、CaO/Al2O3の減少と共にやや上昇
させる必要がある。その範囲は約50℃〜100℃程度であ
る。また、Al2O3/SiO2の比率は、0.27〜0.26の範囲であ
ればよいことが判明した。The firing temperature needs to be slightly increased with the decrease of CaO / SiO 2 and CaO / Al 2 O 3 . The range is about 50 ° C to 100 ° C. It was also found that the Al 2 O 3 / SiO 2 ratio should be in the range of 0.27 to 0.26.
次に、具体的実施例を説明する。Next, specific examples will be described.
下水焼却灰 60％（重量百分率） セラミック配合物 40％（ 〃 ） 上記原料を乾式混合した後、縦110mm×横60mmの金型に
入れ、成形圧力50〜60kg/cm2で成形し、厚さ約1.5cmの
成形体を得た。成形体は約10％の含水率である。この成
形体を常温より70〜100℃/hrの昇温速度で加熱し、1150
℃において約30分間位焼成した結果、曲げ強さ320kg/cm
2、吸水率0.9〜1.0％、かさ比重1.87〜1.88の焼成体を
得た。この結果、焼成体の変形は認められなかった。Sewage incineration ash 60% (weight percentage) Ceramic mixture 40% (〃) After dry-mixing the above raw materials, put them in a mold of 110 mm in length x 60 mm in width, and mold at a molding pressure of 50-60 kg / cm 2 A molded body of about 1.5 cm was obtained. The shaped body has a water content of about 10%. This molded body is heated from room temperature at a temperature rising rate of 70 to 100 ° C / hr to 1150
Bending strength 320kg / cm as a result of baking for about 30 minutes at ℃
2. A fired product having a water absorption of 0.9 to 1.0% and a bulk specific gravity of 1.87 to 1.88 was obtained. As a result, no deformation of the fired body was observed.
種々の配合試験の結果、焼却灰の重量比率を80％、セラ
ミック配合物のそれを20％とするのが最も多量の焼却灰
の利用限度であり、それ以下の焼却灰の添加量であれ
ば、実施例に示す形状のセラミック製品を、建材として
使用可能な物性値において得ることが可能である。しか
し、焼却灰の添加量の少ない組成は本発明の目的に沿わ
ないことは明らかである。As a result of various compounding tests, the weight limit of incinerated ash is 80% and that of ceramic compound is 20% is the maximum use limit of incinerated ash. It is possible to obtain the ceramic products having the shapes shown in the examples in the physical property values that can be used as building materials. However, it is clear that a composition containing a small amount of incinerated ash does not meet the purpose of the present invention.
したがって、建材としての物性値と汚泥回収性との兼ね
合いにおいて、本発明は下水道焼却灰を最高80％まで
（セラミック配合物20％以上）添加することが可能であ
り、焼成温度を1100〜1200℃と一般セラミック焼成温度
よりも低温で、セラミック建材としての有効利用が可能
であることを見出した。Therefore, in the balance between the physical property value as a building material and the sludge recoverability, the present invention can add up to 80% of the sewer incineration ash (ceramic compound of 20% or more) at a firing temperature of 1100 to 1200 ° C. It was found that it can be effectively used as a ceramic building material at a temperature lower than the firing temperature of general ceramics.
発明の効果 本発明の以上の通り、下水道汚泥焼却灰の効果的な回収
及び有効利用を可能とするものである。特に、実施例に
示した灰60％、セラミック配合物40％の割合で焼成した
タイルを粉末ｘ線回折法により分析した結果、α石英
（SiO2）、クリストバライト（SiO2）及びアノルサイト
（CaO・Al2O3・2SiO2）等の結晶質又は微結晶の集合体
を含み、その他はガラス物質であることが判明した。こ
れは極めて安定なセラミック製品である。EFFECTS OF THE INVENTION As described above, the present invention enables effective collection and effective utilization of sewer sludge incineration ash. In particular, as a result of analysis by a powder x-ray diffraction method on tiles fired at a ratio of ash 60% and ceramic mixture 40% shown in the example, α quartz (SiO 2 ), cristobalite (SiO 2 ), and anorthite (CaO. Al 2 O 3 · 2SiO 2 ) and other crystalline or microcrystalline aggregates were included, and the others were found to be glass substances. This is a very stable ceramic product.
これらの具体的かつ有効な利用法については、内装又は
外装用建材としての他、下水道用陶管セラミックスや耐
火煉瓦（使用最高温度約1000℃〜1100℃）としても使用
可能であると考えられる。Regarding these concrete and effective uses, it is considered that they can be used not only as building materials for interior or exterior, but also as ceramics for sewer pipes and refractory bricks (maximum operating temperature of about 1000 ° C to 1100 ° C).
フロントページの続き (72)発明者 田中 稔也 京都府京都市右京区花園伊町41番地 (72)発明者 富田 浚次 京都府京都市山科区大宅甲ノ辻町21 有限 会社関厚運輸内 (72)発明者 安田 邦敏 京都府京都市東山区福稲下高松町11番地 (56)参考文献 特開 昭56−104776（ＪＰ，Ａ) 特開 昭62−212260（ＪＰ，Ａ) 特開 昭59−195571（ＪＰ，Ａ) 特開 昭62−176951（ＪＰ，Ａ)Front Page Continuation (72) Inventor Minoru Tanaka 41, Hanazono Imachi, Ukyo-ku, Kyoto-shi, Kyoto Prefecture (72) Inventor Yuuji Tomita 21 Oyako Kotsujicho, Yamashina-ku, Kyoto-shi, Kyoto Prefecture (72) Inventor of Kanko Transportation Co., Ltd. (72) Kunitoshi Yasuda 11-11 Fukuinashitatakamatsu-cho, Higashiyama-ku, Kyoto-shi, Kyoto (56) Reference JP-A-56-104776 (JP, A) JP-A-62-212260 (JP, A) JP-A-59-195571 (JP, 59-195571) A) JP-A-62-176951 (JP, A)
Claims (1)
の数分の１のAl2O3を含むセラミック材料とを混合し、
その組成を重量％においてSiO2が41〜66、Al2O3が11〜1
8、CaOが７〜33、Fe2O3が２〜８の範囲であって、かつC
aO/SiO2比が0.11〜0.86、CaO/Al2O3比が0.4〜3.0、Al2O
3/SiO2比が0.26〜0.28となるように調整し、この組成物
を建材固体として成形し、かつこれを常温より1100〜12
00℃まで昇温・加熱して焼結することを特徴とするセラ
ミックスの製造法。1. A mixture of sewage sludge incineration ash and a ceramic material containing SiO 2 as a main component and a fraction of Al 2 O 3 is mixed,
In the composition, the weight percentage of SiO 2 is 41 to 66, and Al 2 O 3 is 11 to 1
8, CaO in the range of 7 to 33, Fe 2 O 3 in the range of 2 to 8 and C
aO / SiO 2 ratio 0.11-0.86, CaO / Al 2 O 3 ratio 0.4-3.0, Al 2 O
3 / SiO 2 ratio is adjusted to be 0.26 ~ 0.28, this composition is molded as a building material solid, and this is 1100 ~ 12
A method of manufacturing ceramics, characterized by heating up to 00 ℃ and heating and sintering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63284564A JPH0684262B2 (en) | 1988-11-09 | 1988-11-09 | Manufacturing method of ceramics using sewage sludge incineration ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63284564A JPH0684262B2 (en) | 1988-11-09 | 1988-11-09 | Manufacturing method of ceramics using sewage sludge incineration ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02129061A JPH02129061A (en) | 1990-05-17 |
| JPH0684262B2 true JPH0684262B2 (en) | 1994-10-26 |
Family
ID=17680094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63284564A Expired - Fee Related JPH0684262B2 (en) | 1988-11-09 | 1988-11-09 | Manufacturing method of ceramics using sewage sludge incineration ash |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0684262B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100450898B1 (en) * | 2001-05-03 | 2004-10-01 | 송기도 | production of incinerated construction materials using wastewater sludge |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56104776A (en) * | 1979-06-16 | 1981-08-20 | Baansutoon Kk | Manufacture of material chiefly for public work and construction from raw material of sewage sludge and soft stone powder |
| JPS59195571A (en) * | 1983-04-15 | 1984-11-06 | 日本碍子株式会社 | Manufacture of lightweight aggregate from sludge |
| JPS62212260A (en) * | 1986-03-14 | 1987-09-18 | 明星工業株式会社 | Method of converting waste matter to ceramics |
-
1988
- 1988-11-09 JP JP63284564A patent/JPH0684262B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02129061A (en) | 1990-05-17 |
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