JPH0236297A - Production of soil improving agent utilizing sludge - Google Patents
Production of soil improving agent utilizing sludgeInfo
- Publication number
- JPH0236297A JPH0236297A JP63185746A JP18574688A JPH0236297A JP H0236297 A JPH0236297 A JP H0236297A JP 63185746 A JP63185746 A JP 63185746A JP 18574688 A JP18574688 A JP 18574688A JP H0236297 A JPH0236297 A JP H0236297A
- Authority
- JP
- Japan
- Prior art keywords
- ash
- sludge
- soil
- improving agent
- boiler ash
- 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
- 239000010802 sludge Substances 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000002689 soil Substances 0.000 title abstract description 17
- 239000003795 chemical substances by application Substances 0.000 title abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 235000013305 food Nutrition 0.000 claims abstract description 8
- 238000001704 evaporation Methods 0.000 claims abstract description 7
- 238000004056 waste incineration Methods 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000003516 soil conditioner Substances 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 238000002156 mixing Methods 0.000 abstract description 9
- 238000004898 kneading Methods 0.000 abstract description 3
- 235000015097 nutrients Nutrition 0.000 abstract description 2
- 230000001172 regenerating effect Effects 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 244000005700 microbiome Species 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 29
- 229910001868 water Inorganic materials 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000011282 treatment Methods 0.000 description 10
- 238000001035 drying Methods 0.000 description 9
- 235000019645 odor Nutrition 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 7
- 235000011941 Tilia x europaea Nutrition 0.000 description 7
- 239000002361 compost Substances 0.000 description 7
- 239000004571 lime Substances 0.000 description 7
- 239000011575 calcium Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000292 calcium oxide Substances 0.000 description 5
- 235000012255 calcium oxide Nutrition 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 238000000855 fermentation Methods 0.000 description 5
- 230000004151 fermentation Effects 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000003337 fertilizer Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000010794 food waste Substances 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 239000010871 livestock manure Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 229910001948 sodium oxide Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 241000283690 Bos taurus Species 0.000 description 1
- 241000244203 Caenorhabditis elegans Species 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 241000607142 Salmonella Species 0.000 description 1
- 241000607768 Shigella Species 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 206010000210 abortion Diseases 0.000 description 1
- 231100000176 abortion Toxicity 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 102220348226 c.58A>C Human genes 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 238000004889 fertilizer analysis Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000021962 pH elevation Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 238000009928 pasteurization Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は土壌改良剤の製造方法、特に従来各々別個に処
理されていた公害源である汚泥とボイラー灰とを混合利
用し、処理対策を一挙に解決すると共にその土壌改良剤
への活用を図る方法に関するものである。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a method for producing a soil conditioner, and in particular, to a method for producing a soil conditioner, in particular, a method for producing a soil conditioner, in particular, by using a mixture of sludge and boiler ash, which are pollution sources that were previously treated separately, and implementing treatment measures. This article relates to a method for solving the problem all at once and utilizing it as a soil improvement agent.
（従来の技術）
我々の日常生活には必然的に流動性廃棄物と固定性廃棄
物が発生する。(Prior Art) In our daily life, fluid waste and fixed waste are inevitably generated.
そこで、かかる廃棄物を有益な最終物に転換させ、再生
化を図ることが日常試みられている。Therefore, attempts are routinely made to convert such waste into useful final products and to recycle them.
例えば従来、活性汚泥法により処理の最終段階で沈澱し
た汚泥に対しでは自然発酵法、天日乾燥法、人口乾燥法
、焼却法、人口発酵法、石灰処理法などが知られている
。For example, conventional methods such as natural fermentation, solar drying, artificial drying, incineration, artificial fermentation, lime treatment, etc. are known for treating sludge precipitated in the final stage of treatment using activated sludge methods.
しかし自然発酵法は汚泥に生ゴミを加え、建築用ブロッ
ク材の形状に圧縮して自然発酵させるシステムであるが
自然発酵のため場所と時間が必要であり、必ずしも実用
に適しない。However, the natural fermentation method is a system in which food waste is added to sludge, compressed into the shape of building blocks, and fermented naturally, but natural fermentation requires space and time, and is not necessarily suitable for practical use.
天日乾燥法、人口乾燥法は前者は地理的条件により効率
が著しく左右され、広い面積を要し、後者は含水率が高
いためランニングコストが大となり、何れも経済性に問
題がある。The efficiency of the solar drying method and the artificial drying method is significantly affected by geographical conditions and requires a large area, while the latter has high running costs due to its high moisture content, so both methods have economical problems.
また、焼却法も焼却のだめの設備費が必要でランニング
コストの増大は免れず、人口発酵法は酸素供給、温度調
整、混合撹拌により最適のコンポストを作ることができ
るが、２〜３日の分解時間内では成熟あるいは安定した
コンポストを得ることはできない。In addition, the incineration method also requires equipment costs for the incineration tank, which inevitably increases running costs.The artificial fermentation method can produce optimal compost by supplying oxygen, adjusting the temperature, and mixing and stirring, but it decomposes within 2 to 3 days. It is not possible to obtain mature or stable compost in time.
そのため発酵槽内で一次分解させたものを更に２次分解
させる必要があり、設備費の増大が避けられない。更に
石灰処理法は汚泥に石灰を混入し造粒乾燥機で加熱反応
させ、石灰処理肥料を生産する方法であるが製品の臭気
に問題がある。Therefore, it is necessary to further perform secondary decomposition of the primary decomposition in the fermenter, and an increase in equipment costs is unavoidable. Furthermore, the lime treatment method is a method in which lime is mixed into sludge and subjected to a heating reaction in a granulation dryer to produce lime-treated fertilizer, but there is a problem with the odor of the product.
かように汚泥の活用は種々試みられているが何れも決め
手に欠け、充分な方法は見出されていない。Although various attempts have been made to utilize sludge, none of them have been found to be decisive, and no satisfactory method has yet been found.
一方、ボイラー灰、都市ゴミ焼却灰などについてはその
最終処理としてボイラー灰、都市ゴミ焼却灰などく以下
飛灰という）に水分を加え混練し発塵を防いで投棄する
加湿処理法や飛灰に重量比１０〜２０％のポルトランド
セメント及び水を加え混練した後、造粒し貯槽へ送風し
乾燥を行い投棄するセメント同化法などがあるがこれら
は何れも投棄に便ならしめるためのものであり、充分な
活用には至っていない。On the other hand, the final treatment for boiler ash, municipal waste incineration ash, etc. is to add moisture to the boiler ash, municipal waste incineration ash, etc. (hereinafter referred to as fly ash), knead it, prevent dust generation, and then dump it using a humidification treatment method. There is a cement assimilation method in which 10 to 20% by weight of Portland cement and water are added and kneaded, then granulated, blown into a storage tank, dried, and then dumped, but all of these methods are for convenience in dumping. , it has not been fully utilized.
更に魚滓、残飯、野菜屑などの食品屑の処理としてこれ
らを無注水減圧乾燥して飼料に再生したり、反応撹拌槽
で粉砕、混合しながら薬品を添加し２〜５１１φの粒状
にして有機物質たい肥あるいはアルカリ分子を添加して
土壌の酸性化を防ぎアルカリ化を促進させるために利用
することも行われる。In addition, food scraps such as fish scraps, leftover food, and vegetable scraps can be recycled into feed by drying them under reduced pressure without pouring water, or are pulverized in a reaction agitation tank, and chemicals are added while mixing to make them into granules with a diameter of 2 to 511 mm. It is also used to prevent soil acidification and promote alkalinization by adding material compost or alkaline molecules.
（発明が解決しようとする課題）
以上のように従来、汚泥やボイラー灰に関しては各々別
々に処理がなされており、何れもその活用に意が注がれ
ている。(Problems to be Solved by the Invention) As described above, conventionally, sludge and boiler ash have been treated separately, and attention has been paid to their utilization.
しかしながら、上記の各方法においても汚泥とボイラー
灰とを同時に利用し両者の処理を一挙に解決しようとす
るものはない。However, none of the above-mentioned methods utilizes sludge and boiler ash at the same time to solve the problem of treating both at once.
そこで、本発明者は上述のような実状に対処し特に上記
側々に相反する方法で処理されていた都市ゴミ焼却灰、
ボイラー灰と食品加工工場などの有機的汚泥との混合を
図り、両者の処理を一挙に解決すると共に、有機性汚泥
に含まれているを機動に着目し土壌改良剤としての活用
を図ることを目的として上記都市ゴミ焼却灰、ボイラー
灰の如き灰分と食品加工工場において活性汚泥法により
沈澱した有機性汚泥とを高真空下、加熱撹拌しながら混
練し、真空乾燥により水分の強制蒸発を図り臭気を除去
して粉粒状の土壌改良剤を得る方法を提案した。Therefore, the inventors of the present invention dealt with the above-mentioned actual situation, and in particular, investigated municipal waste incineration ash, which had been treated in a manner contradictory to the above-mentioned methods.
By mixing boiler ash and organic sludge from food processing factories, we aim to solve the problem of both treatments at once, and also aim to utilize the organic sludge as a soil conditioner by focusing on the organic sludge contained in it. The purpose is to mix ash such as the above-mentioned municipal waste incineration ash and boiler ash with organic sludge precipitated by the activated sludge method in a food processing factory under high vacuum while heating and stirring, and to forcefully evaporate water through vacuum drying to remove odor. We proposed a method to obtain a granular soil conditioner by removing .
しかし更に上記方法について検討を重たところ、上記方
法は真空下に限らず、大気圧状態下においても充分適用
可能であることが判明した。However, upon further study of the above method, it was found that the above method is fully applicable not only under vacuum conditions but also under atmospheric pressure conditions.
即ち、本発明はさきに提案した上記有機性汚泥とボイラ
ー灰などとの高真空下、加熱乾燥による土壌改良剤の製
造を更に発展拡張し、大気圧状態下においてより簡単に
実施することを目的とするものである。That is, the present invention aims to further develop and expand the previously proposed production of a soil conditioner by heating and drying organic sludge and boiler ash under high vacuum, and to more easily carry out the production under atmospheric pressure conditions. That is.
（課題を解決するための手段）
上記目的に適合する本発明の特徴は前記都市ゴミ焼却灰
、ボイラー灰の如き天分と活用汚泥法により生じたを機
外汚泥とを大気圧状態下において加熱撹拌を行い、混練
しながら水分ならびに臭気の蒸発を図り、粉粒状化して
土壌改良剤を得ることにある。(Means for Solving the Problems) A feature of the present invention that satisfies the above-mentioned object is that natural materials such as municipal waste incineration ash and boiler ash and external sludge produced by the utilization sludge method are heated under atmospheric pressure. The purpose is to evaporate water and odor while stirring and kneading, and to obtain a soil conditioner by pulverizing the material.
（作用）
通常、上記混合される有機性汚泥には８０〜９０％の水
分と共に植物に必要な窒素、リン、カリの３要素と、た
い肥に匹敵する有機物を多量に含有する。(Function) Normally, the organic sludge mixed above contains 80 to 90% water, three elements necessary for plants, nitrogen, phosphorus, and potassium, and a large amount of organic matter comparable to compost.
従って、かかる汚泥をボイラー灰と上記本発明の如く加
熱撹拌混練するときはボイラー灰に含まれている二酸化
ケイ素、アルミナ、酸化ナトリウム、酸化カルシウム、
炭素と反応し
ＣａＯ＋Ｈ２０→Ｃａ（ＯＨ）ｚ ＋２３６ Ｃａｌ／
ｍｄＮａｚＯ−１１１ｚＯ→Ｎｚ０Ｈ
５ｉＯ２＋２ＮｚＯＨ−ＮａｚＳｉＯｚ ＋ＨｚＯＡ
Ｉ−２０３＋ ２ＮｚＯＨ−２ＮｚＡ ｊｌ！ ０□＋
ＨｚＯとなる。Therefore, when such sludge is mixed with boiler ash by heating and stirring as in the present invention, silicon dioxide, alumina, sodium oxide, calcium oxide, etc. contained in the boiler ash,
Reacts with carbon and becomes CaO+H20→Ca(OH)z +236 Cal/
mdNazO-111zO→Nz0H 5iO2+2NzOH-NazSiOz +HzOA
I-203+ 2NzOH-2NzA jl! 0□+
It becomes HzO.
従ってＣａ （ＯＨ） ２によりアルカリ性を有し酸性
土壌や低養分土壌に帯する土壌改良剤が得られる。Therefore, Ca (OH) 2 provides a soil improvement agent that has alkalinity and is suitable for acidic soils and low-nutrient soils.
なお、灰分に含まれている炭素は臭気を吸着し脱臭作用
を有する。Note that the carbon contained in the ash adsorbs odors and has a deodorizing effect.
（実施例） 以下、更に上記本発明方法の具体的実施例を説明する。(Example) Hereinafter, further specific examples of the above method of the present invention will be described.
図は本発明製造方法の実施に使用される混合撹拌槽の概
要を示しており、図において（１１は混合撹拌槽、（２
）は活性汚泥法により沈澱した食品加工工場の有機性汚
泥及びボイラー灰の送入口、（３）は減速機（５）に連
結された撹拌軸（４）に取り付けられた撹拌羽根、（６
）は加熱ジャケット、（７）は得られた粉粒状土壌改良
剤の送出口、（８）は水分ならびに臭気蒸発口であり、
土壌改良剤を製造するにあたっては前記活性汚泥法によ
り沈澱生成した有機性汚泥とボイラー灰とを上記送入口
（２）を通じて槽（１）内へ送入し槽（１１内で加熱撹
拌混練しつつ乾燥により含有水分を蒸発口（８）を通じ
て蒸発させ同時に臭気を併せて除去し、得られた汚泥と
ボイラー灰との反応物を粉粒状として送出口（７）より
送り出すことによって得ることができる。The figure shows an outline of the mixing and stirring tank used to carry out the production method of the present invention.
) is an inlet for organic sludge and boiler ash from a food processing factory precipitated by the activated sludge method, (3) is a stirring blade attached to a stirring shaft (4) connected to a reducer (5), (6
) is a heating jacket, (7) is a delivery port for the obtained granular soil conditioner, (8) is a water and odor evaporation port,
In producing the soil conditioner, organic sludge precipitated by the activated sludge method and boiler ash are fed into the tank (1) through the inlet (2) and heated, stirred and kneaded in the tank (11). It can be obtained by drying to evaporate the water content through the evaporation port (8) and remove odor at the same time, and then sending the resulting reaction product of sludge and boiler ash out of the delivery port (7) in the form of powder.
次に上記混合撹拌槽を用い土壌改良剤を製造する場合の
状況について述べると、先ず利用される前記有機性汚泥
としては植物に必要な窒素、リン、カリの３要素とたい
肥に匹敵する有機物を多量に含有する。Next, we will discuss the situation when producing a soil conditioner using the above-mentioned mixing tank. First, the organic sludge used contains three elements, nitrogen, phosphorus, and potassium, which are necessary for plants, and organic matter comparable to compost. Contains a large amount.
これを肥料分析法により測定し、例示するば汚泥（水分
８０〜９０％）には
窒素（Ｎ） ３．６〜０．６％
リン酸（ＰｚＯｓ） １．９〜０．５５％カリウム（
Ｋ２Ｏ） ０．２３〜０．１５％カルシウム（Ｃａｂ
） １〜４ ％の各要素が含まれる。This is measured by the fertilizer analysis method. For example, sludge (80-90% moisture) contains nitrogen (N) 3.6-0.6% phosphoric acid (PzOs) 1.9-0.55% potassium (
K2O) 0.23-0.15% Calcium (Cab
) 1 to 4% of each element is included.
一方、ボイラー灰成分としてはＪＩＳ−Ｍ−８８１５に
よれば、
二酸化ケイ素（ＳｉＯｚ） ３１．３〜７．９
％アルミナ（ＡβｚＬ） １８．４〜２．２
％酸化鉄（ＦｅｚＯ：＋） ４．４８〜０
．６４％酸化ナトリウム（ＮａＪ） ０．８７〜
０．０９８％酸化カルシウム（Ｃａｂ） ９
〜６０％酸化マグネシウム（ＭｇＯ） ０．６７〜
１．５％酸化チタン（ＴｔＯ□） １．０７
〜０．２２％炭素（Ｃ） ２２．４
〜２％水分 ０．９〜０％などが
含まれる。On the other hand, according to JIS-M-8815, the boiler ash component is silicon dioxide (SiOz) 31.3 to 7.9
%Alumina (AβzL) 18.4~2.2
% iron oxide (FezO:+) 4.48~0
．． 64% Sodium oxide (NaJ) 0.87~
0.098% Calcium oxide (Cab) 9
~60% Magnesium oxide (MgO) 0.67~
1.5% titanium oxide (TtO□) 1.07
~0.22% Carbon (C) 22.4
~2% moisture, 0.9~0%, etc. are included.
そこで、これら両者を槽内に送り込み混合すればボイラ
ー灰の水分量より全体の含水量は低下し乾燥水分が低減
する。Therefore, if both of these are fed into the tank and mixed, the total water content will be lower than the water content of the boiler ash, and the dry water content will be reduced.
そして混合撹拌槽（１）内において加熱ジャケット（６
）の温度を約１５０℃又はそれ以上に保持し加熱混練す
ると前述の如き化学反応、即ち、
ＣａＯ＋Ｈ２Ｏ→Ｃａ（ＯＨ）ｚ ＋２３６ Ｃａｌ
／ｍｄＮａｚＯ＋ ＨｚＯ→Ｎ２０Ｈ
５ｉＯ，＋２Ｎ２０Ｈ−Ｎａ２ＳｉＯ，＋ＨｚＯ八２□
へｈ ”２ＮｚＯＩｌ →２Ｎ２Ａ Ｎ Ｏ□＋１１
□０によりＮａｚＳｉＯｚが得られる。Then, the heating jacket (6
) is maintained at about 150°C or higher and heated and kneaded, the chemical reaction described above occurs, namely, CaO+H2O→Ca(OH)z +236 Cal
/mdNazO+ HzO→N20H 5iO, +2N20H-Na2SiO, +HzO82□
Heh ”2NzOIl →2N2A N O□+11
□0 gives NazSiOz.
この場合、槽内における有機性汚泥などに含まれる水分
は加熱により上部の蒸発口（８）より蒸発し同時に臭気
も蒸発され、共に除去されることになる。In this case, the water contained in the organic sludge or the like in the tank evaporates from the upper evaporation port (8) by heating, and at the same time, the odor is also evaporated and removed together.
なお、殺菌は常圧低温殺菌法により下記方法、即ち、
赤痢菌 ４５゛Ｃ
回虫生卵 ５０°Ｃ
牛流産菌 ５５℃
サルモネラ菌 ６０°Ｃ
大腸菌 ６０゛Ｃ
Ｘ３０秒
Ｘ６０秒
Ｘ６０秒
Ｘ３０秒
Ｘ６０秒
の各方法でもよいが、本発明による真空沸騰殺菌はより
完全に汚泥中の殺菌を行うことが可能となる。In addition, sterilization was carried out by the following method using atmospheric pasteurization method: Shigella 45゛C Raw roundworm eggs 50℃ Bovine abortion bacteria 55℃ Salmonella 60℃ Escherichia coli 60゛C X 30 seconds X 60 seconds X 60 seconds X 30 seconds Although any method may be used, the vacuum boiling sterilization method according to the present invention enables more complete sterilization of sludge.
このようにして槽（１）内で反応して得られ、送出口（
７）を通じて送り出される生成物は、下記の如き組成、
水分 ３０〜４０％
有機質 ２０〜４０％
Ｐ２Ｏ，０，６〜２％
Ｎ １〜４％
Ｋｚｏ ０．２〜０．５％Ｃａ （ＯＨ）
ｚ ５〜２０％５ｔＯｚ
ｉｏ〜２０％
Ａβ２０． ５〜１０％
Ｆｅ２Ｏ：＋１〜５％
ＭｇＯ０，７〜１．５％
０ ５〜３０％
２Ｎ２Ａ ｆｆ Ｏ□
を有し、ＰＨ９〜１２のアルカリ性を有し、たい肥の効
果が存在する。In this way, it is obtained by reacting in the tank (1), and the outlet port (
The product sent through 7) has the following composition: Moisture 30-40% Organic 20-40% P2O, 0.6-2% N 1-4% Kzo 0.2-0.5% Ca (OH)
z 5-20% 5tOz
io~20% Aβ20. It has 5-10% Fe2O: +1-5% MgO0.7-1.5% 0 5-30% 2N2A ff O□, has alkalinity of PH9-12, and has the effect of compost.
従ってこれを酸性土壌（ＰＩ＋５〜６）や低養分土壌に
使用すると土壌改良の役目を果たす。Therefore, when used in acidic soil (PI+5 to 6) or low-nutrient soil, it serves as a soil improvement agent.
即ち、近時、慣行栽培では化学肥料が偏重される傾向が
強い反面、基礎的条件である耕地への堆厩肥やを機動の
段用は減少し各種農薬の濫用が一般化した。In other words, in recent years, there has been a strong tendency for conventional cultivation to place too much emphasis on chemical fertilizers, but on the other hand, the use of manure and manure on arable land, which is a basic condition, has decreased, and the overuse of various agricultural chemicals has become common.
そのため耕地の地力が衰え、土壌が酸性化の方向に進み
、農作物の成育不良地域が増加した。As a result, the fertility of arable land has declined, the soil has become more acidic, and the number of areas with poor crop growth has increased.
そして、この対策としてカルシウム（石灰）による中和
方式がとられ、石灰質資材の施用が常識化し無意識に用
いられる傾向があり、地域によって石灰過剰による弊害
も出はじめている。As a countermeasure to this problem, a neutralization method using calcium (lime) has been adopted, and the application of calcareous materials has become commonplace and tends to be used unconsciously, and in some regions, the harmful effects of excessive lime are beginning to appear.
本発明による土壌改良剤はかかる石灰による中和対策の
弊害を防ぎ、特に食品加工工場における有機性汚泥の利
用により有機物段用効果を促すものである。The soil conditioner according to the present invention prevents the adverse effects of such neutralization measures using lime, and particularly promotes the effect of organic sludge through the use of organic sludge in food processing factories.
なお、コンポスト （たい肥）は量が多い場合有機物の
分解速度が遅延する。Note that if the amount of compost is large, the decomposition rate of organic matter will be delayed.
一般にコンポスト時の最適Ｃ／Ｎ （Ｃは炭素、Ｎは窒
素）比は２０だと云われている。It is generally said that the optimum C/N ratio (C is carbon, N is nitrogen) is 20 when composting.
本発明によりボイラー灰を加えるときはこの最適コンポ
スト比に近づけることができる。According to the present invention, this optimum composting ratio can be approached when adding boiler ash.
（発明の効果）
本発明は以上のように食品加工工場などから生じる有機
性汚泥とボイラー等から生成される天分とを混練し加熱
乾燥により土壌改良剤に製造する方法であり、従来、脱
水し、廃棄されていた有機性汚泥をその含有される成分
要素を活用しボイラー灰との混合によりＰＨ９〜１２の
アルカリ性となし、現在、肥料過剰より屡々酸性化した
土壌を有機質が植物に吸収される肥料となるために必要
な、そしてＰＨ６〜７で微生物の活動が活溌となる土壌
に再生させることは勿論、養分の少ない土壌に対する養
分補強を達成せしめる土壌改良剤としての利用をはかる
と共に特にボイラー灰等との混合により、従来利用が制
約されていたボイラー灰などの活用の途を開き有機性汚
泥の造粒化を容易ならしめる顕著な効果を奏する。(Effects of the Invention) As described above, the present invention is a method for producing a soil conditioner by kneading organic sludge generated from food processing factories, etc. and natural ingredients generated from boilers, etc., and heating and drying. By making use of the constituent elements contained in discarded organic sludge and mixing it with boiler ash, it is made alkaline with a pH of 9 to 12. At present, the soil, which is often acidified due to excessive fertilizers, can be absorbed by plants. In addition to regenerating the soil, which is necessary to become a fertilizer and where microbial activity becomes active at a pH of 6 to 7, it can also be used as a soil conditioner to achieve nutrient reinforcement for nutrient-poor soil, and especially for boilers. By mixing it with ash, etc., it has the remarkable effect of opening the way to the use of boiler ash, whose use was previously restricted, and facilitating the granulation of organic sludge.
また、本発明はその製造において大気圧下で加熱乾燥す
ることにより比較的簡単に行うことができるのみならず
、水分の蒸発と共に臭気も蒸発され、従来、臭気に悩ま
されていた有機性汚泥の処理を良好雰囲気下で行うこと
ができる利点もある。In addition, the production of the present invention is not only relatively simple by heating and drying under atmospheric pressure, but also the odor is evaporated with the evaporation of water, eliminating the problem of organic sludge, which has conventionally suffered from odor. Another advantage is that the treatment can be carried out under a favorable atmosphere.
更にボイラー灰分の使用により汚泥処理に用いられてい
た生石灰の使用を簡易化し、かつボイラー灰の公害対策
をも同時に解決することができ、公害処理の一環として
本発明はその実用的効果が高く評価される。Furthermore, the use of boiler ash simplifies the use of quicklime used in sludge treatment, and at the same time solves the problem of boiler ash pollution.The present invention has been highly praised for its practical effects as part of pollution treatment. be done.
図は本発明の実施に使用する槽の１例を示す略示図であ
る。
（旧・・混合撹拌槽、 （２）・・・送入口、（３）・
・・撹拌羽根、 （４）・・・撹拌軸、（５）・・・減
速機、 （６）・・・加熱ジャケット、（７）・・・送
出口、 （８）・・・蒸発口。The figure is a schematic diagram showing one example of a tank used in carrying out the present invention. (Former...mixing stirring tank, (2)...inlet, (3)...
... Stirring blade, (4) ... Stirring shaft, (5) ... Reducer, (6) ... Heating jacket, (7) ... Delivery port, (8) ... Evaporation port.
Claims (1)
有機質汚泥と都市ゴミ焼却灰、ボイラー灰の如き灰分と
を混合し、大気圧下で、加熱撹拌混練し、乾燥を行うこ
とにより水分ならびに臭気を蒸発させ、上記汚泥と灰分
を粉粒状に形成することを特徴とする汚泥利用の土壌改
良剤の製造方法。1. Mix organic sludge produced by the activated sludge method in food processing factories with ash such as municipal waste incineration ash or boiler ash, heat, stir, knead, and dry under atmospheric pressure to remove moisture and odor. A method for producing a soil conditioner using sludge, which comprises evaporating the sludge and ash to form powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63185746A JPH0236297A (en) | 1988-07-26 | 1988-07-26 | Production of soil improving agent utilizing sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63185746A JPH0236297A (en) | 1988-07-26 | 1988-07-26 | Production of soil improving agent utilizing sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0236297A true JPH0236297A (en) | 1990-02-06 |
Family
ID=16176135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63185746A Pending JPH0236297A (en) | 1988-07-26 | 1988-07-26 | Production of soil improving agent utilizing sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0236297A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09111238A (en) * | 1995-10-18 | 1997-04-28 | Honsyu Sangyo Kk | Soil modifier and its production |
| JP2001261477A (en) * | 2000-03-24 | 2001-09-26 | Nippon Paper Industries Co Ltd | Method for manufacturing organic fertilizer and/or soil conditioner |
| JP2008091255A (en) * | 2006-10-03 | 2008-04-17 | Sony Corp | Input switchover apparatus, input switching method and program |
| US8083352B2 (en) | 2008-08-25 | 2011-12-27 | Tomohiro TSUTA (Master's Degree of Economics of the University of Tokyo) | Perimeter |
| US8335320B2 (en) | 2006-10-03 | 2012-12-18 | Sony Corporation | Audio apparatus |
| CN107118052A (en) * | 2017-03-20 | 2017-09-01 | 江西师范大学 | A kind of ecological organic soil circulation conditioner and preparation method thereof |
| CN111011160A (en) * | 2019-12-30 | 2020-04-17 | 滁州联润生态农业发展有限公司 | Nutrient soil for planting landscaping nursery stocks |
-
1988
- 1988-07-26 JP JP63185746A patent/JPH0236297A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09111238A (en) * | 1995-10-18 | 1997-04-28 | Honsyu Sangyo Kk | Soil modifier and its production |
| JP2001261477A (en) * | 2000-03-24 | 2001-09-26 | Nippon Paper Industries Co Ltd | Method for manufacturing organic fertilizer and/or soil conditioner |
| JP2008091255A (en) * | 2006-10-03 | 2008-04-17 | Sony Corp | Input switchover apparatus, input switching method and program |
| US8335320B2 (en) | 2006-10-03 | 2012-12-18 | Sony Corporation | Audio apparatus |
| US8948413B2 (en) | 2006-10-03 | 2015-02-03 | Sony Corporation | Audio apparatus |
| US8083352B2 (en) | 2008-08-25 | 2011-12-27 | Tomohiro TSUTA (Master's Degree of Economics of the University of Tokyo) | Perimeter |
| CN107118052A (en) * | 2017-03-20 | 2017-09-01 | 江西师范大学 | A kind of ecological organic soil circulation conditioner and preparation method thereof |
| CN111011160A (en) * | 2019-12-30 | 2020-04-17 | 滁州联润生态农业发展有限公司 | Nutrient soil for planting landscaping nursery stocks |
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