JP3980008B2 - Soil conditioner - Google Patents
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- JP3980008B2 JP3980008B2 JP2004075290A JP2004075290A JP3980008B2 JP 3980008 B2 JP3980008 B2 JP 3980008B2 JP 2004075290 A JP2004075290 A JP 2004075290A JP 2004075290 A JP2004075290 A JP 2004075290A JP 3980008 B2 JP3980008 B2 JP 3980008B2
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Description
本発明は，廃石こうボードなどの石こう廃材より回収された廃石こうおよび廃食油をリサイクルして土壌改良剤として再利用する技術に関する。
〔背影技術〕The present invention relates to a technology for recycling waste gypsum and waste cooking oil collected from gypsum waste materials such as waste gypsum board and reusing it as a soil conditioner.
[Back shadow technology]
統計によれば廃石こうは年間約１２６万トン，廃食油は年間約４０万トン（業務用約２０万トン，一般家庭から約２０万トン）が排出されているとされている。According to statistics, waste gypsum is discharged about 1.26 million tons per year, and waste cooking oil is about 400,000 tons per year (about 200,000 tons for business use, about 200,000 tons from ordinary households).
廃石こうを再生して焼石こうとして石こうボードに再利用する技術は確立されているが，該石こうの結晶が微細であることや混練時の水比が増大し強度が低下するなどの技術上の問題および経済性の点から，廃石こうの再生焼石こうへのリサイクル率は低く埋めたて処分されているのが大半というのが現状である。Technology for reclaiming waste gypsum and reusing it as calcined gypsum for gypsum board has been established. However, technical matters such as the fact that the gypsum crystals are fine and the water ratio during kneading increases and the strength decreases. From the point of view of problems and economy, the recycling rate of waste gypsum to reclaimed gypsum is mostly low and buried and disposed of.
また，廃食油は業務上発生する約２０万トンについては回収再利用が比較的普及しているが，家庭より排出される約２０万トンについては回収システムが未整備であり大別して下記の処理が行われている。
（１）各家庭で吸わせるか固めてごみとして廃棄する。
（２）手づくり石けんの材料として利用する。
（３）軽油代替燃料として再生利用する。
〔発明の開示〕
〔発明が解決しようとする課題〕In addition, about 200,000 tons of waste cooking oil is recovered and reused is relatively widespread, but about 200,000 tons discharged from households has not yet been recovered and is roughly classified as follows. Has been done.
(1) Let each household suck or harden it and dispose of it as garbage.
(2) Used as a material for handmade soap.
(3) Recycle as an alternative to light oil.
[Disclosure of the Invention]
[Problems to be Solved by the Invention]
ところが，廃石こうボードは複合材であることから異物たとえば壁紙が６〜８％含まれており，これを再生焼石こうとして再利用普及するためにはその分離が必要であり生産性，経済性の点で問題があるとされている。
また，廃棄物としての埋めたて処分地の確保も年ごとに困難さを増しつつある。However, because waste gypsum board is a composite material, it contains 6-8% of foreign material, such as wallpaper. In order to reuse it as recycled gypsum, it is necessary to separate it and improve productivity and economy. There is a problem in that.
In addition, it is becoming more difficult to secure a landfill site as waste every year.
一方，廃食油の焼却に際して発生する二酸化炭素ガスは重量比で約７０％（炭素換算）とされているので，約２０万トンの廃食油の焼却によって生じる二酸化炭素量は約１４万トンとなり家庭よりごみとして排出される廃食油を焼却処理することは地球温暖化防止上好ましいことでない。
また，廃食油を軽油代替燃料として再生利用することは，それなりに意義があるがエンジン内で形を変えて燃焼させるので二酸化炭素削減の観点からは上記の焼却処理と大差はない。On the other hand, carbon dioxide gas generated when incinerated waste cooking oil is about 70% by weight (carbon conversion), so the amount of carbon dioxide produced by incineration of about 200,000 tons of waste cooking oil is about 140,000 tons. Incineration of waste cooking oil discharged as more waste is not preferable for preventing global warming.
Recycling waste cooking oil as an alternative to light oil is meaningful as it is, but it is not much different from the above incineration treatment from the viewpoint of carbon dioxide reduction because it is changed in shape and burned in the engine.
以上要するに，廃石こうについてはとくに今後の埋めたて処分地の確保の問題，廃食油については二酸化炭素削減の問題で従来技術ではこれらを解決できず新しい発想による技術的解決が望まれている現状にある。In short, waste gypsum is a problem of securing a landfill site in the future, and waste cooking oil is a problem of carbon dioxide reduction. It is in.
本発明は，上述の現状に鑑みなされたもので，６〜８％の紙その他の異物を含有した廃石こうを焼石こうに再生する工程を経ずにそのままの形で廃食油と共用して，前述の課題を解決し廃石こうと廃食油とをリサイクル利用する技術を提供することを目的としている。
〔課題を解決するための手段〕The present invention has been made in view of the above-mentioned present situation, and is used in common with waste cooking oil without undergoing a process of regenerating waste gypsum containing 6 to 8% paper or other foreign matter into gypsum, The object is to provide a technology for reusing waste gypsum and waste cooking oil by solving the aforementioned problems.
[Means for solving the problems]
前記目的を達成するために，本発明者は古来とくに農村地域で廃食油が有機質肥料源としてたとえば植木のまわりに穴を掘って埋めることが行われてきたこと，また，石こう（硫酸カルシウム）がカルシウムの供給源として土壌改良資材として用いられていることに着目して，この両材料を結合して新しいタイプの土壌改良剤とすることを検討した結果In order to achieve the above-mentioned object, the present inventor has traditionally used waste cooking oil as a source of organic fertilizer, for example, by digging holes around planted trees and filling it with gypsum (calcium sulfate). Focusing on the fact that it is used as a soil improvement material as a source of calcium, the results of studying the combination of both materials into a new type of soil improvement agent
（１）廃石こうに焼石こうを加えて廃食油で湿潤した後水を加えてかきまぜると，廃石こうを核としてそのまわりに廃食油を巻きこんだ形で焼石こうによる固結物が形成され一体的なべとつきのない固結生成物がえられること。
（２）生成物に廃食油を多く含ませるには，焼石こうと吸液性の粉末またはか粒とくに細孔をもった粉末またはか粒を併用すれば効果があること。
（３）土壌改良剤として用いた際の害虫忌避効果を付与するために，水として木酢液を用いることが有効なこと。
を見出して本発明を完成したものである。(1) After adding the calcined gypsum to the waste gypsum, moistening with the waste edible oil, and adding water and stirring, a solidified product is formed by the gypsum with the waste gypsum as the core and the waste edible oil wrapped around it. A caking product with no stickiness can be obtained.
(2) To contain a lot of waste cooking oil in the product, it is effective to use calcined gypsum and liquid-absorbing powder or granule, especially powder or granule with pores.
(3) In order to give a pest repellent effect when used as a soil conditioner, it is effective to use wood vinegar as water.
And the present invention has been completed.
すなわち，本発明は廃石こうに対し特定比で焼石こうと廃食油および水を配合して固結させてえられる土壌改良剤を要旨としている。
〔発明の効果〕That is, the gist of the present invention is a soil improver obtained by mixing caking gypsum with waste cooking oil and water in a specific ratio with respect to waste gypsum and solidifying the mixture.
〔The invention's effect〕
従来は埋めたてるべき廃棄物が有効利用されることによる埋立地の延命に寄与すること，および廃食油の焼却による二酸化炭素の発生を削減できることは地球環境保全の面で大きい効果をもつものである。この点は従来技術で到底達成できなかったものである。In the past, contributing to extending the life of landfills through the effective use of waste to be filled, and reducing the generation of carbon dioxide due to incineration of waste cooking oil have great effects in terms of global environmental conservation. is there. This point could not be achieved with the prior art.
本発明土壌改良剤は，本来は廃棄していた廃石こうと廃食油とを主材料としているので材料面で安価であり，また，調製するのに加熱が不要でミキサーで３〜１０分間かきまぜて自然乾燥すればよく製造コストが安くつき経済性がすぐれている。The soil conditioner of the present invention is made of waste gypsum and waste cooking oil, which were originally discarded, so that it is inexpensive in terms of materials. In addition, it does not require heating to prepare and is stirred for 3 to 10 minutes with a mixer. It can be dried naturally and the manufacturing cost is low and it is economical.
廃石こうは，土壌中に入って害を及ぼす有害重金属や有害化学物質を含有していない限り紙類や繊維くずを分離する必要もなく使用でき，また，廃食油も揚げ物かすが入っていてもそのまま利用できるので材料面での確保が容易である利点がある。Waste gypsum can be used without the need to separate paper and textile waste as long as it does not contain harmful heavy metals or harmful chemicals that can enter the soil and cause damage, and waste cooking oil can be used as it is even if it contains fried residue. Since it can be used, there is an advantage that it is easy to secure in terms of material.
土壌改良剤はべとつきのない粉状乃至は粒状物としてえられるので取扱に便利であり，田畑などの農地，家庭園芸，または公園などの緑地に用いて有機質肥料およびカルシウムの補給源として有用であり廃棄物のリサイクル有効利用としての効果は大きいものがある。
〔発明を実施するための最良の形態〕The soil conditioner is convenient for handling because it can be obtained as a non-sticky powder or granular material, and is useful as a supply source of organic fertilizer and calcium when used in farmland such as fields, home gardening, or green spaces such as parks. There are significant effects as an effective recycling of waste.
[Best Mode for Carrying Out the Invention]
本発明で用いる廃石こうとしては，廃石こうボードその他の石こう製品から分離した石こうであればとくに制限することなく用いうる。含まれる石こう分以外の異物については，土壌中に入れた場合土壌の汚染の原因になる物質たとえば有害重金属や有害化学物質でなければ５０重量％以下の混入率で許容されるが好ましくは３０重量％以下が望ましい。As the waste gypsum used in the present invention, any gypsum separated from waste gypsum board or other gypsum products can be used without particular limitation. Contaminants other than gypsum contained are allowed at a contamination rate of 50% by weight or less unless it is a substance that causes soil contamination such as harmful heavy metals or chemicals when placed in soil, but preferably 30%. % Or less is desirable.
用いる廃食油としては，たとえば揚げ物かすなどの食品かすが混入していてもとくに問題なく用いうるが，古くなって酸敗し異臭を放つ廃食油の使用は爾後の土壌改良剤として取扱いに不利であるから使用をさけた方が望ましい。As waste cooking oil to be used, it can be used without any problem even if it contains food waste such as fried grounds. However, the use of waste cooking oil that becomes stale and gives off a bad smell is disadvantageous in handling as a soil conditioner after drought. It is better to avoid using it.
焼石こうとしては，硫酸カルシウムの一水塩または半水塩であればその製法，粒度に関係なく用いることができる。
また，水については精製水とする必要はなく一般に用いる水道水でよい。肥効効果を付与するために用いる水に液肥を混合することは任意に行ってよい。As calcined gypsum, monohydrate or hemihydrate of calcium sulfate can be used regardless of its production method and particle size.
Moreover, it is not necessary to use purified water, and tap water generally used may be used. Mixing liquid fertilizer with water used for imparting a fertilizing effect may be performed arbitrarily.
本発明は廃石こうと廃食油とを土壌改良剤に再利用する技術を主とするが，えられた土壌改良剤に施用すべき用土中の害虫忌避や殺菌の作用効果を付与するために望ましくは用いる水として木酢液を用いた方がよい。Although the present invention is mainly based on the technology of reusing waste gypsum and waste cooking oil as a soil conditioner, it is desirable to provide pest repellent and sterilization effects in the soil to be applied to the obtained soil conditioner. It is better to use wood vinegar as the water to be used.
本発明でえられる土壌改良剤に，構成成分として比較的多くの廃食油を含ませたい場合は，吸液性の粉末またはか粒を焼石こうと併用することが効果的であることは前述したが，この目的で用いられる材料としては構造的に細孔をもった酸化アルミニウム，ゼオライト，軽石またはパルプやセルロースが好適に用いられる。その用いる量は，経済性から焼石こうに対して１〜２０重量％が望ましい。As described above, it is effective to use a liquid-absorbing powder or granule together with calcined gypsum when it is desired to include a relatively large amount of waste cooking oil as a constituent in the soil conditioner obtained in the present invention. However, as the material used for this purpose, aluminum oxide, zeolite, pumice, pulp or cellulose having a structural pore is preferably used. The amount to be used is preferably 1 to 20% by weight based on the calcined gypsum from the viewpoint of economy.
本発明で用いる各成分の量比は、廃石こうに対して焼石こうを80〜100重量％廃食油を110〜140重量％を用いるものであり、廃石こうの含水率および廃食油の粘度およびえられる土壌改良剤の望ましい性状に応じて選べばよい。 The amount ratio of each component used in the present invention is 80 to 100 % by weight of calcined gypsum and 110 to 140 % by weight of waste edible oil to waste gypsum. What is necessary is just to select according to the desired property of the soil improvement agent made.
固結するのに必要な水量はおもに廃石こうの吸水能と廃食油の使用量に左右され、廃石こうと焼石こう および廃食油の混合物が湿潤状態になる量とすればよい。通常は廃石こうの55〜70重量％が用いられ、この範囲外であると固結が不十分であったり固結乾燥に要する時間が長びいたりして不利である。 The amount of water required for consolidation depends mainly on the water absorption capacity of waste gypsum and the amount of waste cooking oil used, and the amount of waste gypsum and calcined gypsum and the mixture of waste cooking oil may be set to a wet state. Usually, 55 to 70 % by weight of waste gypsum is used, and if it is outside this range, it is disadvantageous because the caking is insufficient or the time required for caking and drying is prolonged.
焼石こうの80重量％未満の使用は固結が不十分なため、また100重量％を超える量の使用は結果的に廃石こうの使用比率が減り、廃石こうの再利用という本発明の趣旨を損うので好ましくない。 The use of calcined gypsum less than 80 % by weight is insufficiently consolidated, and the use of more than 100 % by weight results in a reduction in the use ratio of waste gypsum, and the purpose of the present invention of reusing waste gypsum. It is not preferable because it damages.
廃食油の110重量％未満の使用は 本発明土壌改良剤中への廃食油成分の含有率が減り、本発明の目的のひとつである廃食油の再利用という趣旨を満たしがたいことから、また、140重量％を超える量の使用はえられる土壌改良剤にべとつきが残り取扱上不便であることから本発明より除かれる。 Use of less than 110 % by weight of waste cooking oil reduces the content of the waste cooking oil component in the soil improver of the present invention, and it is difficult to satisfy the purpose of recycling waste cooking oil, which is one of the objects of the present invention. The use of more than 140 % by weight is excluded from the present invention because the resulting soil conditioner remains sticky and is inconvenient in handling.
本発明土壌改良剤の調製には，各成分を選択した比率に従って秤りとり３〜１０分間かきまぜた後取り出し拡げて自然乾燥すれば約１〜２時間後にべとつきのない固結物としてえられる。この際，固結物として均一性をうるために廃石こうと焼石こうを予め廃食油で湿潤した後水を加えてかきまぜる方法を採用した方がより望ましい。In preparing the soil conditioner of the present invention, each component is weighed according to the selected ratio, stirred for 3 to 10 minutes, then taken out and naturally dried to obtain a solid product without stickiness after about 1 to 2 hours. At this time, in order to obtain uniformity as a consolidated product, it is more desirable to employ a method in which waste gypsum and calcined gypsum are previously wetted with waste cooking oil and then added with water.
本発明土壌改良剤の有機質成分を高めるために，野菜を主とする生ごみを廃食油と併用するとか，チッソ，リン，カリなどの肥効成分，各種ミネラル成分あるいは土壌有用微生物などを添加することは固結を妨げない１〜１０重量％の範囲で任意に行ってよい。In order to increase the organic components of the soil improver of the present invention, food waste mainly consisting of vegetables is used in combination with waste cooking oil, fertilizers such as chisso, phosphorus, potash, various mineral components, or useful soil microorganisms are added. This may be carried out arbitrarily in the range of 1 to 10% by weight which does not prevent consolidation.
本発明土壌改良剤を使用するには，用土の１〜５容量％を用土に均一に混合して用いることか，鉢やプランターにおいて株のまわりに６号鉢で約１０ｇ，２８×８０ｃｍのプランターで約７０ｇ，植木のまわりに１００〜３００ｇ，菜園の１ｍ２当り２００〜４００ｇを用いるなどすればよいが，好ましくは用土で表面を覆うがよい。
〔実施例１〕In order to use the soil conditioner of the present invention, 1 to 5% by volume of the soil should be uniformly mixed with the soil, or about 10 g, 28 × 80 cm planter in the No. 6 pot around the strain in the pot or planter. About 70 g, 100-300 g around the planted plant, 200-400 g per 1 m 2 of the vegetable garden may be used, but the surface is preferably covered with soil.
[Example 1]
廃石こうボードより回収した石こう粉末（鈴木工業株式会社）１００ｇと焼石こう（睦化学工業株式会社）１００ｇとを均一に混合する。廃食油１１０ｇを加えて湿潤させた後水道水５５ｇを加え３分間かきまぜて放置し２時間後にえられた生成物はおから状の外観を示した。100 g of gypsum powder (Suzuki Industry Co., Ltd.) recovered from the waste gypsum board and 100 g of gypsum (Sakai Chemical Industry Co., Ltd.) are mixed uniformly. After adding 110 g of waste cooking oil and moistening, 55 g of tap water was added, and the mixture was stirred for 3 minutes and allowed to stand for 2 hours.
こうしてえられた本発明土壌改良剤を２ヶ月放置した後その効果を確認するため以下のテストを行った。
市販園芸用赤玉土と腐葉土とを容量比で７：３に混合し，これに肥料としてヨウリンを２ｇ／ｌの割合で混合した用土に本土壌改良剤を容量比で３％加えて混合し６号素焼鉢に１．４ｌ充てんする。一方，土壌改良剤を加えない上記用土を対照区とする。After the soil improver of the present invention thus obtained was allowed to stand for 2 months, the following test was conducted to confirm the effect.
Commercial soil horticultural red bean and mulch are mixed at a volume ratio of 7: 3, and the soil amendment agent is added at a ratio of 2 g / l as a fertilizer, and the soil conditioner is added at a volume ratio of 3%. Fill 1.4g in Nojime pot. On the other hand, the above-mentioned soil to which no soil conditioner is added is taken as a control plot.
上記鉢のそれぞれ２鉢にハツカダイコン（株式会社トーホク，ホワイトアイスクル）の種子を１鉢あたり６粒播種し，発芽後エド液野菜用液肥（住化タケダ園芸株式会社）５００倍液を一週間に１回与える。６週間後に抜きとり生育量を調べた結果本発明土壌改良剤施用鉢が対照区にくらべ約１０％まさっていた。なお，生育量は３株平均の生量（ｇ／株）で比較した。
〔実施例２〕6 seeds of radish (Tohoku Co., Ltd., White Ice Kull) are sown per 2 pots in each of the above-mentioned pots, and after sprouting, the liquid fertilizer for Ed liquid vegetables (Suika Takeda Horticultural Co., Ltd.) 500 times in a week. Give once. As a result of sampling after 6 weeks and examining the amount of growth, the pot for applying the soil conditioner of the present invention was about 10% better than the control group. In addition, the growth amount was compared with the average production amount (g / strain) of the three strains.
[Example 2]
廃石こう（吉野石こう株式会社）100ｇ、焼石こう（丸石石こう株式会社）85ｇ天然ゼオライト（日東粉化工業株式会社、粒度2〜3ｍｍφ）8ｇ、パルプ粒状物（ペットライン株式会社 粒度 2〜3ｍｍφ）7ｇの混合物に廃食油140ｇを加えてかきまぜた後 市販木酢液（大幸TEC株式会社）70ｇを加えてかきまぜて放置したものは 約2時間後にべとつきのない粒状 乃至粒状物としてえられた。実施例1において、焼石こうの15％を細孔をもった吸液性か粒に置換した 本例では廃食油の含有量を約28％増やすことができた。 Waste gypsum (Yoshino Gypsum Co., Ltd.) 100g, calcined gypsum (cobblestone Gypsum Co., Ltd.) 85g natural zeolite (Nitto Funka Kogyo Co., Ltd., particle size 2~3mmφ) 8g, pulp particulate matter (Pets line Co., particle size 2~3mmφ) After adding 140 g of waste cooking oil to 7 g of the mixture and stirring, 70 g of commercial wood vinegar solution (Daikou TEC Co., Ltd.) and stirring were obtained after about 2 hours as a non-sticky granular or granular product. In Example 1, 15% of calcined gypsum was replaced with liquid absorbent granules having pores. In this example, the content of waste cooking oil could be increased by about 28%.
上記土壌改良剤の害虫忌避効果を調べるために下記のテストを行った。
ペチュニアを植えた６号鉢２鉢を用意し一鉢の内側縁に本土壌改良剤１０ｇを散布した。対照として他の一鉢にメタアルデヒド成分の市販なめくじ殺虫剤（住化タケダ園芸株式会社，商品名ナメトックス）１０ｇを同様に散布した。これらの鉢を屋外に置き２〜３日おきに潅水してなめくじの寄生を比較したところ，本土壌改良剤を散布した鉢は約２０日間にわたってなめくじの侵入がなかったのに対し対照鉢は薬剤にべとつきを生じ一部は潅水によって流失して６日後になめくじの殺虫効果がなくなった。In order to investigate the pest repellent effect of the soil improver, the following test was conducted.
Two pots of No. 6 pot planted with petunia were prepared, and 10 g of this soil conditioner was sprayed on the inner edge of one pot. As a control, 10 g of a commercially available licking insecticide (Sumika Takeda Horticultural Co., Ltd., trade name: Nametox) with a metaaldehyde component was sprayed in the same manner in another pot. When these pots were placed outdoors and irrigated every 2 to 3 days to compare the infestation of the licks, the pots sprayed with this soil amendment did not invade the licks for about 20 days, whereas the control pots were chemicals. A part of it was washed away by irrigation, and after 6 days the effect of the licking was lost.
比較例として，本例において廃石こうと吸液性か粒とを用いずに焼石こうと代置した配合すなわち焼石こうのみを２００ｇ用いて同様に調製したところ，えられた生成物は鉄鎚で割る程の硬度があり，しかも水分と油分が液状で残った。この結果から，焼石こうのみを使用して本発明と同様の土壌改良剤を調製することは困難であることが明らかになった。
〔実施例３〕As a comparative example, in this example, the mixture obtained by replacing the calcined gypsum without using waste gypsum and liquid absorbent granules, that is, using only 200 g of gypsum gypsum, was similarly prepared. Hard enough to crack and water and oil remained in liquid form. From this result, it became clear that it was difficult to prepare a soil conditioner similar to the present invention using only calcined gypsum.
Example 3
（比較例 1）
実施例 1において焼石こうの量を50ｇとして同様に調製したところ、生成物は固結状態が不揃で固結した部分には液が残りしかもべとつきを示した。この結果から、廃石こうに対して焼石こうの使用量が少ないと本発明土壌改良剤とするのに不適であることが明らかになった。 (Comparative Example 1)
In Example 1, the amount of calcined gypsum was adjusted to 50 g in the same manner. As a result, the product was unevenly consolidated and the liquid remained in the consolidated portion, indicating stickiness. From this result, it became clear that if the amount of calcined gypsum used is small relative to waste gypsum, it is unsuitable for use as the soil conditioner of the present invention.
（比較例 2）
廃石こう100ｇに対し、焼石こうの150ｇ、廃食油の180ｇおよび水の70ｇを用いて前記例同様に調製してえられた生成物は、部分的に硬度の高い固結物がまざり均一性を欠き、しかも全体にべとつきが残って取扱上不便であった。この結果から廃食油の使用量は廃石こうに対して140重量％を超えると本発明とするのにべとつきが残り、また焼石こうの使用量は100重量％を超えると本発明の均一性が欠けることが明らかになった。 (Comparative Example 2)
The product obtained in the same manner as in the above example using 150 g of calcined gypsum, 180 g of waste edible oil and 70 g of water for 100 g of waste gypsum has a uniform hardness due to the presence of partially solidified solids. It was inconvenient to handle due to lack of stickiness. From this result, if the amount of waste edible oil used exceeds 140% by weight relative to the waste gypsum , stickiness remains, and if the amount of burnt gypsum exceeds 100% by weight, the uniformity of the present invention is lacking. It became clear.
（比較例 3）
実施例 2の配合において、木酢液70ｇに代えて水道水20ｇを用いた混合物全体の湿潤が十分でなく固結も不十分であった。また、水を101ｇ用いた場合はしめり程度が大きく乾燥に3日を要した。この結果から、用いる水の量が少ないと固結が不十分で、逆に用いる水の量が多すぎると乾燥程度が劣る傾向があることが明らかになった。 (Comparative Example 3)
In the formulation of Example 2, the entire mixture using 20 g of tap water instead of 70 g of wood vinegar was not sufficiently wet and caking was insufficient. Further, when 101 g of water was used, the degree of crimping was large and it took 3 days to dry. From this result, it became clear that when the amount of water used is small, consolidation is insufficient, and conversely when the amount of water used is too large, the degree of drying tends to be inferior.
（実施例 3）
廃石こう100ｇ、2〜3ｍｍφの市販軽石20ｇ、焼石こう80ｇ、細断した野菜くず20ｇの混合物に廃食油130ｇを加えてかきまぜた後、市販液肥の500倍うすめ液70ｇを加えてかきまぜ2時間放置する。これを平らなプラスチック容器にひろげて約3ヶ月放置し発酵腐熟させた。こうしてえられた本発明土壌改良剤は堆肥代わりに菜園に用いて有用であった。
(Example 3)
Waste gypsum 100 g, 2-3 gφ commercial pumice 20 g, calcined gypsum 80 g, shredded vegetable scrap 20 g of a mixture of waste cooking oil 130 g, stir, add commercially available liquid fertilizer 500 g thin solution 70 g and stir for 2 hours. To do. This was spread in a flat plastic container and left for about 3 months to ferment and ripen. The thus obtained soil conditioner of the present invention was useful for use in vegetable gardens instead of compost.
（実施例 4）
実施例 1において、水道水を先に加えてその後 廃食油を加えて同様に調製したところ、本発明土壌改良剤とするには問題はなかったが、えられた生成物に部分的に焼石こうと水との反応性生物とみられる白色粒状物がまざり均一性に欠ける結果を招いた。このことから、実施例 1の混合手順を採用した方が望ましい。 (Example 4)
In Example 1, tap water was added first, and then waste edible oil was added to prepare in the same manner. As a result, there was no problem with the soil improver of the present invention. The white granular material that seems to be a reaction product of water and water was not uniform enough. For this reason, it is desirable to adopt the mixing procedure of Example 1.
上述したように，本発明土壌改良剤は材料面で安価でしかも容易に入手できること，施用後の安全性と環境への負荷がないこと，調製作業が簡便であることおよび土壌改良剤としての効果が認められることから，緑化事業や農園芸作業における利用の可能性は高いものがある。
さらに，廃棄物の減量や再利用という社会的要請にかなうものとして廃棄物処理の立場からもその利用度は高いものがあると判断される。As described above, the soil conditioner of the present invention is inexpensive in terms of materials and can be easily obtained, has no safety and environmental burden after application, simple preparation work, and effects as a soil conditioner. Therefore, there is a high possibility of use in greening projects and agricultural and horticultural work.
In addition, it is judged that there is a high degree of utilization from the standpoint of waste disposal to meet social demands for waste reduction and reuse.
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| CN111185476A (en) * | 2020-02-03 | 2020-05-22 | 湖北大学 | Modifier, preparation method and method for adjusting magnesium form in cadmium-polluted acid soil |
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| CN111250530A (en) * | 2020-02-03 | 2020-06-09 | 湖北省农业科学院植保土肥研究所 | Modifier, preparation method thereof, application of modifier to acid soil improvement and method |
| CN111250532A (en) * | 2020-02-03 | 2020-06-09 | 湖北省农业科学院植保土肥研究所 | Modifier, preparation method and application of modifier in regulating calcium form in acid soil |
| CN111250529A (en) * | 2020-02-03 | 2020-06-09 | 湖北大学 | Passivating agent, preparation method thereof and method for adjusting cadmium form in acid soil |
| CN111250531A (en) * | 2020-02-03 | 2020-06-09 | 南阳师范学院 | Repairing agent, preparation method thereof and method for repairing crop root system |
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