JP2001017991A - Method for thickening and decomposing environmental hormone in soil or water - Google Patents

Method for thickening and decomposing environmental hormone in soil or water

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Publication number
JP2001017991A
JP2001017991A JP11194598A JP19459899A JP2001017991A JP 2001017991 A JP2001017991 A JP 2001017991A JP 11194598 A JP11194598 A JP 11194598A JP 19459899 A JP19459899 A JP 19459899A JP 2001017991 A JP2001017991 A JP 2001017991A
Authority
JP
Japan
Prior art keywords
decomposition
decomposing
adsorbent
environmental
thickening
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
Application number
JP11194598A
Other languages
Japanese (ja)
Inventor
Mutsumi Kawamata
睦 川又
Toshihiro Hoaki
利洋 帆秋
Miho Oba
美保 大場
Sadao Kobayashi
貞雄 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taisei Corp
Original Assignee
Taisei Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taisei Corp filed Critical Taisei Corp
Priority to JP11194598A priority Critical patent/JP2001017991A/en
Publication of JP2001017991A publication Critical patent/JP2001017991A/en
Pending legal-status Critical Current

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  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

PROBLEM TO BE SOLVED: To make it possible to efficiently decompose environmental hormones of a very small concentration by thickening environmental hormonal materials by an adsorbent, administrating decomposition bacteria, nutrient salts, moisture, air, or the like, thereto, thereby decomposing the environmental hormones. SOLUTION: The environmental hormones are thickened by the adsorbent and are decomposed by the decomposition bacteria, and the like, by using this device. An ozone treating tank or activated sludge treating vessel is not always required here and the thickening and decomposing efficiency is improved if there are these treating vessels. Also, a bioactive carbon treating vessel 2 is not always essential but since the chemical materials flowing over from the bioactive carbon treating vessel 1 may be subjected to the decomposition treatment, the treating vessel 2 is preferably installed in combination if possible. The decomposition activity is not enhanced before the decomposition bacteria are stabilized by assimilating the chemical materials adsorbed on the active carbon. If, however, the adhesion of the decomposition bacteria to the active carbon stabilizes, representative bisphenol A may be decomposed about 70 to 100% for from two weeks to about one month.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】環境ホルモンを効率的に分解
する方法に関する。
The present invention relates to a method for efficiently decomposing environmental hormones.

【0002】[0002]

【従来の技術】工業技術の発達、社会活動の多様化によ
り排出される廃棄物の量は近年増大し、さらに複雑多様
化している。結果として廃棄物埋め立て地滲出水に含有
される、難分解性かつ高い毒性及び生物濃縮性を持つ微
量物質の存在が大きな問題となってきている。
2. Description of the Related Art The amount of waste discharged due to the development of industrial technology and diversification of social activities has been increasing in recent years, and has become more complicated and diversified. As a result, the presence of trace substances that are difficult to decompose and have high toxicity and bioconcentration contained in the leachate of waste landfills has become a major problem.

【0003】例えば、エポキシ樹脂が使用されている構
造物、あるいは廃棄物最終処分場から、地中、あるいは
河川に溶出したビスフェノールA等の環境ホルモン物質
による環境汚染がある。このような水や土壌中に拡散し
た環境ホルモン物質は、濃度が希薄であるため、その処
理が困難であった。
[0003] For example, there is environmental pollution by environmental hormonal substances such as bisphenol A eluted in the ground or in rivers from structures using epoxy resins or from final disposal sites for waste. Such an endocrine disrupting substance diffused in water or soil is difficult to treat because its concentration is low.

【0004】ビスフェノールA(2,2-ビス(4-ヒドロキ
シフェニル)プロパン:BPA)は、ポリカーボネイト
系、エポキシ系のプラスチック及び樹脂の製造や、食品
容器の塗装用ラッカーの添加剤として大量に生産、消費
されているが、環境中で分解されにくく、生物体内に蓄
積されやすい。また食物連鎖によって食品を環境中で経
由して体内に取り込まれ、内分泌攪乱障害等を引き起こ
し、特に魚類のメス化現象の原因の一つとされている。
[0004] Bisphenol A (2,2-bis (4-hydroxyphenyl) propane: BPA) is produced in large quantities as an additive for the production of polycarbonate-based and epoxy-based plastics and resins, and as a coating lacquer for food containers. Although consumed, it is difficult to decompose in the environment and easily accumulates in living organisms. In addition, food is taken into the body via the environment via the food chain, causing endocrine disruption and the like, and is considered to be one of the causes of female feminization of fish in particular.

【0005】そして、この化学物質は生物に対して中程
度の毒性を示し、人に対しては、接触皮膚炎を引き起こ
すことから、アメリカでは水系へのBPA放出濃度を0.
1mg/l以下に制限している。従来、環境中に拡散した低
濃度のビスフェノールA等の環境ホルモンを効率的に処
理する方法は存在しなかったことから、環境ホルモンの
効率的処理方法の開発が望まれているところである。
[0005] Since this chemical has moderate toxicity to living organisms and causes contact dermatitis to humans, the concentration of BPA released to water systems in the United States is set at 0,0.
Restricted to 1 mg / l or less. Conventionally, there has been no method for efficiently treating environmental hormones such as bisphenol A at a low concentration diffused in the environment. Therefore, development of an efficient method for treating environmental hormones has been desired.

【0006】[0006]

【発明が解決しようとする課題】濃度が希薄な環境ホル
モンを、効率的に分解できる方法の提供を課題とする。
SUMMARY OF THE INVENTION An object of the present invention is to provide a method capable of efficiently decomposing environmental hormones having a low concentration.

【0007】[0007]

【課題を解決するための手段】本発明者等は、上記課題
を解決するために鋭意研究した結果、環境ホルモン物質
を吸着剤により濃縮し、そこに分解菌と栄養塩、水分、
空気等を投与することによって、環境ホルモンを分解で
きることを見出した。
Means for Solving the Problems The present inventors have conducted intensive studies in order to solve the above-mentioned problems, and as a result, enriched environmental hormone substances with an adsorbent, and then decomposed bacteria and nutrients, water,
It has been found that the administration of air or the like can degrade environmental hormones.

【0008】すなわち、本発明は、(1)環境ホルモン
物質を吸着剤により濃縮した後、分解菌と栄養塩、水
分、空気等を投与することを特徴とする環境ホルモンの
分解方法、(2)環境ホルモンがビフェノール化合物あ
るいはダイオキシンであることを特徴とする(1)記載
の分解方法、(3)分解菌がシュードモナス、アルカリ
ゲネス、ロドコッカス、マイクロコッカス、アシネトバ
クターあるいはバチルスの何れか1以上であることを特
徴とする(1)記載の分解方法、(4)吸着剤を汚染水
を通すカラムに充填するか、または汚染された土壌中に
隔壁として埋設することを特徴とする(1)記載の分解
方法に関する。
That is, the present invention provides (1) a method for decomposing environmental hormones, which comprises administering a decomposing bacterium and nutrients, water, air, etc., after concentrating an environmental hormone substance with an adsorbent; (1) The decomposition method according to (1), wherein the environmental hormone is a biphenol compound or dioxin, (3) the decomposition bacteria are at least one of Pseudomonas, Alcaligenes, Rhodococcus, Micrococcus, Acinetobacter and Bacillus. (4) The method according to (1), wherein the adsorbent is packed in a column through which contaminated water passes, or is embedded as a partition in contaminated soil. .

【0009】本発明方法は、ビスフェノールA等の環境
ホルモン物質で汚染された土壌、水から、吸着剤を用い
て有害な環境ホルモン物質を濃縮した状態、あるいは回
収した後、栄養塩、水分、空気、分解微生物を供給して
効率的に浄化する手法である。まず、エポキシ樹脂等か
ら溶出したビスフェノールA等の環境ホルモン物質を吸
着剤を利用して、濃縮を行う。
[0009] The method of the present invention is a method of concentrating or recovering harmful environmental hormonal substances using an adsorbent from soil or water contaminated with environmental hormonal substances such as bisphenol A, and then recovering nutrients, water and air. This is a method for supplying decomposed microorganisms and purifying efficiently. First, environmental hormone substances such as bisphenol A eluted from an epoxy resin or the like are concentrated using an adsorbent.

【0010】吸着剤としては、アルミナ・イオン交換・
活性炭・シリカ・木片・炭・木炭・活性白土・ゼオライ
ト・アルカリ土類金属があるが、特に活性炭が好まし
い。次に、濃縮を行った環境ホルモン物質を分解菌、栄
養塩、水分、空気等を投与し、分解菌を増殖させて効率
よく分解する。
As the adsorbent, alumina, ion exchange,
There are activated carbon, silica, wood chips, charcoal, charcoal, activated clay, zeolite, and alkaline earth metals, with activated carbon being particularly preferred. Next, the concentrated environmental hormone substance is administered with a decomposing bacterium, a nutrient salt, water, air, or the like, and the decomposing bacterium is propagated and decomposed efficiently.

【0011】分解菌としては、シュードモナス、アルカ
リゲネス、ロドコッカス、マイクロコッカス、アシネト
バクターあるいはバチルス等があるが、特に好ましいの
は、シュードモナス属である。そして、これらはそれぞ
れ(財)発酵研究所に寄託番号3080、3445〜3449、3451
〜3454、13738〜13750として寄託されており、容易に入
手可能である。栄養塩としては、NH4Cl、K2HPO
4、KH2PO4等がある。
Examples of the decomposing bacteria include Pseudomonas, Alcaligenes, Rhodococcus, Micrococcus, Acinetobacter and Bacillus. Particularly preferred is Pseudomonas. These are deposited at the Fermentation Research Institute, respectively, as deposit numbers 3080, 3445-3449, 3451
33454, 13738-13750 and are readily available. Nutrients include NH 4 Cl, K 2 HPO
4 , KH 2 PO 4 and the like.

【0012】本発明では、まず、吸着剤による吸着を行
うが、この吸着方法としては、汚染水を吸着剤充填カラ
ムを通す方法、あるいは汚染された地中に吸着剤からな
る隔壁を埋設することによって行うことができる。環境
ホルモンとして代表的なビスフェノールAは、次の様な
構造式を有している。
In the present invention, first, adsorption is carried out with an adsorbent. As the adsorption method, a method of passing contaminated water through an adsorbent packed column or embedding a partition wall made of adsorbent in contaminated ground is used. Can be done by Bisphenol A, a typical environmental hormone, has the following structural formula.

【0013】[0013]

【化1】 Embedded image

【0014】この他、本発明の対象となる環境ホルモン
としては、上記のビスフェノールA以外にビスフェノー
ルAF、ビスフェノールF、ビスフェノールS等のビフ
ェノール類はもちろんのこと、ダイオキシン類、ポリ塩
化ビヒェニル(PCB)、トリブチルスズ(TBT)、
ノニルフェノール、フタル酸エステル、スチレンダイマ
ー、スチレントリマー、クロルデン、DDT、カルバリ
ル、シマジン、ベノミル、アトラジン、ディルドリン等
がある。本発明を以下の実施例によってさらに詳細に説
明するが、本発明はこれによって限定されるものではな
い。
In addition to the above-mentioned bisphenol A, not only the above-mentioned bisphenol A but also biphenols such as bisphenol AF, bisphenol F, bisphenol S, dioxins, polychlorinated biphenyl (PCB), and the like. Tributyltin (TBT),
Nonylphenol, phthalic acid ester, styrene dimer, styrene trimer, chlordane, DDT, carbaryl, simazine, benomyl, atrazine, dieldrin and the like. The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto.

【0015】[0015]

【発明の実施の形態】〔実施例1〕図1に示すような装
置を用いて、環境ホルモンを濃縮、分解する。図1にお
いて、「オゾン処理槽または活性汚泥処理槽」が図示さ
れているが、必ずしも必要ではない。しかし、これらの
槽があれば濃縮・分解効率が良くなる。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Using an apparatus as shown in FIG. 1, environmental hormones are concentrated and decomposed. FIG. 1 shows an “ozone treatment tank or activated sludge treatment tank”, but this is not always necessary. However, these tanks improve the concentration / decomposition efficiency.

【0016】また、生物活性炭処理槽2についても、必
須のものではないが、槽1でオーバーフローした化学物
質を分解処理できるので、槽2はできれば併設すること
が好ましい。分解菌が活性炭に吸着された化学物質を資
化して安定するまで分解活性は高まらない。しかし、分
解菌の活性炭への付着が安定すれば、例えばビスフェノ
ールAは2週間から1ヶ月で70〜100%分解するこ
とができる。
The biological activated carbon treatment tank 2 is not essential, but the chemical substance overflowed in the tank 1 can be decomposed. The decomposing activity does not increase until the decomposing bacteria assimilate and stabilize the chemical substance adsorbed on the activated carbon. However, if the adhesion of the decomposing bacteria to the activated carbon is stable, for example, bisphenol A can be decomposed 70 to 100% in two weeks to one month.

【0017】[0017]

【発明の効果】ビスフェノールA等の環境ホルモン物質
は、吸着剤で濃縮された後、好条件下にある分解菌によ
り効率よく分解され、生物に対する毒性を解消すること
ができる。
EFFECTS OF THE INVENTION Environmental hormone substances such as bisphenol A are concentrated by an adsorbent and then efficiently decomposed by decomposing bacteria under favorable conditions to eliminate toxicity to living organisms.

【図面の簡単な説明】[Brief description of the drawings]

【図1】土壌または水中の環境ホルモンを濃縮・分解す
る方法を示す図。
FIG. 1 is a diagram showing a method for concentrating and decomposing environmental hormones in soil or water.

フロントページの続き (72)発明者 大場 美保 東京都新宿区西新宿一丁目25番1号 大成 建設株式会社内 (72)発明者 小林 貞雄 東京都新宿区西新宿一丁目25番1号 大成 建設株式会社内 Fターム(参考) 4D040 DD03 DD31 Continuing on the front page (72) Inventor Miho Oba 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Inventor Sadao Kobayashi 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Shares F term in the company (reference) 4D040 DD03 DD31

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 環境ホルモン物質を吸着剤により濃縮し
た後、分解菌と栄養塩、水分、空気等を投与することを
特徴とする環境ホルモンの分解方法。
1. A method for decomposing environmental hormones, comprising concentrating an environmental hormone substance with an adsorbent and then administering a decomposing bacterium and nutrients, water, air and the like.
【請求項2】 環境ホルモンがビフェノール化合物ある
いはダイオキシンであることを特徴とする請求項1記載
の分解方法。
2. The method according to claim 1, wherein the environmental hormone is a biphenol compound or dioxin.
【請求項3】 分解菌がシュードモナス、アルカリゲネ
ス、ロドコッカス、マイクロコッカス、アシネトバクタ
ーあるいはバチルスの何れか1以上であることを特徴と
する請求項1記載の分解方法。
3. The method according to claim 1, wherein the degrading bacterium is at least one of Pseudomonas, Alcaligenes, Rhodococcus, Micrococcus, Acinetobacter and Bacillus.
【請求項4】 吸着剤を汚染水を通すカラムに充填する
か、または汚染された土壌中に隔壁として埋設すること
を特徴とする請求項1記載の分解方法。
4. The decomposition method according to claim 1, wherein the adsorbent is packed in a column through which contaminated water passes, or is embedded as a partition in contaminated soil.
JP11194598A 1999-07-08 1999-07-08 Method for thickening and decomposing environmental hormone in soil or water Pending JP2001017991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11194598A JP2001017991A (en) 1999-07-08 1999-07-08 Method for thickening and decomposing environmental hormone in soil or water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11194598A JP2001017991A (en) 1999-07-08 1999-07-08 Method for thickening and decomposing environmental hormone in soil or water

Publications (1)

Publication Number Publication Date
JP2001017991A true JP2001017991A (en) 2001-01-23

Family

ID=16327221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11194598A Pending JP2001017991A (en) 1999-07-08 1999-07-08 Method for thickening and decomposing environmental hormone in soil or water

Country Status (1)

Country Link
JP (1) JP2001017991A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009247279A (en) * 2008-04-07 2009-10-29 Hokkaido Univ New waterweed rhizosphere microorganism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009247279A (en) * 2008-04-07 2009-10-29 Hokkaido Univ New waterweed rhizosphere microorganism

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