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JPH0533119B2 - - Google Patents
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JPH0533119B2 - - Google Patents

Info

Publication number
JPH0533119B2
JPH0533119B2 JP61201673A JP20167386A JPH0533119B2 JP H0533119 B2 JPH0533119 B2 JP H0533119B2 JP 61201673 A JP61201673 A JP 61201673A JP 20167386 A JP20167386 A JP 20167386A JP H0533119 B2 JPH0533119 B2 JP H0533119B2
Authority
JP
Japan
Prior art keywords
wastewater
thermosetting resin
solidifying
inclusions
plastic
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 - Lifetime
Application number
JP61201673A
Other languages
Japanese (ja)
Other versions
JPS6359385A (en
Inventor
Tadahiro Honda
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.)
Ebara Industrial Cleaning Co Ltd
Original Assignee
Ebara Industrial Cleaning Co Ltd
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 Ebara Industrial Cleaning Co Ltd filed Critical Ebara Industrial Cleaning Co Ltd
Priority to JP20167386A priority Critical patent/JPS6359385A/en
Publication of JPS6359385A publication Critical patent/JPS6359385A/en
Publication of JPH0533119B2 publication Critical patent/JPH0533119B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Processing Of Solid Wastes (AREA)
  • Removal Of Specific Substances (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

〔産業上の利用分野〕 本発明は、廃水をプラスチツクにより固化する
方法に関するものである。 〔従来の技術〕 有害物質を含む産業廃棄物の貯蔵に当たつては
逸散防止、漏洩防止の観点から、液体または粉体
の形態で保管するのは好ましくない。原子力罰電
所では、この点を考慮して放射性廃棄物の固化の
手段としてセメント固化、アスフアルト固化、プ
ラスチツク固化のいずれかの方法が実施されてい
る。 〔発明が解決しようとする問題点〕 これらのうち、廃液のプラスチツク固化法とし
ては、廃液に油中水型エマルジヨンを形成する熱
硬化性樹脂を添加・混合して乳化させたのち、こ
れを硬化させる方法があるが、この方法ではエマ
ルジヨンの安定性を維持するためには固化剤たる
熱硬化性樹脂の使用量を廃水の1/2以上とする必
要があり、この結果、廃液固化物つまり廃棄物量
の増大を招く問題点があつた。このため、従来プ
ラスチツク固化法が産業廃棄の処理用に適用され
たのは、放射性廃液のような特殊な廃液に対して
だけであつた。 本発明は、従来方法の上記問題点に鑑みてなさ
れたもので、廃水を固化するためのプラスチツク
固化処理法において、固化剤の使用量を低下する
(換言すれば、廃水/固化物の比率を高める)こ
とによつて、固化処理費用の削減及び廃棄物発生
量の低減が達成できる有効な方法を提供すること
を目的とするものである。 〔問題点を解決するための手段〕 本発明は、廃水を高吸収性ポリマーと混合して
包摂し、該包摂物を熱硬化性樹脂と混合するか、
又は該包摂物を熱硬化性樹脂で包囲したのち、熱
硬化性樹脂を常温又は加熱下で硬化させることを
特徴とする、廃水のプラスチツク固化処理方法で
ある。 本発明により得られる固化物は、廃水が高吸水
性ポリマーにより捕水され、かつ、この捕水物
(包摂物)が熱硬化性樹脂の被覆材中に包蔵され
ている形態を維持するものである。例示的に云え
ば、前記捕水物は寒天と類似し、前記固化物はこ
の寒天を餅で包んだのち、この餅を堅餅にしたよ
うな形態のものとなる。したがつて、固化された
水分は、固化物を圧縮変形させたり、切断して捕
水物を露出させても水分が流出したり、滲み出た
りすることはない。 本発明によれば、後記する実施例から明らかな
ように、簡便な方法で廃水の固化処理が行なえ、
廃水/固化材の比を、従来高々2:1程度であつ
たものを容易に3:1以上とすることが可能とな
り、したがつて熱硬化性樹脂の使用量を大幅に削
減できる。すなわち、200ドラム缶で処理する
ときの従来法との比較を示すと下表のとおりであ
る。
[Industrial Field of Application] The present invention relates to a method for solidifying wastewater with plastic. [Prior Art] When storing industrial waste containing hazardous substances, it is not preferable to store it in liquid or powder form from the viewpoint of preventing dissipation and leakage. Taking this point into consideration, nuclear power stations use cement, asphalt, or plastic solidification methods to solidify radioactive waste. [Problems to be solved by the invention] Among these, a method for solidifying waste liquid into plastic is to add and mix a thermosetting resin that forms a water-in-oil emulsion to the waste liquid, emulsify it, and then harden it. However, in this method, in order to maintain the stability of the emulsion, it is necessary to reduce the amount of thermosetting resin used as a solidifying agent to more than half of the wastewater. There was a problem that led to an increase in the amount of materials. For this reason, conventional plastic solidification methods have only been applied to special waste liquids such as radioactive waste liquids. The present invention has been made in view of the above-mentioned problems of conventional methods, and reduces the amount of solidifying agent used in a plastic solidifying treatment method for solidifying wastewater (in other words, the ratio of wastewater/solidified material is reduced). The purpose of the present invention is to provide an effective method that can reduce the cost of solidification treatment and reduce the amount of waste generated. [Means for solving the problem] The present invention includes mixing wastewater with a superabsorbent polymer to encapsulate it, mixing the encapsulation with a thermosetting resin, or
Alternatively, there is provided a method for solidifying wastewater into plastic, which comprises surrounding the inclusions with a thermosetting resin, and then curing the thermosetting resin at room temperature or under heating. The solidified product obtained by the present invention maintains a form in which wastewater is captured by a superabsorbent polymer and the captured water (inclusions) is encapsulated in a thermosetting resin coating material. be. For example, the water-captured product is similar to agar, and the solidified product is shaped like agar wrapped in mochi (rice cake) and then made into hard mochi (rice cake). Therefore, the solidified water will not flow out or seep out even if the solidified material is compressed or deformed or cut to expose the water-captured material. According to the present invention, as is clear from the examples described later, solidification treatment of wastewater can be carried out by a simple method,
The ratio of waste water/solidification material, which was conventionally about 2:1 at most, can now be easily increased to 3:1 or more, and therefore the amount of thermosetting resin used can be significantly reduced. In other words, the table below shows a comparison with the conventional method when processing 200 drums.

〔実施例〕〔Example〕

実施例 1 水150mlに顆粒状の高吸水性ポリマー2gを添
加して混合し包摂物を得た。なお、この高吸水性
ポリマーとしては、三井サイアナミツド(株)製の
「アクアストア」(商品名)を使用した。この包摂
物に不飽和ポリビニルエステルを主成分とする熱
硬化性樹脂50ml、硬化剤0.75g及び硬化促進剤
0.15gを添加して混合し、室温でこの熱硬化性樹
脂を硬化させた。なお、上記不飽和ポリビニルエ
ステルとしてはDOW CHEMICAL社製の「バイ
ンダー101J」(商品名)を使用した。 実施例 2 COD濃度33000ppmの模擬廃水150mlに実施例
1と同一の高吸水性ポリマー8gを添加・混合
し、得られた包摂物を実施例1と同一の条件で処
理して固化物とした。 実施例 3 銅イオン濃度560ppmのメツキ廃水160mlに実施
例1と同一の高吸水性ポリマー6gを添加・混合
し包摂物を得た。別途に実施例1と同一の熱硬化
性樹脂40ml、硬化剤1g及び硬化促進剤0.3gを
添加した混合液を調製した。次に、この混合液中
に前記包摂物を浸漬し、該浸漬状態を維持しなが
ら室温で前記熱硬化性樹脂を硬化させた。 〔発明の効果〕 本発明によれば、廃水固化用の固化剤が従来法
に比べて大幅に削減でき、したがつて処理コス
ト、及び廃棄物たる廃水固化物の発生量を著しく
低減できる効果があり、固化処理操作も簡便で、
各種の廃水に広く適用できるなどの利点を有する
ものである。
Example 1 2 g of granular superabsorbent polymer was added to 150 ml of water and mixed to obtain inclusions. As this super absorbent polymer, "Aquastore" (trade name) manufactured by Mitsui Cyanamid Co., Ltd. was used. This inclusion includes 50 ml of thermosetting resin whose main component is unsaturated polyvinyl ester, 0.75 g of curing agent, and curing accelerator.
0.15 g was added and mixed, and the thermosetting resin was cured at room temperature. As the unsaturated polyvinyl ester, "Binder 101J" (trade name) manufactured by DOW CHEMICAL was used. Example 2 8 g of the same superabsorbent polymer as in Example 1 was added and mixed with 150 ml of simulated wastewater with a COD concentration of 33,000 ppm, and the resulting inclusions were treated under the same conditions as in Example 1 to form a solidified product. Example 3 6 g of the same superabsorbent polymer as in Example 1 was added and mixed with 160 ml of plating wastewater having a copper ion concentration of 560 ppm to obtain an inclusion. Separately, a mixed solution was prepared by adding 40 ml of the same thermosetting resin as in Example 1, 1 g of a curing agent, and 0.3 g of a curing accelerator. Next, the inclusion was immersed in this mixed solution, and the thermosetting resin was cured at room temperature while maintaining the immersion state. [Effects of the Invention] According to the present invention, the amount of solidifying agent for solidifying wastewater can be significantly reduced compared to conventional methods, and therefore the treatment cost and the amount of solidified wastewater generated can be significantly reduced. Yes, the solidification process is easy,
It has the advantage of being widely applicable to various types of wastewater.

Claims (1)

【特許請求の範囲】[Claims] 1 廃水を高吸水性ポリマーと混合して包摂し、
該包摂物を熱硬化性樹脂と混合するか、又は該包
摂物を熱硬化性樹脂で包囲したのち、熱硬化性樹
脂を常温又は加熱下で硬化させることを特徴とす
る、廃水のプラスチツク固化処理方法。
1. Mix wastewater with a superabsorbent polymer to encapsulate it,
Plastic solidification treatment of wastewater, characterized by mixing the inclusions with a thermosetting resin or surrounding the inclusions with a thermosetting resin, and then curing the thermosetting resin at room temperature or under heating. Method.
JP20167386A 1986-08-29 1986-08-29 Plastic solidification treatment of waste water Granted JPS6359385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20167386A JPS6359385A (en) 1986-08-29 1986-08-29 Plastic solidification treatment of waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20167386A JPS6359385A (en) 1986-08-29 1986-08-29 Plastic solidification treatment of waste water

Publications (2)

Publication Number Publication Date
JPS6359385A JPS6359385A (en) 1988-03-15
JPH0533119B2 true JPH0533119B2 (en) 1993-05-18

Family

ID=16445002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20167386A Granted JPS6359385A (en) 1986-08-29 1986-08-29 Plastic solidification treatment of waste water

Country Status (1)

Country Link
JP (1) JPS6359385A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5498635B1 (en) * 2013-01-29 2014-05-21 行平 加藤 Waste water treatment equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5265521A (en) * 1975-11-27 1977-05-31 Kato Eijirou Method of manufacturing building materials by treating and reusing concentrated waste liquid and waste oil containing heavy metals or similars

Also Published As

Publication number Publication date
JPS6359385A (en) 1988-03-15

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