JPS6332397A - Method of processing waste liquor utilizing organism system substance - Google Patents
Method of processing waste liquor utilizing organism system substanceInfo
- Publication number
- JPS6332397A JPS6332397A JP17609686A JP17609686A JPS6332397A JP S6332397 A JPS6332397 A JP S6332397A JP 17609686 A JP17609686 A JP 17609686A JP 17609686 A JP17609686 A JP 17609686A JP S6332397 A JPS6332397 A JP S6332397A
- Authority
- JP
- Japan
- Prior art keywords
- waste liquid
- uranium
- treatment
- water
- treatment method
- 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
- 238000000034 method Methods 0.000 title claims description 21
- 239000002699 waste material Substances 0.000 title claims description 19
- 239000000126 substance Substances 0.000 title claims description 14
- 239000007788 liquid Substances 0.000 claims description 17
- 239000012528 membrane Substances 0.000 claims description 13
- 238000001223 reverse osmosis Methods 0.000 claims description 13
- 229910001385 heavy metal Inorganic materials 0.000 claims description 9
- 238000000108 ultra-filtration Methods 0.000 claims description 9
- 239000000941 radioactive substance Substances 0.000 claims description 7
- 229920001864 tannin Polymers 0.000 claims description 6
- 239000001648 tannin Substances 0.000 claims description 6
- 235000018553 tannin Nutrition 0.000 claims description 6
- 229910052770 Uranium Inorganic materials 0.000 description 17
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 17
- 239000000047 product Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 6
- 239000003463 adsorbent Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005342 ion exchange Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000012620 biological material Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003925 fat Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000003100 immobilizing effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229920001222 biopolymer Polymers 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Removal Of Specific Substances (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業分野）
本発明は生体系物質を利用することにより廃液中の放射
性物質および重金属の分離除去を効率的に行う廃液の処
理方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field) The present invention relates to a waste liquid treatment method for efficiently separating and removing radioactive substances and heavy metals in waste liquid by utilizing biological substances.
（従来技術とその問題点）
従来放射性廃液の処理方法にはイオン交換法、蒸発法、
凝集沈殿法、＠濾過法、生体系固定化吸着体法等があり
、廃液の種類・性状によって使い分けられているが、こ
れらの従来技術にはそれぞれ次のような問題点がある。(Prior art and its problems) Conventional methods for treating radioactive waste include ion exchange method, evaporation method,
There are coagulation-sedimentation methods, @filtration methods, biological system immobilization adsorbent methods, etc., which are used depending on the type and properties of the waste liquid, but each of these conventional techniques has the following problems.
１、 イオン交換法
通常使用されるイオン交換りｔ脂は合成高分子なので高
価である上に、除去対象成分に対する高選択性のものが
得にくい。1. Ion exchange method Ion exchange T-fats that are commonly used are synthetic polymers and are therefore expensive, and it is difficult to obtain highly selective fats for the components to be removed.
２、 Ｍ発注
多量の熱エネルギーを要し、除去対象成分が低濃度の場
合極めて高コストになる。2. M requires a large amount of thermal energy and becomes extremely expensive if the component to be removed has a low concentration.
３、凝集沈殿法
除去対象成分に比較して多量の凝集剤を必要とし、処理
の結果生ずる大食の２次廃棄物の処理が問題となる。3. Coagulation-sedimentation method A large amount of flocculant is required compared to the target component to be removed, and the treatment of the gluttonous secondary waste generated as a result of treatment becomes a problem.
４、模Ｐｉ法
適用可能性が除去対象成分の分子量・粒径等のマクロな
因子に左右される。4. The applicability of the model Pi method depends on macro factors such as the molecular weight and particle size of the component to be removed.
５、生体系固定化吸着体法
生体系物質にはタンニン等水溶性のものがあり、固定分
離のために固定化処理したものが吸着体として使用され
ているが、この方法によると固定化剤及び固定化処理を
必要とする。5. Adsorbent method for immobilizing biological systems Some biological substances are water-soluble, such as tannins, and those that have been immobilized for immobilization and separation are used as adsorbents. According to this method, the immobilizing agent and requires fixation treatment.
（発明の目的）
本発明の目的は上記の従来技術の問題点を解決し、生体
系物質たとえば、タンニンを利用して廃液中の放射性物
質及び重金属を効率良く分離・除去する方法を提供する
にある。(Objective of the Invention) The object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a method for efficiently separating and removing radioactive substances and heavy metals in waste liquid using biological substances such as tannin. be.
（発明の構成）
すなわち、本発明によれば、生体系物質に廃液中の放射
性物質および重金属を結合させ、次いで該結合生成物を
該廃液より分離することを特徴とする生体系物質を利用
した廃液の処理方法、が得られる。(Structure of the Invention) That is, according to the present invention, a biological material is used, which is characterized in that a radioactive substance and a heavy metal in a waste fluid are bound to a biological material, and then the bonded product is separated from the waste fluid. A method for treating waste liquid is obtained.
本発明方法は、以上のように、上記放射性物質および重
金属を結合した結合生成物が非水溶性かまたは水溶性か
の性状に応じて、限外ｒ過嘆または逆浸透膜のいずれか
−１の膜のみ［該廃液を通すか、あるいは両刀の膜を通
すかのいずれでも任意に選択できる方法によって、該結
合生成物を分離するものである。As described above, the method of the present invention can be carried out using either an ultraviolet membrane or a reverse osmosis membrane, depending on whether the radioactive substance and heavy metal bonded product is water-insoluble or water-soluble. The combined product is separated by any method that can be selected, either by passing the waste liquid through only one membrane or by passing it through two membranes.
この結合処ｆＵ廃液の膜処理を図示すると、次の通りで
ある。The membrane treatment of this combined treatment fU waste liquid is illustrated as follows.
図において、１は結合処理装置、２は限外濾過装置、３
は逆浸透装置、４はａ縮液、５は処理液である。In the figure, 1 is a binding processing device, 2 is an ultrafiltration device, and 3 is a binding processing device.
4 is a reverse osmosis device, 4 is a condensate liquid, and 5 is a processing liquid.
（１） 限外濾過及び逆浸透処理の場合、バルブ１ａ
と２ａを開とする（他のバルブは閉）。(1) For ultrafiltration and reverse osmosis treatment, valve 1a
and 2a are open (other valves are closed).
（２） 限外濾過処理のみの場合、 バルブ１ａと２ｂを開とする（他のバルブは閉）。(2) In the case of ultrafiltration treatment only, Valves 1a and 2b are opened (other valves are closed).
（３）逆浸透処理のみの場合、 パル７’ｌｂのみを開とする（他のバルブは閉）。(3) In the case of reverse osmosis treatment only, Open only Pal 7'lb (other valves are closed).
本発明方法の長所は次の通りである。The advantages of the method of the present invention are as follows.
（１） 生体系物質と放射性物質および重金属との結
合生成物は生体高分子相当の分子量・粒径となるので、
原液のま＼での嗅濾過が不可能な場合にも適用でき、或
いは原液の模濾過性が改善される。(1) The combined products of biological substances, radioactive substances, and heavy metals have molecular weights and particle sizes equivalent to biopolymers.
It can be applied even when olfactory filtration is not possible with the stock solution, or the filtration performance of the stock solution is improved.
（２）生体系物質をあえて固定化処理をする必要がない
ので、追加コストは生体系物質およびその添加混合装置
のみで、全体処理コストが低減される。(2) Since there is no need to intentionally immobilize the biological substance, the additional cost is only for the biological substance and its addition/mixing device, reducing the overall processing cost.
（３）上記従来技術の問題点が解消される。(3) The problems of the prior art described above are solved.
次に、本発明を実施例によって具体的に説明する。Next, the present invention will be specifically explained using examples.
比較例
４６．０５ ｐｐｍのＵを含む廃液１！を、酢酸セルロ
ーズ膜製の逆浸透装置によってＵ成分の分離処理を行っ
た。逆浸透の掃作条件およびウランの除去率を第１表に
示す。第１表が示すように、ウラン除去率は低く、Ｕ成
分の一部が膜を透過した。Comparative Example 46.05 ppm of U containing waste liquid 1! The U component was separated using a reverse osmosis device made of cellulose acetate membrane. Table 1 shows the reverse osmosis sweeping conditions and uranium removal rate. As shown in Table 1, the uranium removal rate was low and some of the U component passed through the membrane.
実施例１
比較例と同−ａ度４６．０５ ｐ ｐｍＵの廃液１！に
生体系物質として工業用市販タンニン粉末ＩＩＩを投入
溶解させ、２５〜２７℃で約１時間攪拌して、廃液中ウ
ランのタンニンへの結合操作を行った。Example 1 Waste liquid 1 with the same -a degree of 46.05 pp pmU as the comparative example! A commercially available industrial tannin powder III as a biological substance was added and dissolved in the solution, and the mixture was stirred at 25 to 27° C. for about 1 hour to perform an operation for binding uranium in the waste liquid to tannin.
攪拌後、溶液を比較例と同様に、逆浸透処理を行い水溶
性の結合生成物を分離した。また１、５０ｐｐｍのＵ溶
液についても、同様の実験を行い、これらの結果を第２
表に併せ示す。第２表が示すように、生体系結合物質を
用いることにより、ウラン除去率はほぼ１００％となり
、ウラン結合後の結合生成物が水溶性であっても、逆浸
透膜を通過させることなくウランを分離・除去すること
ができる。After stirring, the solution was subjected to reverse osmosis treatment in the same manner as in the comparative example to separate water-soluble bound products. Similar experiments were also conducted for 1.50 ppm U solution, and these results were used in the second study.
Also shown in the table. As shown in Table 2, by using biologically bound substances, the uranium removal rate is almost 100%, and even if the combined product after uranium binding is water-soluble, uranium can be removed without passing through a reverse osmosis membrane. can be separated and removed.
実施例２
軽水炉用核燃料加工工場排水（ウランｉｎ ｇｌｏ ０
ａｇ／−６）１ｉＶｃ工業用市販タンニン粉末の５ ｗ
ｔ％水溶液１ ｒｎｌを加え、常温で３０分間攪拌し
た後に限外ｒ過膜（Ａｍｉｃｏｎ社ｆｆＰ Ｍ −１０
）で濾過し、Ｐ液中のウランを螢光分光光度法で定量し
たところ、５．０μ９／４３ であった。すなわち、ウ
ラン除去率は９５％であった。Example 2 Nuclear fuel processing plant wastewater for light water reactors (uranium in glo 0
ag/-6) 5w of 1iVc industrial commercial tannin powder
After adding 1 rnl of t% aqueous solution and stirring at room temperature for 30 minutes, ultrafiltration membrane (Amicon ffP M-10
), and the uranium in the P solution was determined by fluorescence spectrophotometry to be 5.0μ9/43. That is, the uranium removal rate was 95%.
次に、上記のウランを分離したＰ液（ウラン濃度５．０
μｌｉ／１３）をさらに、逆浸透装置によって処理した
後、濃縮液および透過液中のウラノｍ度を定量したとこ
（ろそれぞれ９９．８１μｍ１／Ｊ。Next, the P solution from which the above uranium was separated (uranium concentration 5.0
μli/13) was further treated with a reverse osmosis device, and the uranom degree in the concentrate and permeate was determined (99.81 μm1/J, respectively).
０．０１μｆｉ／１３であった。すなわち、逆浸透装置
による除去率は９９．８０％であった。It was 0.01 μfi/13. That is, the removal rate by the reverse osmosis device was 99.80%.
以上のように、タンニノ粉末を水溶液の形態で使用した
場合限外濾過によって、９５．０％のウランが除去され
、さらに、逆浸透膜を通すことによって、最初の排水に
対して９９．９９％のウランが除去される結果を得た。As mentioned above, when Tannino powder is used in the form of an aqueous solution, 95.0% of uranium is removed by ultrafiltration, and further, by passing it through a reverse osmosis membrane, 99.99% of the uranium is removed from the initial waste water. The results showed that uranium was removed.
以上において、主として結合生成物が水溶性である場合
の本発明について述べたが、結合生成物が非水溶性の場
合には限外濾過のみによる分離で十分となり、高度のウ
ラン除去が達成されることは明白である。The present invention has been mainly described above when the combined product is water-soluble; however, if the combined product is water-insoluble, separation by ultrafiltration alone is sufficient, and a high degree of uranium removal can be achieved. That is clear.
（発明の効果）
本発明は上記の構成をとることによって、次の効果を奏
するものである。(Effects of the Invention) By adopting the above configuration, the present invention achieves the following effects.
（１）生体系物質と放射性物質および重金属との結合生
成物が水溶性の場合でもウランおよび重金属を高率で除
去することができる。(1) Uranium and heavy metals can be removed at a high rate even when the combined products of biological substances, radioactive substances, and heavy metals are water-soluble.
（２） 該結合生成物が非水溶性の場合はさらに限外
濾過のみによる分離で十分となり、高度のウランおよび
重金属の除去が可能となる。(2) If the combined product is water-insoluble, further separation by ultrafiltration alone may be sufficient, allowing a high degree of uranium and heavy metal removal.
添付図面は本発明の結合９理廃液の膜処理の一例を示す
ものである。
図において、
１−一一一結合処理装置
１轟１ｂ−ｍ−バルブ
２−一一一限外ｒ過装置
２ａ、 ２ｂ−−−パルプ
３−一一一逆浸透装置
４−一一一濃縮液
５−一一一処理液The attached drawings show an example of the membrane treatment of the combined waste solution of the present invention. In the figure: 1-111 Combined treatment device 1 Todoroki 1b-m-Valve 2-111 Ultrafiltration device 2a, 2b --- Pulp 3-111 Reverse osmosis device 4-111 Concentrate 5-111 processing liquid
Claims (4)
結合させ、次いで該結合生成物を該廃液より分離するこ
とを特徴とする生体系物質を利用する廃液の処理方法。(1) A method for treating a waste liquid using a biological substance, which comprises binding radioactive substances and heavy metals in the waste liquid to the biological substance, and then separating the bonded product from the waste liquid.
、前記生体系物質がタンニンであることを特徴とする処
理方法(2) The treatment method according to claim (1), characterized in that the biological substance is tannin.
方法であつて、前記生体系物質が固定化処理を受けるこ
となく使用されることを特徴とする処理方法。(3) A treatment method according to claim (1) or (2), characterized in that the biological substance is used without being subjected to immobilization treatment.
、前記結合生成物が非水溶性の性状または水溶性の性状
であるかによつて、限外濾過膜または／および逆浸透膜
を任意に選択して、該膜に該廃液を通過させることによ
つて該結合生成物を分離することを特徴とする処理方法
。(4) The treatment method according to claim (1), wherein the treatment method is performed using an ultrafiltration membrane or/and reverse osmosis depending on whether the combined product is water-insoluble or water-soluble. A treatment method characterized in that the combined product is separated by passing the waste liquid through an optionally selected membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17609686A JPS6332397A (en) | 1986-07-26 | 1986-07-26 | Method of processing waste liquor utilizing organism system substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17609686A JPS6332397A (en) | 1986-07-26 | 1986-07-26 | Method of processing waste liquor utilizing organism system substance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6332397A true JPS6332397A (en) | 1988-02-12 |
Family
ID=16007625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17609686A Pending JPS6332397A (en) | 1986-07-26 | 1986-07-26 | Method of processing waste liquor utilizing organism system substance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6332397A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5931459A (en) * | 1994-08-19 | 1999-08-03 | Sten Wallsten Industries Ab | Conveyor device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5626476A (en) * | 1979-08-13 | 1981-03-14 | Matsushita Electric Ind Co Ltd | Junction type field-effect transistor and the manufacturing process |
-
1986
- 1986-07-26 JP JP17609686A patent/JPS6332397A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5626476A (en) * | 1979-08-13 | 1981-03-14 | Matsushita Electric Ind Co Ltd | Junction type field-effect transistor and the manufacturing process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5931459A (en) * | 1994-08-19 | 1999-08-03 | Sten Wallsten Industries Ab | Conveyor device |
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