JP2001129554A5 - - Google Patents
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- JP2001129554A5 JP2001129554A5 JP1999312065A JP31206599A JP2001129554A5 JP 2001129554 A5 JP2001129554 A5 JP 2001129554A5 JP 1999312065 A JP1999312065 A JP 1999312065A JP 31206599 A JP31206599 A JP 31206599A JP 2001129554 A5 JP2001129554 A5 JP 2001129554A5
- Authority
- JP
- Japan
- Prior art keywords
- water
- treated
- chamber
- edi
- concentration
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229960003563 Calcium Carbonate Drugs 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Description
【００３７】
【実施例】
次に、実施例を挙げて、本発明を更に具体的に説明する。
実施例１
下記仕様の脱イオン水製造装置を使用し、図２に示す配置構成とした装置を用いて、処理実験を行った。被処理水は、水道水を活性炭吸着塔に通水した後の水に炭酸カルシウム溶液を混合して、Ｃａ濃度を１００mgCaCO3/L に調整したｐＨ６．２の水を用いた。また、酸性液は硫酸を用い、被処理水に注入して、ＥＤＩ装置の脱塩室流入水のｐＨ値を４．５となるように調整して運転した。評価は２０日間経過後の処理水の電気伝導率を測定し、ＥＤＩの濃縮室及び電極室内のスケール付着を目視観察することにより行った。結果を表１に示す。
[0037]
【Example】
Next, the present invention will be described more specifically with reference to examples.
Example 1
Using deionized water producing apparatus of the following specifications, using the apparatus and arrangement as shown in FIG. 2, it was treated experiment. As the water to be treated, water having a Ca concentration adjusted to 100 mgCaCO 3 / L by mixing a calcium carbonate solution with water obtained by passing tap water through an activated carbon adsorption tower was used. The acid solution was sulfuric acid, injected into the water to be treated, and operated by adjusting the pH value of the inflow water of the desalting chamber of the EDI apparatus to 4.5. The evaluation was performed by measuring the electric conductivity of the treated water after 20 days, and visually observing the scale adhesion in the EDI concentration chamber and the electrode chamber. Table 1 shows the results.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31206599A JP4152544B2 (en) | 1999-11-02 | 1999-11-02 | Deionized water production method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31206599A JP4152544B2 (en) | 1999-11-02 | 1999-11-02 | Deionized water production method and apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2001129554A JP2001129554A (en) | 2001-05-15 |
| JP2001129554A5 true JP2001129554A5 (en) | 2006-09-07 |
| JP4152544B2 JP4152544B2 (en) | 2008-09-17 |
Family
ID=18024818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31206599A Expired - Fee Related JP4152544B2 (en) | 1999-11-02 | 1999-11-02 | Deionized water production method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4152544B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4104054B2 (en) | 2001-08-27 | 2008-06-18 | 富士フイルム株式会社 | Image alignment apparatus and image processing apparatus |
| JP4779391B2 (en) * | 2005-03-18 | 2011-09-28 | 栗田工業株式会社 | Pure water production equipment |
| JP2008036605A (en) * | 2006-08-10 | 2008-02-21 | Kurita Water Ind Ltd | Apparatus for producing purified water and method for producing purified water |
| US8980101B2 (en) | 2008-09-04 | 2015-03-17 | Nalco Company | Method for inhibiting scale formation and deposition in membrane systems via the use of an AA-AMPS copolymer |
| JP6028539B2 (en) * | 2012-11-26 | 2016-11-16 | 三浦工業株式会社 | Pure water production equipment |
| JP7465699B2 (en) | 2020-03-27 | 2024-04-11 | オルガノ株式会社 | Water treatment composition and water treatment method |
| CN113929254A (en) * | 2020-06-29 | 2022-01-14 | 佛山市顺德区美的饮水机制造有限公司 | Water treatment facilities and water purification unit |
| CN113929253A (en) * | 2020-06-29 | 2022-01-14 | 佛山市顺德区美的饮水机制造有限公司 | Water purification structure and water purification unit |
| CN113929252A (en) * | 2020-06-29 | 2022-01-14 | 佛山市顺德区美的饮水机制造有限公司 | Water purification device and water purification equipment |
| JP2023115943A (en) * | 2022-02-09 | 2023-08-22 | 三菱重工業株式会社 | Electrodialysis apparatus |
-
1999
- 1999-11-02 JP JP31206599A patent/JP4152544B2/en not_active Expired - Fee Related
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