专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPS6087892A DEPHOSPHORIZING METHOD 失效
公开(公告)号：JPS6087892A
公开(公告)日：1985-05-17
申请号：JP19688683
申请日：1983-10-20
申请人： KURITA WATER IND LTD
发明人： OOHASHI NORIO , JIYOUKOU ISAO , SAWADA SHIGEKI , GOTOU CHIYUUICHI
IPC分类号： C02F1/58
摘要： PURPOSE:To remove efficiently phosphate ions with high efficiency by allowing the water contg. phosphate ions to pass through a layer packed with granules contg. aluminum in the presence of aluminum compds. while regulating the pH to 3-8.5. CONSTITUTION:The aluminum compd. such as aluminum chloride, aluminum sulfate, and aluminum polychloride is added to the water contg. phosphate ions such as sewage, night soil, and industrial waste water, and the pH is regulated to 3-8.5, or preferably to 5-7. Then the water is passed through a layer packed with granules contg. aluminum such as activated alumina, alumina and silica, and aluminum phosphate, and the reaction product of phosphate ions with aluminum ions is collected. The aluminum compd. is incorporated into said phosphate-contg. water in 1:(0.5-1.5) equivalent ratio of phosphate ions to aluminum ions.

2. 发明专利

JPH0432715B2 失效
公开(公告)号：JPH0432715B2
公开(公告)日：1992-06-01
申请号：JP6867484
申请日：1984-04-06
申请人： KURITA WATER IND LTD
发明人： JOKO ISAO , OOHASHI NORIO , KANENIWA HATSUMI , SAWADA SHIGEKI
IPC分类号： C02F1/58

3. 发明专利

JPH0437756B2 失效
公开(公告)号：JPH0437756B2
公开(公告)日：1992-06-22
申请号：JP19323084
申请日：1984-09-14
申请人： KURITA WATER IND LTD
发明人： OOHASHI NORIO , JOKO ISAO , SAWADA SHIGEKI
IPC分类号： C02F1/28

4. 发明专利

JPS60212289A Dephosphorization method 失效
标题翻译：去磷化方法
公开(公告)号：JPS60212289A
公开(公告)日：1985-10-24
申请号：JP6867484
申请日：1984-04-06
申请人： Kurita Water Ind Ltd
发明人： JIYOUKOU ISAO , OOHASHI NORIO , KANENIWA HATSUMI , SAWADA SHIGEKI
IPC分类号： C02F1/58
摘要： PURPOSE: To perform the removal of phosphorus stably with good efficiency, by regenerating a phosphorus adsorbent lowered in its activity through the contact with an alkali solution and bringing this regenerated waste solution into contact with a crystal seed lowered in its activity to re-activate said crystal seed.
CONSTITUTION: Waster containing phosphate and a chromaticity component is brought into contact with a crystal seed containing calcium phosphate in the presence of a calcium ion at pH 6 or more and further brought into contact with a phosphorus adsorbent to remove phosphate in water. In this case, the phosphorus adsorbent lowered in its activity is regenerated through the contact with an alkali solution and the regenerated waste liquid obtained by the regeneration is brought into contact with the activity lowered crystal seed to reactivate said crystal seed. As the alkali agent of the alkali solution used in the activation of the phosphorus adsorbent, there is especially no limit but the one containing no calcium ion such as NaOH or KOH is pref.
COPYRIGHT: (C)1985,JPO&Japio
摘要翻译：目的：为了以高效率稳定地进行磷的除磷，可以通过与碱溶液接触而使活性降低的磷吸附剂再生，并使该再生废液与其活性降低的晶种接触，以重新激活所述晶种。构成：在pH6以上的钙离子的存在下，含有磷酸盐和色度成分的废弃物与含有磷酸钙的晶种接触，并进一步与磷吸附剂接触以除去水中的磷酸盐。在这种情况下，通过与碱溶液接触而使其活性降低的磷吸附剂再生，并且通过再生获得的再生废液与活性降低的晶种接触以重新活化所述晶种。作为磷吸附剂活化中使用的碱溶液的碱剂，特别没有限制，但不含有钙离子如NaOH或KOH的那些是优选的。

5. 发明专利

JPS6014989A DEPHOSPHORIZATION PROCESS 失效
公开(公告)号：JPS6014989A
公开(公告)日：1985-01-25
申请号：JP12216683
申请日：1983-07-05
申请人： KURITA WATER IND LTD
发明人： JIYOUKOU ISAO , SAWADA SHIGEKI , OOHASHI NORIO , GOTOU CHIYUUICHI
IPC分类号： C02F1/28 , C02F1/42 , C02F1/58
摘要： PURPOSE:To remove phosphate with high efficiency from water to be treated by removing previously aluminum compds. from the water, then allowing the water to contact with seed crystals contg. calcium phosphate in the presence of Ca ions and at >=6pH. CONSTITUTION:The pH of water to be treated contg. phosphate and Al compds. is elevated by adding an alkali agent to ionize the Al compds., and the water is then allowed to contact with strongly acidic cation exchange resin to remove Al ion selectively by exchanging Al ion selectively. Then, the pH of the water to be treated is adjusted to >=6, and the water is passed through a packed bed comprising seed crystals, etc. contg. calcium phosphate, in the presence of Ca ions, to perform crystallization dephosphorization treatment. The above described packed bed comprises packed seed crystals contg. calcium phosphate, such as hydroxyapatite, fluoroapatite, etc. The packed bed may be formed by using the seed crystals themselves as binder.

6. 发明专利

JPH0315514B2 失效
公开(公告)号：JPH0315514B2
公开(公告)日：1991-03-01
申请号：JP12216683
申请日：1983-07-05
申请人： KURITA WATER IND LTD
发明人： JOKO ISAO , SAWADA SHIGEKI , OOHASHI NORIO , GOTO CHUICHI
IPC分类号： C02F1/28 , C02F1/42 , C02F1/58

7. 发明专利

JPS60227879A DEPHOSPHORIZING METHOD 失效
公开(公告)号：JPS60227879A
公开(公告)日：1985-11-13
申请号：JP8466684
申请日：1984-04-26
申请人： KURITA WATER IND LTD
发明人： OOHASHI NORIO , JIYOUKOU ISAO , SAWADA SHIGEKI , GOTOU CHIYUUICHI
IPC分类号： C02F1/28
摘要： PURPOSE:To remove efficiently phosphate ions with a high removal rate over a long period of time by reactivating an aluminum-contg. granular material by an alkali agent and adding the waste liquid of the reactivation as an aluminum compd. to raw water. CONSTITUTION:Phosphate ion-contg. water is passed through a packed bed of the aluminum-contg. granular material under the condition of 3-8.5pH in the presence of the aluminum compd. The packed bed is intermittently developed and washed by upward current in the mid-way of such passing and when the activity thereof decreases, the aluminum-contg. granular material is reactivated by bringing said material into contact with the alakali agent. The waste liquid of such reactivation is added as the aluminum compd. to the raw water. The reactivation is repeated in the above-mentioned way and the raw water is dephosphorized stably and efficiently at a high rate for a long period of time.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式