JP4071173B2 - ろ過膜モジュールの酸洗浄廃液の処理方法および処理設備 - Google Patents
ろ過膜モジュールの酸洗浄廃液の処理方法および処理設備 Download PDFInfo
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- JP4071173B2 JP4071173B2 JP2003274912A JP2003274912A JP4071173B2 JP 4071173 B2 JP4071173 B2 JP 4071173B2 JP 2003274912 A JP2003274912 A JP 2003274912A JP 2003274912 A JP2003274912 A JP 2003274912A JP 4071173 B2 JP4071173 B2 JP 4071173B2
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Description
無機酸および有機酸混合洗浄廃液は、無機酸回収装置1の廃液室1Aに供給され、水貯槽6からは水が酸回収室1Bに供給される。無機酸および有機酸混合洗浄廃液中の鉄、マンガン、アルミニウムなどの金属と共に含まれている硝酸、硫酸、塩酸などの無機酸3は、陰イオン交換膜2を通過して酸回収室1Bに流入する。このようにして、無機酸濃度が高まった廃液は、回収無機酸貯槽5に貯留され、次回のろ過膜モジュールの薬品洗浄に再利用される。
1A:廃液室
1b:酸回収室
2:陰イオン交換膜
3:無機酸
4:無機酸洗浄廃液貯槽
5:回収無機酸貯槽
6:水貯槽
7:最終廃液貯槽
8:廃液中和処理槽
9:有機酸回収装置
10:有機酸洗浄廃液貯槽
11:回収有機酸貯槽
12:最終廃液貯槽
13:廃液中和処理槽
14:無機酸および有機酸混合廃液貯槽
15:中間廃液貯槽
21:無機酸廃液貯槽
22:中和槽
23:沈殿槽
24:有機酸廃液貯槽
25:中和槽
26:生物処理槽
Claims (3)
- ろ過膜モジュールの薬品洗浄工程から排出される、酸洗浄廃液を、陰イオン交換膜によって一方の室と他方の室とに隔てられた前記一方の室に供給し、同時に前記他方の室に水を供給し、かくして、前記陰イオン交換膜の作用により、前記無機酸洗浄廃液中に鉄、マンガン、アルミニウムなどの金属と共に含まれている硝酸、硫酸、塩酸などの無機酸を回収し、さらに、前記無機酸を回収した前記酸洗浄廃液を、ナノろ過膜装置または低圧逆浸透膜装置からなる有機酸回収装置に供給し、かくして、前記有機酸洗浄廃液中に鉄、マンガン、アルミニウムなどの金属と共に含まれるシュウ酸、クエン酸などの有機酸を回収することを特徴とする、ろ過膜モジュールの酸洗浄廃液の処理方法。
- 回収した前記無機酸および前記有機酸を前記ろ過膜モジュールの薬品洗浄に再利用することを特徴とする、請求項1記載の、ろ過膜モジュールの酸洗浄廃液の処理方法。
- 陰イオン交換膜を有する無機酸回収装置と、前記無機酸回収装置に無機酸および有機酸混合洗浄廃液を供給する酸洗浄廃液貯槽と、前記無機酸回収装置により回収された無機酸を貯留する回収無機酸貯槽と、前記無機酸回収装置に水を供給する水貯槽と、前記無機酸回収装置からの無機酸回収済廃液を貯留する中間廃液貯槽と、前記中間廃液貯槽からの廃液から有機酸を回収するナノろ過膜装置または低圧逆浸透膜装置からなる有機酸回収装置と、前記有機酸回収装置により回収された有機酸を貯留する回収有機酸貯槽と、前記有機酸回収装置からの無機酸および有機酸回収済廃液を中和処理する廃液中和処理槽とを備えていることを特徴とする、ろ過膜モジュールの酸洗浄廃液の処理設備。
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JP2003274912A JP4071173B2 (ja) | 2003-07-15 | 2003-07-15 | ろ過膜モジュールの酸洗浄廃液の処理方法および処理設備 |
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JP2003274912A JP4071173B2 (ja) | 2003-07-15 | 2003-07-15 | ろ過膜モジュールの酸洗浄廃液の処理方法および処理設備 |
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JP2005034749A JP2005034749A (ja) | 2005-02-10 |
JP4071173B2 true JP4071173B2 (ja) | 2008-04-02 |
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JP2003274912A Expired - Lifetime JP4071173B2 (ja) | 2003-07-15 | 2003-07-15 | ろ過膜モジュールの酸洗浄廃液の処理方法および処理設備 |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101597095A (zh) * | 2008-06-05 | 2009-12-09 | 佳科太阳能硅(厦门)有限公司 | 湿法冶硅的废酸回收处理方法 |
CN105435647B (zh) * | 2014-08-22 | 2017-08-22 | 中国石油化工股份有限公司 | 一种抗污染反渗透膜的制备方法及由此得到的反渗透膜 |
KR102310411B1 (ko) * | 2014-08-25 | 2021-10-12 | 한국전력공사 | 세정 폐액 처리 장치 및 방법 |
JP6458302B2 (ja) * | 2015-04-21 | 2019-01-30 | 三菱重工エンジニアリング株式会社 | 逆浸透膜洗浄方法及び逆浸透膜洗浄装置 |
KR101795908B1 (ko) | 2016-02-05 | 2017-11-08 | 두산중공업 주식회사 | 멤브레인 공정의 약품 재활용 세정 시스템 및 이를 이용한 세정 방법 |
CN113929226A (zh) * | 2021-10-29 | 2022-01-14 | 西安泰金工业电化学技术有限公司 | 一种草酸废液回收系统及回收方法 |
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