CN109179817A - 一种edi水处理工艺 - Google Patents
一种edi水处理工艺 Download PDFInfo
- Publication number
- CN109179817A CN109179817A CN201810996975.2A CN201810996975A CN109179817A CN 109179817 A CN109179817 A CN 109179817A CN 201810996975 A CN201810996975 A CN 201810996975A CN 109179817 A CN109179817 A CN 109179817A
- Authority
- CN
- China
- Prior art keywords
- water
- edi
- reverse osmosis
- treatment technology
- osmosis membrane
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 8
- 239000011575 calcium Substances 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 8
- 239000011777 magnesium Substances 0.000 claims abstract description 8
- 239000012528 membrane Substances 0.000 claims abstract description 7
- 230000001954 sterilising effect Effects 0.000 claims abstract description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000005374 membrane filtration Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 5
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 5
- 230000002035 prolonged effect Effects 0.000 claims abstract description 5
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 5
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 5
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 5
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 5
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 9
- 239000012498 ultrapure water Substances 0.000 claims description 9
- 238000011033 desalting Methods 0.000 claims description 4
- 238000009296 electrodeionization Methods 0.000 claims description 4
- 239000008399 tap water Substances 0.000 claims description 4
- 235000020679 tap water Nutrition 0.000 claims description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Natural products CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims 2
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 238000000151 deposition Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 description 3
- 229920002301 cellulose acetate Polymers 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/04—Non-contaminated water, e.g. for industrial water supply for obtaining ultra-pure water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
Abstract
本发明公开了一种EDI水处理工艺，具体步骤如下：（1）预处理；（2）降低水的PH值；（3）反渗透膜过滤；（4）EDI处理；（5）紫外线杀菌；（6）精密过滤器；本发明的优点是①降低硬度，防止钙镁垢在反渗透膜上沉积；②除铁，防止EDl中的铁污染，延长使用寿命；③提高水的回收率，即允许水在更高的浓缩倍数下运行；④可增强弱酸物质的除去效果，因无钙镁垢之忧，故可以提高RO和EDI进水pH值，将CO2及SiO2转化为离子状态而加以除去。
Description
技术领域
本发明涉及水处理技术领域，尤其涉及一种EDI水处理工艺。
背景技术
超纯水广泛应用于电力、电子、化工、制药等行业，如果超纯水的水质达不到要求，就会影响产品的质量或者科学实验的结果。目前在超纯水的处理中，水经过反渗透膜过滤和EDI处理后，再经紫外线杀菌并进行微滤处理，以除去水中存留的细菌，紫外线杀菌装置和微滤膜过滤器的高频使用，大大增加了日常的维护维修成本，从而大大增加了超纯水的使用成本，然而在实际的生产和医疗用水中，超纯水的质量往往不达标。
发明内容
为了克服上述缺陷，本发明提出了一种EDI水处理工艺，具体步骤如下：
（1）预处理：将自来水通过软化器降低水的硬度，同时去除铁污染，延长使用寿命，增强弱酸物质的除去效果因无钙镁垢之忧；
（2）降低水的PH值：将预处理的水通过加酸或其他降低进水pH值；
（3）反渗透膜过滤：将步骤（2）水用反渗透膜进行反渗透处理；
（4）EDI处理：通过电去离子处理深度除盐后得到纯水；
（5）紫外线杀菌：将EDI处理后得到的纯水经紫外线照射处理；
（6）精密过滤器：经紫外线照射处理后的水用精密过滤器进行过滤，得到超纯水。
优选地，步骤（1）中将CO2及SiO2转化为离子状态而加以除去。优选地，步骤（3）中反渗透膜为醋酸 纤维素卷式膜。
优选地，步骤（4）中纯水硬度最大为1.0ppm。
优选地，步骤（6）中精密过滤器过滤精度为0.1。
本发明的优点：①降低硬度，防止钙镁垢在反渗透膜上沉积；②除铁，防止EDI中的铁污染，延长使用寿命；③提高水的回收率，即允许水在更高的浓缩倍数下运行；④可增强弱酸物质的除去效果，因无钙镁垢之忧，故可以提高RO和EDI进水pH值，将CO2及SiO2转化为离子状态而加以除去。
具体实施方式
一种EDI水处理工艺，具体步骤如下：
（1）预处理：将自来水通过软化器降低水的硬度，同时去除铁污染，延长使用寿命，增强弱酸物质的除去效果因无钙镁垢之忧；
（2）降低水的PH值：将预处理的水通过加酸或其他降低进水pH值；
（3）反渗透膜过滤：将步骤（2）水用反渗透膜进行反渗透处理；
（4）EDI处理：通过电去离子处理深度除盐后得到纯水；
（5）紫外线杀菌：将EDI处理后得到的纯水经紫外线照射处理；
（6）精密过滤器：经紫外线照射处理后的水用精密过滤器进行过滤，得到超纯水。
实施例1
一种EDI水处理工艺，具体步骤如下：
（1）预处理：将自来水通过软化器降低水的硬度，同时去除铁污染，延长使用寿命，增强弱酸物质的除去效果因无钙镁垢之忧；将CO2及SiO2转化为离子状态而加以除去。
（2）降低水的PH值：将预处理的水通过加酸或其他降低进水pH值；
（3）反渗透膜过滤：将步骤（2）水用醋酸纤维素卷式膜进行反渗透处理；
（4）EDI处理：通过电去离子处理深度除盐后得到纯水，纯水硬度最大为1.0ppm；
（5）紫外线杀菌：将EDI处理后得到的纯水经紫外线照射处理；
（6）精密过滤器：经紫外线照射处理后的水用精密过滤器进行过滤，精密过滤器过滤精度为0.1，得到超纯水。
以上所述，仅为本发明的具体实施方式，但发明的保护范围并不局限于此，任何熟悉本领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在发明的保护范围之内。
Claims (5)
1.一种EDI水处理工艺，其特征在于具体步骤如下：
（1）预处理：将自来水通过软化器降低水的硬度，同时去除铁污染，延长使用寿命，增强弱酸物质的除去效果因无钙镁垢之忧；
（2）降低水的PH值：将预处理的水通过加酸或其他降低进水pH值；
（3）反渗透膜过滤：将步骤（2）水用反渗透膜进行反渗透处理；
（4）EDI处理：通过电去离子处理深度除盐后得到纯水；
（5）紫外线杀菌：将EDI处理后得到的纯水经紫外线照射处理；
（6）精密过滤器：经紫外线照射处理后的水用精密过滤器进行过滤，得到超纯水。
2.根据权利要求1所述的一种EDI水处理工艺，其特征在于：步骤（1）中将CO2及SiO2转化为离子状态而加以除去。
3.根据权利要求1所述的一种EDI水处理工艺，其特征在于：步骤（3）中反渗透膜为醋酸纤维素卷式膜。
4.根据权利要求1所述的一种EDI水处理工艺，其特征在于：步骤（4）中纯水硬度最大为1.0ppm。
5.根据权利要求1所述的一种EDI水处理工艺，其特征在于：步骤（6）中精密过滤器过滤精度为0.1。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810996975.2A CN109179817A (zh) | 2018-08-29 | 2018-08-29 | 一种edi水处理工艺 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810996975.2A CN109179817A (zh) | 2018-08-29 | 2018-08-29 | 一种edi水处理工艺 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109179817A true CN109179817A (zh) | 2019-01-11 |
Family
ID=64916744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810996975.2A Pending CN109179817A (zh) | 2018-08-29 | 2018-08-29 | 一种edi水处理工艺 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109179817A (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656099A (zh) * | 2022-03-25 | 2022-06-24 | 东莞东元环境科技股份有限公司 | 含氟废水回收的方法及系统 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090095666A1 (en) * | 2007-07-06 | 2009-04-16 | Christopher Heiss | Media-Free System For The Production Of High Purity Water And Methods Of Use |
| CN102781844A (zh) * | 2009-11-12 | 2012-11-14 | 通用电气公司 | 具有设备工艺水总零排放的气化设备 |
| CN105014520A (zh) * | 2015-08-13 | 2015-11-04 | 江苏吉星新材料有限公司 | 一种蓝宝石衬底片浸没式化学机械抛光方法 |
| CN108046493A (zh) * | 2017-12-25 | 2018-05-18 | 浙江华强环境科技有限公司 | 一种新型超纯水处理工艺 |
-
2018
- 2018-08-29 CN CN201810996975.2A patent/CN109179817A/zh active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090095666A1 (en) * | 2007-07-06 | 2009-04-16 | Christopher Heiss | Media-Free System For The Production Of High Purity Water And Methods Of Use |
| CN102781844A (zh) * | 2009-11-12 | 2012-11-14 | 通用电气公司 | 具有设备工艺水总零排放的气化设备 |
| CN105014520A (zh) * | 2015-08-13 | 2015-11-04 | 江苏吉星新材料有限公司 | 一种蓝宝石衬底片浸没式化学机械抛光方法 |
| CN108046493A (zh) * | 2017-12-25 | 2018-05-18 | 浙江华强环境科技有限公司 | 一种新型超纯水处理工艺 |
Non-Patent Citations (2)
| Title |
|---|
| 冯逸仙: "《反渗透水处理系统工程》", 28 February 2005, 中国电力出版社 * |
| 张虎山等: "《压水型核反应堆水化学工况控制与水质监测》", 31 July 2011, 海洋出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656099A (zh) * | 2022-03-25 | 2022-06-24 | 东莞东元环境科技股份有限公司 | 含氟废水回收的方法及系统 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI648093B (zh) | 超純水製造裝置以及超純水製造方法 | |
| WO2015012054A1 (ja) | ホウ素含有水の処理方法及び装置 | |
| Ricci et al. | Assessment of the chemical stability of nanofiltration and reverse osmosis membranes employed in treatment of acid gold mining effluent | |
| SA516371234B1 (ar) | طريقة لمعالجة المياه | |
| JP5834492B2 (ja) | 超純水製造装置 | |
| CN102603106A (zh) | 利用膜蒸馏处理工业废水的组合系统和方法 | |
| Nguyen et al. | Chemical cleaning of ultrafiltration membrane fouled by an activated sludge effluent | |
| Chu et al. | Specific investigation of irreversible membrane fouling in excess of critical flux for irreversibility: A pilot-scale operation for water treatment | |
| KR101550702B1 (ko) | 높은 회수율로 정수 생산을 위한 막여과 정수 처리 시스템 및 방법 | |
| Qin et al. | Reservoir water treatment using hybrid coagulation–ultrafiltration | |
| Shang et al. | The impact of EfOM, NOM and cations on phosphate rejection by tight ceramic ultrafiltration | |
| CN106587462A (zh) | 一种用于纳滤膜中央净水系统的处理方法 | |
| CN109179817A (zh) | 一种edi水处理工艺 | |
| CN111777244A (zh) | 一种超纯水制备系统及其制备工艺 | |
| JP2008086945A (ja) | 選択的透過膜の性能回復方法 | |
| CN105884079A (zh) | 苦咸水反渗透处理工艺 | |
| JP2013193004A (ja) | 純水製造方法 | |
| Ferrer‐Polonio et al. | Fractionation of secondary effluents of wastewater treatment plants in view of the evaluation of membrane fouling in a further ultrafiltration step | |
| WO2018105569A1 (ja) | 水処理方法および装置 | |
| CN108046493A (zh) | 一种新型超纯水处理工艺 | |
| JP2019118891A (ja) | 純水製造装置及び純水製造方法 | |
| CN107662991A (zh) | 一种超纯水制备系统 | |
| CN106045156A (zh) | 一种纳滤膜中央净水处理系统及处理方法 | |
| US20170267550A1 (en) | Ultrapure water producing method | |
| CN202829755U (zh) | 超纯水制备系统 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190111 |