CN109179816A - 一种超纯水工艺提纯工艺 - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000010612 desalination reaction Methods 0.000 claims abstract description 8
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 238000005498 polishing Methods 0.000 claims abstract description 6
- 239000006004 Quartz sand Substances 0.000 claims abstract description 4
- 238000009298 carbon filtering Methods 0.000 claims abstract description 4
- 238000009287 sand filtration Methods 0.000 claims abstract description 4
- 230000001954 sterilising effect Effects 0.000 claims abstract description 4
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- 238000001223 reverse osmosis Methods 0.000 claims description 10
- 239000012498 ultrapure water Substances 0.000 claims description 9
- 238000005342 ion exchange Methods 0.000 claims description 8
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 7
- 239000003456 ion exchange resin Substances 0.000 claims description 7
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 6
- 230000005684 electric field Effects 0.000 claims description 4
- 230000005012 migration Effects 0.000 claims description 4
- 238000013508 migration Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 230000001172 regenerating effect Effects 0.000 claims description 4
- 238000001764 infiltration Methods 0.000 claims description 3
- 241000894006 Bacteria Species 0.000 claims description 2
- 241000700605 Viruses Species 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000008595 infiltration Effects 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims description 2
- 239000007791 liquid phase Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 150000002500 ions Chemical class 0.000 description 8
- 229910021642 ultra pure water Inorganic materials 0.000 description 7
- 239000004576 sand Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical class [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Classifications
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- 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
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- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
本发明公开了一种超纯水工艺提纯工艺,具体步骤如下:(1)预处理单元:采用石英砂过滤、活性炭过滤、保安过滤作为两级反渗透的预处理;(2)膜系统单元:负责去除水中大部分的有害物质,保证终端产水达到标准要求;采用辅以pH值调节的两级反渗透作为初级脱盐工艺,EDI模块作为深度脱盐工艺;(3)供水单元:纯水供水循环采用254nm紫外线杀菌、抛光混床脱盐、0.22微米过滤,达到用户的纯水水质要求;(4)终端过滤器:终端过滤器由罐体、0.22μm滤芯、压力表组成;本发明的优点该工艺流程简单、配置合理有效、处理效率高。
Description
技术领域
本发明涉及水处理技术领域,尤其涉及一种超纯水工艺提纯工艺。
背景技术
超纯水,是一般的纯水处理设备很难达到的处理程度,通常采用预处理、反渗透技术、超纯水处理设备以及后级处理四大步骤,多级过滤、高性能离子交换 ( 抛光 )、超滤过滤器、紫外灯、除 TOC 装置等多种处理方法,电阻率方可达 18.25MΩ*cm;超纯水处理设备的工艺流程大致分成以下几种 : 1、采用离子交换树脂制备超纯水的传统水处理方式,其基本工艺流程为 :原水→沙炭 过滤器→精密过滤器→阳床→阴床→混床 ( 复床 ) →纯水箱→纯水泵→后置精密过滤器→用水点 ;2、采用反渗透水处理设备与离子交换设备进行组合的方式,其基本工艺流程为 :原水 →沙炭过滤器→精密过滤器→反渗透设备→纯水箱→混床 ( 复床 ) →超纯水箱→超纯水 泵→后置精密过滤器→用水点 超纯水处理设备工艺的优缺点分别列于下面,1、第一种采用离子交换树脂其优点在于投资少,占用的地方少,但缺点就是需要经 常进行离子再生,耗费大量酸碱,而且对环境有一定的破坏性;2、第二种采用反渗透作为预处理再配上离子交换设备,其特点为初投次比采用离 子交换树脂方式要高,但离子设备再生周期相对要长,耗费的酸碱比单纯采用离子树脂的 方式要少很多。但对环境还是有一定的破坏性。
发明内容
为了克服上述缺陷,本发明提出了一种超纯水工艺提纯工艺,具体步骤如下:
(1)预处理单元 :采用石英砂过滤、活性炭过滤、保安过滤作为两级反渗透的预处理;
(2)膜系统单元 :负责去除水中大部分的有害物质,保证终端产水达到标准要求;采用辅以pH值调节的两级反渗透作为初级脱盐工艺,EDI模块作为深度脱盐工艺;
(3)供水单元:纯水供水循环采用254nm紫外线杀菌、抛光混床脱盐、0.22微米过滤,达到用户的纯水水质要求;
(4)终端过滤器: 终端过滤器由罐体、0.22μm滤芯、压力表组成。
本发明的优点:自来水进入原水箱,通过原水泵增压,经砂滤器、炭滤器、阻垢剂加药、保安过滤器,到达反渗透单元,经两级反渗透过滤进入EDI单元,达到电阻率15MΩ.cm(25℃)进入纯水水箱。纯水供水设计为循环方式,经纯水供水泵增压,通过紫外线消毒器、抛光混床、0.22微米过滤器接入纯水供水管,到达使用点,该工艺流程简单、配置合理有效、处理效 率高。
具体实施方式
一种超纯水工艺提纯工艺,具体步骤如下:
(1)预处理单元 :采用石英砂过滤、活性炭过滤、保安过滤作为两级反渗透的预处理;
(2)膜系统单元 :负责去除水中大部分的有害物质,保证终端产水达到标准要求;采用辅以pH值调节的两级反渗透作为初级脱盐工艺,EDI模块作为深度脱盐工艺。
反渗透采用反渗透膜以压力差为驱动力的液相膜分离方法,可以看作是渗透的一种反向作用;在压力推动下,溶液中的水分子透过膜,而其它分子、离子、细菌、病毒等被截留,从而实现脱盐效果,达到纯化目的。
整个反渗透系统由高压泵、反渗透膜、压力容器以及相应的仪器、仪表、阀门、机架、管道及管件等组成。
EDI模块是将膜法和离子交换法结合起来的新工艺,基本原理主要包括离子交换、直流电场下离子的选择性迁移及树脂的电再生;水中的离子首先通过交换作用吸附于树脂颗粒上,再在电场作用下经由树脂颗粒构成的“离子传输通道”迁移到膜表面并透过离子交换膜进入浓室。由于离子的交换、迁移及离子交换树脂的电再生相伴发生,犹如边工作边再生的混床离子交换树脂柱,因此可以连续不断地制取高质量的纯水、高纯水。
EDI模块由增压泵、膜堆、电源以及相应的仪器、仪表、阀门、机架、管道等组成。
(3)供水单元:纯水供水循环采用254nm紫外线杀菌、抛光混床脱盐、0.22微米过滤,达到用户的纯水水质要求;
(4)终端过滤器: 终端过滤器由罐体、0.22μm滤芯、压力表组成。
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 (7)
1.一种超纯水工艺提纯工艺,其特征在于具体步骤如下:
(1)预处理单元:采用石英砂过滤、活性炭过滤、保安过滤作为两级反渗透的预处理;
(2)膜系统单元 :负责去除水中大部分的有害物质,保证终端产水达到标准要求;采用辅以pH值调节的两级反渗透作为初级脱盐工艺,EDI模块作为深度脱盐工艺;
(3)供水单元:纯水供水循环采用254nm紫外线杀菌、抛光混床脱盐、0.22微米过滤,达到用户的纯水水质要求;
(4)终端过滤器: 终端过滤器由罐体、0.22μm滤芯、压力表组成。
2.根据权利要求1所述的一种超纯水工艺提纯工艺,其特征在于:步骤(2)中反渗透采用反渗透膜以压力差为驱动力的液相膜分离方法,可以看作是渗透的一种反向作用,在压力推动下,溶液中的水分子透过膜,而其它分子、离子、细菌、病毒等被截留。
3.根据权利要求1所述的一种超纯水工艺提纯工艺,其特征在于:步骤(2)中EDI模块是将膜法和离子交换法结合起来的新工艺,基本原理主要包括离子交换、直流电场下离子的选择性迁移及树脂的电再生。
4.水中的离子首先通过交换作用吸附于树脂颗粒上,再在电场作用下经由树脂颗粒构成的“离子传输通道”迁移到膜表面并透过离子交换膜进入浓室。
5.由于离子的交换、迁移及离子交换树脂的电再生相伴发生,犹如边工作边再生的混床离子交换树脂柱,因此可以连续不断地制取高质量的纯水、高纯水。
6.根据权利要求3所述的一种超纯水工艺提纯工艺,其特征在于:EDI模块由增压泵、膜堆、电源以及相应的仪器、仪表、阀门、机架、管道等组成。
7.根据权利要求1所述的一种超纯水工艺提纯工艺,其特征在于:步骤(3)中供水单元的终端设有过滤器,过滤器内装折叠式微孔滤膜,过滤精度0.22μm。
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Cited By (3)
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CN109879500A (zh) * | 2019-03-27 | 2019-06-14 | 兆德(南通)电子科技有限公司 | 一种超纯水处理工艺 |
CN112537772A (zh) * | 2020-11-25 | 2021-03-23 | 河南省大潮炭能科技有限公司 | 一种超级电容器材料的制备方法 |
CN115627107A (zh) * | 2022-10-10 | 2023-01-20 | 重庆航利实业有限责任公司 | 一种除锈涂层及其制备装置 |
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CN115627107A (zh) * | 2022-10-10 | 2023-01-20 | 重庆航利实业有限责任公司 | 一种除锈涂层及其制备装置 |
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Application publication date: 20190111 |