久久久久国产精品-兄弟的妈妈免费观看电视剧完整版中-午夜秋霞-成人av小说-男生女生叉叉-9l视频自拍九色9l视频成人-亚洲一区欧美一区-热re99久久精品国产99热-日韩免费中文字幕-男生捅女生肌肌-久久爱网-雪臀抽搐求饶娇喘呻吟-av在线播放地址-黄色一级片a-欧日韩精品-天天操天天射天天舔-91网站大全-不用播放器的免费av-91九色精品-依人网站-亚洲区小说区图片区qvod按摩-99精品区-古代黄色一级片-九九九九九九九九九-性福宝草莓视频app-欧美日韩成人免费-深夜91-亚洲av无码久久忘忧草-日本免费看黄-激情丁香综合

Solution
Ultra pure water systems in other industries

Ultra pure water systems in other industries

Ultra pure water is widely used in solar photovoltaics, optical photovoltaics, new energy and new materials LED、PCB、 Industries such as sapphire.

Technical specifications for national electronic grade ultrapure water

Project

Specification

EW-I

EW-Ⅱ

EW-Ⅲ

EW-IV

Resistivity(25℃)/MQ ·cm

≥18

(5% of the time not less than 17)

≥15

(5% of the time not less than 13)

≥12.0

≥0.5

All silicon/(μg/L)

≤2

≤10

≤50

≤1000

Particle count/(pcs/L)

0.05μm~0.1μm

500

-

-

-

0.1μm~0.2μm

300

-

-

-

0.2μm~0.3μm

50

-

-

-

0.3μm~0.5μm

20

-

-

-

>0.5μm

4

-

-

-

Number of bacteria/(pcs/mL)

≤0.01

≤0.1

≤10

≤100

Copper/(μ g/L)

≤0.2

≤1

≤2

≤500

Zinc/(μg/L)

≤0.2

≤1

≤5

≤500

Nickel/(μg/L)

≤0.1

≤1

≤2

≤500

Sodium/(μ g/L)

≤0.5

≤2

≤5

≤1000

Potassium/(μ g/L)

≤0.5

≤2

≤5

≤500

Iron/(μ g/L)

≤0.1

-

-

-

Lead/(μ g/L)

≤0.1

-

-

-

Fluorine/(μ g/L)

≤1

-

 

 

Chlorine/(μ g/L)

≤1

≤1

≤10

≤1000

Nitrite/(μ g/L)

≤1

-

-

-

Bromine/(μ g/L)

≤1

-

-

-

Nitrate radical/(μ g/L)

≤1

≤1

≤5

≤500

Phosphate radical/(μ g/L)

≤1

≤1

≤5

≤500

Sulfate radical/(μ g/L)

≤1

≤1

≤5

≤500

Total organic carbon/(μ g/L)

≤20

≤100

≤200

 

 

Typical ultra pure water process flow

Process features: Most of the salt in the water is removed by reverse osmosis, and the MB system is used to produce high-purity water in the later stage, which can effectively prolong the regeneration cycle of the MB system and reduce the use of acid and alkali.

 

Improve the pure water process flow

Process characteristics: The emergence of reverse osmosis and EDI has changed the low desalination efficiency of traditional anion/cation beds, completely abandoning the use of acid and alkali, and achieving green production throughout the entire process.

Full membrane pure water process flow

Process characteristics: The full membrane water treatment process further optimizes and improves the pretreatment system, enhances the pretreatment effect, broadens the inlet conditions, and can effectively achieve the recycling and reuse of reclaimed water.