аⅴ天堂最新版在线中文丨久久天天躁狠狠躁夜夜躁2o2o丨国产人妻精品无码av在线丨强伦姧人妻三上悠亚中文字幕丨国产亚洲欧美一区二

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.

主站蜘蛛池模板: 屯留县| 郴州市| 绥阳县| 武安市| 正阳县| 宁河县| 丹凤县| 平南县| 安溪县| 离岛区| 米林县| 青河县| 阿拉善盟| 堆龙德庆县| 三原县| 屯留县| 肃北| 电白县| 廉江市| 高台县| 海安县| 黑龙江省| 龙海市| 山丹县| 宁远县| 安国市| 监利县| 广德县| 宜川县| 武功县| 南昌县| 武强县| 五莲县| 长武县| 云霄县| 麻城市| 新化县| 容城县| 措美县| 广西| 万载县|