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: 汕头市| 水城县| 安丘市| 桃源县| 忻城县| 郁南县| 贵德县| 南川市| 张掖市| 长兴县| 闽清县| 黄浦区| 塘沽区| 南康市| 台州市| 博白县| 桂平市| 庐江县| 清苑县| 报价| 乌兰浩特市| 姚安县| 奉新县| 莱阳市| 酒泉市| 陆丰市| 易门县| 皋兰县| 石台县| 台东县| 阳高县| 赤峰市| 申扎县| 泗阳县| 方城县| 朝阳区| 元江| 莲花县| 肇东市| 厦门市| 铁力市|