Technology world
2021-09-20
[collection] operating procedures for MBR membrane cleaning
1、 MBR membrane fouling judgment
On line maintenance and cleaning: it has nothing to do with the pressure difference. Stop filtering regularly (about once a week) and drive the low concentration (300 ~ 500mg / L) solution into the membrane for cleaning.
Online enhanced washing: monitor and manage...
2021-09-16
Working principle of manganese and iron removal from groundwater (manganese sand)
Working principle of manganese and iron removal by manganese sand
There are many methods to remove iron and manganese. Generally, the principle of oxidative removal of iron and manganese is adopted. It is the most economical and effective treatment method at present. Many equipment use natural mang...
2021-08-30
Complete collection of pump faults and solutions water treatment equipment
Can't the water pump start? Insufficient flow? Can't suck water? Vibration, noise, motor failure... What should I do?
The water pump cannot be started
Common causes: the packing is too tight or the impeller and pump body are blocked by sundries; The pump shaft, bearing and leakage reducing...
2021-08-28
Do you know how to debug the water treatment reverse osmosis pressure switch?
The high / low pressure protection of water treatment reverse osmosis equipment is to prevent the RO high-pressure pump from idling or working under the limit high / low pressure.
High voltage switch is used for high voltage protection. With the increase of equipment service time, the membrane will...
2021-08-09
Environmental protection knowledge competition | complete question bank, pure water equipment, ultra pure water equipment manufacturers
（1） Judgment question:
We can dispose of domestic garbage in the way we want. （ (wrong)
2. Within the closed protection area of sandy land, all activities damaging vegetation are prohibited. （ Right)
3. Poor visibility in haze days is caused by PM2.5. （ (wrong)
4 coal and oil are renewable ene...
2021-08-28
UV sterilizer PK ozone generator, cure selection difficulties, pure water equipment, ultra pure water equipment manufacturers
Compared with other sterilization and disinfection methods, ultraviolet sterilizer and ozone generator are more widely used in water treatment industry in recent years. Ultraviolet rays can destroy bacterial DNA, and ozone can play a strong role in oxidation. They have their own advantages in steril...
2021-07-31
Relationship between pump head and flow? How to calculate the lift? Pure water equipment ultra pure water equipment manufacturer
泵的揚程計算是選擇泵的重要依據，泵揚程與流量的關系可以參照下面這張圖。
泵揚程由管網系統的安裝和操作條件決定，計算前應首先繪制流程草圖，平、立面布置圖，計算出管線的長度、管徑及管件型式和數量。
一般管網如下圖所示
D——排出幾何高度，m；
取值：高于泵入口中心線：為正；低于泵入口中心線：為負；
S——吸入幾何高度，m；
取值：高于泵入口中心線：為負；低于泵入口中心線：為正；
Pd、Ps——容器內操作壓力，m液柱（表壓）；
取值：以表壓正負為準
Hf1——直管阻...
2021-07-29
[knowledge] coagulation? Flocculation? Coagulation aid? Silly can't tell? A text to take you to understand Pure water equipment, ultrapure water equipment
混凝？絮凝？助凝？
在水處理藥劑中，應用最廣泛的是當屬混凝與絮凝、聚合氯化鋁與聚丙烯酰胺了。那么兩者在使用過程中具體有哪些注意事項？讓我們一來一探究竟。
凝聚：投加混凝劑后水中的膠體失去穩定性，膠體顆?；ハ嗄?，結果形成眾多的“小礬花”。
絮凝：凝聚過程中形成的“小礬花”通過吸附、卷帶、架橋等作用，形成顆粒較大絮凝體的過程。
混凝：是凝聚、絮凝兩個過程的總稱。是水中膠體粒子及微小懸浮物的聚集過程。
也就是說，“混凝”包含了從原水投藥到水混合、藥反應（脫穩、絮凝）再到形成大顆粒的絮凝物的整個過程。
而絮凝是指膠體...
