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Before talking about the role of reverse osmosis scale inhibitor, the water treatment equipment briefly describes the reverse osmosis system: the reverse osmosis water treatment equipment passes the raw water through precision filter, granular activated carbon filter, compressed activated carbon fil...

Common water treatment methods include: (I) sediment filtration method, (II) hard water softening method, (III) activated carbon adsorption method, (IV) deionization method, (V) reverse osmosis method, (VI) excess filtration method, (VII) distillation method, (VIII) ultraviolet disinfection method, ...

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...

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...

Summarize the common problems and answers in sewage treatment practice: Question 1: Process: hydrolysis + contact oxidation method. The COD of effluent is 70mg / L, but it looks very turbid. I don't know why? Is the method of measuring MLSS the same as that of Measuring SS? answer: (1) If to...

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...

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...

Which word is pH abbreviated? After middle school and entering the health care mode in advance, we must be familiar with the concept of pH. In addition to the pH of the solution, the human body also has pH, which is judged according to the pH of body fluid (body fluid or body fluid). PH value 7 i...

（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...

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...

1. What is water self purification? Self purification of water body: the polluted river reduces or transforms the concentration of pollutants through physical, chemical and biological effects, and the water body returns to its original state, or reduces from exceeding the water quality standard to ...

泵的扬程计算是选择泵的重要依据，泵扬程与流量的关系可以参照下面这张图。 泵扬程由管网系统的安装和操作条件决定，计算前应首先绘制流程草图，平、立面布置图，计算出管线的长度、管径及管件型式和数量。 一般管网如下图所示 D——排出几何高度，m； 取值：高于泵入口中心线：为正；低于泵入口中心线：为负； S——吸入几何高度，m； 取值：高于泵入口中心线：为负；低于泵入口中心线：为正； Pd、Ps——容器内操作压力，m液柱（表压）； 取值：以表压正负为准 Hf1——直管阻...