Pump is a necessary and common equipment in water treatment engineering. This knowledge and experience is very important. This article is a collection of 148 technical questions and answers about pump compiled by an engineer who has worked for 19 years. Dry goods are practical! 1. What is a pump? ...

1. Desalination rate and salt permeability of reverse osmosis membrane Salt transmittance = produced water concentration / influent concentration × 100% Desalination rate = (1 – salt content of produced water / salt content of influent) × 100% Salt penetration rate = 100% &ndash...

In order to prevent the growth of organisms on the membrane surface during storage and the degradation of performance in subsequent operations, the membrane elements must be stored in a special solution. New module: (1) The membrane elements have been tested with water before leaving the factory, ...

Reverse osmosis membrane separation technology (RO Technology for short) is a new and practical water treatment technology. For a specific reverse osmosis system, the long-term stability of its performance is indispensable. The success of long-term performance of reverse osmosis system depends on no...

After the membrane system operates for a period of time, sometimes the processing capacity decreases significantly and can not reach the design capacity. The reasons for this phenomenon are mainly related to the working environment of membrane system, type selection and design, installation and cons...

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...

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...