lehu乐虎

When the pressure transmitter is installed on site, there are many phenomena that the relevant pressure and differential pressure transmitters reflect incorrect process parameters: there are problems of blockage of impulse pipe, non-standard installation of throttling device, condensate tank and imp...

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...

We all know that there are many types of water purifiers, and the water purified by each type of water purifier is different. According to the degree of purification, the purified water can be divided into purified water, pure water and soft water. What is the difference between these three water qu...

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, ...

Improper preparation of bid documents will not only become invalid bids, but also easily lead to bid abandonment. If there are less than three suppliers meeting professional conditions or substantially responding to the bidding documents, the bid shall be abandoned. More importantly, the bid documen...

Discussion on resource recovery and utilization of reverse osmosis concentrated water 1. Basic information The wastewater is concentrated brine discharged from the primary reverse osmosis desalination unit. Concentrated water will be produced during the preparation of pure water by reverse osmosis...

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...

Oil and grease cannot be contained in the reverse osmosis feed water, because the presence of oil and grease in the raw water may cause chemical degradation of the aromatic polyamide active layer of the reverse osmosis membrane in the application process and cause degradation of membrane performance...

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, ...