Maintenance and maintenance of reverse osmosis equipment

Reverse osmosis is the most sophisticated membrane-based liquid separation technique. The operating pressure is applied to the influent (concentrated solution) side to overcome the natural osmotic pressure. When the operating pressure is higher than the natural osmotic pressure, the water molecules naturally penetrate when added to the concentrated solution side. The flow direction will be reversed, and the water molecules in the influent (concentrated solution) will pass through the reverse osmosis membrane to become purified water on the dilute solution side; the reverse osmosis equipment can block all dissolved salts and organic matter with molecular weight greater than 100, but allow water Molecular transmission, reverse osmosis composite membrane desalination rate is generally greater than 98%, they are widely used in industrial pure water and electronic ultrapure water preparation, drinking pure water production, boiler feed water and other processes, the use of reverse osmosis equipment before ion exchange can be greatly Emissions of water and wastewater from bottoming operations.

Reverse osmosis equipment produced by Minjiang Water Treatment Equipment Engineering Co., Ltd.:

The influent water quality requires a total hardness of ≤500PPM, the maximum operating temperature is not higher than 45°C, and the continuous moving PH range is 2<PH<11;

The effluent water quality desalination rate is >99%, and the water quality conductivity bottom is below 10us/cm;

The equipment can be divided into fully automatic and semi-automatic operation, convenient and continuous normal operation without manual operation.

The common process flow of reverse osmosis equipment is:

Sand filtration → carbon filtration → softening → reverse osmosis host

Sand filter → carbon filter → reverse osmosis host

The equipment is easy to operate and the effluent water quality is stable; the water output of the equipment is designed according to the requirements of the customer, and the process of the equipment is improved according to the local water quality. The selection of equipment materials can be adjusted according to your needs.

Several common problems in equipment operation:

Reverse osmosis membrane service life: Reverse osmosis membrane is the most expensive component of a set of equipment. Its length of life is related to the cost of the whole equipment. The service life of normal membrane components is more than three years, but only if it is Whether the selection of the whole set of equipment is reasonable, the operation method is proper, the materials are replaced in time, and the membrane elements are regularly cleaned and maintained according to the situation.

The effluent water quality conductance rises: the condition of each period of equipment needs to be recorded in time. If the conductance is rising slowly, the desalination rate is a little normal at a slight drop. It is only necessary to do the corresponding maintenance according to the reason of the rise of the conductance. If the conductivity rises suddenly, it is necessary to test whether the component is damaged, the water quality of the raw water changes greatly, or the failure of a certain pretreatment material.

After the reverse osmosis membrane is washed, the water quality does not change much: a, whether the component is damaged b, whether a certain pretreatment material fails or not. When the membrane is washed, it is not clear which membrane element is contaminated and contaminated by the species, and the opposite symptom is

The system pressure difference is too large: according to different membrane components, the pressure difference of the system should be controlled within a reasonable range to avoid damage to the membrane components.

The raw water utilization rate is not high, and the concentrated water discharge is too large: whether the influent flow rate is sufficient, whether the pressure reaches the working condition of the material, whether the equipment design is reasonable, etc.

Love Goji juice is without any preservatives and additives, which can be stored at room temperature, and raw materials of which are selected from GAP standard planting base in Zhongning County, Ningxia Hui Autonomous Region.

 

After cleaning, removing pesticide residues, leaching, pre-disinfection, crushing, grinding, anti-oxidation treatment, sterilization, and aseptic filing, Love goji juice is got, maintaining the natural nutrition in maximum, which is widely used as raw materials of functional beverages.

 

The company has completed HACCP verification and passed ISO9001 certification, in addition, for the world market, it has got the European Union ECOCERT organic certification and USDAs National Organic Program (NOP) certification.

Annual output of organic Goji products is at 500 tons, which is in line with European and US organic standards; annual output of ordinary Goji is at 3,000 tons.

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