Reverse osmosis water treatment method and equipment with high desalination and high water productivity

A technology of reverse osmosis water and treatment method, which is applied in osmosis/dialysis water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. Low problems, to achieve the effect of reduced operating costs, stable system operation, and reduced investment costs

Inactive Publication Date: 2010-02-10
郭静
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of low recovery rate, complex process, reverse osmosis membrane pollution, economical efficiency and operation safety of the reverse osmosis system in the above prior art, the present invention provides a method and equipment for tr

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  • Reverse osmosis water treatment method and equipment with high desalination and high water productivity
  • Reverse osmosis water treatment method and equipment with high desalination and high water productivity

Examples

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Embodiment 1

[0045] The high desalination and high water production rate reverse osmosis water treatment equipment of the present invention includes a coagulation clarification and filtration system 1, a raw water pump 2, and a depth filtration system 3. The system uses a multi-media filter, and an ion exchange softening system 4. The system uses two stages Single-layer fixed ion exchange softening bed, degassing system 5, degassing tower selected for degassing system, decarburization water tank 6, reverse osmosis high pressure pump 7, dosing system 8, high desalination and high water production rate reverse osmosis system 9. The method of the present invention comprises that the raw water is industrial sewage with high turbidity, high silicon content and high COD, and the raw water is filtered in the coagulation clarification filtration system 1 to remove suspended particles, colloids and some organic matter in the water; and then pass the raw water pump 2 Send to the deep filtration syste...

Embodiment 2

[0047] The reverse osmosis water treatment equipment with high desalination and high water production rate of the present invention includes a lime softening system 10, a raw water pump 2, and a deep filter system 3. The system uses a high-efficiency fiber filter, and an ion exchange softening system 4. The system uses a single-layer Floating ion exchange softening bed, degassing system 5, the system uses degassing membrane device, decarbonization water tank 6, reverse osmosis water inlet pump 11, 5 micron precision filter 12, reverse osmosis high pressure pump 7, dosing system 8, high desalination High water production rate reverse osmosis system9. The method of the present invention comprises that the raw water is the mixed water of industrial sewage after biochemical treatment and polluted surface water, the raw water first enters the lime softening system 10, adopts the lime softening process to remove part of the hardness, and reduces the load of the ion exchange softening...

Embodiment 3

[0049] Same as Example 2, wherein the ion exchange softening system 4 selects a two-stage single-layer fixed ion exchange softening bed, adopts soda lime softening process to remove hardness in the lime softening system, adds scale inhibitor at 0.5ppm, and produces water recovery rate of 85%. %about.

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Abstract

The invention relates to a reverse osmosis water treatment method and equipment with high desalination and high water productivity. The method comprises the technical scheme that: raw water is filtered through a deep bed filter system and is sent into an ion-exchange softening system for softening treatment to remove hardness, forms reverse osmosis influent water after PH value adjustment, and issent to a high-desalination and high water productivity reverse osmosis system for desalinating after the influent water is pressurized by a reverse osmosis high pressure pump, wherein the high-desalination and high water productivity reverse osmosis system is adjusted to control the reverse osmosis recovery rate at between 75 and 90 percent. The water treatment method and equipment can effectively treat sewage, have water concentration rate of between 10 and 25 percent, and have smaller raw water consumption amount than that of the prior reverse osmosis system under a condition of equal wateryield, have smaller damage to a reverse osmosis system film, and are more economic and practical.

Description

technical field [0001] The invention relates to a method and equipment for reverse osmosis treatment of raw water, in particular to a reverse osmosis treatment method and equipment with high desalination and high water production rate. Background technique [0002] The principle of reverse osmosis water treatment technology is the reverse process of the osmosis phenomenon in nature, that is, the external driving force overcomes the osmotic pressure to make the water in the brine pass through the membrane reversely. Under the condition of feed water temperature, reverse osmosis uses a physical method without phase change to desalinate and purify brine, which has low energy consumption, does not require a large amount of chemical agents and acid and alkali regeneration treatment, and has no chemical waste except for chemical cleaning of the membrane. And waste acid, lye discharge, no environmental pollution, continuous operation of water production, simple system, convenient o...

Claims

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Application Information

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IPC IPC(8): C02F9/02C02F1/44C02F1/42
CPCY02A20/131
Inventor 郭静
Owner 郭静
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