Geothermal water purification treatment technology

A technology for purification treatment and geothermal water, applied in the field of water treatment, can solve the problems of unstable treatment effect, unqualified treatment water quality, low heat utilization rate, etc., and achieve the effect of avoiding equipment corrosion problems and stable and reliable effluent quality.

Active Publication Date: 2016-08-10
江苏汉威换热科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a geothermal water purification treatment process to solve technical problems such as unstable treatment effect, unqualified treatment water quality, and low heat utilization rate of conventional treatment methods, and realize that the treated water can be directly used for heating and supplying Thermal requirements, efficient use of geothermal water resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A geothermal water purification treatment process, comprising the following process steps:

[0020] (1) Press the geothermal water by 2m 3 / hh flow into the geothermal water purification system, geothermal water first enters the filter, the upper layer of the filter is activated carbon, the middle layer is natural manganese sand, and the bottom layer is a mixture of cerium trichloride and chitosan with a mass ratio of 1:9 , the activated carbon layer and the natural manganese sand layer mainly adsorb and filter iron ions and manganese ions, and the cerium trichloride and chitosan layers mainly adsorb and filter boron-containing compounds. Backwash, water backwash intensity is 0.5m 3 / min·m 2 , the gas backwash intensity is 5.5m 3 / min·m 2 , backwash lasted 15min;

[0021] (2) Filter the effluent from step (1) through the ultrafiltration membrane module. The ultrafiltration membrane system adopts a tubular inorganic ceramic membrane with a pore size of 0.03 μm and a...

Embodiment 2

[0024] A geothermal water purification treatment process, comprising the following process steps:

[0025] (1) Dilute the geothermal water by 4.5m 3 / h flow into the geothermal water purification system, geothermal water first enters the filter, the upper layer of the filter is activated carbon, the middle layer is natural manganese sand, and the bottom layer is a mixture of cerium trichloride and chitosan with a mass ratio of 1:10 , the activated carbon layer and the natural manganese sand layer mainly adsorb and filter iron ions and manganese ions, and the cerium trichloride and chitosan layers mainly adsorb and filter boron-containing compounds. The design flow rate is 4.5m / h. For backwashing, the water backwashing intensity is 2.5m 3 / min·m 2 , the gas backwash intensity is 7.5m 3 / min·m 2 , backwash lasted 30min;

[0026] (2) Filter the water from step (1) through the ultrafiltration membrane module. The ultrafiltration membrane system adopts a tubular inorganic cera...

Embodiment 3

[0029] A geothermal water purification treatment process, comprising the following process steps:

[0030] (1) Press the geothermal water to 3.5m3 / h flow into the geothermal water purification system, geothermal water first enters the filter, the upper layer of the filter is activated carbon, the middle layer is natural manganese sand, and the bottom layer is a mixture of cerium trichloride and chitosan with a mass ratio of 1:8 , the activated carbon layer and the natural manganese sand layer mainly adsorb and filter iron ions and manganese ions, and the cerium trichloride and chitosan layers mainly adsorb and filter boron-containing compounds. The design flow rate is 2.5m / h. For backwashing, the water backwashing intensity is 2m 3 / min·m 2 , the gas backwash intensity is 7m 3 / min·m 2 , backwash lasted 20min;

[0031] (2) Filter the water from step (1) through the ultrafiltration membrane module. The ultrafiltration membrane system adopts a tubular inorganic ceramic memb...

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Abstract

The invention discloses a geothermal water purification treatment technology, which comprises the following technological steps: (1) introducing geothermal water into a geothermal water purification system, wherein the geothermal water firstly enters a filter, the upper layer in the filter is provided with activated carbon, the middle layer in the filter is provided with natural manganese sand, and the bottom layer in the filter is a mixture of cerous chloride and chitosan; (2) filtering water filtered in step (1) via an ultrafiltration membrane assembly; (3) causing water filtered by the ultrafiltration membrane system in step (2) to enter a reverse osmosis system, wherein the form of a reverse osmosis membrane is a spiral-wound membrane. According to the geothermal water purification treatment technology provided by the invention, macromolecule organic matters, fungi, particulate matters, thermoplasma and impurities including the colloid of various types of silicon, ferrum and aluminum in water can be almost completely intercepted, in addition, the whole system is subjected to airtight operation, water can be prevented from being in contact with outside so as to prevent from introducing new pollution sources, the problem of the equipment corrosion of a heat supply network due to the entering of dissolved oxygen in water can be avoided, and the water quality of discharged water is stable and reliable.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a geothermal water purification process. Background technique [0002] Geothermal water refers to groundwater whose temperature is significantly higher than the local average annual temperature, or higher than the surrounding rock temperature at the observation depth. Geothermal water is a precious natural resource. It can not only provide non-polluting heat energy to human beings, but also can be exploited and utilized as water supply source or mineral resources, which is of great significance to the development of national economy. Geothermal water resources have various and increasingly widespread uses. [0003] In the prior art, geothermal water is mainly used in the following two aspects: the use of geothermal power generation and urban centralized heating with geothermal water as a heat source. Compared with other energy sources, geothermal water heating has the ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02C02F103/02C02F101/30
Inventor 刘家容
Owner 江苏汉威换热科技有限公司
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