Zero-discharge treatment method and system for mine strong brine

A treatment system and treatment method technology are applied in the field of mine concentrated brine zero discharge treatment method and system field, which can solve the problems of high operating cost, low quality, difficult treatment of high-salt waste water, etc., so as to improve the water recovery rate and protect the environment. Effect

Pending Publication Date: 2021-05-07
深圳能源资源综合开发有限公司
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AI Technical Summary

Benefits of technology

This technology can be used for purifying mineral waters from polluted or contaminating sources like coal mines through various methods such as filtering out impurities (sulfates) beforehand, reversely squeezed seawater into clear liquid form, then subject it to different types of treatment processes - including membranes made up mostly of polymers called cellulose acetate films). These treatments help remove harmful substances found on these surfaces while also making them easier to clean after use without causing damage during subsequent uses. Overall, this process helps recover valuable materials from rainwater runoff containing high levels of dissolved solids and other chemical compounds.

Problems solved by technology

This patents discusses the use of techniques like precipitation/coagulation settling filter systems (PFS) that may help clean up harmful substances found in sea waters before disposal into sewages without causing environmental concerns. Current methods require expensive equipment and result in poorly understood residues due to their complex composition.

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  • Zero-discharge treatment method and system for mine strong brine
  • Zero-discharge treatment method and system for mine strong brine

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Embodiment Construction

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0033] Such as figure 1 As shown, the mine concentrated brine zero discharge treatment method of an embodiment of the present invention comprises the following steps:

[0034] S1. Firstly, the mine concentrated brine is subjected to primary filtration and impurity removal treatment, and then primary reverse osmosis concentration is performed to obtain primary reverse osmosis product water and primary reverse osmosis concentrated water.

[0035] Among them, the mine concentrated brine is pre-stored in the regulating tank, and then the mine concentrated brine in the regulating tank is output to perform primary filtration and impurity removal treatment to remove suspended solids, oil and other substances.

[0036] The concen

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Abstract

The invention discloses a zero-discharge treatment method and system for mine strong brine. The zero-discharge treatment method for the mine strong brine comprises the following steps: S1, carrying out primary filtration and impurity removal treatment on the mine strong brine, and then carrying out primary reverse osmosis concentration; S2, performing chemical softening treatment on the primary reverse osmosis concentrated water; S3, carrying out secondary filtration and impurity removal treatment on the softened produced water, and then carrying out secondary reverse osmosis concentration; S4, carrying out microfiltration treatment on the secondary reverse osmosis concentrated water; S5, carrying out evaporation and concentration treatment on the microfiltration produced water; S6, performing sodium sulfate crystallization treatment on the concentrated solution, and sequentially thickening, centrifuging and drying the nitre slurry to obtain sodium sulfate; and S7, carrying out sodium chloride crystallization treatment on the saturated mother liquor subjected to sodium sulfate crystallization treatment in the step S6, and sequentially thickening, centrifuging and drying salt slurry to obtain sodium chloride. According to the invention, the water recovery rate of the production wastewater is greatly improved, the environment is protected, the crystalline salt is recycled, and the zero emission target of the mine strong brine is really achieved.

Description

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Claims

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Application Information

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Owner 深圳能源资源综合开发有限公司
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