Recovery system and recovery method for potassium perchlorate and sodium chloride crystalline salt in wastewater

A technology of potassium perchlorate and recovery system, which is applied in the direction of perchlorate, perchloric acid, chemical instruments and methods, etc., and can solve the problem of the limited length of the overall length of the scalable part
CN110759568AActive Publication Date: 2020-02-07GUANGDONG WENYANG ENVIRONMENTAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
GUANGDONG WENYANG ENVIRONMENTAL TECH CO LTD
Publication Date
2020-02-07

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Abstract

The invention discloses a recovery system and recovery method for potassium perchlorate and sodium chloride crystalline salts in wastewater. The recovery system comprises a freezing device, an MVR evaporative crystallization device, an MVR thick centrifugal device, a freezing precipitation device, a chlorate metathesis device and an electrolysis device, wherein the freezing device communicates with the MVR evaporative crystallization device; the MVR thick centrifugal device communicates with the MVR evaporative crystallization device; the freezing precipitation device communicates with the MVRthick centrifugal device; the chlorate metathesis device communicates with the freezing precipitation device; and the electrolysis device communicates with the chlorate metathesis device. According to the recovery system for potassium perchlorate and sodium chloride crystalline salts in the wastewater disclosed by the invention, high-purity solids and wastewater which can be directly discharged can be obtained.
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Description

technical field

[0001] The invention relates to the technical field of building design, in particular to a recovery system and recovery method for potassium perchlorate and sodium chloride crystalline salt in waste water. Background technique

[0002] According to the requirements of the "Code for Design of Building Fire Protection", the movable canopy whose outer edge distance exceeds 5m from the outer wall of the building is currently used for the canopy where fire rescue is required. At present, the column-free retractable canopy on the market is mostly used above the ordinary entrance gate or fire lane. One end of the canopy is fixed on the main body of the building and cantilevered outward. In order to meet the requirements of fire rescue, the non-retractable fixed part of the canopy cannot exceed 4m, the overall length of the retractable part is also limited by the length of the fixed part, making it difficult for the overall length of the canopy to exceed 8m. limited...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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