A method and device for treating acidic wastewater after bromine extraction using waste salt mud
A technology for acidic wastewater and salt mud, which is applied in water/sludge/sewage treatment, water/sewage treatment, general water supply conservation, etc. It can solve the problem that the follow-up process cannot meet the standard discharge, the system process is short, the reaction efficiency, and the acid wastewater quality Low turbidity and other problems, to achieve the effect of low processing cost, increased system stability, and improved utilization efficiency
Active Publication Date: 2022-06-03
SHANDONG HAIHUA GRP CO LTD +1
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Problems solved by technology
[0009] The purpose of the present invention is to provide a method and device for treating acid wastewater after bromine extraction by using waste salt mud. Environment, environmental protection problems that cannot be normally received by the follow-up process or cannot be discharged up to the standard. At the same time, the comprehensive utilization of waste salt mud generated in the production process of salt chemical enterprises such as soda ash, chlor-alkali and vacuum salt production has been realized, reducing waste discharge, and achieving waste The purpose of waste production, and the quality of acidic wastewater after bromine extraction after purification is improved, and the turbidity is very low
Method used
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Embodiment 1
[0048]
[0056] Through the above steps, the pH value of the waste water after the bromine extraction was raised to more than 6, and the water turbidity was less than 2NTU.
Embodiment 2
[0059]
[0067] Through the above steps, the pH value of the waste water after the bromine extraction was raised to more than 6, and the water turbidity was less than 1.5NTU.
Embodiment 3
[0070]
[0078] Through the above steps, the pH value of the waste water after the bromine extraction is more than 6, and the water turbidity is less than 2NTU.
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Abstract
The invention discloses a method and device for treating acid waste water after bromine extraction by using waste salt mud. Through the fine prefabrication of waste salt mud, especially in combination with the process characteristics of dissolved air flotation, the components of different forms of salt mud are used differently. , improve the utilization efficiency of salt mud, and give full play to the technical advantages of dissolved air flotation in treating wastewater after bromine extraction. Compared with the existing technology, the running time of the wastewater treatment system is greatly shortened, the volume of the device is significantly reduced, and the efficiency is greatly improved. Improvement, technical parameter operation and debugging cycle shortened, system stability greatly increased, the quality of purified acidic wastewater after bromine extraction was improved, acid corrosion was significantly reduced, and it would not cause acidic pollution to the surrounding environment, realizing waste-to-waste treatment The method is low in cost, and is a simple, efficient, and low-cost method for treating wastewater after bromine extraction, and has good environmental protection benefits.
Description
A kind of method and device for treating acid wastewater after bromine extraction with waste salt sludge technical field The present invention relates to a kind of method and device that utilize waste salt sludge to process the acid waste water after bromine extraction, specifically a kind of mining A process method and a device for neutralizing the acid wastewater after bromine extraction with the waste salt sludge produced in the refining process of sodium chloride brine, belonging to wastewater processing and environmental protection. Background technique [0002] Bromine is an important basic chemical, and seawater and brine are important raw materials for bromine extraction. Currently the most widely used bromine extraction The most widely used is the air-blown acid absorption method, which uses chlorine gas to replace elemental bromine from seawater or brine, and then uses air to replace elemental bromine. Air blows out. This method produces a large amount of a...
Claims
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IPC IPC(8): C02F9/04C02F1/24
CPCC02F9/00C02F1/24C02F1/66C02F1/5236C02F1/56Y02A20/131
Inventor 刘建路王宗瑞王健朱荣振赵林汪伶俐吴秀丽何金梁张涛袁敬明
Owner SHANDONG HAIHUA GRP CO LTD