NEWS CENTER

14

2024

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10

New reform of flame retardant wastewater treatment: resource recovery and cost reduction by homogeneous membrane electrodialysis

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In the complex industrial process of flame retardant production, it is inevitable to produce low concentration sodium bromide wastewater. In the face of this situation, the use of homogeneous membrane electrodialysis device has become an efficient solution. Thanks to the principle of its sophisticated membrane separation technology, the unit separates sodium bromide from other components in the wastewater and successfully gradually concentrates the sodium bromide content from the initial 1.5% to more than 15%.


When the wastewater reaches this desired concentration level, it is introduced into the evaporation unit in an orderly manner. In the evaporation unit, through a series of scientific physical processes, sodium bromide can be efficiently recovered, and then can be re-put into the market for sale, bringing additional economic benefits to the enterprise. At the same time, the salt content of the fresh water produced by the homogeneous membrane electrodialysis unit is reduced to 0.1%. This highly pure fresh water, fully compliant with process recycling standards, can be returned directly to the production process without hindrance to play its role again.
Such a process model undoubtedly has multiple advantages. It first on the economic level, through the recovery of sodium bromide sales and fresh water recycling, significantly reduce the cost of wastewater treatment, saving considerable money for enterprises. Secondly, from the perspective of environmental protection, it avoids the pollution caused by the direct discharge of waste water to the environment, and realizes the maximum utilization of resources, which is in line with the concept of sustainable development. This process innovation, which perfectly combines wastewater treatment and resource recovery, has opened up a green and efficient new path for the development of the flame retardant production industry, and has strongly promoted the sustainable progress of the entire industry.

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