Electrodesalination water injection
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I would like to ask fellow sailors: Can treated wastewater be used for desalination water injection? The parameters of this wastewater are as follows: COD of 40, conductivity of 1500, and chloride concentration of 300. What is the reason for this?
We use the purified water obtained through acidic stripping as the water for electrodialysis desalination. However, there is a problem: the wastewater is affected by the acidic stripping process, which can lead to excessive levels of pollutants in it.
It is difficult to control the quality of the treated wastewater, aspects such as its electrical conductivity and pH value, as these factors affect the efficiency of electrodialysis. An increase in pH value leads to the formation of emulsions, which not only reduces the desalination efficiency but also causes the desalinated water to contain oil. Changes in electrical conductivity influence the electric field within the electrodialysis process. Additionally, the water used for injection should not contain high levels of salts, excessive ammonia compounds, or alkaline substances. If these parameters can be properly controlled, treated wastewater can still be used