Seeking help for high-salt wastewater
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The inlet COD is 2000 and the ammonia nitrogen level is 60; the outlet COD is 300 and the ammonia nitrogen level is 110. The treatment of ammonia nitrogen does not meet the required standards. The chloride ion concentration is around 10,000 mg/l; please suggest a solution.
Extend the aeration time to allow for more reaction in the aerobic stage. If that doesn’t work, add an ammonia nitrogen remover later.
First, find out whether there are clear limits set for chloride ion emissions in your emission standards; if no such limits exist, dilution along with conventional biochemical treatment can be employed. If the emission standards specify clear criteria and requirements for chloride ion emissions, and dilution is not sufficient to meet them, it is recommended to use a high-pressure flat membrane concentration system in combination with multi-effect evaporation and MVR evaporation. High-pressure flat membrane first reduces the volume of wastewater, decreases the amount of water that evaporates, and lowers operating costs. Evaporation can be considered the only effective and reliable method for the final separation of high-salt wastewater; other methods merely involve concentration and cannot achieve complete separation.
How much water is there? It seems that the nitrifying bacteria have not grown.
Evaporation concentration manufacturers are at your service at any time
The chloride level is a bit high, which has an inhibitory effect on nitrifying bacteria; it is recommended to properly acclimate the bacterial strains in order to develop nitrifying bacteria that can adapt to high salt levels
With a high chloride ion concentration, direct biochemical treatment is difficult. For large volumes of water, it is recommended to use membrane concentration first, which can increase the chlorine content in the effluent to 50,000 mg/l and reduce the volume of water to 1/5 (DTRO membranes achieve even higher levels but are also more expensive). Once the water has been purified through membranes, it can then be subjected to biochemical treatment. It is advisable to analyze the components of COD to consider their impact on the membranes; for further discussion, please contact 136 5095 7236
Zero-discharge solution for high-salt and high-COD wastewater; feel free to contact QQ963973833 for discussions
This type of water quality can be used directly as circulating water, and it also makes it possible to achieve zero discharge of circulating water.
It is possible not to emit any waste water, and to use it as makeup water for circulating water; we have proven solutions for this purpose. Phone number: 13969381212