Treatment of high-salt and high-acid wastewater
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There are two types of wastewater: one contains 14% sodium chloride, a pH of 1, aniline sulfonates, and a COD value of 58,000; the other has 30% sulfuric acid, aniline sulfonates, a COD value of 62,000, as well as small amounts of sodium sulfate and sodium chloride. How should these two types of water be treated? Headache – the boss doesn’t want to invest any money
:L:L:L:L: What to do if no money is invested?
Water volume, water volume, water volume. High salt content can be treated using multi-effect evaporation or MVR. As for what to do with NaCl, it depends on the situation: it can be sold to others or paid to someone else to handle it as solid waste. The liquid obtained through evaporation can be biodegraded or chemically treated (depending on the amount of water). Recycling 30% sulfuric acid should be considered.
You can’t play around with birds without investing money; even if relationships are strong, money is still needed to get things moving. Besides, with such strict regulations these days, your boss must be considering options like higher efficiency or MVR. Come to me, haha
It needs to be recycled. Otherwise, if the water volume is high, we’ll have to close it
Multi-effect or MVR; sulfuric acid is used to produce ammonium sulfate, which is then sold
Only through multi-effect evaporation can sodium sulfate still be sold for money!
Only through multi-effect evaporation can sodium sulfate still be sold for money!
Be careful with COD and sulfuric acid, be careful with COD and sulfuric acid, be careful with COD and sulfuric acid
Dear poster, from the data you provided it is clear that your two types of wastewater are characterized by high salinity and high COD levels. Therefore, in most cases, pre-treatment is necessary before using multi-effect evaporation or MVR systems; the COD level in the water fed into these systems should be below 500. Clearly, such wastewater cannot be fed directly into these systems. If you are interested, you might consider our company’s proprietary evaporation equipment designed for handling wastewater with high COD and high salinity levels. If you’d like, please leave your contact information or email address so that I can send you some relevant materials for your reference
We’re not allowed to use liquid ammonia here anymore; liquid ammonia for cooling is also prohibited