Issue of dilute acid reuse in alkylating waste acid regeneration units
Thread Content
Dear colleagues in the industry, have you ever tried to reuse the dilute acid produced by acid waste treatment systems in order to reduce the burden on wastewater treatment? I’ve heard that some companies in the mineral acid sector do this, but I’m not sure if it will have an impact on the quality of their products. I would appreciate any insights from those with more experience!
Most of it has been neutralized and removed; it is rarely reused. The original poster could explain in detail the recycling process
The spent acid regeneration and absorption section also requires fresh water; theoretically, this dilute acid, after having its mechanical impurities removed, should be usable, right?
Acids are substances that can be used to manufacture drugs. According to the poster’s reasoning, the following issues should arise: 1. The recycling equipment, namely the devices used to remove mechanical impurities, should be made of special materials, which are expensive; moreover, they require significant energy consumption and regular maintenance of spare parts； 2. Even if it is recycled, the quantity is small, and there may not be a market for it ； 3. There is a market, but transportation is also a problem; it’s easy to use for drug production
My original idea was to add this dilute acid to the dry absorption system in order to reduce the burden on wastewater treatment. To treat this wastewater, either liquid alkali or lime is required, and both are costly. If this approach can be utilized, it will not only help save on wastewater treatment costs but also reduce the need for fresh water (the amount used is minimal, so it can be disregarded)
About 50% of it can be used to produce magnesium sulfate; we have turned 2-ethylanthraquinone sulfate into magnesium sulfate
A few days ago, I conducted an experiment on flocculating alkylated waste sulfuric acid, and the results were very good. If you’re interested, call me and I’ll send you a video to show you. 13583319161
By recovering this waste acid using the wet acid production method, the problem of dilute acid no longer exists.