For the production of Omnite from Lithomnic Water you need more Omnite than you get at the end. Even if I process Petromnic Waste Water with, in the end, an estimated 10 omnites remain. A little less for the effort.
At the moment only the production of Omnite from Omnic Waste is worthwhile.
The abundance of Sulfuric Wast Water is also unpleasant. A use for it would be great.