My pleasure bro, remember you can separate heavy metals using petrol and oil traps, then truly if water not good, simply use electrolyze at 24 cents for 1000 gallons can be done for 99% pure water, only don’t forget to install wetlands structure to add natural minerals back in this effluent, for drinking, and everyone wins including environment. Keep on Smiling, if you ever need a plumber, just email me a photo so I can see it all.
Dylan, have a look at Petrol & Oil traps plus Grease traps I.S.O. codes for removing such waste from water, as you might be able to assist you with mercury separation it. Keep smiling if you ever need plumbing advise just email email@example.com All the Best.
If you are interested in TECH for purification of toxic effluent from gold mining let me know in I can assist you whilst it does restore a rivers own ecosystem being the riverbeds are cleaned out so fish breeding occurs again. NOT CHEAP either just overall no fresh water a huge issue, whilst you get precious metals returns plus H2 too. I even have TECH for $100,000 outlay sees 1 ton of food grown weekly based on waste becomes energy source.