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Thanks again Bmir, you're my new hero. No this isn't a CCS project but my predecessor was just as equally incompetent! I'm still fairly new to water treatment so I'm still learning new stuff everyday, but I still had a better grasp on what was going on here than he ever did... I inherited this...

Thank you so much Bmir! Update: Our metals test came back from our influent/mid point samples. apparently we have a massive amount of Mg, Mn, and Fe (51000 ppb, 50 ppb, 1000 ppb respectively). Luckily our permit does not require us to treat those metals (were dealing with groundwater), but you...

Thanks a million Bmir. We do actually have black material floating around inside of our sediment tanks so this seems to exactly whats going on. Not sure what a CCS project means... so probably not lol. So to sum up and to just wrap my head around this (let me know if I get something wrong...

Thank you all for the responses ill try to address each question: Bmir: If it is ferrous sulfides, would it make sense that the filters would clog (catch more) faster? Is the iron also being oxidized? (turning into it's own colloid?). And sorry for the "Reduction" mistake, I made that flowchart...

This is a continuous flow treatment plant. As far as the where the source of the groundwater is coming from, that I cant say specifically. Our company is sub contracted for their water treatment purposes, so they choose when and what wells to drain, we just clean it. They did start draining out...

Thank you for the response! We use multi media filters ( anrthacite / Fine - course garnet / Crushed rock). The backwash color used to be a standard milky white (after the Hydrogen sulfide was oxidized). But since the in fluent water has changed to black the backwash has taken more of a "muddy"...

Thank you for the response Bmir. Yes one of the main things we treat in the plant is hydrogen sulfide (with H2O2 oxidation / filtration). The concentration of the in-fluent hydrogen sulfide hasn't changed (roughly 8 ppm) despite the color completely changing. We also test the in-fluent of...

Hello, I currently work at a water treatment facility that treats groundwater. Recently the in-fluent water we've been receiving is almost pure black. My first thought was manganese, and am having it tested to see if Mn is present. Here's the part that confuses me: If I leave the water alone...

Thanks bmir, headache is an understatement... I was under the impression that the fully oxidized hydrogen sulfides turns into elemental sulfur (the milky white color), or is fully oxidized H2S a sulfate? I was doing alot of reading through previous posts and I'm thinking I may have a serious...

I completely agree with you with the "non-optimalness" of the plant, I more or less inherited this plant (and it's problems). There's two sediment tanks in series, both with the standard underflow/over flow weirs. The bridge between the two tanks has the water fall a few feet into sediment...

I apologize if this has been discussed already. I was sifting through the posts for a while, and I unable to find anything similar to my problem. We have two sediment tanks both have large volumes (30,000 gal together), Depending on the in fluent flow (which varies), the residence time in the...

Hi, I’m fairly new to the waste water industry and was hoping to get some input on one of the anomalies I’m facing at my current treatment plant. We treat ground water with hydrogen sulfide present in it. We use hydrogen peroxide to oxidize the H2S. The H2O2 is injected prior to the sediment...