RE: acid cleaning

[Randall Young <ryoung@NAVCOMTECH.COM>]

>  When I was working in chemical recycling the sewer district
> where we were located (mostly residential and offices with some
> light industrial) had the opposite problem: the effluent was too
> high a pH (too much base, not enough acid).  We were neutralizing
> sulfuric acid.

That's what I've heard, that the pH of residential sewage is usually too
high.  Not sure if that's still true now that tri-sodium phosphate has been
outlawed as a laundry detergent.  Decaying organic matter also usually goes
basic (not always).  For example, "diaper pail smell" is mostly ammonia ...

Randall

///  unsubscribe/change address requests to majordomo@autox.team.net  or try
///  http://www.team.net/mailman/listinfo
///  Archives at http://www.team.net/archive/shop-talk