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Sewage treatment


>Date: 	Thu, 09 Oct 1997 18:20:03 -0600
>From: Marc Greidanus <greimj at uleth_ca>
>To: Aquatic-Plants at actwin_com
>Subject: phosphate pollution"s effects on the environment(statistics if
>Hello. I'm doing a class debate on the necessity of tertiary treatment
>in sewage treatment plants.  Is it worth the cost?(and so on)  It's my
>groups job to represent the environmentalist point of view.  Do you have
>any arguments or good statistics I could use.  If not that's okay but if
>so please answer very soon.