However A. pyrophilus can even grow anaerobically by reducing nitrogen instead of oxygen.

"Water conservation is another very cost-effective way of not only reducing nitrogen, but also bringing down the burden on sewage treatment plants."

It could still be averted but only 'if action to reduce nitrogen leaching at source is taken immediately'.

In a review of 19 surface flow wetlands it was found that nearly all reduced total nitrogen.

Reducing nitrogen in human waste - at least using traditional technologies - requires large holding tanks.

But upgrading the four plants to reduce nitrogen entering the Sound could place a heavy burden on taxpayers.

The coalition said although it supported reducing nitrogen the government proposal was not legal.

But the coalition said that was too little to meet the 58.5 percent target goal, even if all the money was spent to reduce nitrogen.

Previously tanneries in Europe have only been able to reduce nitrogen in the water by up to a maximum of 30%.

Local and state governments have committed billions of dollars, for example, to reduce nitrogen from sewage treatment plants.