Environmental control for biological nutrient removal in water/w

Details Environmental control for biological nutrient removal in water/w Environmental control for biological nutrient removal in water/w

1997-03-31

1998-03-31

Wyse, Thomas G.

Liquid purification or separation

Processes

Treatment by living organism

210614, 210622, 210903, 210906, 210 961, 2101951, 210202, 210252, C02F 330

Patent

active

057334560

ABSTRACT:
Control of a water/wastewater treatment system is effected by sensing the oxidation reduction potential (ORP) at various parts of the system and using neuro-adaptive process control techniques to make adjustments when necessary based on the ORP values. Internal nitrate recycling, sludge return, organic substrate addition and/or aeration can be adjusted to achieve the desired environmental conditions. In the event that phosphorus removal is necessary, the system can be used to assure proper detention time needed for biological phosphorus uptake.

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patent: 5407578 (1995-04-01), Nathwani
patent: 5518618 (1996-05-01), Mulder et al.
patent: 5545326 (1996-08-01), Petering

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