Wells – Processes – With indicating – testing – measuring or locating
Patent
1990-06-18
1992-03-31
Novosad, Stephen J.
Wells
Processes
With indicating, testing, measuring or locating
166 53, 166 64, 166 66, 166 664, 166 68, 166370, 73311, E21B 4300, E21B 4312, F04B 4904, F04B 4906
Patent
active
050999206
ABSTRACT:
A groundwater pollutant recovery system using the cone of depression approach, in which a sensing probe having liquid level sensors responsive to both water and pollutant levels and having attached to it the pollutant intake is deployed in a recovery well above the submerged water and pollutant pumps. The pollutant intake on the sensing probe is attached to the pollutant pump by an extendable hose so that the sensing probe may be raised and lowered in response to changing hydraulic conditions in the well, without the necessity of changing the water or pollutant pump positions. The recovery sequence is controlled by a microprocessor under the control of a program responsive to the liquid levels indicated by the sensors in the sensing probe.
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Hurst John F.
Warburton James G.
Novosad Stephen J.
Weinberger Laurence
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