Hydraulic and earth engineering – Soil remediation – In situ contaminant removal or stabilization
Patent
1989-02-21
1990-05-22
Massie, IV, Jerome W.
Hydraulic and earth engineering
Soil remediation
In situ contaminant removal or stabilization
405303, 404 92, B09B 300
Patent
active
049272934
ABSTRACT:
A remediating apparatus has a conveyor which moves contaminated material, a main hopper which holds a load of contaminated material and dispenses the material onto the conveyor at a receiving location, and an auxiliary hopper adjacent the main hopper which holds a load of an absorbent material and dispenses the material onto the contaminated material as the material is moved toward a transfer location. The apparatus also has an oxidizing material applicator and an aerator associated with an elongated mixing chamber. Also, a mixing and conveying auger rotatably mounted in the mixing chamber concurrently mixes the contaminated and absorbent material received in the mixing chamber at the transfer location and transports them from the transfer location to a deposit location. Spray nozzles of the applicator connected in communication with the mixing chamber spray pressurized oxidizing material on the mixture of contaminated and absorbent materials. Air nozzles of the aerator connected in communication with the mixing chamber inject air under pressure in the mixture of contaminated, absorbent and oxidizing materials to aerate the materials concurrently as the oxidizing material is sprayed thereon and the contaminated, absorbent and oxidizing materials are being mixed to produce a reaction therebetween and form reaction by-products which are more environmentally acceptable than the contaminated material for discharge at the deposit location.
REFERENCES:
patent: 1500437 (1924-07-01), Burton
patent: 3732023 (1973-05-01), Rank et al.
patent: 4027428 (1977-06-01), Hillel
patent: 4272212 (1981-06-01), Bauer, Jr. et al.
patent: 4655916 (1987-04-01), Schlesiger
Jacobs Marvin E.
Massie IV Jerome W.
Smith Matthew
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