Mercury removal method and apparatus

Details Mercury removal method and apparatus Mercury removal method and apparatus

1996-02-02

1998-08-18

Lewis, Ralph A.

Dentistry

Apparatus

Having suction orifice

604319, 210295, A61C 1704

Patent

active

057951594

ABSTRACT:
A method and apparatus to treat dental waste water has been developed in ch a slurry of water and solid waste particles, including mercury-containing amalgam and soluble and suspended mercury and other heavy metals, is collected under vacuum into an main chamber. The particulate-containing liquid slurry settles into a main chamber and into the central collection well of a removable filter while the vacuumed air exits the main chamber and continues toward a vacuum source. The liquid slurry is drawn by vacuum through a removable filter making the effluent substantially free of mercury-containing particulate material. The resulting filtered effluent is ready for further treatment of soluble and suspended mercury, if necessary, before being conveyed into a public sewer system. When a certain level of particulate material has been collected, the removable filter can be sealed and the particulate contents disposed or reclaimed.

REFERENCES:
patent: 4385891 (1983-05-01), Ligotti
patent: 5055198 (1991-10-01), Shettigar
patent: 5087250 (1992-02-01), Lichte et al.
patent: 5354468 (1994-10-01), Richards

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