公开(公告)号：US3620371A

公开(公告)日：1971-11-16

申请号：US3620371D

申请日：1969-12-01

Applicant: AQUANOX INC

Inventor： VALDESPINO JOE M

IPC: B01D29/00 ,  B01D29/01 ,  B01D37/00 ,  C02F3/00 ,  C02F3/12 ,  B01D29/38

CPC classification number: C02F3/1242 ,  B01D29/01 ,  B01D29/114 ,  B01D29/66 ,  B01D35/153 ,  B01D37/00 ,  B01D2201/208 ,  C02F3/006 ,  Y02W10/15

Abstract: An aerobic waste material treatment system includes a hydraulic comminutor-reaction tank and a vacuum aeration tank connected by a siphon so that comminuted solids in liquid are siphoned into the vacuum tank. A recirculating pump and fluid connection are positioned between the vacuum tank and hydraulic comminutor to recirculate the mixed liquor from the vacuum tank and reaerate it by an aspirator in the recirculating line while, at the same time, discharging tangentially into the comminutor to aid in centrifugal movement for comminuting purposes. A venturi in the recirculating pump discharge line aspirates from the vacuum tank to draw the vacuum within the vacuum tank. The air for anchor in the vacuum tank is admitted from atmosphere under control of a regulating valve. An automatic back flushing filter is connected to the effluent outlet of the vacuum tank. The filter is periodically back flushed by pulsing air from the outlet side of the filter to flush accumulated material on the filter screen back into the vacuum tank. The vacuum tank may be blown down through a blow down valve in the discharge side of the recirculating pump. Automatic batch chlorination and effluent ejection units are connected to the outlet side of the automatic back flushing filter.