Procedure and installation for conditioning and subsequent dewat

Details Procedure and installation for conditioning and subsequent dewat Procedure and installation for conditioning and subsequent dewat

1991-09-20

1994-11-22

McCarthy, Neil

Liquid purification or separation

With means to add treating material

Spaced along flow path

210752, C02F 152

Patent

active

053666224

ABSTRACT:
When adding flocculant to a sludge suspension, which will be dewatered, within a pressure pipe between a feed pump and a dewatering equipment, the distance between the dosing point and the inlet of the dewatering equipment will be modified during operation, e.g. by displacing a lance carrying a dosing head within the sludge pipe or by selectively operating a number of dosing points being positioned at different distances to the dewatering equipment. In this way it is possible to adjust most optimally the retention time being available for the formation and consolidation of floc particles with regard to the present operation conditions and the type of added flocculant.

REFERENCES:
patent: 3666663 (1972-05-01), Walker
patent: 4206052 (1980-06-01), Mandt
patent: 4539120 (1985-09-01), Robinson
patent: 4663055 (1987-05-01), Long et al.
patent: 4675116 (1987-06-01), Hoyland
patent: 5093008 (1992-03-01), Clifford, III

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