Methods for polymer addition control for water treatment

Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C210S739000

Reexamination Certificate

active

06849190

ABSTRACT:
Systems and methods for polymer addition control for wastewater treatment. In a water treatment process where flocculating agents are used to promote solids aggregation, intrinsic physical properties of the liquid rich stream following separation may be continuously measured in order to control or optimize the amount of flocculating or treatment agent that is added to the process. These intrinsic physical properties may include, for example, the viscosity or the density. By continuously measuring an intrinsic physical property of the liquid rich stream, additional tracing compounds may not need to be added to the water treatment system. The treatment process may also include a holding tank, or a device that separates the entering water into two or more streams, such as a liquid stream and a biosolid stream.

REFERENCES:
patent: 4544489 (1985-10-01), Campbell et al.
patent: 4675116 (1987-06-01), Hoyland
patent: 5003814 (1991-04-01), Crawford et al.
patent: 5084186 (1992-01-01), Gilchrist
patent: 5183562 (1993-02-01), Totoki et al.
patent: 5382356 (1995-01-01), Thogho et al.
patent: 5620609 (1997-04-01), Field
patent: 5645799 (1997-07-01), Shah et al.
patent: 5902487 (1999-05-01), Pickering et al.
Dentel et al., “Laboratory and Full-Scale Studies of Liquid Stream Viscosity and Streaming Current for Characterization and Monitoring of Dewaterability”, (1995), pp. 2663-2672,Wat. Res.vol. 29, No. 12.
Papavasilopoulos et al., “On the Role of Aluminum Hydroxide in the Conditioning of an Alum Sludge”, (1998), pp. 33-40,Wat. Sci. Tech.vol. 28, No. 2.
Bache, et al., “Viscous Behavior of Sludge Centrate in Response to Polymer Conditioning”, (2000), pp. 354-358,Wat. Res.vol. 34, No. 1.
Abu-Orf et al., “Use of Liquid Stream Viscosity in Sludge Dewaterability Assessment: Laboratory and Full-scale Studies”, (Oct. 15-19, 1994), pp. 140-152, Water Enviroment Federation 67thAnnual Exhibition.
“Sludge Management Entering the 3rdMillenium”, Conference Proceeding, (Mar. 25-28, 2001) pp. 1-3, International Water Association.
Abu-Orf et al., “On-Line Monitoring of Polymer Feed Using Centrate Viscosity”, (Sep. 14, 2001), p. 529, Velvendi Water North American Tech. Center.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Methods for polymer addition control for water treatment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods for polymer addition control for water treatment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for polymer addition control for water treatment will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3462946

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.