Method and system for seeding with mature floc to accelerate aggregation in a water treatment process
AssigneePalo Alto Research Center Incorporated
InventorsMeng H. Lean, Armin R. Volkel, Ashutosh Kole, Jeonggi Seo
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Abstract
A system and method that uses mature floc as seed particles to promote aggregation in a water treatment process is provided. The seed particles do not need to be recovered as they separate out with the waste steam after a spiral separation. One implementation is to prepare the mature floc off-line and inject periodically into the buffer tank, as needed. Another implementation is to tap into the more mature floc downstream and feedback, as needed, to the buffer tank.
Claims17
A system for treatment of water, the system comprising:
- an inlet operative to receive source water having particles therein;
- a mixer operative to mix the source water with coagulant and alkalinity material;
- a buffer tank operative to receive an output of the mixer and receive mature floc, wherein the mature floc is operative to promote aggregation of particles in the source water;
- a spiral separator operative to segregate contents of the buffer tank into effluent and waste water having aggregated particles therein;
- and,
- an outlet operative to provide a first path for the effluent and a second path for the waste water having aggregated particles.
A method for treatment of water the method comprising:
- receiving source water having particles therein;
- adding alkalinity to set water pH;
- mixing the source water with coagulant material;
- injecting mature floc into the mixture of the source water and the coagulant material, the mature floc promoting aggregation of the particles in the source water;
- and,
- separating the source water into effluent and waste water having aggregated particles.
A system for treatment of water, the system comprising:
- means for receiving source water having particles therein;
- means for mixing the source water with coagulant material;
- means for injecting mature floc into the mixture of the source water and the coagulant material, the mature floc promoting aggregation of the particles in the source water;
- and,
- means for separating the source water into effluent and waste water having aggregated particles.
Dependencies are inferred from the claim text.