Phosphorus recovery method and phosphorus recovery system

Details Phosphorus recovery method and phosphorus recovery system Phosphorus recovery method and phosphorus recovery system

2011-03-08

2011-03-08

Langel, Wayne (Department: 1736)

Liquid purification or separation

Processes

Ion exchange or selective sorption

C023S300000, C210S663000, C210S667000, C210S906000

Reexamination Certificate

active

07901582

ABSTRACT:
A phosphorus recovery method and a phosphorus recovery system which can make equipment size small, and can be added easily also to an existing wastewater treatment facility, and can recover phosphorus by low cost, are provided. A phosphorus compound adsorption material includes a nitrogen containing compound which has an amino group at an end of molecular structure, a carrier supporting the nitrogen containing compound, and zinc ion or iron ion fixed to the nitrogen containing compound. After passing water to be treated containing phosphorus to an adsorption tower filled up with this phosphorus compound adsorption material to make phosphorus stick to the phosphorus compound adsorption material, a drug solution for desorption is supplied to the adsorption tower, and phosphorus is desorbed in liquid and is recovered.

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patent: 2007-117948 (2007-05-01), None

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