Process for recovery of nutrients from wastewater

Details Process for recovery of nutrients from wastewater Process for recovery of nutrients from wastewater

2006-11-14

2006-11-14

Hruskoci, Peter A. (Department: 1724)

Liquid purification or separation

Processes

Treating by enzyme

C071S012000, C071S021000, C071S042000, C210S631000, C210S710000, C210S718000, C210S724000, C210S726000, C210S903000, C210S906000

Reexamination Certificate

active

07135116

ABSTRACT:
The present invention relates to a process for treating a wastewater comprising an ammonium ion species and a phosphorus ion species. The process comprises the steps of: (i) treating the effluent in a first stage of the process to convert the phosphorus to a phosphorus-containing salt; (ii) treating the wastewater in a second stage of the process to convert the ammonium ion species to gaseous ammonia; (iii) removing the struvite and/or other phosphorous containing salts from the effluent; and (iv) removing the gaseous ammonia from the wastewater.

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patent: 7014768 (2006-03-01), Li et al.

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