公开(公告)号：US20170297937A1

公开(公告)日：2017-10-19

申请号：US15516250

申请日：2015-09-28

Applicant: XYLEM IP MANAGEMENT S.À R.L.

Inventor： Alexis De Kerchove ,  Trevor Ghylin

IPC: C02F3/30 ,  C02F3/12 ,  C02F3/00 ,  C02F1/52 ,  C02F103/00 ,  C02F101/10

CPC classification number: C02F3/308 ,  C02F1/5236 ,  C02F1/5245 ,  C02F3/006 ,  C02F3/1215 ,  C02F3/1263 ,  C02F2101/105 ,  C02F2103/001 ,  C02F2103/002 ,  C02F2103/005 ,  C02F2209/001 ,  C02F2209/08 ,  C02F2209/16 ,  C02F2209/18 ,  Y02W10/15

Abstract: A method for managing a wastewater treatment process. The method includes at least the steps of measuring an amount of at least one nitrogen-containing substance in the influent wastewater (CN, influent), and determining an amount of phosphorous to be removed from the influent wastewater (CP, influent) based on the measured amount of at least one nitrogen-containing substance in the influent wastewater (CN, influent).

公开(公告)号：US20170297930A1

公开(公告)日：2017-10-19

申请号：US15516247

申请日：2015-09-28

Applicant: XYLEM IP MANAGEMENT S.À R.L.

Inventor： Alexis De Kerchove ,  Alan Merry

IPC: C02F1/52 ,  C02F3/12 ,  C02F103/00 ,  C02F101/10

CPC classification number: C02F1/5209 ,  C02F1/5236 ,  C02F1/5245 ,  C02F3/1215 ,  C02F3/1263 ,  C02F3/301 ,  C02F2101/105 ,  C02F2103/001 ,  C02F2103/002 ,  C02F2103/005 ,  C02F2209/08 ,  C02F2209/14 ,  C02F2209/16 ,  C02F2209/18 ,  C02F2209/40 ,  C02F2209/44 ,  Y02W10/15

Abstract: A method for treating wastewater by using a coagulant that aggregates a phosphorus-containing substance. The method includes executing a reaction phase having a biological treatment phase and a subsequent chemical treatment phase. The chemical treatment phase includes the first substep of mixing the wastewater while injecting a predetermined dose of the coagulant into the basin in order for the coagulant to contact and coagulate the phosphorus-containing substances. The injection of the dose of the binding compound into the basin is performed during a time period equal to or more than a time period required to accomplish two mixing turnovers of the wastewater and equal to or less than a time period required to accomplish seven mixing turnovers of the wastewater. The second substep includes mixing the wastewater in order to flocculate the coagulated substance.