公开(公告)号：US10407330B2

公开(公告)日：2019-09-10

申请号：US15730158

申请日：2017-10-11

Applicant: Xylem Water Solutions U.S.A., Inc.

Inventor： Trevor Wayne Ghylin ,  Sarah Olivia Elger ,  Daniel Sheldon

IPC: C02F3/30 ,  C02F3/28 ,  C02F3/12 ,  C02F3/00 ,  C02F11/12

Abstract: A process for biological nutrient removal including: receiving fluid having sludge in a basin through a sludge inlet; activating an aeration system based at least partially on a time of day; periodically measuring a potassium level of the fluid; determining a potassium rate of change based on the periodic measurements of potassium level; and deactivating the aeration system based at least partially on the determined potassium rate of change. A system for biological nutrient removal is also disclosed.

公开(公告)号：US20180118594A1

公开(公告)日：2018-05-03

申请号：US15730158

申请日：2017-10-11

Applicant: Xylem Water Solutions U.S.A., Inc.

Inventor： Trevor Wayne Ghylin ,  Sarah Olivia Elger ,  Daniel Sheldon

IPC: C02F3/30 ,  C02F3/12 ,  C02F3/28

CPC classification number: C02F3/308 ,  C02F3/006 ,  C02F3/1215 ,  C02F3/1263 ,  C02F3/28 ,  C02F3/301 ,  C02F11/12 ,  C02F2209/005 ,  C02F2209/006 ,  C02F2209/04 ,  C02F2209/05 ,  C02F2209/06 ,  C02F2209/07 ,  C02F2209/14 ,  C02F2209/18 ,  C02F2209/22 ,  Y02W10/15

Abstract: A process for biological nutrient removal including: receiving fluid having sludge in a basin through a sludge inlet; activating an aeration system based at least partially on a time of day; periodically measuring a potassium level of the fluid; determining a potassium rate of change based on the periodic measurements of potassium level; and deactivating the aeration system based at least partially on the determined potassium rate of change. A system for biological nutrient removal is also disclosed.