P

Inventor

HONG SUN-NAN

US12 patents
⚠️ This page may combine multiple inventors who share the name “HONG SUN-NAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AIR PROD & CHEM

7 patents
US4488968ADec 18, 1984

Removal of phosphates and BOD from wastewaters

AIR PROD & CHEM48 citations92
US4488967ADec 18, 1984

Treatment of wastewater containing phosphorus compounds

AIR PROD & CHEM37 citations90
US4650585AMar 17, 1987

Method for minimizing diurnal swing in phosphorus content of effluent streams from wastewater treating plants

AIR PROD & CHEM21 citations81
US4552663ANov 12, 1985

Process for the removal of ammoniacal nitrogen in the BOD sorption zone of a wastewater treatment plant

AIR PROD & CHEM21 citations81
US4087361AMay 2, 1978

Activated sludge system with staggered partition basin

AIR PROD & CHEM9 citations71
US4081368AMar 28, 1978

Activated sludge system with staggered partition basin

AIR PROD & CHEM8 citations71
US4556491ADec 3, 1985

Avoidance of rising sludge in biological wastewater treatment clarifiers

AIR PROD & CHEM10 citations68

KRUGER INC I

2 patents
US7147778B1Dec 12, 2006

Method and system for nitrifying and denitrifying wastewater

KRUGER INC I110 citations94
US7459083B1Dec 2, 2008

Method for controlling fouling of a membrane filter

KRUGER INC I15 citations81

UNITED STATES FILTER CORP

1 patent
US7001516B1Feb 21, 2006

Process for removing phosphorus from wastewater utilizing a triple basin wastewater treatment system

UNITED STATES FILTER CORP16 citations90

KRUGER INC

1 patent
US6685834B1Feb 3, 2004

Method for conditioning and dewatering thermophilic aerobically digested biosolids

KRUGER INC25 citations88

KRUEGER INC

1 patent
US5650069AJul 22, 1997

Dual-stage biological process for removing nitrogen from wastewater

KRUEGER INC77 citations88