Liyan ZHANG

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Saline wastewater treatment method and system
- Patent number 12,162,783
- Issue date Dec 10, 2024
- Greentech Environment Co., Ltd.
- Mu Liu
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method for controlling hollow fiber nanofiltration membrane system...
- Patent number 12,151,210
- Issue date Nov 26, 2024
- Greentech Environment Co., Ltd.
- Mu Liu
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Hollow fiber nanofiltration membrane system and control method thereof
- Patent number 12,145,869
- Issue date Nov 19, 2024
- Greentech Environment Co., Ltd.
- Mu Liu
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
System and method for treating reverse-osmosis concentrated water w...
- Patent number 11,772,999
- Issue date Oct 3, 2023
- Greentech Environment Co., Ltd.
- Mu Liu
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Dosing control method and system for micro-flocculation in ultrafil...
- Patent number 11,440,819
- Issue date Sep 13, 2022
- Greentech Environment Co., Ltd.
- Mu Liu
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
SALINE WASTEWATER TREATMENT METHOD AND SYSTEM
- Publication number 20240308882
- Publication date Sep 19, 2024
- Greentech Environment Co., Ltd.
- Mu LIU
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
METHOD FOR CONTROLLING HOLLOW FIBER NANOFILTRATION MEMBRANE SYSTEM...
- Publication number 20240307824
- Publication date Sep 19, 2024
- Greentech Environment Co., Ltd.
- Mu LIU
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
HOLLOW FIBER NANOFILTRATION MEMBRANE SYSTEM AND CONTROL METHOD THEREOF
- Publication number 20240308883
- Publication date Sep 19, 2024
- Greentech Environment Co., Ltd.
- Mu LIU
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
SYSTEM AND METHOD FOR TREATING REVERSE-OSMOSIS CONCENTRATED WATER W...
- Publication number 20230234870
- Publication date Jul 27, 2023
- Greentech Environment Co., Ltd.
- Mu LIU
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
DOSING CONTROL METHOD AND SYSTEM FOR MICRO-FLOCCULATION IN ULTRAFIL...
- Publication number 20220212963
- Publication date Jul 7, 2022
- Greentech Environment Co., Ltd.
- Mu LIU
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE