Process, Apparatus and Membrane Bioreactor for Wastewater Treatment
Patent Information:
1. Filing Country: China
Application No: 201180059312.4
Filing Date: 08 June 2013
Patent No: ZL201180059312.4
Issue Date: 08 June 2016
2. Filing Country: Japan
Application No: 2013-543497
Filing Date: 14 June 2013
Patent No: 5889328
Issue Date: 26 February 2016
3. Filing Country: Hong Kong
Application No: 14100558.8
Filing Date: 17 January 2014
Patent No: HK1187595
Issue Date: 21 April 2017
4. Filing Country: USA
Application No: 13/994403
Filing Date: 14 June 2013
Patent No:
Issue Date:
5. Filing Country: Europe
Application No: 11849768.4
Filing Date: 25 June 2013
Patent No:
Issue Date:
Inventor 1: Prof. Guanghao, CHEN
Inventor 2: Dr. Ho Kwong, CHUI
Inventor 3: Mr. Peng, BAI

Membrane Enhanced Primary Treatment (MEPT) is a wastewater treatment process utilizing a novel high flux and non-fouling membrane. The conventional step of primary sedimentation can be eliminated using this process, resulting in significant reduction in sludge production, energy consumption, and plant operating cost.
Potential Application   Advantage
Conventional biological wastewater treatment technology makes use of microfiltration membranes to separate the sludge from the mixed liquid. To ensure proper functioning of the membrane, special operations have to be arranged to prevent biofouling of the membrane. These operations result in the increase in energy consumption and operation cost, as well as reduction of effective operational duration. By using the MEPT process, the off-tank cleaning step can be eliminated, resulting in a more efficient sewage treatment process.   - Non-fouling membrane
- Reduced sludge production
- Energy saving
- Reduced operation cost and space requirements
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Contact information :
Ms Shirley Woo
(852) 2358 7918
HKUST R and D Corporation Ltd
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Technology Transfer Center
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