Li Jifan,Ho Yee Man,Lee Ka Chun,Chan Wai Yan,Chan Mui,Yeung Kai Ming
申请号：
US201414501059
公开号：
US9980484(B2)
申请日:
2014.09.30
申请国别(地区):
美国
年份:
2018
代理人:
Spruson & Ferguson (Hong Kong) Limited
摘要：
A self-regenerating chitosan based filter medium for disinfecting and purifying organic pollutants and other pollutants in a gas or liquid is disclosed herein. Porosity and surface charge of said filter medium is manipulative/tunable by varying one or more of the following parameter(s): concentration of chitosan, crosslinking density, amount of copolymers and additives, freezing temperature, freezing profile, and/or types of crosslinker used. The present filter medium is capable of self-regenerating under exposure to ultra-violet light for sufficient time and removing over 90% of the pollutants from each influent flowing through the filter medium.
