Title:
キレート精密ろ過膜の製造方法、再生方法及び応用
Document Type and Number:
Japanese Patent JP6697205
Kind Code:
B2
Abstract:
The present invention relates to the field of heavy metal containing waste water treatment, particularly relates to the preparation, regeneration and application of a chelating microfiltration membrane. The main technical features of the present invention are: the polyvinylidene fluoride (PVDF) casting membrane solution is shaped as a flat sheet membrane by thermally induced phase separation (TIPS), the PVDF membrane is defluorinated with an alkaline potassium permanganate solution, and then the carbon chain is extended with glycidyl methacrylate (GMA) as the graft monomer, and finally the nucleophilic substitution is carried out between melamine and GMA to produce a chelating microfiltration membrane for capturing and enriching heavy metals with high flux and high capacity; the chelating microfiltration membrane is easy to prepare and cheap, with good hydrophilcity and anti-pollution properties, excellent capturing capacities such as fast speed and high capacity on heavy metals, enabling the efficient purification treatment of the heavy metal containing waste water. The present invention is applicable in broad aspects, being useful in the treatment of waste water in heavy metal involving industries, but also the treatment of the comprehensive waste water biochemical tail water and the polluted surface water and underground water in industrial parks.
Inventors:
Liu Fu Chang
Chang Yen Hong
Songri
Zhao Way
Juchanchin
Lin Chen
Reaimin
Chang Yen Hong
Songri
Zhao Way
Juchanchin
Lin Chen
Reaimin
Application Number:
JP2019546956A
Publication Date:
May 20, 2020
Filing Date:
June 15, 2017
Export Citation:
Assignee:
NANJING UNIVERSITY
International Classes:
B01D69/00; B01D65/06; B01D69/02; B01D69/06; B01D71/34; B01D71/40; B01J45/00; B01J49/20; B01J49/50; C02F1/42; C08J9/26; C08J9/36
Domestic Patent References:
| JP2005146230A | ||||
| JP63172745A | ||||
| JP3016691A | ||||
| JP1224004A |
Foreign References:
| CN103537204A |
Attorney, Agent or Firm:
Kuribayashi Mitsuo
Osamu Nitta
Kazuki Kuribayashi
Osamu Nitta
Kazuki Kuribayashi