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Preparation and Properties of the Regenerated Bamboo Cellulose Hollow Fiber Membranes
Received:May 17, 2022  
DOI：10.11980/j.issn.0254-508X.2022.09.003
Key Words:NMMO  bamboo cellulose  hollow fiber  membrane
Fund Project:国家自然科学基金面上项目（31971612）。
Author NameAffiliationPostcode
LIN Shan* College of Material Engineering，Fujian Agriculture and Forestry University， Fuzhou， Fujian Province， 350108 350108
LI Shi College of Material Engineering，Fujian Agriculture and Forestry University， Fuzhou， Fujian Province， 350108 350108
WANG Dong College of Material Engineering，Fujian Agriculture and Forestry University， Fuzhou， Fujian Province， 350108 350108
YUAN Hongmei College of Material Engineering，Fujian Agriculture and Forestry University， Fuzhou， Fujian Province， 350108 350108
HUANG Liulian College of Material Engineering，Fujian Agriculture and Forestry University， Fuzhou， Fujian Province， 350108 350108
CHEN Lihui College of Material Engineering，Fujian Agriculture and Forestry University， Fuzhou， Fujian Province， 350108 350108
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Abstract:Bamboo cellulose （BC） was dissolved by N-methylmorpholine-N-oxide （NMMO） and the regenerated bamboo cellulose （RBC） hollow fiber membrane was prepared via dry-wet spinning method. The pilot membrane system with prepared RBC hollow fiber membrane was adopted for the advanced treatment of drinking water. The results showed that the crystalline structure of the RBC hollow fiber membrane was cellulose type II， the crystallinity was lower than that of BC. The chemical composition of the RBC hollow fiber membrane was similar to that of BC and showed the excellent thermal stability and mechanical properties with initial thermal decomposition temperature of 329.8℃ and tensile strength of （62.6±6.1） MPa. After the treatment of drinking water （90 days of operation）， the TDS value decreased from 574 mg/L to 154 mg/L and the total number of bacteria from 35~40 cfu/mL to 20~25 cfu/mL； the effluent’s taste was excellent with high biological safety.
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