Degradation of Ibuprofen Sodium Salt in a Hybrid Photolysis - Membrane Distillation System Utilizing Germicidal UVC Lamp

作者：Mozia Sylwia^*; Tsumura Tomoki; Toyoda Masahiro; Morawski Antoni W

来源：Journal of Advanced Oxidation Technologies, 2011, 14(1): 31-39.

• hybrid process
• photolysis
• direct contact membrane distillation
• ibuprofen sodium salt

The present paper describes photodegradation of non-steroidal anti-inflammatory drug ibuprofen sodium salt (C(13)H(17)O(2)Na) in a new hybrid system coupling photolysis and direct contact membrane distillation (DCMD). Photodegradation was conducted using UV254 germicidal lamp. The initial concentration of C(13)H(17)O(2)Na was c(0) = 0.05, 0.1, 0.2 or 0.4 mmol/dm(3). After 5 h of the process the mass of C(13)H(17)O(2)Na in the feed decreased for 99.8-96.7% for c(0) of 0.05-0.4 mmol/dm(3), respectively. The amount of total organic carbon (TOC) in the feed was lowered by ca. 75%, regardless of initial C(13)H(17)O(2)Na concentration. Among the volatile compounds which passed through the membrane low amounts of C(13)H(18)O(2) (0.04-0.16 mu mol) and some other organic compounds measured as TOC (1.2-3.7 mg) were present. The conductivity of distillate did not exceed the value of 2.6 mu S/cm and pH was about 5.7. The total effectiveness of organics removal was 99.97-99.99% for C(13)H(18)O(2) and 94.8-98.0% for TOC, dependent on initial concentration of ibuprofen sodium salt.

• 出版日期2011-1