CAJ | 학술논문

研究次氯酸钠、双氧水、过氧乙酸等氧化剂对芳香聚酰胺反渗透膜性能的影响.通过膜表面接触角、膜通量、截留率以及表面化学结构等表征,重点考察了pH、氧化剂浓度以及处理时间对膜的分离性能和化学结构的影响.结果表明,芳香聚酰胺反渗透膜对过氧乙酸和双氧水具有较好的抗氧化性能,其对次氯酸钠的抗氧化性能与pH、次氯酸钠浓度、处理时间等有关.为芳香聚酰胺反渗透膜的有机生物污染处理工艺的选择提供理论和试验依据.
연구차록산납、쌍양수、과양을산등양화제대방향취선알반삼투막성능적영향.통과막표면접촉각、막통량、절류솔이급표면화학결구등표정,중점고찰료pH、양화제농도이급처리시간대막적분리성능화화학결구적영향.결과표명,방향취선알반삼투막대과양을산화쌍양수구유교호적항양화성능,기대차록산납적항양화성능여pH、차록산납농도、처리시간등유관.위방향취선알반삼투막적유궤생물오염처리공예적선택제공이론화시험의거.
In this paper,we studied the performance change of the aromatic polyamide reverse osmosis membrane treated with differen toxidant agents such as sodium hypochlorite,hydrogen peroxide and peracetic acid.The membrane properties were characterized in terms of membrane surface contact angle,mem-brahe flux,retention rates and surface chemical structure as well. Oxidation experiments were conducted under different pH,concentrations of oxidant agent and time of treatment.The results show that the aromatic polyamide reverse osmosis membrane possesses good oxidant resistance to peracetic acid and hydro-gen peroxide.While the oxidant resistance of the membrane to sodium hypochlorite is affected by the pH,sodium hypochlorite concentration and treating time as well. The experimental results will provide guide and basis for the treatment of bio-organic fouling on the membrane surface.