CAJ | 학술논문

中试采用超滤膜直接过滤处理低温低浊水，考察了超滤膜的除污性能和影响膜污染的各种因素。结果表明超滤膜直接过滤的出水浊度恒低于0．1 NTU，对COD和UV254的平均去除率分别为17％和14％；处理水量越低，过滤周期越短，反洗强度越大，跨膜压差（TMP）增长越缓慢，越有助于缓解膜污染，使超滤膜系统能够长时间稳定运行；低温对膜污染的影响不容忽视。
중시채용초려막직접과려처리저온저탁수，고찰료초려막적제오성능화영향막오염적각충인소。결과표명초려막직접과려적출수탁도항저우0．1 NTU，대COD화UV254적평균거제솔분별위17％화14％；처리수량월저，과려주기월단，반세강도월대，과막압차（TMP）증장월완만，월유조우완해막오염，사초려막계통능구장시간은정운행；저온대막오염적영향불용홀시。
A pilot experiment of water treatment of direct filtration under low temperature and low turbidity with ultrafiltration membrane was carried out. The result shows that turbidity is always below 0. 1 NTU;removal rates of COD and UV254 are 17% and 14%,respectively. When less water is treated,filtration cycle is shorter,backwashing intensity is greater and TMP grows more slowly, it is more helpful to alleviating membrane fouling and making system run stably. Low temperature on membrane fouling can not be ignored.