CAJ | 학술논문

针对工业园区电镀废水处理中生化指标达标难的问题，采用新型聚四氟乙烯(PTFE)膜组件构建膜生物反应器(MBR)，通过现场试验研究了MBR工艺处理电镀废水的实际效果。结果表明，通过合理的维护管理，MBR 膜通量能稳定维持在16.67 L/(m2·h)左右，对 COD 的去除率可达到50%以上，出水COD质量浓度稳定在80 mg/L以下，但对氨氮的去除效果受水力停留时间(HRT)、温度、系统负荷等因素的影响较大。与传统的生物接触氧化工艺相比，基于新型膜材料的MBR工艺可以大大提高污泥量，避免结垢和出水跑泥等问题，提高了处理效果。从投资运行费用来看，采用MBR工艺的总投资费用高于普通生化处理工艺，运行费用约为2元/t。
침대공업완구전도폐수처리중생화지표체표난적문제，채용신형취사불을희(PTFE)막조건구건막생물반응기(MBR)，통과현장시험연구료MBR공예처리전도폐수적실제효과。결과표명，통과합리적유호관리，MBR 막통량능은정유지재16.67 L/(m2·h)좌우，대 COD 적거제솔가체도50%이상，출수COD질량농도은정재80 mg/L이하，단대안담적거제효과수수력정류시간(HRT)、온도、계통부하등인소적영향교대。여전통적생물접촉양화공예상비，기우신형막재료적MBR공예가이대대제고오니량，피면결구화출수포니등문제，제고료처리효과。종투자운행비용래간，채용MBR공예적총투자비용고우보통생화처리공예，운행비용약위2원/t。
A membrane bioreactor (MBR) was made using novel PTFE membrane modules aiming at overcoming the difficulty in complying with the biochemical index requirements of emission standard for the treatment of electroplating wastewater in industrial park. The treatment effectiveness of the MBR process was studied on site in pilot scale. The result showed that the flux of MBR membrane remained at about 16.67 L/(m2·h) stably through reasonable maintenance and management. The removal rate of COD reached above 50%, and the concentration of COD in effluent was not higher than 80 mg/L. The removal of ammonia nitrogen was affected greatly by hydraulic retention time (HRT), temperature, and loading capacity. Compared to the traditional biological contact oxidation process, the MBR process based on a novel membrane material increases the amount of sludge significantly, and eliminates the scaling problem and the run-off of sludge with effluent, thus improving the treatment effectiveness. The MBR process needs more investment than common biochemical treatment process and its running cost is about 2 RMB per ton.