滤除水中胶体悬浮物的有效措施.doc

滤除水中胶体悬浮物的有效措施在操作压力为0.1mpa、污水温度40时，膜的透水速度可达60120l/(m2h)，出水中含油量为痕迹，悬浮物固体含量平均值为 0. 32mg/ l，悬浮物粒径中值平均值为 0. 82m，完全达到了特低渗透油田回注水的水质标准。含油废水存在的状态分三种：浮油、分散油、乳化油。前两种较容易处理，可采用机械分离、凝聚沉淀、活性炭吸附等技术处理，使油分降到很低。但乳化油含有表面活性剂和起同样作用的有机物，油分以微米级大小的离子存在于水中，重力分离和粗粒化法都比较困难，而采用超滤膜技术，它使水和低分子有机物透过膜，在除油的同时去除cod及bod，从而实现油水分离。At the operating pressure is 0.1 mpa, sewage temperature 40 , membrane permeable speed can reach 60 to 120 l/(m2, h), the oil content in water for trace, suspended solid content is average for 0. 32 mg/l, the particle size of the suspended matter in the average value of 0. 82 microns, completely reached back to water injection for low permeable oilfield water quality standards. The state of oily wastewater in three kinds: floating oil, dispersed oil and emulsified oil. First two are easier to deal with, can use mechanical separation, coagulation precipitation, activated carbon adsorption technology such as processing, very low oil content. But emulsified oil also contains the surfactant and the function of organic matter, oil content exist in micron scale the size of the ions in the water, gravity separation and coarse graining method is difficult, but using ultrafiltration membrane technique, it makes the water and low molecule organic matter through the membrane, and removal of cod and bod in oil removal, so as to realize the oil-water separation. 1.对杂质的去除效率高，产水水质大大好于传统方法。1. On the impurity removal efficiency is high, the water quality well to traditional production methods. 2.彻底消除或者大大减少化学药剂的使用，避免二次污染。2. Eliminate or greatly reduce the use of chemicals, avoid secondary pollution. 3.系统易于自动化，可靠性高。运行简易，设施只有开启，关闭两档。3. The system is easy to automation and high reliability. Open and close operation simple, facilities only two notches. 4.具有良好的化学稳定性，有耐酸、耐碱以及耐水解的性能，能广泛应用于各种领域。 5.耐热温度可达到140，可采用超高温的蒸汽和环氧乙烷杀菌消毒；能在较宽的ph范围内使用，可以在强酸和强碱和各种有机溶剂条件下使用。4. With good chemical stability, acid and alkali resistance and resistance to hydrolysis performance, can be widely used in various fields. 5. Heat resistant temperature can reach 140 , can adopt the superheated steam and ethylene oxide sterilization; Can be used in a wide ph range, can under the condition of strong acid and strong alkali and a variety of organic solvents used. 6.过滤精度高，能有效滤除水中99.99%的胶体、细菌、悬浮物等有害物质。6. High filtration precision, and can effectively filter out 99.99% of the water, suspended solids, colloid, bacteria, etc. Harmful material. 7.与常规水处理系统费用相当生活污水经过超滤使处理水质变好从而进行回用，而锅炉省煤器工业废水中由于一般技术不能达标，采用超滤技术能充分处理废水。7. With conventional cost quite a sewage water treatment system after ultrafiltration makes processing water quality good to recycle, and because of general technology cant meet in industrial waste water, wastewater treatment using ultrafiltration technology can be fully. 超滤膜技术应用于造纸废水中，主要是对某些成分进行浓缩并回收，而透过的水又重新返回工艺中使用。一般，造纸废水膜分离技术研究主要包括：泰安锅炉回收副产品，发展木素综合利用；制浆废液的预浓缩；去除漂白废水中的有毒物质等。截留分子量为20000u的聚醚砜（pes200）膜适于处理scmp废水，清洗后膜的通量可恢复98%。采用0.8m微滤（mf）与50nm超滤（uf）无机陶瓷膜组合工艺对造纸废水进行了处理，在温度为15、压力为0.1mpa的操作条件下，0.8m膜对cod的去除率为30%45%，50nm膜对cod的去除率为55%70%。Ultrafiltration membrane technology in papermaking wastewater treatment, mainly for some components for enrichment and recovery, and through the water used in the return process. Generally, papermaking wastewater membrane separation technology research mainly include: recycling byproduct, development of comprehensive utilization of lignin; The preconcentration of pulping waste liquor; Remove the toxic substances in the bleaching wastewater, etc. Intercept molecular weight of 20000 u of polyether sulfone (pes200) membrane suitable for SCMP wastewater treatment, membrane flux can recover 98% after cleaning. Using 0.8 mu m microfiltration (mf) and 50 nm inorganic ceramic membrane ultrafiltration (uf) combined process of papermaking w