一， 电化学、物化生物法 高浓度污水在生化处理前的预处理，使其达到可生化的要求。高浓 度污水是指肠衣生产过程中吸附肝素钠所排放的污水，它主要是有 水，和污水中的粗蛋白，脂肪，和水溶性有机物，无机物组成，其 中约水占 97%，其它约占 3%。 One, electrochemical, materialized biological method of high concentration wastewater pretreatment before biochemical treatment, so that it can meet biochemical requirements. High consistency refers to the degree of wastewater in the production of casing by adsorption of heparin sodium discharge of sewage, it mainly have water, and sewage of crude protein, fat, and water soluble organic matter, inorganic matter, about 97%, water in the other accounts for about 3%. 1，粗蛋白，脂肪是以大分子形式存在于水中，此类有机物可通过 气浮，沉淀的方法处理达到有效的去除目的。通过此法处理后的污 水 COD 有效去除约为 30%。 1. Crude protein, fat is in the form of large molecule in the water, such organic matter can be treated by air float, precipitation method treatment to achieve effective removal purpose. The effective removal of contaminated water COD by this method is about 30%. 2，存在于水中的水溶性有机物是造成污水 COD 含量高的主要原 因，他们成分复杂，分子量小，用絮凝，气浮的办法没有效果。直 接生化更不可能。只有利用他们和水分子的电位差，通过电化学法 进行剥离处理，处理后的污水 COD 有效去除达 80%。 The water soluble organic matter in the water is the main cause of the high COD content of the sewage. They are complicated, the molecular weight is small, and the method of flocculation is not effective. It's not even possible to direct the biochemistry. Only by using the electric potential difference between them and the water molecules, the removal process can be carried out by electrochemical method, and the effective removal of sewage COD is 80%. 3，通过 以上预处理，污水中的 COD 已有效的去除了，同时也为 后续的生化处理减轻了负荷，但是水中的含盐量并没有减少，完全 用稀释的办法，水资源浪费大，也加大后续处理成本，目前我国在 除盐的领域主要是采用蒸馏法，树脂交换吸附法，和电吸附法等， 单纯的用蒸馏法，设备投资大，运行成本高。树脂交换法不适合此 类污水，且运行成本也高，在这里用的是电吸附法，电吸附是利用 电的正负极吸附水中的氯离子和钠离子。采用此类技术消耗电能 小，程序复杂，设备投资大。因为此类技术对污水 COD 也有一定 要求，所以它的除盐率有限，大约在 35%--50%。从而该类污水在 后续生化前要求厂区其它污水量要大于高浓度污水量，进行稀释放方可用此类技术。 3, through the above pretreatment, the COD in wastewater has removed effectively, as well as the subsequent biochemical treatment reduced the load, but the salt in the water does not reduce, entirely in dilute solution, waste water, also increase the processing cost, at present our country in the field of desalination is mainly distillation, exchange resin adsorption method, and the electric adsorption method, such as simple distillation in, large equipment investment, operation cost is high. The resin exchange method is not suitable for this kind of sewage, and the operation cost is high. In this case, the electric adsorption method is used, and the electroadsorption is the chloride ion and sodium ion in the water with the positive and negative adsorption of electricity. This kind of technology consumes power small, the program is complex, the equipment invests big. Since such technology also has a requirement for sewage COD, it has a limited desalination rate, about 35 to 50 percent. This kind of sewage is required to be more than the high concentration of sewage in the factory area before the subsequent biochemistry, which can be used by the diluent. 二、电加热和太阳能补偿蒸馏法 Electric heating and solar compensation distillation 1、 电加热太阳能补偿蒸馏法，是指污水在用电能加热蒸馏过程 中，利用太阳能的吸热保温特性，来提高蒸馏区域的温度和 保温，从而降低污水蒸馏过程中对电能的需求量。以达到降 低能耗的目的。 1, electric heating solar energy compensation distillation, refers to the sewage in the electricity heating distillation process, the use of solar energy heat insulation properties, to improve distillation temperature and heat preservation area, thereby reducing sewage, the demand for electricity in the process of distillation. To reduce energy consumption. 2、在蒸馏工艺中采用滚筒形式传热以此加大 蒸馏区域的平方面积，提高蒸馏效果。也减少了土地占有率， 同时也可将污水中的有机物干燥固化。采用此类技术，设备 投资大，能耗相对大，但是处理效果彻底，污水回收利用高， 运行过程简单。 2. In the process of distillation, the heat transfer of the drum is used to increase the square area of the distillation area and improve the distillation effect. It also reduces the share of the land, while curing the organic matter in sewage. Using this kind of technology, the equipment investment is large, the energy consumption is relatively large, but the treatment effect is thorough, the sewage recycling is high, the operation process is simple.