【作者】 高旭阔；

【导师】 王志盈；

【作者基本信息】 西安建筑科技大学 ， 环境工程， 2003， 硕士

【摘要】 本课题研究污水处理厂三级出水回用于电厂锅炉补给水除盐系统的预处理工艺，并分析活性炭对低浓度有机废水吸附过程的有关问题，通过实验得到如下结果： 1．本课题研究污水处理厂三级出水回用于热电厂锅炉补给水除盐系统的预处理工艺。为污水回用，提高水资源利用率提供有效的途径。 2．试验表明：经过活性炭吸附对去除再生水中微量污染物效果显著。预处理出水满足：COD_Mn＜2mg/1，浊度＜1NUT，色度＜1度，阴离子表面活性剂＜0.1mg/1，细菌总数＜100个/1，Fe＜0.3mg/1；活性炭吸附运行参数为：活性炭柱滤速为5～7.5m/h，停留时间12～15min，炭柱的反冲周期为8～10天，再生周期为100天。 3．电渗析可以对水中离子有效去除。经过电渗析处理后，出水的含盐量和总硬度分别可至260～280mg/1和100mg/1。通过试验得出的电渗析器的工作电流为0.3A：，进水流量控制在2001/h。 4．经活性炭吸附——电渗析除盐后，通过离子交换模拟试验验证：再生水各项水质指标均满足热电厂锅炉除盐系统的进水水质要求，系统原有的工作周期也从原来的13h增加到19h。更多还原

【Abstract】 Pretreatment technique of feed water for thermoelectricity boiler from profound processing water is studied, and then active carbon adsorption of low density organic wastewater is analysised. We can get following results:1. We study the pretreatment technique of feed water for thermoelectricity boiler from profound processing water. This can reuse profound processing water from sewage plant as water supply and it can largely benefit our society and environment.2. In our study, after active carbon adsorption-electro-dialysis de-salt treatment, we get the water that thermoelectricity boiler quality of de-salt techniques very well: CODMn<3mg/l, turbidity<1 NUT, chroma<1, anion surface-active agent<0.5mg/1, total bacteria<100/ml, Fe<0.3mg/l.3. Electro-dialysis can effectively remove the ions in the wastewater. After electro-dialysis, the sailnoness and total hardness of the effluent can decrease to 260~280mg/l and 100mg/1. And from the experiments we can get the working electricity as 0.3A, the feed quantity as 2001/h.4. After active carbon adsorption-electro-dialysis de-salt treatment, we can verify that: all the index of the regenerated can meet the thermoelectricity boiler quality of de-salt techniques very well. And the working period of the pretreatment is increased from 13h to 19h.更多还原