【作者】 章丽萍；

【导师】 何绪文；

【作者基本信息】 中国矿业大学（北京） ， 环境工程， 2009， 博士

【摘要】 论文对温榆河微污染水水质改善技术进行了试验研究。结果表明,温榆河水质氨氮、总氮等超标,其生化性能指标BOD5/CODcr<0.3,属于难生物降解污水：以钛金属板材为阳极基材,在表面涂有一定比例的Ru02和Ti02活性涂层,并添加了一定比例的Ir02,制备了一种具有高浓度、高氧化活性物质的电极,试验确定极板间距1cm、电解时间10min、电解电压为11V、水中氨氮与投加氯化钠摩尔比为1：3的最佳运行参数；通过机理研究试验推测电化学氧化过程脱氮机理；通过自行研发并已申请专利的微污染水处理设备,结合人工湿地技术的优点,中试确定了以电化学氧化+人工湿地为主的处理技术,电压为6V、板间距1cm、电解时间10min、氯化钠摩尔投加比为1：3、二次反应池停留时间10min、人工湿地水力停留时间7天,氨氮平均出水浓度为0.27mg／L,总氮平均出水浓度为2.4mg/L, CODcr平均出水浓度为10.76mg/L, BOD5平均出水浓度为4.08mg/L, TP平均出水浓度为0.18mg／L,出水水质达到并优于Ⅳ类水体要求；电化学氧化装置的吨水电耗为1.77KWh,总吨水处理成本为1.32元；在运行维护管理方面应定期排泥、清洗电极、防止滤床堵塞、冬季覆盖保温。更多还原

【Abstract】 This paper deals with the quality improving technology of the light polluted water from WenYu River. The result shows that the water-quality indexes of WenYu River such as ammonia nitrogen, total nitrogen exceed the standard, the biochemical index BOD5/CODcr<0.3 which is hard to biodegradation; prepared a electrode with high concentration and strong active oxidizing property which used titanium as anode’s substrate material, and the surface coated with a definite ratio RuO2, TiO2 and IrO2; making the optimal parameter through testing such as polar plates spacing is 1.0cm, electrolysis span is 10 minutes, electrolysis voltage is 11V, mole ratio between ammonia nitrogen and NaCl is 1:3; conjectureing the mechanism of removal nitrogen based on the experimental investigations; researching and developing a light polluted water treated equipment which has been applied for patent; fixing on electrochemistry oxidation and constructed wetland treatment technology of semi-experiment combined the advantages of constructed wetland, making the optimal parameter through lab testing such as polar plates spacing is 1.0cm, electrolysis span is 10 minutes, electrolysis voltage is 6V, mole ratio between ammonia nitrogen and NaCl is 1:3, quadratic reaction time 10min, hydraulic detention time 7days of constructed wetland, the water quality indexes of effluent from the sewerage treatment system are. meted or even preceded the remand ofⅣwater bodies standard such as the mean concentration of ammonia nitrogen is 0.27mg/L, total nitrogen is 2.4mg/L, CODcr is 10.76mg/L, BOD5 is 4.08mg/L, total phosphorus is 0.18mg/L; the power consumption treating per ton wastewater of electrochemistry oxidation equipment is 1.77KWh, the total costs are 1.32 RMB; discharging mud, washing electrode, preventing blocking up the filtering bed and covering and keeping warm at regular intervals on operating, maintaining and administrating.更多还原