曝气阿科蔓氧化塘处理高寒地区污染河水中试研究  

PILOT-SCALE RESEARCH ON TREATMENT OF POLLUTED RIVER WATER BY AQUAMATS OXIDATION POND WITH AERATION IN HIGH LATITUDE AND COLD REGIONS

作　　者：赵志刚[1,2] 张永祥[1] 李志元[1] 李维垚[1] 

机构地区：[1]北京工业大学水质科学与水环境恢复工程北京市重点实验室,100124 [2]北京市节约用水管理中心,北京100142

出　　处：《水处理技术》2013年第11期125-128,135,共5页Technology of Water Treatment

摘　　要：采用添加阿科蔓生态基的氧化塘对长春市新凯河污染河水进行了中试试验。研究结果表明,氧化塘中COD、NH4+-N、TN和TP的去除受温度影响较大,高温溶解氧不足时,曝气能明显提高污染物去除率。低温条件下,适量曝气有利于温度的传递,延长氧化塘的运行时间。温度大于16℃时,水力停留时间大于2 d,COD、NH4+-N、TN和TP最高平均去除率分别达到30%,40%、30%和30%,平均出水质量浓度达到37.92、4.02、9.14、0.65 mg/L,基本满足地表水Ⅴ类水质要求。氧化塘的全年平均进出水损耗率为14%左右,主要受温度影响,曝气与否对进出水损耗率影响不大。Aquamats oxidation pond with aeration was employed to treat micro-polltrted water of Xinkai river in Changchun city. The results showed that COD, NH4＋-N, TN and TP removal of oxidation pond was influenced by tcmparaturc. Aerating can increase the removal of pollutants in dissolved oxygen deficiency becansc of high tempctaturc. Under the condition of low temperature, amount of aeration facilitate to transfer temperature, prolonging the running time of oxidation pond. When temperature was greater than 16 ℃ and the hydraulic retention time was greater than the 2 d, removal efficiencies of COD, NH4＋-N, TN and TP were 30%, 40%, 30% and 30%, with effluent concentrations below 37.92 mg/L, 4.02 mg/L, 9.14 mg/L and 0.65 mg/L. The effluent quality can reach class V standard in ＂Environmental quality standards for surface water ＂. The water loss rate of oxidation pond is about 14%, mainly affected by temperature. Aeration has little impact on water loss rate..

关 键 词：污染河水 氧化塘 中试 

分 类 号：X522[环境科学与工程—环境工程]