大九湖泥炭藓湿地对磷、铜污染物净化作用的模拟研究  

ON SIMULATING THE PURIFICATION EFFECTS OF THE SPHAGNUM WETLAND USING THE WASTEWATER THAT CONTAIN PHOSPHORUS AND CUPRUM IN DAJIUHU

作　　者：胡鸿兴[1] 何伟[1] 刘巧玲[1] 胡万辉[1] 沈虹[1] 任晓迪[1] 石宇鹏[1] 杨阳[1] 田艳萍[1] 雷卫国[1] 彭博[1] 张五州[1] 刘玲[1] 钟鑫[1] 陈侈[1] 秦蓓蓓[1] 张南南[1] 毛娜[1] 江丽[1] 贾明元[1] 沈娟[1] 古南辉[1] 陈文方[1] 

机构地区：[1]武汉大学神农架及长江流域生态考察队,湖北武汉430072

出　　处：《长江流域资源与环境》2008年第6期920-926,共7页Resources and Environment in the Yangtze Basin

基　　金：联合国环境署全球环境基金(GEE)(编号:02-2.3.1)资助项目(2004~2008)

摘　　要：在大九湖泥炭藓沼泽湿地采用野外实地模拟方法,就泥炭藓湿地对铜、磷两种污染物的净化能力进行了研究。结果表明,磷污染物浓度分别为10,100,1 000 mg/L时,两小时后泥炭藓湿地对该污染物的净化率分别为93.9%,69.5%,66.3%;同样的浓度梯度下,对铜污染物的净化率分别为100.0%,97.6%,88.0%。泥炭藓湿地对污染物具有很强的净化能力,其泥炭层部分在湿地净化污染物中起到重要作用。利用拟一级动力学模型、修改上限的拟一级动力学模型、拟二级动力学模型、Elovich模型、双常数速率模型、抛物线扩散模型等6个模型对泥炭藓湿地的净化进行动态研究,其中后4个模型均可模拟湿地净化的动态过程。长期预测以拟二级动力学模型为最佳。The purification effects of the sphagnum wetland on the contaminated water were studied. Two kinds of compounds （which are phosphate and bluestone） were used as pollutants in this study and the simulation boxes were introduced into the study. 10 L polluted water was added into every box,using four grads of concentration of each element-0,100,1000,1000 mg/L. The experimental results indicated that： the purification rate of the three kinds of water polluted by the phosphate（concentrations are 10,100,100 mg/L,respectively） were 93.9%, 69.5%, 66.3% after two hours＇ purification of the sphagnum wetland, while purification rate polluted by the bluestone under the same condition were 100.0%,97.6% ,88.0%. So a conclusion is made that the purification ability of the sphagnum wetland is very high, and the turf plays an important part in purification of the sphagnum wetland. The dynamic processes of the purification of the sphagnum wetland were tested using six kinetic models. The processes could be described： well by pseudo-second-order kinetic model, Elovich model, two-constant rate model, hyperbolic diffusion model. However, considering the prediction, pseudo-second-order kinetic model is the best.

关 键 词：神农架大九湖 泥炭藓湿地 净化率 动力学 净化机理 

分 类 号：X51[环境科学与工程—环境工程] P931.7[天文地球—自然地理学]