武河湿地水体富营养化状况分析
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摘要
对山东省临沂市武河湿地的实地考察及水样采样,并对水体中的N、P、COD、BOD等水质指标进行测定与分析,试验结果证明武河人工湿地对TN、COD、BOD的去除率分别为55%、76%与70%,对P的去除率较低。武河湿地8个采样点的TN平均浓度为26.55 mg/L,TP平均浓度为0.125 mg/L。根据Thomas的水体富营养化程度划分标准分析,武河湿地水体的总磷与总氮含量均处于"富"级富营养化程度,所以武河湿地水体富营养化程度整体较高,对污水处理潜力未能得到充分发挥。
The authors had a field trip to wetlands of Wu River in Linyi, Shandong Province, collected samplesto determine and analyze water quality indexes, such as N, P, COD and BOD. The experimental results showedthat the constructed wetlands could remove 55% of TN, 76% of COD and 70% of BOD, but only had a lowremoval rate of P. The average concentration of TN and TP of eight sample points were 26.55 and0.125 mg/L, respectively. According to the standard of eutrophication degree analysis(Thomas), the TP and TNof Wu River wetlands are in the rich degree of eutrophication level. Therefore, the eutrophication degree ofconstructed wetlands of Wu River is high overall, indicating that wastewater treatment does not develop well.
The authors had a field trip to wetlands of Wu River in Linyi, Shandong Province, collected samplesto determine and analyze water quality indexes, such as N, P, COD and BOD. The experimental results showedthat the constructed wetlands could remove 55% of TN, 76% of COD and 70% of BOD, but only had a lowremoval rate of P. The average concentration of TN and TP of eight sample points were 26.55 and0.125 mg/L, respectively. According to the standard of eutrophication degree analysis(Thomas), the TP and TNof Wu River wetlands are in the rich degree of eutrophication level. Therefore, the eutrophication degree ofconstructed wetlands of Wu River is high overall, indicating that wastewater treatment does not develop well.
引文
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[2]Brix H.Treatment of wastewater in the rhizosphere of wetland plants-the root zone method[J].Water Science and Teehology,1987,19:107-118
[3]Bavor H J,Roser D J,Adeoek P W.Challenges for the development of advanced constructed wetlands technology[J]Water Science and Technology,1995,32(3):13-20.
[4]王世和.人工湿地污水处理理论与技术[M].北京:科学出版社,2007:7.
[5]郭培章,宋群.中外水体富营养化治理案例研究[M].北京:中国计划出版社,2003:23.
[7]江锦花.环境化学实验[M].北京:化学工业出版社,2010:89.
[8]董德明,花修艺,康春莉.化学环境实验[M].北京大学出版社,2010:28.
[9]Brix H.Do rnacrophytes play a role in constructed treatment wetlands[J].Wat.Sci.Tech.,1997,35(5):11-17.
[10]吴晓磊.人工湿地废水处理机理[J].环境科学,1995,16(3):83-86.
[11]蒯圣龙,张思海,张祥霖.水污染与水质监测[M].合肥:合肥工业大学出版社,2010:263.
[12]谢炜平.水质检验技术[M].北京:中国建筑工业出版社,2011:136.
[13]高士祥,顾雪元.环境化学实验[M].上海:华东理工大学出版社,2009:97.
[14]王世和.人工湿地污水处理理论与技术[M].北京:科学出版社,2007:184.