PDF Download

[1]PAN Qiong,PAN Feng.Research on Water Purification in Different Types of Constructed Wetlands in Dongting Lake[J].Research of Soil and Water Conservation,2015,22(06):317-323.

Copy

Research on Water Purification in Different Types of Constructed Wetlands in Dongting Lake

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 06 Page number: 317-323 Column: Public date: 2015-12-28

Title:: Research on Water Purification in Different Types of Constructed Wetlands in Dongting Lake

Author(s):: PAN Qiong^1,2, PAN Feng³; 1. Changsha Environmental Protection College, Changsha 410004, China;
2. National Engineering Laboratory for Applied Technology Research Center for Environmental Science and Engineering, Central-South University of Forestry & Technology, Changsha 410004, China;
3. Changsha Water Administration, Changsha 410007, China

Keywords:: constructed wetland; Dongting Lake; purification

CLC:: X171

DOI:: -

Abstract:: Three different constructed wetland types [the vertical flow wetland (VFW), subsurface flow wetland (SFW) and free surface wetland (FSW)] to treat Dongting Lake water and the removal efficiencies were compared. The results are as follows. (1) The inlet water concentrations of NH₄⁺-N, TN, TP, potassium permanganate index, BOD₅ and COD_Cr of Dongting Lake had the same seasonal change trend and were higher than three different constructed wetland types, which showed that these indicators in winter were higher than those in summer, and in the same time, the outlet water concentrations of NH₄⁺-N, TN, TP, potassium permanganate index, BOD₅ and COD_Cr of three different constructed wetland types showed the sequence: FSW > SFW > VFW. (2) The removal of TN, TP, potassium permanganate index, BOD₅ and COD_Cr of three different constructed wetland types showed the order: VFW > SFW > FSW, and the removal of NH₄⁺-N showed the order: VFW > FSW > SFW, among which the removal of BOD₅ was the best, but it had no significantly difference among the three different constructed wetland types (p > 0.05). (3) The above and underground biomass of three different constructed wetland plants showed the order: VFW > SFW > FSW, which had a significant difference among the three different constructed wetland types (p < 0.05), and the contents of N, P and N, P accumulation of VFW were higher than SFW and FSW. (4) The N, P accumulation had a significant linear correlation with the contents of N, P of three different constructed wetland plants with the higher correlation index, which indicated that the influence of constructed wetland plant biomass was greater than the contents of N, P in plants, so it could evaluate the removal efficiency of constructed wetland plant N, P based on the biomass.

References:: [1] Abe K, Komada M, Ookuma A, et al. Purification performance of a shallow free-water-surface constructed wetland receiving secondary effluent for about 5 years[J]. Ecological Engineering,2014,69:126-133.
[2] Xu D, Li Y, Fan X, et al. Influence of earthworm Eisenia fetida on Iris pseudacorus’s photosynthetic characteristics, evapotranspiration losses and purifying capacity in constructed wetland systems[J]. Water Science & Technology,2013,68(2):335-341.
[3] Zhong F, Wu J, Dai Y, et al. Effects of front aeration on the purification process in horizontal subsurface flow constructed wetlands shown with 2 D contour plots[J]. Ecological Engineering,2014,73:699-704.
[4] Matamoros V, Salvadó V. Evaluation of the seasonal performance of a water reclamation pond-constructed wetland system for removing emerging contaminants[J]. Chemosphere,2012,86(2):111-117.
[5] Berglund B, Khan G A, Weisner S E B, et al. Efficient removal of antibiotics in surface-flow constructed wetlands, with no observed impact on antibiotic resistance genes[J]. Science of the Total Environment,2014,476:29-37.
[6] Hu Y, Zhao Y, Zhao X, et al. High rate nitrogen removal in an alum sludge-based intermittent aeration constructed wetland[J]. Environmental Science & Technology,2012,46(8):4583-4590.
[7] Lu X M, Lu P Z, Chen J. Effects of Planting Densities on Water Quality Improvements and Pontederia cordata’s Physiology[J]. International Journal of Phytoremediation,2014,16(5):469-481.
[8] Zhang T, Xu D, He F, et al. Application of constructed wetland for water pollution control in China during 1990-2010[J]. Ecological Engineering,2012,47:189-197.
[9] Canga E, Dal Santo S, Pressl A, et al. Comparison of nitrogen elimination rates of different constructed wetland designs[J]. Water Science & Technology,2011,64(5):1122-1129.
[10] Villasenor J, Capilla P, Rodrigo M A, et al. Operation of a horizontal subsurface flow constructed wetland-microbial fuel cell treating wastewater under different organic loading rates[J]. Water Research,2013,47(17):6731-6738.
[11] Liu S, Lou S, Kuang C, et al. Water quality assessment by pollution-index method in the coastal waters of Hebei Province in western Bohai Sea, China[J]. Marine Pollution Bulletin,2011,62(10):2220-2229.
[12] Ebenstein A. The consequences of industrialization:evidence from water pollution and digestive cancers in China[J]. Review of Economics and Statistics,2012,94(1):186-201.
[13] Liu J, Yang W. Water sustainability for China and beyond[J]. Science,2012,337(6095):649-650.
[14] 万群,李飞,祝慧娜,等.东洞庭湖沉积物中重金属的分布特征,污染评价与来源辨析[J].环境科学研究,2012,24(12):1378-1384.
[15] 王雯雯,王书航,姜霞,等.洞庭湖沉积物不同形态氮赋存特征及其释放风险[J].环境科学研究,2013,26(6):589-605.
[16] 黄代中,万群,李利强,等.洞庭湖近20年水质与富营养化状态变化[J].环境科学研究,2013,26(1):27-33.
[17] 田泽斌,王丽婧,李小宝,等.洞庭湖出入湖污染物通量特征[J].环境科学研究,2014,27(9):1008-1015.
[18] 孙占东,黄群,姜加虎.洞庭湖主要生态环境问题变化分析[J].长江流域资源与环境,2011,20(9):1108-1113.
[19] 王岩,姜霞,李永峰,等.洞庭湖氮磷时空分布与水体营养状态特征[J].环境科学研究,2014,27(5):484-491.
[20] 郭雪莲,吕宪国.三江平原湿地典型植物群落氮的积累与分配[J].生态环境学报,2012,21(1):59-63.
[21] 胡伟芳,章文龙,张林海,等.中国主要湿地植被氮和磷生态化学计量学特征[J].植物生态学报,2014,38(10):1041-1052.
[22] 徐希真,黄承才,徐青山,等.模拟人工湿地中植物多样性配置对硝态氮去除的影响[J].生态学杂志,2012,31(5):1150-1156.
[23] Korboulewsky N, Wang R, Baldy V. Purification processes involved in sludge treatment by a vertical flow wetland system:focus on the role of the substrate and plants on N and P removal[J]. Bioresource Technology,2012,105:9-14.
[24] Kou Y, Lu X, Zhang Z, et al. Nitrogen retention and purification efficiency study for typical wetlands in West Jilin:Effects based on microcosm experiment and phosphorus increase[J]. Journal of Food, Agriculture & Environment,2012,10(2):1035-1040.
[25] Wu S, Kuschk P, Brix H, et al. Development of constructed wetlands in performance intensifications for wastewater treatment:a nitrogen and organic matter targeted review[J]. Water Research,2014,57:40-55.
[26] He W, Zhang Y, Tian R, et al. Modeling the purification effects of the constructed Sphagnum wetland on phosphorus and heavy metals in Dajiuhu Wetland Reserve, China[J]. Ecological Modelling,2013,252:23-31.
[27] Vohla C, K iv M, Bavor H J, et al. Filter materials for phosphorus removal from wastewater in treatment wetlands:A review[J]. Ecological Engineering,2011,37(1):70-89.
[28] Regueiro J, Matamoros V, Thibaut R, et al. Use of effect-directed analysis for the identification of organic toxicants in surface flow constructed wetland sediments[J]. Chemosphere,2013,91(8):1165-1175.
[29] Akinbile C O, Yusoff M S, Zuki A Z A. Landfill leachate treatment using sub-surface flow constructed wetland by Cyperus haspan[J]. Waste Management,2012,32(7):1387-1393.
[30] Canga E, Dal Santo S, Pressl A, et al. Comparison of nitrogen elimination rates of different constructed wetland designs[J]. Water Science & Technology,2011,64(5):1122-1129.
[31] Villasenor J, Capilla P, Rodrigo M A, et al. Operation of a horizontal subsurface flow constructed wetland-microbial fuel cell treating wastewater under different organic loading rates[J]. Water Research,2013,47(17):6731-6738.
[32] Saeed T, Sun G. A review on nitrogen and organics removal mechanisms in subsurface flow constructed wetlands:Dependency on environmental parameters, operating conditions and supporting media[J]. Journal of Environmental Management,2012,112:429-448.
[33] ávila C, Reyes C, Bayona J M, et al. Emerging organic contaminant removal depending on primary treatment and operational strategy in horizontal subsurface flow constructed wetlands:influence of redox[J]. Water Research,2013,47(1):315-325.
[34] Braeckevelt M, Reiche N, Trapp S, et al. Chlorobenzene removal efficiencies and removal processes in a pilot-scale constructed wetland treating contaminated groundwater[J]. Ecological Engineering,2011,37(6):903-913.
[35] Dunne E J, Coveney M F, Marzolf E R, et al. Nitrogen dynamics of a large-scale constructed wetland used to remove excess nitrogen from eutrophic lake water[J]. Ecological Engineering,2013,61:224-234.
[36] Carvalho P N, Araújo J L, Mucha A P, et al. Potential of constructed wetlands microcosms for the removal of veterinary pharmaceuticals from livestock wastewater[J]. Bioresource Technology,2013,134:412-416.

Similar References:

Memo

Last Update: 1900-01-01