The paper focused on the dissolved oxygen consumption rate of water and sediment as well as the sediment release potential in situ. Improvement effects the operation of WLAs (water lifting aerators) of water quality and sediment was also researched. The dissolved oxygen consumption rate of water and sediment was at high levels showed by in situ experiment, which were 0.106~0.132mg/(L·d) and 0.358~0.410mg/(L·d). In the main reservoir the maximum release potential of Fe, TOC, TN and TP was 2.3~2.7, 4.4~5.2, 3.0~3.3 and 0.165~0.224mg/L in 480h. In the controlled area of the WLAs, the reduction rates of Fe, TOC, TN and TP in water were 78.6%, 22.9%, 47.8% and 66.7%, and those in surface sediment were 8.7%, 17.4%, 18.0% and 17.4%. The results of Biolog measurement indicated that microbial activity both in water and in surface sediment have been enhanced through the operation of WLAs. WLAs technology has been proved to be effective in in situ improvement of water quality and sediment in deep stratified reservoirs. And field application of WLAs has achieved remarkable results.
周子振, 黄廷林, 李扬, 龙圣海, 周石磊. 扬水曝气器对水源水库水质改善及沉积物控制[J]. 中国环境科学, 2017, 37(1): 210-217.
ZHOU Zi-zhen, HUANG Ting-lin, LI Yang, LONG Sheng-hai, ZHOU Shi-lei. Improvement of water quality and sediment control by WLAs in a source water reservoir. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(1): 210-217.
M?ynarczyk N, Bartoszek M, Polak J, et al. Forms of phosphorus in sediments from the Gocza?kowice Reservoir[J]. Applied Geochemistry, 2013,37:87-93.
[2]
Sun S, Huang S, Sun X, et al. Phosphorus fractions and its release in the sediments of Haihe River, China[J]. Journal of Environmental Sciences, 2009,21:291-295.
Huang L, Fang H, Reible D. Mathematical model for interactions and transport of phosphorus and sediment in the Three Gorges Reservoir[J]. Water Research, 2015,85:393-403.
Souza, V A, Wasserman, J C. Distribution of Heavy Metals In Sediments of a Tropical Reservoir in Brazil:Sources And Fate[J]. Journal of South American Earth Sciences, 2015,63:208-216.
[7]
Wang L, Yuan X, Zhong H, et al. Release behavior of heavy metals during treatment of dredged sediment by microwave- assisted hydrogen peroxide oxidation[J]. Chemical Engineering Journal, 2014,258:334-340.
[8]
Wu D, Hua Z. The effect of vegetation on sediment resuspension and phosphorus release under hydrodynamic disturbance in shallow lakes[J]. Ecological Engineering, 2014,69:55-62.
[9]
Chen Q, Jinren N, Ma T, et al. Bioaugmentation treatment of municipal wastewater with heterotrophic-aerobic nitrogen removal bacteria in a pilot-scale SBR[J]. Bioresource Technology, 2015,183:25-32.
[10]
Xu D, Ding S, Sun Q, et al. Evaluation of in situ capping with clean soils to control phoshate release from sediments[J]. Science of the Total Environment, 2012,438:334-341.
[11]
Qian G, Chen W, Lin T, et al. In-situ stabilization of Pb, Zn, Cu, Cd and Ni in the multi-contaminated sediments with ferrihydrite and apatite composite additives[J]. Journal of Hazardous Materials, 2009,170:1093-1100.
[12]
Ma W, Huang T, Li X. Study of the application of the water- lifting aerators to improve the water quality of a stratified, eutrophicated reservoir[J]. Ecological Engineering, 2015,83:281- 290.
[13]
Chai B, Huang T, Zhu W, et al. A new method of inhibiting pollutant release from source water reservoir sediment by adding chemical stabilization agents combined with water-lifting aerator[J]. Journal of Environment Sciences, 2011,23(12):1977-1982.
[14]
Zhou Z, Huang T, Ma W, et al. Impacts of water quality variation and rainfall runoff on Jinpen Reservoir, in Northwest China[J]. Water Science and Engineering, 2015,8(4):301-308.
[15]
Tessier A, Campbell P, Bisson M, et al. Sequential extraction procedure for the speciation of particulate trace metals[J]. Analytical Chemistry, 1979,51(7):844-851.
Zhou S, Huang T, Zhang, H, et al. Nitrogen removal characteristics of enhanced in situ indigenous aerobic denitrification bacteria for micro-polluted reservoir source water[J]. Bioresource Technology, 2016,201:195-207.
[18]
Zhang Y, Wu Z, Liu M, et al. Dissolved oxygen stratification and response to thermal structure and long-term climate change in a large and deep subtropical reservoir (Lake Qiandaohu, China)[J]. Water Research, 2015,75:249-258.
[19]
Gerling A, Browne R, Gantzer P, et al. First report of the successful operation of a side stream supersaturation hypolimnetic oxygenation system in a eutrophic, shallow reservoir[J]. Water Research, 2014,67:129-143.
[20]
Huang T, Xuan L, Rijnaarts H, et al. Effects of storm runoff on the thermal regime and water quality of a deep, stratified reservoir in a temperate monsoon zone, in Northwest China[J]. Science of the Total Environment, 2014,485-486(3):820-827.
