基于QUAL2K模型的尾水生态净化方案设计
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摘要
生态修复法常用于尾水生态河道的修复,不同的净化单元需要合理搭配才能获得最优的处理效果.本研究应用QUAL2K水质模型建立了针对某污水处理厂尾水河道的数值模型,进而筛选出最优的生态净化单元,并确定了单元所需的停留时间和布置密度.通过数值模拟得到布置密度、停留时间与水质达标等级的定量关系,可为今后进行设计方案优选和工程升级改造提供参考和支撑.
Ecological restoration method is commonly used in the restoration of the treated water,and different purification units need to be matched well to get the most effective treatment. In this study,QUAL2 K model was applied to the treated water channel in a wastewater treatment plant,and the optimal ecological purification unit was selected. Meanwhile,the density of the layout and the residence time for purification units was calculated. Through the numerical simulation,quantitative relationship among the density of the layout,the residence time and the grade of the water quality were obtained. This study can provide a reference for the optimization of the design scheme and the upgrading of the project in the future.
Ecological restoration method is commonly used in the restoration of the treated water,and different purification units need to be matched well to get the most effective treatment. In this study,QUAL2 K model was applied to the treated water channel in a wastewater treatment plant,and the optimal ecological purification unit was selected. Meanwhile,the density of the layout and the residence time for purification units was calculated. Through the numerical simulation,quantitative relationship among the density of the layout,the residence time and the grade of the water quality were obtained. This study can provide a reference for the optimization of the design scheme and the upgrading of the project in the future.
引文
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[19]WANG D Q,BAI S Y,WANG M Y,et al.Effect of artificial aeration,temperature,and structure on nutrient removal in constructed floating islands[J].Water Environment Research 2012,84(5):405-410.
[20]TIAN X Y,LI Y,GUO X.Water quality purifying effect of five kinds of aquatic plants in winter[J].Agricultural Science&Technology,2010,11(7):53-55(in Chinese).
[2]陈月,席北斗,何连生,等.QUAL2K模型在西苕溪干流梅溪段水质模拟中的应用[J].环境工程学报,2008,2(7):1000-1003.CHEN Y,XI B D,HE L S,et al.Application of QUAL2K model for prediction of water quality in West Shaoxi[J].Chinese Journal of Environmental Engineering,2008,2(7):1000-1003(in Chinese).
[3]CHAUDHURY R R,SOBRINHO J A H,WRIGHT R M,et al.Dissolvedoxygen modeling of the blackstone river(Northeastern United States)[J].Water Research,1998,32(8):2400-2412.
[4]张瑞斌,黄伟丽,管红良,等.苏南河网水体负荷削减工程及其效果分析[J].环境化学,2011,30(10):1816-1817.ZHANG R B,HUANG W L,GUAN H L,et al.Water load reduction project and its effect analysis in South of Jiangsu river network[J].Environmental Chemistry,2011,30(10):1816-1817(in Chinese).
[5]CHO J H,HA S R.Parameter optimization of the QUAL2K model for a multiple-reach river using an influence coefficient algorithm[J].Science of Total Environment,2010,408(8):85-91.
[6]AZZELLINO A,SALVETTI R,VISMARA R,et al.Combined use of the EPA-QUAL2E simulation model and factor analysis to assess the source apportionment of point and non point loads of nutrients to surface waters[J].Science of Total Environment,2006,371(1-3):214-222.
[7]周华.河流综合水质模型QUAL2K应用研究[J].中国水利水电科学研究院学报,2010,8(1):71-75.ZHOU H.Application research of a comprehensive river water quality model QUAL2K[J].Journal of China Insititute of Water Resources and Hydropower Research,2010,8(1):71-75(in Chinese).
[8]STONE R.Ecology-From remarkable rescue to restoration of lost habit[J].Science,2008,322(5899):184.
[9]PALIWAL R,SHARMA P,KANSA A.Water quality modelling of the river Yamuna(India)using QUAL2E-UNCAS[J].Journal of Environmental Management,2007,83(2):131-144.
[10]PALMIERI V,CARVALHO R J.Qual2E model for the CorumbataíRiver[J].Ecological Modelling,2006,198(1-2):269-275.
[11]PELLETIER G J,CHAPRA S C,TAO H.QUAL2Kw-A framework for modeling water quality in streams and rivers using a genetic algorithm for calibration[J].Environmental Modelling&Software,2006,21(3):419-425.
[12]YE H F,GUO S H,LI F M,et al.Water quality evaluation in Tidal River reaches of Liaohe River Estuary,China using a revised QUAL2K model[J].Chinese Geographical Science,2013,23(3):301-311.
[13]YUCEER M,KARADURMUS E,BERBER R.Simulation of river streams:Comparison of a new technique with QUAL2E[J].Environmental Modelling&Software,2007,46(1-2):292-305.
[14]郭永彬,王焰新.汉江中下游水质模拟与预测QUAL2K模型的应用[J].安全与环境工程,2003,10(1):4-6.GUO Y B,WANG Y X.Hydrochemical modeling and prediction of the middle and lower reaches of Hanjiang River:Application of QUAL2K model[J].Safety and Environmental Enginnering.2003,10(1):4-6(in Chinese).
[15]展巨宏,李辉,李强.河流综合截污工程对昆明船房河水质的改善效果[J].环境化学,2014,33(1):148-153.ZHAN J H,LI H,LI Q.Effect of comprehensive river sewage closure treatment project on water quality in Changfang River,Kunming[J].Environmental Chemistry,2014,33(1):148-153(in Chinese).
[16]JUNG S S,KIM K S.Evaluation and application of QUAL2E and QUAL2K models in Anyang stream[J].Journal of Korean Society of Environmental Engineers,2008,30(5):544-551.
[17]朱文婷.低污染水生态净化技术方案研究与效果评估[D].南京:南京大学.2016.ZHU W T.Research and effect evaluation of ecological purification for low pollution water[D].Nanjing:Nanjing University,.2016(in Chinese).
[18]YUAN,X,QIAN X,ZHANG R,et al.Performance and microbial community analysis of a novel bio-cord carrier during treatment of a polluted river[J].Bioresource Technology,2012,117:33-39.
[19]WANG D Q,BAI S Y,WANG M Y,et al.Effect of artificial aeration,temperature,and structure on nutrient removal in constructed floating islands[J].Water Environment Research 2012,84(5):405-410.
[20]TIAN X Y,LI Y,GUO X.Water quality purifying effect of five kinds of aquatic plants in winter[J].Agricultural Science&Technology,2010,11(7):53-55(in Chinese).