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| 1 | Development of a model to simulate soil heavy metals lateral migration quantity based on SWAT in Huanjiang watershed,China显示文摘Lateral transportation of soil heavy metals in rainfall events could significantly increase the scope of pollution. Therefore, it is necessary to develop a model with high accuracy to simulate the migration quantity of heavy metals. A model for heavy metal migration simulation was developed based on the SWAT(Soil and Water Assessment Tool) model. This model took into consideration the influence of soil p H value, soil particle size, runoff volume, sediment amount,concentration of water-soluble heavy metals dissolved in runoff and insoluble absorbed to the soil particles. This model was reasonable in Huanjiang watershed, Guangxi Zhuang Autonomous Region, south China, covering an area of 273 km^2. The optimal drainage area threshold was determined by analyzing the effects of watershed subdivision on the simulation results to ensure the simulation accuracy. The main conclusions of this paper were:(1) watershed subdivision could affect simulation migration quantity of heavy metals;(2) the quantity of heavy metals transported by sediment accounted for 97%–99% of the total migration quantity in the study watershed. Therefore, sediment played the most important role in heavy metal migration;(3) the optimal drainage area threshold percentage to ensure high simulation accuracy was determined to be 2.01% of the total watershed;(4) with the optimal threshold percentage, this model could simulate the migration quantity of As, Pb and Cd accurately at the total watershed and subwatershed level. The results of this paper were useful for identifying the key regions with heavy metal migration. | Pengwei Qiao Mei Lei Sucai Yang Jun Yang Xiaoyong Zhou Nan Dong Guanghui Guo | 2019 | Journal of Environmental Sciences2019，31，3： | 11 |
| 2 | Application of sewage sludge and intermittent aeration strategy to the bioremediation of DDT- and HCH-contaminated soil显示文摘Adding organic amendments to stimulate the biodegradation of pesticides is a subject of ongoing interest. The effect of sewage sludge on the bioremediation of dichlorodiphenyltrichloroethane(DDT) and hexachlorocyclohexane(HCH) contaminated soil was investigated in bench scale experiments,and intermittent aeration strategy was also used in this study to form an anaerobic–aerobic cycle. Bioremediation of DDT and HCH was enhanced with the addition of sewage sludge and the intermittent aeration. The removal rates of HCH and DDT were raised by 16.8%–80.8% in 10 days. Sewage sludge increased the organic carbon content from 6.2 to218 g/kg,and it could also introduce efficient degradation microbes to soil,including Pseudomonas sp.,Bacillus sp. and Sphingomonas sp. The unaerated phase enhanced the anaerobic dechlorination of DDT and HCH,and anaerobic removal rates of β-HCH,o,p′-DDT and p,p′-DDT accounted for more than 50% of the total removal rates,but the content of α-HCH declined more in the aerobic phase. | Qi Liang Mei Lei Tongbin Chen Jun Yang Xiaoming Wan Sucai Yang | 2014 | Journal of Environmental Sciences2014，26，8： | 5 |
| 3 | 查看详情显示文摘 | Chen Xiaoxiang Zhu Sucai Cai Yingjun | | 0，，1： | 1 |
| 4 | A discrete Cuckoo search algorithm for solving knapsack problems 显示文摘 | Zheng Hongqing Zhou Yongquan He Sucai | 2012 | AISS2012，4，18： | 1 |
| 5 | Risk assessment of water quality using Monte Carlo simulation and articial neural network method显示文摘 | Jiang Yunchao Nan Zhongren Yang Sucai | 2013 | Journal of Environmental Management2013，122，： | 1 |
| 6 | Studies on the effect of non-isothermal mixing on water-using network’s energy performance显示文摘 | Luo Yiqing Mao Tingbi Luo Sucai Yuan Xigang | 2011 | Computers and Chemical Engineering2011，，： | 1 |
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