国家水体污染控制与治理科技重大专项2009ZX07212-002-003-004;陕西省自然科学基金资助项目2011JM5004;陕西省教育厅科技计划项目12JK0489;the National Water Technology Major Project2009ZX07212-002-003-004;the Natural Science Foundation of Shaanxi2011JM5004;the Education Department Science and Technology Project of Shaanxi12JK0489