国家水体污染控制与治理科技重大专项2012ZX07302-002;陕西省自然科学基金2012JQ7021;陕西省教育厅项目12JS050;the National Major Project on Water Pollution Control and Management Technology2012ZX07302-002;the Natural Science Foundation of Shaanxi Province2012JQ7021;the Scientific Research Plan Projects of Shaanxi Province Education Department12JS050