国家水体污染控制与治理科技重大专项No.2012ZX07313001;新世纪优秀人才计划项目No.NCET-12-1043;陕西省创新团队项目No.IRT 2013KCT-13Supported by the Major Science and Technology Program for Water Pollution Control and Management of ChinaNo.2012ZX07313001,the Program for New Century Excellent Talents in UniversityNo.NCET-12-1043 and the Shaanxi Innovative Research Team Program for Key Science and Technology No.IRT 2013KCT-13