title: Evaluation of efficiency of aircraft liquid waste treatment and identification of daily inspection indices: a case study in Changchun, China.
abstract: Evaluation of the efficiency of aircraft liquid waste treatment has previously been conducted to prevent pollution of the environment. The current study aimed to provide a set of practical methods for efficient airport sanitary supervision. Aircraft liquid waste was collected at Longjia International Airport, Changchun from multiple flights. The efficiency of liquid waste treatment as well as the water quality of the wastewater processed via a second-stage wastewater facility were examined by measuring a number of physical, chemical, and biological indices. Our results indicated that treatment solely via resolvable sanitizing liquid was not sufficient. Although the contents of first-class pollutants all met the requirements of the standard criteria, the contents of a number of second-class pollutants did not satisfy these criteria. However, after further treatment via a second-stage wastewater facility installed at the airport, all indices reached second-grade requirements of the discharge standard. We suggest that daily inspection and quarantine indices at airports should include the suspension content, biological oxygen demands after 5 days, chemical oxygen demand total organic carbon content, amino nitrogen content, total phosphorous content, and the level of fecal coliforms.
authors.affiliation: Key Laboratory of Wetl and Ecology and Vegetation Restoration, State Environment Protection Administration/College of Urban and Environmental Sciences, North East Normal University, Changchun, Jilin Province, 130024, China. xujl449@nenu.edu.cn
authors.forename: Jianling
authors.initials: J
authors.lastname: Xu
authors.forename: Jiaqi
authors.initials: J
authors.lastname: Yang
authors.forename: Nan
authors.initials: N
authors.lastname: Zhao
authors.forename: Lianxi
authors.initials: L
authors.lastname: Sheng
authors.forename: Yuanhui
authors.initials: Y
authors.lastname: Zhao
authors.forename: Zhanhui
authors.initials: Z
authors.lastname: Tang
mesh_terms: D000401:Aircraft; D059028:Airports; D002681:China; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater / Q000032:analysis / Q000737:chemistry / Q000706:statistics & numerical data*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D062065:Wastewater; D014874:Water Pollutants, Chemical