| Title: | The implementation of data reconciliation for evaluating a full-scale petrochemical wastewater treatment plant |
| Author(s): | Behnami A; Shakerkhatibi M; Dehghanzadeh R; Benis KZ; Derafshi S; Fatehifar E; |
| Address: | "Department of Environmental Health Engineering, School of Health, Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran. Department of Environmental Health Engineering, School of Health, Tabriz University of Medical Sciences, Tabriz, Postal Code: 5166614711, Iran. shakerkhatibi@yahoo.com. Department of Environmental Health Engineering, School of Health, Tabriz University of Medical Sciences, Tabriz, Postal Code: 5166614711, Iran. Faculty of Chemical Engineering, Sahand University of Technology, Tabriz, Iran. Office of Health Safety and Environment, Tabriz petrochemical CO., Tabriz, Iran" |
| Journal Title: | Environ Sci Pollut Res Int |
| DOI: | 10.1007/s11356-016-7484-5 |
| ISSN/ISBN: | 1614-7499 (Electronic) 0944-1344 (Linking) |
| Abstract: | "Data reconciliation and mass balance analysis were conducted for the first time to improve the data obtained from a petrochemical wastewater treatment plant (WWTP), and the results were applied to evaluate the performance of the plant. Daily average values for 209 days from the inlet and outlet of the plant obtained from WWTP documentation center along with the results of four sampling runs in this work were used for data reconciliation and performance evaluation of the plant. Results showed that standard deviation and relative errors in the balanced data of each measurement decreased, especially for the process wastewater from 24.5 to 8.6 % for flow and 24.5 to 1.5 % for chemical oxygen demand (COD). The errors of measured data were -137 m(3)/day (-4.41 %) and 281 kg/day (7.92 %) for flow and COD, respectively. According to the balanced data, the removal rates of COD and 5-day biological oxygen demand (BOD(5)) through the aeration unit were equal to 37 and 46 %, respectively. In addition, the COD and BOD(5) concentrations were reduced by about 61.9 % (2137 kg/day) and 78.1 % (1976 kg/day), respectively, prior to the biological process. At the same time, the removal rates of benzene, toluene, and styrene were 56, 38, and 69 %, respectively. The results revealed that about 40 % of influent benzene (75.5 kg/day) is emitted to the ambient air at the overhead of the equalization basin. It can be concluded that the volatilization of organic compounds is the basic mechanism for the removal of volatile organic compounds (VOCs) and it corresponds to the main part of total COD removal from the WWTP" |
| Keywords: | "Benzene/chemistry Biological Oxygen Demand Analysis Data Accuracy Volatile Organic Compounds/*chemistry *Waste Disposal Facilities Waste Disposal, Fluid/methods *Wastewater/chemistry *Water Purification *Activated sludge *Data reconciliation *Performance;" |
| Notes: | "MedlineBehnami, Ali Shakerkhatibi, Mohammad Dehghanzadeh, Reza Benis, Khaled Zoroufchi Derafshi, Siavash Fatehifar, Esmaeil eng Evaluation Study Germany 2016/08/26 Environ Sci Pollut Res Int. 2016 Nov; 23(22):22586-22595. doi: 10.1007/s11356-016-7484-5. Epub 2016 Aug 24" |
