Investigation on Quality and Quantity of Food industrial Wastewaters and Its Effect on the Wastewater System Operation (case study: Minoo industrial company- Khorramdarreh
Subject Areas : environmental managementAmir Hossein Javid 1 , Amir Hesam Hassani 2 , Somaye Gahvareband 3 *
1 - Associate Professor, Faculty of Environment and Energy, Islamic Azad University of Research and Science
Branch, Tehran,Iran
2 - Associate Professor, Faculty of Environment and Energy, Islamic Azad University of Research and Science
Branch, Tehran
3 - 2-M.Sc. Environment – Environmental Pollutions, Faculty of Environment and Energy, Islamic Azad
University of Research and Science Branch, Tehran
Keywords: Wastewater treatment, food industries, Pollutant,
Abstract :
AbstractBackground: This research was done on wastewater in Minoo industrial Co. to existing concernsabout the quality and quantity of wastewater industries and its effects on human and environment aswell as existence of different contaminant in this kind of wastewater system and lack of informationabout the parameters status and its influence on wastewater system operation.Materials &Methods: For determination of wastewater quality, we took samples from 18 stations ofdifferent wastewater treatment plant and production points during 10 times. The pH, Temperature, Oil& Grease BOD5, COD, TSS about all stations have been determined. The measurement of effluent inentrance point of wastewater treatment plant was done using an installed flow meter. Finally, therelationship between results at different months and stations was done using ANOVA and correlationvariance test in SPSS software.Results : According to the results influent discharge varied in range of 100-150 m3/day, pH, TSS,BOD, COD, Oil & Grease at different stations varied in range of 3.95-10.96, 0-1637.7, 1.9-59674, 6-99600, 0 -1008 mg/l respectively. The removal efficiency of COD, BOD, TSS, Oil & Grease inwastewater treatment plant varied in ranges of 94-99.7%, 99-99.8%,89-98.5%,92.7-100%,respectively.Conclusion: This study shows that changing of seasons , time, type and amount of waste waterproduction effect on pollution and calculation of the BOD5/COD ratio at influent discharge depictedthat by using this type of biological wastewater treatment system is selected properly and can change10-15% used water in factory to the wastewater
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