Comparison between Two Techniques for Dairy Industrial Wastewater Treatment Plant

The dairy industry is a major enterprise in Egypt occupying a significant place in food supply. Its wastewater is a huge environmental problem that needs a special treatment. Our study covers a comparison between two techniques for wastewater treatment for one of JUHAYNA factories in 6th of October city, with a very small land availability and the high removal required for reuse effluent for landscape purposes. A pilot had been used consisted from two parallel lines. First line simulated the DBAF system plant and the second line simulated the DAF + SBR plant and operated for a period of three months. From the study results it can be seen that the applied DBAF system that proposed to be made give the ability to meet the design flow and loads with high effluent criteria for BOD, COD, TDS, pH & TSS parameters. Also, it can be seen that the applied DAF + SBR system that applied gives the ability to meet the design flow and loads with high effluent criteria for BOD, COD, TDS, pH & TSS parameters. In general all effluent results with DBAF system are more than enough for the drainage to the city sewerage system and meet the legal requirements for reuse for irrigation for landscape green areas due to the Egyptian environmental laws [1]. Also the system takes very small area and fit inside the available area inside the factory with no erection, operation or maintenance problems due to the shortage of area. Also, all effluent results with DAF+SBR system are more than enough for the drainage to the city sewerage system and meet the legal requirements for reuse for irrigation for Jungle trees due to the Egyptian environmental laws [1]. In the other hand the system takes a small area but not fit inside the available area inside the factory that may cause erection, operation or maintenance problems due to the shortage of area