The use of DBAF system as A treatment plant for Dairy Industrial wastewater

El Nadi, M.H.*1, El Hefny, Z.A.M.2 & El Hosseiny, O.M,3
Page No. 15-22

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 problem is to
treat the effluent wastewater from one of the JUHAYNA Company factories in 6th of October city
where there is very small available area for the treatment unit. A pilot had been used consisted from
a DBAF unit followed by rapid sand filter and contact tank for chlorination. The target was to reuse
treated water for land scape irrigation by spray system. The pilot plant operated on the design flow
for a period of three months. The system used as new application for the very small area available
in the factory site. 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. In general all effluent results 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]. 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.