الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The objectives of the present study were to improve the quality of drainage water for reuse by reducing COD, BOD, TSS, TN, TP, and ammonia, and the removal of odor and detoxification of toxic compounds. To achieve these objectives, three engineered pilot systems were carefully designed for three different drains. The quality and the characters of the wastewater were investigated before and after treatment, and the quality of treated drainage water was compared to law 48 for the year 1982. Three different treatment technologies have been applied for the treatment of the three drains according to the state of each drain. The ElRahawy drain was treated using bio augmented species and a Fenton reaction. Biological process and electrocoagulation were applied for the Bahr El-Baqar drain. Biological treatment only was applied for Al-Sail
drain treatment. Rosetta Branch of the Nile River receives massive quantities of untreated inadequate municipal, industrial and agricultural wastewater
through the El-Rahawy drain. The bio augmented bacterial consortium
that was used to enhance the biological treatment was nonpathogenic and
eco-friendly, and the inoculated dose was 10 gm/m3 /day. The samples
were collected after 24h and after the fourth day of the treatment. The
values of TDS decreased 75.9% after 24 h of Fenton treatment and declined to 66.6% on the fourth day of the treatment. The values of COD
decreased 80% after 24 h and declined to 78.8% after 4 days of Fenton
treatment. The physicochemical and bacteriological parameters were
declined by the treatment time increase. It was found that the bio augmented bacterial strains can grow well and produce more biodegrading enzymes after 24 h. Moreover, the biological treatment
followed by the Fenton reaction is the most suitable solution for ElRahawy drain treatment
For the Bahr El-Baqar drain, the bioactive bacterial strains were
applied followed by the electrocoagulation process. The numbers of bacterial indicators in Bahr El-Baqar drainage wastewater have been
decreased after biological augmentation treatment after 6, 12, and 24 h.
As well, The pH was around 7.2 and 7.4 after biological treatment. Total
suspended solids (TSS) declined from 124 to 88, 75.6, and 63.2 mg/L after 6, 12, and 24 h contact times, respectively. Also, TDS declined from
2410 to 1710, 1470, and 1229 mg/L after 6, 12, and 24 h contact times,
respectively. It is concluded that the quality of treated drainage water was
improved after the combined process (biologically and electrocoagulation
treatment). These technologies are an economical and eco-friendly
approach to be used in drainage water treatment. For Al-Sail drain, biological treatment only was applied. The
average values of TSS, TDS, COD, BOD, TP, TN, Oil&Greas, and Sulfate were investigated before and after adding BIOWISH at distances of 700, 1500, 2500, and 3500 m, and the results were great. Also, coliform density as MPN-index/100ml was studied as a total and as fecal coliform before and after adding BIOWISH, and the results were great. Keywords: drainage water, biological augmentation, Fenton, BiOWiSH,electrocoagulation, COD, BOD, bio-indicator.