Assessment of biological augmentation technology of hazardous pollutants existing in drainage water in Bahr El-Baqar drain, Egypt

Abstract

T HE objectives of the present study were to improve the quality of drainage water for reuse through the reduction of COD, BOD, TSS, TN, TP, and ammonia, also the removal of odor and detoxification of toxic compounds. The designed system for the treatment of drainage wastewater collected from Bahr El-Baqar drains was performed. The bioactive bacterial strains were applied in this system and followed by the electrocoagulation process. The phyicochemical and biological parameters were estimated for raw and treated drainage wastewater and compare the quality of treated drainage water according to law 1948. The results acquired pointed out the level of physicochemical items, and 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 (Table 3

Investigating and Managing the Impact of Using Untreated Wastewater for Irrigation on the Groundwater Quality in Arid and Semi-Arid Regions

“…The water levels of the main drain are assigned below the ground surface (G.S) with range 2.5–2.8 m. The two rivers were allocated with average water levels ranges between 0.5–0.8 m and below the G.S and the bed levels between 3–3.30 m below G.S. In the first layer of the model the rate of annual recharge is assigned to 365 mm/year, while a contaminant for untreated wastewater recharge of Chemical Oxygen Demand (COD) is used in agricultural irrigation with a constant concentration equals to 97.4 mg/L [ 29 ].…”

Investigating the effect of using treated and untreated wastewater in irrigation on groundwater quality

“…Chemical oxygen demand (COD) was identified as a contaminant in agricultural irrigation water, where it was used to recharge untreated sewage water with a constant concentration of 97.4 milligram per liter (mg/l) in Bahr El-Baqar. [17]. Allocating hydraulic parameters to the research area is based on previous experiments and mathematical estimates including horizontal and vertical hydraulic conductivity K x , K y = 5, K z = 0.5 m/d, specific yield S y = 0.2, specific storage S s = 27*10 -7 1/m, effective porosity n eff = 20%, total porosity n total = 35.…”

Bioaugmentation and advanced oxidation process for organic and inorganic pollutants removal and pathogenic bacteria inactivation,s for El-Rahawy Drain, Egypt

“…They found that coliform counts in control increased between 120% after 24 h and 800% after 7 days, and these studies attributed this increase to the absence of augmented bacteria that could have antagonistic effects against the coliforms group [31,32]. The water quality standards specified in Egyptian law 48/1982 for COD, BOD, TDS, DO, turbidity, and TSS are as following, ≤30 mg/L, ≤20 mg/L, ≤500 mg/L, ≥5 mg/L, ≤50 mg/L, and ≤20 mg/L, respectively [33,34]. In this study, the effluent water quality after biological treatment and Fenton reaction do not meet the applicable water quality standards specified in Egyptian law 48/1982 in concerning to COD, BOD, and TDS.…”