COAGULATION TREATMENT BY Al2 (SO4)3 AND RESIDUAL Al DETERMINATION IN MEDJERDA WATER DAM (TUNISIA)
نویسندگان
چکیده
The effect of pH, agitation speed and coagulant dosage on the coagulation performance of aluminium sulfate with respect to the treatment of Medjerda water was investigated in this paper. The measurement of residual aluminium speciation was also conducted. The evaluation of treatment efficiency of the optimization of coagulation process while was determined by measuring the reduction of turbidity, chemical oxygen demand (COD) and organic matter (OM). The optimal operational conditions are as follows: initial pH value of 6, concentration of aluminium sulfate of 30 mg.L and agitation speed of 80 rpm.
منابع مشابه
Applications of Biological Flocculants (BFs) for Coagulation Treatment in Water Purification: Turbidity Elimination
In this study, coagulation performance by using biological flocculants (BFs; produced from strain Bacillus sp. F6) for turbidity removal was investigated. The results demonstrated that BFs were able to eliminate turbidity from kaolin clay solution over a wide dosage range ( DR = 6–20 mg L ). The removal efficiency with BFs reached 86 % on average, lower than 95 % with Al2(SO4)3 ( Al = 6.5 mg L ...
متن کاملThe application of Polyaluminium Ferric Chloride for Turbidity and Color Removal from Low to Medium Turbid Water
Background & Aims of the Study: Coagulation is an essential process for the removal of fine particulate matter in water treatment. Polyaluminium ferric chloride (PAFC) is a composite inorganic polymer of Aluminium and ferric salt. This study was conducted to find out the optimum coagulation conditions for the removal of turbidity, color and organic matter (UV absorbance) in low to mediu...
متن کاملImproved recovery of ionic liquids from contaminated aqueous streams using aluminium-based salts{
The number of applications involving ionic liquids has dramatically increased in the past few years, and their production and use in a large scale will inevitably lead to their dispersion into water streams (either by wastewater disposal or accidental leakage). Studies on the removal and recovery of ionic liquids from wastewater streams are therefore of crucial importance, yet particularly scar...
متن کاملDetermination of Selected Pesticide Residues from Gilgel Gibe (I) Hydroelectric Dam Reservoir and Its Tributaries, Jimma Zone, Ethiopia
In this study, the level of selected organophosphorus and organochlorine pesticide residues from water samples of Gilgle Gibe (I) hydroelectric dam reservoir and its potential tributaries, Jimma zone, Ethiopia, was determined by gas chromatography-electron capture detector (GC-ECD). Low density based dispersive liquid-liquid microextraction (LD-DLLME) using toluene (as extractant) and acetonitr...
متن کاملDetermination of sulfate in natural and residual waters by turbidimetric flow-injection analysis.
A turbidimetric flow-injection system was developed for the determination of sulfate in natural and residual water samples, with no previous treatment, using spectrophotometric detection. The precipitating agent, 7.0% (w/v) barium chloride solution prepared in 0.10% (w/v) polyvinyl alcohol, was added by using the merging-zones approach. A 100 mg/L sulfate solution in 0.07M nitric acid was mixed...
متن کامل