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- Title
Evaluating some Quality Parameters of a Surface Water Source by Applying Simple Treatment Processes.
- Authors
EL MAHDY, Cristina; POPESCU, Silvana; Anamaria, Blaga Petrean; BORDA, Cristin
- Abstract
The purpose of the research was to identify the most convenient treatment applied to a surface water source which is permanently under the influence of contamination, in order to reduce organic matter, temporary hardness and TNG/ml water. Following the sedimentation process, temporary hardness values are close to those of the control samples (raw water) but, reductions and extremely significant differences (*** P <0.001) were found after coagulation. The same, extremely significant differences are found in the CCOMn parameter after the same process, coagulation. Applying just a single treatment like: sedimentation, coagulation of raw water without being followed by disinfection does not guarantee the removal or reduction of the total number of germs in water. Disinfection with UV dose (3.40-3.88 mj/cm2) of control samples indicates a significant reduction in bacterial load depending on exposure time, with the best values obtained at the 30 minute exposure. The same positive results were obtained from samples subjected to sedimentation where, compared to the initial values (4159.2±1860.0 TNG/ml water), bacterial load is reduced by 78-99.82%. In 60% of samples coagulated and after that exposed to 30 minutes of UV irradiation, was found 0 TNG / ml water. In conclusion, the best option for reducing TNG/ml water is coagulation using alum, followed by UV disinfection for 30 minutes.
- Subjects
WATER; THERAPEUTICS; SURFACE preparation; BLOOD coagulation; SEDIMENTATION &; deposition; DISINFECTION by-product
- Publication
Bulletin of the University of Agricultural Sciences & Veterinary Medicine Cluj-Napoca. Animal Science & Biotechnologies, 2019, Vol 76, Issue 1, p21
- ISSN
1843-5262
- Publication type
Article
- DOI
10.15835/buasvmcn-asb:2018-0012