| Journal: | Ciencia (Maracaibo) |
| Database: | PERIÓDICA |
| System number: | 000460948 |
| ISSN: | 1315-2076 |
| Authors: | Santiago, Daniel1 Bracho, Nibis1 Tapia, Isabel1 Saules, Luisa1 Trujillo, Alberto1 |
| Institutions: | 1Universidad del Zulia, Facultad de Ingeniería, Maracaibo, Zulia. Venezuela |
| Year: | 2012 |
| Season: | Ene-Mar |
| Volumen: | 20 |
| Number: | 1 |
| Pages: | 43-51 |
| Country: | Venezuela |
| Language: | Español |
| Document type: | Artículo |
| Approach: | Experimental |
| Spanish abstract | Se realizó un estudio en tres plantas de potabilización en el estado Zulia-Venezuela eva - luando el proceso de coagulación, floculación y sedimentación, en diferentes tipos de aguas: superficial (planta C) y dos subterráneas (Planta B y Bajo Grande), con la finalidad de comparar la eficiencia del cloruro férrico (CF) vs las sales de aluminio (sulfato de aluminio (SA) y policloru - ro de aluminio (PAC)). Se utilizó la prueba de Jarra, para simular el proceso de clarificación y obtener las dosis óptimas de los coagulantes. En cada prueba, se determinó pH, alcalinidad, turbidez, color y características del floc (tamaño, tiempo de aparición y sedimentación). En el agua superficial, la dosis optima del CF es mucho mayor (40 mg/L) a la de sales de aluminio (SA= 16 mg/L y P |
| English abstract | A study was conducted in three treatment plants in Zulia state, Venezuela undergoing the process of coagulation, flocculation and sedimentation, in different types of water: surface (Plant C) and two underground (Plant B and Bajo Grande), in order to compare the efficiency of ferric chloride (FC) vs. aluminum salts (aluminum sulfate (AS) and poly aluminum (PAC)). The jar test was used to simulate the process of clarification and to obtain the optimum doses of coagulants. In each test, pH, alkalinity, turbidity, color and floc characteristics (size, appearan - ce time and settling time) were determined. In surface water, the optimum dose of CF is much higher (40 mg /L) than aluminum salts (SA= 16 mg /L PAC= 8mg/ L). A similar case occurred with groundwater. The disadvantage of ferric chloride is that it brings color into the water, re - quires pH adjustment and high doses compared to aluminum salts. It produces a more expen - sive treatment. However, its advantage is the formation of a heavy floc. Aluminum salts perfor - mance a natural pH of the water; produce a better quality (3 CU and 3 NTU) at lower doses |
| Disciplines: | Química |
| Keyword: | Química analítica, Cloruro férrico, Coagulantes, FeCl3, Plantas de tratamiento de aguas, Sales de aluminio, Tratamiento de aguas, Venezuela |
| Keyword: | Analytical chemistry, Aluminum salts, Coagulants, FeCl3, Ferric chloride, Venezuela, Water treatment, Water treatment plants |
| Full text: | https://produccioncientificaluz.org/index.php/ciencia/article/view/10036/10023 |
