Ballasted Clarification in Conventional Municipal Wastewater Treatment in Iraq
| Autor: | Khairi Resan Kalash, Mohammed A. Abdul-Majeed, Raad A. Ali, Inmar N.Ghazi |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Engineering and Technology Journal, Vol 32, Iss 3, Pp 139-147 (2014) |
| Druh dokumentu: | article |
| ISSN: | 1681-6900 2412-0758 |
| DOI: | 10.30684/etj.32.3A.20 |
| Popis: | In this work a practical comparison has been done between the conventional coagulation and flocculation method and Ballast flocculation as a primary settling procedure that was used to treat sewage water in Al-Zaafraniya apartment complex. The results show that the conventional method using alum as coagulant 75 mg/L, gives removal efficiencies of Total suspended solid TSS 50-60%, BOD 30-40% and total phosphorus TP 40% at total time of 60 minutes. While the Ballast flocculation method using alum 75 mg/L , polyelectrolyte 1.5 mg/L and sand 10 mg/l (70μm) gives removal efficiencies of TSS 50-70%, BOD 30-40% and TP 68% at total time less than 22 minutes. From the above, a conclusion can be noticed that the Ballast flocculation method means reduction in equipment size and footprint area more over efficiency in total phosphorus removal. |
| Databáze: | Directory of Open Access Journals |
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