Effect of Iron Hydroxide on Phosphate Removal during Anaerobic Digestion of Activated Sludge |
| |
Authors: | V P Stabnikov S T-L Tay D-Kh Tay V N Ivanov |
| |
Institution: | (1) Ukrainian State University of Food Technologies, Kiev, 01017, Ukraine;(2) Nanyang Technological University, Singapore;(3) Ukrainian Branch of the International Center of Scientific Culture, Kiev, Ukraine;(4) Currently at Nanyang Technological University, Singapore |
| |
Abstract: | The addition of iron (III) hydroxide during methanogenic digestion of activated sludge by anaerobic sludge displaying an iron-reducing activity resulted in a microbial reduction of iron (III) with the formation of iron (II), capable of precipitating phosphates. The feasibility of eliminating 66.6 to 99.6% of the dissolved phosphate at initial concentrations of 1000 to 3500 mg PO3-
4/l by adding 6420 mg/l iron (III) hydroxide into a reactor for anaerobic fermentation of activated sludge was analyzed. The optimal ratio of iron (III) added to dissolved phosphate removed (mg) providing a 95% removal amounted to 2 : 1. These results may be used in new technology for anaerobic wastewater treatment with phosphate removal. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|