| contributor author | Janet G. Hering | |
| contributor author | Pen-Yuan Chen | |
| contributor author | Jennifer A. Wilkie | |
| contributor author | Menachem Elimelech | |
| date accessioned | 2017-05-08T21:21:35Z | |
| date available | 2017-05-08T21:21:35Z | |
| date copyright | August 1997 | |
| date issued | 1997 | |
| identifier other | %28asce%290733-9372%281997%29123%3A8%28800%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/48375 | |
| description abstract | The efficiency of arsenic removal from source waters and artificial freshwaters during coagulation with ferric chloride and alum was examined in bench-scale studies. Arsenic(V) removal by either ferric chloride or alum was relatively insensitive to variations in source water composition below pH 8. At pH 8 and 9, the efficiency of arsenic(V) removal by ferric chloride was decreased in the presence of natural organic matter. The pH range for arsenic(V) removal with alum was more restricted than with ferric chloride. For source waters spiked with 20 μg/L arsenic(V), final dissolved arsenic(V) concentrations in the product water of less than 2 μg/L were achieved with both coagulants at neutral pH. Removal of arsenic(III) from source waters by ferric chloride was both less efficient and more strongly influenced by source water composition than removal of arsenic(V). The presence of sulfate (at pH 4 and 5) and natural organic matter (at pH 4 through 9) adversely affected the efficiency of arsenic(III) removal by ferric chloride. Arsenic(III) could not be removed from source waters by coagulation with alum. | |
| publisher | American Society of Civil Engineers | |
| title | Arsenic Removal from Drinking Water during Coagulation | |
| type | Journal Paper | |
| journal volume | 123 | |
| journal issue | 8 | |
| journal title | Journal of Environmental Engineering | |
| identifier doi | 10.1061/(ASCE)0733-9372(1997)123:8(800) | |
| tree | Journal of Environmental Engineering:;1997:;Volume ( 123 ):;issue: 008 | |
| contenttype | Fulltext | |