Influence of organic carbon and microorganisms on iron and sulfide concentrations in groundwater
No Thumbnail Available
Meeting name
Sponsors
Date
Journal Title
Format
Technical Report
Abstract
This study was undertaken to evaluate the feasibility of using a fluidized sand bed to coprecipitate the insoluble phosphorus complex of hydroxylapatite with calcium carbonate on the surface of sand grains to form dry chemical pebbles. It was found that the operation of such a new technique was simple and it required a contact time of only 5 min. At pH 10.0, the concentration of P in raw sewage was reduced from 8 mg/L to about 3 mg/L. Also, about 50-70 percent of calcium carbonate was able to plate out on the surface of sand grains. If the influent was allowed to settle for 1 hr, the residual P was further reduced to 1 mg/L, and most of the remaining suspended solids could settle out effectively.
This material is based upon work supported by the U.S. Geological Survey and the Missouri Water Center under the Grant/Cooperative Agreement.
The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the opinions or policies of the U.S. Geological Survey or Missouri Water Center. Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey or Missouri Water Center.
This material is based upon work supported by the U.S. Geological Survey and the Missouri Water Center under the Grant/Cooperative Agreement.
The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the opinions or policies of the U.S. Geological Survey or Missouri Water Center. Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey or Missouri Water Center.