Impact of iron oxide (rust) on the performance of calcium phosphate scale inhibitors for industrial water systems
نویسنده
چکیده
The inhibition of calcium phosphate precipitation by homoand copolymers containing different functional groups has been examined in aqueous solution. It has been found that polymer performance as calcium phosphate inhibitor depends upon polymer architecture. The influence of iron oxide (Fe2O3, rust) on the performance of calcium phosphate inhibitors has also been investigated. Results show that addition of small amount (10 mg to 100 mg) of Fe2O3 to the calcium phosphate supersaturated solution exhibits marked antagonistic effect on inhibitor performance. Various mechanism(s) have been proposed to explain the negative impact of Fe2O3 on inhibitor performance.
منابع مشابه
An In-depth Study of Calcium Carbonate Scale Formation and Inhibition
A fundamental study of scale formation of calcium carbonate (CaCO3) for producing oil wells has been carried out. This article presents the study of the prediction of salt deposition in two different synthetic formation waters and investigates the effects of temperature and pressure on calcium carbonate precipitation. The dependence of the induction period of the precipitation of calcium carbon...
متن کاملEffect of pulsed current densities on co-electrodeposition of Graphene Oxide/ Calcium-Phosphate coatings and their biocompatibility
In this study, calcium-phosphate (Ca-P) and graphene oxide (GO)/ calcium-phosphate (Ca-P) coatings were electrodeposited with different pulsed current densities on TiO2 nanotubes. Results showed that the co-electrodeposition rate in the presence of GO, especially at low current densities of 2 and 5 mA/cm2, significantly decreased. This might be due to the large size of GO sheets as compared to ...
متن کاملSynthesis of calcium carbide-derived carbon by mechanochemical reaction of calcium carbide with sulfur, iron sulfide and zinc oxide
In the present work, we report a novel design and preparation for the mechanochemical synthesis of calcium carbide-derived carbon (CaC2-CDC) at ambient temperature. Thermodynamic calculations confirmed the possibility of calcium carbide-derived carbon formation by the reaction of calcium carbide with sulfur, iron sulfide and zinc oxide at ambient temperature. The CDCs were synthesized by the ba...
متن کاملEffect of Graphene Oxide Nanoparticles Addition on Mechanical and Biological Properties of Calcium Phosphate Cement
In the present study, we have evaluated the effects of graphene oxide (GO) addition on the physical-mechanical-biological properties of calcium phosphate cement (CPC). The in vitro cellular responses of MG63 and in vivo tissue responses after the implantation of CPC/GO in parietal bone defects of wistar rats were also investigated. The brushite calcium phosphate cements were prepared by mixi...
متن کاملPhosphate imposed limitations on biological reduction and alteration of ferrihydrite.
Biogeochemical transformation (inclusive of dissolution) of iron (hydr)oxides resulting from dissimilatory reduction has a pronounced impact on the fate and transport of nutrients and contaminants in subsurface environments. Despite the reactivity noted for pristine (unreacted) minerals, iron (hydr)oxides within native environments will likely have a different reactivity owing in part to change...
متن کامل