Hydrous ferric oxide as an adsorbent in water treatment
Hydrous ferric oxide as an adsorbent in water treatment: Part 1. Preparation and physical characterization The preparation and physical characterization of granular ferric hydroxide as an adsorber of arsenic and other ionic species from aqueous solutions is discussed. The aim of the work is the preparation of granular ferric hydroxide in
Hydrous ferric oxide as an adsorbent in water treatment: Part 2. Adsorption studies. Author links open overlay Abstract. The mechanism of arsenic adsorption onto hydrous granular ferric oxide is discussed in detail. eluted and recycled and moreover, the release of iron from the adsorbent was found to be negligible under appropriate
Hydrous ferric oxide as an adsorbent in water treatment
There are well known toxicological effects associated with several drinking water contaminants. For example, chlorination by-products can cause bladder and colon cancer (Cantor, 1997).An elevated quantity of nitrate in potable water can cause a blood disorder commonly referred to as blue baby syndrome or methaemoglobinaemia (Sorg, 1978a).Studies in Spain and the UK have also shown a link
Hydrous ferric oxide as an adsorbent in water treatment: Part 1. Preparation and physical characterization The preparation and physical characterization of granular ferric hydroxide as an adsorber of arsenic and other ionic species from aqueous solutions is discussed. The use of granular ferric hydroxide in water treatment is distinctly
Hydrous ferric oxide as an adsorbent in water treatment
Hydrous ferric oxide as an adsorbent in water treatment: Part 2. Adsorption studies Article in Process Safety and Environmental Protection 86(1):11-20 · January 2008 with 49 Reads
Hydrous ferric oxide as an adsorbent in water treatment: Part 1. Preparation and physical characterization Article in Process Safety and Environmental Protection 86(1):1–9 · January 2008
Hydrous ferric oxide as an adsorbent in water treatment
Hydrous ferric oxide as an adsorbent in water treatment: Part 3: Batch and mini-column adsorption of arsenic, phosphorus, fluorine and cadmium ions
(2008). ARSENATE SORPTION BY HYDROUS FERRIC OXIDE INCORPORATED ONTO GRANULAR ACTIVATED CARBON WITH PHENOL FORMALDEHYDE RESINS COATING. Environmental Technology: Vol. 29, No. 4, pp. 401-411.
Removal of Tetracycline by Hydrous Ferric Oxide
The removal of tetracycline (TC) from solution is an important environmental issue. Here we prepared an adsorbent hydrous ferric oxide (HFO) by adjusting a FeCl3·6H2O solution to neutral pH. HFO was characterized by a surface area analyzer, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS), and was used to remove TC from solution.
Hydrous ferric oxide (HFO) is most effective with high treatment capacity on arsenate [As(V)] sorption although its transformation and aggregation nature need further improvement. Here, HFO nanoparticles with carboxymethyl cellulose (CMC) or starch as modifier was synthesized for the purpose of stability improvement and As(V) removal from water.
DSpace at VNU: Sugarcane bagasse treated with hydrous
DSpace at VNU: Sugarcane bagasse treated with hydrous ferric oxide as a potential adsorbent for the removal of As(V) from aqueous solutions . 6 149 0.
Adsorption kinetic experiments . Test water at 0.5 mmol/L Sb(III) or Sb(V) was added into a 1000-mL glass vessel with magnetic agitation (140 rpm), and 10 mL solution with in-situ FeOxHy suspension was dosed immediately after mixing Fe 3+ and OH − solutions to get the desired dose of 40 mg/L as Fe. The pH adjustment was preceded at intervals by 0.5 M HCl and/or NaOH to achieve a stable pH of
- What is PHPA mud?
- [Drilling Fluids] A class of water muds that use partially hydrolyzed polyacrylamide (PHPA) as a functional additive, either to control wellbore shales or to extend bentonite clay in a low-solids mud. As a shale -control mud, PHPA is believed to seal microfractures and coat shale surfaces with a film that retards dispersion and disintegration.
- Is PHPA a shale control mud?
- As a shale -control mud, PHPA is believed to seal microfractures and coat shale surfaces with a film that retards dispersion and disintegration. KCl is used as a shale inhibitor in most PHPA mud designs.
- Can you drill cement with PHPA mud?
- Do not drill cement with PHPA muds, unless the system will be replaced after drilling out, because PHPA muds are sensitive to high pH, especially in the presence of high calcium levels. If drilling cement with a PHPA system is unavoidable, pretreat the system with 0.251bmlbbl [0.7 kg/m3] sodium bicarbonate.
- What is partially hydrolyzed polyacrylamide (PHPA)?
- Partially hydrolyzed polyacrylamide (PHPA) is a widely used polymer in the oil and gas industry due to its lesser cost and good water solubility. PHPA is used as a functional additive in water-based drilling fluids. The PHPA mud system stabilizes shale formations and influences cuttings and wellbore stability.
