Effect of characteristics of activated carbon on removal of bromate

Bromate removal from water by granular ferric hydroxide (GFH)

“…Thus, an efficient technology is required for bromate removal from drinking water. There are some chemical and physical methods for the removal of bromate from drinking water such as reduction using zero-valent iron (Fe 0 ) [6,7], reduction with Fe 2+ [8,9], and SO 3 2− [9], adsorption and reduction by granular activated carbon [10][11][12], ionic exchange [13,14], filtering by reverse osmosis membrane [15], UV irradiation [16], high-energy electron beam (HEEB) irradiation [17]. The applicability of most of these methods on commercial scale is limited due to high operational and maintenance costs, secondary pollution and complicated procedure involved in the treatment.…”

“…1) therefore, the equilibration period of 60 min was selected for further experiments. The results indicate that bromate shows fast kinetics onto GFH compared to the other conventional adsorbents, such as Granular Activated Carbons (GACs) and Powdered Activated Carbons (PACs), which show longer equilibration time from 4 h to 20 h [8,12,17].…”

Study of CaCl2 as an agent that modifies the surface of activated carbon used in sorption/treatment cycles for nitrate removal

“…The technologies that involve sorption have proven to be successful at removing different types of inorganic anions, as shown by Wajima et al (2009);Liao and Shi (2005) and Viswanathan and Meenakshi (2010) in the removal of fluorine, Namasivayam and Sangeetha (2005) in nitrate removal, Huang and Cheng (2008) and Bhatnagar et al (2009) in the re-moval of bromate, Parette and Cannon (2005), Xie et al (2010) and Mahmudor and Huang (2010) in the removal of perchlorate. All these studies used aqueous solutions and various materials as sorbents.…”

Ozonation catalyzed by the raw bauxite for the degradation of 2,4,6-trichloroanisole in drinking water

“…Taste and odor compounds are considered to be susceptible for the removal by • OH [11]. Although ozonation is an effective treatment option for the removal of taste and odor compounds, the formation of the hazardous by-product bromate must be controlled [12]. To overcome this drawback, ozonation processes are being modified in order to increase their oxidizing capability.…”