Phosphate removal from wastewater using red mud

Huang, Weiwei; Wang, Shaobin; Zhu, Zhonghua; Li, Li; Yao, Xiangdong; Rudolph, Victor; Haghseresht, F.

doi:10.1016/j.jhazmat.2008.01.061

Cited by 402 publications

(172 citation statements)

References 27 publications

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“…Phosphorus adsorption capacity of slagCSH after 24 h of adsorption was determined to be 53.11 P-mg/g, which was 73 times greater than that of BF slag. This phosphorus adsorption capacity is markedly higher than those previously reported on solid adsorbents derived from minerals and industrial wastes, [9][10][11][12][13][14] demonstrating its excellent adsorption ability toward phosphate ions in water. PureCSH as a reference sample exhibited a higher phosphorus adsorption capacity (86.23 P-mg/g) than slagCSH irrespective of its subpar structural properties (S BET = 154 m 2 /g, V total = 0.62 cm 3 /g).…”

Section: Adsorption Of Phosphatecontrasting

confidence: 53%

“…Adsorption using high-volume industrial wastes has attracted increasing concerns as an alternative phosphorus recovery process, because of simple manipulation, less sludge production and economic competitiveness. To date, various kinds of industrial wastes were examined as low-cost phosphorus adsorbent, including fly ash, 9,10) red mud, 11) oil-shale ash, 12) acid mine drainage sludge, 13) and dolomite; 14) however, the adsorption capacities of these adsorbents were considerably low.…”

Section: )mentioning

confidence: 99%

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Phosphate Removal from Aqueous Solutions Using Calcium Silicate Hydrate Prepared from Blast Furnace Slag

Kuwahara

Yamashita

2017

ISIJ Int.

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Section: Adsorption Of Phosphatecontrasting

confidence: 53%

Section: )mentioning

confidence: 99%

Phosphate Removal from Aqueous Solutions Using Calcium Silicate Hydrate Prepared from Blast Furnace Slag

Kuwahara

Yamashita

2017

ISIJ Int.

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“…More recently some researchers studied the feasibility of phosphate adsorption from phosphate-rich streams. The various adsorbents used include industrial materials and byproducts (i.e., iron oxide tailings [5], fly ash [6], blast furnace slag [7] and red mud [8]), natural or synthetic minerals (i.e., goethite [9,10], dolomite [11] and alunite [12]), metal oxide/hydroxide (i.e., aluminum oxide, iron oxide, zirconium oxide [13] and zirconium hydroxide [14]) and other materials (i.e., ion exchange resin [15]). …”

Section: Introductionmentioning

confidence: 99%

Phosphate adsorption from sewage sludge filtrate using zinc–aluminum layered double hydroxides

Cheng

Huang

Wang

et al. 2009

Journal of Hazardous Materials

198

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a b s t r a c tA series of layered double hydroxides (LDHs) with different metal cations were synthesized to remove phosphate in waste sludge filtrate from a municipal wastewater treatment plant for phosphorus recovery and to help control eutrophication. The highest phosphate adsorption capacity was obtained by using Zn-Al-2-300, that is LDHs with Zn/Al molar ratio of 2 and calcined at 300 • C for 4 h. Circumneutral and mildly alkaline waters appeared suitable for the possible application of Zn-Al LDHs due to the amphoteric nature of aluminum hydroxide. Phosphate adsorption from the sludge filtrate by the LDHs followed pseudo-second-order kinetics, and the adsorption capacity at equilibrium was determined to be ∼50 mg P/g. Adsorption isotherms showed that phosphate uptake in this study was an endothermic process and had a good fit with a Langmuir-type model. The absorbed phosphate can be effectively desorbed (more than 80%) from LDHs particles by a 5 wt% NaOH solution. The regeneration rate of used LDHs was ∼60% after six cycles of adsorption-desorption-regeneration.

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“…Huang et al [26] and Yue et al [27] have demonstrated that pH i had a great influence on the removal of phosphorus from aqueous solution. The effect of pH i on the removal of phosphorus was observed by adjusting pH of the solution using 1 mol/L HC1 or 1 mol/L NaOH.…”

Section: Effect Of the Phmentioning

confidence: 99%

Phosphorus removal from domestic sewage by adsorption combined photocatalytic reduction with red mud

Zeng¹,

Xia²,

Dandan³

et al. 2013

Desalination and Water Treatment

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A B S T R A C TPhosphorus removal from domestic sewage by adsorption combined photocatalytic reduction with raw and modified red mud (RM) was studied in this paper. The results indicated that RM dosage, reaction time, stirring rate, phosphorus concentration, and initial pH of solution (pH i ) were the main factors to effect on phosphorus removal. It was found that the phosphorus removal efficiency of modified red mud (RM-m) under the photocatalytic test conditions was higher than only by adsorption process, while raw red mud (RM-raw) showed no significant difference under the two conditions. With initial phosphorus concentration 8.26 mg/L, reaction time 60 min, stirring rate 200 r/min, under the adsorption and photocatalytic test conditions, the optimum dosage and pH i of both RM-raw and RM-m were 1.8 g/L and 4.0, respectively, and the corresponding phosphorus removal of RM-raw and RM-m were 90.18 and 91.70%, respectively. The optimum amount of RM-m under the two conditions were 1.6 and 1.5 g/L, respectively, the optimal pH i 3.0, correspondingly, the phosphorus removal could reach high up to 94.30 and 99.96%, respectively.

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Phosphate removal from wastewater using red mud

Cited by 402 publications

References 27 publications

Phosphate Removal from Aqueous Solutions Using Calcium Silicate Hydrate Prepared from Blast Furnace Slag

Phosphate Removal from Aqueous Solutions Using Calcium Silicate Hydrate Prepared from Blast Furnace Slag

Phosphate adsorption from sewage sludge filtrate using zinc–aluminum layered double hydroxides

Phosphorus removal from domestic sewage by adsorption combined photocatalytic reduction with red mud

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