Ammonium removal from digested sludge liquors using ion exchange

Thornton, Arthur; Pearce, P.; Parsons, Simon A.

doi:10.1016/j.watres.2006.10.021

Cited by 96 publications

(52 citation statements)

References 18 publications

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“…The similar conclusion has been supported by some previous studies about using zeolite or activated carbon to adsorb amino salt [42][43][44][45] .…”

Section: Ph Valuesupporting

confidence: 86%

The Review on Adsorption and Removing Ammonia Nitrogen with Biochar on its Mechanism

Liang

Huang

et al. 2016

MATEC Web Conf.

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.The study on decreasing ammonia-nitrogen has received great attention in recent years. This paper summarizes the adsorption mechanism and the influencing factors. Thus, the feasibility of adsorption using biochar has been indicated. A few issues were proposed for the further study: the industrial application research on treatment, modification method for improving the efficiency of adsorption, desorption and regeneration of biochar ,model of adsorption mechanism, the physical and chemical properties of soil .

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“…The similar conclusion has been supported by some previous studies about using zeolite or activated carbon to adsorb amino salt [42][43][44][45] .…”

Section: Ph Valuesupporting

confidence: 86%

The Review on Adsorption and Removing Ammonia Nitrogen with Biochar on its Mechanism

Liang

Huang

et al. 2016

MATEC Web Conf.

View full text Add to dashboard Cite

show abstract

“…Commonly, nitrogen removal is achieved by a biological-, nitrification-denitrification process, where ammonium (NH 4 + ) is transformed first to nitrite, then to nitrate, and finally to nitrogen gas [1]. However, since biological methods do not respond well to shock loads of ammonia, unacceptable peaks over the discharging levels may frequently appear in the effluent NH 4 + concentrations [2].…”

Section: Introductionmentioning

confidence: 99%

Ammonium removal from aqueous solutions by using natural Chinese (Chende) zeolite as adsorbent

Huang

Xiao

Yan

et al. 2010

Journal of Hazardous Materials

388

159

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“…The increase of nitrogen compounds would accelerate eutrophication of rivers and lakes and the depletion of dissolved oxygen. Commonly, the reported methods for the removal of ammonium ions contain air stripping, ion exchange and biological nitrification-denitrification [1][2][3]. Ion exchange has attracted much attention due to the low cost and relative simplicity of application and operation.…”

Section: Introductionmentioning

confidence: 99%

“…Zeolite has been researched for decades for the removal of ammonium ions because of large specific surface area, high cation exchange capacity (CEC) and great affinity for NH þ 4 [4]. In previous research, the utilization of zeolite for the removal of NH þ 4 has proven to be a competitive and effective method [1,3,[5][6][7][8][9][10][11][12][13][14]. In addition, zeolite derived from different base sources has been utilized for the removal of ammonium.…”

Section: Introductionmentioning

confidence: 99%

Effect of Fe3O4 addition on removal of ammonium by zeolite NaA

Liu

Peng

Lin

et al. 2013

Journal of Colloid and Interface Science

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Magnetic zeolite NaA with different Fe(3)O(4) loadings was prepared by hydrothermal synthesis based on metakaolin and Fe(3)O(4). The effect of added Fe(3)O(4) on the removal of ammonium by zeolite NaA was investigated by varying the Fe(3)O(4) loading, pH, adsorption temperature, initial concentration, adsorption time. Langmuir, Freundlich, and pseudo-second-order modeling were used to describe the nature and mechanism of ammonium ion exchange using both zeolite and magnetic zeolite. Thermodynamic parameters such as change in Gibbs free energy, enthalpy and entropy were calculated. The results show that all the selected factors affect the ammonium ion exchange by zeolite and magnetic zeolite, however, the added Fe(3)O(4) apparently does not affect the ion exchange performance of zeolite to the ammonium ion. Freundlich model provides a better description of the adsorption process than Langmuir model. Moreover, kinetic analysis indicates the exchange of ammonium on the two materials follows a pseudo-second-order model. Thermodynamic analysis makes it clear that the adsorption process of ammonium is spontaneous and exothermic. Regardless of kinetic or thermodynamic analysis, all the results suggest that no considerable effect on the adsorption of the ammonium ion by zeolite is found after the addition of Fe(3)O(4). According to the results, magnetic zeolite NaA can be used for the removal of ammonium due to the good adsorption performance and easy separation method from aqueous solution.

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Ammonium removal from digested sludge liquors using ion exchange

Cited by 96 publications

References 18 publications

The Review on Adsorption and Removing Ammonia Nitrogen with Biochar on its Mechanism

The Review on Adsorption and Removing Ammonia Nitrogen with Biochar on its Mechanism

Ammonium removal from aqueous solutions by using natural Chinese (Chende) zeolite as adsorbent

Effect of Fe3O4 addition on removal of ammonium by zeolite NaA

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