Electrodialytic removal of fluoride and calcium ions to recover phosphate from fertilizer industry wastewater

Bagastyo, Arseto Yekti; Anggrainy, Anita Dwi; Nindita, Cintya Seruni; Warmadewanthi,

doi:10.1016/j.serj.2017.06.002

Cited by 56 publications

(17 citation statements)

References 31 publications

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“…Both reactors were also equipped with carbon anode and stainless steel cathode. The electrodes were connected to DC power supply (Dekko PS -305Q) at a constant current of 0.75 A as already obtained from the previous study (Bagastyo et al, 2017). The wastewater was pumped through the first reactor to recover the ammonium and phosphate ions, and the effluent then flowed to the second reactor to recover the residual ions from the first reactor.…”

Section: Electrodialysis Reactormentioning

confidence: 99%

Electrodialytic Recovery of Ammonium and Phosphate Ions in Fertilizer Industry Wastewater by Using a Continuous-Flow Reactor

Hikmawati¹,

Bagastyo²,

Warmadewanthi³

2019

J. Ecol. Eng.

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The wastewater stream generated from fertilizer industries generally contains high concentrations of ammonium and phosphate ions. This stream offers an opportunity for the electrodialytic process to treat and recover these concentrated nutrients before releasing them to the environment. Therefore, this study aims at evaluating the performance of a continuous-flow electrodialysis reactor for ionic recovery of ammonium and phosphate. The results show that the pH and phosphate mass loading affected the overall performance of the reactor. Magnesium was added to the recovered ammonium and phosphate with the lowest concentration of impurity ions. The molar ratio of magnesium:ammonium:phosphate at 2.5:13:1 produced 57.3% of struvite (by mass) and 42.7% of other precipitate products, i.e., most likely fluorapatite and MgF 2 .

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Section: Electrodialysis Reactormentioning

confidence: 99%

Electrodialytic Recovery of Ammonium and Phosphate Ions in Fertilizer Industry Wastewater by Using a Continuous-Flow Reactor

Hikmawati¹,

Bagastyo²,

Warmadewanthi³

2019

J. Ecol. Eng.

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“…There are many techniques for removing uoride from water, such as electrodialysis, 10,11 ion exchange, 12,13 nano-ltration, [14][15][16] reverse osmosis, 17 precipitation, 18 and adsorption. [19][20][21][22] Electrodialysis, ion exchange, nanoltration and reverse osmosis are all efficient methods for deuoridation; however, they are complicated, costly, and impractical for some less developed and developing countries.…”

Section: Introductionmentioning

confidence: 99%

Grape pomace as a biosorbent for fluoride removal from groundwater

Zhang

Huang

2019

RSC Adv.

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“…To date, different kinds of fluoride removal techniques such as membrane process (reverse osmosis, dialysis, and electrodialysis, etc.) and adsorption have been mainly practiced [8][9][10]. However, some of them have long been blamed for their limitations in acceptance by the communities, especially at developing rural areas due to their after use environmental effect, high operational cost and complexity of design [11].…”

Section: Introductionmentioning

confidence: 99%

A comparative study on defluoridation capabilities of biosorbents: Isotherm, kinetics, thermodynamics, cost estimation and regeneration study

Yihunu¹,

Yu²,

Junhe³

et al. 2019

Environmental Engineering Research

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The presence of high fluoride concentration (> 1.5 mg/L) in water causes serious health problems such as fluorosis, infertility, brain damage, etc., which are endemic to many places in the world. This study has investigated the fluoride removal capacity of the novel activated biochar (BTS) and hydrochar (HTS) using Teff (Eragrostis tef) straw as a precursor. Activated biochar with mesoporous structures and large specific surface area of 627.7 m 2 /g were prepared via pyrolysis process. Low-cost carbonaceous hydrochar were also synthesized by an acid assisted hydrothermal carbonization process. Results obtained from both adsorbents show that the best local maximum fluoride removal was achieved at pH 2, contact time 120 min and agitation speed 200 rpm. The thermodynamic studies proved that the adsorption process was spontaneous and exothermic in nature. Both adsorbents equilibrium data fitted to Langmuir isotherm. However, Freundlich isotherm fitted best for BTS. The maximum fluoride loading capacity of BTS and HTS was found to be 212 and 88.7 mg/g, respectively. The variation could primarily be attributed to a relatively larger Surface area for BTS. Hence, to treat fluoride contaminated water, BTS can be promising as an effective adsorbent.

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Electrodialytic removal of fluoride and calcium ions to recover phosphate from fertilizer industry wastewater

Cited by 56 publications

References 31 publications

Electrodialytic Recovery of Ammonium and Phosphate Ions in Fertilizer Industry Wastewater by Using a Continuous-Flow Reactor

Electrodialytic Recovery of Ammonium and Phosphate Ions in Fertilizer Industry Wastewater by Using a Continuous-Flow Reactor

Grape pomace as a biosorbent for fluoride removal from groundwater

A comparative study on defluoridation capabilities of biosorbents: Isotherm, kinetics, thermodynamics, cost estimation and regeneration study

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