Treatment of swine wastewater combined with MgO-saponification wastewater by struvite precipitation technology

Huang, Haiming; Chen, Yongqian; Yang, Jiang; Ding, Li

doi:10.1016/j.cej.2014.05.054

Cited by 65 publications

(19 citation statements)

References 34 publications

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“…Control of pH is very important in precipitation of scale in wastewater treatment. This is due to the fact that the relating ions, in the case of struvite precipitation (Mg 2+ , NH and PO ) are highly dependent on pH value (Huang et al, 2014a). Increment in the pH value of the wastewater subject would decrease the formed crystal size (Hutnik et al, 2013).…”

Section: Phmentioning

confidence: 99%

Scale Deposits From Palm Oil Mill Effluent (Pome) Treatment and Various Other Industries: A Developmental Review

Muzzammil¹

2018

JOPR

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The palm oil mill effluent (POME) treatment process is exposed to the formation of crystal-like deposits where their accumulation could create a significant threat to achieving an efficient POME treatment. This article reviewed similar occurrences in other industries, discussed factors influencing the crystal formation and suggested possible solutions to be applied in the oil palm industry. From the review, it was found that crystal deposits have always been a nuisance and sometimes a significant threat to similar industries such as industrial, agricultural and municipal wastewater treatment facilities. Other industries where there is a handling process of certain type of fluids such as heat transfer and oil reservoir drilling fluids also faces similar problems. The article also presented the spectrum of methods for mitigation and removal of the crystal formed. For many cases, nutrient recovery through struvite precipitation has become attractive as it not only reduces crystal growth but at the same time prevents excessive nutrients discharge to the environment. Further exploitation of the recovered struvite as a fertiliser source could possibly generate additional income to the oil palm industry.

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Section: Phmentioning

confidence: 99%

Scale Deposits From Palm Oil Mill Effluent (Pome) Treatment and Various Other Industries: A Developmental Review

Muzzammil¹

2018

JOPR

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“…Considering the critical pollution problems caused by swine wastewater, applying a struvite technique as a pretreatment process of biological treatment has promise for both nutrient recovery and bio-treatment enhancement [38]. To the best of our knowledge, little information is available on struvite pellet production using this water source.…”

Section: Introductionmentioning

confidence: 98%

A comprehensive understanding of saturation index and upflow velocity in a pilot-scale fluidized bed reactor for struvite recovery from swine wastewater

Lou

et al. 2016

Powder Technology

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“…Therefore, inexpensive magnesium sources such as magnesite [32], brucite [33], a by-product of marine salt manufacturing and by-product of the thermal treatment of meat waste, bone meal, etc. [34], MgO-saponification wastewater [35], seawater [36,37], and bottom ash collected from a small residential fireplace [38] to produce struvite have been tested in several papers. However, Ca-and Mg-rich fly ash from a full-scale power plant has not been previously tested for struvite precipitation.…”

Section: Introductionmentioning

confidence: 99%

The Use of Ca- and Mg-Rich Fly Ash as a Chemical Precipitant in the Simultaneous Removal of Nitrogen and Phosphorus—Recycling and Reuse

et al. 2019

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The European Union’s circular economy strategy aims to increase the recycling and re-use of products and waste materials. According to the strategy, the use of industry waste material should be more effective. A chemical precipitation method to simultaneously remove phosphorus and nitrogen from synthetic (NH4)2HPO4 solution and the liquid phase of anaerobic digestate using fly ash as a precipitant was tested. Fly ash is a waste material formed in the power plant process. It mainly contains calcium oxide (CaO) and magnesium oxide (MgO). Saturated precipitant solution was prepared from fly ash, which was added in small proportions to (NH4)2HPO4 solution during the experiment. Fly ash’s effectiveness as a precipitant was compared with that of commercial CaO and MgO salts, and it can be observed that fly ash removed as much ammonium and phosphate as commercial salts. Fly ash sufficiently removed ammonium nitrogen and phosphate from the liquid phase of anaerobic digestate, which led to the formation of ammonium magnesium hydrogen phosphate hydrate, struvite (NH4MgPO4·6H2O), and calcium hydroxide phosphate, monetite, CaPO3(OH). In this study, we have shown for the first time that fly ash can be used to manufacture recycled, slow-release fertilizers from anaerobic digestate.

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Treatment of swine wastewater combined with MgO-saponification wastewater by struvite precipitation technology

Cited by 65 publications

References 34 publications

Scale Deposits From Palm Oil Mill Effluent (Pome) Treatment and Various Other Industries: A Developmental Review

Scale Deposits From Palm Oil Mill Effluent (Pome) Treatment and Various Other Industries: A Developmental Review

A comprehensive understanding of saturation index and upflow velocity in a pilot-scale fluidized bed reactor for struvite recovery from swine wastewater

The Use of Ca- and Mg-Rich Fly Ash as a Chemical Precipitant in the Simultaneous Removal of Nitrogen and Phosphorus—Recycling and Reuse

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