Recovery of ammonia from swine manure using gas-permeable membranes: Effect of waste strength and pH

García-González, María Cruz; Vanotti, Matías B.

doi:10.1016/j.wasman.2015.01.021

Cited by 125 publications

(97 citation statements)

References 16 publications

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“…Total ammoniacal nitrogen (TAN) recoveries up to 82% of the initial TAN have been reported with pH adjustment. This value decreased to 55% without pH control (Garcia-González and Vanotti, 2015). Moreover, organic matter is partially removed during SM treatment by gas-permeable membrane technology at low-aeration rates.…”

Section: Introductionmentioning

confidence: 93%

Gas-Permeable Membrane Technology Coupled With Anaerobic Digestion for Swine Manure Treatment

Molinuevo-Salces

Riaño

Vanotti

et al. 2018

Front. Sustain. Food Syst.

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Section: Introductionmentioning

confidence: 93%

Gas-Permeable Membrane Technology Coupled With Anaerobic Digestion for Swine Manure Treatment

Molinuevo-Salces

Riaño

Vanotti

et al. 2018

Front. Sustain. Food Syst.

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“…(2) air stripping towers and zeolite adsorption techniques need pre-treatment of manure; and (3) struvite precipitation requires the addition of Mg 2+ and PO 4 3+ to balance the stoichiometry of struvite precipitation [14]. The technology based on gas-permeable membranes presents several advantages over traditional processes such as (1) low energy consumption (0.18 kWh kg NH 3 −1 ), (2) it is carried out at low pressure, (3) it does not require pre-treatment of wastewater, and (4) it does not need addition of any alkali reagent [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…The technology based on gas-permeable membranes presents several advantages over traditional processes such as (1) low energy consumption (0.18 kWh kg NH 3 −1 ), (2) it is carried out at low pressure, (3) it does not require pre-treatment of wastewater, and (4) it does not need addition of any alkali reagent [15][16][17]. The most important phenomenon related to gas-permeable membranes is the mass transfer driven by the difference in NH 3 gas concentration between both sides of the microporous, hydrophobic membrane [14,18]. More specifically, NH 3 contained in the livestock wastes passes through the membrane, being captured and concentrated in an acidic stripping solution on the other side of the membrane.…”

Section: Introductionmentioning

confidence: 99%

“…The gas-permeable membrane technology has been successfully applied to recover up to 99% of TAN from swine manure and anaerobically digested swine manure [5,14,[21][22][23]. Previous research mainly focused on the influence of operational conditions such as animal waste strength and pH on TAN recovery using gas-permeable membranes always operated at batch mode.…”

Section: Introductionmentioning

confidence: 99%

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Application of Gas-Permeable Membranes For-Semi-Continuous Ammonia Recovery from Swine Manure

et al. 2019

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Gas-permeable membrane technology is a new strategy to minimize ammonia losses from manure, reducing pollution and recovering N in the form of an ammonium salt fertilizer. In this work, a new operational configuration to recover N using the gas-permeable membrane technology from swine manure was tested in a semi-continuous mode. It treated swine manure with a total ammonia nitrogen (TAN) concentration of 3451 mg L−1. The system was operated with low aeration rate (to raise pH), and with hydraulic retention times (HRT) of seven days (Period I) and five days (Period II) that provided total ammonia nitrogen loading rate (ALR) treatments of 491 and 696 mg TAN per L of reactor per day, respectively. Results showed a uniform TAN recovery rate of 27 g per m2 of membrane surface per day regardless of the ALR applied and the manure TAN concentration in the reactor. TAN removal reached 79% for Period I and 56% for Period II, with 90% of recovery by the membrane in both periods. Water capture in the acidic solution was also uniform during the experimental period. An increase in temperature of 3 °C of the acidic solution relative to the wastewater reduced 34% the osmotic distillation and water dilution of the product. These results suggested that the gas-permeable membrane technology operating in a semi-continuous mode has a great potential for TAN recovery from manure.

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“…The new process using GPM consists of submerging the gas membranes in the organic liquid residue causing the NH 3(g) to penetrate into its pores and is captured by an acidic solution circulating in the membrane interior. The combination of the NH 3(g) with H + ions from H 2 SO 4 inside the membrane generates a NH + 4 concentrated solution with potential to be used as a nitrogen fertilizer (Figure 1; Garcia-Gonzalez and Vanotti, 2015;García-González et al, 2015;Vanotti and Szogi, 2015).…”

Section: Introductionmentioning

confidence: 99%

Recovery of Ammonia in Raw and Co-digested Swine Manure Using Gas-Permeable Membrane Technology

Filho

Daguerre-Martini

Vanotti³

et al. 2018

Front. Sustain. Food Syst.

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Anaerobic digestion of agro-industrial and livestock waste generates considerable digestate volumes that are important sources of nitrogen (N). However, on some occasions, the high concentrations of N present in the digestates may represent an obstacle to its use locally as fertilizer, since it can cause an environmental impact (European Community, 2000). This study analyzes the efficiency of gas-permeable membranes (GPM) in the recovery of the ammoniacal nitrogen (NH + 4 ) present in the swine manure (SM, Control) and three digestates generated from the anaerobic co-digestion of mixtures of SM, fruit and vegetable sludge (FVS) from the vegetable industry (peppers and artichokes), and by-products of the tomato processing industry (TW) (skins and seeds), which were mixed at three different proportions [TW + FVS]: [SM]. Their NHx + content was 2,240 mg L −1 for the SM and 4,670-5,370 for the digestate mixtures. Throughout the duration of the Necovery experiment (96 h), the percentages of NH + 4 removal and recovery achieved were consistent among treatments, approximatelly 78 and 96%, respectively. The recovery of NH 4 + for the digestate mixtures seems to be dependent on the treatment time, since the potential of N recovery was higher when the treatment time increased. However, for the control experiment (SM), with lower N concentration, the maximum N recovery was obtained at the experimental time established, without increasing the treatment time.

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Recovery of ammonia from swine manure using gas-permeable membranes: Effect of waste strength and pH

Cited by 125 publications

References 16 publications

Gas-Permeable Membrane Technology Coupled With Anaerobic Digestion for Swine Manure Treatment

Gas-Permeable Membrane Technology Coupled With Anaerobic Digestion for Swine Manure Treatment

Application of Gas-Permeable Membranes For-Semi-Continuous Ammonia Recovery from Swine Manure

Recovery of Ammonia in Raw and Co-digested Swine Manure Using Gas-Permeable Membrane Technology

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