Recovery of nitrogen from swine manure containing high-ammonia using gas-permeable membrane technology and reduced chemicals

2015 ◽  
Keyword(s):  
Swine Manure ◽  
Membrane Technology ◽  
Permeable Membrane ◽  
High Ammonia

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

Environments ◽  
2019 ◽  
Vol 6 (3) ◽  
pp. 32 ◽  
Author(s):  
Berta Riaño ◽  
Beatriz Molinuevo-Salces ◽  
Matías B. Vanotti ◽  
María Cruz García-González
Keyword(s):  
Acidic Solution ◽  
Membrane Surface ◽  
Swine Manure ◽  
Ammonia Nitrogen ◽  
Nitrogen Loading ◽  
Membrane Technology ◽  
Continuous Mode ◽  
Permeable Membrane ◽  
Total Ammonia Nitrogen ◽  
Total Ammonia

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.

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

2018 ◽  
Vol 2 ◽  
Author(s):  
Beatriz Molinuevo-Salces ◽  
Berta Riaño ◽  
Matías B. Vanotti ◽  
María C. García-González
Keyword(s):  
Anaerobic Digestion ◽  
Swine Manure ◽  
Membrane Technology ◽  
Permeable Membrane ◽  
Manure Treatment

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

2018 ◽  
Vol 2 ◽  
Author(s):  
Jose de Souza Oliveira Filho ◽  
Silvana Daguerre-Martini ◽  
Matias B. Vanotti ◽  
Jose Saez-Tovar ◽  
Antonio Rosal ◽  
...  
Keyword(s):  
Swine Manure ◽  
Membrane Technology ◽  
Permeable Membrane

scholarly journals Improving the Anaerobic Digestion of Swine Manure through an Optimized Ammonia Treatment: Process Performance, Digestate and Techno-Economic Aspects

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 787
Author(s):  
Anna Lymperatou ◽  
Niels B. Rasmussen ◽  
Hariklia N. Gavala ◽  
Ioannis V. Skiadas
Keyword(s):  
Anaerobic Digestion ◽  
Large Scale ◽  
Treatment Process ◽  
Aqueous Ammonia ◽  
Swine Manure ◽  
Batch Experiments ◽  
Ammonia Treatment ◽  
Aqueous Ammonia Soaking ◽  
High Ammonia ◽  
Reduction Efficiency

Swine manure mono-digestion results in relatively low methane productivity due to the low degradation rate of its solid fraction (manure fibers), and due to the high ammonia and water content. The aqueous ammonia soaking (AAS) pretreatment of manure fibers has been proposed for overcoming these limitations. In this study, continuous anaerobic digestion (AD) of manure mixed with optimally AAS-treated manure fibers was compared to the AD of manure mixed with untreated manure fibers. Due to lab-scale pumping restrictions, the ratio of AAS-optimally treated manure fibers to manure was only 1/3 on a total solids (TS) basis. However, the biogas productivity and methane yield were improved by 17% and 38%, respectively, also confirming the predictions from a simplified 1st order hydrolysis model based on batch experiments. Furthermore, an improved reduction efficiency of major organic components was observed for the digester processing AAS-treated manure fibers compared to the non-treated one (e.g., 42% increased reduction for cellulose fraction). A preliminary techno-economic analysis of the proposed process showed that mixing raw manure with AAS manure fibers in large-scale digesters could result in a 72% increase of revenue compared to the AD of manure mixed with untreated fibers and 135% increase compared to that of solely manure.

scholarly journals Forward Osmosis Membrane Technology in Wastewater Treatment

2021 ◽  
Author(s):  
Deniz Şahin
Keyword(s):  
Wastewater Treatment ◽  
Forward Osmosis ◽  
Solute Concentration ◽  
Membrane Technology ◽  
Membrane Process ◽  
Water And Wastewater Treatment ◽  
Concentration Difference ◽  
Permeable Membrane ◽  
Treatment Processes ◽  
Space Requirements

In recent times, membrane technology has proven to be a more favorable option in wastewater treatment processes. Membrane technologies are more advantageous than conventional technologies such as efficiency, space requirements, energy, quality of permeate, and technical skills requirements. The forward osmosis (FO) membrane process has been widely applied as one of the promising technologies in water and wastewater treatment. Forward osmosis uses the osmotic pressure difference induced by the solute concentration difference between the feed and draw solutions. The proces requires a semi-permeable membrane which has comparable rejection range in size of pollutants (1 nm and below). This chapter reviews the application of FO membrane process in wastewater treatment. It considers the advantages and the disadvantages of this process.

Aeration effect on the efficiency of swine manure treatment in a trickling filter packed with organic materials

2007 ◽  
Vol 55 (10) ◽  
pp. 135-143 ◽  
Author(s):  
M.A. Garzón-Zúñiga ◽  
P. Lessard ◽  
G. Aubry ◽  
G. Buelna
Keyword(s):  
Air Force ◽  
Water Flux ◽  
Swine Manure ◽  
Aeration Rate ◽  
Pig Manure ◽  
Trickling Filter ◽  
N2o Production ◽  
Start Up ◽  
Water Layers ◽  
High Ammonia

Effect of aeration rate on the removal of organic matter and nitrogen and on the formation of NH3, N2O and N2 was studied for an extensive biofiltration system packed with an organic media, which was used to treat pig manure. The results show high removal of BOD5 and TSS (99 and ≥98%), independently of the four aeration rate tested (3.4–34 m3/m2·h). Aeration rate ≥4.4 m/h resulted in high ammonia stripping during start-up (≥1.0 kg NH3-N/m3 of swine manure treated), while using 3.4 m/h only 0.3 kg NH3-N/m3 were stripped. Complete nitrification was achieved after day 100 of operation, except in the biofilter with the lowest aeration rate. Simultaneous denitrification established in all the biofilters. Applying an aeration rate of 9.4 m/h up to 1.2 kg nitrogen was removed in the form of N2 for each m3 of swine manure treated. Contrary to the expectations, N2 formation and release increased with the aeration rate. This particular behaviour seems to be related to the punctual accumulation of water layers inside the biofilters, caused by the air force flowing in the opposite direction to the water flux. N2O production was quite similar in all biofilters (between 0.25–0.36 kg N2O-N/m3 of swine manure treated).

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