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 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 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.

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