Gas-permeable hydrophobic tubular membranes for ammonia recovery in bio-electrochemical systems

2016 ◽  
Vol 2 (2) ◽  
pp. 261-265 ◽  
Author(s):  
P. Kuntke ◽  
P. Zamora ◽  
M. Saakes ◽  
C. J. N. Buisman ◽  
H. V. M. Hamelers
Keyword(s):  
Electrochemical System ◽  
Hydrophobic Membrane ◽  
Electrochemical Systems ◽  
Cathode Compartment ◽  
Ammonia Recovery ◽  
Tubular Membranes

Integration of a gas-permeable hydrophobic membrane in the cathode compartment of a bio-electrochemical system enables efficient ammonia recovery from wastewater.

Hydrogen Gas Recycling for Energy Efficient Ammonia Recovery in Electrochemical Systems

2017 ◽  
Vol 51 (5) ◽  
pp. 3110-3116 ◽  
Author(s):  
Philipp Kuntke ◽  
Mariana Rodríguez Arredondo ◽  
Laksminarastri Widyakristi ◽  
Annemiek ter Heijne ◽  
Tom H. J. A. Sleutels ◽  
...  
Keyword(s):  
Energy Efficient ◽  
Hydrogen Gas ◽  
Electrochemical Systems ◽  
Ammonia Recovery ◽  
Gas Recycling

scholarly journals Recent Advances in Self-Powered Electrochemical Systems

Research ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Linglin Zhou ◽  
Di Liu ◽  
Li Liu ◽  
Lixia He ◽  
Xia Cao ◽  
...  
Keyword(s):  
Mechanical Energy ◽  
Power Source ◽  
Triboelectric Nanogenerator ◽  
Application Domain ◽  
Important Research ◽  
Electrochemical System ◽  
Electrochemical Systems ◽  
External Power Source ◽  
External Power ◽  
Self Powered

Electrochemistry, one of the most important research and production technology, has been widely applicated in various fields. However, the requirement of external power source is a major challenge to its development. To solve this issue, developing self-powered electrochemical system (SPES) that can work by collecting energy from the environment is highly desired. The invention of triboelectric nanogenerator (TENG), which can transform mechanical energy into electricity, is a promising approach to build SPES by integrating with electrochemistry. In this view, the latest representative achievements of SPES based on TENG are comprehensively reviewed. By harvesting various mechanical energy, five SPESs are built, including electrochemical pollutants treatment, electrochemical synthesis, electrochemical sensor, electrochromic reaction, and anticorrosion system, according to the application domain. Additionally, the perspective for promoting the development of SPES is discussed.

Enhancing the performance of a microbial electrochemical system with carbon-based dynamic membrane as both anode electrode and filtration media

2021 ◽  
Author(s):  
Fubin Liu ◽  
Hanan Moustafa ◽  
Mohammed Salah El-Din Hassouna ◽  
Zhen He
Keyword(s):  
Electricity Generation ◽  
Electrochemical System ◽  
Dynamic Membrane ◽  
Effluent Quality ◽  
Electrochemical Systems ◽  
Anode Electrode ◽  
Microbial Electrochemical Systems ◽  
Carbon Based

The dynamic membrane can enhance the electricity generation and improve the effluent quality in microbial electrochemical systems.

scholarly journals Energy-Efficient Ammonia Recovery in an Up-Scaled Hydrogen Gas Recycling Electrochemical System

2018 ◽  
Vol 6 (6) ◽  
pp. 7638-7644 ◽  
Author(s):  
Philipp Kuntke ◽  
Mariana Rodrigues ◽  
Tom Sleutels ◽  
Michel Saakes ◽  
Hubertus V. M. Hamelers ◽  
...  
Keyword(s):  
Energy Efficient ◽  
Hydrogen Gas ◽  
Electrochemical System ◽  
Ammonia Recovery ◽  
Gas Recycling

scholarly journals Exploiting Donnan Dialysis to enhance ammonia recovery in an electrochemical system

2020 ◽  
Vol 395 ◽  
pp. 125143
Author(s):  
Mariana Rodrigues ◽  
Tom Sleutels ◽  
Philipp Kuntke ◽  
Douwe Hoekstra ◽  
Annemiek ter Heijne ◽  
...  
Keyword(s):  
Electrochemical System ◽  
Donnan Dialysis ◽  
Ammonia Recovery

scholarly journals The Application of Cation Exchange Membranes in Electrochemical Systems for Ammonia Recovery from Wastewater

Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 494
Author(s):  
Kai Yang ◽  
Mohan Qin
Keyword(s):  
Cation Exchange ◽  
Crucial Role ◽  
Performance Metrics ◽  
Ammonium Nitrogen ◽  
Comprehensive Review ◽  
Electrochemical Systems ◽  
Electrochemical Processes ◽  
Ammonia Recovery ◽  
Exchange Membrane ◽  
Electrochemical Stripping

Electrochemical processes are considered promising technologies for ammonia recovery from wastewater. In electrochemical processes, cation exchange membrane (CEM), which is applied to separate compartments, plays a crucial role in the separation of ammonium nitrogen from wastewater. Here we provide a comprehensive review on the application of CEM in electrochemical systems for ammonia recovery from wastewater. Four kinds of electrochemical systems, including bioelectrochemical systems, electrochemical stripping, membrane electrosorption, and electrodialysis, are introduced. Then we discuss the role CEM plays in these processes for ammonia recovery from wastewater. In addition, we highlight the key performance metrics related to ammonia recovery and properties of CEM membrane. The limitations and key challenges of using CEM for ammonia recovery are also identified and discussed.

scholarly journals Load ratio determines the ammonia recovery and energy input of an electrochemical system

2017 ◽  
Vol 111 ◽  
pp. 330-337 ◽  
Author(s):  
Mariana Rodríguez Arredondo ◽  
Philipp Kuntke ◽  
Annemiek ter Heijne ◽  
Hubertus V.M. Hamelers ◽  
Cees J.N. Buisman
Keyword(s):  
Energy Input ◽  
Load Ratio ◽  
Electrochemical System ◽  
Ammonia Recovery

scholarly journals The different behaviour of Thermotoga neapolitana in the anodic and cathodic compartment of a bioelectrochemical system

2022 ◽  
Vol 334 ◽  
pp. 08008
Author(s):  
Pierangela Cristiani ◽  
Laura Malavola ◽  
Silvia Franz ◽  
Massimiliano Bestetti ◽  
Giuliana D’Ippolito ◽  
...  
Keyword(s):  
High Performance ◽  
Thermotoga Neapolitana ◽  
Electrochemical System ◽  
Bioelectrochemical System ◽  
Electrochemical Systems ◽  
Hyperthermophilic Bacterium ◽  
The Media ◽  
Energy Application ◽  
Cathodic Compartment ◽  
Double Chamber

Thermotoga neapolitana is a hyperthermophilic bacterium that can metabolize glucose and several organic wastes in hydrogen and lactate at a temperature of 80°C. Their high performance in producing hydrogen at so high a temperature as 80°C suggests a potential energy application of them where hydrogen is an important element of the process. In this view, experimentation of a T.neapolitana strain is carried out in double-chamber electrochemical systems. The aim is to explore the interaction of these bacteria with the anode and the cathode, stressing their capability to survive in presence of a polarized electrode which can drastically change the pH of the media. A culture enriched of 5 g/L of glucose, under CO2 pressure (80 °C) was used to fill both the anodic and cathodic compartments of the electrochemical system, applying a voltage of 1.5 V between the anode and the cathode. The test lasted ten days. Results clearly indicate that bacteria colonize both electrodes, but the glucose metabolism is completely inhibited in the anodic compartments. On the contrary, metabolism is stimulated in the cathodic compartment. Bacteria are alive on the electrodes in the pH interval of 3 - 9.

Ammonia recovery from landfill leachate using hydrophobic membrane contactors

2016 ◽  
Vol 74 (9) ◽  
pp. 2177-2184 ◽  
Author(s):  
Míriam C. S. Amaral ◽  
Nátalie C. Magalhães ◽  
Wagner G. Moravia ◽  
Carolina D. Ferreira
Keyword(s):  
Sulfuric Acid ◽  
Flow Rate ◽  
Landfill Leachate ◽  
Hollow Fiber Membrane ◽  
Ammonia Removal ◽  
Solution Ph ◽  
Hydrophobic Membrane ◽  
Ammonia Content ◽  
Ammonia Recovery ◽  
Membrane Contactors

This article aims to evaluate membrane contactors capability to remove and recover ammonia from landfill leachate (LFL). A hydrophobic hollow fiber membrane module was used to achieve such purpose. A sulfuric acid diluted solution was used as extraction solution to speed up ammonia content removal. Several factors that have influence on ammonia removal and recovery capability such as ammonia solution pH, concentration of sulfuric acid solutions and flow rate of liquid phases have been examined. Microfiltration was the method used as pretreatment. The results have shown that membrane contactor operated with LFL (pH 10), 0.1 M acid solution and liquid flow rate up to 0.5 L min−1 achieved 99.9% of ammonia removal, which corresponds to 79.1% of ammonia recovery from the extraction solution, and it is capable to produce highly purified ammonium sulfate solutions (41.2%, wt wt−1) to be used as fertilizer. The concentration of total ammonia nitrogen (TAN) in the residual LFL complies with Brazilian law requirements of 20.0 mg L−1 of TAN, regarding the disposal of effluents.

scholarly journals Biogas Upgrading and Ammonia Recovery from Livestock Manure Digestates in a Combined Electromethanogenic Biocathode—Hydrophobic Membrane System

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 503
Author(s):  
Miriam Cerrillo ◽  
Laura Burgos ◽  
August Bonmatí
Keyword(s):  
Ph Value ◽  
Organic Matter Content ◽  
High Strength ◽  
Membrane System ◽  
Matter Content ◽  
Electrolysis Cell ◽  
Pig Slurry ◽  
Hydrophobic Membrane ◽  
Ammonia Recovery ◽  
Recirculation Loop

Anaerobic digestion process can be improved in combination with bioelectrochemical systems in order to recover energy and resources from digestates. An electromethanogenic microbial electrolysis cell (MEC) coupled to an ammonia recovery system based on hydrophobic membranes (ARS-HM) has been developed in order to recover ammonia, reduce organic matter content and upgrade biogas from digested pig slurry. A lab-scale dual-chamber MEC was equipped with a cation exchange membrane (CEM) and ARS with a hydrophobic membrane in the catholyte recirculation loop, to promote ammonia migration and absorption in an acidic solution. On the other hand, an electromethanogenic biofilm was developed in the biocathode to promote the transformation of CO2 into methane. The average nitrogen transference through the CEM was of 0.36 gN m−2 h−1 with a removal efficiency of 31%, with the ARS-HM in the catholyte recirculation loop. The removal of ammonia from the cathode compartment helped to maintain a lower pH value for the electromethanogenic biomass (7.69 with the ARS-HM, against 8.88 without ARS-HM) and boosted methane production from 50 L m−3 d−1 to 73 L m−3 d−1. Results have shown that the integration of an electromethanogenic MEC with an ARS-HM allows for the concomitant recovery of energy and ammonia from high strength wastewater digestates.

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