Ammonia recycling enables sustainable operation of bioelectrochemical systems

Ammonia recycling enables sustainable operation of bioelectrochemical systems.

Ammonium (NH4(+)) migration across a cation exchange membrane is commonly observed during the operation of bioelectrochemical systems (BES). This often leads to anolyte acidification (pH <5.5) and complete inactivation of biofilm electroactivity. Without using conventional pH controls (dosage of alkali or pH buffers), the present study revealed that anodic biofilm activity (current) could be su...

Development of Bioelectrochemical Systems to Promote Sustainable Agriculture

Bioelectrochemical systems (BES) are a newly emerged technology for energy-efficient water and wastewater treatment. Much effort as well as significant progress has been made in advancing this technology towards practical applications treating various types of waste. However, BES application for agriculture has not been well explored. Herein, studies of BES related to agriculture are reviewed a...

Ammonium as a sustainable proton shuttle in bioelectrochemical systems.

This work examines a pH control method using ammonium (NH(4)(+)) as a sustainable proton shuttle in a CEM-equipped BES. Current generation was sustained by adding NH(3) or ammonium hydroxide (NH(4)OH) to the anolyte, controlling its pH at 7. Ammonium ion migration maintained the catholyte pH at approximately 9.25. Such NH(4)(+)/NH(3) migration accounted for 90±10% of the ionic flux in the BES. ...

ICT systems supporting sustainable operation and development of municipal waterworks

In the paper a concept of an ICT system for complex management of whole communal waterworks is presented. The ICT system called MOSKAN consists of several program modules integrated by a GIS platform. The system is being developed by the Systems Research Institute (IBS PAN) in Warsaw and partially tested in some Polish waterworks. Keywords—waterworks management, computer aided decisions making ...

Innovative bioelectrochemical-anaerobic-digestion coupled system for ammonia recovery and biomethane production from ammonia-rich residues