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Decomposition of hydrogen perodixe - kinetics and review of chosen catalysts

Pędziwiatr P., Mikołajczyk F., Zawadzki D., Mikołajczyk K., Bedka A.

Acta Innovations

2018

no. 26

45--52

Hydrogen peroxide is a chemical used in oxidation reactions, treatment of various inorganic and organic pollutants, bleaching processes in pulp, paper and textile industries and for various disinfection applications. It is a monopropellant, which, when purified, is self-decomposing at high temperatures or when a catalyst is present. Decomposing to yield only oxygen and water(disproportionation), hydrogen peroxide is one of the cleanest, most versatile chemicals available. The catalytic decomposition of hydrogen peroxide allows the use of various catalysts that will increase the rate of decomposition. Comparison and description of the most commonly used catalysts were presented in this review.

A novel microbial fuel cell with exchangable membrane - application of additive manufacturing technology for device fabrication

Zawadzki D., Pędziwiatr P., Michalska K.

Acta Innovations

2018

no. 28

20--31

Research about exploitation the potential of waste and sludge increased drastically in the recent years. One of the most promising alternative methods of waste management is Microbial Fuel Cell (MFC), which generate clean bio-electricity using microorganisms. Organic compounds, sewage, municipal solid waste could be used as a source for microbial nutrition. The construction of MFC is one of the most important parameter in laboratory studies and during scale-up. The efficiency of MFC depends on many factors including type of membrane. To obtain optimization in terms of various operating conditions, a prototype of Microbial Fuel Cell with exchangeable membrane was projected and fabricated by additive manufacturing (AM) technology. This novel device allows to research effects of different types of separator membranes. Preliminary research showed possibility to produce 3D printed MFC systems.

Aquaculture waste management

Pędziwiatr P., Zawadzki D., Michalska K

Acta Innovations

2017

no. 22

20--29

Fish and seafood production has grown steadily in the past five decades. Total world fisheries and aquaculture production reached 167.2 million tonnes in 2014 [1]. Intensive fish production triggers growth in the amount of waste processing, which has serious environmental impacts. Utilization and energy recovery from fish waste have become areas of interest for the global economy. Specialized methods and techniques have been developed to acquire biomethane, biodiesel and biofertilizer from fish biomass. Also, using physical, biochemical and thermochemical processes, relevant substances (such as fish protein hydrolysate, natural pigments, chitosan and collagen) can be obtained.