Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: physical treatments

Sortuj według:

Ogranicz wyniki do:

Removal of microplastics in unit processes used in water and wastewater treatment : a review

Bodzek Michał, Pohl Alina

Archives of Environmental Protection

2022

Vol. 48, no. 4

102--128

Many tons of micro- and nano-sized plastic particles enter the aquatic environment every year, due to increasing plastic production, with the consequent risk of microplastics contaminating our environment. Addressing this multifaceted threat requires innovative technologies that can efficiently remove microplastics from the environment. Therefore, there is an urgent need to study the efficiency of the removal of microplastics by different water and wastewater treatment technologies. After short overviewed the source, occurrence, and potential adverse impacts of microplastics to human health, we then identified promising technologies for microplastics removal, including physical, chemical, and biological approaches. A detailed analysis of the advantages and limitations of different techniques was provided. According to literature data, the performance of microplastics removal is as follows: membrane bioreactor (>99%) > activated sludge process (~98%) > rapid sand filtration (~97.1%) > dissolved air floatation (~95%) > electrocoagulation (>90%) > constructed wetlands (88%). Chemical treatment methods such as coagulation, magnetic separation, Fenton, photo-Fenton and photocatalytic degradation also show moderate to high efficiency of microplastics removal. Hybrid treatment such as the MBR-UF/RO system, coagulation followed by ozonation, adsorption, dissolved air flotation, filtration, and constructed wetlands based hybrid technologies have shown very promising results in the effective removal of microplastics. Lastly, research gaps in this area are identified, and suggestions for future perspectives are provided. We concluded this review with the current challenges and future research priorities, which will guide us through the path addressing microplastics contamination.

Difficulties in developing algorithms for application of physical methods of treatment of depressions: electroconvulsive therapy as well as other methods of electric and magnetic stimulation

Zyss T.

Bio-Algorithms and Med-Systems

2011

Vol. 7, no. 1

57--62

Therapeutic algorithms constitute a kind of aid for selection of an appropriate method of treatment and its subsequent stages with regard to different diseases in order to achieve the highest effectiveness of the therapy. The work describes premises and difficulties in development of therapeutic algorithms with regard to a number of physical methods which are applied in psychiatry in treatment of depressive disorders, and which make use of the phenomena of magnetic or electric stimulation.