Detail publikace

Removing Organic Contamination from Water Using UV Radiation

REPKOVÁ, M. VENSKÁ, P. ŠUBRT, M.

Originální název

Typ

abstrakt

Jazyk

angličtina

Originální abstrakt

Pyridine and pyridine derivatives (PPDs) represent an important group of environmental pollutants widely used as industrial solvents for production of pesticides, dyes, pharmaceuticals etc. or as production intermediates. These compounds naturally occure in the environment but the excessive use in industry and agriculture leads to higher concentrations in surface and ground water. Presence of PPDs in the environment is a potential risk for ecosystems and human health, such as liver damage, harmful effects on immune system and reproduction. Industrial waste water with higher levels of PPDs are toxic for water ecosystems and cause undesirable odour and taste. There is a need to remove PDDs from waste water and many different options for treatment have been developed including physical (for example adsorption on different material of ultrafiltration), chemical (based on use of chemical or photochemical oxidation, coagulation) and biological methods (large scale of different microorganisms). The thesis focuses on using UV radiation to degrade pyridine and some pyridine derivatives under different conditions. Photolysis of pyridine produces various organic products. Most likely the carboxylic acids are formed while the ring is opened and NH4+ and formamide are released. Small amount of pyridine is transformed to 2-hydroxyl pyridine. On the other hand, the degradation of 2-halogened pyridines leads mostly to formation of 2-hydroxyl pyridine. Few pathways of this degradation were proposed in which pyridine absorbs photons or is attacked by free radicals. Several methods to determinate pyridine in different types of matrix have been reported – for example HPLC, GS, GS-MS or spectrometry. Succinic acid – as the main product of degradation – is possible to be determinated by chromatographic methods.

Klíčová slova

Organic contamination, UV Radiation, Pyridine and pyridine derivatives, degradation

Autoři

REPKOVÁ, M.; VENSKÁ, P.; ŠUBRT, M.

Vydáno

30. 11. 2016

Místo

Inverness, Skotsko

Strany od

Strany do

Strany počet

BibTex

@misc{BUT130679,
  author="Martina {Repková} and Petra {Přibilová} and Michal {Šubrt}",
  title="Removing Organic Contamination from Water Using UV Radiation",
  year="2016",
  pages="79--79",
  address="Inverness, Skotsko",
  note="abstract"
}