Publication detail

Removing Organic Contamination from Water Using UV Radiation

REPKOVÁ, M. VENSKÁ, P. ŠUBRT, M.

Original Title

Type

abstract

Language

English

Original Abstract

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.

Keywords

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

Authors

REPKOVÁ, M.; VENSKÁ, P.; ŠUBRT, M.

Released

30. 11. 2016

Location

Inverness, Skotsko

Pages from

Pages to

Pages count

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"
}