Open AccessInfluence of a precepitator on bioremedial processes
Author(s) -
B Zvonko Njezic,
Mirjana Vojnovic-Miloradov,
V Dragan Palic,
R. Cvetkovic,
Sanja Živković
Publication year - 2010
Publication title -
hemijska industrija
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.147
H-Index - 19
eISSN - 2217-7426
pISSN - 0367-598X
DOI - 10.2298/hemind100511039n
Subject(s) - environmental science , pollutant , effluent , ecosystem , pollution , heavy metals , environmental chemistry , environmental engineering , ecology , chemistry , biology
Natural environment represents a dynamic bioreactor with numerous chemical, biochemical and microbiological processes through which harmful materials are destroyed, so that living organisms and human beings are not endanger. Controlled anthropogenic actions can assist the natural ecosystem to become an efficient bioremedial unit and to reduce the level of effluents produced in the biotechnological transformations during massive food production. In this study, a monitoring system for the chemical oxygen demand (COD) and the heavy metal levels in water was established, followed by construction and building of a precipitator in order to prevent discharging of sludge. The results contribute to the hypothesis of existence of in situ bioremedial processes in the observed ecosystem. The significant influence of the precipitator on the decrease of pollution was demonstrated: a decrease of both the COD value and the heavy metal levels downstream from the precipitator for about 15%. Therefore it can be concluded that the precipitator significantly contributes to the ecosystem by the reduction of pollutant level