Abstract
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.
Highlights
Definisano je osam lokacije za uzorkovanje: 1. Reka Tisa (L1), 2
A monitoring system for the chemical oxygen demand (COD) and heavy metal levels in water was established, followed by construction and building of a precipitator in order to prevent discharging of sludge
Summary
Predmet istraživanja u ovom radu bio je vodeni ekosistem koga čine: reka Tisa (ulaz), kanali i jezera ribljeg gazdinstva „Ečka“ i specijalni rezervat prirode (SRP) „Stari Begej-Carska Bara“. Ribnjak se snabdeva vodom iz reke Tise, a voda se izbacuje u specijalni rezervat prirode „Stari Begej-Carska Bara“, koji se nalazi u međurečju Begeja i Tise na 1676 ha, i sastoji se od starog korita Begeja i Perleske Bare, Tiganjice i Carske Bare. U ovom radu prikazan je deo istraživanja koja su vršena na vodenom ekosistemu koga čine: reka Tisa (ulaz), kanali i jezera RG „Ečka“, SRP „Stari Begej-Carska bara“. U okviru istraživanja za potrebe izrade rešenja za sprečavanje unosa velikih količina mulja u SRP postavljen je model eko-redukovanja efluenata, izgrađena taložnica i određeno vreme uzorkovanja u sklopu uspostavljanja monitoringa. Model određuje tačna mesta uzorkovanja, vreme uzorkovanja, vrstu uzorka, metode analize i postupke u slučaju dobijanja rezultata merenja parametara koji ne odgovaraju poželjnim propisanim vrednostima
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