Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Microbiological treatment of post-industrial water : Example of efficient bioremediation of the heavily polluted Kalina pond, Poland

Starzec Katarzyna, Stańkowska Emilia, Supel Paulina, Mazur Robert, Surma Piotr, Kaszycki Paweł

Journal of Water and Land Development

2024

no. 60

236--245

The Kalina pond has been well known as a severely degraded area in the Silesia region, Poland. The environmental deterioration results from high contamination of water and bottom sediments with recalcitrant and toxic organic compounds, mainly phenol. The study was aimed at developing a bioremediation-based approach suitable for this type of polluted areas, involving microbiological treatment of water as a key and integral part of other necessary actions: mechanical interventions and the use of physical methods. During the initial biological treatment stage, autochthonous microorganisms were isolated from contaminated samples of water, soil and sediment, then subjected to strong selective pressure by incubation with the pollutants, and finally, cultivated to form a specialised microbial consortium consisting of five extremophilic bacterial strains. Consortium propagation and its biodegradation activity were optimised under variant conditions enabling bacteria to proliferate and to obtain high biomass density at large volumes allowing for the in situ application. After installing aeration systems in the pond, the consortium was surface-sprinkled to launch bioremediation and then both bacterial frequency and the contaminant level was systematically monitored. The complex remediation strategy proved efficient and was implemented on an industrial scale enabling successful remedial of the affected site. Treatment with the specifically targeted and adapted microbial consortium allowed for removal of most organic pollutants within a four-month season of 2022: the chemical oxygen demand (COD) value decreased by 72%, polyaromatic hydrocarbon (PAH) level by 97%, while the content of total phenols and other monoaromatic hydrocarbons (BTEX) dropped below the detection thresholds.

Rewitalizacja zdegradowanych terenów poprzemysłowych – remediacja stawu Kalina

Stańkowska Emilia, Surma Piotr

Nowoczesne Budownictwo Inżynieryjne

2022

Nr 4

48--49

Skażenie środowiska naturalnego na terenie województwa śląskiego stanowi poważny problem w skali całego kraju. Związane jest to z historycznymi uwarunkowaniami aglomeracji śląskiej, na obszarze której były lub są zlokalizowane liczne zakłady przemysłowe emitujące szkodliwe związki chemiczne do otoczenia. Problem skażenia terenów zdegradowanych może rozwiązać odpowiednio przeprowadzona remediacja.