Papers by Joanna Surmacz-Górska
Archives of Environmental Protection, 2018
Important factors affecting the effectiveness of microbiological degradation of chlorophenols inc... more Important factors affecting the effectiveness of microbiological degradation of chlorophenols include the presence of additional growth substrates, which ensure the accessibility of electron acceptors and electron donors, or the applied strains of microorganisms and their adaptation to pollution. Therefore an improvement of PCP degradation by the adaptation of activated sludge to PCP with phenol and glucose as cometabolites was examined. The activated sludge was adapted to 12 mg•L-1 of PCP and to 200 mg•L-1 of phenol, and then, the effect of the adaptation of activated sludge and the presence of additional sources of carbon and energy on the biodegradation of PCP and sorption properties were tested. The obtained results confi rmed that the presence of additional sources of carbon and energy in the growth medium would improve the effi ciency of PCP degradation. Among all analyzed types of research setups, the highest PCP degradation was noted in setups with phenol, regardless of the method of activated sludge adaptation or lack of adaptation. The biodegradation of PCP in the presence of glucose was less effi cient than in the presence of phenol. The highest, 60% decrease in PCP concentration was obtained for activated sludge adapted to PCP in the presence of phenol.
Rocznik Ochrona Srodowiska, 2015
The legal requirements for wastewater discharge into environment, especially to zones exposed to ... more The legal requirements for wastewater discharge into environment, especially to zones exposed to eutrophication, lately became stricter. Nowadays wastewater treatment plants have to manage with the new rules and assure better biogenic elements’ removal, in comparison with the past. There are some well-known methods of diminishing concentrations of these compounds, but they are ineffective in case of nitrogen-rich streams, as landfill leachate or reject waters from dewatering of digested sludge. This wastewater disturbs conventional processes of nitrification-denitrification and raise necessity of building bigger tanks. The partial nitritation followed by Anaerobic Ammonium Oxidation (Anammox) process appear to be an excellent alternative for traditional nitrification/denitrification. The process was investigated in three different reactors – Membrane Bioreactor (MBR), Moving Bed Biofilm Reactor (MBBR) and Rotating Biological Contactor (RBC). The process was evaluated in two options:...
Polish journal of microbiology, 2007
Wastewater treatment based on activated sludge is known to be one of the most effective and popul... more Wastewater treatment based on activated sludge is known to be one of the most effective and popular wastewater purification methods. An estimation of microbial community variability in activated sludge allows us to observe the correlation between a particular bacterial group's appearance and the effectiveness of the removal of chemical substances. This research is focused on microbial community temporal changes in membrane bioreactors treating wastes containing a high level of ammonia nitrogen. Samples for this study were collected from two membrane bioreactors with an activated sludge age of 12 and 32 days, respectively. The activated sludge microbial community was adapted for the removal of ammonia nitrogen up to a level of 0.3 g NH4(+) - N g/VSS/d (VSS - volatile suspended solids). The methods - denaturing gradient gel electrophoresis (DGGE) based on 16S rRNA gene PCR products and fluorescent in situ hybridization (FISH) with 16S rRNA gene probes - revealed significant differ...
Leachate from landfills is a highly complex polluted wastewater. Landfill leachate with a high co... more Leachate from landfills is a highly complex polluted wastewater. Landfill leachate with a high concentration of ammonium nitrogen is generally difficult to treat efficiently. Furthermore, it can be ...
Architecture Civil Engineering Environment, 2009
Ab s t r a c t Industrial wastewater effluents are potential source of hazardous pollutants that ... more Ab s t r a c t Industrial wastewater effluents are potential source of hazardous pollutants that are discarded into the watercourses, hence they pose a serious threat to aquatic organisms as well as human health. Identifying genotoxic substances in industrial effluents can minimize the risk of exposure to these compounds, which are suspected to have carcinogenic properties. In the present studies, the phytotoxic and genotoxic effects of wastewater obtained from fertilizer factory were investigated in Vicia faba root cells of hydroponic culture. The toxicity tests of crude wastewaters indicated an important fluctuation (seasonal differences) of mutagenic compounds among the different periods of the chemical operation. Moreover, the mutagenic profile was also assessed for biologically treated wastewaters in laboratory scale models fed with wastewater effluent from the fertilizer factory. The results proved that after biological treatment, the genotoxcity of treated effluent significan...
One of the major aspects associated with landfilling of solid wastes is related to the discharge ... more One of the major aspects associated with landfilling of solid wastes is related to the discharge of leachate into environment. Leachates with high ammonium nitrogen content are generally difficult ...
A b s t r a c t European Union regulations require very high standards of wastewater treatment du... more A b s t r a c t European Union regulations require very high standards of wastewater treatment due to both, economic and environmen tal reasons. Thus wastewater treatment plants are searching for new, efficient technologies to obtain the best quality of WWTPs’ effluent. Among other biological methods granular sludge is known to be effective and useful way for sewage purifi cation due to its better sedimentation properties. Granular sludge is interesting also from microbial ecology point of view. The composition of the granules is very difficult to be analyzed with traditional cultivation methods so molecular tools usage is advisable. In order to perform any molecular analysis DNA isolation is required. In this article we compared two DNA isolation methods – mechanical method and commercial GeneMatrix Soil DNA Isolation Kit (Eurx) and two ways of gran ular sludge preparation with PBS washing before isolation to check does the method of isolation and preparation influence further labo...
A b s t r a c t In this study, the main objective was to investigate the possibilities of the rem... more A b s t r a c t In this study, the main objective was to investigate the possibilities of the removal PPCPs (pharmaceuticals and personal care products) in the SBRs at the sludge ages of 20 and 10 days and at the two different temperatures 10°C and 20°C. The pharmaceuticals and personal care products can appear in the aquatic environment in several ways: via urine and faeces, by direct use of manure as fertilizer and also by inappropriate storage of the mentioned products. The obtained results showed, that the highest removal was gained for acidic compounds (ibuprofen, ketoprofen and naproxen). At the sludge age 20 d ibuprofen was degraded in above 90%, but at the sludge age 10 d, it was removed at the same level only at the temper ature of 20°C. Moreover, it can be stated, that removal of some PPCPs shows strong correlation with sludge age. The fol lowing compounds showed higher removal at the longer sludge age: iopromide, DAMI, ibuprofen, bezafibrate, ketoprofen and pentoxifyllin....
The pharmaceuticals present in the municipal sewage reach the municipal sewage treatment plants, ... more The pharmaceuticals present in the municipal sewage reach the municipal sewage treatment plants, but most often fail to be completely removed in there. Therefore, in the case where they constitute a substantial part of the sewage stream (hospitals, clinics, pharmacological production plants) their chemical pretreatment seems justifiable. A method based on the modification of Fenton’s reaction has been suggested. It consisted in replacing peroxide hydrogen with compressed air and enhancing the reaction by UV rays and copper cations Cu as catalysts. All the process parameters have been determined experimentally. The possibility of implementing the method in industry has been taken into consideration, therefore the values of the parameters such as pH and aeration intensity were established on a lower level despite the fact that their higher values were more effective.
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Papers by Joanna Surmacz-Górska