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1

Kinetyka wzrostu blony biologicznej zloza obrotowego w obecnosci metali ciezkich

100%
Klimiuk E.
Monografie Komitetu Gospodarki Wodnej PAN
|
1992
|
nr 3
13-29
2

Kinetyka przemian zwiazkow azotu i fosforu w osadzie czynnym w warunkach beztlenowo-tlenowych

100%
Klimiuk E.
Rozprawy i Monografie. Akademia Rolniczo-Techniczna w Olsztynie
|
1998
|
nr 03
1-103
3

Mechanizmy i kinetyka nitryfikacji i denitryfikacji w warunkach niskiego stężenia tlenu rozpuszczonego

100%
Klimiuk E.
Biotechnologia
|
1999
|
nr 2
4

Oczyszczanie odcieków z wysypisk metodą osadu czynnego w reaktorach SBR

63%
Klimiuk E., Kulikowska D.
Biotechnologia
|
1999
|
nr 2
5

Zastosowanie biosorbentow w procesach usuwania metali z roztworow wodnych

63%
Wojnowska-Baryla I., Klimiuk E.
Biotechnologia
|
1997
|
nr 4
103-112
6

Produkcja polihydroksykwasow z osadu czynnego

63%
Klimiuk E., Pokoj T.
Biotechnologia
|
2008
|
nr 3
9-27
7

Metale ciezkie w srodowisku wodnym

63%
Lebkowska M., Klimiuk E.
Monografie Komitetu Gospodarki Wodnej PAN
|
1992
|
nr 3
5-11
8

The effect of poly[vinyl alcohol] on cadmium adsorption and desorption from alginate adsorbents

63%
Klimiuk E., Kuczajowska-Zadrozna M.
Polish Journal of Environmental Studies
|
2002
|
tom 11
|
nr 4
Cadmium adsorption onto and desorption from sodium alginate and sodium alginate with poly(vinyl alcohol) (PVA) were studied. Intraparticular diffusion was demonstrated to limit adsorption kinetics during the first 20 min of process. The Deff value was dependent on adsorbent chemical composition and ranged from 3.35 ´ 10-10 m2/s to 1.86 ´ 10-10 m2/s for the 1.5% alginate with 0.5% PVA and for the 2% alginate with 5% PVA, respectively. At equilibrium the adsorption was more effective onto the 2% alginate and was lower for the alginate sorbent containing poly(vinyl alcohol). The dimensionless separation factor RL increased from 0.26 to 0.68 for the 2% alginate and the 2% alginate + 5% PVA, respectively. The maximum adsorption capacities in Langmuir isotherm for both the 2% and 1.5% alginate with 0.5% PVA were similar and were 176 and 178 mg/g dry weight, respectively. However, the adsorption capacity decreased to 48 mg/g dry weight for the 2% alginate with the 5% PVA (in proportion to the polymer amount increase in the adsorbent). Cadmium desorption was more effective for nitric acid than for sulfuric and hydrochloric acids (desorption pH 2.2). More cadmium was desorbed from 2% alginate with 5% PVA than from 2% alginate or 1.5% alginate with 0.5% PVA.
9

Effectiveness of organics and nitrogen removal from municipal landfill leachate in single- and two-stage SBR system

63%
Klimiuk E., Kulikowska D.
Polish Journal of Environmental Studies
|
2004
|
tom 13
|
nr 5
The efficiency of organics and nitrogen removal from municipal landfill leachate in activated sludge operated as single and two-stage SBR were investigated. Leachate from mature landfills are characterized by high N/COD ratio (> 0.5). In single activated sludge system at the hydraulic retention time (HRT) 3d and at methanol dosage 8 mg COD/mg NNO3 complete ammonium nitrogen removal was obtained. Ammonium concentration in the effluent was 0.15 mg NNH4/dm3 and nitrate - 23.5 mg NNO3/dm3 . At the hydraulic retention time 2d, nitrate nitrogen concentration in the effluent decreased to 2.79 mg NNO3/dm3. The concentration of ammonium nitrogen was 0.35 mg NNH4/dm3. However, a sporadically high concentration of ammonium appears. In a two-stage SBR system, HRT 2d was sufficient to achieve complete nitrification. In the effluent ammonium and nitrate concentrations were 0.08 mgNNH4/dm3 and 320 mgNNO3/dm3, respectively. In the anoxic reactor at HRT 1d and methanol dosage 3.6 mg COD/mg NNO3 complete denitrification was obtained. Raw leachate contained specific hazardous organics, among others BTEX (175.8 µg/dm3), chloroorganics (55.7 µg/dm3), chlorobenzenes (0.75 µg/dm3) and PAHs (1.97 µg/dm3). In the effluent from single and two-stage SBR systems chloroorganics and chlorobenzenes were not detected. BTEX and PAH concentrations in the effluent from two-stage system were adequately 2-fold and 2.1-fold lower in comparison to a single one. Besides, the effluent from two-stage SBR systems did not contain benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene and indeno(1,2,3-cd)pyrene.
10

Removal of organics and nitrogen from municipal landfill leachate in two-stage SBR reactors

63%
Kulikowska D., Klimiuk E.
Polish Journal of Environmental Studies
|
2004
|
tom 13
|
nr 4
The aim of this study was to investigate efficiency of ammonium nitrogen removal from municipal landfill leachate in activated sludge in two-stage SBR reactors. Treated leachate contains low concentrations of organic substances measured as chemical oxygen demand (COD) - 757 mg O2/dm3 and high concentrations of ammonium - 362 mgNNH4/dm3. Nitrification was studied in two parallel, aerated SBR reactors with two different hydraulic retention times (HRT), 3 and 2 days, respectively. We have found that 2 days HRT was sufficient to achieve complete nitrification. In the effluent ammonium, nitrite and nitrate nitrogen concentrations were 0.08 mgN NH4/dm3, 0.04 mgN NO2/dm3 and 320 mgN NO3 /dm3, respectively. The ammonium nitrogen removal rate was 20.2 mgN NH4 /dm3.h. The effluent from aerobic reactors (HRT 2 days) was fed to the anoxic SBR reactors. An external carbon source (methanol) was added to promote denitrification. In the anoxic reactor, at a methanol dosage 3.6 mg COD/mg N NO3 and HRT of 1 day complete denitrification was achieve with nitrate nitrogen residual concentrations of 0.9 mgNNO3/dm3. The maximum denitrification rate was 48.4 mgN NOx/dm3.h. The highest values of the yield methanol coefficient Y m/N-NOx were determined for dosages 3.6 mg COD/mg NNO3 and 5.4 mg COD/mg NNO3, the lowest for 1.8 mg COD/mg NNO3.
11

The influence of hydraulic retention time and sludge age on the kinetics of nitrogen removal from leachate in SBR

63%
Klimiuk E., Kulikowska D.
Polish Journal of Environmental Studies
|
2006
|
tom 15
|
nr 2
In the present study the influence of hydraulic retention time (HRT) in SBR and sludge age (SRT) on the effectiveness of nitrogen removal from leachate was investigated. Two series were performed. In each series, experiments were carried out in four SBR operated in parallel at HRT 12, 6, 3 and 2d, respectively. Each series differed in sludge age. In series 1, SRT decreased from 51 to 17d with shortening of HRT, while in series 2 it was about 2 times shorter. In each series the amount of nitrogen used on biomass synthesis, removal of nitrogen in denitrification and losses of ammonium during the aeration phase were estimated on the basis of material balance for all nitrogen forms in SBR cycle. It was shown that nitrogen consumption on biosynthesis was decreased linearly to the HRT increase. In series 1, the rate of ammonium nitrogen removal increased from 5.38 mgNNH4/g VSS·h to 7.36 mg NNH4/g VSS·h with HRT shortening from 12 to 3d, respectively. In series 2 the rate of ammonium nitrogen removal was nearly constant, regardless of HRT and on average it was 1.74 mg NNH4/g VSS·h. The losses of ammonium nitrogen in series 1 increased from 8.2 mg N/dm³.cycle in SBR 1 to 33.4 mg N/dm³.cycle in SBR 4, while in series 2 it was almost 2 times lower.
12

Szybkosc rozkladu zanieczyszczen oraz aktywnosc enzymatyczna osadu czynnego w ukladzie beztlenowo-tlenowym

51%
Stachowiak D., Klimiuk E., Wojnowska-Baryla I., Stolarczyk E.
Biotechnologia
|
1997
|
nr 3
100-108
13

Molecular identification of polyhydroxyalkanoates-producing bacteria isolated from enriched microbial community

51%
Ciesielski S., Pokoj T., Mozejko J., Klimiuk E.
Polish Journal of Microbiology
|
2013
|
tom 62
|
nr 1
Polyhydroxyalkanoates (PHAs) are especially interesting because of their similar properties to synthetic plastics and their potential use as biodegradable polymers. Many strategies have been employed to effectively and economically produce PHAs, among them a production process based on mixed microbial populations, enriched from activated sludge could be one of the alternative technologies. Defining the bacterial species creating these anonymous populations is crucial for the improvement of cultivation strategy. Moreover, enriched bacterial populations could be a promising source for microbes, useful in many biotechnological projects. The main object of this study was to characterize the microorganisms creating the microbial consortium cultured towards PHAs production. After cultivation, bacteria were identified using the 16S rRNA gene sequencing approach. The presence of genes engaged in PHAs synthesis was detected using PCR. The performed analysis revealed that among eleven isolated bacterial strains, four possessed the ability of polyhydroxybutyrate synthesis.
14

Cadmium and zinc removal in the binary systems by immobilized activated sludge in multiple cycles of adsorption-desorption

51%
Kuczajowska-Zadrozna M., Klimiuk E., Pokoj T.
Polish Journal of Natural Sciences
|
2006
|
tom 21
843-857
15

Gromadzenie polihydroksykwasow [PHA] w osadzie czynnym w warunkach limitowanego stezenia azotu. Cz. II. Ocena zroznicowania zbiorowisk mikroorganizmow w osadzie czynnym i rodzaj kumulowanych polihydroksykwasow

51%
Klimiuk E., Ciesielski S., Pokoj T., Rogowski J.
Biotechnologia
|
2005
|
nr 4
214-226
16

Badania nad kinetyka usuwania i akumulacji kadmu w zlozu kaskadowym

51%
Klimiuk E., Kanska Z., Lebkowska M.
Monografie Komitetu Gospodarki Wodnej PAN
|
1992
|
nr 3
55-69
17

Gromadzenie polihydroksykwasow [PHA] w osadzie czynnym w warunkach limitowanego stezenia azotu. Cz. I. Wplyw parametrow technologicznych na gromadzenie kwasu poli-3-hydroksymaslowego [P3[HB]]

51%
Pokoj T., Klimiuk E., Kuczajowska-Zadrozna M.
Biotechnologia
|
2005
|
nr 4
197-213
18

Usuwanie zwiazkow azotu i fosforu przez osad czynny immobilizowany w reaktorze okresowym SBR

51%
Wojnowska-Baryla I., Stachowiak D., Klimiuk E.
Biotechnologia
|
1997
|
nr 3
78-87
19

Adsorption of cadmium [Cd] and zinc [Zn] onto alginate biosorbents in single and binary component systems

51%
Klimiuk E., Kuczajowska-Zadrozna M., Pokoj T., Grabowski S.
Polish Journal of Natural Sciences
|
2006
|
tom 21
817-831
20

The influence of hydraulic retention time and sludge age on activated sludge biocenosis formation in SBRs treating landfill leachates

51%
Drzewicki A., Klimiuk E., Kulikowska D.
Polish Journal of Natural Sciences
|
2007
|
tom 22
|
nr 3
425-446
In this study the influence of hydraulic retention time (HRT) and sludge age on organic substances removal (COD), nitrogen removal and formation of activated sludge biocenosis in sequencing batch reactors (SBRs) treating municipal landfill leachate were investigated. Two series were performed (series 1 and 2). Each of them was conducted at HRT 12, 6, 3 and 2 d. Series 1 and 2 were differed in sludge age. In series 1, sludge age was over 2-fold longer than in series 2, which was obtained by volume control of suspended solids disposed in SBR operating cycle. The efficiency of organics removal from leachate (as COD) in series 1 decreased from 82.9% (HRT 12 d) to 70.5% (HRT 2 d) and in series 2 from 83.5% to 71.9%, respectively. Complete nitrification and the ammonia nitrogen concentration in the effluent below 1 mg dm⁻³ was noticed in series 1 at HRT of 3 d and longer. In activated sludge, there were examined 20 taxons. Their number depended mainly on sludge age. At sludge age shorter than 16 d only 5-4 taxons were present. The number of individuals depended both on HRT and sludge age. The richest communities were observed at 12 d HRT in both series. At HRT of 6, 3 and 2 d the total number of individuals was clearly higher in series 1 than in series 2. Type 0092 was dominated among filamentous bacterium.
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