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Preliminary studies on the use of Fenton reagent to reduce pollution from wastewater from the production of household chemicals

100%

Malarski M., Czajkowska J., Nowak P.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2018

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tom 50

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nr 4

2

Comparison of saprobical analyses using plankton in the tributaries of the Upper Tisa, Hungary in 2001-2002

100%

Imre A.

Oceanological and Hydrobiological Studies

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2004

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tom 33

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nr 2

3

Assessment of readily biodegradable organic matter in Vilnius municipality's wastewater: a case study

84%

Dauknys R., Matuzevicius A., Nemanyte J., Valentukeviciene M.

Annals of Warsaw Agricultural University. Land Reclamation

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2005

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tom 36

4

COD, TN and TP removal of Typha wetland vegetation of different structures

84%

Debing J., Lianbi Z., Xiaosong Y., Jianming H., Mengbin Z., Yuzhong W.

Polish Journal of Environmental Studies

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2009

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tom 18

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nr 2

183-190

The diversity of aquatic macrophytes plays an important role in wastewater purification. To optimize poly-culture vegetation structure, Typha-Phragmites-Scirpus (with T. angustata, P. communis, S. validus as major species) vegetation, Typha-main (with T. angustata as major species) vegetation and Typha-monoculture vegetation as three design treatments were planted in pilot-scale gravel-based subsurface wetlands to treat artificial sewage. The Typha vegetation depicted had high COD, TN and TP removal loads in wetlands when low pollution load was treated, Typha-Phragmites-Scirpus vegetation had COD, TP and TN removal loads of 0.517 g m⁻² d⁻¹, 0.277 g P m⁻² d⁻¹ and 0.023 g N m⁻² d⁻¹ in autumn. A Partial Correlations Analysis showed that COD removal loads significantly and positively correlated with plant species and stem density in either pilot scale or medium-sized (430 m² in area) constructed wetland. The N, P amounts in the above-ground tissue are only 3.5~11.1 g N m⁻² yr⁻¹ and 1.3~13.5 g P m⁻² yr⁻¹ in medium-sized and pilot scale wetlands, because both biomass and N, P contents of wetland vegetation harvested in late autumn were low. Thus, it is important for constructed wetlands to optimize poly-culture vegetation structure to improve treatment efficiency. Generally, the poly-culture wetlands vegetation of T. angustata, P. communis, S. validus, Z. latifolia, Acorus calamus with stem densities of 23 stem m⁻², 194 stem m⁻², 112 stem m⁻², 26 stem m⁻², 42 stem m⁻² could gain excellent removal efficiency.

5

Characterization and biological treatability of edible oil wastewaters

84%

Aslan S., Alyuz B., Bozkurt Z., Bakaoglu M.

Polish Journal of Environmental Studies

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2009

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tom 18

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nr 4

533-538

This study investigates the conventional characterization and biological treatability of two different wastewaters that originated from corn oil and sunflower oil refining processes. Our aims for characterization of wastewaters included: total and soluble chemical oxygen demand, total and soluble biological oxygen demand, suspended solid, oil and grease, pH, total kjeldahl nitrogen, ammonia nitrogen, total phosphor, phosphate, color and sulfate analyses. In corn oil wastewaters, total COD is portioned as 80% soluble COD, 20% particular COD, 3.4% total soluble inert COD, 0.5% total particular inert COD, whereas in sunflower oil wastewaters soluble COD, particular COD, total soluble inert COD, total particular inert COD are found as 81.7%, 18.3%, 1.9%, and 5.1%, respectively. In our characterization studies, BOD5/COD ratio were 0.15 and 0.2 for corn oil and sunflower oil wastewaters, respectively. These results indicate that wastewaters are not suitable for biological treatment. But investigation of COD fractions has pointed out that wastewaters contain mostly biodegradable organic substances.

6

Natural treatment of woolen processing industry wastewater

84%

Qurashi S., Sahu O.

International Letters of Natural Sciences

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2014

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tom 05

Wastewater treatment is becoming ever more critical due to diminishing water resources, increasing wastewater disposal costs, and stricter discharge regulations that have lowered permissible contaminant levels in waste streams. The ultimate goal of wastewater management is the protection of the environment in a manner commensurate with public health and socio-economic concerns. The aim of our study is to use natural occurring plant (Pistia stratiotes) to reduce the chemical oxygen demand and color from the industrial waste water. It was found that 120 mg/l of Chemical oxygen demand and 85 mg/l of color reduction was observed with Pistia stratiotes.

7

Impact of dissolved oxygen on hospital wastewater quality treated by SBBR in Basrah city, Iraq

84%

Al-Rekabi W. S., Al-Khafaji S. A., Janna H.

Przegląd Naukowy. Inżynieria i Kształtowanie Środowiska

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2022

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tom 31

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nr 1

8

Simultaneous generation of bioelectricity and treatment of swine wastewater in a microbial fuel cell

84%

Egbadon E. O., Akujobi C. O., Nweke C. O., Braide W., Akaluka C. K., Adeleye S. A.

International Letters of Natural Sciences

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2016

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tom 54

This study aimed at the simultaneous treatment of wastewater obtained from swine and generation of bioenergy in form of electricity from the energy stored in the organic component of the wastewater. The Open circuit voltage, current, power density and microbiological and physicochemical parameters were monitored. An initial Open circuit voltage of 516mV, Current of 0.29mA, and Power density of 32.74mW/m2 were recorded, which increased to give maximum Open Circuit Voltages of 836mV, Current of 0.49mA, and Power density of 88.45mW/m2. The results revealed that The Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD), Organic carbon, Total Soluble solids (TSS), Ammonia, Ammonium and Ammonium-Nitrogen all showed percentage decrease of 85.92%, 51.74%, 78.16%, 98.87%, 55.87%, 55.79% and 55.90% respectively while parameters such as Total Dissolved Solids (TDS), Nitrate, Nitrate-Nitrogen, Phosphates, Phosphorus and Orthophosphates however increased after treatment to give a percentage increase of -273.60%, -131.65%, -134.85%, -168.77%, -159.26%, and -157.03% respectively. Bacteria isolates identified at the biofilms on the anode were Corynebacterium specie, Bacillus specie, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Streptococcus faecalis. The results from this study further exacerbate the Bioelectricity production as well as wastewater treatment potentials of the Microbial Fuel Cell technology.

9

Chemical composition of rye-grass as affected by chemical oxygen demand and heavy metal concentration in irrigation water and clay content of the soil

84%

Singh S. P., Tack F. M., Verloo M. G.

Polish Journal of Environmental Studies

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1994

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tom 03

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nr 3

A pot experiment was carried out under controlled conditions to evaluate the combined effect of chemical oxygen demand and heavy metals in synthetic irrigation water on the accumulation of heavy metals in perennial rye grass (Lolium perenne) grown during 30 days on two soils: an acidic sandy soil (pH = 4.0), and the same soil amended with 5% clay (pH = 6.7). The dry matter yield of rye grass decreased and heavy metal concentrations in plant tissue increased with heavy metal concentration in the irrigation water. A higher COD concentration in the irrigation water also resulted in an overall decrease of dry matter yield and higher metal contents. The addition of 5% clay to the acidic soil reduced these effects. However, the clay content of the soil was by far the most important factor in controlling plant growth and metal uptake.

10

Analysis of the removal of BOD5, COD and suspended solids in subsurface flow constructed wetland in Latvia

67%

Grinberga L., Grabuza D., Grinfelde I., Lauva D., Celms A., Sas W., Gluchowski A., Dzieciol J.

Acta Scientiarum Polonorum. Architectura

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2021

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tom 20

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nr 4

11

Experimental investigation of chemical oxygen demand, lignin and phenol removal from paper mill effluents using three-phase three-dimensional electrode reactor

67%

Ugurlu M., Karaoglu M. H., Kula I.

Polish Journal of Environmental Studies

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2006

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tom 15

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nr 4

The removal of chemical oxygen demand (COD), lignin and phenol from paper mill effluents was experimentally investigated using an electrode cell consisting of graphite electrode and powder-activated carbon (as working electrode). The effects of electrolyses time, voltage, initial pH, activated carbon (AC), NaCl amount and airflow were selected as parameters. The experimental results show that removal efficiency significantly depends on the applied cell voltage, airflow, time, salt amount and pH. For electrolyses under the conditions of 25.0V cell voltage, 5.0 min, in presence of air 2.0 minL-1, NaCl 5.0gL-1 at low pH and AC 20gL-1, it can be said that the removal of COD, lignin and phenol from the paper mill effluent were almost higher than 90%. The present study proves the effectiveness of electrochemical treatment for the highly concentrated organic pollutants present in paper mill effluents.

12

Analysis and assessment of technological processes of the Miedwie Lake surface water treatment plant for the city of Szczecin

59%

Wira J., Wira D.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

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2005

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tom 09

Miedwie Lake is the biggest post-glacial lake of the West-Pomeranian Voievodship. At the same time it is the fifth of the largest lakes in Poland. As regards the geographical situation, Miedwie Lake is situated centrally between three big agglomerations i.e. Szczecin, Stargard Szczecinski and Pyrzyce (Fig. 1). The lake lies on the territory of three municipalities: Pyrzyce and Warnice in the District of Pyrzyce as well as Stargard Szczecinski in the District of Stargard (Rozmiarek 1983, Szyper 1990). At the moment, the reservoir is characterised with the regular, prolonged shape resembling an ellipse. Banks are shallow, regular and sometime very wet. The lake has the belt of the nearshore reaching locally tens metres far from the lake bank, what is the reason, together with the fact that the wind blows always here, that it is convenient for practising the various kinds of water sports. The lake area amounts to 3 527 ha; maximal depth – 43.8 m; average depth – 19.3 m; water capacity – 681.7 mln m3; shore-line length – 38.8 km; water level datum 14.1 m above sea level; maximal width 3.16 km; maximal length 16.2 km. The lake’s bottom is the lowest situated area on the territory of Poland.

13

Elektrokoagulacja a koagulacja chemiczna. Porownanie metod oczyszczania sciekow celulozowo-papierniczych

51%

Smoczynski L., Wardzynska R., Zaleska-Chrost B.

Acta Scientiarum Polonorum. Formatio Circumiectus

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2004

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tom 03

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nr 2

3-14

14

Wskaźniki materii organicznej holomiktycznego Jeziora Wulpińskiego

51%

Tandyrak R., Grochowska J., Jendraszek M.

Acta Scientiarum Polonorum. Formatio Circumiectus

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2012

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tom 11

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nr 3

Badania prowadzono na holomiktycznym Jeziorze Wulpińskim położonym w okolicach Olsztyna. Próbki pobierano w okresie cyrkulacji jesiennej 2007 r. i wiosennej 2008 r. nad głęboczkami obu jego zatok i porównano w danymi wcześniejszymi. Zbiornik składa się z dwóch części: eumiktycznej tomaszkowskiej (459 ha, 22 m) i bradymiktycznej barwińskiej (246 ha, 54,6 m) oddzielonych od siebie przesmykiem o długości ok. 60 m i głębokości 3,8 m. Podzlewnie obu zatok różnią się wielkością i sposobem użytkowania. Część tomaszkowska jest bardziej narażona na presję turystyczną i w 62,7% użytkowana rolniczo, natomiast w podzlewni barwińskiej pola i łąki stanowią 46,3%. Znalazło to odzwierciedlenie w uzyskanych wynikach badań: akwen tomaszkowski charakteryzowała niższa widzialność krążka Secchiego (1,5–1,75 m), wyższe stężenie chlorofilu a (23,25– –26,19 mg ∙ m–3) i feofityny (60,11–64,77 mg ∙ m–3), większa ilość materii organicznej allochtonicznej i wyraźna tendencja wzrostowa tego parametru w naddennej warstwie wód. W puli azotu ogólnego dominowała forma organiczna (85–99%).

15

Wpływ zanieczyszczeń odprowadzanych z ubojni trzody chlewnej oraz masarni na jakość ścieków dopływających do oczyszczalni

51%

Bugajski P., Satora S.

Acta Scientiarum Polonorum. Formatio Circumiectus

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2011

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tom 10

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nr 2

W pracy przedstawiono analizę wpływu zanieczyszczeń opisanych wartościami BZT5, ChZT i zawiesiny ogólnej w ściekach bytowych oraz pochodzących z masarni i ubojni trzody chlewnej na ich stężenie w mieszaninie ścieków dopływającej do oczyszczalni Bioblok PS-50 w Gruszowie. Średnie stężenia badanych wskaźników w mieszaninie ścieków obliczono jako średnią ważoną. Stwierdzono, że gdy te stężenia są zbyt wysokie, skutkuje to zakłóceniami w pracy oczyszczalni. Średnie ważone poszczególnych wskaźników wynosiły: BZT5 – 592,1 mg O2 ∙ dm–3, ChZT – 974,8 mg O2 ∙ dm–3, zawiesiny ogólnej – 570,7 mg ∙ dm–3. Aby zmniejszyć stężenie zanieczyszczeń w mieszaninie surowych ścieków dopływających do oczyszczalni należy zwiększyć udział procentowy ścieków bytowych z 82% do 96%. Jest to możliwe poprzez rozbudowę sieci kanalizacyjnej i podłączenie do niej kolejnych gospodarstw domowych oraz dodatkową modernizację istniejących lub nowo zainstalowanych systemów podczyszczania ścieków przemysłowych w miejscu ich powstania.

16

Jakość wody potoku Osielczyk w perspektywie budowy małego zbiornika retencyjnego

34%

Stachura T.

Acta Scientiarum Polonorum. Formatio Circumiectus

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2013

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tom 12

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nr 2

Praca przedstawia wyniki badań wskaźników jakości wody potoku Osielczyk, na którym planowana jest budowa małego zbiornika wodnego w ramach programu małej retencji województwa małopolskiego. Oznaczenia indykatorów biologicznych (wskaźnik okrzemkowy) oraz fizykochemicznych (26) zostały wykonane w 2010 r. Wyniki wskazują, że woda potoku zalicza się do I klasy jakości i może być przeznaczona do spożycia przez ludzi, nie jest także zagrożona eutrofizacją. Ponadto po ewentualnym wybudowaniu zbiornik mógłby pełnić rolę kąpieliska.

17

Regeneracja terenow nawadnianych sciekami miejskimi

34%

Kostrzewa S., Paluch J., Paruch A., Pulikowski K.

Acta Scientiarum Polonorum. Formatio Circumiectus

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2003

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tom 02

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nr 2

93-102

Ograniczanie wyników

Preliminary studies on the use of Fenton reagent to reduce pollution from wastewater from the production of household chemicals

Comparison of saprobical analyses using plankton in the tributaries of the Upper Tisa, Hungary in 2001-2002

Assessment of readily biodegradable organic matter in Vilnius municipality's wastewater: a case study

COD, TN and TP removal of Typha wetland vegetation of different structures

Characterization and biological treatability of edible oil wastewaters

Natural treatment of woolen processing industry wastewater

Impact of dissolved oxygen on hospital wastewater quality treated by SBBR in Basrah city, Iraq

Simultaneous generation of bioelectricity and treatment of swine wastewater in a microbial fuel cell

Chemical composition of rye-grass as affected by chemical oxygen demand and heavy metal concentration in irrigation water and clay content of the soil

Analysis of the removal of BOD5, COD and suspended solids in subsurface flow constructed wetland in Latvia

Experimental investigation of chemical oxygen demand, lignin and phenol removal from paper mill effluents using three-phase three-dimensional electrode reactor

Analysis and assessment of technological processes of the Miedwie Lake surface water treatment plant for the city of Szczecin

Elektrokoagulacja a koagulacja chemiczna. Porownanie metod oczyszczania sciekow celulozowo-papierniczych

Wskaźniki materii organicznej holomiktycznego Jeziora Wulpińskiego

Wpływ zanieczyszczeń odprowadzanych z ubojni trzody chlewnej oraz masarni na jakość ścieków dopływających do oczyszczalni

Jakość wody potoku Osielczyk w perspektywie budowy małego zbiornika retencyjnego

Regeneracja terenow nawadnianych sciekami miejskimi