Search results

1

Indicators of water consumption and the quantity of wastewater formed in selected branches of food industry

100%

Strzelczyk M., Steinhoff-Wrześniewska A., Rajmund A.

Polish Journal of Chemical Technology

|

2010

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vol. 12

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issue 4

6-10

EN

The studies covered the branches: sugar industry, fruit-and-vegetable processing and potato processing plants. The analyses of water consumption and quantities of wastewater formed in 24 production plants were performed in the paper. A comparison of water and wastewater management in three branches showed that the highest water consumption is in fruit-and-vegetable processing. The data collected in the paper indicates the drop of water consumption in potato as well as fruit-and-vegetable industry. The values obtained for sugar industry indicate that it is the least diversified branch.

2

Breast Support Garments are Ineffective at Reducing Breast Motion During an Aqua Aerobics Jumping Exercise

100%

Mills C., Ayres B., Scurr J.

Journal of Human Kinetics

|

2015

|

vol. 46

|

issue 1

49-58

EN

The buoyant forces of water during aquatic exercise may provide a form of ‘natural’ breast support and help to minimise breast motion and alleviate exercise induced breast pain. Six larger-breasted females performed standing vertical land and water-based jumps, whilst wearing three breast support conditions. Underwater video cameras recorded the motion of the trunk and right breast. Trunk and relative breast kinematics were calculated as well as exercised induced breast pain scores. Key results showed that the swimsuit and sports bra were able to significantly reduce the superioinferior breast range of motion by 0.04 and 0.05 m, respectively, and peak velocity by 0.23 and 0.33 m/s, respectively, during land-based jumping when compared to the bare-breasted condition, but were ineffective at reducing breast kinematics during water-based jumping. Furthermore, the magnitude of the swimsuit superioinferior breast range of motion during water-based jumping was significantly greater than land-based jumping (0.13 m and 0.06 m), yet there were no significant differences in exercise induced breast pain, thus contradicting previously published relationships between these parameters on land. Furthermore, the addition of an external breast support garment was able to reduce breast kinematics on land but not in water, suggesting the swimsuit and sports bras were ineffective and improvements in swimwear breast support garments may help to reduce excessive breast motion during aqua aerobic jumping exercises.

3

Microflora of the selected water reservoirs in Swietokrzyskie Voivodship

100%

Adamus-Bialek W., Karwacka K., Bak L.

Acta Biochimica Polonica

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2013

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vol. 60

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issue 4

689-693

EN

One of the important environmental issues is the quality of surface waters in the world. Poland belongs to countries with a low quality of the inland waters. The sanitary condition of the five water reservoirs of south-east Poland was analyzed. Water and sediment samples were incubated on the selective and/or differential media. High concentrations of many common and pathogenic microbial indicators were shown in those samples. Those reservoirs are used by people, especially during summer. Because of the high epidemiological risk, detailed analysis of all inland waters should be performed routinely.

4

An application of a water assessment and simulation model in the remediation of the eutrophication capacity of a tropical water system: Case study the Lake Obili in Yaounde (Cameroon)

88%

Ajeagah G. A., B A. W. V., Nkeng G. E.

Journal of Water and Land Development

|

2017

|

issue 33

5

Global experience on irrigation management under different scenarios

88%

Valipour M.

Journal of Water and Land Development

|

2017

|

issue 32

6

Monitoring and remediation technologies of organochlorine pesticides in drainage water

88%

Ismail A., Derbalah A., Shaheen S.

Polish Journal of Chemical Technology

|

2015

|

vol. 17

|

issue 1

115-122

EN

This study was carried out to monitor the presence of organochlorine in drainage water in Kafr-El-Sheikh Governorate, Egypt. Furthermore, to evaluate the efficiencies of different remediation techniques (advanced oxidation processes [AOPs] and bioremediation) for removing the most frequently detected compound (lindane) in drainage water. The results showed the presence of several organochlorine pesticides in all sampling sites. Lindane was detected with high frequency relative to other detected organochlorine in drainage water. Nano photo-Fenton like reagent was the most effective treatment for lindane removal in drainage water. Bioremediation of lindane by effective microorganisms (EMs) removed 100% of the lindane initial concentration. There is no remaining toxicity in lindane contaminated-water after remediation on treated rats relative to control with respect to histopathological changes in liver and kidney. Advanced oxidation processes especially with nanomaterials and bioremediation using effective microorganisms can be regarded as safe and effective remediation technologies of lindane in water.

7

Monitoring of organophosphorus pesticides and remediation technologies of the frequently detected compound (chlorpyrifos) in drinking water

88%

Derbalah A., Ismail A., Shaheen S.

Polish Journal of Chemical Technology

|

2013

|

vol. 15

|

issue 3

25-34

EN

Studies on the currently used organophosphorus insecticides with respect to their environmental levels and effective remediation technologies for their residues in water have been considered as a source of major concern. This study was carried out to monitor the presence of organophosphorus in drinking water plants (Kafr-El-Shiekh, Ebshan, Elhamoul, Mehalt Aboali, Fowa, Balteem and Metobess) in Kafr-El-Shiekh Governorate, Egypt. Furthermore, it was carried out to evaluate the efficiency of different remediation technologies (advanced oxidation processes and bioremediation) for removing chlorpyrifos in drinking water. The results showed the presence of several organophosphorus pesticides in water sampling sites. Chlorpyrifos was detected with high frequency relative to other compounds in drinking water. Nano photo-Fenton like reagent (Fe2O3(nano)/H2O2/UV) was the most effective treatment for chlorpyrifos removal in drinking water followed by ZnO(nano)/H2O2/UV, Fe3+/H2O2/UV and ZnO/H2O2/ UV, respectively. Bioremediation of chlorpyrifos by effective microorganisms (EMs) removed 100% of the chlorpyrifos initial concentration after 23 days of treatment. There is no remaining toxicity in chlorpyrifos contaminated-water after remediation on treated rats with respect to cholinesterase activity and histological changes in kidney and liver relative to control. Advanced oxidation processes especially with nanomaterials and bioremediation with effective microorganisms can be regarded as safe and effective remediation technologies for chlorpyrifos in drinking water.

8

Quantitative determination of hexavalent chromium in aqueous solutions by UV-Vis spectrophotometer

88%

Fournier-Salaün M.-C., Salaün P.

Open Chemistry

|

2007

|

vol. 5

|

issue 4

1084-1093

EN

In the last decade, different methods have been developed for the determination of chromium(VI) concentration in water. These methods use high cost equipment or they require a long preparation time. Because of their drawbacks, this paper describes an on-line, rapid and sensitive procedure for the determination of Cr(VI) concentrations in aqueous solutions via pH and absorption measurements. Only four Cr(VI) species are considered. The effects of pH and of total amount of chromium on the Cr(VI) speciation are investigated. The molar absorptivities of four chromium species at 371 nm are determined by minimising an objective function. The knowledge of these molar absorptivities and the measurements of pH and absorption at 371 nm lead to a rapid determination of total Cr(VI) concentration. The reliability and applicability of the method were confirmed using synthetic water samples. [...]

9

Conceptual analysis of urban water management considering climate change scenarios

88%

Halefom A., Khare D., Sisay E., Teshome A., Worku T., Tadesse D., Dananto M.

|

2020

|

vol. 28

51-66

EN

Since the trends of adverse climate change and integrated urban water management have continued in the twenty-first century, governments and other institutions seek reliable predictions as water resource requirements arise. Although uncertainty is never cut off from the need for a probabilistic movement, through current developments in science and the technology of hydrological modeling on urban water management analysis, researchers can improve the ability to create realistic scenarios that will benefit the water sector it adapts to these changes. Model studies on the combined effects of climate change and the water sector have found that the change can be significant, depending on scenarios and the assumptions of climate change, as well as the degree of urban development. In this work, conceptual analysis of urban water management has been applied to several scenarios of climate change in order to obtain new insights and uncertainties.

10

Occurrence of Phytophthora ramorum and other Phytophthora species in nurseries, trade stands, forests and water

75%

Orlikowski L. B., Oszako T., Trzewik A., Orlikowska T.

Journal of Plant Protection Research

|

2007

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vol. 47

|

issue 4

11

Molecular dynamics simulation of an aqueous Na2SO4 solution

75%

Nieszporek K., Nieszporek J.

Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia

|

2017

|

vol. 72

|

issue 2

EN

The structure of sodium sulfate in tip3p water solution with the concentration of 0.1191 mol/dm3 was studied by means of classical molecular dynamics. Both ions have clear hydration shells. The comparison between radial distribution functions and cumulative numbers of selected atoms around the reference one makes it possible to precisely describe the structure of investigated system. Applying such tools geometrical parameters of the hydrogen bond of the dimer SO42-/H2O have been obtained.

12

Evaluation of dispersive liquid-liquid microextraction for the determination of cobalt and cadmium by flame atomic absorption spectrometry: application in water and food samples

75%

Bosch Ojeda C., Sánchez Rojas F.

|

issue 1

EN

Dispersive liquid-liquid microextraction (DLLME) was applied to the separation and preconcentration of Cd(II) and Co(II) from water and food samples. The influence of the following analytical parameters on the quantitative recoveries of cadmium and cobalt were investigated: pH, extraction solvent volume, dispersing solvent volume and type, and concentration of chelating agent. Under the optimized conditions, the detection limits were 2 μg L-1 and 13 μg L-1 for Cd(II) and Co(II), respectively. The proposed method was validated by the analysis of certified samples and has been applied to the determination of these ions in environmental water samples, with recoveries of 98 – 101% for Co(II) and 94 – 120% for Cd(II). In food samples the recoveries fell between 100 – 110% and 101-120% for Co(II) and Cd(II), respectively.

13

Waterside dwelling. Functional and architectural conditions

75%

Tulkowska-Słyk K., Tulkowska-Słyk K.

Journal of Water and Land Development

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2020

|

issue 47

14

The influence of urea on the K2CO3and NH4VO3solubility in the K2CO3+ NH4VO3+ H2O system

75%

Kiełkowska U.

Polish Journal of Chemical Technology

|

2008

|

vol. 10

|

issue 4

25-27

EN

The influence of urea on the vanadium(V) and potassium ion concentrations in the K2CO3 + NH4VO3 + H2O system was determined in the temperature range of 293 K to 313 K. Additionally, the solution density dependence versus the urea concentration was presented. These data are essential for the assessment of optimum operating conditions for the new production process of potassium carbonate.

15

Influence of the silver nanoparticles on microbial community in different environments

75%

Pietrzak K., Gutarowska B.

|

issue 4

721-724

EN

The aim of this study was to assess the influence of silver nanoparticles (AgNPs) on the number and diversity of microbial community in different environments (soil extract, water, sewage), and to determine whether the environment inhibits or accelerates the influence of AgNPs on moulds. AgNPs (45 ppm) present in the environment decreased bacterial (91%) and fungal (33-85%) numbers, and eliminated some strains, e.g., Alternaria alternata and Cryptococcus laurentii. Based on the biomass growth of Aspergillus niger and Penicillium chrysogenum in a medium with AgNPs and the environmental samples, it was noticed that environment can enhance (soil extract) or inhibit (sewage) antifungal activity of AgNPs.

16

Management model for water demand using the WEAP tool: Case of Setif Province– Algerian highlands

75%

Bouznad I. E., Elahcene O., Belksier M. S., Bouznad I. E., Elahcene O., Belksier M. S.

Journal of Water and Land Development

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2020

|

issue 45

17

Heavy metal contamination in water, sediments and Planiliza subviridis tissue in the Donan River, Indonesia

75%

Siregar A. S., Sulistyo I., Prayogo N. A., Siregar A. S., Sulistyo I., Prayogo N. A.

Journal of Water and Land Development

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2020

|

issue 45

18

Sampling, metadata and DNA extraction - important steps in metagenomic studies

75%

Felczykowska A., Krajewska A., Zielińska S., Łoś J.

|

issue 1

151-160

EN

Metagenomic studies have become increasingly popular. They allow for the estimation of biodiversity in complex populations. This diversity presents an enormous but largely unexpected genetic and biological pool and can be exploited for the recovery of novel genes, entire metabolic pathways and their products. Generally metagenomic study is a genomic analysis of organisms by direct extraction and cloning of DNA from their natural environment. The most common problems of modern metagenomics are as follows: majority of the microorganisms present in the environment cannot be cultivated by standard techniques, DNA extraction methods are not very effective, isolated DNA is contaminated with various compounds, a choice for a screening method is not obvious.

19

Biofouling reduction for improvement of depth water filtration. Filter production and testing

75%

Sztuk-Sikorska E., Leon G.

Chemical and Process Engineering

|

2016

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vol. 37

|

issue 3

20

Evolution of capture technologies of water in the oases: Moghrar, Tiout and Boussemghoun (Algeria)

75%

Hadidi A., Remini B., Habi M.

Journal of Water and Land Development

|

2018

|

issue 37

Refine search results

Indicators of water consumption and the quantity of wastewater formed in selected branches of food industry

Breast Support Garments are Ineffective at Reducing Breast Motion During an Aqua Aerobics Jumping Exercise

Microflora of the selected water reservoirs in Swietokrzyskie Voivodship

An application of a water assessment and simulation model in the remediation of the eutrophication capacity of a tropical water system: Case study the Lake Obili in Yaounde (Cameroon)

Global experience on irrigation management under different scenarios

Monitoring and remediation technologies of organochlorine pesticides in drainage water

Monitoring of organophosphorus pesticides and remediation technologies of the frequently detected compound (chlorpyrifos) in drinking water

Quantitative determination of hexavalent chromium in aqueous solutions by UV-Vis spectrophotometer

Conceptual analysis of urban water management considering climate change scenarios

Occurrence of Phytophthora ramorum and other Phytophthora species in nurseries, trade stands, forests and water

Molecular dynamics simulation of an aqueous Na2SO4 solution

Evaluation of dispersive liquid-liquid microextraction for the determination of cobalt and cadmium by flame atomic absorption spectrometry: application in water and food samples

Waterside dwelling. Functional and architectural conditions

The influence of urea on the K2CO3and NH4VO3solubility in the K2CO3+ NH4VO3+ H2O system

Influence of the silver nanoparticles on microbial community in different environments

Management model for water demand using the WEAP tool: Case of Setif Province– Algerian highlands

Heavy metal contamination in water, sediments and Planiliza subviridis tissue in the Donan River, Indonesia

Sampling, metadata and DNA extraction - important steps in metagenomic studies

Biofouling reduction for improvement of depth water filtration. Filter production and testing

Evolution of capture technologies of water in the oases: Moghrar, Tiout and Boussemghoun (Algeria)