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1

Water Quality Assessment of the Morava e Binçës River Based on the Physicochemical Parameters and Water Quality Index

100%

Musliu M. , Bilalli A. , Durmishi B. , Ismaili M. , Ibrahimi H.

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tom Vol. 19, nr 6

104--112

EN

The quality of surface waters is being impacted by the anthropogenic and natural pollution, thus limiting the usage of this water for drinking, industry, agriculture, recreation and other purposes. The water quality indices are intended to provide a single value for the water quality of a source or a stream that reduces the large amount of parameters in a simpler expression and enables an easy interpretation of the monitoring data. During 2017, seventeen physicochemical parameters were measured in spring, summer, autumn and winter, in five locations along the Morava e Binçës River in Kosovo. For the assessment we employed the Water Quality Index (WQI) which uses the physicochemical parameters for the evaluation of the water quality. The findings of this study ascertain that MB1 station had the best quality with a value of WQI 88 and is classified in the Good Category, whereas the lowest quality of water was found on in MB4 station with a value of WQI 65 and it is thus classified in the Fair Category. Finally, the average WQI was calculated for the entire measurement period and it resulted in a value of 77.60 indicating that the Morava e Binçës River waters belong to the Fair Category.

2

Functional properties of neem oil as potential feedstock for biodiesel production

86%

Bhandare P. , Naik G. R.

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tom 07

EN

Fossil fuel resources are decreasing daily while biodiesel fuels are attracting increasing attention worldwide as blending components or direct replacements for diesel fuel in vehicle engines. In this experiment the seed oils of 30 Neem (Azadirachta indica. A. juss) biotypes were screened and evaluated for their physio-chemical parameters for oil content, biodiesel yield, density, viscosity, iodine value , free fatty acid and saponification value. Hence the neem seed oil tested in this current study could be the potential sources of raw material for biodiesel production.

3

Anthropogenic Activities Impact on the Physicochemical and Bacteriological Quality of Water in Dayat Roumi Lake, Morocco

86%

Ihsane O. , Zahra E. , Imad A. , Mohammed E. , Abdeslam A. , Mohamed F.

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tom Vol. 23, iss. 4

162--172

EN

Dayat Roumi Lake, a vast body of permanent and shallow water in Morocco, is exposed to urban, tourist, and agricultural constraints. This human intervention can lead to microbial pollution of the lake ecosystem, hence the need to assess this contamination. For this reason, we undertook in this study an evaluation of the microbiological quality of the lake’s water. Thus, seasonal water samples were taken at eight selected stations, taking into account the reception sites of the tributaries and anthropic activities. The parameters determined were: temperature, pH, dissolved oxygen (DO), electrical conductivity, biological oxygen demand (BOD), chemical oxygen demand (COD), ammonium, nitrates, orthophosphates, total phosphate, total coliforms, fecal coliforms and fecal streptococci. The results reveal: (1) A high water conductivity exceeding the admissible value recommended by the Moroccan standard; (2) A significant presence of coliforms and fecal streptococci, in dry periods, exceeding the standards set by the WHO, which could be attributed to a summer temperature favorable to the development of coliforms. This fecal contamination leads to an increased consumption of dissolved oxygen (high BOD and low DO values) explaining the fish mortality in this period of the year; (3) The principal component analysis identified the sources of water quality degradation as domestic sewage, agricultural run-off, domestic waste, and human and animal excreta; (4) The hierarchical analysis divided the sampling stations into three different clusters. The results of the microbiological quality index classified the waters from not to highly polluted. Station 4 was classified as the most polluted site. The results of the COD/BOD ratio showed a spatial and temporal heterogeneity of the biodegradability of the oxidizable matter present in the lake waters.

4

Study of Physicochemical and Bacteriological Quality of Treated Wastewater by the New Aourir Plant (Southwestern of Morocco) Using Activated Sludge Technology in a Semi-Arid Region

86%

Hajji S. , Ait Alla A. , Noureddine S. , Haddad M. B. , Moukrim A.

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tom Vol. 22, nr 6

83--98

EN

In order to use the purified wastewater for the irrigation of a golf course in the Taghazout area (Southwestern of Morocco), this study was conducted to evaluate the physicochemical and bacteriological quality of the treated wastewater in the new Aourir plant (Activated Sludge technology). In order to achieve these objectives, three types of water were analyzed: raw water (RW), biologically treated water (BTW) and water treated by ultraviolet radiation (UV-TW). The physicochemical parameters analyzed were Temperature, pH, Electrical Conductivity (EC), Dissolved Oxygen (DO), Chemical Oxygen Demand (COD), five-day Biological Oxygen Demand (BOD5), Total Suspended Solids (SS), Nitrate (NO3), and Orthophosphates (PO4). Otherwise, the analyzed biological parameters are Total Coliforms (TC), Fecal Coliforms (FC), Escherichia coli (E. coli), and Fecal Streptococci (FS). The physicochemical parameters showed that temperature is always lower than 30°C, the pH is close to neutrality and a strong fluctuation of the high electrical conductivity (2700 μS/cm) occurs in UV-TW. At all stages of wastewater treatment, COD, BOD5, SS, NO3 and PO4 were below the limit values recommended by Moroccan standards. The bacteriological results showed a high level of bacterial contamination in RW and BTW, but in UV-TW the loads did not exceed 3 log10. The average loads of TC, FC, E. coli and FC in UV-TW were 2.13, 1.67, 1.77, and 2 (log10 CFU/100ml) respectively. Activated sludge treatment combined with UV has demonstrated sufficient quality to reuse treated water in irrigation; however, the UV treatment requires control to avoid any effect on the microbiological and physicochemical quality of green spaces and groundwater.

5

Winter phycoflora and physico-chemical parameters of a humic lake-stream system in the Kuznik Nature Reserve [the Wielkopolska Region, Poland]

86%

Owsianny P. M. , Sobczynski T. , Niedzielski P.

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tom 67

6

Dynamics of chosen species of phyto- and zooplankton in a deep submontane dam reservoir in light of differing life strategies

86%

Wilk-Wozniak E. , Pociecha A.

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nr Suppl.1

7

The comparison of the physicochemical parameters and antioxidant activity of homemade and commercial pomegranate juices

72%

Dzugan M. , Wesolowska M. , Zagula G. , Puchalski C.

Acta Scientiarum Polonorum. Technologia Alimentaria

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2018

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tom 17

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nr 1

8

Seasonal influence of physico-chemical parameters on phytoplankton diversity, community structure and abundance at Parangipettai coastal waters, Bay of Bengal, South East Coast of India

72%

Vajravelu M. , Martin Y. , Ayyappan S. , Mayakrishnan M.

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nr 2

9

Effect of disinfectants on physicochemical parameters of litter, microbiological quality of poultry house air, health status and performance of broiler chickens

72%

Mituniewicz T. , Sowinska J. , Wojcik A. , Iwanczuk-Czernik K. , Witkowska D. , Banas J.

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nr 5

745-750

EN

The applied disinfectants affected the improvement of physicochemical parameters of litter by decreasing its moisture and pH. It was demonstrated that the addition of decontaminating agents to litter resulted in a beneficial decline in the microflora of poultry house air. The total count of mesophilic bacterium was reduced most effectively by means of a disinfectant, whereas the total number of fungi and moulds – by calcium oxide (CaO). But no differences were observed in ammonia concentration in the air of the hen houses examined. In poultry houses in which disinfectants were added to litter, the reported death rate and culling percentage were lower as compared to a control broiler house. Birds reared in a broiler house in which litter was disinfected with CaO achieved the highest European Index of Productivity (EIP).

10

Comparative assessment of SL/CF SAE 5W/30 lubricating oil service in engines fuelled by 95 hydrocarbon gasoline and gasoline with 5%(V/V) ethanol additive

72%

Jakobiec J. , Mazanek A.

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tom 09

11

Physicochemical parameter of palm oil and soil from Ihube community, Okigwe, Imo State Nigeria

72%

Enyoh C. E. , Ihionu E. A. , Verla A. W. , Ebosie P. N.

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tom 62

EN

This study assessed the quality of palm oil and soil from Ihube community, Okigwe L.G.A of Imo state in October 2015. The soil samples were collected from the top soil and the palm oil were collected immediately after extraction. Palm oil and soil were analyzed using standard analytical methods and the results obtained were compared to standards. The physicochemical analysis of the soil samples showed that ranges of EC (323.33±0.57-480.33±1.53 us/cm); Moisture Content (MC) ranged from 20.9±0.80 to 40.8±0.10); %SOM (1.92±0.61-4.85±0.01) which were within the acceptable limits while CEC, iron content and lead were not significant. Palm oil samples had MC (0.32±0.09%) which was above the acceptable limit. The oil was acidic and free fatty acid (FFA) result for 10days showed even much acidic ranges from (2.15±0.01 to 6.07±0.05 mgNaOH/g) with Fe, (2.00±0.01 to 5.43±0.51 mgNaOH/g) with Pb and (1.27±0.03 to 5.04±0.03 mgNaOH/g) without contamination. This was tested using anova at p < 0.05 respectively and there was a significant difference between the results. However, the result obtained from these areas shows good quality soil for palm tree cultivation.

12

Assessment of water physico-chemical characteristics and statistical evaluation of Narmada Estuarine Region, Gujarat, India

72%

Nirmal Kumar I. J. , Basil G. , Nirmal Kumar R. , Sajish P. R. , Shailendra V.

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nr 16

13

Abundance and biomass of the ciliate community during a spring cruise in the Gulf of Gabes [Eastern Mediterranean Sea, Tunisia]

72%

Hannachi I. , Drira Z. , Belhassen M. , Hamza A. , Ayadi H. , Bouain A. , Aleya L.

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tom 47

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nr 4

293-305

14

Development of tools for ecological quality assessment in Polish marine areas according to the Water Framework Directive. Part III - Secchi depth

72%

Lysiak-Pastuszak E. , Krzyminski W. , Lewandowski L.

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tom 38

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nr 3

113-124

15

Quality evaluation of smoked cooked pork loins offered for retail sales on the Cracow market

72%

Kosowska M. , Rychlicka-Rybska J. , Fortuna T. , Rutkowska A.

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2014

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nr 4

16

Long-term cyanobacterial dynamics as related to physicochemical water parameters in a restored urban lake

72%

Zebek E.

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nr 1

EN

The aim of this study has been to determine the response of cyanobacteria to the lake protection and restoration measures implemented in the littoral zone of an urban lake called Jeziorak Mały. The first investigations were conducted in 1996 and were resumed in 1997-2003, 2005 and 2013, following the installation of a separator and the creation of stone accumulation sites. Long-term changes in phytoplankton cyanobacterial proportions, abundance and biomass were analyzed in relation to environmental conditions at the sites in the littoral zone (S – separator pipes, K – sites with stones and R – sites with macrophytes). Relationships between cyanobacteria and water chemistry variables were analyzed by calculating the Spearman’s rank correlation coefficient, and then with canonical correspondence analysis (RDA). The results provided evidence that water temperature, total nitrogen and iron concentration (S, R), but also PO43- in spring (S,K) were the principal factors affecting cyanobacterial development. There was a significant decrease in the share, abundance and biomass of cyanobacteria coinciding with a decrease in conductivity and PO43- following the onset of lake restoration efforts. Changes in dominant species from the ones typical in hypertrophic lakes to those typically found in eutrophic lakes took place during the research. The modifications indicated a strong initial response of cynaobacteria to the restoration measures, but the situation stabilized in 2013, when cyanobacteria returned to their previous average levels. This suggests that the introduction of lake restortation measures contributed to the lake’s improved water quality and they should be retained for efficient lake management in the future.

17

Comparison of the physicochemical and sensory characteristics of Rhode Island Red (R-11) capons and cockerels

72%

Calik J. , Krawczyk J. , Swiatkiewicz S. , Gasior R. , Wojtycza K. , Poltowicz K. , Obrzut J. , Puchala M.

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tom 17

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nr 3

18

Studies on some physico-chemical parameters of cyanophycean members and correlation coefficient of eutrophic ponds in Chidambaram, Tamil Nadu, India

72%

Elayaraj B. , Selvaraju M.

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nr 2

EN

The present study deals with the statistical analysis of physico-chemical parameters and cyanophycean members of two pond water quality of Chidambaram, Cuddalore district (Tamil Nadu). The qualities of pond water were analyzed for six months. Eleven important parameters were included in statistical analysis. The qualities of pond water have been assessed by calculating mean, standard deviation and correlation coefficient. Correlation studies of hydrobiology with physico-chemical parameters revealed that the relationship between phytoplankton density in general and that of the specific groups are highly complex and often controlled by interactions of different factors. In the both pond water the correlation coefficient test revealed that cyanophycean members positively correlated with temperature, pH, CO2, alkalinity, hardness, nitrate, BOD and COD at 1 % and 5 % level significant, where as it is negatively correlated with acidity and dissolved oxygen. In the present study it can be concluded that the cyanophycean members are highly tolerant organisms. They prefer to grow at higher temperatures and in highly alkaline, BOD and COD waters. Hence they can with stand high levels of contaminated waters of Thillai Kali Kovil pond, when compared to Ilamiyakkinar Kovil pond.

19

Annual succession patterns of blue-green algae as related to physicochemical water parameters in the urban Lake Jeziorak Maly in the 1998-2003 period

72%

Zebek E.

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tom 34

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nr 4

20

Physico-chemical parameters and heterotrophic microorganisms of underground waters of Omulewskie Reservoir aquifers in the Mazurian Lake District

72%

Kochanska E. , Niewolak S.

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nr 1

EN

This work presents the results of research on physico-chemical and microbiological amounts of heterotrophic bacteria, Actinomycetes, filamentous and yeast fungi in underground waters of aquifers of Omulewskie Reservoir in the Mazurian Lake District in 1989-1992/1993. The examination included water from 11 wells (20-64 m) and 3 piezometric bore-holes (6.5-23.5 m) on woodland (control well), managed by individual farmers and on large farms. Colour of water, pH, dry mass, and total hardness of the examined water samples did not exceed the values accepted for natural hydrochemical background. Electrolytic conductivity rarely exceeded 400 μS/cm. The concentration of the main cations and anions classifies the waters of the examined wells into four types: 1. carbonate-calcium-magnesium; 2. carbonate-calcium; 3. carbonate-chloride-calcium and 4. carbonate-calcium-sulphate. The concentration of oxygen was the lowest in the water from wells situated on large farms, the highest on the area of woodland; on the contrary BOD5. Oxidability only in the water of the wells on the woodland area was the same as the values accepted for the natural hydrochemical background. The amount of total nitrogen was the lowest in the water from the wells situated on large farms and it was correlated with respectively low or high amounts of total phosphorus. The amount of iron reached higher values only in the water of some wells on the area of large farms. Heterotrophic bacteria with higher optimal temperatures and oligotrophic bacteria were the most numerous among heterotrophic microorganisms. Actinomycetes and filamentous fungi were rare and in minimal quantities. There were more yeast fungi, especially those which did not produce carotenoid dyes.