Role of colloids in heavy metal transfer through a retention-infiltration basin

Runoff waters from a main bridge near Nantes (France), surface waters and pore waters in the infiltration basin collecting runoff were analysed after filtration and ultrafiltration to investigate the role of colloids in the transfer of trace metals (Zn, Cu and Pb) from the road to the groundwater. The role of the basin in mitigation of the variations of physico-chemical parameters and chemical elements concentrations was confirmed. An increase of mobile colloidal phase by comparison with runoff and high concentrations of trace metals were observed in pore waters of the sediment. Up to 100% of Pb and 60% of Cu and Zn may be associated to compounds having a molecular weight above 5 kDaltons. Principal component analysis outlined the variability of the influence of the physico-chemical parameters on trace metals concentrations for the different waters. Speciation calculations pointed out the potential precipitation of Fe and Al oxyhydroxides in all kind of waters.

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Hydrochemical Characterisation of Groundwater Quality: Merdja Plain (Tebessa Town, Algeria)

Civil Engineering Journal ◽

10.28991/cej-2020-03091473 ◽

2020 ◽

Vol 6 (2) ◽

pp. 318-325 ◽

Cited By ~ 11

Author(s):

Baazi Houria ◽

Kalla Mahdi ◽

Tebbi Fatima Zohra

Keyword(s):

Groundwater Quality ◽

Principal Component ◽

Anthropogenic Factors ◽

Agricultural Activity ◽

Chemical Parameters ◽

Physico Chemical ◽

High Concentrations ◽

Geological Formations

The objective of this work is to evaluate the physico-chemical quality of the groundwater of the Merdja plain and to determine the sources of mineralization. This quality is influenced by several environmental and anthropogenic factors such as geological context, climate, precipitation and interaction between groundwater and aquifers and human activities. A Principal Component Analysis (PCA) on samples taken from several wells spread over the entire Tebessa plain (Merdja) allowed us to detect two axes that explain 73.4% of the information. The first axis describes the variables related to mineralisation and the second one describes those related to agricultural activity. Multidimensional Positioning (MDS) confirmed the interaction of physico-chemical parameters between them and their influence on groundwater quality by highlighting three groups of wells according to their physico-chemical characteristics, particularly those containing high concentrations of nitrates. This contamination is mainly the result of spreading the fertilisers and wastes that are dumped into the plain without treatment. Salinization is the result of long-term interactions between groundwater and geological formations.

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Assessment of diversity and physico-chemical parameters of cyanobacteria, diatoms and other algal species in the paddy fields of Belagavi district, Karnataka

Plant Science Today ◽

10.14719/pst.2020.7.3.753 ◽

2020 ◽

Vol 7 (3) ◽

pp. 378-382

Author(s):

Santoshkumar Jayagoudar ◽

Pradeep Bhat ◽

Ankita Magdum ◽

Duradundi Sakreppagol ◽

Laxmi Murgod ◽

...

Keyword(s):

Algal Species ◽

Soil Samples ◽

Chemical Parameters ◽

Range Estimation ◽

The North ◽

Physico Chemical ◽

Water And Soil Samples ◽

Study Sites ◽

Good Range

Algae are the diverse group of organisms in the soil and aquatic environment. The role of them in soil fertility enhancement has been extensively studied worldwide. Belagavi is a tropical agricultural belt in the North Karnataka region with highly fertile soil. Water and soil samples were collected randomly from the paddy field of 15–20 well-distributed spots in 4 selected locations viz Kusumali, Jamboti, Kinaye and Piranwadi. The identification revealed the presence of 94 species and 71 genera in the investigated sites. Among all, 62 species belonged to Bacillariophyceae, 14 species to Chlorophyceae, 10 species to Cyanophyceae, 3 to Xanthophyceae, followed by Trebouxiophyceae and Zygnematophyceae (2 species each) and one species of Ulvophyceae. The maximum number of 62 species was recorded from Kusamali, followed by 49 species in Kinaye, 44 in Jamboti and 35 in Piranwadi. The month of February had the highest number of species (61), decreased to 45 in March, 42 in April and 37 in May. Among the physicochemical parameters analysed for the soil samples, it was found that the pH of the soil is slightly acidic in all the study sites ranged between 5.03–5.85. Further, the electrical conductivity (EC) varied from 0.27–0.345 dS/m, found to be in a good range. Estimation of available micro and macronutrients of soil were measured, and it was found to be at low to moderate levels. The present study indicates the extensive distribution of different classes of algae in the rice fields of four study locations in Belagavi.

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Seasonal distribution and population dynamics of limnic microalgae and their association with physico-chemical parameters of river Noyyal through multivariate statistical analysis

Scientific Reports ◽

10.1038/s41598-019-51542-w ◽

2019 ◽

Vol 9 (1) ◽

Cited By ~ 1

Author(s):

Pandian Suresh Kumar ◽

Jibu Thomas

Keyword(s):

Statistical Analysis ◽

Multivariate Statistical Analysis ◽

Sampling Site ◽

Principal Component ◽

Environmental Parameters ◽

Diversity Indices ◽

Population Diversity ◽

Chemical Parameters ◽

Multivariate Statistical ◽

Physico Chemical

Abstract The present investigation embarks on understanding the relationship between microalgal species assemblages and their associated physico-chemical parameter dynamics of the catchment region of river Noyyal. Totally, 142 microalgae cultures belonging to 10 different families were isolated from five different sites during four seasons and relative percentage distribution showed that Scenedesmaceae (36.6%) and site S1 (26.4%) with predominant microalgae population. Diversity indices revealed that microalgae communities were characterized by high Hʹ index, lower Simpson dominance, and Margalef index value with indefinite patterns of annual variations. Results showed that variation in the physico-chemical parameters in each sampling site has its impact on the microalgae population during each season. Multivariate statistical analysis viz., Karl Pearson’s correlation coefficient, principal component analysis, and canonical correspondence analysis were applied on microalgae species data, to evaluate the seasonal relationship between microalgae and physico-chemical parameters. The findings of our study concluded that the physico- chemical parameters influenced the dominant taxa of microalgae Chlorellaceae, Scenedesmaceae and Chlorococcaceae in river Noyyal and gives a base data for the seasonal and dynamic relationship between environmental parameters and microalgae population.

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Colloidal speciation of heavy metals in runoff and interstitial waters of a retention/infiltration pond

Water Science & Technology ◽

10.2166/wst.2006.627 ◽

2006 ◽

Vol 54 (6-7) ◽

pp. 307-314 ◽

Cited By ~ 5

Author(s):

B. Béchet ◽

B. Durin ◽

M. Legret ◽

P. Le Cloirec

Keyword(s):

Heavy Metals ◽

Strong Impact ◽

Chemical Parameters ◽

Runoff Water ◽

Lead And Cadmium ◽

Physico Chemical ◽

High Concentrations ◽

Chemical Conditions ◽

The Impact ◽

Interstitial Waters

The thickness of non-saturated zone and physico-chemical conditions are important parameters to assess the impact of infiltration ponds on water resources with respect to heavy metals transfer. As changes in physico-chemical parameters of solutions have a strong impact on the mobility of colloidal phases in sediments and soils, the colloidal facilitated transfer of heavy metals has to be investigated. Therefore, this study focuses on the characterization of runoff, surface and interstitial waters in a retention/infiltration pond collecting runoff waters of a bridge near Nantes. Physico-chemical parameters and chemical analyses were performed on the waters during about one year. The separation of dissolved and colloidal fractions was carried out by filtration and ultrafiltration for one sample of surface and interstitial waters. Until now, the runoff waters were only filtered at 0.45 μm. The comparison of physico-chemical data shows that the minor variations of runoff water parameters are mitigated in basin and in soils but strong variations impact the composition of interstitial waters. High concentrations of zinc, copper and still of lead are measured in runoff. Lead and cadmium seem to be associated to colloidal and particulate fractions while zinc, copper, nickel and chromium are distributed in all fractions.

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The quality of water of the Mantovo reservoir, Republic of Macedonia

Archives of Biological Sciences ◽

10.2298/abs0903501s ◽

2009 ◽

Vol 61 (3) ◽

pp. 501-512 ◽

Cited By ~ 2

Author(s):

Valentina Slavevska-Stamenkovic ◽

T. Stafilov ◽

S. Smiljkov ◽

M. Paunovic ◽

S. Hristovski

Keyword(s):

Organic Pollution ◽

Nutrient Concentrations ◽

Chemical Parameters ◽

Limnodrilus Hoffmeisteri ◽

Quality Of Water ◽

Environmental Status ◽

Physico Chemical ◽

High Concentrations ◽

Very High

The aim of the paper is to evaluate the quality of water of the Mantovo Reservoir (Southeast Macedonia)based on physico-chemical parameters and the macrozoobenthos. Monthly sampling was performed during 2003 and 2004. Temperature and DO depth profile data indicate that the Mantovo Reservoir is a dimictic lake. Based on mean nutrient concentrations, the Mantovo Reservoir can be considered as being phosphorus-deficient. During the summer stratification, very high concentrations of Mn (2,819 ?g/l)and Cu (147.6?g/l)were detected in the lower profundal. Limnodrilus hoffmeisteri was the dominant species, which indicates the presence of organic pollution. Dominance of Chaoborus crystallinus and decline in abundance of L. hoffmeisteri in the lower profundal indicate a deterioration of environmental status in the deepest part of the lake.

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Hydro-chemical and microbiological characterization of Lower Cretaceous waters in a semi-arid zone Beni-Ounif syncline, South-West of Algeria

Journal of Water and Land Development ◽

10.2478/jwld-2019-0007 ◽

2019 ◽

Vol 40 (1) ◽

pp. 67-80

Author(s):

Fatima Zahra Merzougui ◽

Ahmed Makhloufi ◽

Touhami Merzougui

Keyword(s):

Water Quality ◽

Chemical Analysis ◽

Lower Cretaceous ◽

Chemical Elements ◽

Arid Zone ◽

Principal Component ◽

Hierarchical Cluster ◽

Microbiological Analysis ◽

Physico Chemical ◽

Sampling Points

Abstract The article analyses the water quality of the Lower Cretaceous aquifer in the Beni-Ounif syncline. To this end, 42 samples were taken for physico-chemical analysis and 28 for microbiological analysis in March, May and October 2017 from 14 sampling points. The results of physico-chemical analysis were processed by multi-variety statistical analysis methods: principal component analysis (PCA) and hierarchical cluster analysis (HCA) coupled to hydro chemical methods: Piper diagram. The PCA allowed us to explore the connections between physico-chemical parameters and similarities between samples and to identify the most appropriate physico-chemical elements to describe water quality. The HCA allowed us to classify the sampling points according to the similarity between them and thus reduce them for the next follow-up analysis. Waters of the syncline are characterized by medium to low mineralization (320 < EC < 7600 μS∙cm–1 and 200 < RS < 4020 mg∙dm−3) and hardness of between 22 and 123°f. Only 19% of the samples show NO3 concentrations exceeding the Algerian standards. Microbiologically, the study reports the presence of bacteria: coliforms (<8 CFU∙0.1 dm−3), Streptococcus D (<1100 CFUꞏ0.1 dm–3), Clostridium sulphito-reducer of vegetative form (<90 CFUꞏ0.02 dm–3) and sporulate (<4 CFUꞏ0.02 dm–3), total aerobic mesophilic flora at 22°C (<462 CFUꞏ0.001 dm–3) and at 37°C (<403 CFUꞏ0.001 dm–3). It must be noted that no presence of thermo-tolerant coliforms is observed.

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The assessment of the physicochemical quality of water intended for irrigation of Oued Méskiana (Oum El Bouaghi) Algeria

Acta Scientifica Naturalis ◽

10.2478/asn-2019-0022 ◽

2019 ◽

Vol 6 (2) ◽

pp. 110-122

Author(s):

Zidi Anissa ◽

Menad Ahmed ◽

Senoussi Mohamed Mourad ◽

Zaidi Kenza

Keyword(s):

Absorption Rate ◽

Chemical Elements ◽

Sodium Absorption ◽

Downstream Site ◽

Large Area ◽

Quality Of Water ◽

Physico Chemical ◽

High Concentrations ◽

Semi Arid

Abstract The aquatic ecosystem of the Meskiana Valley (wilaya of Oum El Bouaghi) covers a large area with a permanent flow and a semi-arid climate characterized by a strong evapotranspiration. In order to determine the Physico-chemical quality, pollution and salinity of the water of the river of Meskiana and more particularly in its downstream part which is exposed to wastewater discharges, analyses were carried out at the level of three sampling points: witness, the upstream (before spill), downstream (after spill)). In order to prevent the risk of alkalization and salinization of soil, the sodium absorption rate (SAR) and the percentage of sodium were determined and represented on the Wilcox and Riverside diagram. The high concentrations of polluting chemical elements and excessive salinity obtained at the downstream site show a high risk of pollution and salinization.

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Physico-Chemical Parameters Determining the Variability of Actually and Potentially Available Fractions of Heavy Metals in Fluvial Sediments of the Middle Odra River

Archives of Environmental Protection ◽

10.2478/aep-2013-0012 ◽

2013 ◽

Vol 39 (2) ◽

pp. 3-16 ◽

Cited By ~ 2

Author(s):

Aleksandra Ibragimow ◽

Barbara Walna ◽

Marcin Siepak

Keyword(s):

Heavy Metals ◽

Organic Matter ◽

Microwave Digestion ◽

Coarse Grained ◽

Chemical Parameters ◽

Sediment Samples ◽

Physico Chemical ◽

Odra River ◽

High Concentrations

Abstract The occurrence of heavy metals (Cd, Cr, Cu, Ni, Pb, Zn) has been determined in the fluvial sediment samples collected along three transects in the Middle Odra River (western Poland) with a width of 360 m. The total concentrations of the metals were obtained after HNO3 microwave digestion and the available fractions of heavy metals were determined by single extraction procedures using two extractants: 0.01M CaCl2 and 0.05M EDTA. The measurement of physico-chemical parameters was also performed. The determination of total and available fractions of heavy metals, except potential available fractions of Cr, revealed high concentrations of studied elements detected in the sediment samples characterized by high content of coarse and very coarse-grained sand fraction and high content of organic matter. It was found that the concentrations of total and available fractions of metals could increase along with the content of organic matter, Eh values and concentrations of H+. Apart from the above, those concentrations become the lowest, the higher the content of medium grain size fractions is. Furthermore, the amounts of CaCl2 and EDTA extractable metals increase in the sediments samples characterized by the lowest total and available concentrations of heavy metals.

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