scholarly journals Physicochemical characterization of agricultural run-off and groundwater inoculated by Trichoderma asperellum and its effect on anti-oxidative enzymes production by irrigated Trifolium alexandrinum L.

BioResources ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. 3272-3284
Author(s):  
Tarek M. Abdel Ghany ◽  
Mohamed S. Mahmoud ◽  
Mohamed M. Alawlaqi ◽  
Ahmed M. Reyad ◽  
Aisha M. H. Al-Rajhi ◽  
...  
Keyword(s):  
Physicochemical Characterization ◽  
Oxygen Demand ◽  
Oxidative Enzymes ◽  
Trifolium Alexandrinum ◽  
Trichoderma Asperellum ◽  
Water Safety ◽  
Run Off ◽  
Microbial Analysis ◽  
The Impact

Water safety and security has become a great problem in recent years, as the shortage of water resources in most countries is becoming an increasingly serious issue. Therefore, searching for new water sources or treating contaminated water has become a major requirement to covering the shortage of fresh water. The current study evaluated the impact of Trichoderma asperellum on the physicochemical characterization of agricultural run-off (AR) compared with groundwater (GW). Chemical oxygen demand (COD), biological oxygen demand (BOD5), ammonia, total nitrogen (TN), and total dissolved salts (TDS) of AR were higher than that of GW with 90, 90.2, 91.9, 78, and 61.6%, respectively. The addition of T. asperellum to AR caused the COD, BOD5, ammonia, TN, and TDS to decrease 47.2, 39.2, 16.2, 12.9, and 4.8%, respectively. Contents of metals in AR or GW were decreased by T. asperellum. Microbial analysis of soil irrigated by AR in contrast to irrigated by GW showed the presence of a high number of bacteria (32 × 106 CFU), actinomycetes (18 × 104 CFU), and fungi (13 × 104 CFU). Trifolium alexandrinum growth and its antioxidant enzymes activities (catalase, superoxide dismutase, and ascorbate peroxidase) were enhanced by AR inoculated by T. asperellum compared with un-inoculated AR or GW.

scholarly journals Microbiological and Physicochemical Characterization of Hospital Effluents before and after Treatment with Two Types of Sawdust

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Rabea Elmountassir ◽  
Bahia Bennani ◽  
Youssef Miyah ◽  
Ahlam Fegousse ◽  
Ghita El Mouhri ◽  
...  
Keyword(s):  
Physicochemical Characterization ◽  
Oxygen Demand ◽  
Fecal Coliforms ◽  
World Health ◽  
Hospital Effluents ◽  
Before And After ◽  
Health Organization ◽  
Filter Bed ◽  
Microbiological Analyses

Physicochemical and microbiological analyses of liquid hospital effluents have demonstrated that they are loaded with organic and inorganic pollutants then discharged into the sewerage networks without treatment. The aim of this study is to suggest an effective solution for their treatment. Column filtration is an adequate method to reduce the pollutant load which makes it possible to have a rate of abatement of 97% and 79% by filtering the pollutant material using sawdust of catia and red sawdust, respectively, with a filter bed height equal to 13 cm. Physicochemical parameters such as chemical oxygen demand, biological oxygen demand, nitrate, ammonia, phosphorus, electrical conductivity and the bacteriological parameters like fecal coliforms, Streptococci, and Staphylococci have been measured. The analysis of heavy metals displays compliance with the World Health Organization standards. The red sawdust and catia sawdust have been characterized by scanning electron microscopy and Fourier-transform infrared spectroscopy.

scholarly journals Analysis of Leachate and Water Resource Quality Surrounding Municipal Solid Waste Landfill of Tamellast (Agadir, Morocco)

2021 ◽  
Vol 240 ◽  
pp. 02006
Author(s):  
Saadia Asouam ◽  
Farid Faik ◽  
Zine El Abidine El Morjani
Keyword(s):  
Electrical Conductivity ◽  
Dissolved Oxygen ◽  
Physicochemical Characterization ◽  
Oxygen Demand ◽  
Resource Quality ◽  
Sodium Potassium ◽  
Physico Chemical ◽  
Dug Wells ◽  
The Impact ◽  
Surface And Groundwater

The aim of this work was to study the physicochemical characterization and heavy metal testing results carried out for leachate generated by the landfilling of household and similar waste in the Tamellast landfill of Agadir. The surface and groundwater resource (often used as drinking source) samples collected from Tamellast and different water sources wells surrounding the landfill were used to find out the impact of leachate percolation on surface and groundwater quality. The Physico-chemical parameters analyzed were, pH, Electrical Conductivity (EC), Dissolved oxygen, Sodium, Potassium, while biological parameters tested were Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), E.Coli and Coliform tot. The contamination was investigated by measuring the concentration of heavy metals (Pb, Zn, Cr, Ni, As, and Fe). The Electrical Conductivity (EC), COD, BOD, Sodium, Potassium, in leachate were found to be 13180 µs/cm, 3150 mgO2/l, 1000 mgO2/l, 2000 mg/L, and 10700 mg/L, respectively. The concentration in the surrounding dug wells varied from 8.33 – 9.13 mg/L for Dissolved Oxygen, 9.8 – 18 mg/L for potassium, 0.22 – 0.6 mg/L for Fe, and 0.012 – 0.1 mg/L for total Mn. The concentration of Mn, Fe, and other parameters decreased with increasing distance between the landfill and wells.

Biochemical characterization of fruit juice for impact of storage on commercial beverages

2017 ◽  
Vol 36 (04) ◽  
Author(s):  
Sujata Sethy
Keyword(s):  
Biochemical Characterization ◽  
Cadmium Content ◽  
Sunset Yellow ◽  
E Coli ◽  
Duration Of Storage ◽  
Food Colour ◽  
Microbial Analysis ◽  
The Impact

The study was performed to evaluate the impact of storage time on safety and hygienic quality of commercial fruit beverage on the basis of market survey. Three most popular brands and three least popular brands of fruit beverages like squash and syrup were selected and stored for nine months at room temperature. The samples were subjected to chemical analysis for food colour, preservative (SO2), heavy metals (Pb and Cd), pectin and microbial analysis for bacteria, fungus, yeast and E. coli at bimonthly interval. Lead content in all the beverages and synthetic permitted food colours like sunset yellow 136.5 ppm in squash A and tartazine 133.2 ppm in squash B and 310.9 ppm in Syrup F was found which exceeded the permissible limit. Preservative (SO2) and cadmium content remained within the acceptable limit. Total bacterial and fungal count increased sharply with the advancement of storage particularly from 7th month onwards. Duration of storage had no effect on the colour and heavy metal content of the beverages.

scholarly journals Evaluation of the impact of gold mining activities on the waters and sediments of Lom River, Wakaso, Cameroon and the restorative effect of Moringa Oleifera seeds

2021 ◽  
Vol 11 (7) ◽  
Author(s):  
Mouhamed Ayiwouo Ngounouno ◽  
Luc Leroy Mambou Ngueyep ◽  
Sifeu Takougang Kingni ◽  
Sirri Neba Nforsoh ◽  
Ismaila Ngounouno
Keyword(s):  
Heavy Metals ◽  
Electrical Conductivity ◽  
Gold Mining ◽  
Moringa Oleifera ◽  
Suspended Solids ◽  
Physicochemical Characterization ◽  
Mining Activities ◽  
The Impact ◽  
Maximum Removal

AbstractThe impact of gold mining activities on the Lom River in Wakaso (Adamawa Cameroon) and the potential of Moringa Oleifera seeds for the removal of pollutants from wastewater is evaluated on this paper. Water samples were collected for physicochemical (hydrogen potential, electrical conductivity, turbidity and suspended solids) and chemical (major ions and heavy metals) analyses. To evaluate the effect of mining activities on waters and sediments, a combination of multivariate statistical analysis (MSA) and methods to assess the sediment quality was used. The restorative effect of Moringa oleifera seeds was studied with the determination of the maximum removal efficiencies and the maximum adsorption capacities. The results of the physicochemical characterization of waters showed that these waters were slightly acidic to slightly basic (6.12–8.12), weakly conductive (185.8–584.1 μS cm−1), turbid (345–801NTU) and had high content of suspended solids (167–700 mg L−1). The average concentrations of studied heavy metals (Ni, Cd, Fe, Mn, As and Hg) in waters exceeded the limits recommended by the World Health Organization (WHO) standards. Physicochemical characterization of sediments revealed that they were acidic to neutral (5.95–6.80) and organic matter (OM) content ranged from 11.11 to 15.78%. The concentrations of studied trace metals (Ni, Cd, Fe, Hg, Mn and As) in sediments were below the limits recommended by the WHO except for Cd and Hg. The study of the capacity of Moringa oleifera seeds to remove pollutants in waters showed that 54% of the electrical conductivity, 80% of turbidity and 94% of suspended solids were reduced. The maximum removal efficiency of 91.66, 92.30 and 24.48 and the maximum adsorption capacity of 2.4, 2.6 and 16.6 mg g−1were observed for Cd (II), Hg (II) and Fe (II), respectively. Thus, the Moringa oleifera seeds which are locally available natural bio-adsorbent exhibit attractive property to treat wastewater.

scholarly journals Physicochemical Characterization of the Quality of Groundwater: Case Study of the Tebessa Plain (North-East Algeria)

2021 ◽  
Vol 31 (3) ◽  
pp. 18-36
Author(s):  
Lassaad Ghrieb ◽  
Ammar Maoui ◽  
Essia Boudjebieur ◽  
Yacine Gueroui
Keyword(s):  
Physicochemical Characterization ◽  
Statistical Tool ◽  
Study Region ◽  
North East ◽  
Calcium Magnesium ◽  
Semi Arid Region ◽  
Carbonate Formations ◽  
The Impact

Abstract In order to characterize the physicochemical quality of groundwater, and to examine the behavior of factors influencing water chemism in the Tebessa Plain, which is part of a semi-arid region located in the northeast of Algeria, physicochemical analyses were carried out on 32 water samples from the Mio-Plio quaternary water table. In the east of the study region, in the Djebissa area, most of the Triassic formations form a depression made up of masses of gypsiferous clay, where some outcrops of Triassic dolomites appear together with several blocks of carbonate rocks, torn off during the Aptian- Albian age. In the center and to the west of the plain, carbonate formations are represented by a significant layer of limestone marl and marl from the Cretaceous to Tertiary periods. The results obtained showed that the quality of the water is influenced by the heterogeneity of the geological formations. The concentrations of chlorides, sulphates, and sodium are high in the eastern part of the study area, which can be explained by the impact of gypsum formations, confirmed by the Sr2+/Ca2+ ratio being greater than 3 ‰ for the majority of samples. In the wells of the Tebessa and Ain Chabro areas, the concentrations of calcium, magnesium, and bicarbonates increase due to the predominance of carbonate formations of borders. The use of the statistical tool confirmed the evaporitic origin of the anions, especially in the east of the study region.

The impact of slaughtering methods on physicochemical characterization of sheep myoglobin

2018 ◽  
Vol 16 (2) ◽  
pp. 315-324
Author(s):  
Elnaz Hosseini ◽  
Roghayeh Sattari ◽  
Shohreh Ariaeenejad ◽  
Maryam Salami ◽  
Zahra Emam-Djomeh ◽  
...  
Keyword(s):  
Physicochemical Characterization ◽  
The Impact

scholarly journals Identification and Physicochemical Characterization of a New Allergen from Ascaris lumbricoides

2020 ◽  
Vol 21 (24) ◽  
pp. 9761
Author(s):  
Velky Ahumada ◽  
María Manotas ◽  
Josefina Zakzuk ◽  
Lorenz Aglas ◽  
Sandra Coronado ◽  
...  
Keyword(s):  
Ascaris Lumbricoides ◽  
Immunoglobulin E ◽  
Physicochemical Characterization ◽  
Allergic Diseases ◽  
Specific Ige ◽  
Allergenic Activity ◽  
The Impact ◽  
Helical Folding

To analyze the impact of Ascaris lumbricoides infection on the pathogenesis and diagnosis of allergic diseases, new allergens should be identified. We report the identification of a new Ascaris lumbricoides allergen, Asc l 5. The aim of this study was to evaluate the physicochemical and immunological features of the Asc l 5 allergen. We constructed an A. lumbricoides cDNA library and Asc l 5 was identified by immunoscreening. After purification, rAsc l 5 was physicochemically characterized. Evaluation of its allergenic activity included determination of Immunoglobulin E (IgE) binding frequency (in two populations: 254 children and 298 all-age subjects), CD203c based-basophil activation tests (BAT) and a passive cutaneous anaphylaxis (PCA) mouse model. We found by amino acid sequence analysis that Asc l 5 belongs to the SXP/RAL-2 protein family of nematodes. rAsc l 5 is a monomeric protein with an alpha-helical folding. IgE sensitization to rAsc l 5 was around 52% in general population; positive BAT rate was 60%. rAsc l 5 induced specific IgE production in mice and a positive PCA reaction. These results show that Asc l 5 has structural and immunological characteristics to be considered as a new allergen from A. lumbricoides.

Synthesis and Physicochemical Characterization of Ce1−xGdxO2−δ: A Case Study on the Impact of the Oxygen Storage Capacity on the HCl Oxidation Reaction

ChemCatChem ◽  
2015 ◽  
Vol 7 (22) ◽  
pp. 3738-3747 ◽  
Author(s):  
Maren Möller ◽  
Sven Urban ◽  
Pascal Cop ◽  
Tobias Weller ◽  
Rüdiger Ellinghaus ◽  
...  
Keyword(s):  
Oxidation Reaction ◽  
Storage Capacity ◽  
Physicochemical Characterization ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
The Impact

scholarly journals Physicochemical characterization of leachates produced in the Rabat-Salé-Kénitra Region landfill technical center and monitoring of their treatment by aeration and reverse osmosis

2020 ◽  
Vol 150 ◽  
pp. 02013
Author(s):  
Mounaim Halim El Jalil ◽  
Hind Elkrauni ◽  
Mohamed Khamar ◽  
Abdelhakim Bouyahya ◽  
Hecham Elhamri ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Biological Treatment ◽  
Physicochemical Characterization ◽  
Oxygen Demand ◽  
High Electrical Conductivity ◽  
High Concentration ◽  
Pollutant Load ◽  
Average Value ◽  
Mineral Pollution

The aim of this work is to study the physicochemical characterization and monitoring of the treatment of leachate generated by the landfilling of household and similar waste in the landfill of Rabat-Salé-Kénitra Region. The analysis of the results showed a high concentration of easily biodegradable organic matter. The pollutant load is of the order of 3,850 mg/L of the chemical oxygen demand (COD), 1.260 mg/L of the biochemical oxygen demand (BOD5), and shows an average content of nitrates (NO3-=56.6 mg/L). This mineral pollution is caused by a high electrical conductivity, which reaches an average value of 15.9 mS/cm, and a low concentration of heavy metals in the raw leachate such as lead (Pb = 1.591 mg/L), copper (Cu = 1.017 mg/L), and cadmium (Cd = 0.109 mg/L). The biological treatment allows for the successive biodegradation of 40% of the BOD5, and 33% of the COD. Moreover, the reverse osmosis filtration in organic membranes achieves a reduction of 98% for BOD5, 97% for COD, 85% for lead, and 67% for copper. In this study, biological and reverse osmosis treatments represented an effective treatment for the organic and metallic leachate pollutants of this landfill.

scholarly journals Settlement evaluation of municipal solid waste confined in lysimeters considering the phases of anaerobic biodegradation

2019 ◽  
Author(s):  
Tiago Magalhães Tatagiba ◽  
Miriam Goncalves Miguel
Keyword(s):  
Fatty Acids ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Volatile Fatty Acids ◽  
Physicochemical Characterization ◽  
Oxygen Demand ◽  
Anaerobic Biodegradation ◽  
Total Alkalinity ◽  
Methanogenic Phase

This research evaluated the settlements occurring in the municipal solid waste mass, confined in three lysimeters, considering the influence of the biodegradation of these wastes, by physicochemical characterization of the leachate produced. The physicochemical variables studied were: Chemical Oxygen Demand (COD), Nitrogen-Ammonia, Hydrogen Potential (pH), Volatile Fatty Acids (VFA) and Total Alkalinity. The measured settlements were analyzed based on the biodegradation phases of the confined wastes. Currently, the MSW is in the methanogenic phase of anaerobic biodegradation.

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