scholarly journals Characterization of the Youssoufia-Morocco-MineFluoride-Contaminated Water and Their Detrimental Effects on Human Health

2019 ◽  
Author(s):  
Moufti Ahmed
Keyword(s):  
Human Health ◽  
Contaminated Water

Physicochemical and bacteriological characterization of hospital effluents and their impact on the environment

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Human Health ◽  
Fecal Coliforms ◽  
Chemical Pollution ◽  
Hospital Effluents ◽  
Biological Contaminants ◽  
Almost All ◽  
Direct Discharge ◽  
Significant Chemical

Liquid effluents discharged by hospitals may contain chemical and biological contaminants whose main source is the different substances used for the treatment of patients. This type of rejection can present a sanitary potentially dangerous risk for human health and can provoke a strong degradation of diverse environmental compartments mainly water and soils. The present study focuses on the quality of the liquid effluents of Hassani Abdelkader’s hospital of Sidi Bel-Abbes (West of Algeria). The results reveal a significant chemical pollution (COD: 879 mgO2/L, BOD5: 850 mgO2/L, NH4+ : 47.9 mg/l, NO2- : 4.2 mg/l, NO3- : 56.8 mg/l with respect to WHO standard of 90 mgO2/L, 30 mgO2/L, 0.5 mg/l, 1 mg/l and 1 mg/l respectively). However, these effluents are biodegradable since the ratio COD/BOD5 do not exceeded the value of 2 in almost all samples. The presence of pathogen germs is put into evidence such as pseudomonas, the clostridium, the staphylococcus, the fecal coliforms and fecal streptococcus. These results show that the direct discharge of these effluents constitutes a major threat to human health and the environment.

Characterization of chicken manure biochar relevant to its potential use in remediation of Cd contaminated water

2021 ◽  
Vol 221 ◽  
pp. 197-206
Author(s):  
Cuixia Yan ◽  
Tao Sun ◽  
Hongtao Jia ◽  
Yingming Xu ◽  
Yuebing Sun
Keyword(s):  
Chicken Manure ◽  
Contaminated Water ◽  
Potential Use

The Preparation and Characterization of Expanded Graphite via Microwave Irradiation and Conventional Heating for the Purification of Oil Contaminated Water

2019 ◽  
Vol 19 (2) ◽  
pp. 1122-1125 ◽  
Author(s):  
Thinh Van Pham ◽  
Thuong Thi Nguyen ◽  
Duy Trinh Nguyen ◽  
Tran Van Thuan ◽  
Phuong Quynh Thi Bui ◽  
...  
Keyword(s):  
Microwave Irradiation ◽  
Expanded Graphite ◽  
Conventional Heating ◽  
Contaminated Water

Geotechnical characterization of Mount Etna ash for its reuse preserving human health

2015 ◽  
pp. 127-128 ◽  
Author(s):  
G. Banna ◽  
P. Capilleri ◽  
M.R. Massimino ◽  
E. Motta
Keyword(s):  
Human Health ◽  
Mount Etna ◽  
Geotechnical Characterization

scholarly journals Synthesis of Micro/nano Urchin-like VO2 Particles and Its Decolorization of Methylene Blue

2019 ◽  
Vol 35 (3) ◽  
Author(s):  
Nguyen The Manh ◽  
Duong Hong Quan ◽  
Vu Thi Ngoc Minh ◽  
Vuong Pham Hung
Keyword(s):  
Methylene Blue ◽  
Sodium Dodecyl ◽  
Adsorption Properties ◽  
Contaminated Water ◽  
Potential Applications ◽  
Synthesis Procedure ◽  
Water Treatments ◽  
Sds Surfactant ◽  
Mb Adsorption

Micro/nano urchin-like VO2 particles were synthesized successfully by hydrothermal method. Vanadium pentoxide (V2O5), oxalic acid (C2H2O4) and sodium dodecyl sulfate (SDS) surfactant were used as reagents for the synthesis of VO2. In this article, we have reported the synthesis procedure of VO2 nanorods and micro/nano urchin-like VO2 structure and evaluating the methylene blue (MB) adsorption properties. Morphology and particle size of VO2 were observed by FE-SEM. The phase formation of VO2 was studied by XRD. Raman spectroscopy was also used for characterization of VO2. Micro/nano urchin-like VO2 structure was showed good MB adsorption properties that have potential applications in dye-contaminated water treatments.

scholarly journals Molecular and epidemiological characterization of recurrent Mycobacterium ulcerans infections in Benin

2021 ◽  
Vol 15 (12) ◽  
pp. e0010053
Author(s):  
Ronald Gnimavo ◽  
Alban Besnard ◽  
Horace Degnonvi ◽  
Juliana Pipoli Da Fonseca ◽  
Marie Kempf ◽  
...  
Keyword(s):  
Random Distribution ◽  
Buruli Ulcer ◽  
Mycobacterium Ulcerans ◽  
Neglected Tropical Disease ◽  
Contaminated Water ◽  
Ulcer Recurrence ◽  
Paradoxical Reaction ◽  
Environmental Mycobacterium ◽  
Epidemiological Characterization

Background Buruli ulcer is a neglected tropical disease caused by Mycobacterium ulcerans, an environmental mycobacterium. Although transmission of M. ulcerans remains poorly understood, the main identified risk factor for acquiring Buruli ulcer is living in proximity of potentially contaminated water sources. Knowledge about the clinical features of Buruli ulcer and its physiopathology is increasing, but little is known about recurrence due to reinfection. Methodology/Principal findings We describe two patients with Buruli ulcer recurrence due to reinfection with M. ulcerans, as demonstrated by comparisons of DNA from the strains isolated at the time of the first diagnosis and at recurrence. Based on the spatial distribution of M. ulcerans genotypes in this region and a detailed study of the behavior of these two patients with respect to sources of water as well as water bodies and streams, we formulated hypotheses concerning the sites at which they may have been contaminated. Conclusions/Significance Second episodes of Buruli ulcer may occur through reinfection, relapse or a paradoxical reaction. We formally demonstrated that the recurrence in these two patients was due to reinfection. Based on the sites at which the patients reported engaging in activities relating to water, we were able to identify possible sites of contamination. Our findings indicate that the non-random distribution of M. ulcerans genotypes in this region may provide useful information about activities at risk.

Technological Interventions in Management of Hg Contaminated Water

2018 ◽  
pp. 126-140
Author(s):  
Vidushi Abrol ◽  
Sharada Mallubhotla ◽  
Sundeep Jaglan
Keyword(s):  
Human Health ◽  
Cost Effective ◽  
Industrial Wastes ◽  
Mercury Contamination ◽  
Contaminated Water ◽  
Treatment Techniques ◽  
Innovative Methods ◽  
Technological Interventions ◽  
Treatment Technologies ◽  
Ancient Times

Rising cases of environmental mercury hazards has led to a need for cost-effective mercury treatment techniques. Extensive use of mercury from ancient times has resulted in water contamination that may require remediation. Mercury contamination is tedious to treat and may pose a risk to human health and the environment. To deal with this threat of mercury contamination, industrial wastes and wastewaters containing mercury requires treatment for its removal and immobilization. This chapter provides a synopsis of the availability, performance, and technologies for management of mercury in water. It covers the innovative methods to treat the mercury contamination like biosorption. In this chapter, the technological aspects available for the mercury treatment technologies are reviewed. It describes the theory, design, and operation of the technologies; provides information on commercial availability and use; and includes data on performance, where available.

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