List of Articles Contamination

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  1 - Evaluation of natural adsorbents in water and wastewater treatment
  Mohadeseh Tavakoli
  10.29252/.5.7.39
  20.1001.1.26763060.1399.5.7.4.2
  With increasing industrial activities and discharging untreated wastewater which contains various environmental pollutants to aquatic environments, problems such as reducing the penetration of light, anaerobic conditions and complications such as allergies and cancer fo More

  With increasing industrial activities and discharging untreated wastewater which contains various environmental pollutants to aquatic environments, problems such as reducing the penetration of light, anaerobic conditions and complications such as allergies and cancer for humans and other living organisms will occur. Surface absorption is one of the most effective and efficient methods for the removal of environmental pollutants and among the common methods for treatment of wastewater, applying natural adsorbents are more efficient than the other methods and is more economic. Since there are many natural adsorbents in nature, they are very inexpensive, they are even free in some cases; adsorption of contaminants by these materials can be a suitable way to remove the toxic substances of contaminated water and industrial wastewater. In this paper, we study some of bioactive adsorbents in order to remove contamination from industrial wastewater. Manuscript profile
• Open Access Article
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  2 - Investigating the status of microbial contamination (intestinal enterococcus) of Caspian sea on the coastal recreational waters of Gilan
  Aazam Nezamhashemi Ameneh  Mansourghanaei Mohammad  Vafajoye Diyanati Mousa Amini Toraj Sadeghi
  20.1001.1.26763060.1402.8.13.7.8
  Microbial agents are among the most important pollutants that enter the Caspian Sea through untreated urban and rural sewage and cause health risks for swimmers. Intestinal enterococcus causes symptoms of stomach and intestinal inflammation.This research is a descriptiv More

  Microbial agents are among the most important pollutants that enter the Caspian Sea through untreated urban and rural sewage and cause health risks for swimmers. Intestinal enterococcus causes symptoms of stomach and intestinal inflammation.This research is a descriptive study and was conducted with the aim of investigating the contamination status of enterococcal enterococci in the water of the Caspian Sea coastal recreational waterson the coasts of Gilan province and comparing it with the standards of the environment and the Ministry of Health. 55 samples (each swimming pool, 5 replicates) were sampled from 11 coastal areas of the Caspian Sea in Gilan province in September 1401. Intestinal enterococcus variables, water temperature, pH, salinity and turbidity were measured according to the methods in the standard method book. The results showed that the average number of intestinal enterococcal bacteria per 100 ml of sample showed 52.54 MPN. Comparison of the average number of intestinal streptococci in different stations with the standard of the environment and the Ministry of Health showed that 5 stations (Safir Omid, Sadaf, Gisom, Tashe Abad and Chamkhale) were above the permissible limit. Also, there was a negative correlation between the number of intestinal streptococci and water pH (P<0.05). As a result of this research, it indicates the microbial contamination with intestinal enterococcus in some natural coastal recreational waters on the shores of the Caspian Sea in Gilan province, which can threaten the health of swimmers. Manuscript profile