The study included testing the susceptibility of algae (Oscillatoria pseudogeminata) in removing phytonutrients consisting of ammonia, nitrite, nitrates, active phosphorus, and total phosphorous. As well as the ability of these algae to reduce the chemical requirement of oxygen from the domestic wastewater, in addition to its effectiveness in removing some heavy metals (iron, copper, lead, nickel). This algae was used in the form of the Unialgal culture obtained from the algae plant in the fish department. The results indicated that the efficiency of O. pseudogeminata was better than the other two types. Where the removal was complete (100%) for both ammonia and active phosphorus during the seventh day of treatment. 79% of total phosphorous was removed after ten days. The ability of the algae was lower in removing nitrites (70%) and nitrates (80%), and the algae was able to reduce the chemical requirement of oxygen to 80% during the treatment period. The heavy metals were removed 100% for iron, copper, lead and nickel on the ninth day.
The first case of bacterial infection was recorded in 1862, while it was first isolated in 1882 from the scientist Gessard, who was called Bacillus pyocyaneus. The most common infections caused by bacteria are the first bacteremia in patients with serious burns, chronic lung injuries in patients with cystic fibrosis, and acute ulcerative keratitis in people who use contact lenses. The gastrointestinal tract is an important gateway for entry into the blood infection caused by bacteria, and the bacteria cause endocarditis, where the bacteria infects the heart valves from the direct invasion of the bloodstream, as it causes meningitis and brain abscesses, and it can invade the central organ The inner and nasal sinuses can also be accessed from a site far from the injury, such as the urinary tract. Other pathogenic infections caused by bacteria are pulmonary injuries, as bacteria are the most common disease associated with lung injuries. They are caused by bacteria Hospitalized lung with a mortality rate greater than 70%. Bacteria are a common cause and acquired by hospitals for urinary tract infections due to their ability to adhere to urinary epithelial cells in the bladder, as they cause cystitis and urinary tract infections. The percentage of deaths caused by bacteria can reach 50% due to many factors, including weak body defenses and bacteria resistance to anti-life as well as the production of bacteria, enzymes and external toxins.
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