The water

2,173 views

Published on

Published in: Education, Technology
1 Comment
2 Likes
Statistics
Notes
No Downloads
Views
Total views
2,173
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
95
Comments
1
Likes
2
Embeds 0
No embeds

No notes for slide

The water

  1. 1. The causes and the remedies ofThe causes and the remedies of the water pollutionthe water pollution THE WATER
  2. 2. WATER ON THE EARTH Water in nature is one of the main constituents of ecosystems and is the basis of all known life forms, including humans. It was the basis of the origin of life on our planet and it is essential to civil, agricultural and industrial use. Men recognized since ancient times its importance, and identified as one of the main constituents of the universe, giving it a deep symbolic value, found in major religions.
  3. 3. THE WATER POLLUTION Poland water pollution Italy water pollution
  4. 4. Assessment of the degreeAssessment of the degree of pollutionof pollution The degree of pollution is determined by the so-calledThe degree of pollution is determined by the so-called iindicatorsndicators of pollution, which refers to the concentration of the substanceof pollution, which refers to the concentration of the substance in milligrams per 1 dm ³ of water. One of the most importantin milligrams per 1 dm ³ of water. One of the most important indicators of surface water pollution is the concentration ofindicators of surface water pollution is the concentration of dissolved oxygendissolved oxygen, which can take the maximum value of 8.9, which can take the maximum value of 8.9 mg/dm3 - lower concentration of oxygen indicates the pollutionmg/dm3 - lower concentration of oxygen indicates the pollution of organic compounds, biochemical degradation, decrease inof organic compounds, biochemical degradation, decrease in oxygen concentrations below 4 mg/dm3 causes death of manyoxygen concentrations below 4 mg/dm3 causes death of many aquatic organisms . Other indicators of pollution of naturalaquatic organisms . Other indicators of pollution of natural waters are:waters are: biochemical oxygen demandbiochemical oxygen demand, which is a measure, which is a measure of the content of biochemical degradable organic compounds,of the content of biochemical degradable organic compounds, chemical oxygen demandchemical oxygen demand - a measure of the contents of all- a measure of the contents of all organic compounds, the presence of suspended mineral andorganic compounds, the presence of suspended mineral and organic, and inorganic and organic compounds of nitrogen,organic, and inorganic and organic compounds of nitrogen, phosphorusphosphorus..
  5. 5. Water pollution is divided into: Natural, derived from impurities contained in the surface waters and groundwater’s Artificial associated with human activity: a) biological, due to the presence of pathogenic microorganisms such as bacteria, viruses, algae, fungi, protozoa and their toxins b) chemical, refer to changes in chemical composition and pH. These include oil, petrol, grease, oil, detergents, pesticides, fertilizers, aromatic hydrocarbons, heavy metal salts, strong acids, alkalis, phenols and cresols.
  6. 6. Protection of water resources is primarily on the technical solution, such as: - the application of technology without wastewater - of aeration of stagnant water - by closing water circuits - for mine water recycling and re-injection of water into the ground - to secure the dumps and landfills - a wastewater treatment
  7. 7. Methods of wastewater treatment: - Mechanical-consisting of the removal of insoluble impurities - Chemical-precipitation consisting of certain soluble compounds or their neutralization - The most important in the biological wastewater treatment technologies, involving the purification of pollutants by the action of microorganisms Wastewater Treatment Technology
  8. 8. Water contamination in Czestochowa: Major water pollution and sediments come from municipal and industrial wastewater and runoff pollution of the area of agricultural crops. Stradomka`s water is polluted by industrial waste water and rainwater drainage. Smaller industrial plants located in Czestochowa discharge wastewater into municipal sewage systems and municipal wastewater to the Central Industrial Wastewater Treatment Plant Company "Warta" in Czestochowa.
  9. 9. Purpose of wastewater treatment : The primary objective of wastewater treatment is to protect the natural environment, and above all to protect the purity of surface waters.
  10. 10. Causes of waterCauses of water pollution in Italypollution in Italy  They contain large amounts of human excrement and should be purified. Unfortunately they are not (just half of them).  Sludges can contain microorganisms that cause diseases (cholera, salmonellosis, etc.), and can be very dangerous for men. The sewers of the city Agriculture Pesticides used in agriculture remain on the ground and plants, so when it rains the water enters in the ground and it becomes polluted. Then water reaches water-bearing stratums where nitrates and phosphates, which are in it becouse of fertilizers used in agriculture, are released and then they spread.
  11. 11. The toxic industrial wasteThe toxic industrial waste  Heavy metals (mercury, oftenHeavy metals (mercury, often used as a fungicide; lead used inused as a fungicide; lead used in batteriesbatteries, etc.), etc.)  The metal oxides andThe metal oxides and otherother products of the pharmaceuticalproducts of the pharmaceutical industry.industry.  Hydrocarbons toxic (used toHydrocarbons toxic (used to make insecticides such as DDTmake insecticides such as DDT or processing of plastics andor processing of plastics and paints)paints) Industries releasedIndustries released toxic wastetoxic waste, which contain, which contain Heavy metalsHeavy metals,, HydrocarbonsHydrocarbons and Cand Chhromium, in rivers and seas.romium, in rivers and seas.
  12. 12. Oil pollutionOil pollution  Most of the seas are polluted by oil, and oneMost of the seas are polluted by oil, and one of the most polluted seas in the world is theof the most polluted seas in the world is the Mediterranean, because its waters are renewedMediterranean, because its waters are renewed very slowly (80-100 years).very slowly (80-100 years).  Some oil tankers wash their tanks with seaSome oil tankers wash their tanks with sea water, and there are also a lot of accidents. Inwater, and there are also a lot of accidents. In this way, million tons of oil are dischargedthis way, million tons of oil are discharged into the oceans. Mediterranean (only 1% ofinto the oceans. Mediterranean (only 1% of the world seas) concentrates 28% of global oilthe world seas) concentrates 28% of global oil pollution.pollution.  The oil forms a thick, surface layer, calledThe oil forms a thick, surface layer, called "black tide", which prevents oxygenation of"black tide", which prevents oxygenation of water and sunlight penetration. Organismswater and sunlight penetration. Organisms cannot live without oxygen and sunlight. Socannot live without oxygen and sunlight. So the damages to the enviroment arethe damages to the enviroment are irreparable.irreparable.
  13. 13. MolgoraMolgora WartaWarta pH sourcepH source pH coursepH course pH tappH tap Temperature sourceTemperature source Temperature courseTemperature course Temperature tapTemperature tap Water hardness sourceWater hardness source Water hardness courseWater hardness course Water hardness tapWater hardness tap
  14. 14. Arnone Matteo Belingheri Omar Fasce Federico Migliorino Lorenzo Ernest Kyć Michał Stolarski Adam Chłąd Kamil Tratkiewicz

×