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Wastewater

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Any amount of water which has been used by human beings and then discarded is known as wastewater. It includes liquid wastes originating from domestic, commercial enterprises, industry and agriculture. These wastes contain a very wide range of contaminating agents in various concentrations. It is the waste from towns and villages made up by mixing used water with contamination arising from different sources. Sewage is usually contaminated with human discharges but also it includes waste products disposed off to the sewers, coming from industrial and commercial liquid waste products. Such wastes reach the sewers through pipes, channels and similar structure. Wastewater or sewage originates from a large number of sources but these can be broadly divided into five categories namely domestic, commercial, industrial, agricultural and natural.

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Water

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Water, or a compound known as H20, is a tasteless and odourless liquid at room temperature. It freezes at temperature below 0°C and becomes a gas at areas of high temperatures or by boiling. It covers about 70% of the earth’s surface and it is vital for all known forms of life; human flora and fauna. Water is absolutely essential to the human body’s survival. A person can live for about a month without food, but only about a week without water. While the daily recommended amount of water is eight cups per day, not all of this water must be consumed in the liquid form. Nearly every food or drink item provides some water to the body. Water naturally moisturizes skin and ensures proper cellular formation underneath layers of skin to give it a healthy, glowing appearance. Water also helps in the digestion process and prevents constipation.

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Eyesore

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On your way down to one of our idyllic local beaches, enclosed in smooth Blue Clay slopes and wrapped up in clear blue waters, there is a building which seems to have been abandoned for quite a number of years most probably due to unstable foundations considering the abundant presence of Blue Clay. Blue Clay is indeed a very soft type of rock and is not really suitable to support construction sites. This derelict building is not only an eyesore to all who visit this beach, but also hazardous. It could be unstable and there is a serious risk of injury to anyone who is curious enough to wander into the building. There could also be a possibility that the building could collapse. Attention must be given to this building for the sake of the beach but mostly for the public's sake.



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Health Hazard

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On your way down to a secluded beach located near Golden Bay, one would expect to find a scenic view in a quiet beach. This beach is quite rich in biodiversity and it seems to have very little human intervention accept for a concrete staircase; there is also an obvious presence of Blue Clay which forms a hill on top of which picturesque panoramas may be observed. This location seems perfect yet there on the way down to the beach are two rusty garbage bins which lie near the stairs, they are an eyesore to all who visit the site not to mention a health hazard, especially to young children who may cut themselves on the jagged, rusty edges of the metal bins. These bins are undoubtedly full of waste and are highly unhygienic.



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Lessons learnt

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In Malta fossil fuels are used to generate most of our electrical power. The power station of Marsa will soon be closed down as it is an old plant. Presently an extension is being built to the Delimara Power Station. This will be running on heavy fuel oil. However the student is questioning this decision for at school he has learnt that natural gas, even though a fossil fuel, has the least negative impact on the environment.

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