Introduction: In this essay I will try to explain water purification and talk about: Why is it important to have clean water; What can happen without clean water; Diseases that unpurified water has; Impact in economy and society of unclean water; What techniques are used to purify water; What is water purification: What is water purification: Water purification is the process of producing drinking water by killing and removing chemicals and bacteria’s. Water purification is not designed only for drinking, it can help in industrial, medicine and scientific applications. There are a lot of methods of water purification. Water takes 70% in human body, and if we will drink unsafe water, minimum 70% of our body will be affected. All the water sources must be monitored to keep people in safe.
The water we drink is an essential ingredient for our wellbeing and a healthy life. Unfortunately polluted water and air are common throughout the world. Polluted water consists of sewage water and industrial discharged heavy metal effluents which cause damage to human health or the environment. Let me tell explain about the causes of water pollution. First of all, the first cause of water pollution is sewage water.
Sludge dewatering 1 Introduction: Water is the most important resource of our life as the life depends on. When waste water is treated to reuse it, there are some solids found by product called wastewater sludge. Wastewater sludge contains 0.25% to 7% of solids. When wastewater is treated it produces a product called biosolids. Biosolids has many important uses such as: 1. biosolids are applied to cropland to improve the quality and the productivity as it contains nutrients and organic matters 2. used in landscaping as soil amendments 3. used as final landfill cover Sludge it is the designing of solids comes out from the wastewater treatment.
Instead of the trash traveling down the storm drain and making its way to the waterways, the litter will be properly disposed of in a landfill or recycling plant. Despite disbelief, people commonly dump chemicals and toxins down storm drains too. Instead of disposing of chemicals the improper way, take hazardous material to a hazardous material drop off site near you. In fact disposing hazardous materials in storm drains is considered illegal. Lastly, one can conserve water by making small changes to their daily life.
Pollution prevention – Is it a Myth? According to the Environmental Protection Agency (EPA), pollution prevention is a process of cutting down and discard the formation of pollutants which is caused by the increase in the usage of raw materials, water, energy or other resources. The act of prevention can be done by altering the process of production, recycling or reusing the nonpoisonous or harmless elements, and recycling or reusing the substances instead of placing them straight into the waste stream. Pollution prevention can also be known as P2. Pollution prevention or P2 have many ways.
(8) Ca+ 2H2O → Ca(OH)2+H2……………………. (9) (Mudgal et al., 2007; Rahuman et al., 2006 ; WRC, 2001). d) Chemical precipitation Chemical precipitation is one of the useful chemical treatment to convert hazardous heavy metals to insoluble form prior to disposal to a landfill and less mobile. This technique is applicable to any liquid waste stream that consist of precipitable hazardous constituent. The solubility of toxic metals can be decreased by adjusting pH and this leads to the synthesisation of a precipitate which can be removed by filtration and settling.
Traditional water drainage systems are known to combine waste and storm water into a single underground drainage network that washes directly to natural water ways. The purpose of which is to take excess water as fast as possible from areas that are prone to flooding (Southampton City Council, n.d.). However, this approach does not consider environmental impacts such as contamination. The United States, for example, has an excessive amount of waste water used in varied purposes that it is sometimes necessary to separate the drainage system of waste water from storm water. Also, the country’s environmental policies suggest that waste water should be treated first before it is allowed to drain in natural waterways such as rivers, lakes and
Water pollution as mentioned above occurs due to major discharges from urban areas like effluents and sewage. Fig 2. Most common sources of water pollution The sources of water pollution can be broadly classified on the basis of three main categories described as follows: 1. On the basis of spatial perspective or Origin: On the basis of origin water pollution can be broadly classified into two categories: 1) Point Source- Point here refers to the single and identifiable source that is responsible for causing pollution. In other words we can say that point sources represents those activities that release their waste directly into the nearby water body.
Commonly, it means one or more foreign substances have built up in water to such an extent that they cause problems for animals or people. Oceans, lakes, rivers, and other water resources can naturally clean up a certain amount of pollution by diffusing it harmlessly. For example if we poured some black ink into a river, it will disappear very quickly because in the river has too much water. But actually the ink still is there in the river, but we cannot see in such a concentration. So there is no problem with chemicals in ink such low levels, and it didn’t cause any real problem.
One of the brightest examples is the “Water for the Future” project, which includes cooperative work of IN countries over the proper water use. At the moment INEP is trying to gather the data evaluating the water assessment on the planet in order to find the best way out of the water scarcity issue. It has already analyzed the long-term water resources, the public water supply and the problem of wastewater. The best option offered it special water treatment and strict control over the water «flow». It is also possible to keep water clean