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Effects of Agriculture on environment
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Recommended: Effects of Agriculture on environment
This review shows the pros and cons of using the combination of various technologies for industrial wastewater treatment plant. Rapid industrialization, intensive agriculture and other human activities cause soil degradation, pollution and lowers the productivity and sustainability of the crops that further increase the pressure on natural resources and contribute to their degradation. Environmental bioremediation is an effective management tool for managing the polluted environment and in restoring the contaminated soil. The use of microbial sources, coupled with advanced technology is one of the most promising and economic strategies for the removal of environmental pollutants. There is a strong scientific growth with both the in situ …show more content…
Pollution is a global intimidation to the environment and it becomes an alarm word of today’s world. The swift growth of human populations fuelled by scientific developments in health and agriculture has led to a speedy increase in the environmental pollution. Water has a major impact on all aspects of human life, including but not limited to health, food, energy and the economy. The unprecedented inhabitants’ multiplies and the industrial development during the 20th century has not only increased the conventional solid and liquid waste pollutants to critical levels but also produced a range of previously unknown pollution problems for which the society was unprepared. Of the total 220 million deaths per year it was estimated that the causes of death in 12-20 million are due to water and non-fatal infections which is very high(2). The run- off flow is considered to be the freshwater source on which the people depend. The steady flow of fresh water was estimated at 12.700 to 16.000 km3 year which is 4200 km3 per year. It is used for freshwater irrigation, industrial and domestic purposes, and that is estimated to increase by a number of 4350-5200km3 per year . Alternatively, the available fresh water is only 0.5% of the worlds 1.4 billion km3 water, which is also poorly distributed throughout the world (3). There is a limited ability to increase the supply of drinking water due to the
In animal agriculture today, manure that is produced by hogs has the potential to do a lot
Stephenson, R., & Blackburn, J. J. (1998). The Industrial Wastewater Systems Handbook. New York: Lewis Publishers.
Chemically enhanced primary treatment (CEPT) is a wastewater treatment method that provides as smart alternative to the conventional primary treatment. It can also be used as a proficient preliminary step of the biological secondary treatment processes. CEPT embraces coagulation and flocculation, and it accomplishes remarkable increases in the pollutants removal from the influent (Ødegaard, 1989; Rashed et al., 1997; Ayoub et al., 2013; Rashed et al., 2013a; Rashed et al., 2013b). Chemical precipitation is the technique of CEPT process, the main idea of chemical precipitation that it converts soluble substances to insoluble particles, which can be flocculated and separated from the liquid. Removal efficiencies depend on mixing times, mixing
Water pollution is a very serious problem as it affects one of the most essential ingredients to our very livelihood. The earth is covered in water, in fact about 70% of the Earth is covered in water, only
This is because only a small part of the population, particularly in developing countries, have access to water of acceptable quality. It is estimated that in some countries only 20% of the rural population has water of satisfactory quality. Based on these statistics, it is clear the urgent need for awareness about caring for water use. Almost without realizing it, we are seriously jeopardizing this essential resource, not for us but for our children's children and their generations, aware that in other parts o...
There are several types of treatment methods present but biological treatment methods have gained much traction in the recent years due to their low operation costs, comparatively benign effects on the environment and their ease of handling and maintenance. Biological wastewater treatment methods can be subcategorized into dispersed growth systems and attached growth systems. Biofilms fall under the latter category (Sehar & Naz, 2016)
China is one of 13 water shortage countries around the world, it’s per capita water is only a quarter of the world's average rate, ranking NO.110 among all 149 countries around the world. Currently, among more than 670 cities, there are 500 cities has the water scarcity problem, in which about 130 cities are seriously lack of water. Overall cities have 6 billion square meters per year shortage of water , in which the daily water volume is more than 16.05 million square meters, and increasing all the time. In fact, not all the cities have no water, they need water that clean and drinkable. According to the National Water Resources research about the annual emission of polluted and waste water around the six major river basins, the survey estimated that the current national annual emissions of sewage now reached 56.66 trillion square meters high, of which more than 80% of untreated sewage are directly into the waters, more than 90% of urban water are seriously polluted .
There will growth of water born diseases increasing health hazards and degradation of environment and ecosystems. This affects the natural environment system leading to exaction of some species. And the due contamination of water can also lower the production of agriculture products and other economy activities will decrease. If there will more water bodies pollution it also has negative effects on its environment there decline of economy of the country. Since more of the country budget have invest on the health sectors. The country major users of water are agriculture, intensification hydropower and industrialization. Urbanization is another significant challenge. Rural-urban migration increases pressure on urban infrastructure and services and cause environmental problems which will lead to water pollution.
There are many ways in which water pollution van be defined. Usually, it means one or more substances have built up in water to such an extent that they cause problems for animals or people. Pollutants in water means a wide range of chemicals, pathogens present in water bodies. Many chemical substances are toxic in nature. Pathogens cause various waterborne diseases. They also results in the change of physical and chemical properties of water which includes change in electrical conductivity and eutrophication of water. Human infectious diseases are among the most serious effects of water pollution. In India, urban areas produce approximately 5000 millions of wastewater annually that includes both domestic and industrial waste. If the data of rural areas is also taken into account, the overall figure will be much higher. As the United Nations Report that was released on March 22, 2010 on the occasion of World water day shows that in India 80% of wastewater is directly discharged in river without giving any treatment or checking pollutants. Poor governance from the side of government is also responsible for the creation of such devastating conditions. A growing number of bodies of water in India are unfit for human use and in the River Ganga holy to the country's 82 percent Hindu majority, is dying slowly due to unchecked pollution.
Along with the development of biotechnology, there are more and more researches related to biofortification. Biotechnologists have already discovered how to strengthen the features of crop plants to enhance their nutritional value. In the 21st century, the advancement of nutritional health is one of the considerable issues because of the constantly rising and aging world population (Blancquaert et al., 2014). The meaning of fortification is to increase some essential nutrients in a food deliberately, such as vitamins and minerals (including trace elements), in order to improve the nutritional quality of food provision and to supply public health benefits at a minimum of health risks. While biofortification refers to the process of improving
The main aim of wastewater treatment is to produce wastewater that can be safely disposed off, without causing harm or infection in humans and other animals. Wastewater generated by all processes - ranging from the personal use of water to industrial use - needs to be disposed in rivers and lakes. The pathogens present in wastewater can cause serious enteric infections and therefore need to be removed before they can proliferate via the sources of water such as lakes and rivers. The conventional methods of wastewater treatment are successful in a considerable reduction of organic and microbial load in wastewater. They also make use of certain microorganisms that aid the purification process. Further studies in the field have lead
The consumption of contaminated water can be dangerous for health reasons and several people have passed away from these water-borne diseases. Some of these diseases include Cholera, Typhoid, Dysentery, Giardiasis, and Malaria. These unfortunate diseases are currently the cause of numerous deaths, especially in small children. The availability of clean water can prevent many problems in low-income communities. The available resources for clean water are very rare, so these water sources need to pass through a process of water sanitation in order to just be sustainable to drink, “The world’s surface is made up of approximately 80% water, which is an indestructible substance.
The problem of water scarcity has increasingly spread throughout the world as of yet, The UN reports that within the next half- century up to 7 billion people in 60 countries which is more than the whole present population will face water scarcity (Sawin “Water Scarcity could Overwhelm the Next Generation”). As well the demand for freshwater has tripled over the past 50 years, and is continuing to rise as a result of population growth and economic development. 70% of this demand derives from agriculture which shows the influence of water on food supply globally as well not just drinking water (Sawin “Water Scarcity could overwhelm the Next Generation”). But increasing water use is not just a matter of the greater number of people needing it to drink and eat; it also comes from pollution and misuse of water supplies, by either dumping or runoff of bacteria or chemicals into water. This also “causes other pollutions as well such as soil and air pollution, accelerating wetland damage and human caused global warming” (Smith and Thomassey 25). According to UN report, recent estimates suggest that climate change will account for about 20 percent of the increase in global water scarcity in coming decades.
Improvement and upgrading of wastewater treatment processes and also the need to reduce the environmental factors make the use of tertiary wastewater treatment important.
Are you aware of the detrimental impacts that we have had on our environment? Every second, the Earth is being polluted by poisonous gases, waste products and due to human activities, the world’s climate is dramatically changing. In other words, these impacts do not only harm our environment but also our health. It has been scientifically proven that air pollution causes respiratory diseases and cancer, due to the inhalation of all the harmful chemicals. Water pollution can also lead to typhoid, diarrheal diseases and other waterborne disease, due to the intake of bacteria and parasites. Many people have died due to these health-related illnesses. So why are we still living in this awful condition? Air sustains us and water is a basic necessity, so we should do what we can to prevent pollution. In short, we should protect our environment to ensure a healthy life a...