Wastewater Treatment Composition of untreated domestic wastewater Constituent Abbreviation Concentration (mg/L) Biological oxygen demand BOD 100 – 3...
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Water Treatment Complete Process Since the early 1900’s sanitary engineers have been working in the United States to reduce waterborne diseases. In ...
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Water pollutants Water that has been withdrawn, used and then returned will be polluted in one way or another. Agricultural return water contains pest...
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There are many types of surveying and compass surveying is one of them and plays an important part. We can define it as a type of surveying in which d...
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Measuring distance with the help of chain is the most common and accurate method. In this method, the horizontal or linear distances are measured with...
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In this article, we will discuss some basic points that are very important during surveying, because these are the terms that are used in every type o...
Read more Angles, Azimuths, Bearings and Meridians in Engineering Survey
In this type of survey, graphs are plotted using those observations that are made in the field, plotting of graph is done just after noting those obse...
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Traversing A geometrical figure, consisting of a series of consecutive survey lines is called traverse. Points joining these lines are called traverse...
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Theodolite: In survey, a theodolite is an instrument mounted with a moveable telescope, used for precise measurements of horizontal and vertical angle...
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Base Line Measurement Method In surveying procedures such as traversing, triangulation, trilateration, and setting out, baseline measurement is very i...
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