How do you find concentration in MLSS? Mixed liquor suspended solids are the solids under aeration. MLSS is measured by filtering a known volume of the mixed liquor sample, which is the same way that suspended solids are measured in wastewater. Some of the MLSS may be an inorganic material. What causes high ammonia in […]
How did humans modify the environment to build railroads?
How did humans modify the environment to build railroads? Digital Public Library of America. Human modifications include paving over vegetated areas, constructing buildings, building bridges, draining wetlands, removing or adding trees, building dams, irrigating etc. How were Native Americans impacted by the construction of the transcontinental railroad? The construction of the Transcontinental Railroad had dire […]
What is the mechanical advantage of three pulleys?
What is the mechanical advantage of three pulleys? A 3:1 pulling on another 3:1 gives you a mechanical advantage of 9:1. A system that is neither simple or compound is a complex pulley system. The 5:1 shown is a complex system. As the mechanical advantage increases, the amount of rope that must be pulled through […]
What is the equilibrium wage in this labor market?
What is the equilibrium wage in this labor market? The equilibrium market wage rate is at the intersection of the supply and demand for labour. Employees are hired up to the point where the extra cost of hiring an employee is equal to the extra sales revenue from selling their output. Why does the Monopsonist […]
What is a feedback control system?
What is a feedback control system? A feedback control system is a system whose output is controlled using its measurement as a feedback signal. This feedback signal is compared with a reference signal to generate an error signal which is filtered by a controller to produce the system’s control input. Which is the output of […]
What is twinning in plastic deformation?
What is twinning in plastic deformation? In twinning each plane of atoms move through a definite distance and in the same direction. When a shear stress is applied the crystal will twin about the twinning plane in such a way that the region to the left of the twinning plane is not deformed where as […]
Is Western Blot SDS-PAGE?
Is Western Blot SDS-PAGE? SDS-PAGE is an electrophoresis method that separates proteins by mass. Western blot is an analytical technique to identify the presence of a specific protein within a complex mixture of proteins, where gel electrophoresis is usually used as the first step in procedure to separate the protein of interest. What are the […]
What are the water treatment methods?
What are the water treatment methods? Processes Chemical. Tanks with sand filters to remove precipitated iron (not working at the time) Physical. Sedimentation for solids separation that is the removal of suspended solids trapped in the floc. Physio-chemical. Biological. Desalination. Portable Water Purification. Boiler water treatment. Cooling water treatment. How do you purify wastewater? Four […]
What is technology and example?
What is technology and example? Technology is the way we apply scientific knowledge for practical purposes. It includes machines (like computers) but also techniques and processes (like the way we produce computer chips). In fact, a hammer and the wheel are two examples of early human technology. What is world technology? “The World Technology Network […]
What is bioremediation of soil?
What is bioremediation of soil? Bioremediation is a branch of biotechnology that employs the use of living organisms, like microbes and bacteria, in the removal of contaminants, pollutants, and toxins from soil, water, and other environments. Bioremediation is used to clean up oil spills or contaminated groundwater. What are some examples of bioremediation? Bioremediation companies […]