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Golf Course Construction and Renovation
Published in L.B. (Bert) McCarty, Golf Turf Management, 2018
Sump and pump drainage. A sump is considered a pit or reservoir serving as a drain receptacle for liquids (water). This sump is commonly in the form of a tank or several concrete rings placed on top of each other and enclosed with a cover (Figure 5.31). A low-lift pump (or sump pump) is then installed inside the sump at the lowest point with a float-activated switch so the water level may be controlled within specified limits. Once a predetermined amount of water is allowed to drain into the sump, the discharge water is then pumped up to an appropriate discharge area. Sumps should be located away from the fairway and in areas receiving little to no traffic. Covering the main drainage line outlet of the sump with a mesh wire screen is also advisable to prevent animals from entering and possibly causing damage.
Lift Stations
Published in Subhash Verma, Varinder S. Kanwar, Siby John, Environmental Engineering, 2022
Subhash Verma, Varinder S. Kanwar, Siby John
Sump pumps are located in the dry pit of a lift station. The sump pump removes water caused by the seepage of groundwater into the dry pit, excess from water-lubricated bearings, and spills left from servicing or washing out sewage pumps. The sump pit must be regularly cleaned to prevent clogging of the sump pump. The sump pit should be checked for clogging material and any found should be promptly removed and disposed of. The sump pump should also be checked to make sure that it is operable. Lifting the float that triggers the pump does this. If a hum is heard, the pump is operable. If the pump does not turn on when the float is lifted, the pump is not working and should be repaired or replaced.
Reliability Fundamentals II: System Reliability
Published in Edgar Bradley, Reliability Engineering, 2016
A building basement is equipped with a sump pump to prevent flooding. The following scenario has been decided on: During heavy rainstorms, flooding may still occur if the rate of water inflow exceeds the system’s capacity. Flooding may also occur for smaller inflows, if the system itself fails. The system consists of a primary pump operated by mains power and a battery-powered auxiliary pump. This auxiliary pump will cut in automatically if the mains power fails.
Investigation of the effects of particle size on the performance of classical gravity concentration equipment
Published in Mineral Processing and Extractive Metallurgy Review, 2022
Damla Izerdem, S. Levent Ergun
In this section, SA, SB, and SC denote the tests on Spiral A, Spiral B, and Spiral C, respectively. The SA, SB, and SC tests were performed for the spiral concentration tests. The spiral used for the SA tests was a laboratory-scale, single-start, 7-turn A87D assembly from Mineral Deposits Ltd., Australia, with a diameter of 600-mm and a length of 5-m. The equipment’s feed rate is between 1 and 2.5 t/h, and the pulp density is between 30 and 60% solids w/w. There are two splitters mounted at the bottom of the spiral through the surface, which can be easily adjusted according to concentrate flow. For the SA test, a closed-circuit experimental setup was used, in which the artificial mixture was mixed with water at a feed pulp density of 35% w/w, and the slurry was loaded into the sump-pump. The circulation line and valve setup on the feed line controlled the amount of pulp returned to the feed tank to adjust the feed rate. Tests were conducted at three different throughput values (SA1, SA2, and SA3) with a feed grade of 5.50% Fe3O4 (Sample #1). The feed rates of SA1, SA2 and SA3 were 0.4 m3/h (0.2 t/h), 1.0 m3/h (0.5 t/h) and 3.2 m3/h (1.6 t/h), respectively. The products (concentrate and tail) of each test were simultaneously collected in a steady state.
Demonstration of the Advanced Dynamic System Modeling Tool TRANSFORM in a Molten Salt Reactor Application via a Model of the Molten Salt Demonstration Reactor
Published in Nuclear Technology, 2020
M. Scott Greenwood, Benjamin R. Betzler, A. Lou Qualls, Junsoo Yoo, Cristian Rabiti
In the model of the off-gas system, specified fission products (i.e., gaseous products) are removed from the primary fuel salt pump bypass line at a specified efficiency using a helium carrier gas (Fig. 9). A portion of primary fuel salt that passes through the separator is carried to the drain tank at a rate dependent on the carrier gas flow rate. This salt is pumped from the drain tank back to the pump bowl of the PFL. The rate of fuel salt return from the drain tank can be controlled using the control settings of the drain tank sump pump. The carrier gas with the separated fission products also travels to the drain tank. The characteristic holdup time of the gas depends on the tank volume. From the drain tank, the gas is split at a specified ratio between a return line that runs directly back to the pump bowl and a charcoal adsorber bed. As the gas passes through the charcoal bed, substances decay, give off heat, and may become trapped. After exiting the charcoal bed, the carrier gas, along with any remaining substances that did not completely decay or that were otherwise filtered, is returned to the pump bowl.
Evaluation of a portable in-house greywater treatment system for potential water-reuse in urban areas
Published in Urban Water Journal, 2018
Shashi Kant, Fouad H. Jaber, R. Karthikeyan
Greywater samples were collected from the typical sources namely, laundry water (LW), shower water (SW), and washbasin (WB) in College Station, Texas and analyzed individually. The laundry water was collected as an equal proportion of wash and rinse cycle of a washing machine, and also covered different types of clothes from delicate to casual. The greywater from the washbasin represented 24 h of faucet use from student housing. The shower water was collected from bathtubs using a sump pump.