How many dump trucks and excavators will you use to extract 100,000 cubic meters of coal in 1 month, under the following conditions. Truck cycle time = 15mins Truck capacity = 18 cubic meters Excavator loading time and waiting time= 3mins Bucket capacity 3 cubic meters 7hrs per day 26 days per month

Q: The Abesim Stone Works employs six people. Assuming that the density of uncompacted waste is 480…

A: The rate of waste generation:R = 1 Kg / capita X dayWe have 6 people generating waste, so we…

Q: 20. If the barge in Problem 19 is loaded with 240,000 lb of loose coal having an average density of…

A:

Q: Millard Manufacturing must replace one of its pumps. The net present cost of Alternative A is…

A: Following are the given information. Net present cost of Alternative A =$8,956. Net present cost of…

Q: A vegetable processing plant discharges its wastewater to a treatment pond with an area of 10,000 m³…

A:

Q: The expected production of a pneumatic roller is 665 CCY/h. The lift thickness is 8 inches, with a…

A: Given data Production = 665 CCY/h Lift thickness L = 8 in Roller width W = 10 ft Efficiency E = 85%

Q: A town is generating waste water at a rate of 1000 m3/day that is to be treated using a circular…

A: Given: Rate of flow, Q = 1000 m3/day Overflow rate of tank= 15 m/day

Q: It is desired to pump ethanol at 20°C through 280 m of straight smooth tubing under laminar-flow…

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Q: A cement kiln with production capacity of 130 tons per day (24 hours) of clinker has at its burning…

A: ParticularLocal BricksImported bricksCost P30,000P25,000Life 5 month6 monthMagnetic Chrome bricks…

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Q: A company that sells high-purity laboratory chemicals is considering investing in new equipment that…

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Q: al fired power plant is served by 25 trucks. When loaded, each truck consists of one single-axle of…

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Q: In what ratio must a beans costing $ 240.00 per pound be mixed with a beans costing $ 340.00 per…

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Q: To be more sustainable, I want to catch all the rain that falls on my house during a typical summer…

A: It is called rain water harvesting. In this technique, rainwater is collected and then later is used…

Q: Problem 2Approximately 30 kg of consumer products are brought into a home by its residents on a…

A: Answer Mass Balance Diagram:Input: 30 kg of consumer Products Accumulation: 2 kg of products remain…

Q: A self-propelled combine with a four-row 101.6 cm (40 in) corn head has a list price of $40,000. The…

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Q: the 5-day BOD (BOD5) and ultimate BOD (BODu or L0)

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Q: Еxample Treatment plant with capacity 50*10° 1/day. This treatment plant required 20 mg/l alum. If…

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Q: If you could use different amounts so I can learn this better that would be great. A sewage…

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A: Given: F1=4 kNF2=5 kNF3=3 kNFrom the figure,xA=3yA=1xB=17yB=9xC=10yC=6

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A:

Q: The industry plans to release 4,000 L of 0.05 M hydrochloric acid into the lake every week. Given…

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Q: The Bailey Stone Works employs six people. Assuming that the density of uncompacted waste is 377…

A: Density of uncompacted waste = 377 kg/m3 Waste generation rate = 2.60 kg/cap d

Q: total solidification time

A: Volume: V=(14+8)2x4x10V=440 cm3

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Q: Calculate the Gross and Net calorific values of a coal having the following compositions, C = 63 %,…

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Q: What will the optimal duration of the downtime in years?

A:

Q: 7. If the BOD5 of two wastes having k values of 0.0800 d-¹ and 0.120 d'¹ is 280.0 mg/L, what would…

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A: Using standard relations we get changes in each quantity

Landfills

The landfill is a site used for the disposal of waste materials. The landfill is a solid waste facility that is often known as a dumping ground. The image below shows a landfill site in Hawaii. Landfilling is the most ancient and common method used for the disposal of waste. For the landfill, a deep trench is constructed in an isolated place away from the city. The trench for landfills is designed properly after analyzing the total population and the waste generation per capita. The waste is dumped into the trench and after every layer of waste, a layer of soil is spread on the top of it.