Task 4. Homework. Define a mass balance and amounts of separated waste fractions for the sorting...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Task 4. Homework. Define a mass balance and amounts of separated waste fractions for the sorting facility which is handling MSW. Also define capacity (t/h) for various separating machines when facility is operating 16 hours in a day. The incoming MSW mass flow is 1 000 t/d. Waste treatment process consist of presorting, manual sorting, crushing, air flow separation, metal separation and cyclone. In the manual presorting of MSW 1.0% of the total mass is separated (large-size waste, domestic appliances). Table 2 shows the waste composition after the manual presorting. From the aluminum cans in the presorted MSW (Table 2), 60% can be recovered in manual sorting. The moisture content of food and garden waste is 20% before crushing. In the crushing process (following the manual sorting), the mass loss of water is 20% for food and garden waste. This means that water escapes from waste when it is crushed. Air separation separates the incoming waste to heavy fraction and light fraction. Light fraction mainly composes of food, paper, cardboard, plastic, rubber, leather, garden waste and wood. Heavy fraction is mainly composed of glass, tin cans, aluminum cans, other metals, dirt etc. Since the air separation can't separate 100% efficiently these materials, there is also materials belonging to heavy fraction in the light fraction and vice versa. In the total amount of light fraction, there is 6% of each material considered belonging to heavy fraction (glass etc.). In the heavy fraction, there is 10% of each material considered belonging to light fraction (food, paper etc.). After the air separation the heavy fraction goes to magnetic separation where the recovery rate of magnetic metals is 85 %. MSW 1 000 t/d RECIEVING STATION MANUAL PRESORTING HOUSE APPLIENCES ETC. BAG OPENING MANUAL SORTING ALUMINIUM CANS CRUSHING REDUCED MOISTURE AIR SEPARATION HEAVY FRACTION METAL SEPARATION MAGNETIC METALS LIGHT FRACTION AIR SEPARATION AIR DUST DUST REMOVAL CYCLONE Figure 1. Flowchart of mechanical treatment line for MSW. REJECT Incoming MSW flow: 1000 t/D In the manual pre-separation, a large matter, domestic appliances and others dirties are separated. Amount of the waste after pre-separation Amount of the waste after pre-separation: 990 t/d Waste fraction Composition of manually pre- separated waste Mass of waste fraction Weight after manual separation [p-%] Organic/Light fraction Weight after Mass of waste fraction manual separation food 8 79.2 79.2 paper 35.8 354.42 354.42 cardboard 6.4 63.36 63.36 plastic 6.9 68.31 68.31 textile 1.8 17.82 17.82 rubber 0.4 3.96 3.96 leather 0.4 3.96 3.96 garden waste 17.3 171.27 171.27 wood 1.8 17.82 17.82 Inorganic /Heavy fraction glass 9.1 90.09 90.09 tin cans 5.8 57.42 57.42 aluminum cans 0.6 5.94 2.38 other metals 3 29.7 29.70 dirt, ash etc. 2.7 26.73 26.73 Overall 100 food paper Waste fraction cardboard plastic textile gum leather Weight after manual separation [t/d] Organic /light fraction 79.2 Decrease of humidity from light fraction [t/d] 12.67 Weight after crusher [t/d] 66.528 354.42 63.36 68.31 17.82 3,96 3,96 171.27 17.82 garden waste wood glass tin cans aluminum cans other metals dirt. ash etc. Overall Inorganic /heavy fraction 90.09 57.42 2.38 29.7 26.73 986.44 354.42 63.36 68.31 17.82 3,96 3,96 6.85 164.42 17.82 90.09 57.42 2.38 29.7 26.73 Waste fraction Weight after crusher Light fraction going to heavy fraction [t/d] [t/d] Heavy fraction going to light fraction [t/d] Light fraction after air separation Heavy fraction after air separation [t/d] [t/d] food 66.528 6.65 59.88 6.65 paper 354.42 35.44 318.98 35.44 cardboard 63.36 6.34 57.02 6.34 plastic 68.31 6.83 61.48 6.83 textile 17.82 1.78 16.04 1.78 gum 3.96 0.40 3.56 0.40 leather 3.96 0.40 3.56 0.40 garden waste 164.42 16.44 147.98 16.44 wood 17.82 1.78 16.04 1.78 Inorganic/Heavy fraction glass 90.09 5.41 5.41 84.68 tin cans 57.42 3.45 3.45 53.97 aluminum cans 2.38 0.14 0.14 2.23 other metals 29.7 1.78 1.78 27.92 dirt. ash etc. 26.73 1.6 1.6 25.13 Overall 966.92 Unit operation Total mass [t/d] Crusher Air flow separator Metal separator 986.44 966.92 INPUT MSW Overall Capacity [t/h] Mass [t/d] OUTPUT 1000 Large part fraction Aluminum cans Wastage of humidity at crusher Light fraction Magnetic metals Abandoned material 1000 from heavy fraction Mass [t/d] 1000 Task 4. Homework. Define a mass balance and amounts of separated waste fractions for the sorting facility which is handling MSW. Also define capacity (t/h) for various separating machines when facility is operating 16 hours in a day. The incoming MSW mass flow is 1 000 t/d. Waste treatment process consist of presorting, manual sorting, crushing, air flow separation, metal separation and cyclone. In the manual presorting of MSW 1.0% of the total mass is separated (large-size waste, domestic appliances). Table 2 shows the waste composition after the manual presorting. From the aluminum cans in the presorted MSW (Table 2), 60% can be recovered in manual sorting. The moisture content of food and garden waste is 20% before crushing. In the crushing process (following the manual sorting), the mass loss of water is 20% for food and garden waste. This means that water escapes from waste when it is crushed. Air separation separates the incoming waste to heavy fraction and light fraction. Light fraction mainly composes of food, paper, cardboard, plastic, rubber, leather, garden waste and wood. Heavy fraction is mainly composed of glass, tin cans, aluminum cans, other metals, dirt etc. Since the air separation can't separate 100% efficiently these materials, there is also materials belonging to heavy fraction in the light fraction and vice versa. In the total amount of light fraction, there is 6% of each material considered belonging to heavy fraction (glass etc.). In the heavy fraction, there is 10% of each material considered belonging to light fraction (food, paper etc.). After the air separation the heavy fraction goes to magnetic separation where the recovery rate of magnetic metals is 85 %. MSW 1 000 t/d RECIEVING STATION MANUAL PRESORTING HOUSE APPLIENCES ETC. BAG OPENING MANUAL SORTING ALUMINIUM CANS CRUSHING REDUCED MOISTURE AIR SEPARATION HEAVY FRACTION METAL SEPARATION MAGNETIC METALS LIGHT FRACTION AIR SEPARATION AIR DUST DUST REMOVAL CYCLONE Figure 1. Flowchart of mechanical treatment line for MSW. REJECT Incoming MSW flow: 1000 t/D In the manual pre-separation, a large matter, domestic appliances and others dirties are separated. Amount of the waste after pre-separation Amount of the waste after pre-separation: 990 t/d Waste fraction Composition of manually pre- separated waste Mass of waste fraction Weight after manual separation [p-%] Organic/Light fraction Weight after Mass of waste fraction manual separation food 8 79.2 79.2 paper 35.8 354.42 354.42 cardboard 6.4 63.36 63.36 plastic 6.9 68.31 68.31 textile 1.8 17.82 17.82 rubber 0.4 3.96 3.96 leather 0.4 3.96 3.96 garden waste 17.3 171.27 171.27 wood 1.8 17.82 17.82 Inorganic /Heavy fraction glass 9.1 90.09 90.09 tin cans 5.8 57.42 57.42 aluminum cans 0.6 5.94 2.38 other metals 3 29.7 29.70 dirt, ash etc. 2.7 26.73 26.73 Overall 100 food paper Waste fraction cardboard plastic textile gum leather Weight after manual separation [t/d] Organic /light fraction 79.2 Decrease of humidity from light fraction [t/d] 12.67 Weight after crusher [t/d] 66.528 354.42 63.36 68.31 17.82 3,96 3,96 171.27 17.82 garden waste wood glass tin cans aluminum cans other metals dirt. ash etc. Overall Inorganic /heavy fraction 90.09 57.42 2.38 29.7 26.73 986.44 354.42 63.36 68.31 17.82 3,96 3,96 6.85 164.42 17.82 90.09 57.42 2.38 29.7 26.73 Waste fraction Weight after crusher Light fraction going to heavy fraction [t/d] [t/d] Heavy fraction going to light fraction [t/d] Light fraction after air separation Heavy fraction after air separation [t/d] [t/d] food 66.528 6.65 59.88 6.65 paper 354.42 35.44 318.98 35.44 cardboard 63.36 6.34 57.02 6.34 plastic 68.31 6.83 61.48 6.83 textile 17.82 1.78 16.04 1.78 gum 3.96 0.40 3.56 0.40 leather 3.96 0.40 3.56 0.40 garden waste 164.42 16.44 147.98 16.44 wood 17.82 1.78 16.04 1.78 Inorganic/Heavy fraction glass 90.09 5.41 5.41 84.68 tin cans 57.42 3.45 3.45 53.97 aluminum cans 2.38 0.14 0.14 2.23 other metals 29.7 1.78 1.78 27.92 dirt. ash etc. 26.73 1.6 1.6 25.13 Overall 966.92 Unit operation Total mass [t/d] Crusher Air flow separator Metal separator 986.44 966.92 INPUT MSW Overall Capacity [t/h] Mass [t/d] OUTPUT 1000 Large part fraction Aluminum cans Wastage of humidity at crusher Light fraction Magnetic metals Abandoned material 1000 from heavy fraction Mass [t/d] 1000
Expert Answer:
Related Book For
Cost Benefit Analysis Concepts and Practice
ISBN: 978-0137002696
4th edition
Authors: Anthony Boardman, David Greenberg, Aidan Vining, David Weimer
Posted Date:
Students also viewed these mechanical engineering questions
-
Financial Statement Analysis Project. Use Excel to calculate the following: Company: The Coca - Cola Company ( KO ) Liquidity ratios: Working capital, Current ratio Solvency ratios: Debt to assets,...
-
Samantha signs a contract with a lawyer to help her with her divorce in exchange for legal fees. The lawyer uses a courier on a regular basis to deliver time - sensitive documents that need to be...
-
Managing Scope Changes Case Study Scope changes on a project can occur regardless of how well the project is planned or executed. Scope changes can be the result of something that was omitted during...
-
Suppose you want to buy a house that is sold by way of a first-price sealed bid auction. In contrast to the model in the lecture, there are more than 2 players. Players simultaneously and...
-
Consider the following two-dimensional array: int X[64][64]; Suppose that a system has four page frames and each frame is 128 words (an integer occupies one word). Programs that manipulate the X...
-
Modern vacuum pumps make it easy to attain pressures of the order of 10-13 atm in the laboratory. (a) At a pressure of 9.00 X 10-14 atm and an ordinary temperature of 300.0 K, how many molecules are...
-
What is the difference between a holding-company plan and an operating-company plan?
-
You are provided with the following information taken from Langerhan Inc.s March 31, 2014, balance sheet. Cash..................... $ 11,000 Accounts receivable............... 20,000...
-
Calculus, please show all your step, paper solution is preferred In the exercise below, the initial substitution of x = a yields the form 0/0. Look for ways to simplify the function algebraically....
-
Required Information [The following Information applies to the questions displayed below.] In 2021, the Westgate Construction Company entered into a contract to construct a road for Santa Clara...
-
Calculate the expected return of GM's stock the using the Capital Asset Pricing Model. Use 1% as the risk- free rate, 1.3 as , and 5% as the expected market rate. GM's Expected Return using the...
-
Land Mark Facility Solutions 1. Why is Harris acquiring Landmark? What are the sources of synergies? Do you believe these synergies can be realistically achieved? 2. What is the appropriate discount...
-
Crazy Cliff's Car Coral crushes competition causing college customers considerable consternation. Crazy Cliff's has no debt and considering opening a new dealership - Crazier Cliff's. Crazy Cliff...
-
Determining PB Ratio for Companies with Different Returns Assume that the present value of expected ROPI follows a perpetuity with growth g (Value = Amount/ [r - g]). Determine the theoretically...
-
1.What is your experience with the UMUC Career Services? 3.If you are not a job seeker, highlight UMUC Career Quest resources to recommend to others 4.Explain how our course, ACCT 321 Cost...
-
Consider the following information for Federated Junkyards of America. . Debt: $65,000,000 book value outstanding. The debt is trading at 86% of book value. The yield to maturity is 9%. . Equity:...
-
After looking at the resources, explain what a spirit image is. Why might looking at a god and/or a human in terms of their spirit be helpful if you want to eliminate some of the divisions between...
-
Identify all the cyclic subgraphs of Graph \(C\). Use Graphs \(A, B\), and \(C\). Graph A Graph B Graph C
-
Identify all the cyclic subgraphs of Graph \(B\). Use Graphs \(A, B\), and \(C\). Graph A Graph B Graph C
-
Draw four spanning trees of Graph \(C\) that each have only one edge with an endpoint at vertex \(u\). Use Graphs \(A, B\), and \(C\). Graph A Graph B Graph C
Study smarter with the SolutionInn App