
Interpretation:
The difference between recycling and reprocessing should be written.
Concept introduction:
The plastic industries were no doubt being very useful in manufacturing various day to day products in daily use, but the outcome of its waste or disposal was alarming. The non-degradable nature of plastic is a threat to environment as it had started to pollute and contaminate the earth.
In this way, the waste management of plastic industrial waste and the consumed good wastes was important which led to the concept of recycling and reprocessing of the plastic materials and wastes, which could be used again. For this, the federal government passed the resource conservation and recovery act (RCRA) in 1977, which worked over reprocessing, recycling and incineration of materials.

Answer to Problem 2.1Q
Recycling is the process of treating the once consumed plastic materials in such a way that it could be again used in production of further plastic materials, while the reprocessing is a process of using those waste plastics or by-products which were generated during manufacturing of plastic materials.
Explanation of Solution
Reprocessing and recycling are two different terms which look similar. Actually, both the methods have same goal as to use waste plastics but the application of the procedures are different.
Recycling is a procedure which is applied on such plastic materials which are already used − for example, bottles, containers etc. These used materials when become waste, they are sent to the recycling industries and they recycle and clean the plastics from the materials and mold and purify them to make available for further production.
Reprocessing is a procedure of reuse of plastic wastes which are generally generated during the manufacturing. These wastes are by products, or defective products which cannot be sold and used by manufacturing agencies. These products are again processed to make some new products.
Recycling is the process of treating the once consumed plastic materials in such a way that it could be again used in production of further plastic materials while the reprocessing is a process of using those waste plastics or by-products which were generated during manufacturing of plastic materials.
Want to see more full solutions like this?
Chapter 2 Solutions
Industrial Plastics: Theory and Applications
- For spherical sand particles with Dp = 0.03 and ρparticles = 150 lbm / ft3 estimate the minimum fluidizing velocity for air and for water. Assume ε = 0.3. In the case of the water we must rederive Eq. 11.42, taking into account the buoyant force on the particles. Below are the provide answers. Please show all work to get to the correct answers.arrow_forwardPlease show all workarrow_forward2. A moving bed adsorption column needs to be designed to separate hydrophobic proteins from a fermentation broth. The following adsorption equilibrium data was observed in preliminary isotherm studies. The resin used was activated carbon with a porosity of 0.2. The overall mass transfer coefficient was determined to be 10 h¹, and the ratio of volumetric flow rate of broth to resin is 10. Determine the diameter of the column if the column height is limited to 2.5 m (indoor operation) with a flow rate of 20 m³/h, influent concentration of 7 g/L, and effluent concentration of 0.1 g/L. qi (mg/kg) Ci (g/L) 0.1 4.7 7.5 0.25 10.6 0.5 15.0 1.0 23.7 2.5 33.5 5.0 41.1 7.5arrow_forward
- 3. You are given a mixture of four proteins, whose properties are listed in the table below. Propose a process to purify each protein so that you end up with four solutions of pure protein. What resin would you use to bind the protein(s)? What changes to the buffer would you make to desorb the protein(s)? Contains an N-terminal His6-tag. Two 50 kDa subunits contain a non-heme Fe2+ in the active site. Protein Size (kDa) pl Specific Properties A 100 6.0 B 40 7.7 C 240 8.3 Ꭰ 225 5.5 Contains FAD redox center and an NADH binding domain. Composed of six 40-kDa subunits, each of which contains a [2Fe-2S] cluster. Composed of three subunits: 100 kDa structural subunit, 75 kDa subunit with a molybdopterin center, and 50 kDa subunit with FAD and an NADH binding domain.arrow_forwardb) Explain the key features of the Langmuir adsorption model - Drawing a diagram with empty and occupied sites. Show how new molecules would adsorb. drawing the diagram, showing free and empty sites, and their number (to use for next section) - Define the capacity and binding affinity parameters in terms of things shown on the diagram Defining the capacity and binding affinity parameters in terms of bound, free sites, and free molecules - Plot what would be a typical breakthrough curve and give an explanation approximately when breakthrough would occur plotting a typical sigmoidal breakthrough curve and saying it would certainly occur by the time capacity is used, but also could be much earlier if the affinity is lowarrow_forwardWater at 20°C flows at a steady average velocity of 5.25 m/s through a smooth pipe of diameter 5.08 cm. The flow is fully developed through the entire section of pipe. The total pipe length is 10.56 m, and there are two 90' elbows. Determine the friction coefficient and the head loss due to friction per meter length of the pipe. Control volume Prepared by Engr. Kirsten Gaarrow_forward
- Introduction to Chemical Engineering Thermodynami...Chemical EngineeringISBN:9781259696527Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark SwihartPublisher:McGraw-Hill EducationElementary Principles of Chemical Processes, Bind...Chemical EngineeringISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEYElements of Chemical Reaction Engineering (5th Ed...Chemical EngineeringISBN:9780133887518Author:H. Scott FoglerPublisher:Prentice Hall
- Industrial Plastics: Theory and ApplicationsChemical EngineeringISBN:9781285061238Author:Lokensgard, ErikPublisher:Delmar Cengage LearningUnit Operations of Chemical EngineeringChemical EngineeringISBN:9780072848236Author:Warren McCabe, Julian C. Smith, Peter HarriottPublisher:McGraw-Hill Companies, The





