Waste Paper Recycling | Corrugated Cardboard, Newspapers, Magazines, White Office Paper, Mixed Paper Recycling Process
Waste paper recycling is the process by which waste paper is turned into new paper products. The waste paper recycling process involves the collection, sorting, shredding and pulping, filtering, conterminal removal and de-inking, and finishing for reuse of waste paper. Waste papers are obtained from discarded paper materials, paper mill paper scraps, and waste paper material discarded after consumer use. Waste paper, such as old newspapers, magazines, corrugated, wrapping, and packaging papers, among others, are recycled for reuse. The waste papers to be recycled are collected from the waste locations then sent to paper recycling facilities for further processing. Waste paper recycling offers various advantages, such as saving energy, water, and landfill space. Waste paper recycling reduces greenhouse gas emissions, and recycled fiber is a sustainable, cost-saving resource for making new paper products.
4. Screening
The mushy pulp is then screened. Basically the pulp is pushed through screens that have holes and slots of different shapes and sizes.
5. Cleaning
After screening, the pulp is cleaned further to remove any contaminants by spinning the mushy mixture.
Heavy objects like staples, paper clips, and plastic pins are thrown from the cylindrical cone shaped vats, while lighter particles gather in the center from where it is safely removed.
6. De-Inking
After this, depending on the paper, the pulp might go through the de-inking phase.
This process removes printing ink and glue residues and adhesives.
7. Washing
Deinking is a two-stage process.
The washing stage involves rinsing pulp with water to remove the ink particles.
However larger and sticky particles might need the floatation process.
For this the pulp is put in floatation vat in which air and chemicals known as surfactants are added.
Ink and other particles attach themselves to air particles, float to the surface where they are removed as scum.
9. Bleaching
The paper is then treated further to separate all of the color particles from the mush. After this, if white paper is going to be made then hydrogen peroxide, oxygen or chlorine dioxide is used to bleach it. If cardboard is to be made, then the pulp is not bleached.
10. Rolling
The pulp is then sprayed onto wire screens, which drains the water and bonds the recycled fibres to form a watery paper sheet.
This watery sheet is pressed through a number of press rollers to remove all the water.
It is then dried using heated metal rollers and wound into a giant roll.
Each roll can be as wide as 30 feet and weight as much as 20 tons. Recycled paper is ready.
Recycling paper is one of the best ways to save the trees and protect the environment. Nearly 80% of the paper we use can be recycled.
1. Sorting
The process of recycling starts with sorting the paper. This can be done at home or at a recycling center.
The paper is sorted by removing any contaminants like plastic, metal or other trash. Paper stained with food is also removed during this process.
2. Transporting
The papers are then tied and transported to warehouses for storage. From there they are transferred to the pulper.
3. Pulping
The pulper is a large vat that has chemicals and water. The paper is chopped into tiny pieces and then heated in the vat. This turns the cellulose fibers into mush.
The process of recycling starts with sorting the paper. This can be done at home or at a recycling center.
The paper is sorted by removing any contaminants like plastic, metal or other trash. Paper stained with food is also removed during this process.
2. Transporting
The papers are then tied and transported to warehouses for storage. From there they are transferred to the pulper.
3. Pulping
The pulper is a large vat that has chemicals and water. The paper is chopped into tiny pieces and then heated in the vat. This turns the cellulose fibers into mush.
4. Screening
The mushy pulp is then screened. Basically the pulp is pushed through screens that have holes and slots of different shapes and sizes.
5. Cleaning
After screening, the pulp is cleaned further to remove any contaminants by spinning the mushy mixture.
Heavy objects like staples, paper clips, and plastic pins are thrown from the cylindrical cone shaped vats, while lighter particles gather in the center from where it is safely removed.
6. De-Inking
After this, depending on the paper, the pulp might go through the de-inking phase.
This process removes printing ink and glue residues and adhesives.
7. Washing
Deinking is a two-stage process.
The washing stage involves rinsing pulp with water to remove the ink particles.
However larger and sticky particles might need the floatation process.
For this the pulp is put in floatation vat in which air and chemicals known as surfactants are added.
Ink and other particles attach themselves to air particles, float to the surface where they are removed as scum.
9. Bleaching
The paper is then treated further to separate all of the color particles from the mush. After this, if white paper is going to be made then hydrogen peroxide, oxygen or chlorine dioxide is used to bleach it. If cardboard is to be made, then the pulp is not bleached.
10. Rolling
The pulp is then sprayed onto wire screens, which drains the water and bonds the recycled fibres to form a watery paper sheet.
This watery sheet is pressed through a number of press rollers to remove all the water.
It is then dried using heated metal rollers and wound into a giant roll.
Each roll can be as wide as 30 feet and weight as much as 20 tons. Recycled paper is ready.
Recycling paper is one of the best ways to save the trees and protect the environment. Nearly 80% of the paper we use can be recycled.
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