The Papermaking Industry: Mechanical Pulping
Mechanical pulping methods avoid many of the environmental impacts created by the Kraft pulping process. Several different mechanical pulping methods are commonly used today, but they all rely primarily on energy rather than chemicals to convert wo...
The Papermaking Industry: Recycled Pulping
Approximately forty percent of the fiber in U.S. paper products is recycled, or secondary, fiber. Re-pulping fibers that have already been processed shortens them and weakens their bonding capacity, so secondary fiber is often mixed with virgin fib...
Pollution Prevention: Bridging Troubled Water: Alternative Pulp and Paper Bleaching Technology
Facing a lawsuit charging it with discharging toxic effluent in the water off the coast of northern California, Louisiana Pacific knew it needed to change the way its pulp mills operated. Even though it successfully met the mandates of the lawsuit ...
Pollution Prevention: Bridging Troubled Water: Pulp and Paper Industry Regulations
The transformation of wood or other raw materials into pulp through chemical or mechanical processes is a water intensive process that creates large residues of waste materials. However, prior to the 1970's, the pulp and paper industry was largely u...
The Papermaking Industry: Papermaking and Pollution Control
From pulping, to bleaching, to forming sheets on the paper machine, papermaking creates air emissions, water emissions--or effluent--as well as solid waste. However, the environmental impacts of the process are mitigated by a variety of treatment m...