Company Filing History:
Years Active: 1991-1992
Title: Innovations by Eric W. Shafer in Environmental Engineering
Introduction
Eric W. Shafer is an accomplished inventor based in Sarasota, FL (US). He has made significant contributions to the field of environmental engineering, particularly in the area of waste management and construction materials. With a total of 2 patents, his work focuses on the immobilization of toxic elements found in incinerator ash.
Latest Patents
One of Eric W. Shafer's latest patents involves the immobilization of incinerator ash toxic elements in an environmentally friendly manner. This innovative composition is designed for use as a base in the construction of roads, parking lots, and other areas. The formulation consists of an ash aggregate made from municipal solid waste incinerator ash (MSWIA) mixed with an aggregate material. Upon the addition of cement, compaction, and curing, a volumetrically stable solid is formed. The process includes crushing and sifting the incinerator ash to remove larger particles before mixing with cement. The moisture content of the mixtures is carefully adjusted to achieve maximum compressive strength. When the ash aggregates contain less than 50 percent MSWIA and at least 5 percent cement by dry weight, stable solids with compressive strengths exceeding 300 psi are produced within seven days. These stable solids effectively immobilize heavy metals, ensuring that leachates from EPA toxicity tests remain below the maximum allowable concentrations for non-hazardous materials.
Career Highlights
Eric W. Shafer has been instrumental in advancing sustainable construction practices through his innovative approaches to waste management. His work not only addresses environmental concerns but also contributes to the development of safer construction materials.
Collaborations
Eric has collaborated with notable colleagues, including William W. Casey and Clarence E. Leisey, III, to further enhance the impact of his inventions in the field.
Conclusion
Eric W. Shafer's contributions to environmental engineering through his patents demonstrate his commitment to innovation and sustainability. His work in immobilizing toxic elements in incinerator ash is a significant step towards creating safer and more environmentally friendly construction materials.