Solid waste disposal
AssigneeFirst Dominion Holdings, Inc.
InventorThomas J. Wiens
Life of this patent
Estimating the term…
Abstract
A system and a process for treating solid waste are disclosed. The system includes a facility having one or more treatment lines for processing the solid waste to recover recyclable and useful materials such as corrugated paper, ferrous metals, plastic products, paper, and glass and to form various fractions which can be converted to a compost material. The facility is a substantially zero discharge facility having a minimal environmental impact.
Claims19
A process for treating solid waste materials and forming a compost from biodegradable waste material fractions, said process comprising:
- receiving untreated solid waste material at a receiving station;
- manually removing bulky valuables and non-processable materials from said untreated waste material;
- separating said waste material into a first fine fraction, and at least one other fraction;
- conveying said first fine fraction to a composting station;
- separating redeemable materials including a non-ferrous metal fraction and a first ferrous metal fraction from said at least one other fraction of waste material;
- said separating redeemable materials step including passing said at least one other waste material fraction through an eddy current separator for removing said non-ferrous metal fraction and then through a magnetic separator to remove said first ferrous metal fraction;
- comminuting said at least one other fraction after separating out said first ferrous metal fraction;
- pneumatically separating a paper fraction from said comminuted waste material leaving a substantially biodegradable fraction;
- and
- forming a compost from said substantially biodegradable fraction and said first fine fraction.
A system for treating solid waste materials and forming a compost from biodegradable waste material fractions, said system comprising:
- a station for receiving untreated solid waste material;
- means for removing bulky valuable and non-processable materials from said untreated solid waste material while said material is in said receiving station;
- means for conveying said waste material less said bulky valuable and non-processable materials to at least one treatment line;
- and
- each said treatment line including means for separating said waste material into a first fine fraction and at least one other fraction, means for conveying said first fine fraction to a composting area, a first station for manually removing plastic and glass from said at least one other fraction, a second station for separating a non-ferrous metal fraction from said at least one other fraction, a third station for separating a first ferrous metal fraction from said at least one other fraction, first means for comminuting said at least one other fraction after it passes through said third station, a fourth station for separating a paper fraction from said comminuted material and thereby leaving a substantially biodegradable fraction, and means for conveying said biodegradable fraction to said composting area.
Dependencies are inferred from the claim text.