PW July Extras

Trading away pollution

Wastewater managers in southwest Ohio use water quality trading to reduce nutrient levels in local waterways.

A primer on the EPA's Water Quality Trading Policy

Although water quality trading programs have been conducted in a handful of states since the 1990s, interest spiked after the EPA released its Water Quality Trading Policy in 2003.

Intended as a guideline for states to develop voluntary trading programs, the policy sets forth recommendations for establishing a framework to facilitate the development of pollution credits and the means by which such credits can be traded among point sources, or among point sources and nonpoint sources. Click here for more.


Read on at

Partners in plastic

Los Angeles enters the final frontier in curbside recycling.

Olympic Wire and Equipment Inc. distributes the Danish-made Runi Screw Compactor, which densifies all types of polystyrene to a ratio of 50:1. The odor-minimizing, volume reduction process, which can be hand- or conveyer-fed, breaks up the material and drops it into an auger. The machine then compacts the material into 19-pound/cubic-foot blocks that can be marketed or shipped. The end-product can produce a full overseas container load of 40,000 pounds.

Timbron International Inc. produces decorative non-structural wood-alternative products that minimize the consumption of natural resources. Interior moldings are composed of 90% recycled plastic: 75% post-consumer and15% pre-consumer.