Lime stabilization facility gets New York City contract

Phillipsburg, New Jersey

About 200 wet tons/day of anaerobically digested biosolids from New York City are being processed by Hydropress Environmental Services, Inc. at its facility in Phillipsburg. Hydropress utilizes the N-Viro alkaline stabilization process. The plant began processing 100 wet tons/day of New York City biosolids in August, 1998, and scaled up to the contracted flow of 200 wet tons/day in late September, says Dana Taylor of Hydropress. The incoming solids content is 26 to 28 percent, he adds. The company has a 15-year contract with New York City with an estimated total revenue to Hydropress of more than $100 million, according to N-Viro International.

Biosolids from Rahway Valley, New Jersey, Yonkers, New York and several other generators also are processed in Phillipsburg - for total plant throughput of 350 to 400 wet tons/day. Almost all of the finished product is sold as an agricultural lime to farmers for use on corn, topdressing hay, etc. "Once we get our new permit from the New Jersey Department of Environmental Protection - which classifies our product as a Class A material with widespread distribution - we will start manufacturing topsoil as well," says Taylor. "We are looking at blending N-Viro soil with leaf compost and sand."