HERWIT Engineering is one of the leaders in the design and installation of active solar drying systems using Parkson technology. Having seen the effective use of this technology in other parts of the country as well as abroad in Europe, we have integrated this solution to meet the solids handling goals of our Northern California clients. We customize the technology to meet the specific needs and goals of each project. We lend our expertise through the master planning stages, design, and eventual construction of your facilities.

We design active solar drying systems for year-round Class-A Biosolids and solid composition of 75% or higher that use fewer chemicals and less energy. Our efficient designs also require less manpower, which provides extensive operational flexibility.