N-Viro International Corporation


N-Viro International Corporation (Symbol: NVIC) utilizes patented technologies to stabilize and disinfect municipal bio solids and other organic waste products. These technologies safely and efficiently transform waste streams into beneficial reuse products.

One of the N-VIRO technologies is the BioDry

Biosolids are the residual solids left over after the treatment of municipal wastewater. These include organic matter and inorganic compounds, as well as those produced in the treatment process. Biosolids can be in either liquid or solid form, depending on the treatment process, and they contain valuable organic matter, plant nutrients and biological activity.

N-Viro International has developed and patented a processing tool designed to decrease the time needed to dry the product as well as decreasing the footprint of the drying facility called Biodry.

Advantages of BioDry

Reduced site layout
Reduced drying time
Advanced process automation
Reduced alkaline admixture input
Biosolids volume reduction

BioDry accomplishes these goals by reducing drying time to 30 minutes and eliminating the need for windrows. The footprint of a facility can be cut by more than 50 percent in some cases by installing a BioDry rotary drum dryer. The biosolids are mixed with the alkaline admixtures (AA) and then fed directly into the dryer. Varying amounts of product can be handled by different size dryers based on feed speed and percent solids coming out of the mixer.


Sarnia, Ontario


An application of this process was at a municipal biosolids management facility in Sarnia, Ontario, that treats 120 wet tons per day. In March of 2001, the town of Sarnia began operation of the N-Viro Soil processing facility that incorporates the patented BioDry™ biosolids treatment process. Webster Environmental designed the processing facility to use a Duske rotary drum dryer, similar to one used by Leamington, Ontario. This equipment is part of the N-Viro Process used to dry alkaline treated biosolids for disinfection and stabilization.

The town of Sarnia has signed into an agreement with Lakeshore Soils to purchase all the N-Viro Soil made at the Sarnia facility for $7.50 CDN ($5 USD) per ton FOB the processing plant. Lakeshore Soils has acknowledged the value of the N-Viro Soil to the farmers near Sarnia. One benefit is that NVS has been proven to reduce the populations of the parasitic soybean cyst nematode (SCN), increasing its value to the end user. For More Info, You can check http://www.nviro.com