847.202.0418  |  info@lmawma.org

847.202.0418  |  info@lmawma.org

Resource Recovery in the Wastewater Sector: Crystal Green, Algae, and EQ Compost

Dominic Brose, PhD, Senior Environmental Research Scientist for the Metropolitan Water Reclamation District of Greater Chicago, presented on Resource Recovery in the Wastewater Sector: Crystal Green, Algae, and EQ Compost (exceptional quality) at the AWMA-LMS Waste Conference on May 14, 2019. He referenced the MWRD’s history as being founded to reverse the Chicago River in the 1800s to protect Chicago’s drinking water, and from there building seven water reclamation plants throughout the 1900s across Cook County to treat wastewater before being discharged to local waterways. The wastewater industry, however, has moved from just treating the waste quickly to a new model of the utility of the future. The wastewater industry is moving towards capturing resources from the wastewater in the form of clean water for reuse, nutrients, and energy. Dr. Brose described MWRD’s public-private partnership with Ostara Nutrient Recovery Technologies, Inc. to produce Crystal Green, which is a fertilizer produced by capturing phosphorous from a solids side-stream contained in waste water. The product is being produced at MWRD’s Stickney, Illinois plant and is sold to farmers in the Midwest. Since becoming operational in 2016, the facility has removed millions of pounds of phosphorus from solids concentrated in nutrients.

The MWRD is piloting another nutrient removal technology for a solids side-stream process at their O’Brien Plant, located in Skokie, Illinois, that intentionally grows large amounts of algaDominic Brose, PhD, Senior Environmental Research Scientist for the Metropolitan Water Reclamation District of Greater Chicago, presented on Resource Recovery in the Wastewater Sector: Crystal Green, Algae, and EQ Compost (exceptional quality) at the AWMA-LMS Waste Conference on May 14, 2019. He referenced the MWRD’s history as being founded to reverse the Chicago River in the 1800s to protect Chicago’s drinking water, and from there building seven water reclamation plants throughout the 1900s across Cook County to treat wastewater before being discharged to local waterways. The wastewater industry, however, has moved from just treating the waste quickly to a new model of the utility of the future. The wastewater industry is moving towards capturing resources from the wastewater in the form of clean water for reuse, nutrients, and energy. Dr. Brose described MWRD’s public-private partnership with Ostara Nutrient Recovery Technologies, Inc. to produce Crystal Green, which is a fertilizer produced by capturing phosphorous from a solids side-stream contained in waste water. The product is being produced at MWRD’s Stickney, Illinois plant and is sold to farmers in the Midwest. Since becoming operational in 2016, the facility has removed millions of pounds of phosphorus from solids concentrated in nutrients.

Lastly, Dr. Brose presented on the MWRD’s EQ Compost program, which provides exceptional quality composted biosolids at no charge to the public. The compost is produced by blending woodchips with biosolids, and turning with a windrow turner to aerate the piles every few days, which can generate temperatures up to 130 degrees Fahrenheit. He noted these high temperatures are important for pathogen reduction needed to make the compost safe for distribution to the general public. For the first time in 2019, the MWRD is bagging the compost for distribution every Wednesday at their plants and more information is on their website: compost.mwrd.org.

Provided by Dominic Brose, PhD, Metropolitan Water Reclamation District of Greater Chicago

 

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