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At the July 2021 meeting of the American Association of Plant Food Control Officials (AAPFCO; Arlington, Virginia), the organization recognized a new method to measure water-extractable phosphorus (WEP) for fertilizer products. The results from this method highlight the slower release of phosphate-phosphorus from biosolids-based (and other carbon-based) products. AAPFCO also determined that making labeling claims of slowly available phosphate for carbon-based products was allowable.
Get the guidance you'll need to prepare for complex upgrades for facilities of all sizes, including how to evaluate engineering proposals, detailed construction and startup requirements and critical information for both water and wastewater facilities. Order your copy of Planning, Design, and Implementation for New and Upgraded Water Resource Recovery Facilities, 2nd edition (MOP 28) today!
Envision is a guide for optimizing resiliency and sustainability in the design, construction and delivery of infrastructure. Envision sets the standard for sustainable infrastructure and is a growing paradigm. It provides continuity for stakeholder communications and encourages enhanced project performance by providing means to quantify sustainable practices with standardized, nationally recognized metrics, incorporate sustainability and resiliency philosophies into infrastructure projects, quantify soft benefits of sustainable and resilient infrastructure, strengthen interdepartmental and interagency cooperation and improve infrastructure integration . This fact sheet introduces Envision, illustrates its use through four wastewater utility case studies, and provides an overview of the Envision process.