Content tagged "nutrient recovery"

EPA’s Nutrient Recycling Challenge

Animal Manure Management Updated: May 11, 2017

Come to this session to learn about the Nutrient Recycling Challenge and meet some of the involved partners and experts, as well as some innovators who are...

Recovery of Ammonia and Production of High-Grade Phosphates from Digester Effluents

Animal Manure Management Updated: May 10, 2017

 Conservation and recovery of nitrogen and phosphorus from animal wastes and municipal effluents are important because of economic and environmental reasons....

Phosphorus Recovery from Anaerobic Swine Lagoon Sludge Using the Quick Wash Process

Animal Manure Management Updated: May 10, 2017

Long term and significant accumulation of sludge in anaerobic swine lagoons reduces its storage volume and ability to treat waste. Usually, excess...

Recovery of Proteins and Phosphorus from Manure

Animal Manure Management Updated: April 17, 2017

The recovery of phosphorus and proteins from manure could be advantageous to both offset costs and to improve and lessen the environmental impacts of manure...

Spotlight on Manure Management in North Carolina and the Atlantic Coastal Plains

Animal Manure Management Updated: March 21, 2017

To provide information about commonly-found manure management systems and approaches in North Carolina and the Coastal Plains, and discuss opportunities for...

Results of Nutrient Recovery System Installed on Large Scale Dairy Operation After 2-years of Operation

Animal Manure Management Updated: March 21, 2017

For centuries, farmers have disposed of manure by simply spreading it on the land. It is a natural fertilizer. Today, that practice is no longer considered...

Improved Recovery of Ammonia From Swine Manure Using Gas-Permeable Membrane Technology and Aeration

Animal Manure Management Updated: May 15, 2015

Significant efforts are required to abate NH3 emissions from livestock operations. In addition, the costs of fertilizers have rapidly increased in recent...

Poultry Digestion - Emerging Farm-Based Opportunity

Animal Manure Management Updated: April 29, 2015

While EPA AGSTAR has long supported the adoption of anaerobic digestion on dairies and swine farms, they have not historically focused on the use of...

The Dairy Manure Biorefinery

Animal Manure Management Updated: March 24, 2015

Some dairy farms have experimented with “add-on” technologies to enhance the value of the products generated from anaerobic digesters to improve economics...

Development of Pilot Modules for Recovering Gaseous Ammonia from Poultry Manure

Animal Manure Management Updated: March 18, 2015

There is major interest from producers and the public in implementing best control technologies that would abate ammonia (NH3) emissions from confined...

Economic Recovery of Nitrogen and Phosphorus from Anaerobic Digestate as Concentrated Ammonium Hydroxide and Hydroxyapatite

Animal Manure Management Updated: March 18, 2015

The  paper describes the laboratory and pilot studies of an autotrophic fixed film reactor, the rotating photo-bioreactor (RPB), that reclaims concentrated...

Nutrient Recovery Technologies—A Primer on Available and Emerging Nitrogen, Phosphorus, and Salt Recovery Approaches, their Performance and Cost

Animal Manure Management Updated: March 17, 2015

This presentation highlights existing and emerging recovery technologies that can be combined with energy recovery from dairy manure. A variety of...

Thermal-Chemical Conversion of Animal Manures - Another Tool for the Toolbox

Animal Manure Management Updated: March 17, 2015

Livestock operations continue to expand and concentrate in certain parts of the country. This has created regional “hot spot” areas in which excess...

Ammonia Recovery from Livestock Wastewater with Gas Permeable Membranes

Animal Manure Management Updated: November 18, 2013

Waste to Worth home | More proceedings....This presentation shows a novel system that uses gas-permeable membranes to capture and recover ammonia from liquid...

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.