A proposed treatment train for sustainable energy and nutrient recovery from swine waste

Adib Amini, Veronica Aponte-Morales, Meng Wang, Merrill Dillbeck, Nathan Manser, Sarina Ergas, Qiong Zhang, Jeffrey Cunningham

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Concentrated animal feeding operations (CAFOs) have become more prevalent due to increased meat demand; however, large amounts of manure are produced that must be treated and disposed of. Anaerobic lagoons and land application are common CAFO disposal methods, but possess significant environmental disadvantages and have increasingly limited use due to heightened regulations. A sustainable process for energy and nutrient recovery from swine waste was proposed and evaluated in this project that uses anaerobic digestion for bioenergy production and solids stabilization, followed by precipitation of struvite and recovery of N by ion exchange onto natural zeolites. Results from bench scale experiments show high recovery efficiencies of N and P (more than 80-90%) as valuable fertilizer; however, the quality of the effluent limits water reuse options. Life cycle assessment shows that the system provides significant environmental and human health benefits while a life cycle cost analysis shows significant economic benefits from recovery.

Original languageEnglish (US)
Title of host publication87th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2014
PublisherWater Environment Federation
Pages6692-6700
Number of pages9
ISBN (Electronic)9781510870451
StatePublished - Oct 1 2014
Event87th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2014 - New Orleans, United States
Duration: Sep 27 2014Oct 1 2014

Publication series

Name87th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2014
Volume6

Conference

Conference87th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2014
CountryUnited States
CityNew Orleans
Period9/27/1410/1/14

All Science Journal Classification (ASJC) codes

  • Ecological Modeling
  • Environmental Chemistry
  • Pollution
  • Waste Management and Disposal
  • Water Science and Technology

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