An innovative membrane photobioreactor amended by adsorbent for enhanced nutrient recycling during from wastewater during algal biomass production

Yan Zhoua, Lance Schideman, Xin Zhao

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

Abstract

A hybrid process which incorporates adsorbents into membrane photobioreactor was developed in order to enhance recalcitrant compound removal from post-hydrothermal liquefaction wastewater. Preliminary results showed that the addition of granular activated (GAC) resulted in 90% COD and 60% nutrient removal compared to around 70% COD and 40% removal without activated carbon. There was still about 10% residual organics that were recalcitrant and non-absorbable by activated carbon. The addition of GAC also showed significant impact on the nitrogen behavior; the organic nitrogen and ammonia removal was greatly enhanced by the addition of GAC. Before the addition of GAC, organic nitrogen and ammonia were the majority of total dissolved nitrogen (TDN) in the effluent, but after GAC addition, nitrate was almost the only form of nitrogen in the effluent.

Original languageEnglish (US)
Title of host publication86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013
PublisherWater Environment Federation
Pages2046-2054
Number of pages9
ISBN (Electronic)9781510870444
StatePublished - 2013
Event86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013 - Chicago, United States
Duration: Oct 5 2013Oct 9 2013

Publication series

Name86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013
Volume4

Conference

Conference86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013
CountryUnited States
CityChicago
Period10/5/1310/9/13

Keywords

  • Adsorption
  • Algal biofuel
  • Hydrothermal liquefaction
  • Nutrient recycle
  • Wastewater treatment

ASJC Scopus subject areas

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

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