YSP 2009 Research Assignment

Advanced IFAS-EBPR Process - Monitoring of performance and population analysis
Principal Investigator
April Gu
Assistant Professor
Civil and Environmental Engineering
 
Research Abstract
Recently, there has been increasing demand to achieve very low effluent total phosphorus and total nitrogen due to more stringent discharge limits imposed on wastewater treatment plants in US. Biological nutrient removal (BNR) process is still the most commonly applied technology for removing nitrogen and phosphorus from municipal wastewater.

The overall objective of the proposed research is to investigate the feasibility, and efficiency of using an IFAS (Integrated Fixed Film Activated Sludge) system for nutrient removal in wastewater treatment. The specific aims include:
  1. Evaluate the phosphorus removal capacity of the system conducting P up-take and release test with both the fixed-film media and the suspended activated sludge from a lab-scale IFAS-BNR plant;

  2. Identify and quantify the PAOs populations and their distribution on the fixed-film (media) and in the suspended activated sludge using molecular techniques such as fluorescent in situ hybridization (FISH).

Research Activities/
Experience

The students will be able to learn how a wastewater treatment plant work, they will be able to learn about nutrients and C cycles in nature and in wastewater system. They will also get familiar with parameters that affects removal efficiency in full scale application. They will learn how to prepare solution and determine the nutrient requirement for living cells.

They will familiarize with techniques used to identify and quantify microrganisms present in the systems, like the use of staining and molecular tecniques.

Helpful skills or interests
Interests in environmental Engineering and Biology, as well as hands on experience on running biological reactor and variuos molecular tecniques. Experiences with microscope
and chemistry lab is a plus.
Suggested literature to review prior to program

www.coe.neu.edu/~clee; Joel L. Swerdlow, Nature's Rx, National Geographic Magazine,
April 2000

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