Anaerobic Treatment of Mine Wastewater for the Removal of Selenate and Its Co-Contaminants

ISBN-13: 9781138328419 / Angielski / Miękka / 2018 / 20 str.

Lea Chua Tan

Opis

Selenate removal from wastewater with co-contaminants have not been properly investigated in biological process systems using mixed consortia. This research addressed the effect of wastewater characteristics (co-contaminants and pH) on the biological reduction of selenate. It was demonstrated that the presence of co-contaminants was beneficial for selenium removal provided careful monitoring of concentrations and appropriate treatment, operation and configurations are used. This research provides insight for the advancement of biological treatment of selenium-laden wastewater such as predicting of reactor performance, solving practical problems and implementing novel treatment techniques.

Spis treści

1. General Introduction
2. Literature review
3. Effect of elevated nitrate and sulfate concentrations on selenate removal
4. Selenate removal in biofilm systems
5. Selenate removal with co-electron acceptors at low pH
6. Comparison of UASB and BTF for the removal of selenate, sulfate and nickel
7. Amberlite^® IRA-900 ion exchange resin for sorption of selenate and sulfate
8. Process integration of IX and UASB reactor for selenate and sulfate removal
9. General discussion and future perspective

O autorze

Lea Chua Tan was born in 1987 in Manila, Philippines. She obtained her bachelor in science (BSc) in Chemical Engineering from De La Salle University - Manila, and earned her Chemical Engineering License in 2009. Lea worked in the industry until 2012 as a Wastewater Engineer Supervisor at Ibiden Philippines Inc., as a Field Service Coordinator at Emerson Electric Asia Ltd. Rosemount Analytical Division and as a Research Assistant at the Center for Sustainable Development (CeSDR) in De La Salle University - Manila. She earned her master in science (MSc) degree in Environmental Engineering from Hokkaido University in 2014, where she worked on the biological-based response evaluation of different reclamation systems using a combination of conventional bioassay and transcriptome-based analysis as test battery. Lea started a PhD Fellow at UNESCO-IHE, Delft, the Netherlands in 2014, focussing on understanding the biological anaerobic treatment process for mine wastewater for the removal of selenate and its co-contaminants. She successfully earned her PhD on the 18^th December 2017, and is currently working as a post-doctoral researcher at National University of Ireland, Galway focusing on anaerobic digestion.