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Biomass Combustion Ash in the Removal of Micro-pollutants from Water

  • Full or part time
  • Application Deadline
    Applications accepted all year round
  • Self-Funded PhD Students Only
    Self-Funded PhD Students Only

Project Description

The UK is committed to reducing greenhouse gas (GHG) emissions by 80% compared to the 1990 emission levels by the year 2050. Negative emission technologies such as biomass combustion with carbon capture is vital to meet the Paris Agreement climate targets. However, similar to burning coal, this process is accompanied with an undesired by-product: fly ash. This by-product has found limited range of secondary applications e.g. cement/concrete manufacture, land reclamation, solid stabilisation, grouting and etc. Nevertheless, a significant portion of this residue is currently being directly landfilled with no further useful application; nearly 30% of fly ash is directly landfilled in the UK. The fly ash originating from the combustion of biomass fuels demonstrates different characteristics from that of coal. The elevated alkaline content in fly ash from biomass combustion, most notably sodium and potassium, tends to make these ashes undesirable for use in applications identified as beneficial use applications for conventional coal combustion fly ash. However, due to their inherently different properties, they have a great potential to be used as adsorbent. In this research, you would be investigating a range of characterisation (e.g. SEM/EDX, FTIR, BET, TGA) and surface modification (e.g. impregnation with amines and/or ionic liquids, acidic/basic surface modification) techniques to optimise raw biomass combustion fly ash for the adsorption of a range of (in)organic micro-pollutants from aqueous media. Based on the experimental results, you would then be simulating the actual adsorption/desorption process using appropriate simulation software such as Aspen Suite and/or gPROMS to investigate the impacts of operating conditions on the process efficiency in terms of removal efficiency, capital expenditures (CAPEX) and operating expenditures (OPEX) of the adsorption/desorption plant. This would result in an understanding of the industrial viability of such a process.

Funding Notes

Brunel offers a number of funding options to research students that help cover the cost of their tuition fees, contribute to living expenses or both. See more information here: View Website. Recently the UK Government made available the Doctoral Student Loans of up to £25,000 for UK and EU students and there is some funding available through the Research Councils. Many of our international students benefit from funding provided by their governments or employers. Brunel alumni enjoy tuition fee discounts of 15%.)

How good is research at Brunel University London in Aeronautical, Mechanical, Chemical and Manufacturing Engineering?

FTE Category A staff submitted: 63.27

Research output data provided by the Research Excellence Framework (REF)

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