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Advanced aspects of thermal treatment of solid wastes: from a flue gas to a fuel gas technology?

Waste management (New York, N.Y.)·2012

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Design and Use of a Full Flow Sampling System (FFS) for the Quantification of Methane Emissions

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Gaseous emissions from waste combustion.

Joachim Werther¹

¹Hamburg University of Technology, Institute of Solids Process Engineering and Particle Technology, D 21071 Hamburg, Germany. Werther@tuhh.de

Journal of Hazardous Materials

|March 7, 2007

Summary

New technologies for waste combustion focus on reducing gaseous emissions and treatment costs. Innovations include combined flue gas treatment and waste conditioning for cleaner burning and improved co-combustion in power plants.

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Area of Science:

Environmental Engineering
Chemical Engineering
Energy Technology

Background:

European legislation (guideline 2000/76/EC) imposes strict limits on gaseous emissions from waste incineration and co-combustion.
Growing environmental concerns and evolving regulations necessitate advanced emission control technologies.
Traditional waste incineration involves complex flue gas treatment processes.

Purpose of the Study:

To provide an overview of current methods and emerging technologies for limiting gaseous emissions from waste combustion.
To highlight cost-reduction strategies in flue gas treatment and waste pre-conditioning.
To explore the benefits of waste co-combustion in coal-fired power plants.

Main Methods:

Review of state-of-the-art waste incinerator designs and specialized process steps.
Analysis of novel flue gas treatment systems combining multiple noxious substance removal.
Examination of waste conditioning techniques (pyrolysis, gasification, physical processing) prior to combustion.

Main Results:

Development of integrated flue gas treatment systems to reduce costs by treating multiple pollutants simultaneously.
Implementation of simpler, more cost-effective desulphurisation methods, reducing limestone consumption.
Waste conditioning produces a more homogenous fuel, leading to controlled combustion and lower emissions.
Co-combustion of waste in power plants shows potential for improved boiler operation and reduced gaseous emissions.

Conclusions:

Technological advancements are driving down the costs of flue gas treatment in waste combustion.
Waste conditioning and co-combustion offer promising avenues for efficient and cleaner energy generation from waste.
Further research and implementation of these technologies can lead to significant environmental and economic benefits.