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The Purpose of Anaerobic Digestion in MSW Treatment

The main purpose for Anaerobic Digestion in MSW Treatment has previously been to reduce the bulk (or “mass”) of the material. The new generation of MSW anaerobic digesters are being promoted with the additional benefits of:-

• Biogas biofuel production; which can be burnt for electricity production etc
• Sanitisation; due the AD Process’ ability to operate at raised temperatures (usually using the biogas produced by the process) during the reaction, to ensure compliance with Animal By-Product Regulations (ABPR)
• Producing a digestate comprising a fibrous material, which can be spread on land, co-disposed with compost, or incinerated, and a liquor which (with care) can be used as a liquid fertiliser, but often must be further treated.

The popularity of anaerobic digestion is likely to rise as the demand for biofuel produced to replace fossil fuels increases with rising public awareness of the dangers of climate change. (See “Food for Thought”, below.)

Article About Gas Production and Explosion Safety

Food for Thought:

CIVIL ENGINEERS must take personal responsibility for tackling climate change, ICE president Quentin Lieper said last week (March 2007).

Speaking to 400 members at the annual ICE West Midlands dinner in Birmingham, Lieper challenged them to reduce energy consumption in their own offices as well as on projects and to cut travel.

Lieper urged every one of the Institution's members to perform a single action every day to improve the performance of the built environment in general and their own immediate environment in particular.

"Climate change is the biggest global issue we are facing," Lieper said. "The government wants to cut carbon emissions by 60% by 2050. But they can't do it by themselves. "As engineers we have a part to play not only in design, but also in our own business operations."

He called on engineers to make the effort to understand why it is important to promote sustainability, to enthuse their teams, provide simple guidance, show leadership, and demonstrate and celebrate successes in achieving sustainability.
Leiper added that there were clear business benefits to cutting energy consumption.

WebMaster: And: He could have said "promote sustainable technologies like Anaerobic Digestion"!? 

check out the Energy from Waste swicki at eurekster.com