Effect of microwave temperature, intensity and moisture content on solubilisation of organic fraction of municipal solid waste
by Haleh Shahriari, Mostafa Warith, Kevin J. Kennedy
International Journal of Environmental Technology and Management (IJETM), Vol. 14, No. 1/2/3/4, 2011

Abstract: High temperature and pressure microwave (MW) pre-treatment of the Organic Fraction of Municipal Solid Waste (OFMSW) enhanced solubilisation prior to Anaerobic Digestion (AD). Three temperatures (175°C, 145°C and 115°C), three MW intensities based on temperature ramp times (20, 40 and 60 minutes) and two Supplemental Water Additions (SWA) of 20% and 30% were evaluated. MW irradiation resulted in higher concentrations of soluble Chemical Oxygen Demand (sCOD), proteins and sugars in the supernatant phase. The highest level of solubilisation was achieved at 175°C and SWA of 30% and resulted in 1.61, 1.62 and 1.58 times higher sCOD concentrations versus controls for MW intensity ramp times of 20, 40, and 60 minutes, respectively. Additionally, for the same conditions, the free liquid volume released from the OFMSW into the supernatant were observed to be 1.39, 1.34 and 1.37 times greater than the control, respectively. Concomitantly, potentially bio-available sCOD available for AD increased more than two fold compared to control.

Online publication date: Thu, 29-Jan-2015

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Environmental Technology and Management (IJETM):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?


Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com