Waste
 Technologies
 
"Toward Zero Waste"
Waste Disposal Without Landfill
 

HomeGet a Free QuoteLeave FeedbackFree Landfill eBooksWaste NewsList of Waste Management Companies
Waste Management Articles Resources News Contact Us Privacy
 

 

  Windrow Composting 

31 March 2011 
Written by: Steve Symes 
 
 Windrow composting is a way of generating compost by piling organic matter into extended rows or arc-like piles. The piles are turned over by large machinery to preserve even levels of heat, humidity, and oxygen content. Piles will usually range from four to eight feet tall and 14-16 feet in length.

Windrow composting is a way of generating compost by piling organic matter into extended rows or elongated pyramid-like piles. The piles are turned over by large machinery to preserve even levels of heat, humidity, and oxygen content. Piles will usually range from four to eight feet tall and 14-16 feet in length.
 
Windrow and static pile systems require a relatively large area, long composting periods, and significant ongoing staff time. Further, they can present nuisance issues which limit siting options.

 

 Windrow Composting for Commercial Composting facilities
Windrow composting


In windrow composting, ground-up garden refuse is formed into long, open-air piles. The piles are turned frequently to introduce oxygen into the pile, and ensure that adequate moisture is present throughout the pile.

Normally windrow systems take about 6 to 12 weeks to make finished compost. The pile is agitated at regular intervals of 1 to 3 times per week to introduce oxygen and water to enhance the composting process.
 
Windrow operations are attractive because of their simplicity, mobility, and relatively low up-front capital cost. However, windrows have a larger area requirement than some of the other methods, which may make this technology less attractive if land values are high.

"Windrow composting is a way of generating compost commercially by piling organic matter into extended rows or "piles". The piles are turned over by large machinery to preserve even levels of heat, humidity, and oxygen content. "

It is estimated that the unenclosed facilities (unenclosed ASP and windrow composting) will have a unit costs ranging from $38 to $435 per wet ton of biosolids processed. For enclosed composting (enclosed ASP or in-vessel) the cost would be in the range of $55 to $65 per wet ton.

Special vehicles are required to agitate the windrows periodically by turning them upside down, which introduces oxygen and facilitates aerobic decomposition in the windrow.

Odors and other emissions are likely to be a major consideration when evaluating potential environmental impacts of a composting operation, especially an open air windrow. Open-air composting alternatives (unenclosed ASP and windrow composting) have a larger element of risk.

 

Source: http://waste-technology.co.uk 

 

An Introduction to Waste Technologies cover image

Ebook available for IMMEDIATE Downloading:
"An Introduction to New Waste Technologies"; 

If you are working in this field or just want to know about the new waste treatment methods, this eBook is a MUST BUY!
Click here to find out more.

.


Enter your eMail address below to receive an email version of our Waste Management News.

It's free and you can unsubscribe at any time using the link provided in each email.


Powered by FeedBlitz
Subscribe and get your updates by email
 



 

Visit our other
Waste Technology Web Sites:-

UK Waste Technology

UK Commercial Waste Composting

Wikipedia

Bravenet Counter Stats
Powered by Bravenet
View Statistics