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New Manure System Generates Interest in China

by 5m Editor
22 October 2010, at 11:37am

CANADA - The president of ATD Waste Systems expects construction of the first facility to utilize a new solid liquid manure separation system to be underway in China within the next six months or so, Bruce Cochrane writes.

Vancouver based ATD Waste Systems has spent the past 10 years developing a solid liquid manure separation system which breaks the manure into a solid stream which is used to produce a pelleted dry fertilizer and a liquid stream which can be recycled back to the animals as drinking water.

ATD president Victor Van Slyke says the process dramatically reduces odor, virtually eliminates greenhouse gases and reduces water use by 50 to 70 per cent.

Victor Van Slyke-ATD Waste Systems

From the barns we have two streams, a solid stream of the feces themselves and a urine stream.

They're kept separate.

After we've cleaned up the urine stream by eliminating the ammonia, the suspended solids and reducing the total dissolved solids as much as we can we have a clear liquid that we can irradiate with ultraviolet and at that point the clear water being returned to the pigs has about 13 parts per million of total dissolved solids.

That's about one eighth or even less than what you'd get in normal bottled water in Canada.

The feces themselves are just dried and then we take all of the by - products of cleaning up the liquids, add them to the feces where we dry them and pellet them.

There's no discharge to the land, there's no discharge to water.

Everything goes into the pellet or is returned in the water to the pigs.


Mr Van Slyke says ATD is involved in ongoing discussions with several firms in China.

He says it just a matter of who will be first to adopt the system and he expects to see construction of the first plant to begin within the next six months or so.