Monday, 23 April 2012
The theme of the popular Western Cape Agricultural show this year was "Change for Sustainability" demonstrating the new willingness of the agricultural industry to embrace the low impact farming practices discerning consumers demand both in South Africa and abroad. Of course our biogas digesters had to be there to show farmers that they don't have to spend a fortune to turn their waste into a valuable resource.
The show which ran from Thursday 19 April to Saturday 21 April 2012 included exhibitions and programs focussing on renewable energy, organic farming and the marketing of organic produce in the Western Cape. We figured this was the perfect forum to display our digesters which are designed to recycle water creating natural, valuable fertiliser in the process and generating renewable energy in the form of biogas - a fuel every bit as useful and adaptable as the normal LP Gas you get in a Cadac gas cylinder.
“Sustainability” is the new buzzword in agriculture. It refers to the use of a resource in a manner that it provides continuously without being permanently damaged or over exploited. To be sustainable we can no longer simply take the waste generated in crop and meat production and dump it in landfill sites. Biogas digesters take animal manures and the organic waste that is left after harvesting and food processing and turns it into a useful gas and slurry that can be used for fertilising and improving soil quality. Waste water from cleaning and washing (grey water) can be used in the digester and the slurry that overflows used direct for irrigation. However, if sewage water (black water) is used then it needs to be further purified before it can be used on crops.
Wouter van Schalkwyk, the Sales Manager at 4EVR Plastics, the manufacturers of our small, household size biogas digesters, exhibited the BiogasPro at the show, together with the imported Fluido Waste Water Treatment systems.
“Farmers were excited to see that they could combine the 2 systems and create a waste management, energy generating system that also enabled them to safely recycle sewage water on their land” says Wouter
One of the pressing concerns of the agricultural industry in South Africa is the contamination of our rivers with human sewage. Farmers are among the first to appreciate that economical ways of safely processing waste sewage water are vital to guaranteeing the safety of the food they produce.