Toyota Motor Corporation (TMC) announced the a deodorizer designed specifically to be used on composting swine manure. Toyota Roof Garden Co., Ltd., a TMC subsidiary, is manufacturing and distributing the product for its "resQ45" series of manure composting systems.

In the development process, TMC collected compost samples from around Japan and carefully selected microbes with the strongest deodorizing effects, thereby creating a deodorizer with microbes(1) that effectively breakdown malodorous components such as ammonia as well as butyric acid, propionic acid and other short-chain fatty acids - the sources of the offensive odor unique to swine manure - reducing them by up to 90%(2). The deodorizer can also break down organic materials such as plant fibers that are slow to degrade, thus hastening the composting process.

In Japan, livestock generates about 90 million tons of manure annually, of which about 20 million tons is swine manure. Composting swine manure creates odors that can have a negative impact on residential areas, thus making the reduction of such odors unique to swine manure an important task.

Besides generating offensive odors, livestock manure can contaminate water supplies and exacerbate global warming, making it essential for livestock farmers to effectively use and appropriately process manure. To aid this process, in 2006 TMC and Aichi-Prefecture-based Menicon Co., Ltd. jointly developed and launched resQ45, which reduces the composting period from 90 days or more to about 45 days(3) and reduces environmental impact.

The newly developed deodorizer will be sold in 9.5 kg (21 lb) bags with a recommended retail price of 5,500 yen (US$68.51) per bag. One bag is  appropriate for roughly 33 ft3 of manure.

TMC projects sales in Japan to reach 3,000 bags in fiscal 2011 and has set annual sales targets of 50,000 bags to be attained by fiscal 2015.

According to TMC, benefits of resQ45 include

  • Composting times drastically reduced to approximately 45 days from 90 to 180 days
  • Ammonia (NH3), a source of offensive odors, substantially reduced by 90%
  • Greenhouse gases (nitrous oxide (N2O) and methane (CH4) substantially reduced (N2O reduced by 90%; no CH4 detected (detection limit: 5ppm or less))
  • Compost contains 90% less nitrate-nitrogen, greatly reducing effect on water quality
  • Results in high-quality compost with 100- to 1,000-fold increase in actinomycetes

For more information…

Source: Toyota Motor Corporation