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Water Hyacinth Project Turns Nuisance Plant into Potential Source of Biogas
Water hyacinth is considered the most productive plant on earth as it yields more than 200 tons of dry matter per hectare per year under normal conditions. On water containing high concentrations of sewage, it yields up to 657 tons of dry matter per hectare.

In Dianchi Lake in Kunming City, the provincial capital of China’s Yunnan Province, water hyacinth is considered a nuisance plant thanks to the lake's polluted water and the growth of the aquatic plant is one of the lake’s biggest problems.

Currently, there are several popular methods for preventing the spread of, or eradicating the water hyacinth: biological, chemical and physical control. A new study could add prove that this nuisance plant may be useful for biogas productions.

The study wanted to find out whether biogas is a cost-effective method to control the noxious weed, help clean up water pollution, and generate a source of renewable energy.


 
 


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Government Shut-Down Leads to Weed Infested Waters - Due to a government shut-down, many Minnesota Lakes are becoming infested with weeds resulting in the inability to use the waters for recreation. Permits to harvest invasive weeds, which are issued by the Minnesota Department of Natural Resources, have been suspended because no one from the state is available to oversee the work. Normally, three weed harvesters would be cutting milfoil on Lake Minnetonka and another would be cutting weeds on Lake Calhoun. All of which has been suspended.


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