| 摘要 |
An environmentally friendly filtration method without injection of chemicals is provided to enable aquatic plants or fishes to live in a pond, and minimize an installation area, an installation cost and a maintenance cost of the system by simply installing a pond water purifying system in an existing pond and making it not necessary to exchange a filter of the system. In a circulation type purification method for injecting the filtered water into the pond after sucking water of a pond and filtering the sucked water, a method for filtering water of a pond using aquatic plants is characterized in that: aquatic plants are planted into a mat pad(4) that is installed at the pond; an absorption case(5) is installed on a lower part of the mat pad having the aquatic plants planted therein in a state that a water passing hole is perforated into the absorption case; and water of the pond filtered by roots of the aquatic plants planted in the mat pad is sucked into a pump(7) at one side of a wet land by an absorption pipe(6) that is embedded in the absorption case to inject the sucked water into the pond through a water injection pipe(8) at the other side of the wetland. |
