JP2004093042A5

JP2004093042A5 -

Info

Publication number: JP2004093042A5
Application number: JP2002256334A
Authority: JP
Filing date: 2002-09-02
Publication date: 2005-06-02

Description

【０００２】
【従来の技術】ため池、公園池、湖沼等においては、水面と池底の水温差により水が常に流動
しているが、冬季停滞期と夏季停滞期があり、表層部と池底部との池水の上下動
がなくなる。特に、夏場には池底部に滞留した水は嫌気性となり腐敗をもたらす
。従来、ため池等の原水の直接浄化、水質保全の技術は各種実施されており、水
中撹拌や曝気撹拌により水流を循環させ、嫌気性を改善する装置はよく知られて
いる。そして、地上に搬送可能なポンプ浄化機構を設け、吸込ポンプの吸込管と
吐出ポンプの吐出管を湖沼等に開口した浄化装置も、例えば、実開平７−９４９
７号公報に記載してあるように公知である。また、フロートを設けた噴水曝気装
置と循環流を発生させる水中ミキサーを組合せ、池全体を循環流により曝気させ
る装置も、例えば、特公平４−３３５２０号公報に記載してあるように公知であ
る。 [0002]
[Prior Art] In reservoirs, park ponds, lakes, etc., water always flows due to the temperature difference between the water surface and the bottom of the pond, but there is a winter stagnation period and a summer stagnation period. There is no up and down movement of Especially in the summer, water accumulated at the bottom of the pond becomes anaerobic and causes rot. Conventionally, various techniques for direct purification of raw water such as ponds and water quality preservation have been implemented, and apparatuses for circulating an aqueous stream by agitating in water and aeration agitation and improving anaerobic are well known. And the pump purification mechanism which can be conveyed on the ground is provided, and the purification device which opened the suction pipe of a suction pump and the discharge pipe of a discharge pump to a lake etc. is also, for example, Japanese Utility Model Application 7-949.
It is known as described in JP-A-7. In addition, as disclosed in, for example, Japanese Examined Patent Publication No. 4-33520, a device is also known in which a fountain aeration apparatus provided with a float and a submersible mixer for generating a circulating flow are combined to aerate the whole pond by a circulating flow. .