JP2006150331A - Porous concrete box for biological river water purification - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for biological river water purification capable of actively utilizing microorganisms regarded as effective in the purification, of easily exchanging an adsorbent in a porous concrete box for a new one at any time when the adsorbent has deteriorated, and of exterminating a harmful insect. <P>SOLUTION: The porous concrete box has some openings in each of its surfaces so that a material for environmental purification packed in a mesh bag for preventing the adsorbent from escaping can be charged into or discharged from the concrete box selectively through the openings in the top surface at any time. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a method for installing a water purification system for rivers using porous concrete and environmental purification materials, and a method for using the same.

Conventional environmental purification systems using porous materials include, for example, a method for adsorbing and removing pollutants using porous materials as described in Patent Document 1, or a void portion of porous materials as described in Patent Document 2. It is known that a pollutant purifier containing a microorganism group as a main component is contained.

      Patent Publication 10-101449       Patent Publication 2004-136243

However, in the technique in Patent Document 1, it takes time for the indigenous microorganisms to settle and proliferate on the porous material, and it takes time for the purification effect to appear after installation. In addition, the adsorption capacity of the porous material is limited, and when a certain amount of time elapses after installation, the ability to remove pollutants decreases due to clogging of the voids, and the installation itself needs to be cleaned or replaced.

In the technique disclosed in Patent Document 2, there is a description that a microorganism group is artificially added and a purification effect can be obtained immediately after the installation. However, the artificially added microorganism group in the natural environment is continuously present at the contamination site. There is almost no dominant species. For this reason, the situation where the purification effect is not sustained may occur.

Therefore, the present invention provides a purification system capable of taking out and replacing one and / or a plurality of pollutant adsorbents and / or pollutant purifying agents mainly composed of microorganisms (hereinafter simply referred to as pollutant purifying agents). provide.

The river water purification system of the present invention has a box-like form made of porous concrete having an opening on each side surface, and contains a pollutant adsorbent and / or a pollutant purifier.

Further, the pollutant adsorbent and / or the pollutant purifier is stored in the outflow prevention net and can be taken in and out as needed from the upper part of the box-shaped porous concrete.

As the pollutant adsorbent, for example, activated carbon, molten slag obtained by recycling sewage sludge, zeolite, or the like is used, and the pollutant purifier is liquid or jelly-like. In the case of a liquid contaminant purifier, it is supported on porous concrete or the like.

The box-shaped porous concrete containing the pollutant adsorbent and / or pollutant purifier is installed in the river water vertically and / or parallel to the flow in one and / or multiple stages to purify the polluted water.

In the above technology, the necessary contaminant adsorbent and / or contaminant purifier can be used as appropriate, and the installation method of the box-shaped porous concrete can be changed according to the degree of contamination to cope with a wide range of contamination situations. It has the characteristics that can be.

FIG. 1 is a perspective view of the present invention. Box-shaped porous concrete is arranged in 1 upstream part and 2 downstream part so as to cross the river, and 5 water purification agent and / or pollutant purification agent filled in 4 outflow prevention net shown in FIG. It is inserted from the 7 environmental purification material filling port shown in (a).

The distance between one upstream part and two downstream parts of the box-shaped porous concrete arranged so as to cross the river should take a sufficient distance in consideration of the river pollution situation, average flow velocity, etc., one upstream part of the box-shaped porous concrete, Lay down 3 ecological support recycling simulated stones between 2 downstream parts.

By passing the polluted river water through the six water openings shown in FIG. 3 opened in the box-shaped porous concrete, the pollutant is adsorbed and / or contacted with the five water purification agent and / or the pollutant purification agent. Or decomposition is performed.

1 After passing through the upstream box-shaped porous concrete, the river water is in contact with 3 ecosystem-supported recycled simulated stones, while the pollutants are further adsorbed and / or decomposed, and 6 Flows to water opening.

2 River water that has flowed into the box-shaped porous concrete in the downstream part comes into contact with the filled 5 water purification agent and / or pollutant purification agent, and further adsorbs and / or decomposes pollutants, thereby purifying the polluted river water. Done.

The conventional river purification technology was an out-of-band technology that only waits for the natural purification ability to be promoted after installation, but the present invention actively changes the adopted materials according to the pollution situation even after installation. This makes it possible to clean up the river more quickly and appropriately.

The invention's effect

According to the present invention, the following effects can be obtained.

Filling and / or replacing the pollutant adsorbent and / or pollutant purifier according to the pollution situation by making the upper part of the box-shaped porous concrete containing the pollutant adsorbent and / or pollutant purifier clean. Is possible at any time.

By making it possible to fill and / or replace the pollutant adsorbent and / or pollutant purifying agent according to the pollution situation at any time, the cost for installation and operation can be reduced.

By allowing the pollutant adsorbent to be filled and / or exchanged as needed, cleaning and regeneration are simplified, and the adsorption capacity is maintained and continuous purification is possible.

By allowing the pollutant cleaning agent to be filled and / or exchanged at any time, it is possible to add and / or replenish microorganisms according to the situation. It is possible to maintain the ability of the cleaning agent and to perform continuous cleaning.

Box-shaped porous concrete has a large opening on each side, thereby reducing the weight and reducing the burden during transportation.

  1 is an overall perspective view of the present invention.   1 is a front view of an outflow prevention net and a water purification agent / pollutant purification agent according to the present invention.   (A) is a perspective view of the box-shaped porous concrete block concerning this invention. (B) is a box-shaped porous concrete block perspective view of a water purification agent and / or a contaminant purification agent.

Explanation of symbols

1. 1. Upstream part 2. Downstream part Ecosystem support recycling simulated stone 4. Outflow prevention net 5. 5. Water purification agent and / or pollutant purification agent 6. Water passage opening 7. Environmental purification material filling port Net containing water purification agent and / or pollutant purification agent

Claims (4)

  River purification system using porous concrete blocks with openings on each side.   River purification system using purification materials stored in a spill prevention net.   A river purification system in which the purification material according to claim 2 can be taken in and out freely from the upper surface of the concrete block according to claim 1.   A river purification system by installing the concrete blocks according to claim 1 in one and / or multiple stages so as to cross and / or parallel to the river flow.

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