JPS6214991A - Apparatus for electrolytic treatment of water - Google Patents

Abstract

PURPOSE:To enhance adsorbing effect, by providing an introducing chamber and a lead-out chamber to the inlet side and outlet side of a treatment chamber packed with an adsorbing material and providing electrodes to the introducing chamber and the lead-out chamber and applying DC voltage between the electrodes. CONSTITUTION:An introducing chamber 3 having an introducing port 2 is provided to one end of an apparatus main body 1 and a lead-out chamber 5 having a lead-out port 4 is provided to the other end thereof. A treatment chamber 6 packed with a conductive adsorbing material such as activated carbon is mounted to the intermediate part of said main body 1 and electrodes 8, 9 are arranged to the introducing chamber 3 and the lead-out chamber 5 while DC voltage is applied between both electrodes 8, 9. When water passes through the treatment chamber 6, the adsorbing material develops electrical adsorbing property by potential inclination based on DC voltage between the electrodes 8, 9. By this method, adsorbing effect is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electrolytic treatment device for water mainly used for drinking water.

(Prior Art) As this type of water treatment device, a water purifier using an adsorbent such as activated carbon, and a water electrolysis device using electrolysis and electroosmosis are known.

Recently, rivers have become extremely polluted and the amount of harmful organic substances contained in tap water has reached a considerable level, so water is being repurified using water purifiers at end-use locations such as homes. As is well known, methods using adsorbents such as activated carbon take advantage of the physical adsorption properties of the adsorbent to remove limescale and other harmful organic matter, especially ammonia nitrogen, which is the residue of fertilizers. Although it is intended to remove nitrate nitrogen, etc., it has the disadvantage that the adsorption effect is low, the adsorption capacity decreases rapidly, and it cannot withstand long-term use.

Therefore, the electrolytic chambers are made to face each other with an electrically permeable partition member (unglazed partition wall, electrically permeable membrane such as a microfilter, etc.) in between to allow water to flow through each electrolytic chamber, and one electrode installed in each electrolytic chamber. Water electrolyzers that apply a DC voltage between them to cause water electrolysis and electroosmosis are in the spotlight. In this method, anions obtained by electrolysis, such as Ct-1SOv-, gather on the anode chamber side and combine with the remaining hydrogen ions to form a compound, leaving behind acidic water in the water. At the same time, on the cathode chamber side,
Cations obtained by electrolysis, e.g. Ca+SN
A+, K0, etc. gather and combine with the remaining hydroxyl ions to form a compound, which remains in water and forms alkaline ionized water. This alkaline ionized water is used for drinking, and the acidic water is used for other purposes such as bathing.

However, recently, harmful substances do not necessarily collect only in acidic water, and there has been an increase in the amount of raw water that contains high amounts of metals with cations such as manganese. For this reason, it is no longer possible to obtain alkaline ionized water suitable for drinking by simply applying electrolysis and electroosmosis. In addition, there is a need to remove harmful substances contained in acidic water systems and expand the purposes for which they can be used.

For this purpose, it has been considered to separate water (separation of alkaline ionized water and acidic water) by electrolysis and electroosmosis, and then apply physical adsorption to each of them using activated carbon, etc. As mentioned above, it has problems such as low adsorption capacity and lack of sustainability.

(Problems to be Solved by the Invention) The present invention has been made based on the above-mentioned circumstances. It is an object of the present invention to provide a water electrolytic treatment device that exhibits electrical adsorptive properties, improves the adsorption effect, and achieves an effective and sustainable purification effect.

(Means for Solving the Problems) For this purpose, the present invention provides an introduction chamber and a discharge chamber on the inlet side and outlet side of a processing chamber filled with adsorbent, respectively, and The device is characterized in that it is configured such that electrodes are provided and a DC voltage is applied between both electrodes.

(Example) Hereinafter, an example of the present invention will be specifically described with reference to the drawings. In the figure, reference numeral l denotes the main body of the device, which is provided with an inlet chamber 3 having an inlet 2 at one end, and an outlet chamber 5 having an outlet 4 at the other end, with activated carbon etc. There is a processing chamber 6 filled with conductive adsorbent. The processing chamber 6 has filters 7 and q at the entrance and exit, and in the middle.
', 7' are provided to prevent the adsorbent from flowing out and to separate the adsorbent into two layers. In addition, each introduction room 3
, electrodes 8.9 are arranged in the derivation chamber 5, and for example, a positive voltage is applied to the electrode 8 and a negative voltage is applied to the electrode 9.
A DC voltage is applied between both electrodes 8 and 9.

Note that the filters 7.7 (τ) are each held by a filter support member 1O11O!1O'' such as a perforated plate.

In such a configuration, when water passes through the processing chamber 6, the adsorbent exhibits electrical adsorptivity due to the potential gradient based on the DC voltage between the electrodes 8 and 9.

Moreover, since the water itself undergoes electrolysis and ionizes harmful substances, it is electrically adsorbed to the surface of the adsorbent, and is also held and fixed by the adsorbent's inherent physical adsorption properties. Therefore, unlike conventional water purifiers, effective removal of harmful substances can be achieved. In addition, the sustainability of the adsorption ability can be significantly improved due to the continuation of the electrical adsorptive property.

For example, in this example, the lower adsorbent maintains a potential gradient biased toward the positive side, so it exhibits adsorption performance such as Ct-1SOv, and the upper absorbent maintains a potential gradient biased toward the negative side, so Demonstrates adsorption performance for Mn+, Ag+, etc.

In the embodiment shown in FIG. 2, electropermeable partition members (such as bisque partitions, microfilters, etc. 11, 11' is inserted.

In addition to activated carbon, other adsorbents such as zeolite may be used as the adsorbent, and maifan stone or the like may be mixed in order to replenish mineral components.

In addition, the positive electrode contains ingredients such as Cu and Zn in drinking water.
An effective metal may be used as a trace component and slightly eluted during electrolysis.

(Effects of the Invention) As described in detail above, the present invention provides an adsorbent with a potential gradient by applying a DC voltage to exhibit electrical adsorptive properties, and causes an electrolytic effect on water flowing through the adsorbent. Since it is ionized and increases the adsorption effect, it exhibits a high adsorption property not found in conventional water purifiers, and its sustainability can be significantly improved.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal side view showing one embodiment of the present invention, and FIG. 2 is a longitudinal side view of another embodiment.

Claims (1)

[Claims] An introduction chamber and an extraction chamber are provided on the inlet and outlet sides of the processing chamber filled with the adsorbent, electrodes are provided in each introduction chamber and the extraction chamber, and a DC voltage is applied between the two electrodes. A water electrolytic treatment device featuring: