JPS60234989A - Electrodeposition cell of waste liquid containing metallic ion - Google Patents

Abstract

PURPOSE:To deposit and recover metals from waste liquid with excellent power efficiency by separating a cell with a partition wall into a cell provided with many electrodes and a cell wherein waste liquid is pumped up, and circulating waste liquid rapidly through both cells when metals dissolved in industrial waste liquid from plating, etc. are deposited and recovered. CONSTITUTION:Metals in waste liquid discharged from a plating factory, etc. and contg. metals are deposited in an electrodeposition cell to remove and recover the metals. In this case, the electrodeposition cell 1 is separated with a partition wall 2 into a pumped cell 4 and a cell 6 provided with a group of electrodes. and both cells are communicated at the bottom part. A gas such as air is bubbled out from a diffuser pipe 3 for air lifting provided in the pumped cell 4, and waste liquid is sent upward by the bubbles and flown over the partition wall 2 into the cell 6 provided with a group of electrodes. A group of electrodes consisting of many anodes 5a and cathodes 5b are provided in the cell 6. Metallic ions in waste liquid are deposited on the reticular cathode 5n, dropped, and accumulated at the bottom of the electrodeposited cell 1 as electrodeposited metals 8. The circulation of waste liquid through both cells 4 and 6 is accelerated, and the dissolved metals are deposited and removed with high power efficiency.

Description

[Detailed description of the invention] [Industrial application field] The present invention can be applied to RR-produced lN lively water, especially Mekke Higashi-hai, etc.^1m1
Gold M (contained in degrees/), lead, nickel, chromium, etc.
on? f- Regarding electrolytic removal (hereinafter referred to as electrodeposition) [Prior art] Conventionally, the above-mentioned metal removal equipment and ll2I installed in waste discharged from plating factories, etc. Pure as a storage device ^
Ikin J! This method has been widely used for electrodeposition that can be recovered from I4 powder or metal vessels.

In order to economically dispose of the waste in a short time, it is necessary to arrange it in large numbers densely and to minimize the electric power efficiency.ゐThe electrodeposition enemy's redemption method τ has also been taken into account, and the method of setting the electrodeposition has been significantly devised. , 01 combustion of cumulative scum, $1 gas and 1 chlorine 1 organic during waste removal? We must also take into consideration the issue of ensuring human and aspirational safety against the corrosive chlorine gas% foul-smelling scum that is generated when 7. There were methods of stirring with a stirrer, a method of aOa ring using a bong 1, and a method of stirring with an aOa ring using a bong 1. 9 for the most salmon-like stirring method! It is said to be a one-shot stirring force type, which has the drawback that air bubbles rise between the electrodes, which increases the voltage between the electrodes and increases electricity costs. Ma7
c To process the dangerous and unpleasant generated gases, whether the electrolytic metal is suctioned in a nearly closed system using a 21-ton gas treatment r, or the equipment used for the treatment must be equipped with the necessary equipment to ensure explosion-proof and corrosion-resistant properties. A must-have friend〇 [Object of the invention] To provide an easy-to-understand method that can improve power efficiency and safety by improving the internal conditions of electrodeposition and the arrangement of electrode groups. purpose.

[Invention extraction]

The unexploded FiA was separated by connecting 19 tanks at the bottom to a bulkhead with an overflow bottle on the top end, and one tank was used as a pumping tank equipped with an aeration pipe for the air list for electrolytic deposition, etc. Electrode plates made of Japanese cypress are arranged vertically and perpendicularly to the overflow weir, and the pumped electrodeposition a flows between the electrode plates.
It is related to the electrodeposition of the gold maple ion-containing metal, which is imitated by the provision of a precipitated metal part in the lower part of the lower part.

The non-invention will be explained below based on the drawings. ◎I1 Figure a is a cross-sectional view of the hook part of the electrodeposited bond, and Figure 2 is the 0#4 oblique gravitational force in the horizontal direction.
The bottom part of the electrodeposition tube 1a is communicated with each other and separated by a partition wall 2 having an overflow weir at the top end. A diffuser tube 5 for air lift is provided to the fractionated tube to form a ycltiiX tank 4. Generally, when the air lint gas is 5% a-air, an inert gas is used.

Fractionation? As shown in FIG. 2, the electrode plate 5a for electrodeposition is placed directly on the cypress 77 and directly on the weir.

5BR multiple arrangement, electrode group arrangement 6 and 1 unit. That is, pumping water 4
Electricity pumped from water? Raa Koshikashi τ Overflow Den & Bond 6 [Extreme mrT! J * In parallel and evenly, the metal ions flowed down from the connecting part of the bulkhead 2 to the pumping water 4, and as the circulation was reversed, L metal ions were deposited into the electrodeposit. The metal is precipitated on the a and other parts 5b. At this time.

Add 1 plow water to the air and inhospitable gases used for pumping water.
The generated gas % - water tτ increases during electrodeposition without infiltrating between the electrode groups. However, since the water is scattered from the pumping water, the voltage resistance between the electrodes becomes slight, and the voltage resistance between the electrodes is also minimized, which leads to lower power costs. The number of times increases the power output, improves the clarification effect, increases the power efficiency, dissipates the generated gas, dilutes it, and pressure-feeds it to the gas processing equipment. However, since there is a theoretical limit to the increase in the number of circulating tgI, adding ``acidification infant τpII'' to the history is 01! In order to give even stronger agitation to the flow between the plates, it is desirable to use a perforated plate in the shape of wire mesh, bunching metal, or spanned metal. Cathode plate 5b Deposited on soil Gold maple-shaped fall, not foil-like but granular, 0411 Branch-like young fruit t%1, circulating electrodeposition aK
Lr) There is a precipitated metal pole on the deposited metal bottom S which easily peels off and settles from the plate, and there is a precipitated metal tip waiting for the tilted surface of the deposited metal. It is easy to understand that the 6th plan is as follows. It is practical to use the air lint pot Suito τ, as shown in Figure 4 of Yusako and Kayu, as shown in Fig. 4. In a rectangular trap, there are two internally installed electric cables, one at the bottom of the eaves, and two diffuser chambers in the direction of the group.

The following is a line cut based on the example of the τ implementation ν0 ratio plate for misfires.

[Example, specific softness]

Fig. 1 and Fig. 5 c/) Using the ridge temperature τ10
''-, then ``Kameryu Suzuki,'' ``Kameryu Matsuri 1 and Kandenji electrodeposition conditions τ all (same and the following -1 results τ including plating folding cloth - 2Q Tortoise nail red rod. Acid precipitation treatment τ Bamboo π rice polishing τ Figure 6, O shown in Cloth-3 10 U @ 76 and the time is 7C.

As shown in these results, Comparative Example A has a large confining effect due to the diffused air, so the voltage is also low, and the stirring effect is poor. The analysis is rather slow (compared to this), but the voltage is low and it is disastrous in the non-invention, and even when used in the comparative example, three times as much copper is deposited as in the comparative example, and even more disastrous is the punching metal Q) perforated machine. When the cathode τ is used, the result is 5 times better than the one used for this porous body.

Granular and l! The surface of his grudge was easily broken, and he groaned at Iku Somezou.

[Invention (1) Efficacy] As above, it is non-inventive and 0. Part of her dislike for electrodeposition was that she used the direct aeration method from the bottom of the woodcutter group, and the furnace was launched. , IL'Salmon water was placed vertically and in eight straight lines in the overflow tank, and the water was pumped up with two air tanks.
At Junkasa, many times.

Denzaiyama τ style, Suiri Sui, Ryuukiei and Kinnori Ion (
1) Since the contact is sufficiently strong, the individual leakage, dissipation, dissipation, and concentration that occur in the case of a child or a samurai that cannot be used in an air lift can be avoided with air or an inert gas. The samurai ol' 7t @ love is also porous '-pole and 'f, so between the seed pole τ flow ■, my ring Dingi Kame analysis enemy effect is the most human power in history. A trap to increase efficiency.

4. A quick explanation of the section.
II8I, Fig. 3 and Fig. 4 are defensive diagrams of applied examples.

The fifth factor is non-invention, comparative examples, positive aspects and negative aspects.

I'+T3q no arrangement 1 Keibo Wrath 2 Gangbang 6 Air Lint Enemy Qikan 4 Bosuijyo 5a Atake 1-Fujiki 5b ゛-Analysis Expanded Scars Buddha Group 6
7 Electrodeposition metal accumulation capital 8 'Dialysis S1 cormorant 9 Territory ring Arashi analysis 猷水韡LTO% foam

Claims (1)

[Scope of Claims] 1. Partition wall rcL having an overflow weir at the upper end part τ paper part τ
The electrode plates for electrodeposition are perpendicular to the overflow weir. ) are arranged vertically, and the brittle water is deposited between the electrode plates. RTD Kept C2 and τ Appetizer and Dingi Metal Ion-containing Abandoned Enemy Den? 1 trepidation. 2, 1 JL electrodeposition electrode 82 is a successor to the perforated plate containing metal ions.