JPS58174287A - Neutralyzing device for waste alkali water - Google Patents

Abstract

PURPOSE:To improve the efficiency of neutralization reaction, by interposing a pH detector in a water discharge pipe, and constituting a feed forward control system and a feed back control system with said detector together with the valve provided in a feed pipe for carbon dioxide. CONSTITUTION:A feed pipe 3 for carbon dioxide is connected in the midway of a water discharge pipe 1 for waste alkali water contg. a lime component and a pH detector 5 is interposed on the upper side than the place where the pipe is connected and a pH detector 6 on the lower side. A feed foward control system is constituted of the detector 5 and a valve 4 provided in the pipe 3 which controls the flow rate of carbon dioxide in accordance with the detected result thereof. Further, a feed back control system is constituted of the above-described pH detector 6 on the lower side and a valve 4 provided to the pipe 3 which controls the flow rate of carbon dioxide in accordance with the detected result thereof. Thus, the entire part of the device is made lighter in weight and the quick neutralization reaction is accelerated.

Description

[Detailed Description of the Invention] Devices W'cFi that neutralize and attenuate alkaline wastewater are known, including one that uses sulfuric acid and one that uses liquefied IR bagasse as a neutralizing agent. It was developed as a permanent type exclusively for G-liquid treatment, and is equipped with a large-capacity neutralization reaction tank. Because it is a neutralizing agent, the efficiency of the 1ljK neutralization DL reaction of violet is low, and it can be used in cases where construction and quick neutralization are required, such as neutralization of concrete waste liquid generated during construction work. There were many drawbacks that prevented it from passing. Therefore, in order to raise awareness of the need for neutralization medicine, we will continue to hold the III Neutralization Reaction Practice.
It has been proposed in the United States to install a We*1 system that stirs alkaline waste water and promotes the neutralization reaction with a turbulent flow, but the installations have become increasingly large-scale, and IIIPIIk has become -. Ta.

In addition, the neutralization method with acid requires a qualified person to handle the iron, which is recommended in the Specified Chemistry @ Prize, and also requires the weight of test 1. However, since the middle phase method using lily gas only uses the trachea, there is a large loss of uric acid gas, and it is necessary to supply a much more abundant source of carbon dioxide than the uric acid gas required for the neutralization reaction. kR, Cough Calcicum (CaCOl) large wax raw bark, pH vs. non-smoking K
m s (1@turbidity) was forced to play against Po1.

The present invention is based on such a refreshing feeling, and since it is easy to understand and understand, the 1-P reciprocal child is unreasonably high, and the φ installation and the The purpose of the present invention is to provide a wax that can be subjected to 41 processes in a quick-sliding process.

Because of the above-mentioned formula, the present invention has been made to maintain alkaline drainage cJ? The structure of the Soayu system is that the air supply pipe for the cough gas is connected to the middle of the drainage pipe for alkaline wastewater containing lime water, and the connection area is also connected to the drainage pipe for the alkaline wastewater. The pipes are equipped with H detectors that detect hydrogen ions (g < pu), and the hope is that the LRL Kiweiyu gas will not be trampled upon in the heart of the IX. In order to control the flow rate of the above-mentioned gas,
# As the thread is made II, l [I Ki F hand hook pt
Based on the t detector and its configuration, the R relative calculates the flow rate of the
``The trachea is placed in front of the trachea and the next pulp is made of tweed bank yarn or I11.

The operation and effect of the present invention that overcomes this unconventional structure is as follows.
In order to reduce the middle-phase reaction by incorporating a sheet of alkaline gas into the alkaline waste water, the entire bag wax can be filled with t-@ru instead of pouring about 9 mt of stirring well as in the conventional method. Although it is easy to use, it can also promote the quick neutralization of concrete liquids that occur during can construction work that requires quick and efficient neutralization. The skins lined up can provide suitable alkaline wastewater neutralization treatment equipment.

To my wife, the control of the translation relative Gas Kumijinsho - 'ts feed forward - j Miito Ryoito feedback - j From the inner garden with Ryoito - j #
Because of this, the feedforward method based on the pH detection of the upper ULwU can prevent a delay in the injection of carbon dioxide gas when alkaline wastewater starts flowing out, and untreated alkaline wastewater will not be discharged. length, downstream p
Feedback control using H detection can compensate for errors in the injection source due to the tweed forward system described in 1. field@r etc., feedforward-J
When ilKIIll cannot detect a pH of 1K, the feed puncture control side stops the injection of uric acid gas and prevents the alkaline wastewater from being emptied! ! Im
Therefore, it is possible to avoid deterioration of drainage wood quality due to the lack of water due to the lack of water. reached.

Next, the invention will be explained based on the detailed drawings of the present invention.

System [Schematically incorrect in Figures 1 and 2, fl
The drainage pipe for lfl alkaline wastewater, t'L1 is a storage cylinder for liquefied gas, and it is a vertically ridged gas supply pipe that branches and connects the ill cylinder (2) to multiple points in the drainage Seiryu 1), each of which is equipped with a solenoid valve (
4) is interposed. tel and (@) are pipes connected to the drain pipes upstream and downstream of the Nippon Steel Gas Inlet II Station.
If it is Yokota ware. 1 waterfall pH detector ill is pHI
This is sent to the controller (7), and this total is 171 Fip.
The H7111111 unit (8) was slowly frosted and the number of coolants (
7), Tone @ '14181 is deprived of each electric train 5IP + 41, and my husband is on his own side to produce the corresponding valve - (
9) It has a built-in channel. The downstream pit detection-it is a pm converter (
The recorder 1A is connected to the valve (4) via the recorder 9). (Inside is a turbidity meter installed in the drain pipe (1) in the lower U, and the downstream PA standard detection (6) ↓9 also complies with the requirements of the meter. (Ml), ( Mx) are respectively the pg jetter (b), the idle p#1 electric woodcutter cleaning brush drive brush, 1P1 is the pump for AljIJ drainage pressure j8, 9
The odor is connected to the drain pipe (1) downstream and the friend 11! Closed valve a'4°-41 is a closed valve for operating a bypass circuit for returning waste water from the rear to the training side of the pump RL as necessary.

In addition, as shown in Fig.
In L, a static mixer may be installed for drainage. This static mixer φ@μ is a well-known 111i19, and as shown in Fig. 8, the drainage pipe (1) and the inner fitting are the same, and the helical paddle (1) with a l-pitch round twist and a 512-thick spiral paddle ( 171) and (17r) are distributed to each other along the ULdJ force curve of the drainage, and to the position where the butt Q-11 is directly connected to θ, and the next one is produced.

In the graph of Figure 4, which shows the pH decreasing condition, (a) is -0 period. Static mixer Shin @ is not used tl (b) is used t - is used.

The pH of the Rhinoceros I Recari drainage and the pH of the Rhinoceros forest were
When neutralized with ti=&61, m+I#t- is shown in the %5 diagram. Ink mixer umk & what I'm using.

The present invention deals with alkaline drainage generated in each sandstone of construction work, concrete m liquid, bentonite 11 &
Although it is extremely effective as a neutralizing power method for one gram of liquid, it can also be implemented as a '1111 type method in a factory.

Also, it is of course possible to increase the reaction rate by pressurizing the intermediate phase between the cinnamic acid gas and the alkaline wastewater in the drain pipe to a level higher than the pressure commonly used for the discharge of alkaline wastewater. be.

It goes without saying that, depending on the equipment used, an electromagnetic valve (t) may be used instead of the electromagnetic valve (4). In addition, the solenoid valve (4) is used in combination with the solenoid valve, and at the beginning of the process, the introduction of gas is immediately started at the ``shujikasho'' (4).
In the middle of the 6th row, the electricity was set to 1 sho 1 and the uric acid gas was sent in for 1km.
When adjusted, the nine-handed setup is also effective.

[Brief explanation of drawings]

The drawings show an example of the alkaline wastewater φA phase treatment equipment according to the present invention. Yamakuni, 4th
The figure shows the pH of the alkaline wastewater of P)l for the distance 11 from the uric acid gas supply point to the flow point of P)l, and the pH of the alkaline wastewater of No. 6 F′i when neutralized to pH-IL5. This is a correlation graph. -452- (axis out) SS

Claims (1)

[Claims] A carbon dioxide gas supply pipe (3) is connected to the middle of the alkaline drainage pipe containing lime components, and the bond #!
pH detectors TI+ and 161 that detect all water-based ions at once (pH) are installed in the drain pipes of the paste and cho-tebi, respectively, and the supply of IQ ash 1 gas is carried out to determine the excess or deficiency of the pitch phase reaction. In order to prevent this from happening, I used a pH detector from the 10th century Confucius - 61 and 7 composition results KIk and a flow of carbon dioxide.
11j-Sij-Kidatsuki (Pulp+41 installed in iJaa) and Eri Feed Forward-J- system are set up, and -〇Key upper + side Pi accumulator-
6) and based on the detection results, an eli-feedback control system is set up in the 10th air supply lightning (3)... to extract the IIIIIlIl mineral ore, and the next pulp +41... is set up. lK in alkaline wastewater: J torture equipment-0