KR20080021167A - A sanitation disposal system for water - Google Patents

Abstract

A wastewater treatment system is provided to minimize consumption of the treatment chemicals by using adequate quantities of treatment chemicals according to acidities of raw water and treated water, perform the wastewater treatment process promptly and accurately by completely automating the entire process, and substantially improve quality of the treated water by minimizing residual quantities of the treatment chemicals contained in final treated water. A wastewater treatment system comprises: first and second line mixers(11,12) sequentially installed between a water intake pump(20) and a flotation tank(18); a gas dissolver(19) installed between the second line mixer and the flotation tank; a first treatment chemical storage tank(14) that communicates with the first and second line mixers by feed pipes(14c,14d); a second treatment chemical storage tank(15) that communicates with the first and second line mixers by feed pipes(15c,15d); a plurality of fixed chemical quantity feeders(14a,14b,15a,15b) mounted on the respective feed pipes of the first and second treatment chemical storage tanks; a first acidity measuring unit(15-1) mounted on a flow path between the water intake pump and the first line mixer; a second acidity measuring unit(16) mounted on a flow path between the first and second line mixers; a third acidity measuring unit(17) mounted on a flow path between the second line mixer and the gas dissolver; and a control unit electrically connected to the fixed chemical quantity feeders and the first to third acidity measuring units respectively to control feed quantities of treatment chemicals fed into the first or second line mixer by operating one of the fixed chemical quantity feeders according to acidity measurement values received from the first to third acidity measuring units.

Description

A sanitation disposal system for water

1 is an opening diagram showing a purification system of wastewater according to the present invention.

2 is a flowchart illustrating a process of the wastewater purification treatment system according to the present invention.

Figure 3 is a block diagram illustrating the relationship between the components of the waste water purification treatment system according to the present invention and operating in conjunction with the control means.

Figure 4 is a longitudinal sectional view showing a cross-sectional view of the structure of the floating tank in the wastewater purification treatment system according to the present invention.

5 is a plan view of the flotation tank shown in FIG.

Explanation of symbols on the main parts of the drawings

10: wastewater purification treatment system 20: intake pump

11: first line mixer 12: second line mixer

13: sludge removal unit 14: first treatment chemical storage tank

15: second treatment chemical storage tank 16: control means

18: Floating tank 19: Gas dissolving device

21: sludge treatment device

The present invention relates to a wastewater purification system, and more particularly, by purifying wastewater using only minimal treatment chemicals, so as to significantly reduce the cost of purification and to improve the quality of the treated water. A wastewater purification system.

In general, the conventional wastewater purification treatment system is for purifying contaminated raw water, and includes a water intake pump, first and second chemical treatment tanks, a storage tank, a floating tank, a gas dissolving device, a sludge treatment device, It consists of the first and second treatment chemical storage tanks.

The intake pump takes raw water and pumps it to the first chemical treatment tank.

The first chemical treatment tank temporarily stores the raw water pumped from the intake pump to treat the first chemical. The second chemical treatment tank temporarily stores the raw water supplied from the first chemical treatment tank and supplied to the second chemical treatment tank.

The first and second chemical treatment tanks are connected in communication with the first and second treatment chemical storage tanks, respectively. That is, the first chemical treatment tank is connected by the first treatment chemical storage tank and the pipe, the second chemical treatment tank is connected by the second treatment chemical storage tank and the pipe, and a manual belt is mounted on each connection pipe.

The reservoir temporarily stores the first and second chemically treated chemical treatment water before flowing into the flotation tank while sequentially passing through the first and second chemical treatment tanks.

The flotation tank receives the chemical treatment water in the storage tank to float the floating matters contained in the chemical treatment water, the treated water from which the floating matter is removed is discharged, and the collected floats and sludge are stored and dewatered by the sludge treatment apparatus. Drained into the cake.

The gas dissolving device sucks a part of the treated water flowing into the floating tank from the storage tank and supplies the microbubble water into the floating tank.

The first and second treatment chemical storage tanks are connected to the first and second chemical treatment tanks, respectively, and the caustic soda is stored as a treatment chemical in the first treatment chemical storage tank, and the second treatment chemical storage tank is PACs are stored as treatment chemicals.

In the conventional wastewater purification treatment system having the above configuration, when raw water is filled in the first chemical treatment tank by a water intake pump, the operator opens the valve of the first treatment chemical storage tank and adds an appropriate amount of caustic soda into the first chemical treatment tank. By supplying by hand manually to significantly increase the acidity of the raw water filled in the first chemical treatment tank, pumped into the second chemical treatment tank, the operator is again reminded to the primary chemical treated treatment water that is popped into the second chemical treatment tank The valve of the second treatment chemical storage tank is manually opened to supply an appropriate amount of PAC into the second chemical treatment tank to significantly lower the acidity of the treated water, thereby causing the floating matter contained in the treated water to float on the surface.

The treated water in which the float floats as described above is temporarily stored in the storage tank and flows into the float tank, and the suspended matter floated on the surface and sludge deposited on the bottom of the float is collected and stored and dehydrated by the sludge treatment apparatus. It is discharged to the cake.

However, in the conventional wastewater purification treatment system as described above, regardless of the degree of acidity of raw water, the operator performs the first and second chemical treatments by hand, and since the degree of acidity of the raw water is not known, In order to use too much water treatment chemicals, there is a problem that the cost of water treatment is not only high but also the amount of water treatment chemicals remaining in the treated water is greatly reduced.

Accordingly, the present invention has been made in view of the above-described conventional problems, the object of which is to significantly reduce the cost of purification and to improve the quality of the purified treatment water by purifying wastewater using only minimal treatment chemicals. To provide a water treatment system that can be.

The object of the present invention is a water treatment system including a water intake pump, a plurality of chemical treatment tanks, two treatment chemical storage tanks, a flotation tank, a sludge treatment apparatus and the like, wherein the water treatment system is disposed between the intake pump and the flotation tank. First and second line mixers installed sequentially to mix raw water and water treatment chemicals to treat raw water chemicals; A gas dissolving device installed between the second line mixer and the flotation tank to absorb all or a portion of the chemical treatment water passing through the second line mixer to compress and mix the ultra high-strength foam and the reactor gas in the chemical treatment water to eject into the flotation tank. Wow; A first treatment chemical storage tank connected to each of the first and second line mixers by a supply pipe; A second treatment chemical storage tank connected to each of the first and second line mixers by a supply pipe; A plurality of drugs mounted on respective supply pipes of the first and second treatment chemical storage tanks to supply the treatment chemicals in the first and second treatment chemical treatment tanks to the first or second line mixer in a required amount; A fixed amount supply device; First acidity measuring means mounted on a flow path between the intake pump and the first line mixer to measure the acidity (pH) of raw water supplied into the first line mixer and transmit the measurement signal; A second, mounted on a flow path between the first line mixer and the second line mixer, passing through the first line mixer to measure the acidity (pH) of the first chemically treated primary chemical treated water and transmitting the measured signal; Acidity measuring means; A third device mounted on a flow path between the second line mixer and the gas dissolving device and measuring the acidity (pH) of the second chemically treated secondary chemical treated water passing through the second line mixer and displaying the measured value; Acidity measuring means; Among the plurality of drug quantitative supply devices, the first acidity measurement means to the third acidity measurement means, each of which is electrically connected to each other according to the acidity measurement value received from the first to the third acidity measurement means; It can be achieved by a water treatment system comprising a control means for operating any one of the corresponding to control the amount of the chemical supplied to the first or second line mixer.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the wastewater purification treatment system according to the present invention.

1 is an opening diagram showing a wastewater purification treatment system according to the present invention, Figure 2 is a flow chart illustrating a process of the wastewater purification treatment system according to the present invention, Figure 3 is a wastewater purification treatment system according to the present invention Figure 4 is a block diagram illustrating the relationship between the components operating in connection with the control means, Figure 4 is a longitudinal cross-sectional view showing a cross-sectional structure of the floating tank in the wastewater purification treatment system according to the invention, Figure 5 4 is a plan view showing the floating tank shown in FIG.

1 to 5, the water treatment system 10 according to the present invention includes a water intake pump 20, first and second line mixers 11 and 12, and first and second treatment chemical storage tanks. (13) (14), a plurality of chemical metering devices (13a) (13b) (14a) (14b), first, second and third acidity measuring means (15) (16) (17), The floating tank 18, the gas dissolving device 19, the control means 16, and the sludge treatment apparatus 21 are included.

The intake pump 20 pumps raw water and supplies the same into the first line mixer 11.

The first and second line mixers 11 and 12 are for smoothly mixing the water treatment chemicals supplied to the incoming raw water. The first and second line mixers 11 and 12 are sequentially installed between the intake pump 20 and the floating tank 18 to treat raw water and water. Mix the chemicals to treat the raw water.

The gas dissolving device 19 is installed between the second line mixer 12 and the flotation tank 18 to absorb all or part of the chemical treatment water passing through the second line mixer 12 to the chemical treatment water. The ultra-strengthening gun and the reactor gas are compression mixed and ejected into the flotation tank.

The first treatment chemical storage tank 13 stores the acidity increasing agent to be supplied to the first or second line mixers 11 and 12 therein, and the first and second line mixers 11 ( 12) is connected to each other by a supply pipe.

The second chemical drug storage tank 14 stores the acid lowering agent supplied to the first or second line mixers 11 and 12 therein, and the first and second line mixers 11 and 12. ) Is connected to each other by a supply pipe.

The sludge treatment apparatus 21 stores the collected sludge, dehydrates it, and discharges the sludge.

The plurality of chemical metering devices 14a, 14b, 15a and 15b may be supplied to respective supply pipes 14c, 14d and 15c of the first and second treatment chemical storage tanks 14 and 15, respectively. 15d) is supplied to the first or second line mixers 11 and 12 in the first and second treatment chemical treatment tanks 14 and 15 by the required amount.

The first acidity measuring unit 15-1 measures the acidity (pH) of raw water supplied into the first line mixer 11 and transmits the measurement signal to the intake pump 20 and the first line mixer ( 11) is mounted on the flow path between.

The second acidity measuring means 16 is mounted on a flow path between the first line mixer 11 and the second line mixer 12 to pass through the first line mixer 11 and undergo primary chemical treatment. The acidity (pH) of the chemical treatment water is measured and the measurement signal is transmitted.

The third acidity measuring means 17 is mounted on the flow path between the second line mixer 12 and the gas dissolving device 19, passes through the second line mixer 12, and undergoes secondary chemical treatment. Measure the acidity (pH) of the treated water and display the measurement.

The flotation tank 18 receives the treated water from the gas dissolving device 19 while passing through the first and second line mixers 11 and 12 to collect the boron contained in the treated water. It is to float and remove on the surface, and the water tank 18a, the diffusion pipe 18b, the diffusion guide plate 18c, the blowoff pipe 18d, the inner cylinder 18e, the drip tray 18f, and the float capture 18g, the float trap 18h, and the sludge removal unit 13 are comprised.

The water tank 18a is a cylindrical tank having an open top surface, and the diffusion tube 18b is a cylindrical shape with an open top surface, and is fixed to a central portion of the bottom surface of the water tank 18a.

The diffusion guide plate 18c is fixedly attached to a central portion of the bottom surface of the diffusion tube 18b in a conical shape.

The blower pipe 18d is a pipe disposed at an upper end of the diffusion guide plate 18c by bending at an end of the blower pipe 18d downward and connected to the second line mixer 12 and the gas dissolving device 19. The fine strength catcher or the secondary chemically treated water and the ultra fine strength catcher which are supplied from the gas dissolving device 19 are ejected together into the diffusion tube 18b.

The inner cylinder 18e is a cylinder having an upper and lower surface having a diameter smaller than that of the water tank 18a, the outer circumferential surface being formed at regular intervals from the inner circumferential surface of the water tank 18a to form a flow path, and an upper end portion than the upper end of the water tank 18a. It is fixedly installed on the inside of the water tank 18a so as to be located high.

The drip tray 18f has a cross-section of a 'b' shape and is fixedly installed along the outer circumferential surface of the upper end of the water tank 18a to receive and drain the final treated water overflowing from the water tank 18a.

The float trap 18g is a trough having a '∪' shaped cross section, which is installed across the upper end of the inner cylinder 18e, wherein the upper end of the float trap 18g is almost similar to the surface of the inner cylinder 18f. It is installed to be located.

The float trap 18h is rotatably installed at the center of the float trap 18g to capture floats floating on the water surface in the inner cylinder 18e and collected in the float trap 18g.

The sludge removing unit 13 collects sludge deposited on the bottom surface of the water tank 18a and discharges the sludge to the sludge treatment apparatus 21. The sludge collecting groove 13a, the conveying screw 13b, and the sludge It consists of a collection bar 13c.

The sludge collecting groove 13a is recessed downward in the bottom surface of the water tank 18a, and the conveying screw 13b is rotatably embedded in the sludge collecting groove 13a in the sludge collecting groove 13a. The collected sludge is transferred to the sludge treatment apparatus 21, and the sludge collecting bar 13c is rotated along the outer circumferential surface of the diffusion pipe 18b to sweep the sludge deposited on the bottom surface of the water tank 18a. Collect into collection groove 13a.

The control means 16 includes the plurality of drug dosage devices 13a, 13b, 14a, 14b, first, second and third acidity measuring means 15-1, 16, 17 And a plurality of medicine quantity supply devices (13a) (13b) (14a) which are electrically connected to each other according to the acidity measurement values received from the first to third acidity measurement means (15-1) (16) (17). The corresponding amount of the processing chemicals supplied into the first or second line mixers 11 and 12 is controlled by operating any of the corresponding ones of the 14b.

In addition, the control means 16 is the raw water acidity measurement step (S100), the predetermined value checking step (S200), the acidity increase agent supply step (S300), the first treatment water acidity (pH) measurement step (S400) And, the acid lowering agent supply step (S500), the second treatment water acidity measurement and display step (S600), the second treatment water acidity measurement value confirmation step (S700), and the alarm generation step (S800) to execute a program First and second chemical treatment process for raw water is carried out automatically.

The raw acidity measurement step (S100) measures the acidity (pH) of the raw water pumped through the intake pump and transmits the measured value.

The predetermined value checking step (S200) compares the measured acidity (pH) of the measured raw water with a preset predetermined value and checks whether there is the same value as the measured value, and when there is a predetermined value equal to the measured value, the acidity increase supply is supplied. Step S300 is executed, and if there is no predetermined value equal to the measured value, the first treated water acidity measurement step S400 is executed.

The predetermined value is to set the respective measured values of the expected number of raw water, and the predetermined amount of supply of the acidity increasing agent for each predetermined value, respectively, in the predetermined value checking step (S200), the acidity measurement value of the raw water and the predetermined predetermined value The comparison is made to see if there is a predetermined value equal to the measured value.

The acidity increasing agent supply step (S300) supplies an acidity increasing agent (pH) corresponding to a predetermined value into the first line mixer when there is a predetermined value in the predetermined value checking step (S200).

The first treatment water acidity measurement step (S400) measures the acidity (pH) of the first treatment water passed through the first line mixer 11.

The acidity lowering agent supplying step (S500) supplies the acidity lowering agent (pH) into the second line mixer by an amount corresponding to the acidity (pH) of the primary treated water.

The second treatment water acidity measurement and display step (S600) measures the acidity (pH) for the second treatment water passed through the second line mixer 12, and displays the measured value.

The secondary treatment water acidity measurement check step (S700) confirms whether the acidity (pH) measurement for the secondary treatment water is within the predetermined value, and returns when the acidity measurement is within the predetermined value.

The warning generation step (S800) if the acidity measurement value of the secondary treatment water in the second treatment water acidity measurement check step (S700) is notified to give a warning to the administrator to take action by returning after returning a warning.

The water treatment system according to the present invention having the above configuration uses only the amount of water treatment chemicals suitable for the acidity (pH) according to the acidity (pH) of raw water and treated water, thereby minimizing the use of the water treatment chemicals. By fully automating, the water treatment cost can be drastically reduced and the water treatment process can be carried out quickly and accurately, and the quality of the treated water can be greatly improved by minimizing the residual amount of the water treatment chemical contained in the final treated water.

The water treatment system according to the present invention having the configuration as described above has an effect of significantly lowering the purification treatment cost by improving water purification using only minimal treatment chemicals and also improving the quality of the purified treatment water.

Claims (3)

In a water treatment system including a water intake pump, a plurality of chemical treatment tanks, two treatment chemical storage tanks, a floating tank, and a sludge treatment device, the water treatment system 10 includes a water intake pump 20 and a floating tank 18. First and second line mixers 11 and 12 disposed sequentially between the first and second line mixers 11 and 12 for mixing raw water and water treatment chemicals; It is installed between the second line mixer 12 and the flotation tank 18 to absorb all or part of the chemical treatment water passing through the second line mixer 12 to compress and mix the ultra high-strength cloth and the reactor body in the chemical treatment water. A gas dissolving device 19 for ejecting into the flotation tank; A first treatment chemical storage tank 14 connected in communication with the first and second line mixers 11 and 12 and the supply pipes 14c and 14d, respectively; A second treatment chemical storage tank 15 connected in communication with the first and second line mixers 11 and 12 and the supply pipes 15c and 15d, respectively; The first and second treatment chemical storage tanks 13 and 14 are mounted on respective supply pipes, and the required amount of treatment chemicals in the first and second treatment chemical treatment tanks 13 and 14 are adjusted by the required amount. A plurality of chemical metering apparatuses 13a, 13b, 14a and 14b for supplying to the first or second line mixers 11 and 12; First acidity is mounted on the flow path between the intake pump 20 and the first line mixer 11 to measure the acidity (pH) of the raw water supplied into the first line mixer 11 and transmit the measurement signal. Measuring means 15-1; It is mounted on the flow path between the first line mixer 11 and the second line mixer 12 and passes through the first line mixer 11 to measure the acidity (pH) of the primary chemical treated water. Second acidity measuring means (16) for transmitting the measured signal; Mounted on the flow path between the second line mixer 12 and the gas dissolving device 19 to pass through the second line mixer 12 to the acidity (pH) of the second chemical treatment water Third acidity measuring means (17) for measuring and displaying the measured value; The first to third acidity diagrams are electrically connected to the plurality of medicine quantity supply devices 14a, 14b, 15a, and 15b, and the first acidity measuring means 15 to the third acidity measuring means 17, respectively. According to the acidity measurement value received from the measuring means 15-1, 16, 17, any one of the plurality of drug delivery devices 14a, 14b, 15a, 15b is operated to operate the first one. Or control means (19) for controlling the supply amount of the treatment chemical supplied into the second line mixer (11) (12). The raw water acidity measurement step (S100) of claim 1, wherein the control means (16) measures an acidity (pH) of raw water pumped through the intake pump and transmits the measured value; A predetermined value checking step (S200) of checking whether there is a predetermined value corresponding to the measured acidity (pH) of raw water; An acidity increase agent supplying step (S300) of supplying an acidity (pH) raising agent corresponding to a predetermined value into a first line mixer when there is a predetermined value in the predetermined value checking step (S200); A first treatment water acidity (pH) measuring step (S400) of measuring acidity (pH) of the first treatment water having passed through the first line mixer; An acidity lowering agent supplying step (S500) of supplying an acidity lowering agent (pH) lowering agent into the second line mixer by an amount corresponding to an acidity pH (pH) of the first treated water; A second treatment water acidity measurement and display step (S600) of measuring acidity (pH) of the second treated water passing through the second line mixer and displaying the measured value; Checking the acidity (pH) value of the secondary treated water within a predetermined value and returning when the acidity value is within the predetermined value (S700); If the secondary treatment water acidity measurement value check step (S700) is a water treatment system comprising a warning generating step (S800) to issue a warning and return when the acidity measurement value of the secondary treatment water is not within the predetermined value. 2. The floating tank (18) according to claim 1, further comprising: a cylindrical water tank (18a) having an open top surface; A diffuser tube (18b) fixed in a central portion of the bottom surface of the water tank (18a) as an open cylindrical shape; A diffusion guide plate (18c) having a conical shape and fixedly attached to a central portion of the bottom surface of the diffusion pipe (18b); An end is bent at a right angle downward and is disposed above the diffusion induction plate 18c, and is connected in communication with the second line mixer 12 and the gas dissolving device 19 to dissolve the gas dissolving device 19. An ejection pipe 18d for ejecting the ultra-fine strength catcher or the secondary chemically treated water and the ultra-fine strength catcher into the diffusion pipe 18b; The upper and lower surfaces having a diameter smaller than that of the water tank 18a are open cylinders, and the outer circumferential surface is formed at regular intervals from the inner circumferential surface of the water tank 18a to form a flow path, and the water tank 18a so that the upper end is positioned higher than the upper end of the water tank 18a. An inner cylinder 18e fixedly installed at the inner side thereof; A water gutter 18f having a cross section of a 'b' shape and fixedly installed along the outer circumferential surface of the upper end of the water tank 18a to receive and drain the final treated water flowing from the water tank 18a; A float trap 18g installed across the upper end of the inner cylinder 18e; A float trap 18h rotatably installed at the center of the float trap 18g to capture floats floating on the water surface in the inner cylinder 18e and to collect them in the float trap 18g; Sludge collection device 13a formed to be concave downward in the bottom surface of the water tank 18a, and sludge collected in the sludge collection groove 13a rotatably embedded in the sludge collection groove 13a. Sludge collection to collect into the sludge collection groove (13a) by sweeping the sludge deposited on the bottom surface of the tank (18a) while rotating along the outer circumferential surface of the diffusion pipe (18b) and the conveying screw (13b) to transfer to 21) And a sludge removal unit (13) having a bar (13c).

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