CN1821118A - Grey water producing device and method - Google Patents
Grey water producing device and method Download PDFInfo
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- CN1821118A CN1821118A CN 200610006370 CN200610006370A CN1821118A CN 1821118 A CN1821118 A CN 1821118A CN 200610006370 CN200610006370 CN 200610006370 CN 200610006370 A CN200610006370 A CN 200610006370A CN 1821118 A CN1821118 A CN 1821118A
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Abstract
The invention provided an apparatus and a method for producing reusable water, in each of which reusable water of the water quality satisfying targeted values is produced and the sum total of operating costs required in the whole process is minimized. Inflow sewage 1 is treated by a solid separating and organic matter/nutritious salt removing unit 2 to obtain inflow water 3 to be made to flow in a disinfection-effective component A reaction part 5. The inflow water 3 is treated with a disinfection-effective component A18 in the reaction part 5 to obtain inflow water 6 to be made to enter a disinfection-effective component B reaction part 7. The inflow water 6 is treated with a disinfection-effective component B19 in the reaction part 7 to obtain reusable water as treated water 8. The targeted values 12a, 12b of the quality of treated water are given beforehand to a proper manipulated variable calculating means 13. An inflow water quality measuring instrument 4a or 4b takes in inflow water quality information 10a or 10b corresponding to the targeted value a or b and a treated water quality measuring instrument 9a or 9b takes in treated water quality information 11a or 11b corresponding to the targeted value 12a or 12b. The proper manipulated variable calculating means 13 calculates the optimum values of manipulated variables of the reaction parts 5, 7 and controls the reaction parts so that the targeted values of the quality of treated water are satisfied and the sum total of operating costs is minimized.
Description
Technical field
The present invention relates to purify and flow into the following water treatment operation of water down, particularly relate to the operation scheme of middle water manufacturing process with middle water manufacturing function of utilizing again.
Background technology
Middle water is because of being used for various uses to the reuse water of water and industrial water drainage down and rainwater as low water quality supply, so be called miscellaneous water again.Particularly in the area of water resources shortage, effective utilization of water is to be even more important in this.Middle water is a lot of as the practical example of watering privy water, but also can be used as watering water, cooling water, landscape water.In addition, say in principle that middle water also can be used as the former water part of water as agricultural water, process water.
Following water can be enumerated facture that adopts active sludge and the ozonize that back segment has thereof as the middle water manufacturing process of former water.The general facture that adopts active sludge, the solids component of water precipitates removal with initial settling tank flowing into down, makes solvability BOD enter active sludge at aerator tank, the active sludge precipitate and separate, obtains clarifying supernatant liquor at final tank.That is, implement solid-liquid separation and removal organism/nutritive salt.At this back segment, have the operation of ozonize, with decolouring, deodorization and residual organic further be decomposed into purpose, but also have disinfectant effect simultaneously.These treating water, what can be used for warding off disease and propagating disinfects, as the above-mentioned various uses of middle water supply.
As the representation example of disinfecting, can enumerate chlorine agent processing, ozonize, uviolizing processing, Fenton (Off エ Application ト Application) reaction treatment.The sterilization of the oxidizing power of the OH free radical that produces when recently, the someone proposes to adopt the trickle air filled cavity that is called micron bubble or nanometer bubble to destroy.
Wherein, to handle be the processing of adopting clorox or dioxide peroxide, chloramines (Network ロ ラ ミ Application), chlorine etc. in the chlorine agent.The mode that adopts clorox is cheap mode, generally uses this mode.Owing to have certain residual, sterilisation effect can be maintained to the end of middle water pipe arrangement.In addition, colourity also has removal to a certain degree.But the problem of existence is to produce the disinfection byproduct (DBP) that trichloromethane etc. has carinogenicity sometimes.
Ozonize because electric power consumption is big, processing cost is high, but has the oxidizing power stronger than chlorine agent, can carry out disinfection more completely.Even pathogenicity bo protozoacide Network リ プ ト ス Port リ ジ ウ system is more effective than chlorine agent with ozonize.In addition, decolouring, deodorising effect is also strong than chlorine agent.But, have problem sometimes as the bromic acid generation of disinfection byproduct (DBP).Ozone is fast owing to self-decomposition speed, noresidue, and sterilisation effect can not reach the end of pipe arrangement.
Uviolizing is handled, and also is that electric power consumption is big, processing cost is high, but has medicine, the characteristics that subsidiary engine is few do not used.There is not report about the disinfection byproduct (DBP) problem yet.Because make and use up, sterilisation effect depends on the photopermeability for the treatment of water.
It is to adopt ferrous iron and hydrogen peroxide to produce the OH free radical that Fenton's reaction is handled, and carries out disinfection with its strong oxidizing power.
Trickle air filled cavity handle be air as trickle bubble injection water, the air in this bubble dissolves in water, is used in OH free radical and the shockwave that moment that bubble eliminates emits and carries out disinfection.But practical example is few, does not become the report example of problem about disinfection byproduct (DBP).
The following water treatment plant of water manufacturing function in having sometimes the supernatant liquor ozonize of final precipitation process, handles as the height that middle water is made, and carries out the chlorine agent thereafter and handles.
One of main purpose of ozonize is a decolorizing effect, and therefore, as the injection control method of ozone, for example patent documentation 1.In patent documentation 1, proposition be colourity with ozonize water as target value, the method for control ozone injection rate.In addition, originally, the purposes of central water exists when a plurality of, even at the necessary water quality difference of various uses, also can implement identical disinfect and supply with the middle water of identical water quality.
[patent documentation 1] spy opens flat 7-185575 communique
Summary of the invention
To the purpose that following water treatment water carries out ozone, chlorine agent processing, be sterilization and removal colourity, organism, stink.In the water quality benchmark of water, according to purposes such as watering privy water, watering water, cooling water, landscape water, agricultural waters, benchmark value was different during these projects were included in.When improving down the Water reuse rate and since 1 treatment plant must make multi-purpose in water, so various suitable water quality management is necessary.
Then produce following problem therewith accordingly.With process water or the lavatory washing water middle water as object, when handling with ozonize and chlorine agent when carrying out disinfection, to supply with as the part of the former water of last water be unsuitable to water in this.This is because sterilization produced has toxic byproduct to be contained among the middle water with the trichloromethane of ozone and chlorine agent generation and bromic acid etc.In addition, water is also incorrect as agricultural water in this.It is believed that agricultural water, for example colourity must be reduced to the process water degree.
For the water quality management of water in carrying out, in making, middle water reduces the ozonize of means and chlorine agent processing etc. as sterilization and colourity, stink etc., must suitably control, but ozone and chlorine agent etc., sterilization or decolouring, deodorising effect and feature thereof are different.Therefore,, for example, only adjust the ozone input rate and make and satisfy multiduty multiple condition etc., consider it is disadvantageous from the effective utilization and the final cost aspect of medicament only with individual curing or independent water quality benchmark project during as controlled member.
In patent documentation 1, in handling, the method at the colourity target value control ozone input rate for the treatment of water is arranged with the following water height of ozone.Yet,, handle so the middle water that ozonize is crossed is generally implemented the chlorine agent at its back segment for sterilisation effect being remained to the end of pipe arrangement.Handle by the chlorine agent, the colourity of water in can reducing when injecting ozone according to this control method, when implementing chlorine agent processing then, according to the purposes of middle water, can excessively be removed colourity.That is, meaning medicament can not effectively utilize, the meaningless consumption of medicine and electric power.This can think that the water quality benchmark beyond the colourity also must consideration.
As mentioned above, require water quality not simultaneously according to purposes, the change of manipulated variable is switched and is moved in necessary disinfection.Yet, for the total operating cost that makes operation reaches minimum, obtain the means of the appropriate value of the chlorine agent injection rate of various uses or ozone injection rate, also do not have so far.
The objective of the invention is in view of above-mentioned prior art problems point, provide a kind of total operating cost that satisfies water quality objective value and operation to reach minimum middle water making device and manufacture method.
In order to achieve the above object, the device of water during following water of the present invention is made as former water is to have many in the outlet of descending the water treatment operation to have the control device that sterilizing function is possessed water manufacturing process in device and the control.Above-mentioned control device, it is characterized in that, has the water quality information that sterilizing function is possessed the treating water of device outlet that has that sterilizing function is possessed the inflow water of device portal and downstream side according to upstream side, calculating is satisfied predefined water quality treatment target value and is made the above-mentioned optimum value that overall operation cost summation that sterilizing function possesses device reaches minimum operation amount that has, according to this optimum value, control above-mentioned device respectively with sterilizing function.
In addition, the present invention is the middle water manufacture method of water in making as former water from the following water of following water treatment operation, it is characterized in that, in the outlet of water treatment operation down, according to configured in series the 1st sterilizing function possess the water quality information that inflow water that device flows into and the 2nd sterilizing function are possessed the effusive treating water of device, calculating is satisfied predefined water quality treatment target value and is above-mentionedly had an optimum value that overall operation cost summation that sterilizing function possesses device reaches minimum operation amount, according to this optimum value, control above-mentioned device respectively with sterilizing function.
The effect of invention
According to the present invention, the desired various water quality benchmark of water various uses in can realizing satisfying, and the operation of the disinfection unit that can maximum reduce cost.
Description of drawings
Fig. 1 is the pie graph that adopts the middle water making device of the present invention's the 1st embodiment.
Fig. 2 is the relation schema figure of sterilization effective constituent input rate and water quality project clearance.
Fig. 3 is the relation schema figure of ozone and chlorine agent injection rate and running cost.
Fig. 4 is the pie graph that adopts the middle water making device of the present invention's the 2nd embodiment.
Fig. 5 is the relation schema figure of chlorine agent input rate and concentration of residual chlorine.
Fig. 6 is the pie graph that adopts the middle water making device of the present invention's the 3rd embodiment.
Nomenclature
1: flow into water down, 2: solid-liquid separation, organism/nutritive salt is removed facility, 3: flow into water, 4a, 4b: flow into the water quality tester, 5: sterilization effective constituents A reacting part, 6: flow into water, 7: sterilization effective constituent B reacting part, 8: treating water, 9a, 9b: water quality treatment tester, 10a, 10b: flow into water quality information, 11a, 11b, 11c: water quality treatment information, 12a, 12b: water quality treatment target value, 13: optimum operation operational ton calculation apparatus, 14: sterilizing function is possessed device A operation amount, 15: sterilizing function is possessed device B operation amount, 16: sterilizing function is possessed device A, 17: sterilizing function is possessed device B, 18: the sterilization effective constituents A, 19: sterilization effective constituent B, 30: water quality project a water quality treatment replaces the index tester, 40: treating water replaces indication information.
Embodiment
To a plurality of embodiments of the present invention, described in detail below with reference to accompanying drawing.Also have, same-sign is represented same content among each figure.
(the 1st embodiment)
Fig. 1 is the middle water making device of the 1st embodiment according to the present invention, more particularly, is the pie graph with following water treatment operation operation scheme of middle water manufacturing function.Water 1 is removed facility 2 and is handled by solid-liquid separation, organism/nutritive salt under flowing into, and forms sterilization effective constituents A reacting part and flows into water 3.
Solid-liquid separation, organism/nutritive salt are removed among the facility 2, and solid-liquid separation is an example with general following water treatment plant, sets initial settling tank and final tank.For example, adopt filtering membrane to replace final tank, as long as the facility of energy separate solid composition and liquid component.With the general water treatment plant down of removing organism/nutritive salt is example, adopts activated sludge method, but adopts chemical gimmick or physics gimmick also passable.When requiring the middle water of highly handling, after active sludge treatment, adopt flocculation sediment filtration method or ozonize method, activated carbon treatment method to handle sometimes, remove contained organism/nutritive salt.
Enter the water quality of the inflow water 3 of sterilization effective constituents A reacting part 5,, measure with flowing into water quality tester 4a, 4b respectively at water quality project a, water quality project b.Sending suitable operation amount calculation apparatus 13 to the inflow water quality information 10a, the 10b that flow into water quality tester 4a, 4b mensuration.Control device of the present invention is equivalent to this suitable operation amount calculation apparatus 13.
Flow into water 3 and flow into sterilization effective constituents A reacting part 5, handle with sterilization effective constituents A 18.Sterilization effective constituents A 18 for example, adopts ozone or chlorine agent etc., and in addition, the water, hydrogen peroxide, the sterilization that contain trickle air bubble also can be used with hydrogen peroxide and the ferrous iron that ultraviolet ray reaches to implementing Fenton's reaction.
Be sent to sterilization effective constituent B reacting part 7 at sterilization effective constituents A reacting part 5 treated waters as flowing into water 6, B19 handles by sterilization effective constituent.Same with sterilization effective constituents A 18, sterilization effective constituent B19 for example, adopts ozone or chlorine agent etc., and in addition, the water, hydrogen peroxide, the sterilization that contain trickle air bubble also can be used with hydrogen peroxide and the ferrous iron that ultraviolet ray reaches to implementing Fenton's reaction.But as shown in Figure 1, the outflow water of sterilization effective constituent B reacting part 7 during water, is generally used the chlorine agent in directly supplying with as treating water 8.
The water quality for the treatment of water 8 at water quality project a, water quality project b, is measured with handling water quality analyser survey device 9a, 9b respectively, and this water quality treatment information 11a, 11b send suitable operation amount calculation apparatus 13 to.To this suitable operation amount calculation apparatus 13, when supplying with above-mentioned inflow water quality information 10a, 10b, also provide predefined water quality treatment target value 12a, 12b.
Suitably operation amount calculation apparatus 13 based on resulting in of these input informations, is exported sterilizing function and is possessed the operation amount 14 of device A5 and the operation amount 15 that sterilizing function is possessed device B7.
Secondly, one of the calculation method that has in the suitable operation amount calculation apparatus 13 example is illustrated.Generally, the sterilization injection rate of effective constituent and the relation of water quality, because of water-quality constituents different.Fig. 2 illustrates to have 2 sterilizing functions and possesses device, the injection rate when sterilization effective constituent separately is A and B and the mode chart of water quality relation.The longitudinal axis water quality project a of Fig. 2 (a) for example is the bacteria live number, and longitudinal axis water quality project b (b) for example is a colourity.
Suitably have the injection rate of these sterilization effective constituents and the relation of water quality treatment in the operation amount calculation apparatus 13 in advance.When this relation is used the data representation of sheet form, be equivalent to the treatment effect table among the present invention.Perhaps, when this relation is used function representation shown in following formula (1)～(9), be equivalent to the treatment effect function among the present invention.
The clearance r of water quality project a with sterilization effective constituents A 18
AA and with the clearance r of the water quality project a of sterilization effective constituent B19
BThe function of a is represented with following formula.Here, the effective constituents A of for example sterilizing is an ozone, and when sterilization effective constituent B was the chlorine agent, then water quality project a was a coliform existence number, and water quality project b is a colourity.
r
Aa＝f
Aa(x
A) …(1)
r
Ba＝f
Ba(x
B) …(2)
X in the formula
A: the input rate of sterilization effective constituents A 18, x
B: the input rate of sterilization effective constituent B19.Equally, water quality project b's removes to fall rate r
AB, r
BThe function of b is represented with following formula.
r
Ab＝g
Ab(x
A) …(3)
r
Bb＝g
Bb(x
B) …(4)
Inflow water quality tester 4a, 4b with sterilization effective constituents A reacting part 5 measure, as the concentration of water quality project a that flows into water quality information 10a, 10b supply and water quality project b respectively as C
10A, C
10B, the then concentration C of the water quality project a for the treatment of water 8
8A is with formula (5) expression.
C
8 a＝C
10 a×(1-f
Aa(x
A))×(1-f
Ba(x
B)) …(5)
Equally, the concentration C of the water quality project b for the treatment of water 8
8B is with formula (6) expression.
C
8 b＝C
10 b×(1-g
Ab(x
A))×(1-g
Bb(x
B)) …(6)
Survive number as water quality project a, when colourity is set as water quality project b when coliform,, can adopt coliform transmitter and colourimeter respectively as flowing into water quality tester 4a, 4b.These measured values, the water quality treatment target value Ctarget_a of the water quality objective a that provides as water quality treatment target value 12a, 12b and the water quality treatment target value Ctarget_b of water quality objective b press the following formula operation.That is, satisfy the conditional of (7), (8).
C
10 a×(1-f
Aa(x
A))×(1-f
Ba(x
B))＜C
target_a …(7)
C
10 b×(1-g
Ba(x
A))×(1-g
Bb(x
B))＜C
target_b …(8)
Suitably the felicity condition calculation formula that has in the operation amount calculation apparatus 13 by satisfying the restriction condition of formula (7) and formula (8), minimizes the running cost of formula (9).
T
cost＝h
A(x
A)+h
B(x
B) …(9)
Obtain running cost Tcost and reach minimum (x
A, x
B) combination mathematical problem be described as follows.Function h
A(x
A) be the running cost function of sterilization effective constituents A 18, h
B(x
B) be the running cost function of sterilization effective constituent B19.
The method of calculation of separating of formula (9), for example, the non-linearity plan law or steepest descent method etc. are suitable for.Yet parameter is x only
AAnd x
B2, the span of these parameters is narrow, and must carry out millisecond or the High-speed Control of second, so as the most reliable calculation method, it is suitable adopting the total amount method.Here only enumerate an example, but also no problem of the calculation method that adopts other.
The effective constituents A of sterilization shown in Fig. 3 is an ozone, the mode chart of the running cost function when sterilization effective constituent B is the chlorine agent.Along with the increase of chlorine agent injection rate, the roughly proportional increase of running cost.Along with the increase of ozone injection rate, running cost also increases.But when adopting ozone, even injection rate reduces, running cost does not descend yet.
In ozonize portion, generally adopt diffuser to make ozone gas aeration, dissolving in the inflow water of sterilization effective constituents A reacting part 5.When the diffusing gas air capacity of diffuser after a little while, the problem of the inhomogeneous and obstruction of the gas that takes place to loose etc.Therefore, there is minimum air output.So, when the ozone injection rate is low, though the necessary electric power of discharge that is used to ozone takes place near 0, but that the electric power of gas blower must reach is a certain amount of, produces the lower value of running cost.
Can obtain x like this
AAnd x
BValue.Practical situation are, flow in the water 3 to contain various materials, and the concentration of these materials changes in time, and the value through type (5) of water quality treatment information 11a, 11b is different with the value of (6) calculating.At this moment, utilize the value of water quality treatment information 11, the x that the method for using is obtained
AAnd x
BValue revised.Below introduce the simplest modification method.
Employing is surveyed treating water information 11a, the 11b that device 9a, 9b mensuration obtains with handling water quality analyser respectively at water quality project a, water quality project b.Set coliform existence number as water quality project a, when setting colourity,, can adopt coliform transmitter and colourimeter respectively as water quality treatment tester 9a, 9b as water quality project b.
What water quality project a related to is, calculates the poor of value that concentration that through type (5) sets and actual water quality treatment information 11a provide, with it as Δ Ca.Equally, water quality project b is obtained Δ Cb.Then, the Ca Δ Ca adds formula (7) calculates new target value Ctarget_a '.Equally, calculate Ctarget_b '.The right of these new target value Ctarget_a ', Ctarget_b ' substitution formula (7) and (8) formula, obtain (x once again
A, x
B) best of breed.Thus, can revise transportation load.
As other modification methods, according to inflow water quality information 10a, the 10b, (x of sterilization effective constituents A reacting part 5
A, x
B) combination, and water quality treatment information 11a, 11b itself suitably revise also passable to clearance computing function shown in Figure 2.
According to the aforementioned calculation method, can obtain the optimum operation operational ton of sterilization effective constituents A 18 and sterilization effective constituent B19.As its result, operation amount 14 is supplied with sterilizing function possess device A16, operation amount 15 is supplied with sterilizing function possess device B17.Along with the operation amount 14 that gives, sterilizing function is possessed device A16, and sterilization effective constituents A 18 is supplied with sterilization effective constituents A reacting part 5.Equally, along with the operation amount 15 that gives, sterilizing function is possessed device B17, and sterilization effective constituent B19 is supplied with sterilization effective constituent B reacting part 7.
In the present embodiment, treatment system is as 1 system, and a plurality of treatment systems are set up in parallel, and to the structure that sterilization effective constituents A and sterilization effective constituent B inject in each system, also can seek minimizing of disinfection cost equally with present embodiment.
As implied above, in the 1st embodiment, satisfy water quality treatment target value 12a, 12b and running cost and reach minimized many sterilizing functions and possess the optimum operation of the middle water manufacturing process of device and become possibility by adopting optimum operation operational ton calculation apparatus 13, make to have.In addition, the various medicaments input rate that the processing of each water quality benchmark project relates to, set by the treatment effect function respectively, various in prerequisite in the water purposes by adding the treatment effect function, becoming on the water quality such as generation of disinfection byproduct (DBP) of problem problem in middle water various uses can avoid.
(the 2nd embodiment)
Fig. 4 is the operation scheme pie graph that adopts the following water treatment operation of the present invention's the 2nd embodiment.In the present embodiment, the mensuration of water quality project a is not directly carried out, and implements with indirect replacement assay method.That is, the replacement as water quality project a in treating water 8 is measured, and water quality project a water quality treatment is set replaces index tester 30.In addition, flow into the water quality of the inflow water 3 of sterilization effective constituents A reacting part 5,, measure by flowing into water quality tester 4b only at water quality project b.In addition, the water quality of the water quality project b of the inflow water 6 of sterilization effective constituent B reacting part 7 is measured by water quality treatment tester 9c.
For example, ozone as the sterilization effective constituents A, chlorine agent as sterilization effective constituent B, when water quality project a is a coliform existence number, when water quality project b is colourity, as the water quality treatment replacement index tester 30 of water quality project a, if adopt the residual chlorine meter, can estimate the not level of activity of coliform, obtain by replacing measuring.In addition, as water quality treatment tester 9c, can adopt colourimeter.
At this moment, the removal performance of water quality project b is represented with above-mentioned formula (4).On the other hand, the treating water that replaces index tester 30 to obtain of the water quality treatment by water quality project a replaces indication information 40 (concentration of residual chlorine is C
8R), (colourity is C to the water quality treatment information 11c that obtains by water quality treatment tester 9c
6B) and as the chlorine agent input rate x of sterilization effective constituent B
BRelation, represent with following formula.
C
8 r＝p(C
6 b，x
B) …(10)
Fig. 5 be sterilization effective constituent B when being the chlorine agent input rate and the concentration of residual chlorine C for the treatment of water
8The mode chart of the relation of r.Among the figure, (1) line is that chlorine demand is 0 water, and (2) line is the water with certain chlorine demand, and (3) line is the water of ammoniation or organic nitrogen compound.These relations have as the function with formula (10) expression at optimum operation operational ton calculation apparatus 13.
The conditional of using as middle water that must satisfy is formula (7) at the colourity of water quality project b.On the other hand, water quality project a is owing to replace mensuration with residual chlorine, so conditional is different with the situation of embodiment 1, because to guarantee that certain above concentration is condition, so become formula (11).
p(C
6 b，x
B)＞C
target_r …(11)
Also have, the top condition calculation formula that must have in the optimum operation operational ton calculation apparatus 13 and the method for calculation of optimum value are identical with the 1st embodiment.
According to the 2nd embodiment, carry out the water quality project by the replacement mensuration of water quality benchmark and measure, can satisfy the target value for the treatment of water, and make the related running cost summation of injection of sterilization effective constituent can reach minimum.
(the 3rd embodiment)
Fig. 6 is the operation scheme pie graph that adopts the middle water manufacturing process of the present invention's the 3rd embodiment.In the present embodiment, illustrating as the sterilization effective constituents A is ozone, and B is the water that contains trickle air bubble as sterilization effective constituent, as the coliform existence number of water quality project a, the example when being colourity as water quality project b.
In the 2nd embodiment, use residual cl concn as the evaluation index of the coliform of water quality project a existence number.In the present embodiment, use the colourity of water quality project b, also evaluating water quality project a.Have water quality treatment tester 9b and 9c, any in the present embodiment colourimeter that can be used as.
As water quality treatment target value 12a, can provide coliform residual rate target value.Here, so-called coliform residual rate means the coliform group count in the treating water of sterilization effective constituents A reacting part 5 or sterilization effective constituent B reacting part 7, removes resulting value with the coliform group count in the outflow water that is contained in reacting part respectively.
The oxidizing power of the OH free radical that is generated by ozone or trickle air bubble is extremely strong, thus the sterilization of the oxidation of chromatic(ity)component and coliform can the while parallel carrying out.Therefore, can calculate the instrumentation value and the coliform residual rate of colourity reduction.The most simple calculation formula is that the colourity residual rate reaches with the coliform residual rate and equates.
(colourity is C to inflow water quality tester 4b in the inflow water 3 of employing sterilization effective constituents A reacting part 5
10B) (colourity is C with the water quality treatment information 11c that obtains with processing water quality analyser survey device 9c
6B), obtain colourity residual rate R according to following formula
CA
R
cA＝C
6 b/C
10 b …(12)
Equally, (colourity is C to the water quality treatment information 11c that adopts water quality treatment tester 9c to obtain
6B), (colourity is C to the water quality treatment information 11b that adopts water quality treatment tester 9b to obtain
8B), obtain colourity residual rate R according to following formula
CB
R
cb＝C
8 b/C
6 b …(13)
Coliform residual rate target value is assumed to Ra
0, when actual coliform residual rate is assumed to Ra, colourity residual rate R
CA, R
CB, can form formula (14) from above-mentioned supposition.
R
cA×R
cB＝R
a＜R
a0 …(14)
Therefore,, calculate with the same running cost of other embodiments and reach minimum operational conditions, the control injection rate with under the condition of formula (14) with the removal performance of the water quality project b of formula (4) expression.
According to the 3rd embodiment, by adopting the water that contains trickle air bubble, can satisfy the target value for the treatment of water, and make the related running cost summation of injection of sterilization effective constituent can reach minimum at sterilization effective constituent B.
Claims (10)
1. middle water making device, this device are to have many in the following outlet of water treatment operation to have the control device that sterilizing function is possessed water manufacturing process in device and the control, and following water make as former water in the device of water; It is characterized in that, above-mentioned control device, has the water quality information that sterilizing function is possessed the treating water of device outlet that has that sterilizing function is possessed the inflow water of device portal and downstream side according to upstream side, calculating is satisfied predefined water quality treatment target value and is made the above-mentioned optimum value that overall operation cost summation that sterilizing function possesses device reaches minimum operation amount that has, according to this optimum value, control above-mentioned device respectively with sterilizing function.
2. according to the middle water making device of record in the claim 1, it is characterized in that above-mentioned water quality treatment target value is a plurality of, measure the water quality information corresponding with this water quality objective value.
3. according to the middle water making device of putting down in writing in the claim 2, it is characterized in that, each effect composition input rate of possessing device according to a plurality of water quality informations and above-mentioned a plurality of sterilizing function of above-mentioned inflow water, calculate the water quality information of each water quality objective of above-mentioned treating water, the water quality information of this calculating satisfies above-mentioned water quality treatment target value.
4. according to the middle water making device of record in the claim 3, it is characterized in that, obtain water quality information poor of the water quality information of calculating of above-mentioned treating water and mensuration, add this difference and revise above-mentioned water quality treatment target value.
5. according to the middle water making device of record in the claim 1, it is characterized in that above-mentioned optimum value is to calculate according to treatment effect table that has in advance or the treatment effect function that has in advance.
6. according to the middle water making device of putting down in writing in the claim 1, wherein, be that to possess device by the sterilizing function of above-mentioned upstream side be the ozone injection device, it is that chlorine agent injection device or the water injecting device that contains trickle air bubble constitute that the sterilizing function of above-mentioned downstream side is possessed device, and other water quality information of the branch of above-mentioned inflow water and above-mentioned treating water is colibacillary existence number and colourity.
7. according to the middle water making device of putting down in writing in the claim 1, it is characterized in that, above-mentioned a plurality of sterilizing function is possessed the group of device, by the side by side configuration and constituting of different water quality treatment, satisfy condition, and the summation of control overall operation cost is a minimum value corresponding to the water quality treatment target value of water purposes in a plurality of.
8. middle water making device, this device has the ozonize portion in the outlet of following water treatment operation, be positioned at the chlorine agent handling part of its downstream side, the control device of water manufacturing process in the control, it is the device of water during following water is made as former water, it is characterized in that, above-mentioned control device, according to the inflow water of above-mentioned ozonize portion and flow out the colourity of water and the colourity of the treating water of above-mentioned chlorine agent handling part and the water quality information of concentration of residual chlorine, the condition of predefined treating water colourity target value and treating water residual chlorine target value is satisfied in calculating, and the overall operation cost summation that makes ozone injection device and chlorine agent injection device reaches the optimum value of the operation amount of minimum ozone injection device operation amount and chlorine agent injection device, according to this optimum value, control ozone input rate and chlorine agent input rate.
9. middle water making device, this device has the ozonize portion in the outlet of following water treatment operation, be positioned at the water treatment portion that contains trickle air bubble of its downstream side, the control device of water manufacturing process in the control, it is the device of water during following water is made as former water, it is characterized in that, have: the 1st colourity tester of colourity of measuring the inflow water of above-mentioned ozonize portion, measure the 2nd colourity tester of colourity of the inflow water of the above-mentioned water treatment portion that contains trickle air bubble, and measure the 3rd colourity tester of colourity of the inflow water of the above-mentioned water treatment portion that contains trickle air bubble;
Above-mentioned control device is based on the water quality information of above-mentioned the 1st colourity tester, the 2nd colourity tester and the 3rd colourity tester, the condition of predefined treating water colibacillus target value and treating water colourity target value is satisfied in calculating, and make ozone injection device and the overall operation cost summation that contains the water injecting device of trickle air bubble reach the operation amount and the operation amount optimum value that contains trickle bubble water device of the ozone injection device of minimum, according to this optimum value, control ozone input rate and contain the water input rate of trickle air bubble.
10. middle water manufacture method, this method is the middle water manufacture method of water in making as former water from the following water of following water treatment operation, it is characterized in that, possess the inflow water of device and flow out the water quality information that the 2nd sterilizing function is possessed the treating water of device at the 1st sterilizing function of the outlet configured in series of following water treatment operation based on inflow, calculating is satisfied predefined water quality treatment target value and is made above-mentioned overall operation cost summation with device of sterilizing function reach the optimum value of the operation amount of minimum, according to this optimum value, control above-mentioned sterilization respectively and possess functional device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005037593 | 2005-02-15 | ||
| JP2005-037593 | 2005-02-15 | ||
| JP2005037593A JP2006223935A (en) | 2005-02-15 | 2005-02-15 | Apparatus and method for producing reusable water |
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| Publication Number | Publication Date |
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| CN1821118A true CN1821118A (en) | 2006-08-23 |
| CN100422094C CN100422094C (en) | 2008-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100063701A Expired - Fee Related CN100422094C (en) | 2005-02-15 | 2006-01-17 | Grey water producing device and method |
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| Country | Link |
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| JP (1) | JP2006223935A (en) |
| CN (1) | CN100422094C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4168068B2 (en) * | 2006-09-25 | 2008-10-22 | シャープ株式会社 | Micro-nano bubble-containing liquid manufacturing method, micro-nano-bubble-containing liquid manufacturing apparatus, and micro-nano-bubble-containing liquid application apparatus |
| JP5142895B2 (en) * | 2008-09-09 | 2013-02-13 | 株式会社日立製作所 | Liquid processing equipment |
| JP5686465B2 (en) * | 2010-08-26 | 2015-03-18 | 株式会社タクマ | Water treatment method and water treatment system using the same |
| JP5612005B2 (en) * | 2012-03-12 | 2014-10-22 | 株式会社東芝 | Water treatment system and water treatment method |
| JP5518248B1 (en) * | 2013-12-05 | 2014-06-11 | 三菱重工業株式会社 | Circulating water utilization system salt concentration adjustment device, circulating water utilization system |
| JP5563142B1 (en) | 2013-12-05 | 2014-07-30 | 三菱重工業株式会社 | Circulating water utilization system |
| JP5518245B1 (en) | 2013-12-05 | 2014-06-11 | 三菱重工業株式会社 | Remote monitoring method and system for circulating water utilization system group |
| JP5512032B1 (en) | 2013-12-05 | 2014-06-04 | 三菱重工業株式会社 | Circulating water usage system charging device, circulating water usage system |
| JP5567199B1 (en) | 2013-12-05 | 2014-08-06 | 三菱重工業株式会社 | Circulating water utilization system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3321876B2 (en) * | 1993-03-08 | 2002-09-09 | 株式会社明電舎 | Ozone treatment apparatus, ozone treatment method, and water purification treatment method |
| JPH06304546A (en) * | 1993-04-21 | 1994-11-01 | Hitachi Ltd | Operation controller for waterwork plant |
| JPH07204671A (en) * | 1994-01-14 | 1995-08-08 | Meidensha Corp | Method for controlling recycle system of sewage by ozone treatment |
| JP3184948B2 (en) * | 1994-12-14 | 2001-07-09 | 株式会社日立製作所 | Ozone injection control method and device |
| JP3712110B2 (en) * | 2000-11-06 | 2005-11-02 | 東京都 | Purification method of sewage secondary treated water |
| JP2003245653A (en) * | 2002-02-25 | 2003-09-02 | Kurita Water Ind Ltd | Operation supporting method for treatment system, operation supporting method for water treatment system and equipment therefor |
| JP4110822B2 (en) * | 2002-04-23 | 2008-07-02 | 株式会社安川電機 | Water treatment method and apparatus |
| CN2656402Y (en) * | 2002-06-26 | 2004-11-17 | 重庆燕事达科技发展有限公司 | Integrated computer controlled mid-water processing facilities |
| JP2004267865A (en) * | 2003-03-06 | 2004-09-30 | Hitachi Ltd | Support system of water treatment process |
| JP4367037B2 (en) * | 2003-07-18 | 2009-11-18 | 株式会社日立製作所 | Water quality information processing unit |
-
2005
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| JP2006223935A (en) | 2006-08-31 |
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