CN1958140A - Polynary control system for adding drugs automatically - Google Patents
Polynary control system for adding drugs automatically Download PDFInfo
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- CN1958140A CN1958140A CN 200610017236 CN200610017236A CN1958140A CN 1958140 A CN1958140 A CN 1958140A CN 200610017236 CN200610017236 CN 200610017236 CN 200610017236 A CN200610017236 A CN 200610017236A CN 1958140 A CN1958140 A CN 1958140A
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Abstract
A multi-element automatic chemical-adding control system for treating water features that the temp, turbidity and flow of raw water are acquired by various meters and then transmitted to central controller, where a mathematic model is used to calculate out control signals for controlling a chemical adding system.
Description
Technical field
The invention belongs to water-treatment technology field, particularly relate to the administration apparatus system that uses in a kind of water treatment technology.
Background technology
At present, the automatic control system of water treatment agent also concentrates on to add automatically with coagulant and is controlled to be the master, and its major control method has: simulation sedimentation basin method, streaming current method.Be applied to the problem that there is following shortcoming and is difficult to solve in the actual engineering operation:
SCD streaming current method in 1 traditional automatic medicament feeding system since decision to add what water-quality constituents factor of dose perfect in theory not enough, variation all has a significant impact SCD as parameters such as raw water turbidity, temperature, pH, pollution factor and non-colloidal solid disturbing factors, and in SCD feedback regulation method, only adopted the parameter zeta potential of reflection water-borne glue body stability to represent whole water quality factors, so this control method and actual not in full conformity with producing.
2 simultaneously, sensor slit Xiao Yi results in blockage, be difficult for forming the wadding grain after the dosing, particularly after reaction and change of water quality are bigger to the SCD influence, cause this method applicability relatively poor, the degree of accuracy is not enough, does not reach the requirement of optimizing Automatic Dosing, and uncontrollable especially to adding of organic anion high polymer coagulant.In the system that has, though adopted intellectual technology such as methods such as expert system, self study fuzzy control, obtained certain effect, do not solve the problem that adds the dose optimal control fully.
3 simulation sedimentation basin methods are because the big time-delay of water treatment system and can't respond the variation that adds dose rapidly, and are difficult to set up the control model that adapts to change of water quality, and control deviation is bigger during simultaneously with the combining of process equipment, and precision is relatively poor.
4 present control system for adding drugs are relatively poor to the adaptability of medicament, do not take into full account the characteristic of medicament, can not with the process equipment perfect adaptation, can not do before the water that modified control and flocculation aid are auxiliary to add control, the dosing control of special water quality (as low temperature, low turbid etc.) is had no idea.
The applied Automatic Dosing equipment of 5 present actual engineerings operating efficiency is lower, the medicament waste is serious, fails to accomplish that the best of medicament adds control, is difficult to adapt to water yield variation engineering operation greatly, when the water yield has bigger variation, change dosage and change hysteresis.
The tradition medicine system is difficult to realize the detection constantly of system handles effect, when the result floats within the specific limits after processing, is difficult to each medicine system dosage is finely tuned, and makes various medicaments form bigger waste.
Summary of the invention
The objective of the invention is:
A kind of polynary control system for adding drugs automatically is provided, and it feeds back former water information by the monitoring constantly of various instrumentations to water quality index, corresponding calculated with mathematical model in central controller, analog signal exports medicine machine to, makes various added amount of chemical reach optimum range, guarantees effluent quality.
Technical scheme of the present invention is:
By various instrumentations, gather signals such as former coolant-temperature gage, turbidity, flow, be sent to master controller, provide control signal by the calculated with mathematical model in the controller, the control medicine system realizes adding-reagent automation.
Flowmeter is connected with the flow input port of central processing unit, the PH meter is connected with the PH input port of central processing unit, transmissometer is connected with the turbidity input port of central processing unit, the COD instrument is connected with the COD instrument input port of central processing unit, and temperature sensor is connected with the temperature input port of central processing unit.
Central processing unit adjusting material output control terminal mouth is regulated dosing system by the adjusting material frequency converter with PH and is connected, central processing unit coagulant output control terminal mouth is connected with the coagulant dosage system by the coagulant frequency converter, and central processing unit flocculation aid output control terminal mouth is connected with the flocculation aid dosing system by the flocculation aid frequency converter.
Man-machine interface is connected to the Rs232 port of central processing unit.
Its circuit partly is made up of D/A control section, data store branch, A/D collecting part, relay control, discharge circuit:
The D/A control section: conversion chip D/A module D0-D7 connects the D0-D7 of central processing unit controller CPU, and CS0 connects the CPU28 pin, and WR1, WR2 connect 29 pin of CPU, and 19 pin, 20 pin and 8 pin connect power supply.11 pin, 12 pin connect 2 pin, 3 pin of amplifier G3:A, 3 pin ground connection, and 1 pin of amplifier G3:A is through 6 pin and the resistance R 7 of resistance R 0 connection amplifier G3:B, and 5 pin of amplifier G3:B link to each other with ground through resistance R 9, and R7 is connected with 7 pin of amplifier G3:B.
Data store branch: A8 connects central processing unit controller CPU 38 pin, and A9 connects the CPU37 pin, and A10 connects the CPU36 pin, and A11 connects the CPU35 pin, and A12 connects the CPU26 pin, and A13 connects the CPU27 pin.22 pin of memory U03 connect 21 pin of CPU, and 1 pin, 27 pin connect power supply.D0-D7 connects the D0-D7 of A/D.
The Q0-Q7 of the storage U2 of A0-A7 link address institute of memory U03, the D0-D7 of the storage U2 of address institute connects the A8-A15 of CPU, 1 pin ground connection, 11 pin connect the CPU25 pin.
The A/D collecting part: A/D module I N0-IN7 connects field instrument, and the D0-D7 pin meets the D0-D7 of memory U03, and D0-D2 meets the D0-D2 of CPU.
The ALE of A/D connects 1 pin of conversion chip U11:A, and 2 pin of U11:A, 3 pin connect 29 pin, 24 pin of CPU.
9 pin of A/D connect 4 pin of conversion chip U11:B, and 5 pin of U11:B, 6 pin connect 32 pin, 24 pin of CPU.The 16 pin ground connection of AD, 12 pin connect power supply.
Relay control section: P1.0-P1.7, P3.3 connect 9-16 pin (AD0-AD7) and 18 pin of CPU, and P1.0 connects 1 pin with door chip U6, and through 1 pin of 2 pin to NAND gate chip U7, its 16 pin of process is to 1BH.
P1.1 connects 3 pin with door chip U6, and through 2 pin of 4 pin to NAND gate chip U7, its 15 pin of process is to 2BH.
P1.2 connects 5 pin with door chip U6, and through 3 pin of 6 pin to NAND gate chip U7, its 14 pin of process is to 3BH.
P1.3 connects 9 pin with door chip U6, through 4 pin of 8 pin to NAND gate chip U7, connects resistance R 10 through its 13 pin and connects WSD again.
P1.4 connects 1 pin with door chip U6, through 1 pin of 2 pin to NAND gate chip U7, connects resistance R 1 through its 16 pin and connects 1HD again.
P1.5 connects 3 pin with door chip U6, through 2 pin of 4 pin to NAND gate chip U7, connects resistance R 2 through its 15 pin and connects 2HD again.
P1.6 connects 5 pin with door chip U6, through 3 pin of 6 pin to NAND gate chip U7, connects resistance R 4 through its 14 pin and connects 3HD again.
P1.7 connects 9 pin with door chip U6, through 4 pin of 8 pin to NAND gate chip U7, connects resistance R 5 through its 13 pin and connects BPD again.
P3.3 connects 11 pin with door chip U6, through 5 pin of 10 pin to NAND gate chip U7, connects resistance R 6 through its 12 pin and connects CYD again.
Discharge circuit part: SR enters ground through resistance R 18,3 pin of while entering signal Processing Interface amplifier G2:A, and 4 pin of amplifier G2:A connect power supply, 11 pin ground connection, 1 is connected with 2 pin, enters 10 pin of amplifier G2:C through R11,9 pin of amplifier G2:C and 8 pin short circuits, 8 pin meet IN1 and R13.
RV1 one termination power one end ground connection, the centre is connected with 12 pin of amplifier G1:D, and 13 pin of amplifier G2:D are connected with 14 pin, 11 pin ground connection, 14 pin connect R12, connect RV2 again and are connected 5 pin that enter amplifier G2:B with R13,6 pin of amplifier G2:B are connected with 7 pin, and 7 pin connect SPOUT.
BRIGE enters ground through resistance R 17, enters 3 pin of amplifier G1:A simultaneously, and 4 pin of amplifier G1:A connect power supply, 11 pin ground connection, and 1 is connected with 2 pin, passes through 10 pin that R14 enters amplifier G1:C, 9 pin of amplifier G1:C and 8 short circuits, 8 pin meet IN0 and R16.
RV3 one termination power one end ground connection, the centre is connected with 12 pin of amplifier G1:D, and 13 pin of amplifier G1:D are connected with 14 pin, and 14 pin connect R15, connect RV4 again and are connected 5 pin that enter amplifier G1:B with R16, and 6 pin of amplifier G1:B are connected with 7 pin, and 7 pin connect POUT.
The invention has the beneficial effects as follows:
1, abundant multi-parameter water quality processing Mathematical Modeling can adapt to the water quality and quantity variation widely in the central computing facility, simultaneously according to practical operation situation, has parameter resetting function flexibly.
2, parameter acquisition, feedback, output system, water quality parameter model treatment system, control system for adding drugs model, three part main programs are provided with respectively in central computer system, the logic error of having avoided complexity of calculation to produce, and system is stable.Prevent systemic breakdown.
3, the parameter sampling equipment can be accurately, feedback processing water quality signal in early stage fast, regulate medicine system, each medicament is added be in optimum state, make medicament give full play to reaction, thereby save the dosage of medicament.
4, this polynary control system for adding drugs can adapt to the various medicaments of water treatment widely, and can accurately regulate dose and add according to the actual treatment situation, accomplishes accurate control, saves adding of medicament to greatest extent, saves operating cost.
5, the present invention adds nonlinear mathematical model control technologys such as having adopted match, self adaptation in the control at medicament, has to be swift in response the advantage that the disturbance rejection ability is strong.
6, present technique equipment can carry out parameter detecting by rearmounted parameter detecting sensor, and feedback signal after the central computer system program is calculated, is exported medicament and added the control appliance fine adjustment signal simultaneously, makes added amount of chemical more accurate, prevents the medicament loss.
7, present technique equipment can adapt to various water treatment technologies, adapts to the multiple water treatment medicament, reaches expection control treatment effect.
8, according to the actual requirement of engineering, system equipment can be realized unmanned, saves human resources, accomplishes economical operation, also manual setting operation.
Description of drawings
Fig. 1 is a system block diagram of the present invention;
Fig. 2 is a D/A control section circuit diagram of the present invention;
Fig. 3 is data store parallel circuit figure of the present invention;
Fig. 4 is an A/D collecting part circuit diagram of the present invention;
Fig. 5 is control relay circuit figure of the present invention;
Fig. 6 is discharge circuit partial circuit figure of the present invention;
Fig. 7 is a power unit circuit diagram of the present invention;
The specific embodiment
Role in control system according to water quality parameter is set up mathematical control model:
1, the standard 4-20mA current signal by the output of online PH meter is in central processor equipment, if having modified function on the water treatment technology, then the frequency conversion dosage of central processor equipment output 0-10V or 4-20mA signal controlling adjusting material adds.If process equipment does not have modified function, then the dosage of the 4-20mA signal participation coagulant of PH meter adds control.
2, according to the parameter of in-line meters such as raw water turbidity instrument, COD, PH meter, temperature collection and the standard 4-20mA signal of input central processor equipment, determine to add the unit consumption of dose by the Mathematical Modeling computing (utilization neutral net, match, self adaptation) of central processor equipment, standard 4-20mA signal by flowmeter collection and input central processor equipment, in central processor equipment, determine to add dose, output 0-10V or 4-20mA signal controlling frequency converter, the dosage of controlling the coagulant dosing pump by the speed regulating control of frequency converter adds.And the feedback that the 4-20mA signal by delivery turbidity is 80%-120% in the central processor equipment is given the output trim process.
3, when the processing special water quality needs flocculation aid to add, the dose that adds that adds according to coagulant is done in proportion, is added synchronously, wherein the flocculation aid during to low temperature adds in programming, done the particular module calculation process, by central processor equipment output 0-10V or 4-20mA signal controlling frequency converter, the dosage of being controlled flocculation aid by the Frequency Converter Control dosing pump adds.
Fig. 3, Fig. 4 are the single channel main control schematic diagram of coagulant, are made up of CPU, data acquisition A/D module, data output modular converter D/A etc.The analog signal of on-the-spot turbidity transducer, flow sensor is through filtering, amplifier, processing such as adjust.Be converted into binary code through A/ D pin 12 and 16 signals of gathering directly into the A/D module, the binary code that transforms advances middle memory via D0-D7, its control bit storage is by the CPU conducting, a secondary data is once stored in every conducting, enter the data of memory, entering CPU via CPU control handles, its inner process formula is obtained a result, the result is converted into binary code, directly export binary system control D/A module by CPU through D0-D7, enter the D/A module by control, the D/A module is according to the binary code that receives, be converted into corresponding analog signal by 11 according to range, 12 pin output voltage signals, voltage signal change the 4--20MA current value that needs into through translation circuit again, the operation of control frequency converter.By P1.0-P1.7 is relay control, the valve break-make at major control scene.
The operation running;
Polynary automatic medicament feeding system is installed in the water treatment control system for adding drugs, former water, water outlet index of correlation are carried out parameter detecting, feedback signal, computing, analog signal output, metering such as add at operation.
This system equipment is formed and can be divided into water quality parameter sampling equipment, central computing facility, medicament and add parts such as control appliance.Sampling equipment comprises parameter sampling detectors such as raw water flow, turbidity, temperature, PH, COD according to measuring requirement.
Central computing facility is made up of all kinds of digital intelligent chips, nervous network, PAC controller, industrial computer etc., and intrinsic multi-parameter influences water quality dosing Mathematical Modeling in the central control equipment.
It is that medicament adds required all kinds of adding equipments that dosing adds control system, and frequency conversion equipment can carry out the stroke variable frequency adjustment.
Sampling equipment can obtain former water water quality parameter constantly, and by sampling detector, the preposition parameter feedback signal of each water quality inputs to the control system central computing facility.Handle Mathematical Modeling according to system's central computing facility according to original multi-parameter water quality in the equipment, calculate each added amount of chemical result, analog signal is regulated in output constantly, enters medicament adding equipment control system, changes added amount of chemical by frequency converter or Fill argon clamping fixture.By the online turbidity signal feedback of water outlet, after system's central computing facility correction Mathematical Modeling, respective sensor is exported the revised flow fine adjustment signal of each medicament to the dosing control appliance, makes added amount of chemical more accurate simultaneously.Guarantee effluent quality, save pharmaceutical quantities.
Claims (3)
1, a kind of polynary control system for adding drugs automatically is characterized in that: by various instrumentations, gather signals such as former coolant-temperature gage, turbidity, flow, be sent to master controller, provide control signal by the calculated with mathematical model in the controller, the control medicine system realizes adding-reagent automation.
2, a kind of polynary control system for adding drugs automatically according to claim 1, it is characterized in that: flowmeter is connected with the flow input port of central processing unit, the PH meter is connected with the PH input port of central processing unit, transmissometer is connected with the turbidity input port of central processing unit, the COD instrument is connected with the COD instrument input port of central processing unit, and temperature sensor is connected with the temperature input port of central processing unit;
Central processing unit adjusting material output control terminal mouth is regulated dosing system by the adjusting material frequency converter with PH and is connected, central processing unit coagulant output control terminal mouth is connected with the coagulant dosage system by the coagulant frequency converter, and central processing unit flocculation aid output control terminal mouth is connected with the flocculation aid dosing system by the flocculation aid frequency converter.
3, a kind of polynary control system for adding drugs automatically according to claim 1 and 2 is characterized in that: circuit partly is made up of D/A control section, data store branch, A/D collecting part, relay control, discharge circuit:
The D/A control section, conversion chip D/A module D0-D7 connects the D0-D7 of central processing unit controller CPU, and CS0 connects the CPU28 pin, and WR1, WR2 connect 29 pin of CPU, and 19 pin, 20 pin and 8 pin connect power supply; 11 pin, 12 pin connect 2 pin, 3 pin of amplifier G3:A, 3 pin ground connection, and 1 pin of amplifier G3:A is through 6 pin and the resistance R 7 of resistance R 0 connection amplifier G3:B, and 5 pin of amplifier G3:B link to each other with ground through resistance R 9, and R7 is connected with 7 pin of amplifier G3:B;
Data store branch, A8 connect central processing unit controller CPU 38 pin, and A9 connects the CPU37 pin, and A10 connects the CPU36 pin, and A11 connects the CPU35 pin, and A12 connects the CPU26 pin, and A13 connects the CPU27 pin; 22 pin of memory U03 connect 21 pin of CPU, and 1 pin, 27 pin connect power supply; D0-D7 connects the D0-D7 of A/D;
The Q0-Q7 of the storage U2 of A0-A7 link address institute of memory U03, the D0-D7 of the storage U2 of address institute connects the A8-A15 of CPU, 1 pin ground connection, 11 pin connect the CPU25 pin;
The A/D collecting part, A/D module I N0-IN7 connects field instrument, and the D0-D7 pin meets the D0-D7 of memory U03, and D0-D2 meets the D0-D2 of CPU;
The ALE of A/D connects 1 pin of conversion chip U11:A, and 2 pin of U11:A, 3 pin connect 29 pin, 24 pin of CPU;
9 pin of A/D connect 4 pin of conversion chip U11:B, and 5 pin of U11:B, 6 pin connect 32 pin, 24 pin of CPU.The 16 pin ground connection of AD, 12 pin connect power supply;
The relay control section, P1.0-P1.7, P3.3 connect 9-16 pin (AD0-AD7) and 18 pin of CPU, and P1.0 connects 1 pin with door chip U6, and through 1 pin of 2 pin to NAND gate chip U7, its 16 pin of process is to 1BH;
P1.1 connects 3 pin with door chip U6, and through 2 pin of 4 pin to NAND gate chip U7, its 15 pin of process is to 2BH;
P1.2 connects 5 pin with door chip U6, and through 3 pin of 6 pin to NAND gate chip U7, its 14 pin of process is to 3BH;
P1.3 connects 9 pin with door chip U6, through 4 pin of 8 pin to NAND gate chip U7, connects resistance R 10 through its 13 pin and connects WSD again;
P1.4 connects 1 pin with door chip U6, through 1 pin of 2 pin to NAND gate chip U7, connects resistance R 1 through its 16 pin and connects 1HD again;
P1.5 connects 3 pin with door chip U6, through 2 pin of 4 pin to NAND gate chip U7, connects resistance R 2 through its 15 pin and connects 2HD again;
P1.6 connects 5 pin with door chip U6, through 3 pin of 6 pin to NAND gate chip U7, connects resistance R 4 through its 14 pin and connects 3HD again;
P1.7 connects 9 pin with door chip U6, through 4 pin of 8 pin to NAND gate chip U7, connects resistance R 5 through its 13 pin and connects BPD again;
P3.3 connects 11 pin with door chip U6, through 5 pin of 10 pin to NAND gate chip U7, connects resistance R 6 through its 12 pin and connects CYD again;
The discharge circuit part, SR enters ground through resistance R 18, simultaneously 3 pin of entering signal Processing Interface amplifier G2:A, 4 pin of amplifier G2:A connect power supply, 11 pin ground connection, and 1 is connected with 2 pin, process R11 enters 10 pin of amplifier G2:C, 9 pin of amplifier G2:C and 8 pin short circuits, and 8 pin meet IN1 and R13;
RV1 one termination power one end ground connection, the centre is connected with 12 pin of amplifier G1:D, and 13 pin of amplifier G2:D are connected with 14 pin, 11 pin ground connection, 14 pin connect R12, connect RV2 again and are connected 5 pin that enter amplifier G2:B with R13,6 pin of amplifier G2:B are connected with 7 pin, and 7 pin connect SPOUT;
BRIGE enters ground through resistance R 17, enters 3 pin of amplifier G1:A simultaneously, and 4 pin of amplifier G1:A connect power supply, 11 pin ground connection, and 1 is connected with 2 pin, passes through 10 pin that R14 enters amplifier G1:C, 9 pin of amplifier G1:C and 8 short circuits, 8 pin meet IN0 and R16;
RV3 one termination power one end ground connection, the centre is connected with 12 pin of amplifier G1:D, and 13 pin of amplifier G1:D are connected with 14 pin, and 14 pin connect R15, connect RV4 again and are connected 5 pin that enter amplifier G1:B with R16, and 6 pin of amplifier G1:B are connected with 7 pin, and 7 pin connect POUT.
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| CN 200610017236 CN1958140A (en) | 2006-10-11 | 2006-10-11 | Polynary control system for adding drugs automatically |
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| CN 200610017236 CN1958140A (en) | 2006-10-11 | 2006-10-11 | Polynary control system for adding drugs automatically |
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| CN102115251A (en) * | 2010-11-24 | 2011-07-06 | 中国石油天然气股份有限公司吉林石化分公司 | Method for controlling pH value of process water system for ethylene device |
| CN102531121A (en) * | 2012-02-28 | 2012-07-04 | 天津大学 | Optimum input forecast system of water treatment coagulant and forecast method |
| CN103011082A (en) * | 2012-12-26 | 2013-04-03 | 宝钢工程技术集团有限公司 | Automatic dosing method and device for hydrochloric acid regeneration desilication flocculant |
| CN103601342A (en) * | 2013-11-25 | 2014-02-26 | 清华大学 | Optimization control device for chemical phosphorus removal process |
| CN103723779A (en) * | 2012-10-16 | 2014-04-16 | 东丽先端材料研究开发（中国）有限公司 | Fenton reaction system capable of controlling medicament feeding |
| CN103768836A (en) * | 2014-01-23 | 2014-05-07 | 山西东方创赢环保科技有限公司 | High-turbidity water adjusting-precipitating treatment system |
| CN104529009A (en) * | 2014-12-31 | 2015-04-22 | 苏州工业职业技术学院 | Automatic waste water treatment system and technology |
| CN105461160A (en) * | 2015-11-19 | 2016-04-06 | 威海汉邦生物环保科技有限公司 | A deep-treatment device for papermaking wastewater |
| CN107473361A (en) * | 2016-06-07 | 2017-12-15 | 中国石油化工股份有限公司 | Fenton reagent oxidized waste water processing method and processing device |
| CN107986351A (en) * | 2017-12-19 | 2018-05-04 | 陈洪芳 | A kind of sewage treatment plant adds medicinal robot |
| CN110411541A (en) * | 2011-01-21 | 2019-11-05 | 莱伯曼兹有限公司 | Automate solution dispenser |
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| CN111138004A (en) * | 2020-01-14 | 2020-05-12 | 山东省城市供排水水质监测中心 | Coagulant adding control system and method |
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| CN102115251A (en) * | 2010-11-24 | 2011-07-06 | 中国石油天然气股份有限公司吉林石化分公司 | Method for controlling pH value of process water system for ethylene device |
| CN110411541A (en) * | 2011-01-21 | 2019-11-05 | 莱伯曼兹有限公司 | Automate solution dispenser |
| CN102531121A (en) * | 2012-02-28 | 2012-07-04 | 天津大学 | Optimum input forecast system of water treatment coagulant and forecast method |
| CN103723779A (en) * | 2012-10-16 | 2014-04-16 | 东丽先端材料研究开发（中国）有限公司 | Fenton reaction system capable of controlling medicament feeding |
| CN103011082A (en) * | 2012-12-26 | 2013-04-03 | 宝钢工程技术集团有限公司 | Automatic dosing method and device for hydrochloric acid regeneration desilication flocculant |
| CN103011082B (en) * | 2012-12-26 | 2014-11-26 | 白东 | Automatic dosing method and device for hydrochloric acid regeneration desilication flocculant |
| CN103601342A (en) * | 2013-11-25 | 2014-02-26 | 清华大学 | Optimization control device for chemical phosphorus removal process |
| CN103768836A (en) * | 2014-01-23 | 2014-05-07 | 山西东方创赢环保科技有限公司 | High-turbidity water adjusting-precipitating treatment system |
| CN103768836B (en) * | 2014-01-23 | 2016-05-11 | 山西东方创赢环保科技有限公司 | A kind of ultra regulates precipitation process system |
| CN104529009A (en) * | 2014-12-31 | 2015-04-22 | 苏州工业职业技术学院 | Automatic waste water treatment system and technology |
| CN105461160A (en) * | 2015-11-19 | 2016-04-06 | 威海汉邦生物环保科技有限公司 | A deep-treatment device for papermaking wastewater |
| CN105461160B (en) * | 2015-11-19 | 2018-02-16 | 威海汉邦生物环保科技有限公司 | A kind of paper waste advanced treatment apparatus |
| CN107473361A (en) * | 2016-06-07 | 2017-12-15 | 中国石油化工股份有限公司 | Fenton reagent oxidized waste water processing method and processing device |
| CN107986351A (en) * | 2017-12-19 | 2018-05-04 | 陈洪芳 | A kind of sewage treatment plant adds medicinal robot |
| JP2019193916A (en) * | 2018-05-01 | 2019-11-07 | 株式会社東芝 | Coagulant injection control device, coagulant injection control method, and computer program |
| WO2019212004A1 (en) * | 2018-05-01 | 2019-11-07 | 株式会社東芝 | Flocculant injection control device, flocculant injection control method, and computer program |
| JP7179486B2 (en) | 2018-05-01 | 2022-11-29 | 株式会社東芝 | Coagulant injection control device, coagulant injection control method and computer program |
| CN111138004A (en) * | 2020-01-14 | 2020-05-12 | 山东省城市供排水水质监测中心 | Coagulant adding control system and method |
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