CN102381819A - Industrial wastewater treatment device - Google Patents
Industrial wastewater treatment device Download PDFInfo
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- CN102381819A CN102381819A CN2011103500532A CN201110350053A CN102381819A CN 102381819 A CN102381819 A CN 102381819A CN 2011103500532 A CN2011103500532 A CN 2011103500532A CN 201110350053 A CN201110350053 A CN 201110350053A CN 102381819 A CN102381819 A CN 102381819A
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Abstract
The invention relates to an industrial wastewater treatment device, which comprises a wastewater treatment system and a control system for controlling the wastewater treatment system, wherein the control system comprises a data acquisition unit and a programmable logic control (PLC) unit; the data acquisition unit is arranged in the wastewater treatment system; the signal output end of the data acquisition unit is connected with the signal input end of the PLC unit; and an output signal of the PLC unit controls and connects the wastewater treatment system. The PLC unit controls the wastewater treatment system, workers are not required to monitor and manage the industrial wastewater treatment device in field, wastewater treatment automation is realized, the operation management of the sewage treatment is simple and convenient, and sewage treated by the industrial wastewater treatment device reaches a standard stably.
Description
Technical field
The present invention relates to a kind of Industrial Wastewater Treatment device.
Background technology
At present, ammonia synthesizing industry all occupies an important position in Chinese national economy and even global economy.Ammonia synthesizing industry mainly is to supply raw materials for nitrogen fertilizer production; Soon the nitrogen element in the synthetic ammonia spins off and is used to make nitrogenous fertilizer; Afterwards remaining waste water is got rid of, yet in the industrial production of synthetic ammonia, be raw material synthetic ammonia with coal and Sweet natural gas mainly, the waste water that therefore in the process of producing nitrogenous fertilizer, produces contains the material that in a large number physical environment is had pollution; If the waste water of discharging only relies on the self-purification in river, lake to purify; Along with limited to the removal capacity of pollutent of the prolongation of time and environment, these waste water can make surface water anoxic, water quality deterioration, eutrophication, and tap water and process water resource are threatened; Therefore all to handle accordingly before in physical environment at discharge of wastewater, make waste water drop to minimum the harm of physical environment to waste water.At present generally adopt anoxic/aerobic (A/O) biochemical processing process to carry out denitrogenation to the processing of synthetic ammonia trade effluent, because the concentration of ammonia nitrogen is higher in the waste water, phosphorus concentration and C are lower than all; Generally need add carbon source, phosphorus and alkali, and variation water quality property is bigger in the actual motion, the steady load property of treatment system is relatively poor; The measure of control that add of nutritive element usually can not be in time and the water quality coupling; Process such as spoil disposal, aeration lacks effective control strategy, and draining can not stably reaching standard, and whole wastewater treatment process is accomplished by artificial on-the-spot supervision; The error that wherein exists is also very big; Above-mentioned reason all causes whole wastewater treatment equipment operational management complicated, and wastewater to reach standard is unstable, and problems such as running cost height occur.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can control wastewater treatment equipment automatically, the on-the-spot supervision of the personnel that need not, operational management is easy, processed waste water stable Industrial Wastewater Treatment device up to standard.
For achieving the above object, the present invention adopts following technical scheme:
A kind of Industrial Wastewater Treatment device; Comprise Waste Water Treatment and the system that is used to control Waste Water Treatment; Said system comprises data acquisition unit and PLC control unit; Said data acquisition unit is arranged in the Waste Water Treatment, and the signal output part of data acquisition unit connects the signal input part of PLC control unit, and the output signal control of PLC control unit connects Waste Water Treatment.
Said Waste Water Treatment comprises equalizing tank, carbon source hold-up vessel, A/O pond and settling tank; Said equalizing tank and carbon source hold-up vessel are respectively through pipe connection A/O pond; The A/O pond is through the pipe connection settling tank; The pipeline that said equalizing tank is connected with the A/O pond is provided with intake pump and water inlet pipe valve; The pipeline that the carbon source hold-up vessel is connected with the A/O pond is provided with carbon source fresh feed pump and carbon source valve, and the influent waste water signal output part of said PLC control unit is control linkage intake pump, water inlet control valve respectively, and the carbon source charging signal output part of PLC control unit is control linkage carbon source fresh feed pump and carbon source valve respectively.
Said Waste Water Treatment also comprises the nitrification liquid reflux line; The inlet of said nitrification liquid reflux line connects the outlet in A/O pond; Outlet connects the inlet of A/O; Described nitrification liquid reflux line is provided with nitrification liquid reflux pump and nitrification liquid recycle control valve, and the nitrification liquid backflow signal output part of said PLC control unit is control linkage nitrification liquid reflux pump and nitrification liquid control reverse flow valve respectively.
Said Waste Water Treatment also comprises sludge return pipe and excess sludge spoil disposal pipeline; The inlet of said sludge return pipe connects the outlet of settling tank; Outlet connects the inlet in A/O pond; Said sludge return pipe is provided with sludge reflux pump and mud recycle control valve, and the mud backflow signal output part of said PLC control unit is control linkage sludge reflux pump and mud recycle control valve respectively; The inlet of said excess sludge spoil disposal pipeline connects the outlet of settling tank, and said spoil disposal pipeline is provided with excess sludge spoil disposal valve, the output terminal control linkage excess sludge spoil disposal valve of the excess sludge spoil disposal signal of said PLC control unit.
Said Waste Water Treatment also comprises aerating pipelines; The inlet of said aerating pipelines connects air; Outlet is connected the Aerobic Pond in A/O pond with air diffuser through gas meter; Said aerating pipelines is provided with the aeration valve, and the aeration wave output terminal of said PLC control unit is control linkage air and aeration valve respectively.
Said data acquisition unit comprises online multiparameter detection module and online ammonia nitrogen detection module; Said online multiparameter detection module comprises and is used to detect sewage middle finger target detection probe, signal treatment circuit; Said detection probe is arranged in the equalizing tank and A/O pond of Waste Water Treatment; The signal output part of detection probe connects the signal input part of signal treatment circuit, and the signal output part of signal treatment circuit is used to connect the signal input part of PLC control unit; Said online ammonia nitrogen detection module comprises ammonia nitrogen sampling rod, reaction tank E, transmitter, control center and signaling conversion circuit; Said ammonia nitrogen sampling rod is used to connect equalizing tank and reaction tank E; Transmitter is arranged on the signal input part of the signal output part connection control center of reaction tank E inner sensor, and the wave output terminal of control center connects the signal input part of PLC control unit through signaling conversion circuit.
Said system also comprises man-machine interaction unit, and said man-machine interaction unit adopts PC, and said PLC control unit is connected with PC.
Adopt above technical scheme can reach following technique effect: because the present invention is provided with the PLC control unit; Work by the whole wastewater treatment equipment of PLC control unit intelligent control; Realized robotization, the processing that need not staff's field monitoring waste water just can be accomplished the processing to waste water, for the PLC control unit reliable data is provided by the data acquisition unit that is provided with simultaneously; Therefore the wastewater to reach standard after handling has been stablized a lot, has reduced running cost.
Description of drawings
Fig. 1 is a structure principle chart of the present invention;
Fig. 2 is the structural representation of Waste Water Treatment of the present invention.
Embodiment
As shown in Figure 1: as to the present invention includes Waste Water Treatment and the system that is used to control Waste Water Treatment; Said system comprises data acquisition unit, PLC control unit and man-machine interaction unit; Said data acquisition unit is arranged in the Waste Water Treatment; The signal output part of data acquisition unit connects the signal input part of PLC control unit, and the output signal control of PLC control unit connects Waste Water Treatment, and the PLC control unit also is connected with man-machine interaction unit.
Said data acquisition unit comprises online multiparameter detection module and online ammonia nitrogen detection module; Said online multiparameter detection module comprises and is used to detect sewage middle finger target detection probe (comprising pH value detection probe 45, DO value detection probe 46 and ORP value detection probe 47), signal treatment circuit; Said detection probe is arranged in the Waste Water Treatment; The signal output part of detection probe connects the signal input part of signal treatment circuit, and the signal output part of signal treatment circuit is used to connect the signal input part of PLC control unit; Said online ammonia nitrogen detection module comprises ammonia nitrogen sampling rod 44, reaction tank E, transmitter 1, control center and signaling conversion circuit; Said ammonia nitrogen sampling rod is used to connect Waste Water Treatment and reaction tank E; Transmitter 1 is arranged in the reaction tank E; The signal output part of transmitter 1 connects the signal input part of control center, and the wave output terminal of control center connects the signal input part of PLC control unit through signaling conversion circuit.
As shown in Figure 2: said Waste Water Treatment comprises equalizing tank A, carbon source hold-up vessel B, A/O pond C, settling tank D, nitrification liquid reflux line 30, sludge return pipe 37, excess sludge spoil disposal pipeline 38 and aerating pipelines 24; Equalizing tank D and carbon source hold-up vessel B are respectively through pipe connection A/O pond C; A/O pond C is through pipe connection settling tank D; The pipeline that said equalizing tank A is connected with A/O pond C is provided with intake pump 4 and water inlet pipe valve 3; The pipeline that carbon source hold-up vessel B is connected with A/O pond C is provided with carbon source fresh feed pump 8 and carbon source valve 7; The influent waste water signal output part of said PLC control unit is control linkage intake pump 4, water inlet control valve 3 respectively, and the carbon source charging signal output part of PLC control unit is control linkage carbon source fresh feed pump 8 and carbon source valve 7 respectively; The inlet of said nitrification liquid reflux line 30 connects the outlet in A/O pond; Outlet connects the inlet of A/O; Described nitrification liquid reflux line 30 is provided with nitrification liquid reflux pump 29 and nitrification liquid recycle control valve 28, and the nitrification liquid backflow signal output part of said PLC control unit is control linkage nitrification liquid reflux pump 29 and nitrification liquid control reverse flow valve 28 respectively; The inlet of said sludge return pipe 37 connects the outlet of settling tank D; Outlet connects the inlet of A/O pond C; Said sludge return pipe 37 is provided with sludge reflux pump 36 and mud recycle control valve 35, and the mud backflow signal output part of said PLC control unit is control linkage sludge reflux pump 36 and mud recycle control valve 35 respectively; The inlet of said excess sludge spoil disposal pipeline 38 connects the outlet of settling tank D; Said spoil disposal pipeline 38 is provided with excess sludge spoil disposal valve 39, the output terminal control linkage excess sludge spoil disposal valve of the excess sludge spoil disposal signal of said PLC control unit; The inlet of said aerating pipelines 24 connects air 23; Outlet connects air diffuser 27 through gas meter 26; Said air diffuser 27 is arranged on that (described Aerobic Pond comprises the first Aerobic Pond O1 to the, nine Aerobic Pond O9 in the Aerobic Pond of A/O pond C; Its label is respectively O1, O2, O3, O4, O5, O6, O7, O8, O9); Said aerating pipelines 24 is provided with aeration valve 25, and the aeration wave output terminal of said PLC control unit is control linkage air 23 and aeration valve 25 respectively.
When the present invention worked, the method for handling waste water comprised step:
(1) waste water gets in the first anoxic pond A1 through intake pump 4 from equalizing tank A; Simultaneously carbon source, the nitrification liquid that refluxes by the 9th Aerobic Pond O9 and in settling tank D, accomplish mud-water separation after remaining active sludge get into together in the first anoxic pond A1 of A/O pond C; The nitrification liquid that wherein refluxes and the volume ratio of waste water are 2:1, and the active sludge of backflow and the volume ratio of waste water are 1:1.Owing to get into and comprise the terminal nitrification liquid that refluxes in the first anoxic pond A1 by the 9th Aerobic Pond O9; A certain amount of dissolved oxygen (DO) that has carried in the described nitrification liquid; Therefore, heterotrophic bacterium can preferentially utilize a spot of dissolved oxygen degraded part easily biodegradable organics in the waste water.Simultaneously, the abundant organic carbon source that the denitrifying bacteria utilization flows in by carbon source hold-up vessel B in the first anoxic pond A1, the second anoxic pond A2 and the 3rd anoxic pond A3 is with the NO in former water, nitrification liquid and the returned sluge
2 --N and NO
3 --N is reduced to N
2, accomplish the removal of nitrogen;
(2) mixed solution entering Aerobic Pond after anoxic pond is accomplished denitrification carries out aerobic nitrification, and at first in the first Aerobic Pond O1, the second Aerobic Pond O2 and the 3rd Aerobic Pond O3, the degree of depth is removed organism remaining in the anoxic pond water outlet under the effect of heterotrophic bacterium; Secondly, in the first anoxic pond O1 to the, the nine anoxic pond O9 suspended state of autotrophy and be fixed on ammonia oxidation bacteria on the mobile vehicle with NH
4 +-N is an electron donor, and oxygen is electron acceptor(EA), with NH
4 +-N is oxidized to NO
2 --N; The nitrous acid oxidation bacterium of autotrophy is with NO in while the 7th Aerobic Pond O7 to the nine Aerobic Pond O9
2 --N is an electron donor, and oxygen is electron acceptor(EA), with part NO
2 --N is oxidized to NO
3 --N has realized the removal of ammonia nitrogen.Process air compressor 23 in reaction provides respiration needed oxygen through aerating pipelines 24, gas meter 26 and air diffuser 27 mikrobe in the first Aerobic Pond O1 to the, nine Aerobic Pond O9 ponds;
(3) after aerobic nitrification finished, under the effect of nitrification liquid reflux pump 29, partially mixed liquid was back in the first anoxic pond A1 through nitrification liquid reflux line 30 by the 9th Aerobic Pond O9 at nitrification liquid and carries out denitrification;
(4) mixed solution of accomplishing aerobic nitrification is from flowing into settling tank D; Settling tank D residence time 1-2h carries out mud-water separation, and supernatant goes out system through the direct overflow of rising pipe on settling tank D top then; The active sludge of bottom settlings is under the effect of sludge reflux pump 36; Be back in the first anoxic pond A1 through sludge return pipe 37, get back to step (1) then, continue waste water is handled.
The discharging of the backflow of the backflow of the adding of the discharging of waste water, carbon source, nitrification liquid, mud and excess sludge is in the present invention controlled completion automatically by the PLC control unit; Owing in equalizing tank A, be provided with pH value detection probe 45; Be provided with DO detection probe 46 and ORP detection probe 47 in the 9th Aerobic Pond O9 of A/O pond C; Can detect pH value, DO value and ORP value in the pending waste water, and send detected numerical value to the PLC control unit through signal treatment circuit; Ammonia nitrogen sampling rod 44 in the online ammonia nitrogen analytical system is taken a sample from equalizing tank A simultaneously; The waste water sample of getting is in reaction tank E and reactant reaction; The reaction back obtains the ammonia-nitrogen content signal in the water by transmitter 1; Described ammonia-nitrogen content signal sends control center to; Control center also sends the ammonia nitrogen signal to the PLC control unit through signaling conversion circuit, after the PLC control unit is analyzed all signal numerical value, and output wave control intake pump 4, water inlet control valve 3, carbon source fresh feed pump 8, carbon source valve 7, air 23, aeration valve 25, nitrification liquid reflux pump 29, nitrification liquid recycle control valve 28, sludge reflux pump 36 and mud recycle control valve 35; Be used to control the addition of various liquid material through control, make wastewater treatment more thorough above-mentioned each pump and by-pass valve control.The PLC control unit is connected with man-machine interaction unit simultaneously, therefore can on the image display of man-machine interaction unit, show the flow process of wastewater treatment, can also revise parameter through man-machine interaction unit, realizes the thorough processing of waste water.
Be respectively arranged with whisking appliance 22 among this external first anoxic pond A1, the second anoxic pond A2 and the 3rd anoxic pond A3, can make the contact area of waste water and reaction solution better like this, react more thorough, it is more thorough to make wastewater treatment get equally.
Claims (7)
1. Industrial Wastewater Treatment device; It is characterized in that: comprise Waste Water Treatment and the system that is used to control Waste Water Treatment; Said system comprises data acquisition unit and PLC control unit; Said data acquisition unit is arranged in the Waste Water Treatment, and the signal output part of data acquisition unit connects the signal input part of PLC control unit, and the output signal control of PLC control unit connects Waste Water Treatment.
2. Industrial Wastewater Treatment device as claimed in claim 1; It is characterized in that: said Waste Water Treatment comprises equalizing tank, carbon source hold-up vessel, A/O pond and settling tank; Said equalizing tank and carbon source hold-up vessel are respectively through pipe connection A/O pond; The A/O pond is through the pipe connection settling tank; The pipeline that said equalizing tank is connected with the A/O pond is provided with intake pump and water inlet pipe valve; The pipeline that the carbon source hold-up vessel is connected with the A/O pond is provided with carbon source fresh feed pump and carbon source valve, and the influent waste water signal output part of said PLC control unit is control linkage intake pump, water inlet control valve respectively, and the carbon source charging signal output part of PLC control unit is control linkage carbon source fresh feed pump and carbon source valve respectively.
3. Industrial Wastewater Treatment device as claimed in claim 2; It is characterized in that: said Waste Water Treatment also comprises the nitrification liquid reflux line; The inlet of said nitrification liquid reflux line connects the outlet in A/O pond; Outlet connects the inlet of A/O, and described nitrification liquid reflux line is provided with nitrification liquid reflux pump and nitrification liquid recycle control valve, and the nitrification liquid backflow signal output part of said PLC control unit is control linkage nitrification liquid reflux pump and nitrification liquid control reverse flow valve respectively.
4. Industrial Wastewater Treatment device as claimed in claim 3; It is characterized in that: said Waste Water Treatment also comprises sludge return pipe and excess sludge spoil disposal pipeline; The inlet of said sludge return pipe connects the outlet of settling tank; Outlet connects the inlet in A/O pond, and said sludge return pipe is provided with sludge reflux pump and mud recycle control valve, and the mud backflow signal output part of said PLC control unit is control linkage sludge reflux pump and mud recycle control valve respectively; The inlet of said excess sludge spoil disposal pipeline connects the outlet of settling tank, and said spoil disposal pipeline is provided with excess sludge spoil disposal valve, the output terminal control linkage excess sludge spoil disposal valve of the excess sludge spoil disposal signal of said PLC control unit.
5. Industrial Wastewater Treatment device as claimed in claim 4; It is characterized in that: said Waste Water Treatment also comprises aerating pipelines; The inlet of said aerating pipelines connects air; Gas meter is connected the A/O pond with air diffuser Aerobic Pond is passed through in outlet, and said aerating pipelines is provided with the aeration valve, and the aeration wave output terminal of said PLC control unit is control linkage air and aeration valve respectively.
6. like any described Industrial Wastewater Treatment device of claim 1 to 5; It is characterized in that: said data acquisition unit comprises online multiparameter detection module and online ammonia nitrogen detection module; Said online multiparameter detection module comprises and is used to detect sewage middle finger target detection probe, signal treatment circuit; Said detection probe is arranged in the equalizing tank and A/O pond of Waste Water Treatment; The signal output part of detection probe connects the signal input part of signal treatment circuit, and the signal output part of signal treatment circuit is used to connect the signal input part of PLC control unit; Said online ammonia nitrogen detection module comprises ammonia nitrogen sampling rod, reaction tank E, transmitter, control center and signaling conversion circuit; Said ammonia nitrogen sampling rod is used to connect equalizing tank and reaction tank E; Transmitter is arranged on the signal input part of the signal output part connection control center of reaction tank E inner sensor, and the wave output terminal of control center connects the signal input part of PLC control unit through signaling conversion circuit.
7. Industrial Wastewater Treatment device as claimed in claim 6 is characterized in that: said system also comprises man-machine interaction unit, and said man-machine interaction unit adopts PC, and said PLC control unit is connected with PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103500532A CN102381819A (en) | 2011-11-08 | 2011-11-08 | Industrial wastewater treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103500532A CN102381819A (en) | 2011-11-08 | 2011-11-08 | Industrial wastewater treatment device |
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| CN102381819A true CN102381819A (en) | 2012-03-21 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104155928A (en) * | 2014-06-24 | 2014-11-19 | 北京沃洋洲环保装备有限公司 | Operation control method for sewage treatment |
| CN106774095A (en) * | 2017-02-07 | 2017-05-31 | 北京易沃特科技有限公司 | A kind of Industrial Wastewater Treatment control method and system based on intelligent data analysis |
| CN111039395A (en) * | 2019-12-12 | 2020-04-21 | 广州环投环境服务有限公司 | Accurate aeration control method and system |
| CN111661952A (en) * | 2020-05-12 | 2020-09-15 | 中铁第四勘察设计院集团有限公司 | Modular micro-polluted water purification cabinet |
| CN117003324A (en) * | 2023-10-07 | 2023-11-07 | 北京赛科康仑环保科技有限公司 | Artificial intelligent control method and system for ammonia nitrogen wastewater treatment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155928A (en) * | 2014-06-24 | 2014-11-19 | 北京沃洋洲环保装备有限公司 | Operation control method for sewage treatment |
| CN106774095A (en) * | 2017-02-07 | 2017-05-31 | 北京易沃特科技有限公司 | A kind of Industrial Wastewater Treatment control method and system based on intelligent data analysis |
| CN106774095B (en) * | 2017-02-07 | 2019-07-30 | 北京易沃特科技有限公司 | A kind of Industrial Wastewater Treatment control method and system based on intelligent data analysis |
| CN111039395A (en) * | 2019-12-12 | 2020-04-21 | 广州环投环境服务有限公司 | Accurate aeration control method and system |
| CN111661952A (en) * | 2020-05-12 | 2020-09-15 | 中铁第四勘察设计院集团有限公司 | Modular micro-polluted water purification cabinet |
| CN117003324A (en) * | 2023-10-07 | 2023-11-07 | 北京赛科康仑环保科技有限公司 | Artificial intelligent control method and system for ammonia nitrogen wastewater treatment |
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Application publication date: 20120321 |