CN103278495B - Active sludge specific oxygen utilization rate on-line determination device and method in sewage disposal system - Google Patents
Active sludge specific oxygen utilization rate on-line determination device and method in sewage disposal system Download PDFInfo
- Publication number
- CN103278495B CN103278495B CN201310184995.7A CN201310184995A CN103278495B CN 103278495 B CN103278495 B CN 103278495B CN 201310184995 A CN201310184995 A CN 201310184995A CN 103278495 B CN103278495 B CN 103278495B
- Authority
- CN
- China
- Prior art keywords
- active
- water pump
- preaeration
- biomass
- mixed liquor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Activated Sludge Processes (AREA)
Abstract
Active sludge specific oxygen utilization rate (SOUR) on-line determination device in a kind of sewage disposal system, it is characterized in that, this device comprises: preaeration unit, oxygen consumption rate metering units, biomass metering units and Data Control and computing unit, and described preaeration unit comprises the first electric control valve, the first and second water pumps, preaeration tank and aerating system; Described oxygen consumption rate metering units comprises second and the 3rd electric control valve, airtight respiratory chamber, dissolved oxygen meter and electromagnetic mixer; Described biomass metering units comprises the 4th and the 5th electric control valve, active biomass on-line detecting system; Described Data Control and computing unit comprise data collecting card, computing machine and software program system.The present invention adopts active microorganism total amount in activated Sludge System to replace mixed liquor suspended solid, MLSS (MLSS) in the Traditional calculating methods of SOUR or mixed liquor volatile suspended solid, MLVSS (MLVSS), thus realizes the Accurate Determining of active sludge specific oxygen utilization rate.
Description
Technical field
The present invention relates to a kind of active sludge specific oxygen utilization rate (SOUR) Analytical system, particularly, relate to the on-line determination device and method of active sludge specific oxygen utilization rate in a kind of sewage disposal system, belong to technical field of sewage.
Active sludge specific oxygen utilization rate is called for short SOUR;
Biological oxygen demand (BOD) is called for short OUR;
Active biomass is called for short M;
Dissolved oxygen DO is called for short DO;
Active sludge intermixture suspended sediment concentration is called for short MLSS;
Active sludge intermixture VSS concentration is called for short MLVSS.
Background technology
Activated sludge process is method traditional and the most important in town sewage biological treatment.In Wastewater Treated by Activated Sludge Process sewage process, active sludge SOUR is a very important index of microbial activity in reactivity sludge system.But, due to the restriction of online active sludge SOUR detection method, in the monitoring system that sewage treatment plant is current, also do not realize the Real-Time Monitoring of this index.If can develop the online dynamic measurement that a kind of active sludge SOUR online test method and device realize active sludge SOUR in sewage disposal process, the running optimizatin for sewage treatment plant has very important meaning.
The definition of active sludge SOUR be the biology of unit mass in activated Sludge System within the unit interval utilize the amount of oxygen.In the calculating of active sludge SOUR, need mensuration two parameter values, i.e. biological oxygen demand (BOD) (OUR) and active biomass (M).Usually, OUR can be realized by the rate of change measuring dissolved oxygen DO (DO), and due to the determination techniques comparative maturity of DO, therefore the on-line checkingi ratio of active sludge OUR is easier to realize.But the mensuration of active biomass is a difficult point in activated Sludge System.At present, at sewage treatment area, in activated Sludge System, biomass is represented by mensuration active sludge intermixture suspended sediment concentration (MLSS) or mixed liquor volatile suspended solid, MLVSS concentration (MLVSS) usually.But, in MLSS and MLVSS two indices except active biomass, also comprise other composition, as the content of the organic and inorganic component in microbial metabolism residue, water inlet etc.Therefore, can greatly increase when using these indexs to represent active biomass in active sludge active sludge SOUR calculate error, finally can cause to activity of activated sludge detect inaccurate.
Chinese patent application CN101556270A discloses a kind of device of detection of active sludge system dynamic ratio oxygen consumption rate, it is for the specific oxygen utilization rate of sequencing batch active sludge (SBR) process determining active sludge, wherein, active sludge specific oxygen utilization rate equals the ratio of oxygen consumption rate and biomass, and biomass MLVSS in activated Sludge System represents.Therefore, also there are the problems referred to above in the method described in this patent, and thus the final active sludge SOUR value measured is also inaccurate.
Summary of the invention
The object of this invention is to provide method and the device of the on-line determination of active sludge SOUR in a kind of sewage disposal system, it adopts active biomass in the activated Sludge System by directly measuring to replace representing approx in classic method the index MLVSS of biomass in activated Sludge System, thus can realize the Accurate Determining of active sludge SOUR.
For this reason, according to an aspect of the present invention, provide active sludge SOUR on-line determination device in a kind of sewage disposal system, it is characterized in that, this device comprises: preaeration unit, oxygen consumption rate metering units, biomass metering units and Data Control and computing unit, described preaeration unit comprises the first electric control valve, the first water pump and the second water pump, preaeration tank and aerating system, and wastewater treatment plant aeration tank is communicated with preaeration tank by the first water pump, the first electric control valve; Described oxygen consumption rate metering units comprises the second electric control valve and the 3rd electric control valve, airtight respiratory chamber, records the dissolved oxygen meter of mixed liquor sample dissolution oxygen (DO) situation of change and make the electromagnetic mixer of the homogeneous mixing of mixed liquor sample, preaeration tank is communicated with airtight respiratory chamber by the second water pump, airtight respiratory chamber is arranged on electromagnetic mixer, and DO determination instrument probe is arranged in airtight respiratory chamber; Described biomass metering units comprises fourth, fifth electric control valve, active biomass on-line detecting system, and active biomass on-line detecting system is communicated with preaeration tank by the second water pump; Described Data Control and computing unit comprise data collecting card, computing machine and software program system, and computing machine and programming system are communicated with active microorganism amount detection systems with airtight respiratory chamber by data collecting card.
Preferably, aeration is carried out in the preaeration tank that in described preaeration unit, the mixed liquor in wastewater treatment plant aeration tank to pump in apparatus of the present invention by the first water pump by pipeline.
Preferably, in described oxygen consumption rate metering units, mixed liquor in the preaeration tank of apparatus of the present invention pumps in airtight respiratory chamber by DO analyzer record DO changing value by the second water pump.
Preferably, in described biomass metering units, mixed liquor in the preaeration tank of apparatus of the present invention is pumped into active biomass detection system by the second water pump, measures active microorganism total amount in activated Sludge System.
Preferably, described Data Control and computing unit are data collecting card, computing machine and software program system.
More preferably, computing machine controls the keying of each solenoid valve, water pump, electromagnetic mixer and aerator; The DO rate of change value that software program system is gathered by data collecting card and active microorganism value export active sludge SOUR value automatically.
Apparatus of the present invention are applicable to the sewage treatment plant of various Activated Sludge Process, are carried out the mensuration of active sludge SOUR in biological wastewater treatment process by automatic sampling, real-time analysis online.
According to another aspect of the present invention, provide a kind of active sludge SOUR on-line determination method in sewage disposal system, comprise the following steps:
First, to be pumped into by the mixed liquor in wastewater treatment plant aeration tank by water pump in the preaeration tank of apparatus of the present invention and carry out aeration, the volume wherein pumping into mixed liquor is 1L, and aeration time is 5 ~ 10 minutes, makes DO concentration finally reach 6 ~ 8mg/L.
Secondly, mixed liquor after aeration in preaeration tank to pump in respiratory chamber and by DO analyzer record DO changing value by water pump, this process by data collecting card record data and and computer communication, software program system in computing machine makes DO curve (DO-t) try to achieve this slope of a curve k over time automatically, and namely k value is preserved by the OUR value as active microorganism in activated Sludge System.
Finally, mixed liquor in preaeration tank after aeration is pumped into active biomass detection system by water pump, in activated Sludge System, active biomass (M) obtains by measuring the amount of ATP in microbial cell, software program system, by computing formula SOUR=OUR/M, exports active sludge SOUR value.
Accompanying drawing explanation
Fig. 1 is the process flow diagram according to active sludge specific oxygen utilization rate on-line determination of the present invention.
Fig. 2 is the structural representation of the respiratory chamber of active sludge specific oxygen utilization rate analyzer of the present invention.
Fig. 3 is the structural representation of the active biomass on-line detecting system of active sludge specific oxygen utilization rate analyzer of the present invention.
Embodiment
In FIG, active sludge specific oxygen utilization rate on-line determination device according to the present invention comprises: preaeration tank 1; Oxygen consumption rate Analytical system 2; Biomass detection system 3; Data collecting card 4, computer and software program system 5; First water pump 6 and the second water pump 7; First to the 5th electric control valve 8,9,10,11 and 12.
When specific oxygen utilization rate analyzer is started working, the mixed liquor in wastewater treatment plant aeration tank is pumped in preaeration tank 1 by water pump 6, and pumping into volume is 1L.In preaeration tank, make the dissolved oxygen concentration of mixed liquor sample be increased to 6 ~ 8mg/L by aeration, then stop aeration.Mixed liquor after aeration is pumped in oxygen consumption rate Analytical system 2 and active biomass Analytical system 3 by water pump 7 respectively quantitatively.In 2, microorganism carries out metabolism within the regular hour, and calculated oxygen consumption rate (OUR) value of microorganism by the amount of microbial metabolism institute oxygen consumed, after having tested, waste liquid is discharged by electric control valve 10.In 3, by atriphos (ATP) content of analytical unit volume microorganism, carry out the active biomass (M) of unit of account volume, after having measured, waste liquid is discharged by electric control valve 12.
The effect of electric control valve is each unit that Quality control entered, flowed out Analytical system automatically.
Data collecting card, computing machine and software program system will bear three functions: (1) controls the keying of each electric control valve, water pump, electromagnetic mixer and aerating system; (2) microorganism oxygen consumption rate Analytical system and active sludge microorganism amount detection systems is controlled; (3) online calculated activity mud SOUR value in real time.
Airtight respiratory chamber shown in Fig. 2 comprises respiratory chamber 1, electromagnetic mixer 2 and DO instrument 3.When respiratory chamber is started working, electromagnetic mixer starts, and DO analyzer starts to record mixed liquor DO changing value, automatically records a numerical value every 5 seconds, in computing machine, automatically generate DO (DO-t) curve over time by software program system, this slope of a curve is shown as active microorganism OUR.
The effect of electromagnetic mixer keeps mixed liquor sample in the homogeneous state that suspends, and makes measurement result stable, reliable;
The active biomass on-line detecting system of the active sludge specific oxygen utilization rate analyzer shown in Fig. 3 is made up of ATP measuring cell 1, distilled water hold-up vessel 2 and drug stock control tank 3.After system starts, mixed liquor sample, distilled water and medicament in preaeration tank are pumped in ATP measuring cell, the amount of active microorganism in activated Sludge System is calculated by the amount measuring atriphos (ATP) in active microorganism cell, its basis is that in activated Sludge System, single active microorganism intracellular ATP content and cell quality are certain, microbial total ATP amount is measured, by calculating the amount obtaining active microorganism in active sludge by the active biomass on-line detecting system of apparatus of the present invention.
As can be seen from above-mentioned three main parts, the present invention is by automatic sampling, Inlet and outlet water control automatically, on-line checkingi oxygen consumption rate (OUR) and active biomass (M), the on-line real-time measuremen of active sludge SOUR can be realized, and be applicable to the technique of various Wastewater Treated by Activated Sludge Process sewage.
According to the present invention, the biomass of active sludge mainly refers to active biomass in system (M).According to existing research, active microorganism intracellular ATP content is certain, the present invention adopts biloluminescence method to measure the intracellular ATP amount of active microorganism, adds buffer solution, decomposition agent, fluorescein (rL) and luciferase (L) in mixed liquor.Decomposition agent makes cell rupture, ATP molecule thus at luciferase and Mg
2+catalysis and fluorescein generation adenylylation, the fluorescein after activation is combined with fluorescein, and form fluorescein-AMP (AMP) complex and also discharge pyrophosphoric acid (PPi), complex is by O
2oxidation causes fluorescein generation to be electrically excited, and launches fluorescence when fluorescein gets back to ground state from excited state, and the amount of reacting light and the ATP produced is directly proportional.Therefore, ATP content (p) of active microorganism cell in active sludge can be measured according to luminous intensity.According to the content certain (q) of ATP in single bacterial cell, measure the fluorescence intensity inspired, just obtain total viable cells, then be multiplied by the quality m of individual cells, just can calculate active biomass M, M=pm/q.
Claims (8)
1. active sludge SOUR on-line determination device in a sewage disposal system, it is characterized in that, this device comprises: preaeration unit, oxygen consumption rate metering units, biomass metering units and Data Control and computing unit, described preaeration unit comprises the first electric control valve, the first water pump and the second water pump, preaeration tank and aerating system, and wastewater treatment plant aeration tank is communicated with preaeration tank by the first water pump, the first electric control valve; Described oxygen consumption rate metering units comprises the second electric control valve and the 3rd electric control valve, airtight respiratory chamber, records the dissolved oxygen meter of mixed liquor sample dissolution oxygen (DO) situation of change and make the electromagnetic mixer of the homogeneous mixing of mixed liquor sample, preaeration tank is communicated with airtight respiratory chamber by the second water pump, airtight respiratory chamber is arranged on electromagnetic mixer, and DO determination instrument probe is arranged in airtight respiratory chamber; Described biomass metering units comprises fourth, fifth electric control valve, active biomass on-line detecting system, and active biomass on-line detecting system is communicated with preaeration tank by the second water pump; Described Data Control and computing unit comprise data collecting card, computing machine and software program system, and computing machine and programming system are communicated with active microorganism amount detection systems with airtight respiratory chamber by data collecting card.
2. on-line determination device as claimed in claim 1, is characterized in that, carries out aeration in the preaeration tank that in described preaeration unit, the mixed liquor in wastewater treatment plant aeration tank to pump in apparatus of the present invention by the first water pump by pipeline.
3. on-line determination device as claimed in claim 1, it is characterized in that, in described oxygen consumption rate metering units, mixed liquor in the preaeration tank of apparatus of the present invention pumps in airtight respiratory chamber by DO analyzer record DO changing value by the second water pump.
4. on-line determination device as claimed in claim 1, it is characterized in that, in described biomass metering units, mixed liquor in the preaeration tank of apparatus of the present invention is pumped into active biomass detection system by the second water pump, measures active microorganism total amount in activated Sludge System.
5. on-line determination device as claimed in claim 1, it is characterized in that, described Data Control and computing unit are data collecting card, computing machine and software program system.
6. on-line determination device as claimed in claim 1, it is characterized in that, computing machine controls the keying of each solenoid valve, water pump, electromagnetic mixer and aerator; The DO rate of change value that software program system is gathered by data collecting card and active microorganism value export active sludge SOUR value automatically.
7. the on-line determination method of active sludge specific oxygen utilization rate (SOUR) in sewage disposal system, comprises the following steps:
First, to be pumped into by the mixed liquor in wastewater treatment plant aeration tank by water pump in the preaeration tank of apparatus of the present invention and carry out aeration, the volume wherein pumping into mixed liquor is 1L, and aeration time is 5 ~ 10 minutes, makes DO concentration finally reach 6 ~ 8mg/L;
Secondly, mixed liquor after aeration in preaeration tank to pump in respiratory chamber and by DO analyzer record DO changing value by water pump, this process by data collecting card record data and and computer communication, software program system in computing machine makes DO curve (DO-t) try to achieve this slope of a curve k over time automatically, and namely k value is preserved by the OUR value as active microorganism in activated Sludge System;
Finally, mixed liquor in preaeration tank after aeration is pumped into active biomass detection system by water pump, in activated Sludge System, active biomass (M) obtains by measuring the amount of ATP in microbial cell, software program system, by computing formula SOUR=OUR/M, exports active sludge SOUR value.
8. one kind as the on-line determination device of claim 1-6 as described in one of them, application in the sewage treatment plant of various Activated Sludge Process, it is characterized in that, by automatic sampling, real-time analysis, carry out the mensuration of active sludge SOUR in biological wastewater treatment process online.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310184995.7A CN103278495B (en) | 2013-05-17 | 2013-05-17 | Active sludge specific oxygen utilization rate on-line determination device and method in sewage disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310184995.7A CN103278495B (en) | 2013-05-17 | 2013-05-17 | Active sludge specific oxygen utilization rate on-line determination device and method in sewage disposal system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103278495A CN103278495A (en) | 2013-09-04 |
| CN103278495B true CN103278495B (en) | 2015-12-09 |
Family
ID=49061076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310184995.7A Active CN103278495B (en) | 2013-05-17 | 2013-05-17 | Active sludge specific oxygen utilization rate on-line determination device and method in sewage disposal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103278495B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477714A (en) * | 2016-10-17 | 2017-03-08 | 尚川（北京）水务有限公司 | A kind of superelevation sludge age biochemistry integrated apparatus |
| CN109632566B (en) * | 2018-12-18 | 2021-07-06 | 海若斯（北京）环境科技有限公司 | Determination method based on activated sludge respiration rate determination device |
| CN117821250A (en) * | 2024-01-12 | 2024-04-05 | 安及义实业（上海）有限公司 | Device and method for measuring oxygen consumption rate of cells |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5106511A (en) * | 1989-12-22 | 1992-04-21 | Kodukula Prasad S | On-line biological inhibition/toxicity detector |
| KR100247321B1 (en) * | 1998-04-17 | 2000-03-15 | 강예석 | Method and apparatus optimizing the process of sequencing batch reactor for analyzing specific oxygen uptake rate and nitrate nitrogen by real time on-line measurement at the biological wastewater treatment process |
| KR20050081932A (en) * | 2004-02-17 | 2005-08-22 | 이진원 | Improvement of respirometer for simultaneous measurement of oxygen uptake rate and concentration of microbes |
| KR100511225B1 (en) * | 2004-08-24 | 2005-08-31 | 주식회사 드림바이오스 | A multi-continuous analyzer of our, sour and do using do and mlss meters attached to a submerged reactor |
| CN101539564A (en) * | 2009-04-24 | 2009-09-23 | 北京工业大学 | Method for detecting dynamic specific oxygen utilization rate of activated sludge system |
| CN101556270A (en) * | 2009-04-24 | 2009-10-14 | 北京工业大学 | Device for detecting dynamic specific oxygen utilization rate of activated sludge system |
| CN201508636U (en) * | 2009-04-24 | 2010-06-16 | 北京工业大学 | Teaching experimental apparatus for detecting dynamic ratio oxygen consumption rate in activated sludge system |
| CN201903539U (en) * | 2010-12-03 | 2011-07-20 | 北京工业大学 | Frequency-converting speed-regulating fast online detecting device for specific oxygen uptake rate |
| CN102183910A (en) * | 2010-12-03 | 2011-09-14 | 北京工业大学 | Method for detecting specific oxygen utilization rate of activated sludge microorganism online based on frequency control |
| CN102608283A (en) * | 2011-01-24 | 2012-07-25 | 中国科学院城市环境研究所 | Method for rapidly determining biodegradale organic matter in inflow water and outflow water of biological filter |
| CN102818801A (en) * | 2011-06-08 | 2012-12-12 | 同济大学 | Method for determining ATP |
-
2013
- 2013-05-17 CN CN201310184995.7A patent/CN103278495B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5106511A (en) * | 1989-12-22 | 1992-04-21 | Kodukula Prasad S | On-line biological inhibition/toxicity detector |
| KR100247321B1 (en) * | 1998-04-17 | 2000-03-15 | 강예석 | Method and apparatus optimizing the process of sequencing batch reactor for analyzing specific oxygen uptake rate and nitrate nitrogen by real time on-line measurement at the biological wastewater treatment process |
| KR20050081932A (en) * | 2004-02-17 | 2005-08-22 | 이진원 | Improvement of respirometer for simultaneous measurement of oxygen uptake rate and concentration of microbes |
| KR100511225B1 (en) * | 2004-08-24 | 2005-08-31 | 주식회사 드림바이오스 | A multi-continuous analyzer of our, sour and do using do and mlss meters attached to a submerged reactor |
| CN101539564A (en) * | 2009-04-24 | 2009-09-23 | 北京工业大学 | Method for detecting dynamic specific oxygen utilization rate of activated sludge system |
| CN101556270A (en) * | 2009-04-24 | 2009-10-14 | 北京工业大学 | Device for detecting dynamic specific oxygen utilization rate of activated sludge system |
| CN201508636U (en) * | 2009-04-24 | 2010-06-16 | 北京工业大学 | Teaching experimental apparatus for detecting dynamic ratio oxygen consumption rate in activated sludge system |
| CN201903539U (en) * | 2010-12-03 | 2011-07-20 | 北京工业大学 | Frequency-converting speed-regulating fast online detecting device for specific oxygen uptake rate |
| CN102183910A (en) * | 2010-12-03 | 2011-09-14 | 北京工业大学 | Method for detecting specific oxygen utilization rate of activated sludge microorganism online based on frequency control |
| CN102608283A (en) * | 2011-01-24 | 2012-07-25 | 中国科学院城市环境研究所 | Method for rapidly determining biodegradale organic matter in inflow water and outflow water of biological filter |
| CN102818801A (en) * | 2011-06-08 | 2012-12-12 | 同济大学 | Method for determining ATP |
Non-Patent Citations (5)
| Title |
|---|
| ATP 检测在活性污泥工艺中的应用进展;尹军 等;《吉林建筑工程学院学报》;20090930;第24卷(第3期);7-10 * |
| SBR 工艺活性污泥比耗氧速率与控制参数的关系;尹军 等;《环境污染与防治》;20070731;第29卷(第7期);481-483 * |
| 活性污泥系统动态比耗氧速率的检测与可行性验证;李凌云 等;《北京工业大学学报》;20110930;第37卷(第9期);1430-1433 * |
| 活性污泥系统比耗氧速率在线检测与变化规律;李凌云 等;《化工学报》;20100430;第61卷(第4期);995-999 * |
| 荧光素酶法测定活性污泥中的ATP;杨国栋 等;《分析测试技术与仪器》;19981231;第4卷(第4期);第241页1前言第1-2段 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103278495A (en) | 2013-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101907596B (en) | Method for monitoring and estimating inlet water toxicity of urban wastewater treatment plant on line | |
| CN101769863B (en) | Low-detection-lower-limit total arsenic online analyzer and analysis method thereof | |
| CN105548296B (en) | A kind of activated sludge ammonia nitrogen utilizes rate on-line measuring device and detection method | |
| CN101793902A (en) | Device for fluidly injecting and rapidly analyzing residual chlorine of water quality and analysis method thereof | |
| CN102980983A (en) | Online monitoring analyzer and monitoring system for sewage biotoxicity | |
| DK156852B (en) | PROCEDURE AND DEVICE FOR THE REGISTRATION OF BIOLOGICAL DEGRADABLE AND TOXIC INGREDIENTS IN Aqueous SOLUTIONS, eg WASTE WATER | |
| CN101788522A (en) | Chemical oxygen demand (COD) on-line monitoring device and method based on boron-doped diamond membrane electrode | |
| CN103592334B (en) | Monitoring method based on batch-type biological toxicity tests early warning system | |
| CN102944658B (en) | Method for analyzing biotoxicity of sewage based on system dissolved oxygen concentration | |
| CN103278495B (en) | Active sludge specific oxygen utilization rate on-line determination device and method in sewage disposal system | |
| CN201903539U (en) | Frequency-converting speed-regulating fast online detecting device for specific oxygen uptake rate | |
| CN102288653A (en) | Online biochemical oxygen demand (BOD) detector and detection method of same | |
| Hussain et al. | Real-time biomonitoring of oxygen uptake rate and biochemical oxygen demand using a novel optical biogas respirometric system | |
| CN113292200A (en) | Online multi-parameter automatic rapid water quality detection device in sewage treatment process | |
| CN102109512A (en) | Device and method for detecting water toxicity | |
| CN102183910B (en) | Method for detecting specific oxygen utilization rate of activated sludge microorganism online based on frequency control | |
| CN107315076A (en) | A kind of online oxicity analysis system and its assay method | |
| CN103336045B (en) | Device for on-line detection and automatic alarm of toxic substances and detection method of toxic substances | |
| KR101016394B1 (en) | Real-time wastewater composition analyzer using a rapid microbial respiration detector, ss and ec combined sensing system and its measuring method | |
| CN201689039U (en) | Total arsenic online analyzer with low detection limit | |
| CN201935910U (en) | Water quality toxicity detecting device | |
| CN202083662U (en) | Online tester for biochemical oxygen demand BOD | |
| CN205038164U (en) | Total nitrogen, integrative online water quality monitoring system of phosphorus | |
| JP6191404B2 (en) | Sludge activity measuring apparatus and sludge activity measuring method | |
| CN110632267A (en) | System and method for continuously measuring high-concentration sewage exceeding application range of online instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |