In the denitrification treatment, effluent standard monitoring, and process optimization stages of water purification plants, real-time and accurate monitoring of nitrate nitrogen concentration is the core to ensure that the effluent quality meets the "Pollutant Discharge Standards for Urban Sewage Treatment Plants" and improve purification efficiency. The UV method nitrate nitrogen online analyzer of Xiamen Jingchuan Water Purification Plant relies on the core technology of ultraviolet spectrophotometry (UV method), and is specially optimized for complex water samples with high turbidity and high organic content in water purification plants. It can achieve rapid and reagent free detection of nitrate nitrogen, becoming a key equipment for intelligent monitoring of nitrate nitrogen and reducing operation and maintenance costs in water purification plants.
Xiamen JingchuanUV method nitrate nitrogen online analyzer for water purification plant
In the denitrification treatment, effluent standard monitoring, and process optimization stages of water purification plants, real-time and accurate monitoring of nitrate nitrogen concentration is the core to ensure that the effluent quality meets the "Pollutant Discharge Standards for Urban Sewage Treatment Plants" and improve purification efficiency.Spectral nitrate nitrogen online analyzer for water purification plantBased on the core technology of ultraviolet spectrophotometry (UV method), a special optimization is carried out for complex water samples with high turbidity and high organic content in water purification plants, which can achieve rapid and reagent free detection of nitrate nitrogen. It has become a key equipment for water purification plants to achieve intelligent monitoring of nitrate nitrogen and reduce operation and maintenance costs.
Xiamen JingchuanUV method nitrate nitrogen online analyzer for water purification plantCore technological advantages
UV method for precise detection without reagentsUsing dual beam ultraviolet spectrophotometry, the characteristic absorption characteristics of nitrate nitrogen at specific ultraviolet wavelengths (220nm/275nm) are utilized for direct measurement without the need for chemical reagents, avoiding secondary pollution and cost waste caused by reagent failure and waste liquid discharge in traditional chemical methods. Special optimization is carried out for the common concentration range of nitrate nitrogen from 0-50mg/L in water purification plants, with a measurement error of ≤± 2% and a repeatability of ≤± 1% in the low concentration range (0-10mg/L). Even when facing complex water samples in the biochemical tank effluent and deep treatment stages, interference can be eliminated through exclusive spectral analysis algorithms to ensure accurate and reliable data, providing real-time data support for denitrification process adjustment.
Anti complex water quality interference designIn response to interference factors such as suspended particles, dissolved organic matter, and chromaticity in water samples from water purification plants, an automatic turbidity compensation module and organic matter correction algorithm are built-in. By synchronously monitoring the turbidity (900nm reference wavelength) and organic matter absorption value of the water sample, the measurement results are corrected in real time. The flow path system adopts an anti clogging sampling design, with a sampling tube diameter of 10mm. Combined with a high-pressure blowback device, it can effectively prevent impurities such as activated sludge flocs and algae from blocking the pipeline; The components that come into contact with the water sample are made of 316L stainless steel and PTFE materials, which are resistant to corrosive substances such as acid, alkali, and sulfides in the water sample, ensuring stable operation under conditions of large water inflow fluctuations and high sludge concentration.
Efficient and intelligent operation and maintenance functionsIntegrated automatic cleaning and calibration system, which can automatically set the cleaning cycle (1-24 hours adjustable) according to the turbidity of the water sample. The high-pressure water gas double flushing technology is used to remove biofilms and impurities on the surface of the measuring tank and sensor. The cleaning process only takes 30 seconds and does not affect normal monitoring. The calibration cycle is extended to more than 3 months, reducing 60% of manual maintenance workload compared to traditional equipment. Support remote operation and maintenance. Management personnel can view real-time data and historical curves (stored for ≥ 12 months) through a computer or mobile app, and complete parameter settings and fault diagnosis. When the nitrate nitrogen concentration exceeds the set threshold, an automatic sound and light alarm will be triggered and pushed to the operation and maintenance terminal to avoid the risk of excessive effluent.
Process linkage and energy-saving optimizationSupport 4-20mA analog signal and RS485 digital signal (Modbus RTU protocol) output, seamlessly integrate with the central control system and PLC equipment of water purification plants, and achieve closed-loop control of nitrate nitrogen concentration and denitrification process. For example, when the concentration of nitrate nitrogen in the nitrification tank is detected to be too high, the power of the aeration equipment or the amount of carbon source added will be automatically adjusted to optimize the denitrification efficiency; In the deep processing stage, adjust the operating parameters of the filter based on the effluent nitrate nitrogen data to reduce ineffective energy consumption. According to application data from a certain water purification plant, the equipment can help reduce energy consumption in the denitrification process by 15% -20% and carbon source consumption by 18%.
Xiamen JingchuanPurification plant nitrate nitrogen online analyzerKey technical parameters
measurement rangeNitrate nitrogen levels range from 0-50mg/L (expandable to 0-100mg/L), covering the entire monitoring process of water purification plants.
measurement accuracy± 2% FS, low concentration range (0-10mg/L) repeatability ≤ ± 1%, ensuring data accuracy.
response time≤ 5 minutes (including sampling and analysis), quickly provide feedback on concentration changes.
working conditionsTemperature range: 0-40 ℃, humidity ≤ 95% RH (non condensing), suitable for purification plant workshop/outdoor environment.
Protection level：IP65， Dustproof and waterproof, can be installed in scenarios such as biochemical tanks and effluent monitoring stations.
data storage≥ 12 months of historical data, supports USB drive export and cloud upload.
Multiple application scenarios
Monitoring of nitrogen removal in biochemical poolReal time tracking of nitrate nitrogen concentration changes in nitrification and denitrification tanks provides a basis for aeration control and carbon source addition in activated sludge processes, avoiding a decrease in treatment efficiency caused by nitrate nitrogen accumulation. After application in a municipal water purification plant, the denitrification efficiency of the biochemical tank increased by 22%.
Monitoring of effluent complianceInstalled in front of the main discharge outlet, it monitors the concentration of nitrate nitrogen in the effluent in real time, warns in advance of the risk of exceeding the standard, ensures that the effluent meets the GB 18918-2002 Grade A standard, and cooperates with automatic alarm function to reduce manual inspection pressure.
Deep processing optimizationIn advanced treatment processes such as ozone oxidation and activated carbon adsorption, monitor the concentration of nitrate nitrogen in the inlet and outlet water, evaluate the effectiveness of advanced treatment, optimize treatment parameters, reduce energy waste caused by excessive treatment, and help water purification plants achieve the dual goals of "energy conservation and compliance".
The UV based nitrate nitrogen online analyzer for water purification plants provides an efficient solution for nitrate nitrogen monitoring due to its advantages of reagent free detection, strong anti-interference, and intelligent operation and maintenance. Whether it is ensuring effluent meets standards, optimizing denitrification processes, or reducing operation and maintenance costs, this equipment can play a key role in helping water purification plants transform towards intelligent and green operations, and contribute to water environment governance.
Self cleaning nitrate nitrogen online detector UV methodFeatures
Probe direct immersion measurement without sampling and preprocessing;
No need for chemical reagents, no secondary pollution;
Short response time, capable of continuous measurement;
The sensor has an automatic cleaning function, which can reduce maintenance;
Simple to use, reliable results, and interface operation instructions can reduce operational errors;
A visual alarm system has been set up to provide important alarm functions;
The controller can be wall mounted/panel mounted/clamp tube mounted.
Sewage nitrate nitrogen analyzerTechnical parameters of sensors
measurement range |
0.1～40.0mg/L ( 2mmoptical path) |
measurement accuracy |
± 5% |
repetitiveness |
± 2% |
resolution |
0.01 mg/L |
pressure range |
≤0.4Mpa |
sensor material |
fuselage:SUS316L(Standard version), titanium alloy (seawater version); Cable:PUR |
communication protocol |
MODBUS RS485 |
Storage temperature |
-15to50℃ |
Operating Temperature |
0to45℃(Not frozen) |
size |
diameter69mm*length380mm |
weight |
3.2KG |
Protection level |
IP68/NEMA6P |
cable length |
standard configuration10Meter cable, can be extended up to100rice |
Online nitrate nitrogen analyzer for wastewater treatment in sewage treatment plantsTypical Applications
In the fields of drinking water/surface water/industrial production process water/sewage treatment, continuous monitoring of nitrate concentration dissolved in water is particularly suitable for monitoring sewage aeration tanks and controlling denitrification processes.
The sensor of the spectral nitrate nitrogen analyzer has an automatic cleaning functionController technical parameters:
display output |
128*64Graphic dot matrix LCD withLEDStrong backlight for operation under direct sunlight |
electricity source |
Communication power supply:85-500VAC (50/60HZ)；DC power supply:9~36VDC |
Main materials |
PA66+GF25+FR(Top cover); Aluminum alloy powder coating (lower shell) |
lose go out |
Three routes4-20mA |
succeed electricity device |
Three way relay, program set response parameters and response values |
Digital Communication |
matchMODBUS RS485Communication function, capable of real-time transmission of measurement values |
Storage temperature |
-20to70℃ |
Operating temperature |
-15to60℃ |
waterproof rating |
IP65/NEMA4X |
ruler inch |
145mm*125mm*162mm(Long)*wide*High) |
heavy quantity |
1.35KG |
