The water quality pollution early warning and source tracing instrument adopts a full-spectrum optical path design, with overscan analysis ofthe absorption spectrum ofthe entire ultraviolet-
visible band of 190-720 nm. Combined with modeling algorithms, it can qualitatively and quantitatively analyze various pollutants and determine changes in the composition or concentration of various water quality parameters. It can measure a number of water quality parameters such as COD, BOD, TOC, UV254, chroma, turbidity, nitrate nitrogen, and nitrite nitrogen.
Main Characteristics
● Fast: second-level response time, real-time monitoring ofthe changing trend of water samples;
● Efficient: one device can measure eight water quality factors at the same time;
● Accurate: in-situ monitoring, no need for water sample pretreatment; dual-beam measurement system, automatically compensates for changes in light source, not affected by turbidity, chloride ions, flow rate, etc.;
● Maintenance-free: no need for reagents, no secondary pollution, automatic timed cleaning;
● Real-time analysis ofthe source of water pollution and can analyze the contribution of each pollution source around the monitoring point in real time;
● It has a water quality abrupt change alarm function. When the water quality suddenly changes due to unknown substances (not within the range ofthe eight monitored factors), the device can automatically identify the abnormal spectrum through intelligent algorithms and issue an alarm message, so that the user can determine the abnormal substance through sampling and testing;
● It has an over-limit alarm function: the user can set an alarm threshold, and when the value ofthe monitoring factor exceeds the threshold, the device will send an alarm message;
● It has a water quality monitoring factor forecast and early warning function: it has an algorithm learning function that can predict the future value ofthe water quality factor; when the predicted data exceeds the set threshold, the device issues an early warning message.
Parameters and Indexes
| Power-Spectral Method (UV-VIS) |
| Parameter |
COD |
BOD |
TOC |
Nitrate Nitrogen |
| Measurement range |
0–500 mg/L |
0–300 mg/L |
0–150 mg/L |
0–70 mg/L |
| Measurement parameter |
Nitrous nitrogen |
Turbidity |
Chroma |
UV254 |
| Measurement range |
0–10 mg/L |
0–1400 NTU |
0–500 degree |
0～300m2 |
| Compensation |
Automatic compensation of double-light speed |
| Repeatability |
≤10% |
| Zero-point drift |
≤±10% F.S |
| Measurement range drift |
≤±10% F.S |
| Response time |
<5s |
| Transmission method |
RS485 (remote control from the industrial computer end) |
| Traceability analysis |
Contribution analysis of each pollution source at water quality monitoring points |
| Forecast warning |
Water quality monitoring factor trend forecasting and early warning |
| Excessive alarm |
Water quality monitoring factor exceedance value alarm |
| Water quality abrupt change alarm |
The system sends an alarm signal when the water quality changes suddenly |
