On June 30, 2021, the Vietnamese Ministry of Natural Resources and Environment issued Circular 10/2021/TT-BTNMT, which regulates environmental monitoring techniques and monitoring information and data management. This circular replaces Circular 24/2017/TT-BTNMT, which was in effect on September 1, 2017.
As of August 16, 2021, Circular 10/2021-BTNMT replaced Circular 24, becoming the new regulatory framework for environmental monitoring. This change has minimal effects on businesses that have already equipped their facilities with monitoring stations.
Due to the recent regulation updates, businesses that plan to install new monitoring stations will face some changes. Let's have Viet An delve into the key differences between Circulars 10 and 24 regarding wastewater monitoring requirements.
Wastewater monitoring system requirements specified in Circular 10/2021/TT-BTNMT.
| STT | Criteria | Circular 24/2017/TT-BTNMT | Circular 10/2021/TT-BTNMT |
| 1 | Installation plan | Direct & indirect | Direct & indirect |
| 2 | Datalogger | Minimum storage of 30 days. File Transfer Protocol | Minimum storage of 60 days. FTP/ FTPS/ sFTP |
| 3 | Standard solutions | Minimum accuracy ± 5% (± 0,1 pH), standard calibration, 3 calibration points | Minimum accuracy ± 5% (± 0,1 pH), standard calibration, 1 calibration points |
| 4 | Automatic sampler | Sealed, remote control signal, storage cabinet at 4 ± 2 oC | Sealed, remote control signal, storage cabinet at 4 ± 2 oC |
| 5 | Camera | 02, IP 65, Full HD 1.080p (15fps), pan-tilt, night vision, recording schedule | 02, pan-tilt, night vision, recording schedule, RTSP streaming, minimum storage of 3 months |
| 6 | UPS | Minimum 30 minutes | Minimum 30 minutes |
| 7 | Risk assessment | Residual chlorine ≤ 20% | Residual chlorine ≤ 30% |
| 8 | Internet | 3 MB/s | 30 Mb/s |
| 9 | Pump & sample transfer line | 2 alternating pumps. 2 parallel pipelines (min Ø 27). Maximum length 20m | 2 alternating pumps. 2 parallel pipelines (min Ø 27). |
| 10 | Fire alarm, smoke alarm, direct and induced lightning protection; Equipment status alarm | ✓ | ✓ |
Technical requirements for wastewater monitoring systems as specified in Circular 10/2021/TT-BTNMT.
Viet An highlighted several significant differences between Circular 10/2021/TT-BTNMT and Circular 24/2017/TT-BTNMT.
Furthermore, Circular 10/2021/TT-BTNMT includes several other modifications. For more information and tailored advice, please reach out to Viet An.
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