HJ 354-2019 English PDF (HJ354-2019)

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HJ 354-2019: Technical specification for check and acceptance of wastewater on-line monitoring system (CODCr, NH3-N et al.)
HJ 354-2019
NATIONAL ENVIRONMENTAL PROTECTION STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
Replacing HJ/T 354-2007
Technical specification for check and acceptance of
wastewater on-line monitoring system
(CODCr, NH3-N et al.)
ISSUED ON: DECEMBER 24, 2019
IMPLEMENTED ON: MARCH 24, 2020
Issued by: Ministry of Ecology and Environment
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 6 
4 Acceptance conditions and acceptance content ... 8 
5 Construction acceptance requirements ... 9 
6 Acceptance requirements for wastewater online monitoring equipment ... 12 
7 Network acceptance requirements ... 19 
8 Acceptance requirements for operation and maintenance program ... 20 
9 Requirements for preparation of acceptance report ... 21 
Appendix A (Normative) Acceptance report format ... 22 
Appendix B (Normative) Format of comparison monitoring report ... 33 
Technical specification for check and acceptance of
wastewater on-line monitoring system
(CODCr, NH3-N et al.)
1 Scope
This standard specifies the acceptance conditions and acceptance procedures
of the wastewater online monitoring system; the acceptance requirements for
water pollution source discharge outlets, flow monitoring units, monitoring
stations, automatic water sampling units and data control units; the acceptance
methods and acceptance technical indicators of flow meters, water quality
automatic samplers and water quality automatic analyzer; as well as the
acceptance content of the operation and maintenance plan of the wastewater
online monitoring system.
This standard applies to the acceptances of the components of the wastewater
online monitoring system constructed and installed in accordance with HJ 353
as well as the online monitoring instruments of water pollution sources such as
flow meters, automatic water quality samplers, water quality automatic
analyzers of chemical oxygen demand (CODCr), water quality automatic
analyzers of total organic carbon (TOC), water quality automatic analyzers of
ammonia nitrogen (NH3-N), water quality automatic analyzer of total
phosphorus (TP), water quality automatic analyzer of total nitrogen (TN),
thermometers, pH water quality automatic analyzers, etc.
The wastewater online monitoring system specified in this standard is
applicable to the online monitoring of chemical oxygen demand (CODCr),
ammonia nitrogen (NH3-N), total phosphorus (TP), total nitrogen (TN), pH value,
temperature, flow monitoring factors .
2 Normative references
This standard refers to the following documents or clauses therein. For undated
references, the valid version is applicable to this standard.
GB/T 6920 Water quality - Determination of pH value - Glass electrode
method
GB/T 11893 Water quality - Determination of total phosphorus - Ammonium
molybdate spectrophotometric method
GB/T 15562.1 Environmental protection graphic sign - Discharge port
(source)
GB/T 50093 Code for construction and acceptance of automation
instrumentation engineering
GB/T 50168 Code for construction and acceptance of cable lines for
electrical installation engineering
HJ 212 Data transmission standard for online monitoring systems of
pollutant
HJ 353-2019 Technical specification for installation of wastewater on-line
monitoring system (CODCr, NH3-N et al.)
HJ 355 Technical specification for operation of wastewater on-line
monitoring system (CODCr, NH3-N et al.)
HJ 535 Water quality - Determination of ammonia nitrogen - Nessler reagent
spectrophotometry
HJ 536 Water quality - Determination of ammonia nitrogen - Salicylic acid
spectrophotometry
HJ 636 Water quality - Determination of total nitrogen - Alkaline potassium
persulfate digestion UV spectrophotometric method
HJ 828 Water quality - Determination of the chemical oxygen demand -
Dichromate method
HJ/T 70 High-chlorine wastewater - Determination of chemical oxygen
demand - Chlorine emendation method
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1
Wastewater on-line monitoring system
Refers to a system consisting of software and hardware facilities that
implement functions such as monitoring the flow of water pollution source
flow, collecting water samples from water pollution sources, analyzing water
samples from water pollution sources, analyzing data statistics and
uploading.
3.2
Data marker
Refers to the markers used to represent different test data attributes of
wastewater online monitoring instruments.
4 Acceptance conditions and acceptance content
4.1 Acceptance conditions
4.1.1 Provide relevant technical information on the type selection, engineering
design, construction, installation and commissioning, performance of the
wastewater online monitoring system.
4.1.2 The wastewater online monitoring system has been installed,
commissioned and test run in accordance with HJ 353; all indicators meet the
requirements of Table 3 in HJ 353-2019; it has submitted commissioning reports
and test run reports.
4.1.3 Provide verification certificates for flow meters and standard
measurement weirs (grooves). The wastewater online monitoring equipment
that meet the technical requirements in Table 1 of HJ 353-2019.
4.1.4 The basic communication network and basic communication protocol
used by the wastewater online monitoring system shall comply with the relevant
requirements of HJ 212, respond to the various contents of the communication
specifications, provide relevant self-inspection reports. At the same time,
provide the network certification issued by the competent environmental
protection department.
4.1.5 The automatic water sampling unit has been running stably for one month.
It can collect instantaneous samples and representative composite samples for
the analysis of the wastewater online monitoring instruments. It may retain
samples and alarm.
4.1.6 The power supply is uninterrupted during the acceptance process.
4.1.7 The data control unit has been operating stably for one month, sending
data to the monitoring center platform in time, during which the equipment
operation rate shall be greater than 90%; the data transmission rate shall be
greater than 90%. Equipment operation rate and data transmission rate are
calculated with reference to formulas (1) and (2).
Equipment operation rate = (Actual operating hours / enterprise discharge
hours) x 100% ………………….………… (1)
Wherein:
ultrasonic probes at the installation place of the flowmeter, which can facilitate
the maintenance and comparison of the flowmeter.
5.2.3 All open edges of the working platform shall be provided with protective
railings. Protective railings and steel platforms shall be provided at the water
intakes in the air and high places. The edges of each platform shall be provided
with devices to prevent debris from falling into the water intakes.
5.2.4 The installation and construction of the maintenance and sampling
platform shall all meet the requirements.
5.2.5 The installation of protective railings shall all meet the requirements.
5.3 Monitoring station building
5.3.1 The monitoring station building has its all rooms dedicated for special
purposes.
5.3.2 The monitoring station building is airtight and equipped with heating and
cooling air conditioners and exhaust fans. The air conditioner has the automatic
running function once powe...