HJ 353-2019 PDF English
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Technical specification for installation of wastewater on-line monitoring system (CODCr, NH3-N et al.)
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| HJ/T 353-2007 | English | 559 |
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Technical guidelines of wastewater on-line monitoring equipments and installation (on trial)
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Similar standards HJ 355 HJ 354 HJ 356 HJ 353-2019: Technical specification for installation of wastewater on-line monitoring system (CODCr, NH3-N et al.)
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/HJ353-2019
NATIONAL ENVIRONMENTAL PROTECTION STANDARD
Replacing HJ/T 353-2007
Technical specification for installation 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 of application... 5
2 Normative references... 5
3 Terms and definitions... 7
4 Composition of wastewater on-line monitoring system... 8
5 Construction requirements... 9
6 Installation requirements for wastewater on-line monitoring equipment... 13
7 Debugging requirements... 16
8 Requirements for trial operation... 19
Annex A (normative) Determination of TOC and CODCr conversion coefficients
... 22
Annex B (informative) Monitoring station room layout... 27
Annex C (informative) Statistics of wastewater on-line monitoring system... 29
Annex D (informative) Installation specifications on standard metering weir
(flume)... 32
Annex E (informative) Enterprise sewage and wastewater on-line monitoring
equipment situation... 45
Annex F (informative) Debugging report of wastewater on-line monitoring
equipment... 47
Annex G (informative) Trail operation report of wastewater on-line monitoring
system... 51
1 Scope of application
This Standard specifies the composition of wastewater on-line monitoring
system, construction requirements for wastewater discharge outlets, flow
monitoring units, monitoring stations, automatic water quality sampling units
and data control units, installation requirements for flow meter, automatic water
quality sampler and automatic water quality analyzer, as well as technical
requirements for debugging and trial operation of wastewater on-line monitoring
system.
This Standard is applicable to the construction of components of wastewater
on-line monitoring system (CODCr, NH3-N et al.), as well as the installation,
debugging and trial operation of wastewater on-line monitoring equipment such
as used flow meter, water quality automatic sampler, chemical oxygen demand
(CODCr) automatic water quality analyzer, total organic carbon (TOC) automatic
water quality analyzer, ammonia nitrogen (NH3-N) automatic water quality
analyzer, total phosphorus (TP) water quality automatic analysis Meter, total
nitrogen (TN) automatic water quality analyzer, thermometer, pH automatic
water quality analyzer.
The wastewater on-line monitoring system (CODCr, NH3-N et al.) standardized
in this Standard is applicable to the on-line monitoring of chemical oxygen
demand (CODCr), ammonia nitrogen (NH3-N), total phosphorus (TP), total
nitrogen (TN), pH, temperature and flow monitoring factors.
2 Normative references
The following documents contain the provisions which, through reference in this
Standard, become the provisions of this Standard. For undated reference
documents, the latest versions apply to this Standard.
GB 15562.1, Graphical signs for environmental protection - Discharge outlet
(source)
GB 50057, Design Code for Protection of Structures against Lightning
GB 50093, Code for construction and quality acceptance of automation
instrumentation engineering
GB 50168, Standard for construction and acceptance of cable line electric
equipment installation engineering
GB 50169, Code for construction and acceptance of grounding connection
electric equipment installation engineering
GB/T 17214, Industrial-process measurement and control equipment -
Operating conditions
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 wastewater on-line monitoring system
A system that consists of software and hardware facilities to implement
functions such as wastewater flow monitoring, wastewater sample collection,
wastewater sample analysis, analysis data statistics and upload.
3.2 wastewater on-line monitoring equipment
The instruments, meters in wastewater on-line monitoring system that are used
to conduct on-line continuous monitoring on pollutant concentrations and
emissions.
3.3 instantaneous sample
The water sample that is collected at one time at a sampling point.
3.4 composite sample
A mixture of water samples that are collected at a same sampling point
continuously or at different times.
4 Composition of wastewater on-line monitoring system
The wastewater on-line monitoring system mainly consists of four parts. flow
monitoring unit, automatic water sampling unit, wastewater on-line monitoring
equipment, data control unit and corresponding building facilities, as shown in
Figure 1.
5 Construction requirements
5.1 Wastewater discharge outlet
5.1.1 According to the layout principles in HJ 91.1, select the location of the
wastewater discharge outlet.
5.1.2 The discharge outlet shall be equipped with environmental protection
graphic signs in accordance with the requirements of GB 15562.1.
5.1.3 The discharge outlet shall be able to meet the construction requirements
of the flow monitoring unit.
5.1.4 The discharge outlet shall be able to meet the construction requirements
for automatic water sampling unit.
5.2 Flow monitoring unit
5.2.1 It needs to measure the sewage unit of flow. According to the terrain and
drainage method as well as the amount of drainage, it shall, at the position
where the upstream of its discharge outlet can contain all sewage beams,
construct a flow measurement section of special channel (pipe), so as to meet
the requirements of measuring flow and velocity.
5.3 Monitoring station room
5.3.1 There shall be a dedicated monitoring station room. The area of the newly-
built monitoring station room shall meet the functional needs of different
monitoring station room and ensure the placement, operation and maintenance
of the wastewater on-line monitoring system. The use area shall not be less
than 15m2, and the height of the station building shall not be less than 2.8m.
See Annex B for the recommended scheme.
5.3.6 The monitoring station room shall be equipped with well-standardized
grounding devices and lightning protection measures, anti-theft facilities and
facilities to prevent human damage. The construction of the grounding device
installation project shall meet the relevant requirements of GB 50169.The
lightning protection design of buildings shall meet the relevant requirements of
GB 50057.
5.3.7 The monitoring station room shall be equipped with fire extinguisher box,
portable carbon dioxide fire extinguisher, dry powder fire extinguisher or sand
bucket, which shall be arranged according to fire-related requirements.
5.3.8 The monitoring station room shall not be located in blind communication
areas. It shall be able to achieve data transmission.
5.4 Automatic water sampling unit
5.4.1 The automatic water sampling unit shall have the functions to collect
instantaneous sample and composite sample, mix well and temporarily store
water sample, automatically rinse and empty the mixing bucket, as well as keep
samples.
5.4.2 The pH automatic water quality analyzer and thermometer shall measure
in situ or measure instantaneous sample.
5.4.7 The automatic water sampling unit shall use high-quality polyvinyl chloride
(PVC), tripropylene polypropylene (PPR) and other rigid pipes that do not affect
the analysis result.
5.4.8 When using an open channel flow meter to measure the flow, the water
inlet of automatic water sampling unit shall be set in front of the weir, and the
place where it shall be fully mixed after confluence.
5.4.9 The sampling pump shall be reasonably selected according to the
sampling flow rate, the head loss of the automatic water sampling unit and the
water level difference. It shall use the sampling pumps that have a long service
life, are easy to maintain and have no effect on water quality parameters. The
installation location shall facilitate the maintenance of the sampling pump.
5.5 Data control unit
5.5.1 The data control unit can coordinate and operate the wastewater on-line
monitoring system. Collect, store and display monitoring data and running
record, and upload pollution source monitoring data to the monitoring center
platform. The specific schematic is shown in Figure 2.
6 Installation requirements for wastewater on-line monitoring equipment
6.1 Basic requirements
6.1.1 The working voltage is single-phase (220 ± 22) VA, and the frequency is
(50 ± 0.5) Hz.
6.1.2 Comply with RS-232, RS-485, and specific requirements are according to
HJ 212.
6.2 Other requirements
6.2.1 Protective pipes shall be added to various cables and pipes of wastewater
on-line monitoring equipment. The protective pipes shall be laid underground
or erected in the air. The cables erected in the air shall be attached to a solid
bridge. Establish obvious marks on the cables and pipes, as well as on both
ends of the cables and pipes. The construction of cable lines shall meet the
relevant requirements of GB 50168.
6.3 Flowmeter
6.3.1 Use open channel flowmeter to measure the flow. Construct or install
standard measuring weirs (flumes) in accordance with technical requirements
such as JJG 711, CJ/T 3008.1, CJ/T 3008.2, CJ/T 3008.3 and pass the
verification of measurement department. See Annex D for installation
specifications of main flow weirs.
6.5.3 The cable connection between the automatic water quality analyzer and
the data control system shall be reliable and stable. Try to minimize signal
transmission distance and reduce signal loss.
6.5.4 The high-pressure gas cylinders necessary for the operation of automatic
water quality analyzer shall be firmly fixed to prevent the cylinders from falling.
If conditions permit, it can set up cylinder rooms.
6.5.5 The CODCr, TOC, NH3-N, TP, TN automatic water quality analyzer can
automatically adjust the zero point and calibration range value. The interval
between two calibrations is not less than 24h.
7 Debugging requirements
7.1 Basic requirements
7.1.1 After the construction of wastewater on-line monitoring system, it needs
to debug flowmeter, automatic water quality sampler, automatic water quality
analyzer, and report data in parallel on the Internet.
7.1.2 The display result of the data control unit shall be consistent with the
measuring instrument, so as to make easy access to various reports specified
in this Standard.
7.1.5 The automatic water quality analyzer shall select the range according to
the discharge concentration of the sewage enterprise. Conduct the tests of 24h
drift, repeatability and indication value error according to the method in sub-
clause 7.2.Conduct the comparison test of actual samples according to the
method specified in 6.3 of HJ 354-2019.
7.2 Debugging method
7.2.1 24h drift
CODCr automatic water quality analyzer, TOC automatic water quality analyzer,
NH3-N automatic water quality analyzer, TP automatic water quality analyzer,
TN automatic water quality analyzer shall measure 24h drift according to the
following method.
7.3 Debugging indicators
7.3.1 Each indicator of wastewater on-line monitoring equipment shall meet the
debugging effect required in Table 3.The TOC automatic water quality analyzer
is implemented according to the CODCr automatic water quality analyzer.
7.3.2 Prepare the debugging report of wastewater on-line monitoring system,
as shown in Annex F.
8 Requirements for trial operation
8.1 It shall, according to the discharge characteristics and construction of actual
wastewater, prepare the running and maintenance schemes as well as
corresponding recording sheets of wastewater on-line monitoring system.
8.5 The data transmission rate during trial operation shall not be less than 90%.
8.6 The data control system has been correctly connected to the wastewater
on-line monitoring equipment and begun to send data to the monitoring center
platform.
8.7 Prepare the trial operation report of wastewater on-line monitoring system,
as shown in Annex G.
NATIONAL ENVIRONMENTAL PROTECTION STANDARD
Replacing HJ/T 353-2007
Technical specification for installation 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 of application... 5
2 Normative references... 5
3 Terms and definitions... 7
4 Composition of wastewater on-line monitoring system... 8
5 Construction requirements... 9
6 Installation requirements for wastewater on-line monitoring equipment... 13
7 Debugging requirements... 16
8 Requirements for trial operation... 19
Annex A (normative) Determination of TOC and CODCr conversion coefficients
... 22
Annex B (informative) Monitoring station room layout... 27
Annex C (informative) Statistics of wastewater on-line monitoring system... 29
Annex D (informative) Installation specifications on standard metering weir
(flume)... 32
Annex E (informative) Enterprise sewage and wastewater on-line monitoring
equipment situation... 45
Annex F (informative) Debugging report of wastewater on-line monitoring
equipment... 47
Annex G (informative) Trail operation report of wastewater on-line monitoring
system... 51
1 Scope of application
This Standard specifies the composition of wastewater on-line monitoring
system, construction requirements for wastewater discharge outlets, flow
monitoring units, monitoring stations, automatic water quality sampling units
and data control units, installation requirements for flow meter, automatic water
quality sampler and automatic water quality analyzer, as well as technical
requirements for debugging and trial operation of wastewater on-line monitoring
system.
This Standard is applicable to the construction of components of wastewater
on-line monitoring system (CODCr, NH3-N et al.), as well as the installation,
debugging and trial operation of wastewater on-line monitoring equipment such
as used flow meter, water quality automatic sampler, chemical oxygen demand
(CODCr) automatic water quality analyzer, total organic carbon (TOC) automatic
water quality analyzer, ammonia nitrogen (NH3-N) automatic water quality
analyzer, total phosphorus (TP) water quality automatic analysis Meter, total
nitrogen (TN) automatic water quality analyzer, thermometer, pH automatic
water quality analyzer.
The wastewater on-line monitoring system (CODCr, NH3-N et al.) standardized
in this Standard is applicable to the on-line monitoring of chemical oxygen
demand (CODCr), ammonia nitrogen (NH3-N), total phosphorus (TP), total
nitrogen (TN), pH, temperature and flow monitoring factors.
2 Normative references
The following documents contain the provisions which, through reference in this
Standard, become the provisions of this Standard. For undated reference
documents, the latest versions apply to this Standard.
GB 15562.1, Graphical signs for environmental protection - Discharge outlet
(source)
GB 50057, Design Code for Protection of Structures against Lightning
GB 50093, Code for construction and quality acceptance of automation
instrumentation engineering
GB 50168, Standard for construction and acceptance of cable line electric
equipment installation engineering
GB 50169, Code for construction and acceptance of grounding connection
electric equipment installation engineering
GB/T 17214, Industrial-process measurement and control equipment -
Operating conditions
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 wastewater on-line monitoring system
A system that consists of software and hardware facilities to implement
functions such as wastewater flow monitoring, wastewater sample collection,
wastewater sample analysis, analysis data statistics and upload.
3.2 wastewater on-line monitoring equipment
The instruments, meters in wastewater on-line monitoring system that are used
to conduct on-line continuous monitoring on pollutant concentrations and
emissions.
3.3 instantaneous sample
The water sample that is collected at one time at a sampling point.
3.4 composite sample
A mixture of water samples that are collected at a same sampling point
continuously or at different times.
4 Composition of wastewater on-line monitoring system
The wastewater on-line monitoring system mainly consists of four parts. flow
monitoring unit, automatic water sampling unit, wastewater on-line monitoring
equipment, data control unit and corresponding building facilities, as shown in
Figure 1.
5 Construction requirements
5.1 Wastewater discharge outlet
5.1.1 According to the layout principles in HJ 91.1, select the location of the
wastewater discharge outlet.
5.1.2 The discharge outlet shall be equipped with environmental protection
graphic signs in accordance with the requirements of GB 15562.1.
5.1.3 The discharge outlet shall be able to meet the construction requirements
of the flow monitoring unit.
5.1.4 The discharge outlet shall be able to meet the construction requirements
for automatic water sampling unit.
5.2 Flow monitoring unit
5.2.1 It needs to measure the sewage unit of flow. According to the terrain and
drainage method as well as the amount of drainage, it shall, at the position
where the upstream of its discharge outlet can contain all sewage beams,
construct a flow measurement section of special channel (pipe), so as to meet
the requirements of measuring flow and velocity.
5.3 Monitoring station room
5.3.1 There shall be a dedicated monitoring station room. The area of the newly-
built monitoring station room shall meet the functional needs of different
monitoring station room and ensure the placement, operation and maintenance
of the wastewater on-line monitoring system. The use area shall not be less
than 15m2, and the height of the station building shall not be less than 2.8m.
See Annex B for the recommended scheme.
5.3.6 The monitoring station room shall be equipped with well-standardized
grounding devices and lightning protection measures, anti-theft facilities and
facilities to prevent human damage. The construction of the grounding device
installation project shall meet the relevant requirements of GB 50169.The
lightning protection design of buildings shall meet the relevant requirements of
GB 50057.
5.3.7 The monitoring station room shall be equipped with fire extinguisher box,
portable carbon dioxide fire extinguisher, dry powder fire extinguisher or sand
bucket, which shall be arranged according to fire-related requirements.
5.3.8 The monitoring station room shall not be located in blind communication
areas. It shall be able to achieve data transmission.
5.4 Automatic water sampling unit
5.4.1 The automatic water sampling unit shall have the functions to collect
instantaneous sample and composite sample, mix well and temporarily store
water sample, automatically rinse and empty the mixing bucket, as well as keep
samples.
5.4.2 The pH automatic water quality analyzer and thermometer shall measure
in situ or measure instantaneous sample.
5.4.7 The automatic water sampling unit shall use high-quality polyvinyl chloride
(PVC), tripropylene polypropylene (PPR) and other rigid pipes that do not affect
the analysis result.
5.4.8 When using an open channel flow meter to measure the flow, the water
inlet of automatic water sampling unit shall be set in front of the weir, and the
place where it shall be fully mixed after confluence.
5.4.9 The sampling pump shall be reasonably selected according to the
sampling flow rate, the head loss of the automatic water sampling unit and the
water level difference. It shall use the sampling pumps that have a long service
life, are easy to maintain and have no effect on water quality parameters. The
installation location shall facilitate the maintenance of the sampling pump.
5.5 Data control unit
5.5.1 The data control unit can coordinate and operate the wastewater on-line
monitoring system. Collect, store and display monitoring data and running
record, and upload pollution source monitoring data to the monitoring center
platform. The specific schematic is shown in Figure 2.
6 Installation requirements for wastewater on-line monitoring equipment
6.1 Basic requirements
6.1.1 The working voltage is single-phase (220 ± 22) VA, and the frequency is
(50 ± 0.5) Hz.
6.1.2 Comply with RS-232, RS-485, and specific requirements are according to
HJ 212.
6.2 Other requirements
6.2.1 Protective pipes shall be added to various cables and pipes of wastewater
on-line monitoring equipment. The protective pipes shall be laid underground
or erected in the air. The cables erected in the air shall be attached to a solid
bridge. Establish obvious marks on the cables and pipes, as well as on both
ends of the cables and pipes. The construction of cable lines shall meet the
relevant requirements of GB 50168.
6.3 Flowmeter
6.3.1 Use open channel flowmeter to measure the flow. Construct or install
standard measuring weirs (flumes) in accordance with technical requirements
such as JJG 711, CJ/T 3008.1, CJ/T 3008.2, CJ/T 3008.3 and pass the
verification of measurement department. See Annex D for installation
specifications of main flow weirs.
6.5.3 The cable connection between the automatic water quality analyzer and
the data control system shall be reliable and stable. Try to minimize signal
transmission distance and reduce signal loss.
6.5.4 The high-pressure gas cylinders necessary for the operation of automatic
water quality analyzer shall be firmly fixed to prevent the cylinders from falling.
If conditions permit, it can set up cylinder rooms.
6.5.5 The CODCr, TOC, NH3-N, TP, TN automatic water quality analyzer can
automatically adjust the zero point and calibration range value. The interval
between two calibrations is not less than 24h.
7 Debugging requirements
7.1 Basic requirements
7.1.1 After the construction of wastewater on-line monitoring system, it needs
to debug flowmeter, automatic water quality sampler, automatic water quality
analyzer, and report data in parallel on the Internet.
7.1.2 The display result of the data control unit shall be consistent with the
measuring instrument, so as to make easy access to various reports specified
in this Standard.
7.1.5 The automatic water quality analyzer shall select the range according to
the discharge concentration of the sewage enterprise. Conduct the tests of 24h
drift, repeatability and indication value error according to the method in sub-
clause 7.2.Conduct the comparison test of actual samples according to the
method specified in 6.3 of HJ 354-2019.
7.2 Debugging method
7.2.1 24h drift
CODCr automatic water quality analyzer, TOC automatic water quality analyzer,
NH3-N automatic water quality analyzer, TP automatic water quality analyzer,
TN automatic water quality analyzer shall measure 24h drift according to the
following method.
7.3 Debugging indicators
7.3.1 Each indicator of wastewater on-line monitoring equipment shall meet the
debugging effect required in Table 3.The TOC automatic water quality analyzer
is implemented according to the CODCr automatic water quality analyzer.
7.3.2 Prepare the debugging report of wastewater on-line monitoring system,
as shown in Annex F.
8 Requirements for trial operation
8.1 It shall, according to the discharge characteristics and construction of actual
wastewater, prepare the running and maintenance schemes as well as
corresponding recording sheets of wastewater on-line monitoring system.
8.5 The data transmission rate during trial operation shall not be less than 90%.
8.6 The data control system has been correctly connected to the wastewater
on-line monitoring equipment and begun to send data to the monitoring center
platform.
8.7 Prepare the trial operation report of wastewater on-line monitoring system,
as shown in Annex G.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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