HOME   Cart(1)   Quotation   About-Us Tax PDFs Standard-List
Powered by Google-Search & Google-Books www.ChineseStandard.net Database: 189759 (27 Nov 2022)

HJ 354-2019 (HJ354-2019)

Standard IDContents [version]USDSTEP2[PDF] delivered inName of Chinese StandardStatus
HJ 354-2019English500 Add to Cart 0--3 minutes. Auto-delivery. Technical specification for check and acceptance of wastewater on-line monitoring system (CODCr, NH3-N et al.) Valid


HJ 354-2019: PDF in English
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 power is on.
5.3.3 The area of the newly-built monitoring station building shall not be less
than 15 m2; the height of the station shall not be less than 2.8 m. All instruments
and equipment shall be placed reasonably, which can facilitate maintenance
and repair.
5.3.4 The distance between the monitoring station and the sampling point shall
not be greater than 50 m.
5.3.5 The foundation load intensity, area, space height and ground elevation of
the monitoring station building meet the requirements.
5.3.6 There are safe and qualified power distribution equipment in the
monitoring station building; the power load provided is not less than 5 kW; it is
equipped with a regulated power supply.
5.3.7 The power supply lead-in line of the monitoring station uses lighting power;
the power supply line has a surge protector; the power supply shall be clearly
marked; the ground wire is firm and clearly marked.
5.3.8 The power supply of the monitoring station is provided with a master
switch; each instrument is provided with an independent control switch.
5.3.9 There are qualified water supply and drainage facilities in the monitoring
station building, which can use tap water to clean the instruments and related
devices.
records; upload the wastewater monitoring data to the monitoring center
platform.
5.5.2 It can receive the commend from the platform of the monitoring center;
realize the control of the wastewater online monitoring system. If the automatic
water sampling unit is triggered to take sample, the wastewater online
monitoring instrument performs measurement, standard solution verification,
calibration and other operations.
5.5.3 It is possible to read and display the real-time measurement data of each
wastewater online monitoring instrument.
5.5.4 It can query and display: hourly change range and daily change range of
pH value, hourly accumulated flow rate and daily accumulated flow rate, hourly
average temperature and daily average temperature, hourly value and daily
average value of CODCr, NH3-N, TP, TN; meanwhile use the data acquisition
and transmission instrument to upload to the platform of monitoring center.
5.5.5 The uploaded pollution source monitoring data is marked with time and
data status, which complies with clause 6.2 of HJ 355-2019.
5.5.6 It can generate and display the daily statistics table, monthly statistics
table and annual statistics table of the monitoring data of various wastewater
online monitoring instruments.
6 Acceptance requirements for wastewater online
monitoring equipment
6.1 Basic acceptance requirements
6.1.1 The various cables and pipes of the wastewater online monitoring
instrument shall be protected by pipes laid in the ground or erected in the air.
The cables erected in the air shall be attached to a solid bridge frame; the
cables, pipes, as well as both ends of the cables, pipes are clearly marked. The
construction of cable lines shall meet the relevant requirements of GB/T 50168.
6.1.2 When necessary (such as lightning-prone areas in the south), equipment
and power supplies are provided with lightning protection facilities.
6.1.3 All instruments and equipment are installed on the floor or wall. There are
necessary anti-vibration measures to ensure that the equipment installation is
firm and stable.
6.1.4 Leave enough space around the instrument to facilitate instrument
maintenance.
6.1.5 For the requirements not mentioned here, refer to the relevant content of
the corresponding instruction manual of the instrument and shall meet the
relevant requirements of GB/T 50093.
6.2 Functional acceptance requirements
6.2.1 It has time setting, proofreading and display functions.
6.2.2 It has automatic zero calibration (positive) function and span calibration
(positive) function; meanwhile it has a calibration record. The calibration record
shall include the calibration time, calibration concentration, main parameters
before and after calibration, etc.
6.2.3 It shall be capable of displaying, storing and outputting test data.
6.2.4 It shall be possible to set a three-level system login password and
corresponding operation authority.
6.2.5 When the power is accidentally cut off and turned on again, it shall be
able to automatically discharge the remaining samples, reagents, etc. in the
system, automatically clean it, automatically reset to the state of restarting the
measurement.
6.2.6 It shall have fault alarm, display and diagnosis functions; it shall have
automatic protection functions and shall be able to output fault alarm signals to
the remote control network.
6.2.7 It shall have limit alarm and alarm signal output functions.
6.2.8 It shall have the functions of receiving external trigger commands from
remote control network and starting analysis.
6.3 Performance acceptance method
6.3.1 Level comparison error
Use a portable open-channel flowmeter comparison device (level measurement
accuracy ≤ 0.1 mm) and an ultrasonic open-channel flowmeter to measure the
liquid level at the observation cross-section at same water level; conduct a
comparison test; record data pairs every 2 minutes; record 6 consecutive times;
use the formula below to calculate the error value Hi of each data pair; select
the maximum Hi as the level comparison error of the flowmeter.
Wherein:
Hi - Level comparison error, mm;
transmission, to guarantee the security of data transmission. One end requests
a connection and the other end shall authenticate.
7.3 Correctness of communication protocol
The communication protocol used shall fully comply with the relevant
requirements of HJ 212.
7.4 Correctness of data transmission
After the system has been running stably for one month, any data that is not
less than 7 consecutive days can be taken for inspection. It is required that the
data received by the monitoring center platform and the data collected and
stored by the data control unit are completely consistent; at the same time,
check the measured value as stored by the online continuous automatic
analysis equipment of wastewater, the data as collected and stored by the data
control unit, the data as received by the platform of the monitoring center. The
real-time data error of the 3 links is less than 1%.
7.5 Network stability
Within a continuous month, the system can run stably without any other
connecting-network problems except communication stability, correctness of
communication protocols, correctness of data transmission.
7.6 Requirements for field failure simulation recovery test
During the on-site acceptance of the automatic wastewater online continuous
monitoring system, artificially simulate the failures such as on-site power failure,
water and gas outages. After external conditions such as power supply are
restored, the automatic wastewater online continuous monitoring system shall
be able to start normally and remotely. The analysis results of the complete
analysis before the failure are stored in the data control unit and are not lost
during the failure. The data control system completely records all fault
information.
7.7 Measurement frequency and measurement result report
It can automatically generate daily statistics, monthly statistics and annual
statistics according to the requirements. For the report format, refer to Appendix
C of HJ 353-2019.
8 Acceptance requirements for operation and
maintenance program
8.1 The operation and maintenance program shall include a description of the
wastewater online monitoring system, operation and maintenance work
instructions and record forms; form a written document for effective
management.
8.2 The description of the wastewater online monitoring system shall include at
least the following: basic information of the sewage unit, the water pollution
online monitoring system’s composition diagram, the automatic water sampling
system’s flow diagram, the data control system’s composition diagram, the
installed wastewater online monitoring instrument’s method, principles,
selected ranges, main parameters, reagents used, as well as the maintenance
points and procedures for each component established in accordance with HJ
355.
8.3 The contents of the operation and maintenance instructions shall include at
least the following: maintenance methods of various components of the online
water pollution monitoring system, operation methods of installed wastewater
online monitoring instruments, reagent preparation methods, maintenance
methods, flow monitoring units, maintenance method of automatic sample
acquisition unit and data control unit.
8.4 The record form shall meet the setting requirements in the operation and
maintenance work instructions.
9 Requirements for preparation of acceptance report
9.1 For the format of the acceptance report, see Appendix A.
9.2 For the comparison monitoring report format, see Appendix B.
9.3 The acceptance report shall be accompanied by an acceptance comparison
monitoring report, a network certification, an installation and commissioning
report.
9.4 The acceptance report shall not pass until the contents of the acceptance
report are all qualified or consistent.
I. Introduction
Basic situation of the enterprise;
Basic situation of product production;
Basic situation of pollution control facilities;
Automatic monitoring equipment manufacturer, equipment name, equipment
model.
(Testing organization) had carried out comparison monitoring of the wastewater
online continuous automatic monitoring system/equipment which was installed
by this company at the location of □□□□□□□ from □□ year □□ month □□ day to
□□ month □□ day.
II. Basis of monitoring
(1) HJ 91.1 Technical specifications for wastewater monitoring
(2) HJ/T 92 Technical requirements for monitoring of total amount of pollutants
in wastewater
(3) HJ/T 273 Technical specifications for quality assurance and quality control
of stationary pollution sources
(4) CJ/T 3008.1 ~ 5 Standards for municipal wastewater discharge
measurement
(5) JJG 711 Verification regulation of weirs and flumes for flow measurement
(6) HJ 828 Water quality - Determination of chemical oxygen demand -
Dichromate method
(7) HJ/T 70 High-chlorine wastewater - Determination of chemical oxygen
demand - Chlorine emendation method
(8) HJ 535 Water quality - Determination of ammonia nitrogen - Nessler's
reagent spectrophotometry
(9) HJ 536 Water quality - Determination of ammonia nitrogen - Salicylic acid
spectrophotometry
(10) GB/T 11893 Water quality - Determination of total phosphorus - Ammonium
molybdate spectrophotometric method
(11) HJ 636 Water quality - Determination of total nitrogen, alkaline, potassium,
persulfate digestion UV spectrophotometric method
......
(Above excerpt was released on 2020-02-09, modified on 2021-06-07, translated/reviewed by: Wayne Zheng et al.)
Source: https://www.chinesestandard.net/PDF.aspx/HJ354-2019