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HJ 354-2019: Technical specification for check and acceptance of wastewater on-line monitoring system (CODCr, NH3-N et al.) Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid HJ 354: Historical versions
HJ 354-2019: Technical specification for check and acceptance 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/HJ354-2019 NATIONAL ENVIRONMENTAL PROTECTION STANDARD 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 ContentsForeword... 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... 331 ScopeThis 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 referencesThis 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 spectrophotometry3 Terms and definitionsThe 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 Wastewater on-line monitoring equipment Refers to the instruments and meters used in the wastewater online monitoring system to continuously monitor the concentration and discharge of pollutants online. 3.3 Instantaneous sample Refers to the water sample collected at one time at a sampling point. 3.4 Composite sample Refers to a mixture of water samples collected at the same sampling point continuously or at different times.4 Acceptance conditions and acceptance content4.1 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. 4.1.5 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%. 4.2 Acceptance contents After the wastewater online monitoring system is installed, commissioned, and test run, and connected to the environmental protection authority, it shall undergo construction acceptance, instrument and equipment acceptance, network acceptance, operation and maintenance program acceptance.5 Construction acceptance requirements5.1 Pollution source discharge outlet 5.1.1 The layout of pollution source discharge outlets meets the requirements of HJ 91.1. 5.2 Flow monitoring unit 5.2.1 The dredging work platform is provided at the rear end of the triangular weir and the rectangular weir, which can facilitate the removal of deposits at the rear end of the weir trough. 5.2.2 There is a working platform for the inspection and comparison of ultrasonic probes at the installation place of the flowmeter, which can facilitate the maintenance and comparison of the flowmeter. 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. 5.4 Automatic water sampling unit 5.4.1 Realize the functions of collecting instantaneous samples and composite samples, mixing and temporarily storing water samples, automatic washing and emptying of the mixing bucket. 5.4.2 Realize the function of retaining composite samples and instantaneous samples. 5.4.3 Realize in-situ measurement of pH automatic water analyzer, thermometer or the measurement of instantaneous sample. 5.4.4 CODCr, TOC, NH3-N, TP, TN automatic water analyzer measures the composite sample. 5.4.5 The necessary anti-freezing or anti-corrosion facilities shall be provided. 5.4.6 Set artificial comparison sampling port for composite samples. 5.4.7 The pipes of the automatic water sampling unit are open pipes, marked with water flow direction. 5.5 Data control unit 5.5.1 The data control unit can coordinate and operate the wastewater online monitoring system; collect, store, and display monitoring data and running daily records; upload the wastewater monitoring data to the monitoring center platform.6 Acceptance requirements for wastewater online monitoring equipment6.1 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. 6.2 Functional acceptance requirements 6.2.1 It has time setting, proofreading and display functions. 6.2.4 It shall be possible to set a three-level system login password and corresponding operation authority. 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 method7 Network acceptance requirements7.1 Communication stability The communication between the data control unit and the monitoring center platform is stable; there shall be no communication problems such as frequent communication interruption, data loss, incomplete data. 7.2 Data transmission security In order to ensure the security of monitoring data transmission on the public data network, the data acquisition and transmission instrument used can follow the encryption method as specified in HJ 212 to encrypt and process the 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. 7.5 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. 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 program8.1 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. 8.3 The contents of the operation and maintenance instructions shall include at least the following. 8.4 The record form shall meet the setting requirements in the operation and maintenance work instructions.9 Requirements for preparation of acceptance report9.1 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. NATIONAL ENVIRONMENTAL PROTECTION STANDARD 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 EnvironmentTable of ContentsForeword... 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... 331 ScopeThis 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 referencesThis 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 spectrophotometry3 Terms and definitionsThe 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 Wastewater on-line monitoring equipment Refers to the instruments and meters used in the wastewater online monitoring system to continuously monitor the concentration and discharge of pollutants online. 3.3 Instantaneous sample Refers to the water sample collected at one time at a sampling point. 3.4 Composite sample Refers to a mixture of water samples collected at the same sampling point continuously or at different times.4 Acceptance conditions and acceptance content4.1 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. 4.1.5 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%. 4.2 Acceptance contents After the wastewater online monitoring system is installed, commissioned, and test run, and connected to the environmental protection authority, it shall undergo construction acceptance, instrument and equipment acceptance, network acceptance, operation and maintenance program acceptance.5 Construction acceptance requirements5.1 Pollution source discharge outlet 5.1.1 The layout of pollution source discharge outlets meets the requirements of HJ 91.1. 5.2 Flow monitoring unit 5.2.1 The dredging work platform is provided at the rear end of the triangular weir and the rectangular weir, which can facilitate the removal of deposits at the rear end of the weir trough. 5.2.2 There is a working platform for the inspection and comparison of ultrasonic probes at the installation place of the flowmeter, which can facilitate the maintenance and comparison of the flowmeter. 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. 5.4 Automatic water sampling unit 5.4.1 Realize the functions of collecting instantaneous samples and composite samples, mixing and temporarily storing water samples, automatic washing and emptying of the mixing bucket. 5.4.2 Realize the function of retaining composite samples and instantaneous samples. 5.4.3 Realize in-situ measurement of pH automatic water analyzer, thermometer or the measurement of instantaneous sample. 5.4.4 CODCr, TOC, NH3-N, TP, TN automatic water analyzer measures the composite sample. 5.4.5 The necessary anti-freezing or anti-corrosion facilities shall be provided. 5.4.6 Set artificial comparison sampling port for composite samples. 5.4.7 The pipes of the automatic water sampling unit are open pipes, marked with water flow direction. 5.5 Data control unit 5.5.1 The data control unit can coordinate and operate the wastewater online monitoring system; collect, store, and display monitoring data and running daily records; upload the wastewater monitoring data to the monitoring center platform.6 Acceptance requirements for wastewater online monitoring equipment6.1 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. 6.2 Functional acceptance requirements 6.2.1 It has time setting, proofreading and display functions. 6.2.4 It shall be possible to set a three-level system login password and corresponding operation authority. 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 method7 Network acceptance requirements7.1 Communication stability The communication between the data control unit and the monitoring center platform is stable; there shall be no communication problems such as frequent communication interruption, data loss, incomplete data. 7.2 Data transmission security In order to ensure the security of monitoring data transmission on the public data network, the data acquisition and transmission instrument used can follow the encryption method as specified in HJ 212 to encrypt and process the 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. 7.5 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. 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 program8.1 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. 8.3 The contents of the operation and maintenance instructions shall include at least the following. 8.4 The record form shall meet the setting requirements in the operation and maintenance work instructions.9 Requirements for preparation of acceptance report9.1 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. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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