HJ 353-2019 English PDF (HJ353-2019)

Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click HJ 353-2019
Historical versions: HJ 353-2019
Preview True-PDF (Reload/Scroll if blank)

HJ 353-2019: Technical specification for installation of wastewater on-line monitoring system (CODCr, NH3-N et al.)
HJ 353-2019
NATIONAL ENVIRONMENTAL PROTECTION STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
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 
Technical specification for installation of wastewater
on-line monitoring system (CODCr, NH3-N et al.)
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
HJ 15, Technical specifications and test procedures for ultrasonic open
channel sewage flowmeter
HJ 91.1, Technical specifications for wastewater monitoring
HJ 101, Technical specifications and test procedures for water quality on-line
automatic monitoring equipment of ammonia
HJ 212, Data transmission standard for on-line monitoring systems of
pollutant
HJ 354-2019, Technical specification for check and acceptance of
wastewater on-line monitoring system (CODCr, NH3-N et al.)
HJ 355-2019, Technical specification for operation of wastewater on-line
monitoring system (CODCr, NH3-N et al.)
HJ 377, Technical specifications and test procedures for water quality on-line
automatic monitoring equipment of chemical oxygen demand (CODCr)
HJ 477, The Technical Requirement for Data Acquisition and Transmission
Equipment of Pollution Emission Auto Monitoring System
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
HJ/T 96, The technical requirement for automatic water quality analyzer of
PH
HJ/T 102, The technical requirement for automatic water quality analyzer of
total nitrogen
HJ/T 103, The technical requirement for automatic water quality analyzer of
total phosphorous
HJ/T 104, The technical requirement for automatic water quality analyzer of
total organic carbon
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.
5.1.5 If it uses concealed pipes or underdrains for discharge, it shall need to set
up a shaft or build an open channel that can meet the manual sampling
conditions. If the sewage surface is above 1m below the ground level, it shall
be equipped with sampling steps or ladder frames. The pressure pipeline type
discharge port shall be equipped with a sampling valve that meets the
conditions of manual sampling.
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.
5.2.2 Generally, it can install standardized measuring weirs (flumes) such as
triangular thin-wall weirs, rectangular thin-wall weirs, and Parshall flume.
5.2.3 The construction of standardized metering weirs (flumes) shall be able to
remove deposits near the weir plate and compare open channel flowmeters.
5.2.4 The construction of pipe flowmeter shall make that: there shall be
sufficient length and space around the pipeline to meet the metering verification
and manual comparison of pipeline flowmeters.
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.
5.3.2 The monitoring station room shall be as close as possible to the sampling
point. The distance from the sampling point shall be less than 50m.
5.3.3 It shall install air-conditioning and winter heatin...