Overview

Enterprise outfall — lateral network — main outfall three-level system

For chemical, electroplating, metallurgy, pharma, and dyeing parks: national-method online analyzers, ultrasonic flow meters, automatic samplers, and multi-parameter monitors keep COD, ammonia, TP, TN, metals, pH, and flow online. The scheme follows total-load monitoring rules and HJ standards. Data use HJ 212 and connect to ecology platforms. Auto retention, graded warnings, load accounting, and source tracing support compliance, permits, risk control, and enforcement — wastewater discharge that can be seen, traced, and controlled.

UsersWho it is for

Park administration Ecology bureau Discharging producers Environmental O&M providers System integrator

NodesMonitoring points

Enterprise outfall Park lateral-network nodes Park main outfall WWTP inlet/outlet Characteristic-pollutant sections

Six in-house core products, combined and placed by grade

Built around park wastewater compliance, accuracy, and tracing: conventional pollutants, characteristic metals, flow metering, auto retention, full-spectrum warning, and integrated stations.

ZXcm-500

Online analyzer series (COD/ammonia/TP/TN)

Park-outfall conventional pollutants · assessment-grade core equipment

Classic national method: COD Dichromate method HJ 377-2019, ammonia Salicylic acid spectrophotometry HJ 101-2019, TP by ammonium molybdate spectrophotometry, TN by alkaline persulfate UV, meeting environmental acceptance
Photoelectric metering + high-T/P digestion + colorimetry, low LOD, strong adaptability
Turbidity/color immunity for complex wastewater; low reagent, waste separation, lower opex
Auto wash/calibrate, lamp self-cal, self-diagnosis, remote O&M
CCEP certified, history ≥3 years, traceable and comparable

Main-outfall assessmentEnterprise-outfall complianceWWTP inlet/outlet

ZXcm-500

Heavy-metal online analyzer series

Metal-related park characteristic pollutants · standard kit

Total Cr/Fe/Pb/Zn/Cd/As/Hg/Cu and hexavalent chromium, for electroplating, metallurgy, chemical, and tanning
Photoelectric metering + high-T/P digestion + colorimetry, accuracy ≤±10%, low LOD, stable data
Modular factor switching by park discharge profile
Anomaly alarms, power-loss data protection; supports RS232/RS485, 4-20mA output

Metal-related enterprise outfallsCharacteristic-metal controlElectroplating-park special

ZYAT-610

automatic water sampler

Exceedance retention and enforcement evidence · key accessory

Supports 1–25 bottles split-bottle retention, bottle count settable, per-bottle 10–1000 ml adjustable
Timed / time-proportional / flow-proportional / flow-tracking / external trigger, linked to online analyzers for auto and sync retention
Built-in holding vessel for a continuous mixed, representative sample
4±2℃ Chilled storage, parameters kept through power loss, auto-resume; horizontal sample distance ≤260 m

Exceedance retention evidenceEnforcement compare samplingFlow-proportional mix sampling

ZYS-F12

Ultrasonic Doppler flow meter

Outfall flow metering and total-load accounting · standard kit

Ultrasonic Doppler velocity/depth/temperature; velocity-area instantaneous + totalized flow
3cm Slim hydrofoil, zero dead band, stable at low level and low flow, bidirectional
IP68, Class 10 corrosion resistance, intrinsic safety for chemical/metallurgy outfalls
No moving parts, no silt jam/wrap, long low maintenance; full/partial pipe and open channel

Outfall flow meteringTotal-load accountingOpen-channel / pipe flow

ZYS-1000C

Full-spectrum multi-parameter analyzer

Network process monitoring and fast warning · efficient equipment

200–800nm UV-Vis full-spectrum scan for COD/BOD/TOC/nitrate-N/turbidity/color/SS in one pass
Reagent-free, no digestion, cycle about 3s, truly continuous, for quality-swing warnings
Dual-path probe, stable data; self-clean, long low maintenance, no secondary pollution
Extractive / in-situ install for networks, process, outfalls

Network quality warningProcess monitoringSource tracing and fast screeningBlack-odorous water

ZY5510

Micro automatic water-quality station

Park main outfall / boundary section · integrated station

Integrated cabinet, footprint ≤2㎡, factory pre-assembled, live when power and water are on, short build
Can integrate five conventional parameters, COD, ammonia, TP, TN, and metals; expand as needed
Built-in sampling/distribution/pretreatment, cabinet IP55, with temperature control for outdoor sites
QC, data flags, remote control; output meets HJ 212

Main-outfall assessment stationPark boundary sectionOutdoor points without a shelter

System architecture

Three-layer architecture, control from source to end

L3

Application layer

Live monitoringExceedance warningLoad accountingSource tracing Enforcement evidenceStatistical reportsO&M managementData reportingMobile app

L2

Network layer

4G / Ethernet private lineResume on disconnectData encryptionHJ 212 protocol

L1

Sensing layer

Online analyzers: COD/ammonia/TP/TN/metalsMulti-parameter: pH/DO/conductivity/turbidity/full spectrum Metering/sampling: ultrasonic flow meter / auto samplerShelter: micro station / field cabinet

Sensing → network → platform · data up, commands down

Point product configuration

Standard product sets for each monitoring node

Monitoring points	Recommended products	Core parameters	Key value
Enterprise outfall Routine	ZXcm-500 COD/ammonia + ZYS-F12 Flow meter + ZYAT-610 Sampler	COD, ammonia, instantaneous/totalized flow, pH, exceedance retention	National-method compliance, quality and quantity together, auto retain on exceedance
Metal-related enterprise outfalls	ZXcm-500 Metals + conventional multi-parameter + flow meter + sampler	Characteristic metals, pH, flow, retention	Precise control of characteristic pollutants, data for special rules
Park lateral-network nodes	ZYS-1000C Full spectrum + flow meter	COD, TOC, turbidity, nitrate-N, flow	High-frequency live monitoring to catch swings and support tracing
Park main outfall Assessment	ZY5510 Micro station (nine parameters) + flow meter + sampler	Five conventional parameters, COD, ammonia, TP, TN, flow	Integrated standard station, compliant traceable data for assessment and acceptance
WWTP inlet/outlet	ZXcm-500 Online analyzer series + multi-parameter monitor + flow meter	COD, ammonia, TP, TN, pH, DO, MLSS, flow	Full-process monitoring for optimization and compliance

Key advantages

Compliant, accurate, traceable — the full discharge-supervision chain

National-method compliance · inspection-ready

Chemical indicators use national methods. Instruments hold CCEP certification. Data are comparable and traceable for acceptance and surprise checks. Three-level verification, auto QC, and data flags; HJ 212 output to regulator platforms.

Full parameter coverage · multi-industry fit

More than 20 factors across composite indicators, nutrients, and metals. Configure by industry (chemical / electroplating / pharma / dyeing). Modular expansion, no whole-unit swap.

Measure-and-retain · enforcement loop

Online analyzers link to auto samplers. Exceedance triggers retention and locks the evidence chain. Flow-tracking and proportional mix keep samples representative. Sample logs match monitoring timestamps.

Quantity and quality together · accurate load accounting

Monitoring and metering together auto-account instantaneous and total load. Stats by time, enterprise, and factor support permits and load control. The platform visualizes totals and automates ledgers.

Graded warning · risk control early

Graded warnings on concentration, rate of change, and total load, pushed on several channels. Multi-node network data plus water-quality fingerprints help tracing. Shift from after-the-fact response to early warning, cutting risk and penalties.

Low O&M · lower life-cycle cost

Low reagent use and waste separation cut hazardous waste and opex. Auto wash/calibrate and self-diagnosis reduce field visits. Remote setup/upgrade/control. Modular swaps shorten downtime.

Main functions

A full function set from live monitoring to enforcement support

Live monitoring and visualization

All parameters live on screen: live COD, ammonia, TP, TN, metals, pH, flow, and more
GIS overview: map of every park point, live data, and run status
Auto discharge ledgers: auto daily/monthly/yearly outfall loads as a compliance ledger

Exceedance warning and alarm

Graded warning mechanism: level-1 warning, level-2 exceedance, level-3 overload, graded action
Multi-dimension alarms: concentration exceedance, load exceedance, faults, reagent-low, data anomalies
Multi-channel push: platform pop-up, SMS, WeChat, email, and more

Stats and total-load control

Trend analysis: quality and flow trends, multi-dimension history query and export
Load accounting: auto totals by factor/outfall/period for permit management
Benchmark analysis: discharge vs standard and permitted load, auto compliance rate

Tracing and enforcement support

Exceedance-retention link: exceedance auto-triggers sampling; data and sample timestamps match
Network source tracing: multi-node data to help locate abnormal dischargers
Enforcement reports: one-tap enforcement reports of events, discharge, and retention

O&M and data connection

Full equipment life-cycle management: instrument files, cal records, maintenance logs, reagent changes in one place
O&M work-order loop: alarm dispatch, field handling, result feedback as a loop
Standard interfaces: HJ 212, Modbus, MQTT, open API to third-party platforms

Three-level warning response

L1 · warningNear the limit, attention needed
L2 · exceedanceTrigger alarm and auto retention
L3 · overloadMulti-channel push, lock the evidence chain

Typical specifications

Core parameters · methods · range · accuracy

Parameters	Test method	Measuring range	Accuracy
COD	Dichromate method HJ 377-2019	15~1000 mg/L(expandable)	≤±10%
Ammonia	Salicylic acid spectrophotometry HJ 101-2019	0.1~100 mg/L(expandable)	≤±10%
TP	Ammonium molybdate spectrophotometry	0.02~50 mg/L(expandable)	≤±10%
TN	Alkaline persulfate UV spectrophotometry	0.2~50 mg/L(expandable)	≤±10%
Metals (Pb/Cd/Cr and more)	Spectrophotometry (varies slightly by factor)	0~20 mg/L(ranges)	≤±10% or 0.2 mg/L
pH	Glass-electrode method	0~14 pH	±0.01 pH
Flow (Doppler)	Velocity-area method	Velocity 0.02~6 m/s	±3% FS(standard section)
Full-spectrum multi-parameter	UV-Vis full-spectrum method	COD/BOD/TOC/nitrate-N/turbidity and more	Correlation vs laboratory ≥0.9
Automatic sampler	—	1–25 bottles, 10–1000 ml/bottle	Retention-volume error ≤±7%
Valid-data rate	—	—	≥90%

Scenarios · Typical applications

Six core scenes for park wastewater supervision

01

Park main-outfall assessment monitoring

Standard stations for nine parameters + flow, meeting assessment and reporting.

02

Enterprise outfall compliance monitoring

Online monitoring + sampling + flow at park dischargers, putting responsibility on the emitter.

03

Metal-related park special monitoring

Watch characteristic metals, cut metal-related risk, meet special-control rules.

04

Park-network quality and quantity

Grid nodes watch network quality and support tracing and O&M.

05

WWTP inlet/outlet monitoring

Monitor inlet, outlet, and key process sections for optimization and stable compliance.

06

Environmental enforcement and emergency monitoring

Portable kits and retention support enforcement compare and sudden-pollution response.

Get the solution

Point layouts customized to park discharge

Survey, selection, integration, and hosted O&M as one service so parks can see, trace, and control wastewater discharge.

Park administrationEcology bureauDischarging enterprisesO&M providersSystem integrator

Hotline400-000-0000

Technical supportsupport@example.com

Service scopeSelection · integration · hosted O&M

Get a custom configuration

Industrial-park wastewater dischargeonline monitoring solution