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2019年1月
Digital Transformation Strategy to Smart Operation and Management of WWTPs in Beijing Enterprises Water Group
Dr. Weiyan Liu Beijing Enterprises Water Group
01 Company Profile
02 Challenges for Water Service Company
03 Digital Transformation Strategy In BEWG
Contents
Company Profile Beijing Enterprises Water Group
01
Company Profile
Beijing Enterprises Water Group(BEWG)-flagship enterprise engaged in water affairs subordinated to Beijing Enterprises Group
A comprehensive and leading professional water service and environmental protection service provider devoted to the recycling of water resources and the protection of water ecological environment and covering industrial investment, design, construction, operation, technical services and capital operation in full industrial chain.
Challenges for Water Service Company
02
increasing urbanization
Challenges for Water Service Company
aging and underfunded infrastructure spiraling energy costs
an evolving regulatory environment
Require a digital transformation to optimize its processes and operational efficiency.
Why Digital Water?
Why Digital Water?
New systems, big data, software, sensors, processors, communication and control technologies are opening up new opportunities to improve water infrastructure capital and operating efficiency, enhance public safety and health via real-time monitoring, and early detection of major and minor asset failures at a much lower cost
The future of water is digital.
Digitalization is happening everywhere and changing the way in the world, successfully applied in heavy industry, manufacturing, power, media, retail, communications, healthcare, and education.
Digital Transformation Strategy In BEWG
03
Strategy for smart management—1+N for WWTPs management
Water environment improvement project
Rural water DWTPs WWTPs
Regional management
center
smart management center
…
Work order foe equipment maintenance
Equipment management center
Management center for test
Data platform for operation
“1”--- Smart management center
“N”--- Regional management center
Op
eration d
ata
Manag
ement
advice
“1+N”决策中心（来源：北控水务数字化研究院）
City/District
River/Lake/Wetland
WWTPs/DWTPs
Pump/Pipe Network
Strategy for smart management—Comprehensive water environment management
Data Center
Smart Management
Center
Water quality Process Control
Pipe network WWTPs River
Management
DWTPs
Online Monitor
Covering all disciplines and the whole life cycle
Strategy for smart management—BECloudTM
Aim to Collect and analyze operational
data
Rapid establish the cloud
management mode
Develop model based on big data
Real-time data monitoring Operation system Equipment management system Data analysis Online simulation system
Strategy for smart control—Digital Twins
WWTPs Digital Twins (GeminiTM) V1.0
Maintenance forecast
Cost analysis
Condition forecast
Operation diagnosis Management optimization
Fault detection
The digital twins able to implement the online simulation and big data analysis technologies based on the enterprise cloud, IoT and big data platforms, which developed professional tools include water quality virtual instrument, microbiological image recognition, material balance and equipment fault diagnosis. It has established a data-driven smart machine-led model, which enable to provide the support for the implementation of high-efficiency operation and management of BEWG.
What Gemini can do?
Strategy for smart control—AI aeration system
The smart control system has developed that
consisting of activated sludge model,
feedforward, feedback, big data and
evolutionary algorithm for biological systems.
Three online data driving subsystems had been
considered: pre-treatment system, control
system and calibration system.
This smart control system has the advantages
of reasonable design, simple operation, reliable
and stable performance
Strategy for smart control—model of WWTPs
Activated sludge model
One-dimensional flux model for SST
Aeration model
Dosing model
MBR model
Energy model…
Offline simulation software
Strategy for smart control—WWTPs full process control
Kinetic parameters
Chemometric parameters
Oxygen control
Adding carbon source
phosphorus
removal dosage
WWTPs model based on
mathematical simulation
Qin,COD, TN,TP….
Qout,CODeff,TNeff,TPeff...
1. Calibrated object
Chemometric parameters
Kinetic parameters
2. Calibration method
Bayesian optimization
3. Loss function
1. Purpose
Reduce energy consumption
and material consumption in
an appropriate range
2. Adjustment object
Aeration
Chemical dosage
Excess activated sludge
Internal and external return
flow…
3. Adjustment method
Q-Learning
( )2
1 1
1 ˆn mij iji j
y ynm = =
−∑ ∑
4. Restrictions:
Stoichiometric coefficient
and kinetic coefficient are
within the reference range
… …
Model calibration
Optimal operating parameter
Strategy for smart management—1+N Case 1. Digital wastewater treatment plants Three WWTPs have one
management center All equipment is fully
automated Inspection is using work
order management Save cost 49% than before
Less workers More work Higher efficiency
Automation
Inspection Communication
Warning
Information
Monitoring
CASE STUDY
Case 2. Management Platform for Guangdong Province
Case 3. Smart Water Management Platform for Guangxi province
One management platform
Five regional management center
Thirty WWTPs upgrade
One smart management platform
for water supply company
Sixteen operation systems
Strategy for smart management—1+N CASE STUDY
The end
Thank you !
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