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 !