Guiyang Nanming River Water Environment Comprehensive ... Nanming River Water... · The Nanming...

Headquarter of Nanming River and Aha Reservoir Basin Water Environment

Comprehensive Improvement Project

Water Management Bureau of Guiyang

Song Wei

Guiyang Nanming River Water

Environment Comprehensive

Improvement Project

Project Overview 1

南明河水环境综合整治项目整体实施方案

1Project Overview

Nanming River is the “mother river” of Guiyang City. It

originates from Pingba County, Anshun City, Guizhou

Province. It belongs to the Yangtze River system and

Wujiang River tributary. The drainage area is 6600km2

and the total length is 118km, including 100km in

Guiyang City and 36.4km in the city section. It accepts

five tributaries of Madi River, Chenliang River, Xiaoche

River, Shixi River and Guancheng River respectively.

The leaders of previous provincial and municipal party

committees and governments attached great importance

to the governance and protection of Nanming River.

From 1985 to 1986, Hu Jintao, then secretary of the

Guizhou Provincial Party Committee, personally took the

lead in participating in the dredging of Nanming River and

achieved good governance results.

南明河城区段水系图

城区行政范围

上游汇水区

小黄河

花溪河

鱼梁河

南

明

河

核心段

1.1Nanming River Basin Overview

Headquarter of Nanming River and Aha Reservoir Basin Water Environment Comprehensive Improvement Project


• On August 24, 2016, Chen Miner,

secretary of the Guizhou Provincial

Party Committee, inspected

Nanming River project and

inspected the Qingshan Wastewater

Treatment Plant.

• On May 4, 2017, Chen Miner, then

secretary of the Guizhou Provincial Party

Committee, accompanied the Central 7th

Environmental Protection Inspector Group

to inspect Qingshan Wastewater Treatment

Plant.

• From 1985 to 1986, Hu Jintao,

then secretary of the Guizhou

Provincial Party Committee,

personally took the lead in the

dredging of Nanming River.

• On August 25, 2017, then

secretary of the Guiyang

Municipal Party Committee, Li

Zaiyong, current deputy governor

of Guizhou Province, visited

Nanming River.

1Project Overview 1.1Nanming River Basin Overview

1Project Overview 1.2Water pollution situation

The urbanization of Guiyang started late and entered the stage of rapid development from 2004. Only from 2004 to 2012, GDP

growth exceeded 4 times. With the rapid development of the economy, more than 200 industrial enterprises and daily sewage along

Nanming River discharged a large amount of sewage into the river every day. The river gradually deteriorated, turned black, and

became stinky. The water quality of the tributaries of Nanming River and Shixi River in the upstream city became poor class V,

and the river course lost its natural purification ability.


The black odor of Nanming River has seriously affected the production and life of residents along the river. It was imminent to

control Nanming River and protect the mother river. The people were looking forward to it.

1Project Overview 1.3The necessity of introducing PPP model into the project

1. Although Guiyang City has repeatedly treated Nanming River, it has not been able to get a fundamental improvement in the

water environment. The pollution situation of Nanming River has seriously affected the normal life of the local residents and the

city positioning of Guizhou's pioneering demonstration zone for ecological civilization and “cool Guiyang”. The new municipal

party committee and municipal government faced great challenges and required a systematic solution to the problem of water

pollution in Nanming River Basin in a short period of time.

2. Due to historical reasons, the economic development of Guiyang started late. There is a certain contradiction between

economic development and environmental protection. The task of river basin governance is tough, and local government faces

great financial pressure.


1Project Overview 1.4Project organization guarantee and implementation process

1.After full investigation of water control mode across the country, Municipal Government of Guiyang changed its idea from

investment and construction to purchase of services and process supervision. In order to break the traditional governance

model of “segmentation and multi-head water control”, a permanent institution - Nanming River Rehabilitation Project

Headquarters, was established, with the head of the municipal administration as the commander, and the head of the

relevant municipal functional department as the deputy commander. Municipal ecological, urban management, water affairs

and other functional departments and district and county leaders as members, and regularly held meetings to promote planning,

bidding, state-owned assets supervision, price verification, project auditing, financial accounting, legal negotiation, fee

payment, etc., to simplify the procedures, which greatly improved work efficiency and quality of government services,

providing a well organized working system to the implementation of the project.


2.The Municipal Government of Guiyang has made up its mind to

open up the market. They adopted the PPP model in advance, and

introduced social capital with strong technical, financial strength

and social responsibility through public bidding. The government

assigned professionals do professional work, which is to take

responsibility of the whole process of project planning and design,

investment and financing, construction and operation management.

1Project Overview 1.5 Implementation content

The Nanming River Basin Water Environment Comprehensive Improvement Project is based on the principle of “Government-led,

mechanism innovation, legal governance, science and technology support, participation by the whole people, and long-term governance

for a long time”. The entire plan is implemented in phases.

Phase I (November 2012~May 2013): Mainstream interception, dredging, dam renovation, 500,000 tons/day TOT stock sewage

treatment plant upgrade, odor treatment, main flow ecological restoration, landscape enhancement, etc. The total investment is 1.1

billion yuan.

Phase II (August 2014~December 2016): Focusing on improving water quality, tributary management, the construction of sewage

treatment facilities (plants and pipe networks): Build new sewage treatment plants such as Xinzhuang Phase II and Huaxi Phase II (a

total of 425,000 tons/day) and supporting pipe network, new sludge disposal center, control water quality from the source, and perfect

the interception system for the tributaries of Shixi River and Guancheng River and improve ecological restoration of the interception

system of Nanming River. According to the previous Nanming River treatment effect, the actual situation of the river ecological water

quality and the recommendations of the experts of the three ministries, the municipal government approved the adjustment plan. Newly

build Jinyang Phase II, Jinbai and other sewage treatment plants (140,000 tons/day), sludge resource disposal (500 tons/day), Nanming

River ecological restoration, Huaxi River tributary treatment and river basin environmental Internet information supervision system

construction and other projects to ensure that the ecological water environment in Nanming River Basin continues to get better step by

step.


Phase III System Improvement Project (2016~2025): To achieve the goal of long-term clearance in

Nanming River, adjust the coastal industrial structure, control agricultural non-point source pollution,

gradually improve urban rainwater and sewage diversion, implement water and soil conservation and

ecological restoration within the basin, and establish a long-term mechanism for pollution prevention and

treatment.

At present, in accordance with the requirements of the Guiyang Municipal Party Committee and the

Municipal Government, in order to consolidate governance, the “One River” plan and the system

improvement project is being implemented. By controlling the reduction of pollution sources, increasing the

collection and treatment capacity of domestic sewage and initial rainwater, improving the tailwater discharge

standards of wastewater treatment plants and the level of wastewater reclamation and utilization,

strengthening the accumulation and utilization of rainwater in the later period to achieve water cycle balance

and restore river ecology

1Project Overview 1.5 Implementation content


1Project Overview 1.6 Content of completed major projects

西河

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河河

黄

小

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麻

市

贯

城

河

松

溪

河

鱼

梁

河

鱼洞

河

麻堤河下沉式污水厂（一期）

青山下沉式污水厂

孟关污水厂（一期）

牛郎关污水厂（一期）

花溪污水厂（一、二期）

图例：

新建污水厂

提标污水厂

污泥深度处理中心

厂外沉砂池

河道生态修复

污水收集系统

配套管网

河道防淤

截污沟除臭

翻板坝

新庄污水厂（一期）

金阳污水厂（一、二期）

污泥处理中心（新庄污水厂二期）

新庄污水厂（二期）


小河污水厂

二桥污水厂（一、二期）

截污除臭

翻板坝

金阳污水厂（一期）

新庄污水厂（一期）


小河污水厂

五里冲污水厂（一期）

1.External pollution control

11 sewage treatment plants have been built with a total scale

of 940,000 m3/d; 3 under construction that gradually entered

the trial operation, with a total scale of 75,000 m3/d; 5

upgradeds tock sewage treatment plant with a total scale of

500,000 m3/d; the supporting sewage collection pipe

network has been improved 91.39 km.

2.Endogenous governance

The main and tributary channel has a dredging of 920,000

m³, a deep pit backfill of 216400 m³, a silt-proof pipeline of

2.3 km, and 5 flap dam reconstructions.

3.Ecological landscape

Complete the construction and restoration of main and

tributary ecological 73,000 m2, 4 shoal wetlands, 15,300 m2,

and ecological revetment of more than 30,000 m2; The

landscape reconstruction is 203600 m2, the light is 5.2 km,

and 2 landscape parks are replaced.

4. Odor control

7 sets of new decontamination ditch deodorization system;

200 t/d new sludge deep treatment center (80% moisture

content).

5.Water quality testing

Construction of 12 water quality monitoring points and 1

testing platform.


1Project Overview 1.7 Governance effectiveness

Time Poor

class V class V

class Ⅳ

2012.06 (Before

governance) 51.0% 10.1% 8.8%

2013.06 17.4% 24.3% 28.2%

2015.06 7.5% 31.8% 30.6%

2017.05 7% 26.8% 31.6%

Nanming River has achieved phased results. The main and tributary

water body of poor Class V water quality has decreased from 51%

to 7%, the Class V water body has decreased to 26.8%, the Class IV

water body has increased to 31.6%, and the main pollutant index

CODcr of the main stream management section has stabilized to reach

the surface water class III water quality standard. The NH3-N and TP

concentrations in most river sections have been significantly reduced and

effectively controlled.

The results of ecological survey indicate that the water plant populations

in the main stream of Nanming River are rich, and the biodiversity index,

aquatic plant coverage and system integrity are significantly improved,

especially that the coverage of submerged plants has increased from

15% to 73%. At the same time, the flood control capacity of the river

has also been effectively enhanced. In July 2014, it successfully resisted

the torrential floods that occurred once in a hundred years. Through the

implementation of the construction of sewage treatment plant and

sewage collection pipe network, Guiyang City has reached the

assessment standard of the national environmental protection mode

city, and successfully passed the assessment and acceptance of the

national expert group.

2012.06

花溪河

小黄河

麻堤河

市西河

贯

城河

南

明

河

小车河

劣Ⅴ类 Ⅴ类

Ⅳ类 Ⅲ类

花溪河

小黄河

麻堤河

市西河

贯

城河

南

明

河

小车河

2013.06

花溪河

小黄河

麻堤河

市西河

贯

城河

南

明

河

小车河

2015.06

花溪河

小黄河

麻堤河

市西河

贯

城河

南

明

河

小车河

2017.05


1Project Overview 1.8 Comparison pictures of governance effectiveness

After governance Before governance


After governance

After governance After governance

Before governance

Before governance

Before governance



1.9 Photos of governance effectiveness of Nanming River


1Project Overview

On August 24, 2013 and June 21, 2014, the municipal government, the provincial environmental protection department,

the provincial housing construction department, and the provincial science and technology department organized the

water environment management experts of national three ministries and commissions to assess the first phase of the

Nanming River water environment comprehensive improvement project. The second phase of the program was

demonstrated. Relevant government departments, people's congress representatives of the city, CPPCC members,

citizen representatives and media attended the meeting. Experts achieved following agreement:

1.The treatment plan of “cutting pollution and pollution control first, eliminating endogenous pollution as protection,

improving environmental quality on both sides of the strait as demand, and restoring ecological self-purification ability to the

fundamental” is scientific, systematic and reasonable;

2. Water quality of the first stage of Nanming River has been fundamentally changed;

3. The comprehensive improvement mode of Nanming River water environment has become an example of pollution

control in urban rivers in China;

4. The second phase of the comprehensive improvement of the water environment of Nanming River reflects the principle of

adhering to the past;

5. The second phase of Nanming River water environment remediation program is scientific, systematic, pragmatic and

reasonable.

In view of the first phase of Nanming River's governance and various conditions, through further governance, Nanming

River will become a “domestic leading and world-class” river governance mode.

1.9 Governance effectiveness


1Project Overview

Demonstration Conference of National Three Ministries Experts of Nanming River Water Environment Comprehensive

Renovation



1Project Overview

• On October 18, 2014, the Ministry of Housing and

Urban-Rural Development held a national experience

exchange conference on urban infrastructure

construction experience. The Nanming River

Management of Guiyang City was shared as a

demonstration project at the meeting.


At that time, Chen Zhenggao, Minister of Housing and Construction, gave a high evaluation to the Nanming

River Basin Water Environment Comprehensive Improvement Project.“The comprehensive management

of Nanming River in Guiyang City, Guizhou Province is very good, especially on comprehensive

management, overall planning, and implementation of branches. The effect is obvious!”


1Project Overview

The Guiyang Nanming River

Treatment Project was selected as the

first batch of national PPP

demonstration project by the Ministry

of Finance.

On December 25, 2014, the Ministry of

Finance held a special training course

on government and social capital

cooperation. Nanming River

Management is the one and only PPP

project in China for water environment

management. CITIC Water (China

Water Environment Group) shared its

successful experience as the only

invited water company.



1Project Overview

On July 16, 2014, Guiyang suffered the largest rainfall since the city had a meteorological

record: 201.7 mm! The comprehensive improvement of the water environment of Nanming

River has completed the test of extreme rainstorms and played an important role in flood

control and disaster prevention in Guiyang City.



1Project Overview


Nanming

River

flood

scene


1Project Overview

New developments

and new

requirements 2


2 New developments and new requirements

In recent years, the State Council and the Ministry of Environmental Protection, the Ministry of Housing and

Urban-Rural Development, and the Ministry of Water Resources have successively issued a series of new

environmental protection laws and regulations, such as “Water Ten Articles” and “Sponge City Construction

Technical Guide”, which have raised higher requirements of water pollution prevention in Nanming River.

On August 24th, 2016, when Chen Miner, then secretary of the Guizhou Provincial Party Committee,

investigated the governance of the comprehensive improvement project of the Nanming River Basin, he fully

affirmed the comprehensive improvement effect of Nanming River at the scene, and proposed to promote the

construction of the entire ecological civilization with key river basin management. With the goal of creating

"one river, one hundred mountains, and one thousand gardens", we need to do a good job in project

implementation and string the Nanming River into a beautiful necklace.

In September 2016, the joint investigation team of Guizhou Provincial Water Resources Department and

Provincial Environmental Protection Department pointed out on the investigation report of Nanming River:

The comprehensive management of Nanming River has achieved remarkable results, and the pollution

level of Nanming River has been significantly reduced. The "Report" also pointed out that the water

environment of Nanming River still needs further improvement at this stage, and put forward corresponding

suggestions.


2.1 Research report of the joint research group of two departments

The former phase of the project was effective

The water quality of individual tributaries is still grim, and there is

an urgent need for governance.

1.The first and second phase of Nanming River Comprehensive Management Project, which was

organized and implemented at the end of 2012 in Guiyang City, has achieved remarkable results in

improving the water quality of the river in the main stream of Nanming River, and basically solved

the problem of “black and stink” water body.

2.The deterioration of the water environment in the three tributaries of Xiaohuang River (including

Madi River), Shixi River and Guancheng River is still very serious, and it is one of the main factors

that restricts the water quality of Nanming River.



Control the development and utilization of the upper reaches of Nanming River Basin,

and it is necessary to carry out ecological water replenishment in Nanming River Basin.

It is necessary to demonstrate the further improvement of the effluent standards

of sewage treatment plants.

3.Water resources in the upper reaches of Nanming River Basin is over-used, which resulted in

insufficient water use in the downstream river environment. This is one of the important factors

restricting the water environment quality of the Guiyang City section.

2.1 Research report of the joint research group of two departments

4. The relationship between that the effluent from the sewage treatment plant has reached the first-

class A standard of the “Emission Standard for Pollutants in Urban Sewage Treatment Plants” (GB

18918-2002) and the Water Quality Standard for Surface Water (GB3 838-2002).



In accordance with the principle of “unified planning and step-by-step implementation” of the Nanming River water environment

comprehensive treatment plan, on the basis of the implemented project content, in order to further improve and upgrade the water

quality of Nanming River tributaries, the next stage of work objectives are as follows:

1. Through the measures of ecological dredging, odor remediation and intensified management, the odor of the main city section

of Nanming River will be eliminated by the end of 2017.

2. Through further implementation of water replenishment, improvement of sewage interception, promotion of sewage plant

construction and management of Shixi River and Guancheng River, the water of Nanming River will be clear by the end of

2018, and the main indicators will basically reach the Class IV standard of surface water.

3. For the main tributaries that do not have the transformation conditions, the drainage ditch will be controlled, and the overflow

pollution control will be carried out. At the same time, the water discharge standard of the sewage plant along Nanming River

Basin will be improved, the ecological restoration will be strengthened, the reclaimed water reuse and the water adjustment and

hydration system will be improved. The main indicators of the river will reach the Class IV standard for surface water in

2020 and have a stable ecosystem.

2.2 Nanming River System Improvement Project



2.3 Governance ideas

Comprehensive improvement of water environment in Nanming River Basin

Status and problem identification and key factor analysis

Pollution contribution

Total amount of pollution

Pollution intensity

Pollution source

Systematic improvement of ecological landscape effects

Realize the utilization of rainwater resources

Effective utilization of reclaimed water

Non-point source

pollution control

Internal pollution control

Reclaimed water use

Water environment

safety construction

Sewage and pollution control system

Ecosystem construction

Improve interception system

Wastewater plant construction

CSO control

Agricultural non-point source

control

Water quality improvement

Reclaimed water network

River dredging

River bank treatment

Ecological wetland

Ecological revetment

Smart water system

Water environment monitoring

Platform construction

Water environment quality

simulation analysis

Clear water supply system

Water conservation

Water diversion project

Based on the results of the first and

second phases

Sewage treatment plant upgrading

Channel cleanout

Biological debris removal

guide Committee of

experts

guide

Sludge treatment and disposal

Improvement of environmental

sanitation system

Establish a long-term operational monitoring and management mechanism

Improve water quality in the basin, and form a water environment with clear water and rich economic prosperity



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COD（mg/L）

花溪补水5万吨/日花溪补水10万吨/日

小河厂入流断面

三江口市西河入流断面

小河厂入流断面

三江口市西河入流断面

According to the simulation analysis, after the above

engineering measures, the main water quality indicators

(CODCr, NH3-N, TP) of the main stream of Nanming

River (Sanjiangkou ~ Hongyan Bridge) can reach Class IV

water quality standard.

小河厂入流断面三江口市西河

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TP（mg/L）

2.3 Accessibility analysis

Based on the current situation of Nanming River water

environment, as well as the topography, hydrology and water

quality of the basin, comprehensive consideration is given to

the use of sewage interception, sewage plant construction,

sewage treatment plant labeling, ecological enhanced

purification, river ecological restoration, clean water

source water supply and other engineering measures. The

international leading DHI MIKE mode is used for simulation

prediction and analysis.



In 2017, “Deodorization” has completed the following work:

Improve the main stream and the sewage interception pipe of Shixi, Madihe, Guancheng River and Xiaohuang River 43.35 km (new construction 28.35km, dredging maintenance 15km, all completed); The main stream of the Liberation Bridge - Tuanpo Bridge and the tributaries are dredged; Promote the construction of 2 sewage treatment plants under construction of 45,000 m³/d; Ecological engineering construction in the upper reaches of the Xiaohuang River (ecological front storage, multi-level grit, slag blocking and ecological slope protection, interception ditch connection project); The landscapes of Nanming River and Shixi River are upgraded; Maintenance of 7 deodorizing equipments; Damaged shots and inspection wells were replaced and sealed; Inspection and closure of the inspection section of the provincial party committee; It is recommended to establish a tributary upstream garbage collection and transportation system.

In 2018, "Water Clearing" will carry out the following work:

Water and hydration and clear water drainage; 5 new sewage treatment plants, 330,000 m³/d (Maidi River Phase II, Xinzhuang Phase II Stage II, two sewage plants selected for advancement); Relying on the environmental Internet of Things and water environment big data, build a smart water management platform such as water quality monitoring and water conservancy dispatching; Construction of the squid gully sewage tunnel 0.74 km (in implementation); comprehensive management of 19 ditches ;Nanming River ecological restoration and landscape construction improvement; Initial rainwater storage.

The main water quality indicators in 2020 will reach the surface water class IV:

The existing Class A sewage treatment plant has upgraded 6 sets of 820,000 m³/d; Implementing the water reuse project, replacing the ecological water source can be used to increase the river hydration; Relying on the environmental Internet of Things and water environment big data, we will further improve the smart water management platform such as sewage supervision, water quality monitoring, hydrodynamic mode analysis and early warning, water conservancy dispatching and ecological assessment.

西河

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图例

河

南

三桥下沉式污水厂

六广门下沉式污水厂

麻堤河污水厂（二期）

贵医下沉式污水厂

金阳下沉式

污水厂（三期）

二桥污水厂（三期）

新庄污水厂二期二阶段

小黄河多级沉砂、生态护坡、拦渣及生态前置

库等


新庄污水厂一期

新庄污水厂二期

小河污水厂

金阳污水厂（一期）


新建污水厂

河道清淤

截污管完善

截污管沟建设

小黄河生态工程

鲤鱼大沟

污水厂提标改造

近期调水方案

小关污水厂（一期）

隆昌污水厂（一期）

未来方舟污水厂（一期）

奶牛场污水厂（一期）

远期调水方案

2.4 Nanming River Deodorization and Clearing Project



Experience 3


Project preparation

3.1Operational flow chart of PPP project for the second phase of comprehensive improvement of water environment in Nanming River, Guiyang City 3 Experience

Guiyang Municipal Government initiated the second phase of Nanming River Water Environment

Comprehensive Improvement Project

Established the headquarter of Nanming River Water Environment Comprehensive Improvement Phase

II Project

Demonstration of technical scheme

Feasibility demonstration

Prepare project PPP implementation plan, and determine transaction mode, legal documents and financial

plan

Implementation of the plan with market test

Organize functional departments and experts review the implementation plan

and report to the municipal government for approval

Organize national experts to conduct scientific

demonstration of technical programs

Value for money and financial affordability analysis

Assisted by a third-party: professional consulting

agency

Judging whether the project is marketable


Project

procurement

Prepare bidding documents according to the PPP implementation plan, and finally select social capital by public bidding

Reach an agreement and sign contract

Seeking advices from nine departments on cooperation agreement

Multiple rounds of consultations with social capital

3.1Operational flow chart of PPP project for the second phase of comprehensive improvement of water environment in Nanming River, Guiyang City


3 Experience

Project construction and operation

Project financing financing is completed by the project company itself

Establish a project company

Project handover Develop a handover plan to ensure

the transfer rate and debt divestiture

Project execution and handover

3.flow chart of PPP project for the second phase of comprehensive improvement of water environment in Nanming River, Guiyang City

Project supervision (the Municipal Urban

Management Bureau, the Environmental

Protection Bureau and other departments shall

supervise the whole process of social capital

behavior according to the requirements of

relevant laws and regulations)

Service fee payment (after the project business department and

relevant supervision and management department have confirmed

the service quality, the government will pay the corresponding fee

according to the determined service quality)

According to the implementation plan, the whole

process of design, construction and operation is

completed by social capital.


3 Experience

(1) Adjusting municipal planning, distributed construction, and greatly saving investment.

Guiyang is a karst landform, urban water use is difficult to dispatch, and land resources are scarce. Guiyang City originally

planned to adopt the “large cut-off” planning scheme. A large-scale sewage treatment plant was built in the lower reaches of

Nanming River. No plant was built in the upper and middle reaches of the city. The designed sewage collection pipe has a large

diameter and a long distance, involving a large number of demolition and land acquisition, and the project investment is large.

China Water Environment Group re-optimized the original municipal planning with the principle of “modelrate concentration,

local treatment, and near reuse”, saving pipe network construction and land acquisition investment of about 1.5 billion yuan, and

operating electricity charges for water and water supply is about 30 million yuan.

“Intensive concentration, on-site treatment, and near reuse” innovative drainage

planning concept, saving investment of pipe network is about 1 billion yuan, and

saving annual operating cost is 0.3 billion yuan;

The annual saving of water resources is nearly 100 million tons, and

the annual water saving cost is 158 million yuan;

The construction period saved 30% ~ 50%, which has played an important role in the

success mode of Guiyang City and the successful passing of energy conservation and

emission reduction assessment.

3.2Nanming River PPP model effect


3 Experience

(2) Technological innovation and land

saving.

By introduction of China Water

Environment Group's independent

intellectual property rights "HELEME

biochemical treatment system", "land

intensive type, resource utilization type,

and environmentally friendly" full

sinking sewage treatment system and

other advanced technologies, and four

sewage treatment plants such as

Qingshan and Madi River, a total of 1053

acres of land for construction land and

sanitary protection belts have been saved,

and two landscape water parks have been

replaced. The Qingshan Plant Water

Environmental Protection Science

Education Base serves as the permanent

site of the “Ecological Civilization

Guiyang National Forum”, and the value

of surrounding land has increased greatly.

Schematic diagram of Qingshan Wastewater Treatment

Plant in Guiyang City

Ecological Civilization Guiyang National Forum



3 Experience

(3) We assigned specific person to manage

professional work in order to improve

efficiency of investment and operation.

Through the introduction of social capital,

systematically plan and promote system

engineering such as river improvement,

sewage treatment and resource utilization,

and focus on large factories, rationally

allocate resources of neighboring small

factories , improve investment and

operational efficiency, and reduce the life

cycle cost of the project .

Built sewage plant

花溪污水厂 4+4万m³/d

小河污水厂 16万m³/d

二桥污水厂 8万m³/d

新庄一期污水厂 25万m³/d

麻堤河污水厂 3万m³/d

青山污水厂 5万m³/d

新庄二期污水厂 24万m³/d

金阳一期污水厂 5万m³/d

Sewage plant under construction Newly built sewage plant in the short term Newly built sewage plant in the long term

牛郎关污水厂 1万m³/d

孟关污水厂 1.5万m³/d

五里冲污水厂 3万m³/d

金阳二期污水厂 5+5万m³/d

三桥污水厂 4万m³/d

奶牛场污水厂 2.5万m³/d

贵医污水厂 5万m³/d

小关污水厂 1万m³/d

麻堤河污水厂二期 5万m³/d

金阳污水厂 5+5+10万m³/d

二桥污水厂 8+4万m³/d

六广门污水厂 12万m³/d

五里冲污水厂 3+3万m³/d

大水沟污水厂 3万m³/d

牛郎关污水厂 1+1万m³/d

孟关污水厂 1.5+1.5万m³/d

新庄二期污水厂 24+16万m³/d

花溪污水厂 8+4万m³/d

麻堤河污水厂二期 5+5万m³/d

未来方舟污水厂 2.5+2.5万m³/d

小关污水厂 2万m³/d

奶牛场污水厂 2.5+2.5万m³/d



3 Experience

(4) Increase the amount of water use

in river landscapes

Through the implementation of this

project, the sewage treatment rate of

Nanming River Basin has increased to

over 95%, and the water quality and

sensory effect of the branch and main

stream will be further improved. The

water body of poor class V water quality

decreased from 51% to 7%, the class V

water body increased to 26.8%, the class

IV water body increased to 31.6%, the

class III water body increased to 35.6%,

and the river water supply along the

river sewage treatment plant is about

330,000 tons/day. The service area has

expanded about 90 square kilometers.

The main indicators (BOD5≤10;

COD≤40; NH3-N≤1.5) of the 65%

inspection section of the main stream

and the five tributaries meet satisfies

the water consumption of the

ornamental landscape environment.



3 Experience

(5) Revitalizing stocks and optimizing debts

Through the introduction of social capital, the project will expand the financing channels, transfer the franchise

rights of some sewage treatment plants and new sewage treatment plants that were originally built, and bundle

them with Nanming River water environment comprehensive improvement project, and the transfer price of the

franchise is specially invested in the river basin management. The investment gap is subsidized by the government

to purchase environmental services, which greatly alleviates the pressure of short-term payment of funds during

the government construction period, effectively revitalizes the stock and optimizes the debt.

(6) Qualitative evaluation

During the implementation of the project, with the promulgation of documents such as the Ministry of Finance's

Caijing [2014] No. 113 document, the Guiyang Municipal Government introduced a third-party professional

consulting agency to conduct a qualitative evaluation of the project. Judging conclusions: From the perspective of

project service price, service quality, investment efficiency, risk allocation and implementation efficiency,

Nanming River Comprehensive Renovation Phase II Project is more suitable for operation in the PPP model than

the traditional government investment method.



3 Experience

(1) Find suitable project investors

(2) Evaluation of the feasibility of the program

PPP projects must have a stable source of income, and their income should cover the investment of the entire project; Investors

based on decades of operational objectives, fully consider the economical efficiency and validity of the project, and achieve their

own reasonable interests within the scope of the government's ability to withstand. In the whole life cycle of the project, the

investor has the subjective initiative to optimize and do the project well, and realize the value for money; The implementation of

the PPP project should be matched with the development capability of the local regional economy. The PPP mode can alleviate

the government's financial pressure, rather than bring more burdens to the finance.

3.3Implementation points

PPP is not a short-term relationship love, but a long-term marriage. The partner of the

project is "a family." Therefore, the selection of project investors must meet the

government's investment needs: comprehensive technical capabilities, a high degree

of social responsibility, quality and quantity to complete the task according to the

required time.


3 Experience

(3) Scientific system research, unified planning, and step-by-step

implementation

The comprehensive rectification of the water environment is a system project with huge investment

demand and complicated operation, which has high requirements on professional technology and financial

security. Drawing on the successful experience of the Guiyang Nanming River Water Environment

Comprehensive Improvement Project, it is a prerequisite for the success of the PPP project to conduct

sufficient research and demonstration at the initial stage of the project. By overcoming the shortcomings of

“find-it and fix-it mentality” and the lack of systematic planning of the government in river basin management,

by re-optimizing the planning of river basin ecosystems and the layout of sewage plants, engineering

investment in pipe network collection, water transfer and water replenishment can be greatly saved. It also

greatly reduced the operating expenses of reclaimed water, which is the endogenous requirement and market

demand of projects invested by social capital.


3.3Implementation points 3 Experience

Thank you!

2017.09 Guiyang

Guiyang Nanming River Water Environment Comprehensive ... Nanming River Water... · The Nanming...

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