domestic wastewater managementinfofile.pcd.go.th/water/ait060509_sec6.pdf · policy on domestic...

By…

Ms.Wilasinee

Saktaywin

Domestic Wastewater Management DivisionWater Quality Management Bureau

Pollution Control Department

6 May 2009

Domestic Wastewater Management

Overview of the Presentation

Domestic Wastewater Characteristic

Inland Water Quality

Existing Domestic Wastewater Management

Law Regulation and Enforcement Measures

Management Measures

Investment Measures

Policy on Domestic Wastewater Management

Domestic Wastewater Characteristic

Population in Yr 2008 approx. 63 million

Domestic Wastewater characteristic (at origin from household)

- Wastewater quantity ~ 12.6 million m3/d (180 L/day-person)

- BOD load ~ 2.4 million kgBOD/d (190 mgBOD/L)

Community Wastewater Characteristic (from sewer)

Note: ( ) Recommended value for wastewater treatment plant design

ที่มา: เกณฑแนะนําการออกแบบระบบรวมรวบและโรงปรับปรุงคุณภาพน้ําของชุมชน

กรมควบคุมมลพิษ 2546

Inland

Water

Quality

(1998- 2007)

Figure :

Inland

Water

Quality

in Percentage throughout

Thailand during 1998-2007

Existing Domestic Wastewater ManagementLaw Regulation and Enforcement Measures•

The Enhancement and Conservation of National Environmental Quality Act, B.E. 2535 (NEQA 1992)

•

Water Quality Standards : Ambient Water Quality Standards

•

Effluent Standards•

Other Laws

Management Measures :•

Monitor and Evaluate Water Quality in Water sources

•

Pollution Control Zone :Investment Measures :•

Establish Wastewater Treatment Facilities

Law Regulation and Enforcement Measures

The Enhancement and Conservation of National

Environmental Quality Act, B.E. 2535 (NEQA 1992)

Main Principle : •

Polluter Pays Principle (PPP)

•

Penalty/Damaged environment compensation

•

Pollution Control Area (8 areas) •

Monitoring

•

Water Quality standards•

Effluent Standards

Ambient Water quality standards :

•

Surface Water Quality Standards

B.E. 2537 (1994)

•

Coastal Water Quality Standards B.E. 2537 (1994)

•

Groundwater Quality Standards B.E. 2543 (2000)

Law Regulation and Enforcement Measures (cont.)

Effluent standard•

Buildings Effluent Standards B.E. 2537 (1994)

•

Housing Estates Effluent Standards B.E. 2539 (1996)

•

Industrial Effluent Standards B.E. 2539 (1996)

•

Pig Farm Effluent Standards B.E. 2544 (1991)

•

Gas Station Effluent Standard and Oil Terminal Effluent Standards B.E. 2545 (2002)

Law Regulation and Enforcement Measures (cont.)

Other laws related to water pollution control

•• The Factories Act B.E. 2535 (1992)

• The Public Health Act B.E. 2535 (1992)

• The Public Cleansing Act B.E. 2535 (1992)

•

Determining Plans and Process of Decentralization to

Local

• Government Organization Act B.E.2542 (1999)

•

Industrial Estate Authority of Thailand Act B.E. 2522

(1979)

• Building Control Act B.E. 2522(1979) and B.E. 2535 (1992)

Law Regulation and Enforcement Measures (cont.)

47 automatic monitoring stations620 general monitoring stations

Inland Water Quality Information System(http://iwis.pcd.go.th/IWIS/index.php)

Location of Automatic Stations

Management Measures :Monitor and Evaluate Water Quality in Water sources

1212

Constructed 82 PlantsUnder Construction 17 PlantsDelayed 1 Plant

(Samutprakan

Province)

In Yr2008 = 100 Municipal Wastewater Treatment Facilities in

Thailand

Investment Measures :

•

Establish Wastewater Treatment Facilities

Stabilization Pond (SP) 47%Stabilization Pond (SP) 47%

เทศบาลเมืองสงิหบุรี Capacity 4,500

m3/d

Activated Sludge (AS) 36%

เทศบาลเมืองกาญจนบรุี ระบบ AS แบบคลองวนเวยีน

Capacity 24,000

m3/d

Aerated Lagoon (AL) 16%Aerated Lagoon (AL) 16%

เทศบาลเมืองประจวบคีรีขันธ Capacity 8,000

m3/d

Rotating Biological Contactor (RBC) 1%

เทศบาลเมืองหัวหิน Capacity 8,000

m3/d

Policy on Domestic Wastewater Management

Reduce waste at pollution sources by the simple technologies (Ex. Grease Trap and On-site treatment)Rehabilitate the existing municipalwastewater facilities Construct new wastewater treatment system using appropriate technology (Central/Cluster)Polluter Pay Principal (PPP)

Thank You

Surface Water Resources: can be divided into River 25 Basins

12

876

345

9101112

13

1415

212019

161718

22232425

Salaween

Khong

Kok

Chi MunPing Wang Yom NanChao PhrayaSakae KrangPasak

Tha Chin

Mae Klong

Prachinburi

Bang Pakong

Tonele Sap Eastern Coast

Phetchaburi

Western Coast South-East Coast

TapiSongkhla Lake

Pattani

South-West Coast

รูปแบบของระบบบําบัดน้ําเสยีรูปแบบของระบบบําบัดน้ําเสยี

((รวมศูนยรวมศูนย // กลุมอาคารกลุมอาคาร // ติดกับที่ติดกับที่))

1

3

Central

Cluster

On-site