Cities 2030 Cities for All: Implementing the New Urban Agenda Kuala Lumpur, Malaysia, 7 to 13 February 2018

Transcription

1 Chiang Mai Municipality Public Works Bureau Sanitary Engineering Division Cities 2030 Cities for All: Implementing the New Urban Agenda Kuala Lumpur, Malaysia, 7 to 13 February 2018

2 Chiang Mai Municipality Public Works Bureau Sanitary Engineering Division Chiang Mai

3 CHIANG MAI CURRENT SITUATION

4 Chaing Mai Municipality in collaboration with German International Cooperation(GIZ) under the project on Integrated Resource Management in Asian Cities : The Urban Nexus Programs in the field of wastewater management and energy efficiency in the municipal area from present

5 Project & Activities under the GIZ Nexus Program 1. Problem-solving of wastewater in the Mae Kha Canal 2. Energy-efficient building design for elderly care center 3. Increasing Capacity of pump performance of fountain at city moat 4. Wastewater Collection System in old town and whole-sale fresh market

6 1. Problem-solving of wastewater in the Mae Kha Canal Muang Mai Market Maekha Canel

7 Mae Kha channel Oxygen content

8 Mae Kha channel Recommendations Long Term Change of waste water collection system from open channel to pipes Mae Kha Bicycle lane Walkway Walkway Mae Kha Bicycle lane

9 CLEAN UP All EXISTED WASTEWATER COLLECTION SYSTEM

10 Raising public awareness Conducting a stakeholders meeting from Muang Mai Fresh Market and Muang Samut to find solutions

11 2. Energy-efficient building design for elderly care center GIZ in collaboration with the CMM design an energy efficiency building for elderly care center to reduce energy use and more natural light and sun light Energy simulation model PROJECT LOCATION 18 45'47.2"N / 99 00'40.9"E

12 OPTION 1: Improved lighting system OPTION 2 : Improve window glazing tinted glazing

13 OPTION 2 : Improve window glazing: Double glazing with Low-E coating OPTION 3: Roof Insulation

14 OPTION 4 : Additional windows and shading OPTION 5 : Replace single speed split unites by inverter type split units

15 OPTION 6 : Photovoltaic OPTION 7 : set operative temperature at 26 ºC in non-active room

16 3. Improvement Efficiency of Pumps in City Moat Pumps in the city moat of Chiang Mai, there are the 66 pumps in process water fountain pumps around the city moat surrounding the old city. Known for tourism, the city is keen to have these fountain fully functional at all time. Pumps are operating 10 hours a day. However, the pumps consume a lot of energy, break down often, and put stress on both budget and manpower for operation and maintenance

17 Team staff investigated pumps efficiency at city moat and problems could be found such as heat, fountain s clogging and pressure

18 Solving problem of pumping fountain in city moat

19 4. Wastewater Collection System in old town and whole-sale fresh market Actual situation in Chiang Mai: Combined gravity storm- & waste-water collection system Storm water drainage lines are used to drain: Effluent of the septic tanks Grey water (kitchens and bathrooms) > diluting effect Storm water (rainwater) > diluting effect > no energy recovery <

20 Map of Chiang Mai Municipality Chiang Mai Municipality s Boundary Current system - Combined system Muang Mai Market Old Town Plan to shift to separated system Vacuum sewer system introduced by GIZ

21 Problems of Muang Mai Market and Around

22 Alternative waste water collection system: Vacuum sewer collection Vacuum System: Cost effectives Small pipes (80-250mm) Shallow, narrow trenches (0,6-1.2m) Simple and fast Simple or even no machinery required (Energy saving potential) No manholes, inspection pipes only No lifting (pump-) stations required Fresh water and waste water pipes in the same trench allowed According to EN it is permitted to install both potable water pipes as well as vacuum sewer pipes within one single trench. According to EN potable water pipes must be installed in a separate trench and higher level than the gravity sewer pipes.

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25 Key lessons learn integrated management in all dimensions Efficient Energy Consumption Working in Collaboration with related agencies Public participatory process

26 Thank you