Investigation
To create a model of Nong Bon reservoir showing the rate of water flow
Environmental impact: During flood, roads water are pumped up and discharge in reservoir
Environmental impact: During flood, roads water are pumped up and discharge in reservoir
Investigation process
We split our investigation process into three parts; interview, observation, and data processing. First of all, we had a chance to interview the officer of the water management team of the Nong Bon Pond. We gathered a quite detailed information for the interview, for example, how to manage the water level inside the reservoir regarding the water level in the community, how they communicate with other organizations to determine the inlet and outlet of the water, the mechanism of the machine of the outlet water pump, the size of the inlet and outlet and how many of them in this reservoir that are actively used, they struggle of water flow through Klongs from external sources into the reservoir etc.
In the second stage, we visited the inlet and outlet management station to observe the flow pump and how it works. For inlet station, we observed the Klongs routes and water pathways from Klongs to this reservoir. In this station, the water flowing into the reservoir is filtered through the machines, to remove trashes before letting the water in the reservoir, enhancing the wastewater treatment. For outlet station, we visited the management building of outlet station to observe the flow pump used for draining water from the reservoir to exterior Klongs. We realized that the outlet station is also capable of draining the water from external Klongs into the reservoir as well, basically works as an inlet and outlet. For the outlet station, there are five flow pump machines at the station, which has the maximum flow rate at 4 cubic meter per second. The water pathway from the outlet is connected to Klong Prawet, which is the route to Chao Praya River and the ocean. According to the interview, the officers said that the main reasons that the draining of water from Klongs from the downtown area is slow, because the Klongs are somehow filled with the trashes blocking the water flowing to this reservoir. In addition, there are many subsequent Klongs that are usually overwhelmed with water in rainy season, adding the pressure flow in the Klongs plus the blocking of trashes, it lowers the flow rate of water from Klongs to the reservoir. Therefore, we also collected water sample from Klongs and from the reservoir for further investigation from this observation.
In the final of the investigation, we used all data collected from interview and observation to calculate the scale for our model. Since the investigation topic is to model the flow rate of water of the outlet of reservoir, the detailed information needed for the calculation of a model will be listed out clearly in the most efficiently organized way. The following table shows our data collected and given data from their brochure and exhibition.
In the second stage, we visited the inlet and outlet management station to observe the flow pump and how it works. For inlet station, we observed the Klongs routes and water pathways from Klongs to this reservoir. In this station, the water flowing into the reservoir is filtered through the machines, to remove trashes before letting the water in the reservoir, enhancing the wastewater treatment. For outlet station, we visited the management building of outlet station to observe the flow pump used for draining water from the reservoir to exterior Klongs. We realized that the outlet station is also capable of draining the water from external Klongs into the reservoir as well, basically works as an inlet and outlet. For the outlet station, there are five flow pump machines at the station, which has the maximum flow rate at 4 cubic meter per second. The water pathway from the outlet is connected to Klong Prawet, which is the route to Chao Praya River and the ocean. According to the interview, the officers said that the main reasons that the draining of water from Klongs from the downtown area is slow, because the Klongs are somehow filled with the trashes blocking the water flowing to this reservoir. In addition, there are many subsequent Klongs that are usually overwhelmed with water in rainy season, adding the pressure flow in the Klongs plus the blocking of trashes, it lowers the flow rate of water from Klongs to the reservoir. Therefore, we also collected water sample from Klongs and from the reservoir for further investigation from this observation.
In the final of the investigation, we used all data collected from interview and observation to calculate the scale for our model. Since the investigation topic is to model the flow rate of water of the outlet of reservoir, the detailed information needed for the calculation of a model will be listed out clearly in the most efficiently organized way. The following table shows our data collected and given data from their brochure and exhibition.
Data Collection method
Questions asked during Visit to Nong bond reservoir
- Reservoir dimensions,
- Inlet Outlet management,
- the ongoing construction of the tunnel
- How flow rates are measured,
- How decision in regard to water pumping is made,
- Water movement in reservoir
- Impact reservoir have on the community.