Your search found 4 records
1 Ratnayake, U.; Harboe, R. 2007. Deterministic and stochastic optimization of a reservoir system. Water International, 32(1):155-162.
Reservoir operation ; Optimization ; Hydrology ; Mathematical models ; Case studies ; Energy generation ; Water power / Thailand / Chao Phraya River / Ping River / Nan River / Sirikit Reservoir / Bhumibol Reservoir
(Location: IWMI HQ Call no: P 7976 Record No: H040523)
2 Matsui, Y.; Takeda, T.; Takizawa, S.; Wongrueng, A.; Wattanachira, S. 2006. Application of nanofiltration processes to fluoride removal from groundwaters in the Chiang Mai Basin. In Water, Engineering and Development Centre (WEDC). Sustainable development of water resources, water supply and environmental sanitation: 32nd WEDC International Conference, Bandaranaike Memorial International Conference Hall, Colombo, Sri Lanka, 13th - 17th November 2006. Preprints. Leicestershire, UK: Water, Engineering and Development Centre (WEDC) pp.585-592.
River basins ; Groundwater ; Fluorides ; Analysis ; Water purification / Thailand / Chiang Mai Basin / Ping River
(Location: IWMI HQ Call no: 333.91 G000 WAT Record No: H041052)
3 Pholkern, K.; Srisuk, K.; Grischek, T.; Soares, M.; Schafer, S.; Archwichai, L.; Saraphirom, P.; Pavelic, Paul; Wirojanagud, W. 2015. Riverbed clogging experiments at potential river bank filtration sites along the Ping River, Chiang Mai, Thailand. Environmental Earth Sciences, 73:7699-7709. [doi: https://doi.org/10.1007/s12665-015-4160-x]
Riverbank protection ; Filtration ; Hydraulics ; Water quality ; Sedimentation ; Flow discharge / Thailand / Chiang Mai / Ping River
(Location: IWMI HQ Call no: e-copy only Record No: H047065)
(4.11 MB)
Riverbank filtration (RBF) is a process during which river water is subjected to subsurface flow prior to abstraction wells, often characterized by improved water quality. The induced infiltration of river water through the riverbed also creates a clogging layer. This decreases riverbed permeability and abstraction rates, particularly if the river water has high turbidity, as in Thailand. As Chiang Mai Province is one of the most favorable sites for future RBF construction in Thailand, two sites, Mae Rim and San Pa Tong, were selected to simulate clogging by using a channel experiment. The mobile experimental apparatus was set up at the bank of the river in order to use fresh river water. Riverbed sediment was used as channel bed and filling material for the columns. The aim was to simulate riverbed clogging using river water with high turbidity and determine the effect of clogging, which can be quantified using vertical hydraulic conductivity (Kv). An increase in channel flow velocity caused partial removal of a clogging layer in only the top 0.03 m of the sediment column. The combination of low channel flow and high turbidity leads to much more clogging than high channel flow and low turbidity. A complete manual removal of the external clogging layer led to an increase in Kv, but the initial Kv values were not recovered. The external clogging had a lower effect on Kv than internal clogging. For planning new RBF sites along high-turbidity rivers, reduction in Kv to estimate RBF well yield cannot be calculated based only on initial Kv but requires field experiments.
4 Supriyasilp, T.; Pongput, K. 2021. Water balance model as a tool for building participation and joint water use promotion at the river basin level. Irrigation and Drainage, 70(2):254-268. [doi: https://doi.org/10.1002/ird.2541]
Water balance ; Models ; Participation ; Collaboration ; Water management ; Crop water use ; Water requirements ; River basins ; Farmers ; Government agencies ; Irrigation schemes ; Pumping ; Water users ; Evapotranspiration ; Rain / Thailand / Muang Luang Irrigation Scheme / Ping River
(Location: IWMI HQ Call no: e-copy only Record No: H050368)
(8.27 MB)
To promote collaboration on water management between farmers and government agencies, both parties must have a mutual understanding of the measurement and management of available water resources using existing infra- and non-infrastructure management tools. They are required to provide collaborative water management through appropriate technology, with capacity building and knowledge management. In this study, the water balance model was used as a tool to induce participation and the promotion of a joint water use at the river basin level. The amount and proportion of water use from different types of water sources were calculated based on this water balance model. Moreover, farmers were encouraged to help with water flow measurements using technologies and principles that were simple but accurate in terms of engineering aspects. According to the analyses of water use proportions, a large amount of water from pumping stations was used during the dry season at high cost. When aware of the proportion of water used, farmers collaboratively established guidelines on an effective water management in the area, including large-scale viewpoints applicable beyond the actual areas. Overall, these guidelines will eventually bring positive results to other downstream water users.
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