Water Consumption Analysis of Small Islands Supplied With Desalinated Water in Indonesia

Purwandari, Tiasti Wening; Kazama, Shinobu; Takizawa, Satoshi

doi:10.2208/jscejer.77.7_iii_129

Cited by 1 publication

(2 citation statements)

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“…The state of the SWRO facility on Belakang Padang Island may have differed from that on Labu Island because they have been in operation for different durations. An earlier study of the Belakang Padang Island SWRO facility observed that its operation tended to be stable [28]; since that study, challenges have arisen that have negatively impacted both the government and the community. From our interview with water resource manager in 2023, the amount of water produced daily by the Belakang Padang Island SWRO facility has been impacted by an increase in the number of houses connected by pipes.…”

Section: Swro Facility Conditionsmentioning

confidence: 97%

“…[25][26][27] A previous study investigated SWRO systems in a few regions of Indonesia; however, these systems were located far apart and/or near tourist destinations. [28] By contrast, small islands on the periphery of Indonesia may be less economically profitable but must still be safeguarded to maintain the integrity of Indonesia's international borders. The aim of the present study was to assess the sources of clean water and obstacles to meeting clean water demands on small islands.…”

Section: Introductionmentioning

confidence: 99%

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Field survey of seawater reverse osmosis (SWRO) usage for overcoming water scarcity on small islands in Indonesia

Savitri,

Souma,

Ishidaira

et al. 2024

Preprint

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The dry season impacts clean water availability in Indonesia, particularly on small islands; however, there are few comprehensive studies of water availability on small islands. The aim of this study was to assess clean water sources and the obstacles to accessing clean water on small islands. We used a combination of structured questionnaires and interviews along with direct observations on two small islands in Indonesia, Belakang Padang Island and Labu Island. On Belakang Padang Island, we interviewed the water resource manager in October 2022 and May 2023, and surveyed 61 households in Tanjung Sari subdistrict RT No. 002/RW No. 002 in October 2022. On Labu Island, we interviewed the staff of the seawater reverse osmosis (SWRO) system and surveyed 35 coastal households in September 2023. On both islands, the government has improved residents’ access to clean water by constructing SWRO facilities. The small SWRO facility on Labu Island ran more efficiently and stably as it was powered by a generator. The larger SWRO facility on Belakang Padang Island experienced disruptions during periods of unstable electricity generation supplied by the State Electricity Company. The absence of septic tanks pollutes the surrounding area and increases the risk of contaminating underground water and pipe networks (reservoirs and SWRO) during high tides, and seawater used for SWRO’s raw water. Our findings recommended the use of generators or sustainable generators for SWRO on small islands to achieve stable SWRO operation, as well as the use of an appropriate septic tank for coastal communities on small islands.

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Section: Swro Facility Conditionsmentioning

confidence: 97%