Determination of peak hour and maximum daily factors on domestic usage patterns in the Special Region of Yogyakarta

Syahputra, Benny; Nafiah,; Poedjiastoeti, Hermin

doi:10.1088/1755-1315/1098/1/012078

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…Where: No = occupant count (person) Ef = effective floor area (%) A = total building area (m 2 ) Od = occupancy density level (m 2 /person) Once the number of residents is known, water requirements can be calculated using equation (7). The standard water usage used for buildings is 250 liters/person/day [11]. Qd = number of residents x standard water usage (7) Where :…”

Section: Calculation Methodsmentioning

confidence: 99%

Utilization of rainwater harvesting to conserve water in buildings in Semarang City

Syahputra

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Rainwater harvesting makes a major contribution to sustainable development. The utilization of rainwater for building operations is in line with sustainable development goals for 2030. This research aims to provide an overview of rainwater which can be used as an alternative source of raw water in buildings in Semarang City. This research was carried out purposively on buildings in the city of Semarang that had received function-worthiness certificates. The research results show that the largest rainwater harvesting dimension is the Ciputra building of 372 m3 with rainwater potential that can be utilized in the form of runoff of 0.758 m3/second or 65491.2 m3/day, while the smallest dimension is the Pusatand building of 55 m3 with rainwater potential which can be utilized in the form of runoff of 0.112 m3/second or 9679.8 m3/day. Municipal waterworks (PDAM) tariff costs have decreased after carrying out rainwater harvesting. The largest percentage decline was in the Ciputra building, namely 65.72%, while the smallest was in The Pinnacle at 5.16%. The size of the Municipal waterworks (PDAM) water tariff is determined by the ground floor area of the building since the ground floor area contributes to the dimensions of rainwater harvesting.

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Section: Calculation Methodsmentioning

confidence: 99%

Utilization of rainwater harvesting to conserve water in buildings in Semarang City

Syahputra

2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…The following is a calculation of rainfall intensity using the Mononobe Method: Table 3. Depth of groundwater for hotels and apartments in Semarang City [11] Based on Table 3 above, shows the condition of the groundwater level when there is no rain, even though based on SNI 03-2453-2002 requires a minimum groundwater level of 1.50 meters during the rainy season. This means that there are seven apartment and hotel buildings above that do not meet The conditions for disposal in infiltration wells are several hotels in the area including H2, H3, H4, H5, H6, H8, and H10.…”

Section: Analysis Of Average Maximum Rain Intensity Using the Mononob...mentioning

confidence: 99%

The potential of infiltration wells to reduce runoff in apartment and hotel buildings in Semarang City

Syahputra,

Satrio,

Adi

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Besides being used as groundwater recharge, infiltration wells function as runoff controllers. This study aims to analyze the runoff of apartment and hotel buildings in Semarang City. The method used to calculate rain intensity is the Mononobe method. The value of the flow coefficient is calculated using the Hassing method, while the standard used to calculate infiltration wells is SNI 03-2453-2002 concerning infiltration wells. Based on groundwater depth and soil permeability, seven apartment and hotel buildings are not suitable for implementing infiltration wells, namely: H2, H3, H4, H5, H6, H8, and H10. The remaining three buildings are feasible, namely: H1, H7, and H9. Runoff discharges in apartment and hotel buildings in Semarang City that are eligible to use infiltration wells are H1 at 0.13 m3/sec, H7 at 0.18 m3/sec, and H9 at 0.10 m3/sec. While the discharge of water that seeps through the infiltration wells with a minimum permeability of 0.168 m/hour is 1.71 m3/hour and the value of the discharge of water that seeps through the infiltration wells with a maximum permeability of 5.083 m/hour is 51.89 m3/hour.

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“…By treating the water at STP and then proceeding to WTP, the pollution content can be reduced below the threshold, making it suitable for reuse. The applications of the use of recycled water include watering plants, flushing toilets, and other operational uses, but it may not be used for drinking water [18] [19]. Gray water is calculated based on 70% of water use.…”

Section: Reuse Of Recycled Water From Gray Watermentioning

confidence: 99%

Water Conservation Model in Hotel and Apartment Building in Semarang City, Indonesia

Syahputra

2023

GEOMATE

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Environmental problems such as land subsidence, seawater intrusion, and groundwater contamination are the impacts of groundwater exploitation in hotel and apartment buildings in the city of Semarang. This research was conducted on ten buildings using a four-model approach to water conservation, which includes rainwater harvesting, water-saving plumbing fixtures, the reuse of recycled water from gray water, and condensate water from air conditioners in buildings. The results showed that rainwater harvesting contributes 13.12-166.77% of the total building water demand, depending on the size of the catchment area of the building. Rainwater harvesting can be combined with infiltration wells, but the research location is relatively shallow; the groundwater depth is less than 1 meter, so infiltration wells cannot be applied. The use of water-saving plumbing fixtures accounts for 6.4% of the total building water demand. Likewise, with gray water, the reuse of recycled water from gray water contributes 59.87-69.71% of the total building water demand. Gray water is treated at STP, then flows to RWT, then flows to WTP to be treated. Gray water should not be mixed with black water so that the treatment load at the STP and WTP is not too large. Finally, condensate water from air conditioners in buildings is no less important to note; although it contributes only 1.43% of the total building water demand, it plays a role in creating green buildings.

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Determination of peak hour and maximum daily factors on domestic usage patterns in the Special Region of Yogyakarta

Cited by 3 publications

References 2 publications

Utilization of rainwater harvesting to conserve water in buildings in Semarang City

Utilization of rainwater harvesting to conserve water in buildings in Semarang City

The potential of infiltration wells to reduce runoff in apartment and hotel buildings in Semarang City

Water Conservation Model in Hotel and Apartment Building in Semarang City, Indonesia

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