ALTERNATIVE SELECTION OF DOMESTIC WASTEWATER MANAGEMENT SYSTEM ON SPECIFIC AREA WITH COST-BENEFIT ANALYSIS BASED ON SETTLEMENT TYPOLOGY (CASE STUDY: LOK BAINTAN AREA)
Domestic wastewater from riverbanks is generally difficult to manage due to specific conditions on each typology of settlements in the area. Various kinds of settlement typologies emerge due to different types of houses, environmental conditions and socio-economic conditions of the people in an a...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/57596 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Domestic wastewater from riverbanks is generally difficult to manage due to
specific conditions on each typology of settlements in the area. Various kinds of
settlement typologies emerge due to different types of houses, environmental
conditions and socio-economic conditions of the people in an area, so modifications
for wastewater management systems are required corresponding to each conditions
of settlement typologies. This study aims to choose an alternative domestic
wastewater management system that is suitable for each typology of settlements in
the Lok Baintan area, Sungai Tabuk District. The analysis used to determine the
settlement typologies is cluster analysis by K-Means non-hierarchical clustering.
The alternative selection uses the cost-benefit analysis method which is by
calculating the ratio of environmental and health benefits after the system is built
to the investment and operational costs incurred during the study period (benefitcost
ratio). Based on the results of cluster analysis, the Lok Baintan area can be
divided into 3 typologies of settlements above the river (SS-1, SS-2, SS-3), 3
typologies of land settlements (DT-1, DT-2, DT-3), and 3 typologies of transitional
settlements (TR-1, TR-2, TR-3). Type of house, population density, availability of
clean water, type of private latrine, groundwater level, and availability of land are
considered in the alternative formulation. The type of system and treatment
technology with the highest BCR value for DT-1, DT-2, DT-3, TR-2, and TR-3 is
on-site mixed system with modified concrete ring septic tank + upflow filter +
wetland and flush toilet. The selected system and treatment technology for SS-1, SS-
2, SS-3, and TR-1 is on-site separated system with Tripikon-S + wetland and
cemplung or flush toilet.
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