Text

Pemetaan Kualitas Fisika - Kimia Airtanah Dangkal Dan Prediksi Intrusi Air Laut Di Desa Bantan Air, Kecamatan Bantan, Kabupaten Bengkalis, Provinsi Riau

---

Bengkalis Island has two kinds of environment, namely swamp and plain areas are influenced by tides due to sea waves, especially on the northern and southern coasts of Bengkalis Island. This research area is located in Bantan Air Village which is not far from the northern coast and is directly adjacent to the Malacca Strait. The purpose of this research was to determine the distribution and direction of groundwater flow, the feasibility of physico-chemical groundwater quality, the distribution of groundwater quality mapping zones, and prediction of seawater intrusion that occurred in Bantan Air Village, Bantan District, Bengkalis Regency, Riau Province. The research method used is the field survey method and laboratory analysis. The parameters tested in the laboratory analysis were color, taste, odor, Total Dissolved Solids (TDS), electrical conductivity (DHL), pH, chloride, and bicarbonate of 25 well stations consisting of 21 dug well stations and 4 other stations were pamsimas, drilled wells and trenches as comparison data. The direction of groundwater flow is from the Southwest, Northwest, and Southeast to the East and Northeast of the research area. The color of groundwater is divided into five, namely clear, cloudy, yellow, brown, and reddish brown; the groundwater odor is divided into two, namely smelly and odorless; The taste of groundwater is divided into two, namely tasteless and brackish, and the value of total dissolved solids (TDS) 48,1 mg/l – 1.217 mg/l, electrical conductivity (DHL) 44 ?S/cm– 2.054 ?S/cm, pH value 6,38 – 6,8, chloride (Cl-) 11,8 mg/l – 219 mg/l, and bicarbonate (HCO3-) 0 – 346 mg/l. The results of the analysis of the physical and chemical parameters of groundwater in the research area, there is 1 station (4%), namely at station 13 which is suitable for consumption, while the other 24 stations (96%) do not meet the Permenkes standard for drinking water or as Sanitation Hygiene. Comparison of chloride and bicarbonate ions resulted in four classifications of the level of influence of seawater intrusion on groundwater in the research area, namely No Effect of Saltwater (stations 4,10,19), Small Saltwater Effect (stations 1, 3,5,9,14, 18, 20, 21), Medium Saltwater Effect (stations 2,7,8,12,13,15,16, 17), and Quite Large Saltwater Effect (stations 6,11). From the seawater intrusion map made using the ratio of chloride ions and bicarbonate ions, it can be predicted that the largest seawater intrusion occurs in the Northwest and Southwest of the research area.

---

Availability

Detail Information

Call Number

Geologi 620.106 Ain P

Language

Indonesia

NPM

183610420

Publisher

Pekanbaru : Universitas Islam Riau., 2022

Keyword(s)

Air Laut
Groundwater Quality
Dug Wells
Groundwater Distribution
Zone Mapping
Seawater Intrusion Prediction.

Other Information

Petugas

Uthi Kurnia

Other version/related

File Attachment

Comments

---

You must be logged in to post a comment