PENGARUH FLUKTUASI DEBIT AIR BAKU TERHADAP PEMAKAIAN DAN DOSIS POLY ALUMINIUM CHLORIDE DI INSTALASI PENGOLAHAN AIR PESANGGRAHAN

Yoselin, Salma (2026) PENGARUH FLUKTUASI DEBIT AIR BAKU TERHADAP PEMAKAIAN DAN DOSIS POLY ALUMINIUM CHLORIDE DI INSTALASI PENGOLAHAN AIR PESANGGRAHAN. Tugas Akhir (S1) - thesis, Universitas Bakrie.

	Text (Cover) 00.Cover.pdf - Accepted Version Download (3MB)
	Text (Bab I-III) 01.Bab I-III.pdf - Accepted Version Restricted to Registered users only Download (3MB) | Request a copy
	Text (Bab IV) 02.Bab IV.pdf - Accepted Version Restricted to Registered users only Download (3MB) | Request a copy
	Text (Bab V) 03.Bab V.pdf - Accepted Version Restricted to Registered users only Download (3MB) | Request a copy
	Text (Daftar Pustaka) 04.Daftar Pustaka.pdf - Accepted Version Download (3MB)
	Text (Lampiran) 05.Lampiran.pdf - Accepted Version Restricted to Registered users only Download (3MB) | Request a copy

Abstract

Fluctuating raw water availability poses a challenge for the Pesanggrahan Water Treatment Plant (WTP) in maintaining efficient Poly Aluminium Chloride (PAC) coagulant use and treated-water quality. Raw water flow at the Pesanggrahan WTP fluctuated within 252–547 L/s during September–December 2025, affecting velocity gradient and PAC dosage. This study analyzes flow fluctuation's influence on coagulation performance and PAC dosage requirements. Methods included descriptive analysis of secondary flow data, simple linear regression to evaluate the flow-dosage relationship, and jar tests following SNI 19-6449-2000, with jar-test RPM calculated based on velocity-gradient (G) equivalence per SNI 6774:2025, on samples representing low, medium, and high flow. Results showed a negative relationship between flow fluctuation and PAC dosage requirements, with regression coefficients of determination (R²) ranging from 0.6687–0.98658 and a jar-test R² of 0.8567. The lowest PAC dosages meeting water-quality criteria within the tested range (20–34 mg/L) were 20 mg/L for low flow, 23 mg/L for medium flow, and 20 mg/L for high flow, all producing turbidity below 3 NTU and pH 6.5–8, per Indonesian Ministry of Health Regulation No. 2 of 2023. Adjusting dosage based on actual flow could reduce PAC consumption by 23–36% versus the existing dosage of 26 mg/L, without compromising treatment performance. Keywords: flow fluctuation, coagulation, Poly Aluminium Chloride (PAC), jar test, Pesanggrahan WTP

Item Type:	Thesis (Tugas Akhir (S1) - )
Uncontrolled Keywords:	flow fluctuation, coagulation, Poly Aluminium Chloride (PAC), jar test, Pesanggrahan WTP
Subjects:	Environmental Science and Technology > Water Supply Environmental Science and Technology > Water Treatment and Conditioning Thesis > Thesis (S1)
Divisions:	Fakultas Teknik dan Ilmu Komputer > Program Studi Teknik Lingkungan
Depositing User:	Salma Yoselin
Date Deposited:	08 Sep 2026 05:04
Last Modified:	08 Sep 2026 05:04
URI:	https://repository.bakrie.ac.id/id/eprint/14355

Actions (login required)

View Item