Analysis of the Potential of Crust Formation and Corrosiveness in the Way Rilau PDAM Lampung Distribution Network Using the Langelier Saturation Index Method

Anwar, Anwar and Sembiring, Alexander and Irawan, Agustinus P. Analysis of the Potential of Crust Formation and Corrosiveness in the Way Rilau PDAM Lampung Distribution Network Using the Langelier Saturation Index Method. Analysis of the Potential of Crust Formation and Corrosiveness in the Way Rilau PDAM Lampung Distribution Network Using the Langelier Saturation Index Method.

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Abstract

Crust formation is a complex problem and always occurs in piping
systems, both in oil piping systems, industry, and water distribution. When the crust
is formed on the pipe, it will cause the pipe diameter to shrink and inhibit the flow
of fluid in the pipe system. If the pipe has a problem, its temperature and pressure
will be higher, increasing the possibility of the pipe to break and get damaged. This
study aims to determine the formation of PDAM water pipe scale in Bandar
Lampung with the Langelier Saturation Index Method. Based on the LSI calculation
results, a value of -0.9 is obtained. This indicates that the corrosion rate is high, but
there is no visible potential for scale formation. Formation of corrosion in the pipe
can cause the pipe wall to thin out thereby increasing the potential for pipe leakage.
Due to this, the checking of the pipes is necessary. Potential leakage of pipes will
disrupt the distribution system and reduce service levels of PDAM Bandar
Lampung City. Increasing the value of LSI in water can increase the pH of each
water source. Increasing the pH will cause an increase in the value of LSI so that it
is in neutral conditions and the level of corrosivity decreases. In addition, the flow
velocity of water needs to be maintained with a minimum speed of 0.3 m/s to
prevent the formation of scale on the pipes. Keywords: scale, corrosivity, LSI value.

Item Type:	Article
Subjects:	Penelitian > Fakultas Teknik
Divisions:	Fakultas Teknik > Teknik Sipil
Depositing User:	Puskom untar untar
Date Deposited:	29 Dec 2020 07:24
Last Modified:	29 Dec 2020 07:24
URI:	https://repotest.untar.ac.id/id/eprint/13936

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