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Analisis Penurunan Suhu Air Limbah PLTU Menggunakan Cooling Water Way pada PLTU Jeneponto 2X125MW Istiawati Darwis; Muhammad Dwiyanto Agung Prakasa; Muh Sucitra Amansah
Journal of Applied Civil and Environmental Engineering Vol. 3 No. 2 (2023): Oktober
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/jacee.v3i2.4463

Abstract

PLTU merupakan prasarana yang sangat menopang kehidupan masyarakat sekarang ini. PLTU merupakan sarana yang sangat dibutuhkan tetapi juga berkonstribusi dalam pencemaran limbah utamanya air limbah panas. Sehingga sangat perlu dilakukan analisa keefektifan instalasi saluran air pendingin (cooling water way) PLTU, sesuai atau tidak dengan ketentuan yang berlaku sehingga air limbah dapat dilepas ke laut dengan suhu normal tanpa mencemari lingkungan sekitarnya. Metode yang digunakan adalah pengolahan hasil pengukuran menggunakan aplikasi civil3D dan surfer. Hasil dari penelitian menandakan bahwa instalasi saluran air pendingin (cooling water way) tidak efektif dalam menurunkan suhu air limbah PLTU Jeneponto sehingga dapat mencemari laut. Untuk meningkatkan keefektifannya perlu diadakan perlakuan terhadap air limbah untuk menurunkan suhunya serta perencanaan yang lebih baik untuk pembuatan instalasi saluran pendingin selanjutnya.
Kondisi Lalu Lintas dan Tingkat Pelayanan Jalan Persatuan Raya Kabupaten Sinjai Muh Sucitra Amansah; Istiawati Darwis; Muhammad Dwiyanto Agung Prakasa
Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Vol 14 No 1 (2026): Jurnal Konstruksi dan Infrastruktur Vol 14 No.1 : April 2026
Publisher : Civil Engineering Department, Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jki.v14i1.12007

Abstract

Persatuan Raya Road serves as a primary urban corridor in Sinjai Regency, accommodating daily mobility and supporting local socio-economic activities. As activities along the corridor continue to increase, the road is becoming more vulnerable to a decline in performance. This study employed a quantitative descriptive approach based on field survey data. Traffic data were collected through 14-hour traffic counting surveys conducted on both weekdays and weekends, complemented by spot speed surveys during peak hours and geometric inventory of the roadway. Data analysis was conducted based on PKJI 2023 by calculating traffic volume, road capacity, degree of saturation, and average vehicle speed to determine the level of service. The highest traffic volume was recorded at 1,094 pcu/hour on weekdays and 939 pcu/hour on weekends. Road capacity ranged from 3,198.56 pcu/hour to 3,322.53 pcu/hour, while the degree of saturation ranged from 0.28 to 0.33 across all segments. The average vehicle speed ranged from 32 to 38 km/h on weekdays and from 38 to 42 km/h on weekends. These findings indicate that Persatuan Raya Road still operates under stable traffic conditions with a generally acceptable level of service. However, the quality of service has begun to experience pressure due to high roadside friction, particularly from on-street parking and intensive roadside activities. This study provides practical input for roadside activity control and short-term traffic management strategies in urban road corridors of regency-level cities.