IDENTIFIKASI WASTE DENGAN WASTE ASSESSMENT MODEL UNTUK REKOMENDASI PERBAIKAN PROSES PRODUKSI PENGOLAHAN AIR (Studi Kasus: IPAM Karangpilang PDAM Surya Sembada Kota Surabaya)

Abstract

Abstrak

PDAM Surya Sembada Kota Surabaya merupakan perusahaan air minum yang bertugas memenuhi kebutuhan air bersih masyarakat Kota Surabaya. Meskipun PDAM Surya Sembada telah mendapatkan stastus PDAM terbaik di Jawa Timur, tetapi tetap saja masih ditemukan beberapa kendala yang terjadi pada perusahaan tersebut seperti sistem pendistribusian air yang belum optimal yang dilihat dari kelangsungan distribusi air dalam waktu 24 jam yang diterima oleh pelanggan, laporan hasil pengecekan yang dilakukan menunjukaan adanya sejumlah sampel yang terdapat bahan kimia yang tidak sesuai dengan standar yang telah ditentukan, dan terdapat zat bahan kimia yang disimpan melewati batas kadaluwarsa. Kendala-kendala tersebut dapat dihilangkan dengan menggunakan pendekatan lean manufacturing dengan metode Value Stream Mapping (VSM) dan Waste Assessment Model (WAM) untuk dapat mengetahui keterkaitan waste yang terjadi di dalam proses. Berdasarkan metode WAM diketahui terdapat 3 waste kritis yaitu overproduction, process, dan motion. Selanjutnya dilakukan analisis terhadap akar masalah dengan Root Cause Analysis (RCA) 5 Why’s serta mencari nilai resiko dengan menggunakan metode FMEA atau Failure Mode and Effect Analysis. Pada FMEA dikategorikan kritis ketika nilai 80 ≤ RPN ≤ 120 untuk dilakukan analisis terhadap rekomendasi perbaikan yang akan dilakukan.

Kata Kunci: Value Stream Mapping (VSM), Waste Assessment Model (WAM), 5 Why’s, Failure Mode and Effect Analysis (FMEA).

Abstract

[Waste Identification with Waste Assessment Model for Recommendation of Improvement of Water Treatment Production Process (Case Study: IPAM Karangpilang PDAM Surya Sembada Surabaya)] PDAM Surya Sembada Surabaya City is a drinking water company in charge of meeting the clean water needs of the Surabaya City community. Although PDAM Surya Sembada has received the best PDAM status in East Java, there are still some obstacles that occur in the company such as the water distribution system that has not been optimized as seen from the continuity of water distribution within 24 hours received by customers, the report on the results of the checks carried out shows that there are a number of samples that contain chemicals that are not in accordance with predetermined standards, and there are chemicals that are stored past the expiration date. These obstacles can be eliminated by using a lean manufacturing approach with the Value Stream Mapping (VSM) and Waste Assessment Model (WAM) methods to find out the relationship of waste that occurs in the process. Based on the WAM method, it is known that there are 3 critical wastes, namely overproduction, process, and motion. Furthermore, the root cause analysis (RCA) of 5 Why's was analyzed and the risk value was sought using the FMEA or Failure Mode and Effect Analysis method. FMEA is categorized as critical when the value of 80 ≤ RPN ≤ 120 to analyze the improvement recommendations to be made.

Keywords: Value Stream Mapping (VSM), Waste Assessment Model (WAM), 5 Why’s, Failure Mode and Effect Analysis (FMEA).