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Implementasi Sistem Manajemen Lingkungan Berbasis ISO 14001 dalam Meningkatkan Efisiensi Energi di Sektor Perusahaan Daerah Air Minum Kota Bandung Salimi, Sonny
SEIKO : Journal of Management & Business Vol 7, No 1.1 (2024)
Publisher : Program Pascasarjana STIE Amkop Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37531/sejaman.v7i1.7390

Abstract

Penerapan Sistem Manajemen Lingkungan (SML) berbasis ISO 14001 di sektor perusahaan daerah air minum kota bandung memainkan peran penting dalam meningkatkan efisiensi energi dan kelestarian lingkungan. Penelitian ini mengeksplorasi dampak adopsi ISO 14001 di PDAM, dengan fokus pada pengaruhnya terhadap konsumsi energi, kesadaran karyawan, dan kinerja lingkungan. Data dikumpulkan dari berbagai PDAM yang telah mengadopsi standar tersebut, dengan menyoroti hasil utama dan tantangan yang dihadapi selama implementasi. Hasilnya menunjukkan penurunan konsumsi energi yang signifikan, dengan beberapa PDAM melaporkan penurunan sebesar 15-25% karena penggunaan teknologi hemat energi, pemantauan sistematis, dan audit lingkungan secara berkala. Pelatihan karyawan juga memainkan peran penting dalam meningkatkan kesadaran dan partisipasi dalam praktik hemat energi.Penelitian ini merekomendasikan investasi berkelanjutan dalam teknologi berkelanjutan, pelatihan karyawan yang konsisten, dan kemitraan yang lebih kuat dengan pemasok yang sadar lingkungan untuk lebih memperkuat penerapan ISO 14001 di industri perusahaan daerah air minum kota bandung Kata kunci: ISO 14001, Sistem Manajemen Lingkungan, efisiensi energi, sektor perusahaan daerah air minum kota bandung, dampak lingkungan.
Verifikasi Metode Uji Penetapan Logam Terlarut Mangan pada Air Menggunakan Inductively Coupled Plasma Mass Spectrometer Salimi, Sonny; Wahyuni, Sri; Pratama, Intan; Purnamasari, Erianti Siska
Jurnal Kartika Kimia Vol 8 No 1 (2025): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v8i1.908

Abstract

Clean water is defined as water used for daily needs that meets the quality standards set by regulations. To qualify as clean water, it must undergo physical and chemical testing, including metal content analysis. One such metal is manganese, which is regulated with a maximum allowable concentration of 100 µg/L due to its potential to cause chronic toxicity at high levels. This study aimed to determine the concentration of dissolved manganese in clean water samples using the Inductively Coupled Plasma Mass Spectrometry (ICP-MS) method at LPKL Perumda Tirtawening. Method verification was conducted to ensure the reliability and accuracy of the analysis. The results demonstrated excellent linearity (r ≥ 0.995), a detection limit below 100 µg/L, precision with %RSD < 0.5 CV Horwitz, and accuracy with a %recovery of 102.03%. These findings confirm that the ICP-MS method is valid and suitable for manganese testing in clean water at LPKL Perumda Tirtawening.
Optimization of Poly Aluminum Chloride Liquid Dosage in Clean Water Treatment Using Box-Behnken Design Purnamasari, Erianti Siska; Patrakomala, Nira; Wahyuni, Sri; Salimi, Sonny
Jurnal Kartika Kimia Vol 8 No 2 (2025): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v8i2.978

Abstract

Various human activities that are increasing will have an impact on the decline in the quality of raw water, a key source of clean water production. To achieve optimal results in the clean water treatment process, a suitable formulation is required for the addition of liquid PAC, which acts as a coagulant to reduce the turbidity level of raw water. Currently, the formulation of liquid PAC dosage in raw water treatment has an accuracy level of less than 70%. Therefore, a method is needed to improve the accuracy level of PAC dosage. Box-Behnken Design (BBD) is one of the RSM design methods, which can analyze problems whose responses are influenced by several variables, where the interaction can be used to predict the optimal formula. This study aims to determine the optimal dosage of liquid PAC required for clean water treatment using the Box-Behnken Design. Before the optimization process is carried out, it is necessary to select parameters that have a significant effect. The methodology in this study is divided into two main stages. The first stage involves parameter selection using Design-Expert Two-Level Factorial, with five parameters tested: liquid PAC dosage, turbidity, pH, stirring speed, and stirring time. The second stage involves optimizing parameters that have a significant effect using Design-Expert Box-Behnken. The results obtained from the parameter selection process indicate that turbidity and liquid PAC dosage have a significant effect. Optimization is carried out by entering the turbidity parameters and liquid PAC dosage as independent variables, with the response being the final turbidity. The results show that in water with turbidities of 20 NTU, 60 NTU, and 100 NTU, the optimum liquid PAC concentration is 50 ppm, with percentage reductions in turbidity of 95.72%, 97.13%, and 97.37%, respectively. BBD shows that there is a significant parameter interaction between the turbidity parameter and the liquid PAC dosage, while there is no significant interaction between the turbidity parameter and pH, and the pH parameter and the liquid PAC dosage.