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All Journal Jurnal Ilmiah Wahana Pendidikan Envirous Environmental Science and Engineering Conference Proceeding Jurnal Sains dan Teknologi Envirotek : Jurnal Ilmiah Teknik Lingkungan Jurnal Teknik Mesin, Industri, Elektro dan Informatika Jurnal Kendali Teknik dan Sains Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Serambi Engineering Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Tuhu Agung Rachmanto
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Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

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Journal : Serambi Engineering

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Pengaruh Jumlah Blade, Kemiringan Sudut dan Jarak Pengaduk dari Dasar Pada Proses Koagulasi Flokulasi dalam Menurunkan Parameter TSS dan Kekeruhan Dzaky, Muhammad Luqman; Tuhu Agung Rachmanto
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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The quality of river water is influenced by the levels of Total Suspended Solids (TSS) and turbidity, which serve as indicators of environmental pollution. An effective method to reduce these parameters is the coagulation-flocculation process. The effectiveness of this process depends on physicochemical and hydrodynamic factors, including impeller design. However, hydrodynamic aspects such as the number of blades, blade angle, and distance of the impeller from the bottom are rarely considered in detail in previous studies. Therefore, the objective of this study is to analyze the optimal impeller design to improve TSS and turbidity removal efficiency. This study examines variations in the number of blades (2, 4, and 6), blade angles (0°, 30°, 45°, and 60°), and impeller distance from the bottom (3 cm, 4 cm, and 5 cm). The results indicate that the optimum impeller design for TSS and turbidity reduction is 6 blades, 0° blade angle, and 5 cm impeller distance from the bottom. Under these conditions, TSS removal reached 93.5%, while turbidity removal reached 98.2%. These results demonstrate that proper impeller design can significantly improve the efficiency of the coagulation-flocculation process.
Penerapan Aplikasi Primer 7 untuk Analisis Keanekaragaman dan Penyerapan Karbon oleh Vegetasi Mangrove di Terminal Teluk Lamong Sophia Alvin Nurina; Yulia Masladen; Tuhu Agung Rachmanto
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Mangrove vegetation plays a crucial role in absorbing carbon dioxide (CO₂) and supporting the sustainability of coastal ecosystems. Terminal Teluk Lamong (TTL), as a strategic port area, has developed mangrove conservation initiatives to support carbon emission mitigation efforts. This study aims to analyze the diversity, biomass, carbon stock, and carbon absorption capacity of mangrove vegetation at TTL using the PRIMER 7 Application. The analysis of mangrove vegetation diversity through PRIMER 7 revealed variations among observation stations at Terminal Teluk Lamong. Station 1 contained four species with a moderate diversity index (H’ = 1.187) and high evenness (J’ = 0.8566). Station 2 had three species with H’ = 0.826, indicating dominance by certain species. Station 3 showed the highest diversity, with six species and H’ = 1.307. Overall, the H’ values ranging from 0.8–1.3 indicate moderate diversity and a relatively stable mangrove community. In addition, the carbon absorption capacity reached 1,875,955.85 kg CO₂/ha, reflecting the high potential of mangrove vegetation in carbon sequestration. The findings highlight the effectiveness of mangroves as a natural carbon sink, which not only contributes to CO₂ absorption but also supports coastal ecosystem stability and environmental sustainability within the port area.
Pengaruh Variasi Elektroda untuk Penurunan Kadar TSS dan Kekeruhan Limbah Tekstil Batik Dalam Metode Elektrokoagulasi Ramadhani, Audyna Ayu; Tuhu Agung Rachmanto
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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The production of batik textiles causes serious environmental problems due to the direct discharge of wastewater into water bodies. The wastewater contains harmful substances that affect both living organisms and the environment. One effective treatment method is electrocoagulation, which combines electrochemical and flocculation–coagulation processes for wastewater treatment. This method reduces pollutant loads by varying electrode types. In this study, the electrodes used are Aluminum (Al), Iron (Fe), Copper (Cu), and Zinc (Zn) with contact times of 30, 60, 90, and 120 minutes. The electrodes are connected to a power supply and placed in an electrocoagulation reactor. The combination of electrode type and contact time significantly affects TSS (Total Suspended Solids) and turbidity. Longer contact time (30–120 minutes) leads to lower TSS and turbidity values due to the formation of Al(OH)₃ flocs, which adsorb suspended particles. The Al–Zn pair shows the best performance as it forms galvanic microcells that enhance metal ion dissolution. Statistical analysis reveals a strong correlation between TSS and turbidity, indicating effective treatment. Optimizing contact time improves electrocoagulation efficiency for batik wastewater treatment.
Co-Authors angger sulistya Aulia Ulfah Farahdiba Dzaky, Muhammad Luqman Egi Pebritama Elcyber Alqadri Andili Esha adiba Farhan Septiari Wibisono Geafiata Amalia Nurbaiti Ivan Ardiansyah Juan Vincent Elfonda Lintang Putri Rafsanjani M. Miftahul Huda M.Yureico Soobirumbassa U.K Yureico muhammad chumaidy maimun abdillah ainani jundah Muhammad Dani Dhaifullah Muhammad Dani Dhaifullah Muhammad Fairuz Akmal Muhammad Fairuz Akmal Namira Namira Naufal Syarif Ardyanto Naura Nisrine Hidayatullah Naurah Thifal Safitri Ni Putu Devina Putri Maharani Nurilita Amalia Cahyani Nurilita Amalia Cahyani Pranandito Wisnu Prabowo Rafif Permata Dwidewitra Ramadhani, Audyna Ayu Rizky Maulida Annisafitri Sophia Alvin Nurina Umi Hafilda Salamah Vidia Wahyu Meidy Safitri Vikhory Bagus Wahyu Nugroho Yulia Masladen Yuni Imroatul Mufida