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All Journal JURNAL INTEGRASI PROSES Media Ilmiah Teknik Lingkungan Journal of Community Based Environmental Engineering and Management Engineering Science Letter
Andika Munandar
Environmental Engineering Study Program, Institut Teknologi Sumatera, Lampung Selatan, 35365, Indonesia
Computer Science & IT Control & Systems Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health Other

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Daur Ulang Air Buangan Menjadi Air Baku Dengan Sistem Filtrasi Di PT P (Industri Kertas) Andika Munandar; Vinda Avri; Sillak Hasiany
Media Ilmiah Teknik Lingkungan (MITL) Vol 5 No 2 (2020): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v5i2.1395

Abstract

Air buangan merupakan air dari pengolahan air limbah yang telah memenuhi baku mutu sebagai air buangan ke lingkungan, namun beberapa pabrik mengolah air buangan menjadi air baku untuk memenuhi kebutuhan air pada proses produksi. Proses produksi pabrik kertas berjalan secara kontiyu sehingga kebutuhan air sangat besar. Hal ini menjadi permasalahan karena untuk memenuhi kebutuhan air pabrik menggunakan air permukaan (sungai) dan peraturan tentang regulasi kualitas air. Oleh sebab itu pabrik kertas melakukan inovasi berupa penggunaan kembali air buangan dengan sistem filtrasi sehingga didapatkan kualitas air baku yang memenuhi kualitas air yang dapat digunakan untuk proses produksi. Hasil dari sistem filtrasi pada air buangan memiliki kondisi optimal 30 detik saat proses filtrasi dan menunjukkan penurunan sebesar TSS 67,21%, COD 64,9%, Kekeruhan 62,35% dan warna 79,96 % yang menunjukkan telah memenuhi baku mutu dari perusahaan dan pemerintah.
Reduction of Chemical Oxygen Demand (COD) and Total Suspended Solid (TSS) Levels in Rubber Wastewater Using Biosand Filter Reactor with Activated Carbon Media Based on the Effect of Residence Time Lisbet Farida Sinaga; Andika Munandar; Rifka Noor Azizah
Journal of Community Based Environmental Engineering and Management Vol. 7 No. 1 (2023): Vol. 7 No.1, March 2023
Publisher : Department of Environmental Engineering - Universitas Pasundan - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jcbeem.v7i1.6285

Abstract

Wastewater from the rubber industry that is not treated optimally can be one of the causes of environmental damage. Initial concentration of COD waste rubber liquid 711 mg/l and TSS 407 mg / l. Biosand Filter with activated carbon can eliminate pathogenic bacteria by passing the sand in the filter and activated carbon will absorb organic substances. This study aims to determine the effectiveness of concentration reduction, COD and TSS, using a reactor with BioSand Filter reactor dimensions used measuring 12 cm x 12 cm x 120 cm and its effect on residence time. Filter Media used are sand, gravel, pumice and activated carbon. The research variable is the residence time in the reactor (10, 30, 50, 70, and 90 minutes). Removal efficiency after being processed using Biosand Filter technology with activated carbon media lowered the concentration of COD and TSS parameters to 93% for COD and 79% for TSS. Test the effect of residence time to reduce the levels of COD and TSS is done by regression test has a value of R2=0.7014 for COD and R2=0.681 for TSS, with tcount > ttable. the results show that the residence time of rubber wastewater in the reactor affect the decrease levels of COD and TSS, and quite effective in eliminating COD and TSS parameters.
REDUCTION OF TSS AND COD IN RESTAURANT WASTEWATER USING NATURAL COAGULANT FROM KEPOK BANANA PEEL POWDER Mutiara Fajar; Iis Mulyani; Andika Munandar
JURNAL INTEGRASI PROSES Vol 13, No 1 (2024)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jip.v13i1.22122

Abstract

Wastewater from restaurant activities contains organic compounds such as carbohydrates, proteins, fats, and oils that can pollute and damage the environment. Therefore, further research is needed to prevent this pollution. This study aims to analyse the characteristics of restaurant wastewater and utilise kapok banana peel waste as a natural coagulant to reduce TSS (total suspended solid) and COD (chemical oxygen demand) concentrations in the wastewater. Additionally, this study aims to analyse the correlation between the reduction in TSS and COD concentrations after the coagulation process. The results showed that kapok banana peel powder has polyelectronic properties and contains carboxyl, hydroxyl, and amide groups acting as active components in the coagulation-flocculation process. The coagulation-flocculation process was efficient at 400 mg biocoagulant, with reduction efficiencies of 92% for TSS and 73% for COD. Based on Pearson correlation analysis using SPSS, the reduction in TSS and COD concentrations had a very strong (r=0.954) and significant (Sig.=0.000) relationship.
Modelling Optimisation of Distributed PV-Battery Charge and Discharge Modes Using Systems for Improved Sustainable Energy Management Syamsyarief Baqaruzi; Amrina Mustaqim; Ali Muhtar; Muhammad Rizky Hikmatullah; Rahmat Fadhilah; Andika Munandar; Edo Kharisma Army; Setiadi Wira Buana; Rizqi Wahyudi; Muhammad Rifqi Dwi S
Engineering Science Letter Vol. 5 No. 01 (2026): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56741/IISTR.esl.001508

Abstract

This study examines the simulation of charge and discharge modes of lithium-ion batteries in a distributed photovoltaic system using MATLAB/ Simulink modeling. The objective is to analyze the integration of solar panels with battery-based energy storage systems to optimize performance and efficiency. The methodology involves mathematical modeling of photovoltaic cells based on p-n junctions, with key parameters such as temperature (15–30°C) and irradiance (1000 W/m²), along with the design of a Solar Charge Controller (SCC) to regulate energy flow. Simulations were conducted on four 150 W photovoltaic panels under varying environmental conditions, integrated with parallel-connected 12 V 250 Ah batteries. Results show a system efficiency of 87% at 25°C and 1000 W/m² irradiance, with panel output voltages aligning with mathematical equations (0.15 A error). Discharge mode analysis, accounting for system losses (inverter 5%, SCC 3%, wiring 2%), confirms the battery can supply a 5 Ω load for approximately 2.00 hours at 45% State of Charge (SOC), representing a 9.5% reduction from the ideal calculation. Simulations also compare SCC performance using DC and photovoltaic sources, demonstrating consistency in energy flow regulation. Validation results indicate the Simulink model’s accuracy in representing real-world characteristics, though MATLAB code simulations exhibit higher precision. The study highlights the importance of SCC control and SOC management to enhance battery lifespan and stability in renewable hybrid energy systems. Implications include potential applications.
Co-Authors Ali Muhtar Amrina Mustaqim Buana, Setiadi Wira Edo Kharisma Army Iis Mulyani Lisbet Farida Sinaga Muhammad Rifqi Dwi S Muhammad Rizky Hikmatullah Mutiara Fajar Rahmat Fadhilah Rifka Noor Azizah Rizqi Wahyudi Sillak Hasiany Syamsyarief Baqaruzi Vinda Avri