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All Journal Jurnal Sains Dan Teknologi Lingkungan International Journal for Advanced Research
Widodo B
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Strategi Penurunan Pencemaran Limbah Domestik di Sungai Code DIY B, Widodo; ., Kasam; L, Ribut; A, Ike
Jurnal Sains Dan Teknologi Lingkungan Vol 5, No 1 (2013): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

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Abstract

Kualitas air sungai terutama yang terletak di kawasan urban saat ini kondisinya semakin memprihatinkan. Upaya mengatasi permasalahan pencemaran air yang paling efektif adalah mencegah masuknya bahan pencemaran ke dalam badan air. Penelitian ini bertujuan untuk menganalisis tingkat pencemaran limbah dometik, menganalisis potensi pencemar air yang masuk ke Sungai Code, serta menganalisis strategi pengelolaan Sungai Code untuk menurunkan beban pencemaran yang masuk dari sumber domestik. Pengambilan sampel air limbah untuk uji laboratorium dari sumber pencemar domestik untuk 12 IPAL komunal. Parameter yang dianalisis antara lain COD, TSS, dan NH 3 . Penentuan responden didasarkan pada pendekatan penentuan sampel secara acak pada wilayah tertentu (area random sampling). Analisis Data terdiri dari analisa pencemaran limbah domestik, analisis potensi sumber pencemar, serta analisis strategi penurunan bebab pencemaran. Hasil penelitian menunjukkan kondisi yang baik, dimana konsentrasi outlet lebih rendah daripada inlet antara lain untuk COD di titik 2,3,4, dan 8, TSS di titik 2,3,4,5,6,11, dan 12 serta untuk NH 3 di titik 2,3,4,8, dan 9. Artinya, IPAL pada titik selain itu perlu dicek kembali optimalisasi fungsinya. Strategi sosial penurunan pencemaran limbah domestik antara lain dengan pemberdayaan masyarakat, penguatan komunitas lokal, serta optimalisasi kelembagaan formal. Kata Kunci : Limbah Domestik, Strategi Penurunan, Sungai Code, Yogyakarta
Magnetohydrodynamic Nanofluid Flows Over a Smart Fabric Under the Effects of Mixed Convection, Magnetic Field, Stretching Force, and Radiation Zaitun; Widodo B; Imron C; Adzkiya D
International Journal of Advanced Research Vol. 2 No. 2: August 2025
Publisher : Outline Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61730/8etycr64

Abstract

The study of Magnetohydrodynamic (MHD) has been widely discussed with complex problems. Just as this topic involves inductive polymers or smart fabrics for engineering in machinery or protective equipment. The smart fabrics that can be involved in MHD studies become a useful material. The smart fabric is a sheet of inductive polymer that can be an influence in the MHD analysis as well as a parameter that can be considered. In this study, the MHD of nanofluid, namely Iron-(III)-oxide flows past in smart fabrics under influence of magnetic field and radiative flux is studied by constructing a mathematical model and then the model solved numerically using the Keller-Box scheme. The effect of Mixed Convection and stretching parameter is considered on the model. Numerical simulations were carried out to examine the effect of the parameters, are obtained the profile of  velocity and temperature increase when the magnetic and stretching parameters increases, the velocity profile and temperature decreases when the Prandtl number are increases, the profiles of velocity are decreases and temperature increases when porosity variable and volume fraction parameter’s value increases, and the profile of  temperature increase when the mixed convection’s value and the radiation parameter increases.
Co-Authors Adzkiya D Ike A, Ike Imron C Kasam, Ir Ribut L, Ribut Zaitun