INFOMANPRO

Kombinasi Filter Bertingkat dan Wetlands Dapat Mengurangi Senyawa Organik Dalam Limbah Blackwater

Lies Kurniawati Wulandari, Maranatha Wijayaningtyas — Thu, 30 Apr 2026 06:40:06 +0700

Domestic wastewater treatment on a laboratory scale using an aerobic reactor. The variables studied include several variations, namely the residence time on the filter (5, 10, and 15 minutes) which is then flowed to the plant for a single time (2, 4, 6 days). The observed response is the COD concentration of domestic wastewater starting from the aerobic enfluent to determine the efficiency of COD reduction. Observations were carried out under conditions considered steady state, which in this study was one residence time. The main variable observed in this study was COD (Chemical Oxygen Demand) through a laboratory test process. The purpose of this study is to improve the quality of domestic wastewater from communal blackwater (WWTP) through filtration and continued with wetlands. With the presence of wetlands, in addition to improving the quality of wastewater, it is also expected to reduce unpleasant odors. The data analysis method used is Linear Regression with the help of the SPSS program. The results of the study showed a decrease in COD at a residence time of 15 minutes - 6 days. Chemical Oxygen Demand (COD), from the results of the study showed that the results of the relationship between observation time and COD parameters in vetiver plants showed that there was a significant influence between observation time and COD parameters with a 5 percent error rate. The time coefficient of -2,700 indicates that every 1 minute there will be a decrease in COD in vetiver plants by 2,700 mg/L.

STUDI ALTERNATIF PERENCANAAN STRUKTUR ATAS BANGUNAN GEDUNG FAKULTAS ILMU KOMPUTER UB MENGGUNAKAN SISTEM GANDA

Yanuarius Seke; vega aditama; Ester Priskasari — Tue, 30 Jun 2026 00:00:00 +0700

In this planning, the Brawijaya Computer Science Building is designed using a dual system, namely a combination of the SRPMK structural system and shear walls. The standards used as guidelines include SNI 1727-2020, SNI 1726-2019, SNI 2847-2019, and SNI 2025-2017. The data used in the calculations consists of planning drawings and soil data, which then serve as the basis for preliminary calculations of structural elements. 3D Structural Analysis was performed using ETABS 18 software, from which the column dimensions were 950 x 950 mm2, the main beams consisted of B1 400X600 B2 250 X 300 and B3 250 x 300 while the child beams consisted of BA1 350 X 600, BA2 250 X 300 and BA3 200 X 300. The floor slab thickness was 100 mm and the shear walls had dimensions of 4550 x 950 mm.

KALIBRASI ALAT UKUR DEBIT PADA MODEL SALURAN DENGAN RECHBOX (HULU) DAN THOMPSON (HILIR)

Lies Kurniawati Wulandari, Maranatha Wijayaningtyas — Thu, 25 Jun 2026 00:00:00 +0700

Measure instrument of discharge in this experiment was calibrated before the experiment took place, in order to decrease the experiment relative error smaller than 5%. Physical model of distribution box has ratio 1 : 1 in prototype and it has used verification in order to get result carefulness that fulfils the prerequisite. There are three conditions in this testing, that is one channel operations, three channels operation and three channels operation with discharge plan on two channels (right and left) and one door operation to frontal side. It using six variations discharge testing to stream flow type respectively on distribution box in order to get discharge distribution pattern. One channel has gotten the same headwaters discharge and downstream discharge. Three channels has gotten discharge coefficient (Cd) 0.56 and friction coefficient (f) 0.046, where as discharge distribution has gotten ratio 11.44%, 71.24% and 18.35% (no door). Three channels that using door has gotten discharge distribution in ratio 12.68%, 65.89%, and 21.05% (a = 4 cm, frontal) and 11.77%, 68.90% and 19.33% (a = 8 cm, frontal) on discharge plan has gotten equation on pipe one y = 0.1097 (h) ^1.4901 and on pipe three y = 0.1017 (h) ^1.566, with the result that discharge that happen is reasonable to pipe diameter, discharge variation and high variation of opening door (a)

Regulasi Maintenant Ketebalan Sedimentasi dan Analisis sebaran Kolam Retensi Rolak 70

Dr.Ir.Markhaban Siswanto,ST,.Msi,.MT,.IPM Siswanto — Fri, 26 Jun 2026 00:00:00 +0700

Sebaran sedimentasi sangat berpengaruh pada penyebaran arus. Simulasi ini dilakukan untuk mengetahui pola penyebaran sedimen yang terjadi. Hasil dari simulasi penyebaran sedimen ini adalah pola sebaran sedimen dengan kondisi saat Sungai mengalami debit puncak di tahun 2022 dan perubahan dasar Perairan. Pada simulasi transpor sedimen ini dipilih modul transpor sedimen karena di wilayah ini memiliki ukuran butir D50 dengan menghitung total load bed thickness sedimen. Sebelumnya, dilakukan pengambilan pada sepuluh titik sampel tanah dasar Sungai pada daerah studi. Diambil rata-rata nilai butiran sedimen untuk memudahkan simulasi transpor sedimen. Hasil dari simulasi moden sedimen pada penelitian ini dapat dilihat pada gambar berikut.

MANAJEMEN WAKTU PADA KONSTRUKSI RANCANG DAN BANGUN PEMBANGUNAN DI GEDUNG JANTUNG TERPADU RSUD JAYAPURA

Ihsanudin Andi Sukirno, Nusa Sebayang, Maranatha Wijayaningtyas — Fri, 26 Jun 2026 00:00:00 +0700

Pemeliharaan jaringan irigasi adalah upaya menjaga dan mengamankan jaringan irigasi agar selalu dapat berfungsi dengan baik guna memperlancar pelaksanaan operasi dan mempertahankan kelestariannya melalui kegiatan perawatan, perbaikan, pencegahan dan pengamanan yang harus dilakukan secara terus menerus. Daerah Irigasi Kaubun merupakan salah satu Daerah Irigasi kewenangan pemerintah pusat dengan luas areal baku 1.150 Ha dan areal fungsional 736 Ha yang letak areal kerjanya berada di wilayah Kabupaten Kutai Timur. Daerah Irigasi Kaubun memiliki 1 (satu) bendung, 2 (dua) saluran induk. Sementara itu Pemeliharaan jaringan irigasi belum dilakukan secara rutin dan berkala baik oleh Pemerintah Provinsi Kalimantan Timur maupun oleh Pemerintah Kabupaten Kutai Timur. Akumulasi Sedimen salah satu masalah utama dalam saluran irigasi sekunder dan dapat menyebabkan penyumbatan saluran, penurunan kapasitas aliran air, dan peningkatan kerusakan infrastruktur.

Peneltian ini dilakukan dengan mengevaluasi sistem jaringan irigasi dan melihat beberapa faktor yang mengakibatkan kerusakan saluran dengan berpedoman pada peraturan menteri pekerjaan umum dan perumahan rakyat nomor: 12/PRT/M/2015 tanggal: 6 April 2015 tentang eksploitasi dan pemeliharaan jaringan irigasi. Hasil penelitian diperoleh bahwa rekapitulasi Index Kinerja Sistem Jaringan Irigasi didapatkan nilai optimum terbesar pada aspek Prasarana Fisik dengan nilai 29,01 indeks. Sementara hasil prioritas penanganan utama menggunakan metode Analytic Hierarchy Process (AHP) yaitu pada aspek Prasarana Fisik dengan nilai sebesar 0,462 limiting, dan biaya pemeliharaan rutin maupun berkala pada jaringan daerah irigasi kaubun adalah senilai Rp. 3.753.835.675,00.