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Efisiensi Penurunan Kadar COD, TSS, dan TDS pada Air Limbah Industri Pangan menggunakan Koagulan Poly Alumunium Chloride dengan metode Jar Test Zakaria, Ahmad; Sauri, Sopian; Fadela, Dian Mira; Wardhani, Puspita Sri Ayu
WARTA AKAB Vol 45, No 2 (2021): Warta AKAB
Publisher : Politeknik AKA Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (306.256 KB) | DOI: 10.55075/wa.v45i2.60

Abstract

Industri pangan menghasilkan air limbah berbahan organik dan padatan tersuspensi maupun terlarut yang tinggi. Salah satu proses pengolahan air limbah yaitu dengan proses koagulasi-flokulasi yang bertujuan untuk menghilangkan padatan tersuspensi dan zat organik yang dapat menyebabkan kekeruhan serta bau dengan penambahan koagulan. Penambahan koagulan pada instalasi pengolahan air limbah (IPAL) tidak dilakukan secara kuantitatif, sehingga perlu dilakukan percobaan dengan metode jar test. Tujuan percobaan untuk mengetahui pH dan dosis optimum serta efisiensi koagulan poly aluminium chloride (PAC) untuk menurunkan kadar chemical oxygen demand (COD), total suspended solid (TSS), dan total dissolved solid (TDS). Hasil uji parameter COD, TSS, dan TDS dibandingkan dengan Surat Keputusan Gubernur Tingkat 1 Jawa Barat (SK Gub TK 1 Jabar) No. 6 Tahun 1999 tentang Baku Mutu Limbah Cair Bagi Kegiatan Industri di Jawa Barat. Berdasarkan hasil percobaan diperoleh kondisi optimum koagulan PAC pada pH air limbah 6–7 dengan dosis koagulan optimum pada (80–90) mg/L. Hasil pengujian parameter TS, TDS, TSS, kekeruhan dan COD berturut-turut memberikan nilai efisiensi sebesar (52,6-57,8)%, (53,9-55,5)%, (52,4-58,1)%, (97,8-99,1)%, dan (71,6–77,1)%. Percobaan yang dilakukan membuktikan bahwa koagulan PAC mampu menurunkan kadar pada parameter uji dengan nilai efisiensi yang cukup besar.
PENGELOLAAN KOLEKSI MUSEUM ZOOLOGICUM BOGORIENSE (MZB) TAHUN 2022 Mujiono, Nova; Alfiah, Alfiah; Apandi, Apandi; Darmawan, Darmawan; Fatimah, Fatimah; Wikanta, Hadi; Haerul, Haerul; Kurnianingsih, Kurnianingsih; Wahyudin, Mohamad; Mulyadi, Mulyadi; Supriatna, Nanang; Santoso, Pramono Hery; Prihandini, Riena; Rachmatiyah, Rina; Sarino, Sarino; Sauri, Sopian; Suparno, Suparno; Nurhaman, Ujang; Sofyani, Umar; Trilaksono, Wahyu; Priyatna, Yayat
Berita Biologi Vol 23 No 1 (2024): Berita Biologi
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/beritabiologi.2024.892

Abstract

Since the integration of LIPI into BRIN in 2021, the Museum Zoologicum Bogoriense (MZB), which is managed by the coordinator of the zoological collection assisted by 20 collection technician staffs, has been transferred to the Directorate of Scientific Collections Management. The process of integration and management transfer does not change the main duties and functions of MZB as the national depository for zoological specimen collections. In addition to managing collections, researchers frequently ask MZB staff for assistance during field research and teaching collection management courses to students, teaching staff, and regional museum directors. The management of the MZB collection is described in a scientific publication for the first time. We hope that this documentation will continue so that museum management science can advance and assist the scientific community, particularly in Indonesia.
IDENTIFIKASI IKAN LEPU BATU GENUS Synanceia (Perciformes: Synanceiidae) KOLEKSI MUSEUM ZOOLOGICUM BOGORIENSE Fikri, Zulfatul; Ilham, Kurniadi; Sauri, Sopian; Priyatna, Yayat; Wibowo , Kunto
Berita Biologi Vol 24 No 2 (2025): Berita Biologi
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/berita_biologi.2025.8943

Abstract

Ikan lepu batu genus Synanceia adalah kelompok ikan berbisa yang umum dijumpai di perairan tropis Indo-Pasifik. Tujuan penelitian ini adalah untuk melakukan identifikasi berdasarkan karakter morfologi pada spesimen ikan lepu batu genus Synanceia koleksi Museum Zoologicum Bogoriense. Karakter morfologi yang meliputi karakter meristik dan morfometrik dari 22 spesimen diperiksa dengan teliti. Hasil penelitian menunjukkan adanya dua spesies yang teridentifikasi, yaitu Synanceia horrida dan Synanceia verrucosa. Kedua spesies ini dapat dibedakan berdasarkan beberapa karakter, seperti jumlah jari-jari sirip dada, kondisi tulang di atas mata, kondisi membran di antara duri kedua dan ketiga sirip dorsal, panjang duri sirip dubur, dan diameter orbit. Informasi mengenai kandungan bisa dari ikan lepu batu dibahas dalam artikel ini.
The Influence of the Blended Learning Model on Fifth-Grade Students’ Motivation in Physical Education at SD Aisyiyah Sukabumi Lau, Bachtiar; Sauri, Sopian; Saleh, Muhammad; Nugraheni, Wening; Tuti Lestari, Ade
IJORER : International Journal of Recent Educational Research Vol. 6 No. 6 (2025): November
Publisher : Faculty of Teacher Training and Education Muhammadiyah University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46245/ijorer.v6i6.1146

Abstract

Objective :This study aims to examine the effect of the blended learning model on learning motivation in physical education for fifth-grade students at SD Aisyiyah, Sukabumi. Method: The research employed a quantitative pre-experimental design using a One-Group Pretest-Posttest Design. The population consisted of all fifth-grade students, and a sample of 21 students was selected using cluster random sampling within a probability sampling framework. The data were analyzed using descriptive statistics and a paired-sample t-test. The collected data were analyzed using descriptive statistics and a paired sample t-test. Results: The analysis demonstrated an increase in student learning motivation after the implementation of blended learning. The pretest produced a mean score of 27.04 (SD=9.255), while the posttest mean score increased to 38.00 (SD=3.619). The paired-sample t-test yielded a significance value of 0.000 (<0.05), that the blended learning model had a significant effect on students’ learning motivation. Novelty: This study contributes to the existing literature on blended learning by emphasizing its effectiveness in enhancing motivation in physical education, an area that often receives less attention compared to academic subjects. The findings offer empirical evidence that blended learning can be a valuable approach in elementary school to promote students’ engagement and motivation in physical activity learning.