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All Journal Briliant: Jurnal Riset dan Konseptual Jurnal Kesehatan Terapan
Dani Prasetyo
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Health Professions

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Simulasi dan Evaluasi Limpasan Saat Debit Maksimum Kanal Banjir Timur Kota Semarang Prasetyo Budi Cahyono; Slamet Imam Wahyudi; Mohammad Faiqun Niam; Dani Prasetyo
BRILIANT: Jurnal Riset dan Konseptual Vol 7, No 2 (2022): Volume 7 Nomor 2, Mei 2022
Publisher : Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (439.135 KB) | DOI: 10.28926/briliant.v7i2.963

Abstract

Penelitian ini bertujuan menganalisis data hidrologi dan limpasan saat Debit Maksimum (Q50, Q100) di alur sungai, kemudian diimplementasikan pada pekerjaan normalisasi Kanal Banjir Timur Semarang. Penelitian berupa simulasi yang dievaluasi dengan pengamatan dan pencatatan besaran tingkat elevasi banjir yang terjadi pada saat debit banjir maksimum di Q50 dan Q100 terhadap tingkat limpasan air yang melewati top elevasi parapet. Metode peneltian yang dilakukan adalah studi kasus dengan analisa kuantitatif terhadap semua data yang ada mulai dari data topografi, hidrologi dan geoteknik mekanika tanah. Penelitian diawali analisa curah hujan hingga didapat debit banjir maksimum dari Polygon Theiseen Data Curah hujan 3 stasiun yang mencakup DAS Kanal Banjir Timur diarah hulu. Langkah selanjutnya dilakukan analisa cross section sungai dengan mengambil titik sample lokasi penelitian yang dimulai dari Jembatan Kartini Semarang sampai kearah muara sungai. Data pengukuran existing yang ada kemudian diinput dan diolah dengan analisa program hec-ras. Dari urutan Log Pearson Type III dan kalibrasi pendekatan data BBWS Pemali Juana diperoleh angka Debit Maksimum 418,17 m3/det, (Q50) 462,52 m3/detik, (Q100) debit andalan sebesar 0,39 m3/s.  Catchment Area = 310 km2 = 63.725,87 m3/tahun; Luas hidrolis (A) sebelum normalisasi 45m2 dan sesudah normalisasi 112m2, sehingga didapat luas penampang sungai yang lebih besar; dimana luas penampang ini berbanding lurus dengan penurunan top elevasi pada saat debit maksimum dialur sungai. Elevasi Q50 sebelum normalisasi +4,4m (melimpas) dan setelah normalisasi +3,54m. Sedang Q100 sebelum normalisasi +4,84; setelah normalisasi +3,89m sehingga bisa tertahan oleh dinding parapet di top elevasi +4,4m dan tidak terjadi limpasan.
Formulasi dan Uji Aktivitas Antibakteri Sediaan Spray Antiseptik Tangan Non Alkohol Infusa Daun Kemangi (Ocimum basilicum L.) dan Lidah Buaya (Aloe Vera (L.) Burm.f.) Terhadap Bakteri Staphylococcus aureus ATCC 25923 Eriska Agustin; Dani Prasetyo; Muni’ah Muchtar
JURNAL KESEHATAN TERAPAN Vol 9 No 1 (2022): Jurnal Kesehatan Terapan
Publisher : LPPM Universitas Kader Bangsa Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (318.582 KB) | DOI: 10.54816/jk.v9i1.494

Abstract

The rapid spread of the Covid-19 virus has caused the WHO to declare the Covid-19 outbreak a global pandemic. However, public awareness of the importance of maintaining hand hygiene is still very low. The use of hand sanitizers is now increasingly widespread. Basil leaves and aloe vera have the potential to be developed as hand antiseptics because they contain secondary metabolites such as flavonoids, alkaloids, saponins and tannins. This study aims to formulate a non-alcoholic hand antiseptic spray preparation of basil and aloe vera infusion and whether it has antibacterial activity against Staphylococcus aureus ATCC 25923. Formulation of hand antiseptic spray preparation use various extract concentrations, namely F1 (20%), F2 (40%), F3 (60%), F4 (80%), and (F5 100%). Testing of antibacterial activity by agar diffusion method measuring the diameter of the inhibition zone of Staphylococcus aureus bacteria. From the results of the study, it was found that the five non-alcoholic hand antiseptic spray formulations infusion of basil and aloe vera leaves were in liquid form, had striking colors, had the same odor and were stabel for 14 days. The preparation looks homogeneous when applied to a glass object. The pH produced from this hand antiseptic spray preparation ranged from 4.5 to 6.5. The results of the antibacterial activity test showed that the inhibition of Staphylococcus aureus bacteria at F3 (60%) was 5.14 mm, F4 (80%) was 6.24 mm, and F5 (100%) was 7.26 mm which was classified as medium strength. Keywords: aloe vera, antiseptic spray, infusion, kemangi basil, Staphylococcus aureus
Co-Authors ERISKA AGUSTIN Muni’ah Muchtar Prasetyo Budi Cahyono S Imam Wahyudi