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All Journal Math Educa Journal Jurnal Optimalisasi Jurnal Bisnis Dan Kajian Strategi Manajemen Jurnal Teknologi Informasi
Cukri Rahmi Niani
Universitas Teuku Umar
Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Industrial & Manufacturing Engineering Mathematics

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Journal : Jurnal Optimalisasi

 1 
Penggunaan Tawas (Al2(SO4)3) dalam Menurunkan Kadar Total Suspended Solid Air Limbah Batubara Rahma, Cukri; Niani, Cukri Rahmi
Jurnal Optimalisasi Vol 7, No 1 (2021): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v7i1.2562

Abstract

Wastewater is one of the byproducts produced by coal mining companies. The wastewater contains suspended particles as well as heavy metals. Various attempts have been made to treat wastewater before it is discharged into the environment. This is done so that the waste water does not damage the environment. One way to do this is to settle suspended particles in wastewater or what is known as TSS (Total Suspended solite) using the coagulation-flocculation method. The coagulant used in this study is alum Al2 (SO4) 3. This research was conducted to determine the optimum dose or level of addition of alum into wastewater. The addition of alum is carried out in different doses, this is adjusted to the volume and discharge of waste water that is flowed to the WMP (Water Monitoring Point). The optimum dose of adding or using alum Al2 (SO4) 3 into WPM is 0.03 g / L for WMP 11, and 0.05 g/L for WMP 13.
ESTIMASI KEPADATAN ULAT API MELALUI METODE SAMPLING JARAK Cukri Rahmi Niani
Jurnal Optimalisasi Vol 3, No 4 (2017): Jurnal Optimalisasi
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (551.547 KB) | DOI: 10.35308/jopt.v3i4.270

Abstract

Many types of pests which is found in oil palm plantations such as rats, bees and the caterpillars. Caterpillar and the bagworm, including a caterpillar eaters leaves oil palm plantations. This Research focuses on a caterpillar type Setora nitens at oil palm plantations Karya Tanah Subur in West Aceh. Many ways that has been done to overcome pests caterpillar in oil palm plantations from early monitoring and extermination caterpillar. To know the density caterpillar can be done by counting directly individual caterpillar or with other methods that in this research, the density caterpillar in the estimation through distance sampling techniques. Distance sampling is one of the methods used to estimate the density and the spread population. The sampling distance, a series point or lines are placed randomly on the districts census and measured the distance between individuals who were detected in handcuffs or this point. Ordered Distance, Point Quarter and Variable Area Transect the distance sampling method that used in the research. Based on the explanation, an extensive microinsurance is focused on the estimation density caterpillar using the distance sampling methods.Keywords: Setora nitens, Distance Sampling, Order Distance, Point Quarter, VariableArea Transect.
OPTIMALISASI PRODUKSI TANAMAN TERUNG DENGAN PEMANFAATAN MULSA ORGANIK Villa Afria sari; Rita Hartati; cukri rahmi niani
Jurnal Optimalisasi Vol 5, No 1 (2019): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v5i1.1322

Abstract

This study to determine the use of organic mulch on eggplant production. This research was carried out in the garden of kemumu Hilir Village, Labuhan Haji Timur Disrtict,South aceh Regency. The design used was RAK with the treatment of organic mulch iesugarcane bagasse, rice straw mulch and reeds. The result showe that best eggplant production was found in the treatment of straw mulch, namely the number of fruits (1,506 pieces), fruit length (18,814cm) and the average weight per fruit (112,763gram).
Co-Authors Abdurrahman Ridho Rahma, Cukri Rita Hartati Rusma Setiyana Villa Afria sari