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Efektivitas Kombinasi Lumpur Aktif dan Natrium Bikarbonat (NaHCO3) dalam Pengelolaan Limbah Cair Industri Tebu (Saccharum officinarum L.) Refky Sanjaya; Rijadi Subiantoro; Dedi Supriyatdi
Jurnal Agro Industri Perkebunan Volume 5 No. 1, Mei 2017
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.25181/aip.v5i1.650

Abstract

In the sugarcane processing into sugar, it will produce g. About 52,9% of liquias, solid, and luquid waste. About 52,9% of liquid waste cause many problems. If the liquid waste directly discharged into the waters, it will cause pollution of water bodies, as well as air pollution around the river. The objective of this study is to obtain the effective and duration activity of the combination of active sludge and sodium bicarbonate in reducing the sugarcane industry of liquid waste. In this research, liquid waste management is done by aerobicized batch system stagnant in laboratory scale with the descriptive analysis. Biodegradation treatment is given to the liquid waste derived from anaerobic ponds in Bunga Mayang Sugar Mill, North Lampung. The treatment is L0 = without treatment (control), L1 = without sludge + 5 g.l-1 sodium bicarbonate, L2 = 100 ml.l-1 active sludge + 5 g.l-1 sodium bicarbonate. The result showed that application of 100 ml.l-1 active sludge + 5 g.l-1 sodium bicarbonate can increase the pH to 7,85, increase DO to 0,16 mg.l-1, reduce COD to 48,18%, increase sulfide content to 90,44%, increase turbidity to 95,4%, increase the wastewater temperature to 35oC, and the time required is shorter than the conventional anaerobic pools.   Keywords: active sludge, liqud waste, sodium bicarbonatePermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/650
Pengaruh Lama Penyimpanan dan Konsentrasi Aplikasi Ekstrak Biji Mahoni Hasil Fermentasi terhadap Efektivitasnya Hamdani Hamdani; Dedi Supriyatdi
Jurnal Agro Industri Perkebunan Volume 5 No. 1, Mei 2017
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.25181/aip.v5i1.652

Abstract

Armyworm (Spodoptera litura F.) as a polyfagous insect is a key pest of either food crops or estate crops. The larva often attack leaves of beans, cereal, shallot, cabbage, cotton, tobacco, and sugarcane. Synthetic insecticides are usually used 2 – 3 times a week in order to manage this insect. The use of synthetic insecticides need high cost, have negative impacts such as insect resistance and resurgence, killing non-target insects, residual effects on yield, and environmental contamination and pollution. Botanical insecticide has a highly potential to be used in IPM because of its characteristics (no residual effect, cheap, easy to get and easy to apply). Mahogany seeds contain alkaloid, saponin, and flavonoid that have good insecticide activity. Extract of mahogany seeds can be used as insecticide, anti-feedant, growth retardant, and fertile retardant. The effectivity of mahogany seed extracts is affected by storage time and its concentration. The results of the experiment are the extract of mahogany seeds can be stored up to 3 weeks, and the highest effective is reached by the concentration of 20%, followed by 10% - 15% concentration as moderately effective.   Keywords: botanical insecticides, extract, mahogany seedPermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/652
Adaptation of Tea Seeds (Camellia Sinensis L.) Lowland Based on Physiological Characteristics and Growth at Suboptimal Temperatures Adryade Reshi Gusta; Mirodi Syofian; Dedi Supriyatdi
Jurnal Penelitian Pertanian Terapan Vol 18 No 1 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i1.1228

Abstract

This study aims to determine the best clone species and the best dosage of Salvinia natans compost on the growth and physiological character of lowland tea. This study aims to determine the best types of clones and dosage of Salvinia natans compost for growth and physiological character of lowland tea. This study used a randomized block design experiment with three replications arranged in factorial 2x4. The first factor is a type of clones consists of two (2) levels, namely: Gambung 6 (G1) and Gambung 7 (G2). The second factor is the dosage of Salvinia natans compost with topsoil 100% (K0), topsoil and Salvinia natans compost comparison by1: 1(K1), topsoil and Salvinia natans compost comparison by2: 1(K2), dan topsoil and Salvinia natans compost comparison by3: 1(K3). All data were analyzed for the variance. Analysis followed by separation of means using LSD test with significance level of 5%. The results showed that the clones of Gambung 7 showed the higher value for observation variability in higher growth of seedlings (40,75) and better dry weight(10,78 g). Topsoil planting medium comparison by Salvinia natans compost (1: 1) showed the higher value for observation variability in higher growth of seedlings (42,25) and better dry weight (10,95 g). So, the conclusion is Gambung 7 for the best clone species on the growth and physiological character of lowland tea. The best dosage of Salvinia natans compost on the growth and physiological character of lowland tea is topsoil planting medium comparison by Salvinia natans compost (1: 1).
Co-Authors Adryade Reshi Gusta Hamdani Hamdani Mirodi Syofian Refky Sanjaya Rijadi Subiantoro