scholarly journals EFISIENSI METODE DEEP FLOW TECHNIQUE UNTUK MENURUNKAN BOD, COD DAN TSS PADA LIMBAH CAIR DOMESTIK MENGGUNAKAN TUMBUHAN KAYU APU DAN KANGKUNG AIR

2021 ◽  
Vol 13 (1) ◽  
pp. 37-43
Author(s):  
Raka Rulistyanto Prakoso Putra ◽  
Okik Hendriyanto Cahyonugroho

Di indonesia, terdapat berbagai pencemar lingkungan, salah satunya berasal dari aktifitas rumah tangga. Maka dari itu, muncul berbagai ide dalam penanganan lingkungan yang tercemar. Salah satunya menggunakan metode  fitoremediasi. Dalam penelitian ini menggunakan tumbuhan kayu apu (pistia stratiotest l) dan kangkung air (ipomea aquatica) yang ditanam menggunakan sistem hidroponik. Dalam hidroponik terdapat dua sistem, yaitu sistem DFT (deep flow technique) dan NFT (nutrient film technique). Pada penelitian ini menggunakan dua macam sistem, dengan penambahan aerasi dan tanpa aerasi, dengan variasi jarak antar tumbuhan 5cm, 10cm dan 15cm dan menggunakan dua jenis tumbuhan, yaitu kangkung air dan kayu apu. Lama penelitian yang dilakukan 15 hari, 7 hari pertama aklimatisasi dan 8 hari terakhir penelitian utama. Hasil penelitian menunjukan bahwa perlakuan paling optimal terdapat pada tumbuhan kayu apu dengan jarak antar tumbuhan 5cm, dengan penambahan aerasi dan menggunakan sistem DFT mencapai BOD 58,41%, COD 32,36% dan TSS 62%.  

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Abd Chalim Asnawi ◽  
Saimul Laili ◽  
Tintrim Rahayu

Hydroponics is agricultural cultivation without using soil media, where the media can be replaced with husk charcoal or cocopeat media. However, hydroponics is actually the use of nutrients in a solution so that the nutritional needs of the plant are as desired. Accordingly, plant growth can be maximized. The use of media other than soil does not inhibit plant growth because both charcoal husk and cocopeat can store nutrients so that plant growth is not disturbed. This study aims to determine the response of red spinach (Alternanthera amoena Voss.) to Cocopeat and husk charcoal, and also to determine the use of DFT (Deep Flow Technique) and NFT (Nutrient Film Technique) hydroponic systems on the growth and development of red spinach. The method used was RBD where Rockwool media as a control, with 6 treatments and 4 replications. From the research results, the cocopeat media and husk charcoal media gave different results where the cocopeat growing medium was greater than the husk charcoal growing medium and the DFT and NFT systems gave significantly different results where the NFT yield was greater than DFT.Keywords: Hydroponics, Red Spinach, Cocopeat, Husk Charcoal, DFT, NFTABSTRAKHidroponik adalah lahan budidaya pertanian tanpa menggunakan media tanah, dimana media dapat digantikan dengan media arang sekam ataupun cocopeat. namun hidroponik sesungguhnya yakni penggunaan nutrisi dalam larutan sehingga kebutuhan nutrisi pada tanaman sesuai keinginan. Maka pertumbuhan tanaman bisa lebih maksimal. penggunaan media selain tanah tidak menghambat pertumbuhan tanaman karena baik media arang sekam maupun cocopeat dapat menyimpan unsur hara sehingga pertumbuhan tanaman tidak terganggu. Penelitian ini bertujuan untuk mengetahui respon pada tanaman bayam merah (Alternanthera amoena Voss.) terhadap media tanam Cocopeat, dan Arang sekam, dan juga untuk mengetahui penggunaan sistem hidroponik DFT (Deep Flow Technique) dan NFT (Nutrient Film Technique) terhadap pertumbuhan dan perkembangan bayam merah. Metode yang digunakan adalah RAK dimana media rockwool sebagai kontrol, dengan 6 perlakuan dan 4 ulangan. Dari hasil penelitian Media tanam cocopeat dan media arang sekam memberikan hasil yang berbeda dimana media tanam cocopeat lebih besar dari pada media tanam arang sekam dan pada sistem DFT dan NFT memberikan hasil yang berbeda nyata dimana hasil NFT lebih besar dari pada DFT.Kata kunci : Hidroponik, Bayam Merah, Cocopeat, Arang sekam, DFT, NFT


2007 ◽  
Vol 25 (1) ◽  
pp. 82-87 ◽  
Author(s):  
Thiago L Factor ◽  
Jairo AC de Araujo ◽  
Felipe PC Kawakami ◽  
Viviane Iunck

O presente trabalho teve como objetivo avaliar a produção de minitubérculos básicos de batata em três sistemas hidropônicos de cultivo: aeropônico, DFT (deep flow technique) e NFT (nutrient film technique). O experimento foi realizado em ambiente protegido, de maio a setembro de 2005, em Jaboticabal, SP. Adotou-se o delineamento experimental em blocos casualizados com parcelas subdivididas, sendo os três sistemas hidropônicos de cultivo as parcelas principais e, as cultivares Agata e Monalisa, as subparcelas. A massa fresca e o diâmetro longitudinal dos tubérculos não foram influenciados pelos sistemas hidropônicos estudados, com valores médios de 6,2 e 30,2 mm, 6,3 g e 30,0 mm, 6,8 g e 31,0 mm, para os sistemas hidropônicos NFT, DFT e aeroponia, respectivamente. No que se refere às cultivares, Monalisa apresentou maior diâmetro longitudinal e massa fresca (32,2 mm e 7,1 g), valores significativamente superiores aos verificados para a cultivar Agata (28,6 mm e 5,8 g). O número de minitubérculos por planta e por metro quadrado teve valores médios significativamente superiores no sistema aeropônico (49,3 e 874,4) em relação aos sistemas NFT (39,5 e 246,6) e DFT (41,6 e 458,0), respectivamente. A produção de minitubérculos básicos de batata pode ser realizada de maneira eficiente utilizando-se os sistemas hidropônicos estudados, sendo o sistema aeropônico o que apresentou os melhores resultados.


2019 ◽  
Vol 1 (2) ◽  
pp. 147-161
Author(s):  
Teguh Iman Santoso ◽  
Karto Karto

Tujuan dari kegiatan pengembangan  Kawasan Rumah Pangan Lestari (KRPL)  adalah memberdayakan rumah tangga dan masyarakat dalam penyediaan sumber pangan dan gizi melalui optimalisasi pemanfaatan pekarangan dan lahan sekitar tempat tinggal; meningkatkan kesadaran, peran, dan partisipasi masyarakat dalam mewujudkan pola konsumsi pangan yang beragam, bergizi seimbang dan aman. Upaya yang dilakukan adalah dengan mengembangkan kawasan Rumah Pangan Lestari (KRPL) di lingkungan rumah.  Salah satu kegiatan dari kegiatan yang dilakukan dalam rangka mengembangkan  KRPL adalah kegiatan pelatihan pengembangan budidaya sayuran dengan sistem hidroponik. Pelatihan dan pengembangan dudidaya tanaman dengan sistem hidroponik yang telah dilaksanakan oleh pengurus Bhayangkara Cabang Indramayu bekerjasama dengan Fakultas Pertanian Universitas Wiralodra. Setelah dilakukan pelatihan, peserta pelatihan memahami dan mempunyai keterampilan dalam membudidayakan sayuran dengan sistem hidroponik dengan berbagai metode yaitu wick system, NFT Sistem (Nutrient Film Technique) dan DFT Sistem (Deep Flow Technique); setelah dilakukan pelatihan memahami penanganan sayuran setelah panen dan memahami memahami bagaimana strategi yang harus dilakuakan dalam memasaran sayuran sistem hidroponik.


Author(s):  
Lynette Morgan

Abstract This paper discusses about the solution culture or 'hydroculture' systems, which are methods of crop production which do not employ the use of substrates to contain the root system and hold moisture between irrigations. It includes NFT or the nutrient film technique, deep water culture/deep flow technique - float, raft or pond systems, aeroponics, aquaponics, organic solution culture, hydroponic fodder systems, and automation for solution culture systems.


Author(s):  
Lynette Morgan

Abstract This paper discusses about the solution culture or 'hydroculture' systems, which are methods of crop production which do not employ the use of substrates to contain the root system and hold moisture between irrigations. It includes NFT or the nutrient film technique, deep water culture/deep flow technique - float, raft or pond systems, aeroponics, aquaponics, organic solution culture, hydroponic fodder systems, and automation for solution culture systems.


2015 ◽  
Vol 25 (5) ◽  
pp. 645-650 ◽  
Author(s):  
Kellie J. Walters ◽  
Christopher J. Currey

Basil (Ocimum sp.) is the most popular fresh culinary herb. However, there is a lack of data characterizing the effect of hydroponic production systems and cultivars on the yield of hydroponically produced basil. Our objectives were to quantify productivity and characterize growth of basil cultivars grown in two hydroponic production systems. Thirty-five basil cultivars, including selections of sweet basil (O. basilicum), holy basil (O. tenuiflorum), and lemon basil (O. ×citriodorum and O. basilicum) were chosen. Seedlings were transplanted into nutrient film technique (NFT) or deep flow technique (DFT) systems and grown for 3 weeks. There was no interaction between basil cultivars and hydroponic production system. Fresh weight of plants grown in DFT systems was 2.6 g greater compared with plants grown in NFT systems. Basil cultivars differed greatly in fresh weight. In general, holy, lemon, and sweet basil cultivars produce moderate to high fresh weight, but vary greatly. Dissimilarly, bush (O. basilicum var. minimum), cinnamon (O. basilicum), large-leaf (O. basilicum), and thai basils (O. basilicum var. thyrisiflorum) produce moderate fresh weight and purple basil (O. basilicum) cultivars produce the least fresh weight. The yield of basil seems to be affected more by cultivar selection than hydroponic production system. Therefore, hydroponic basil producers should select basil cultivars based on flavor and yield, while hydroponic systems should be selected based on operational preferences.


HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 459d-459
Author(s):  
Fumiomi Takeda ◽  
Paul R. Adler ◽  
D. Michael Glenn

Strawberry plants (cvs. Camarosa, Chandler, Sweet Charlie, Primetime, Jewel, and Tribute) were grown in soilless culture systems in a greenhouse from October to May. Fresh-dug and runner-tip Aplug® plants were transplanted into two systems: vertically stacked pots (24 plants/m2) containing perlite and horizontal nutrient film technique troughs (13 plants/m2). Plants were fertigated continuously with recirculating nutrient solution. In a 7-month production cycle, the plug plants bloomed earlier and produced more fruit during the first month of harvest (December) than the fresh-dug plants. Higher yields from plug plants were a result of more fruit numbers and not larger fruit size. Fruit production averaged 6.0 and 3.5 kg/m2 in the trough and pot systems, respectively. The vertical growing system allows greater plant densities, but light intensity reaching the plants in the lower sections of the tower can be less than 20% of levels measured at the top. Establishment costs of protected culture systems are higher, but production is earlier and labor costs are typically reduced. Greenhouse hydroponic culture systems could extend the winter strawberry production to more northern locations.


Author(s):  
Herman Herman ◽  
Demi Adidrana ◽  
Nico Surantha ◽  
Suharjito Suharjito

The human population significantly increases in crowded urban areas. It causes a reduction of available farming land. Therefore, a landless planting method is needed to supply the food for society. Hydroponics is one of the solutions for gardening methods without using soil. It uses nutrient-enriched mineral water as a nutrition solution for plant growth. Traditionally, hydroponic farming is conducted manually by monitoring the nutrition such as acidity or basicity (pH), the value of Total Dissolved Solids (TDS), Electrical Conductivity (EC), and nutrient temperature. In this research, the researchers propose a system that measures pH, TDS, and nutrient temperature values in the Nutrient Film Technique (NFT) technique using a couple of sensors. The researchers use lettuce as an object of experiment and apply the k-Nearest Neighbor (k-NN) algorithm to predict the classification of nutrient conditions. The result of prediction is used to provide a command to the microcontroller to turn on or off the nutrition controller actuators simultaneously at a time. The experiment result shows that the proposed k-NN algorithm achieves 93.3% accuracy when it is k = 5.


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