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Sharah Dina
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Agriculture, Biological Sciences & Forestry Other

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PENGARUH LIMBAH CAIR INDUSTRI TAHU TERHADAP KUALITAS AIR SUNGAI BABURA KECAMATAN MEDAN POLONIA (The Disposal Effect of The Waste Water of Tofu Factory to Water Quality Of The Babura River Medan Polonia District) Sharah Dina; Ternala Alexander Barus; Maragunung Dalimunthe
AQUACOASTMARINE Vol 2, No 3 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 3, DESEMBER 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (224.755 KB)

Abstract

Babura River is one of the three river in Medan.Where this river is already contaminated which is caused by the plastic product disposal, disposal of household waste that flowed trough the trenches, and also the disposal of the waste water of the tofu industry. The purpose of this research is to know more regarding how far the effect of the disposal of the waste water of the tofu industry to the quality of Babura River. This research was conducted in August until September 2013 with determining 3 stations. Which every stations divided into three point for water sampling which is taken 100 m from every station. The physic and chemical parameter that is taken for observed are temperature, brightness of the water, Colour, Turbidity, TSS,TDS,DO, BOD, COD, Nitrate, Phosphate and pH.Based on the result of the research using the storet methode we got total score of the each stations in the amount of -29 in the station 1, -22 in the station 2 and -30 in the stations 3 based on the result we can conclude that the contaminations level from the three stations is categorized as c class contaminations which is contaminated with score -11 up to -30.Keywords: Babura river, Storet methods, waste water from tofu industry
FABRICATION OF STYROFOAM FIBERS FOR SOILLESS GROWING MEDIA Fauzi, Ahmad; Dina, Sharah
Agro Estate Vol 9 No 1 (2025): Juni 2025
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jae.v9i1.315

Abstract

The growing interest in urban farming has led to an increased use of non-soil planting media. With land becoming increasingly scarce and expensive, alternative media are being explored for plant cultivation. In parallel, urban waste, particularly styrofoam waste, has emerged as a major issue that demands effective solutions. This paper reports on a continuation of our previous research concerning the development of growing media using styrofoam fibers. Styrofoam waste was collected, cleaned, and processed into fibers using a Rotary Forcespinning apparatus. The resulting fibers were white, durable, long, and had an average diameter of 8 mm. The fibers formed clumps with inter-fiber porosity, and when accumulated in volume, they could be applied as a non-soil planting medium. To be considered a viable planting medium, the styrofoam fiber must be evaluated across several performance parameters, one of which is wettability. Results showed that the water absorption performance of styrofoam fiber was lower compared to that of rockwool and PET fiber media. Future research will focus on improving the water absorption capacity of the styrofoam fiber
Co-Authors Fauzi Ahmad Muda MARAGUNUNG DALIMUNTHE Ternala Alexander Barus