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Kasam Kasam
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Environmental Science

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PEMANFAATAN LIMBAH KATALIS RCC-15 PERTAMINA UP VI SEBAGAI GENTENG BETON Kasam Kasam
Purifikasi Vol 6 No 2 (2005): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v6.i2.281

Abstract

Waste management in particular catalyst waste of oil cracking industry has been many proposed by land disposal, but waste management by all at once reuse still be increased. This research are laboratory scale and application activity by make concrete roof-tile. The concrete roof-tile materials are used portland cement, fine coarse (sand), mill, and catalyst waste. The using of catalyst asadditif materials with compotition 0 %, 10%, 20 %, 30%, 40 %, 60 %, 80 %, and 50 %. The result of testing shown bending strength at 10 %, 20%, and 30% of catalyst waste are more than the normal concrete roof-tile ( 0% waste). That are 1,20, 12,33, and 11,00 kg/cm2 for10%, 20 %, 30%, % waste at the time that bending strength of normal concrete roof-tile is 10.97 kg/cm2. Testing of permebility shown that all of the sample are impermeable of water. The leaching experiment of heavy metal Cr, Pb, Zn, Ni and Cu on monolite matrix (concrete roof) by Toxicity Characteristic Leaching Procedure (TCLP) shows that the leaching of heavy metal is under standard. The greater leaching is Ni, that is 1,179 mg/L for 50% proportion of waste.
MACRONUTRIENT CONTENT OF DRY LEAVES COMPOST BY VERMICOMPOSTING METHOD Kasam Kasam; Fajri Mulya Iresha; Alhamdy Adytama; Abdul Mutolib; Rofiqul Umam; Felga Zulfia Rasdiana; Ali Rahmat
Andalasian International Journal of Agriculture and Natural Sciences (AIJANS) Vol. 1 No. 01 (2020)
Publisher : Lembaga Penelitian dan Pengabdian, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.082 KB) | DOI: 10.25077/aijans.v1.i01.1-8.2020

Abstract

Waste management is one of the criteria for the evaluation of Green campus and sustainable university. Organic waste takes place in concern because of the domination of waste in university, such as food waste and dry leaves waste. Mismanagement in dry leaves will promote the campus area to look dirty. One method to control the dry leaves waste is the vermicomposting process. The purpose of this research is to evaluate the macronutrient content of dry leaves compost after the vermicomposting process. The research was conducted in the Faculty of Civil engineering and Planning, Universitas Islam Indonesia, Yogyakarta. The vermicompost sample in this study refers to the quality standards according to SNI 19-7030-2004 regarding compost quality standards. The results of vermicompost content value are obtained on day 56 is Phosphor amounting to 0.194%, amounting to 0.129% Potassium, and C / N ratio of 7.73. From the data that has been obtained can be concluded that the results of vermicompost are less effective as organic compost compared to the standards.
Co-Authors Abdul Mutolib Alhamdy Adytama Ali Rahmat Felga Zulfia Rasdiana Iresha, Fajri Mulya Rofiqul Umam