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KOMPOSISI DAN KEANEKARAGAMAN SERANGGA TANAH DI ARBORETUM UNIVERSITAS RIAU SEBAGAI SUMBER BELAJAR MELALUI MODEL INKUIRI Suwondo ' '; Elya Febrita '; Andri Hendrizal '
Biogenesis Vol 11, No 2 (2015)
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (210.713 KB) | DOI: 10.31258/biogenesis.11.2.93-98

Abstract

This research aims to determine the composition and diversity of soil insect in Riau University Arboretum, and obtains an alternative learning source. The method of this research is survey. Locations were selected based on purposive random sampling considering 3 habitat types. The parameters used in this study is the composition and diversity of soil insect. Physical and chemical parameters measured were soil temperature, pH, water content and organic matter content. The data obtained are presented in tables and graphs then analyzed descriptively to be associated with the learning set of material. Based on the research that has been conducted, there are differences in the composition of soil insects at each research station. Of the three stations, there were obtained 5 orders and 12 species. Order were found which is consist of Hymenoptera, Collembola, Orthoptera, Coleoptera and Diptera. At the first station, found as many as 494 individual. At the second station, there was found as many as 217 insects and found 271 insects in stations III. The diversity of soil insect is classified as moderate with scale 1-3. The results can be used to develop inquiry-based learning animal diversity in the form of Student Work Sheet.Keywords : Composition, Diversity, Learning Inquiry, Soil Insect
DEGRADASI LIMBAH CAIR KELAPA SAWIT DENGAN PENAMBAHAN BAKTERI RIZOSFIR Actinomycetes DAN TANAMAN Typha angustifolia DENGAN MODEL CONSTRUCTED TREATMENT WETLAND (CTW) Suwondo ' '; Sri Wulandari '; Syaiful Ansha '
Biogenesis Vol 11, No 1 (2014)
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (252.47 KB) | DOI: 10.31258/biogenesis.11.1.55-60

Abstract

Conducted a research to find the effectiveness of rhizosphere Actinomycetes bacteriaand Typha angustifolia plant addition to degrade palm oil liquid waste. Researchdesign using Constructed Treatment Wetlands models (CTW). The Parametersmeasured is the content of Chemical Oxygen Demand (COD), Biological OxygenDemand (BOD), Total Suspended Solid (TSS), the detention time, pH andtemperature. The results of this research showed that the Actinomycetes is a potentialmicrobe in degrading liquid waste. The use of Constructed Treatment Wetland (CTW)model is effective in degrading palm oil liquid waste with average content become432 mg/L for COD, 10 mg/L for BOD and 40 mg/L for TSS before it throws away tothe environment. The longer the detention time the content of COD and BOD will bereduced to 252 mg/L for COD and 23 mg/L for BOD.Keywords: Palm Oil liquid waste, Actinomycetes, Typha angustifolia, COD, BOD,TSS, CTW