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All Journal AGRIPEAT Acta Chimica Asiana
Prasetya, Prasetya
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Engineering

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PEMANFAATAN SOLID KELAPA SAWIT DAN SP-36 UNTUK MENINGKATKAN PERTUMBUHAN DAN HASIL CABAI RAWIT (Capsicum frutescens L.) PADA SPODOSOLS: Utilization of Soil Palm Oil and SP-36 to Increase Growth and Yield of Cayenne pepper (Capsicum frutescens L.) on Spodosols Asie, Erina Riak; Prasetya, Prasetya
AgriPeat Vol. 24 No. 1 (2023): JURNAL AGRIPEAT
Publisher : Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/agp.v24i1.5410

Abstract

This study was conducted to examine the utilization of solid waste oil palm and SP-36 on the growth and yield of cayenne pepper on spodosols. This experiment used a factorial Completely Randomized Design (CRD) consisting of 2 treatment factors and 3 replication. The first factor is the provision of solid palm oil consisting of 4 (four) levels, namely without the provision of solid palm oil, 10 ton.ha-1, 20 ton ha-1, and 30 ton ha-1 solid palm oil. The second factor is the administration of SP-36 consisting of 4 (four) levels, namely : without giving SP-36, 100 kg ha-1, 200 kg ha-1 and 300 kg ha-1 SP-36. The variables observed were plant height, number of flowers plant-1, shoot/root ratio, dry weight plant-1, and fresh weight of fruit plant-1. The results showed that there was an interaction effect between oil palm solids and SP-36 on plant height, number of flowers, and fresh fruit weight of plant-1 on spodosol soil. The combination of solid oil palm 20 tons ha-1 and SP-36 200 kg ha-1 was the best combination in increasing the growth and yield of cayenne pepper on spodosols and produced the heaviest fresh fruit weight plant-1, which was 68,33 g plant-1.
Synthesis and characterization of TiO2-Fe for photocatalytic applications of domestic waste Rahmadhani, Annisa; Nasution, Hasmalina; Prasetya, Prasetya; Dayumita, Novialis; Siregar, Sri Hilma
Acta Chimica Asiana Vol. 6 No. 1 (2023)
Publisher : The Indonesian Chemical Society, Chapter Nusa Tenggara and The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v6i1.140

Abstract

Wastewater originating from household, industrial, and public places that contains materials can endanger human life and living things and disrupt environmental sustainability. Various methods have recycled domestic wastewater. One is through the photodegradation process utilizing ultraviolet light in the photocatalytic process. Inorganic materials are semiconductors with photocatalyst activity that can absorb photons and simultaneously carry out material interface transformation reactions. The research aimed to determine the effect of adding Fe metal dopants on TiO2 photocatalyst activity in simulated methylene blue and domestic waste treatment. The precursor used was TiO2 P25 Degussa Anatase. Fe dopant was added using the hydrothermal method with variations of 2%, 4%, and 6%. The XRD characterization results show that TiO2 has a high degree of crystallinity, so the overall process of electron diffusion and electron transfer in SSPT is higher to increase its efficiency. SEM-EDX characterization results show that TiO2-Fe particles are scattered in a spherical shape with a size of less than (<)100 nm and tend to agglomerate. Test results of simulated methylene blue (MB) waste with a UV-Vis spectrophotometer at variations in mass, concentration, pH, and time showed that the addition of doping could increase photocatalytic activity and optimum conditions at 6% (F6) were used in the analysis of parameters pH, COD and TSS of domestic wastewater. The pH value increased from 5 to 6, % COD degradation was 59.17%, and TSS was 23.07%. This research showed that TiO2-Fe was effective enough for domestic wastewater treatment.
Co-Authors Dayumita, Novialis Erina Riak Asie Hasmalina Nasution Rahmadhani, Annisa Siregar, Sri Hilma