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All Journal Bumi Lestari Prosiding Seminar Nasional MIPA Al-Kimia Chemistry Notes
Philiphi de Rozari
Department Of Chemistry Faculty Science And Engineering Nusa Cendana University Kampus Penfui UNDANA Jl. Adisucipto Kupang NTT
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Energy Environmental Science

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Journal : Chemistry Notes

 1 
REDUCTION OF ANIONIC SURFACTANT IN DETERJENT FROM DOMESTIC WASTE WATER USING PUMICE AND SAND AS A MEDIA IN CONSTRUCTED WETLAND SYSTEM Selan, Fianelda Th; de Rozari, Philiphi; Nitbani, Febri Odel; Ola, Pius Dore
Chemistry Notes Vol 2 No 1 (2020): Chem. Notes 2020, 2(1)
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/cn.v2i1.2339

Abstract

The use of pumice and sand as a media in Constructed wetland (CW) system to reduce anionic surfactant has been carried out. This research aimed to investigation the efficiency of pumice and sand in CW system with and without plant (cymbopogon citrates) for CW anionic surfactant removal. There were six variation of CW treatments based on percentage pumice amended in the sand media. The anionic surfactant were analysed using UV-VIS spectrophotometry with metilen blue methods. Results of the analysis on oneway anova showed that the efficiency removal of anionic surfactant in inflow and outflow is significant different, on the variation of media of pumice 10% and sand 90% (CW B) reduced anionic surfactant levels efficiently from an average of 0,481 ppm ppm to 0,188 ppm with a decrease in percentage value of 60,91%.
Bioaktivitas Metabolit Sekunder dari Genus Dipterocarpus Nalle, Halena A.; Lulan, Theodore Y. K.; de Rozari, Philiphi; Ola, Antonius R. B.
Chemistry Notes Vol 4 No (1) (2022): Chem. Notes 2022, 4 (1)
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/cn.v3i2.6078

Abstract

Research has been conducted with the title "Literature Study of Secondary Metabolites and Bioactivity of Plants Genus Dipterocarpus". The method used is a descriptive method with the aim of being to find out the active compounds in the genus plant dipterocarpus and to know the ability of the bioactivity of genus plants dipterocarpus. Based on the results of the study, bioactivity of secondary metabolites from planst of the genus dipterocarpus namely antidiabetic, antiplasmodial, antibacterial, antioxidant, anticlasses, cytotoxic, anticholinesterase, antiproliferation, anti-inflammatory and antimicrobial. Very strong biosaltivity indicated by the ethyl acetate faction plant D. Intricatus Sagai Antioxidant IC50 Nialial is 0.075 μg / mL. While very weak bioacchables are shown extract methanol stem plant D. Costatus as cytotoxic with ic50 value 973 ± 14.57 μg / mL.
Analisis Kualitas Air Desa Nulle Kecamatan Amanuban Barat Kabupaten Timor Tengah Selatan Mawar, Yuliana Pelewa; Kadang, Luther; de Rozari, Philiphi
Chemistry Notes Vol 4 No (1) (2022): Chem. Notes 2022, 4 (1)
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/cn.v4i(1).7744

Abstract

Water is one of the most important human needs, there for the availability and of water has to be protected from pollution. The purpose of the study was to determine the quality of the Spring based on physical, chemical and biological parameters in the Tailete, Netbesi and Oenise springs in Tublopo village, West Amanuban district, South Central Timor regency. The research sampling method followed the meet developed on Indonesian National Standard (SNI) and determination of water quality status was based on the storet method accords to the Decree of the Minister of the Environment No. 115 of 2003. The results should physical and chemical parameters in the Tailete, Netbesi and Oenise springs indicate that meet the water quality standards based on the Minister of Health regulation No. 32 of 2017. However, did was not meet Water quality standards detergent and microbiological parameters, coliform in the Tailete and Oenise springs. The quality status of the Tailete and Oenise springs in was clasis moderately polluted with a score of -25. Meanwhile, class A Netbesi springs are classified as meeting water quality standards with a score of 0.
PREPARATION OF ACTIVATED CHARCOAL FROM Terminalia catappa L. SEED SHELL AS AN ADSORBENT OF LIQUID WASTE OF TOFU INDUSTRY Ola, Pius D.; Bria, Apriance M.; Gauru, Imanuel; Rozari, Philiphi De
Chemistry Notes Vol 5 No 1 (2023): Chem Notes 2023, 5(1)
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/cn.v5i1.11851

Abstract

A research on preparing activated charcoal from Terminalia catappa L. seed shell has been done. This study aimed to determine the characteristics of activated charcoal from Terminalia catappa L.seed shells and test its ability to reduce COD and TSS from a liquid waste of the tofu industry. The parameters studied in characterizing activated charcoal included moisture content, ash content, absorption of I2 and surface area using methylene blue. Analysis of the COD parameter used the redox titration method, while the TSS parameter used the gravimetric method. he optimum time for applying activated charcoal to liquid tofu waste was by measuring COD and TSS levels after interaction with activated charcoal. Results of activated charcoal characterization showed a moisture content of 5%, ash content of 2.10%, an absorption capacity of I2 761.4 mg/g and a surface area of ​​26.74 m²/g. The highest decrease in COD levels occurred at 90 minutes of contact time from initial levels of 2,976 mg/L to 2,304 mg/L, with a reduction efficiency of 22.6%, and the highest decrease in TSS levels occurred at 90 minutes of contact time from initial levels of 1,440 mg/L to 334 mg/L, with a reduction efficiency of 76.8%. Generally, activated charcoal from Terminalia catappa L. seed shells showed an ability to reduce the COD and TSS from the liquid waste of the tofu industry.
Co-Authors Antonius R.B. Ola Bria, Apriance M. Gauru, Imanuel Kadang, Luther Lulan, Theodore Y. K. Mawar, Yuliana Pelewa Merpiseldin Nitsae Nalle, Halena A. Ola, Pius D. Pius Dore Ola Pius Dore Ola Selan, Fianelda Th Sherlly Ledoh