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OPTIMALISASI PROSES DESULFURISASI BATUBARA ASAL SULAWESI SELATAN DENGAN MENGGUNAKAN PENAMBAHAN MINYAK NABATI HS, Syamsidar
Teknosains Vol 5, No 1 (2011): JANUARI
Publisher : Fakultas Sains dan Teknologi UIN ALauddin

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Coal in future will become a prospective candidate for alternative energy source. However, South Sulawesi coal still contains high concentration of sulphur which becoming a disadvantage for being used as an alternative energy. So far we need to develop such desulphurisation methods that not only practice abd efficient but also environmental friendly.The use of vegetable oil, which in oxidized form produces hydroperoxide, a powerful oxidizing agents, in desulphurisation process can oxidized the organic and inorganic sulphur of coal.The goal of this research will be, (1) to find out the NaOH optimum time and concentration for the initial treatment to effeciently desulfurized the coal, (2) to process, (3) to discover the maximum ratio of coal-oil in which can gave the maximum loss of sulphur (4) to justify maximum calories values of coal after the coal being desulfurized with vegetables oils.The research was carried out first with crushing the coal into about 200-mesh size following by analyzing the sulphur contents, which gave a result of 2,86% before desulphurized.In the initial treatment for desulphurisation, 75 mL of NaOH 1% and 5% was added to the coal for 1,3,5, and 7 hours respectively. After that coal was dried in temperature of 100oC. The maximum result from of this treatment was found 5% NaOH for 5Â hour treatment, which reducing the content of sulphur about 2,239% or can desulphurized the coal until 22,035%Furthermore, variation of coal-vegetables oil ratio from (2:1), (1:1), (1:2), (1:3) and to the ratio with the constant absorbance values justified that the maximum ratio of (1:1) gave the maximum percentage of sulphur loss about 74,24% for traditional oils and 66,61% for crude palm oil respectively. These treatment also increasing the coal calories values 6176,80 to 6449,74 â 7767,09 kilocalories.Based on these result it can be concluded that the vegetable oil can effectively used in coal desulphurisation.

PEMBUATAN DAN UJI KUALITAS BIODIESEL DARI MINYAK JELANTAH HS, Syamsidar
Teknosains Vol 7, No 2 (2013): JULI
Publisher : Fakultas Sains dan Teknologi UIN ALauddin

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Research of this experiment aim to know how quality and exploiting of biodiesel yielded of Used Cooking oils. Oil Sample used Cooking oils taken away from by merchant fry roadside. This research early from purification of ex- cooking oil /used cooking oils. Pure oil result of purification is later, then used for the making of biodiesel with method reaction of transesterifikation covering some phase that is warm-up and mixing, dissociation and precipitation, netralisasi, draining and wash and also omission of water. Yielded Biodiesel of oil used cooking oils is hereinafter tested by its quality to know do biodiesel of oil of used cooking oils this competent to be used upon which burn alternative or do not. As for test of is quality of which is done/conducted that is determination specific gravity, viskositas, water rate, sour number, free gliserol, total gliserol, ester rate of alkil number and of iod. Result of research indicate that pursuant to test of is quality of which have been done/conducted by hence biodiesel of oil of jelantah can be used as by alternative fuel substitution of diesel fuel because have fulfilled standard of biodiesel Indonesia.Keywords: alternative fuel, biodiesel, test the quality of biodiesel and used cooking oils.

Penentuan Kadar dan Distribusi Spasial Logam Berat Kadmium (Cd) pada Rumput Laut Euchema cottonii Asal Perairan Kab. Takalar dengan Metode Spektrofotometer Serapan Atom (SSA) Muh. Tasjiddin Teheni; Syamsidar HS
Al-Kimia Vol 1 No 1 (2013): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Seaweed is one of the potential export commodity to be developed in Indonesia. Types of seaweed in Indonesia that have high economic value, namely Eucheuma cottonni where Takalar is one seaweed production center in South Sulawesi. This study aimed to determine the levels of heavy metal cadmium in seawater and seaweed and the distribution of heavy metals in the waters of Takalar. The cadmium quality kwelswere determined by Atomic Absorption spectrophotometry (AAS) method. The sample analysis did through the process of destruction used HNO3, 10% HCl. The total spots of sampling are six in ekuding Sanrobone, Maciini Baji, Batiro Baji, Laikang and Puntondo village were spreaded out from North to South. The results of research shaowed that Cd metal was distributed at six site where the highest level was on Sanrobone village that was 0.4725 ppm and the lowest in Puntondo village that was 0.3910 ppm. The high levels of cadmium was influenced by levels of Cd on the sea water where the highest level of Cadmium were in the Sanrobone village and the lowest level in the Puntondo village. The levels of Cadmium metal on sea and Euchema cottonii seaweed at six has exceded the threshold set by PP RI No.20/1990 was 0,1 ppm.

Isolasi dan Uji Aktivitas Enzim Selulase dari Bakteri Simbion Larva Kupu-Kupu Family: Cossidae Terhadap Variasi Lama Inkubasi Rina Dwismar; Maswati Baharuddin; Syamsidar HS
Al-Kimia Vol 1 No 1 (2013): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

The study is titled Isolation and Testing Cellulase Enzymes from Bacterial Symbiont butterfly larvae Family: Cossidae of Variations on Old Incubation aimed to isolate cellulase enzymes in larvae of butterflies and determine tIsolasi dan Uji Aktivitas Enzim Selulase dari Bakteri Simbion Larva Kupu-Kupu Family: Cossihe optimum incubation time of enzyme production and activity of enzymes to degrade CMC substrate. In this study, an enzyme produced from the microbial gut symbionts Cossidae butterfly larvae that had been cultured in media cellulolytic, then produced the long incubation variation of 0, 12, 24, 36, 48, 60, and 72 hours, crude enzyme obtained by centrifugation at a speed of 5000 rpm at 40C and then tested enzyme activity using UV-VIS spectrophotometer. From the research result that cellulolytic bacteria can be isolated from the gut of larvae of butterlies Family: Cossidae with old optimum activity of cellulase enzyme production is 60 hours with a value of activity amounted to 2,38 x 10-3 U/mL.

Fitoremediasi Tanaman Rumput Benggala (Panicum Maximum Jacq) Terhadap Logam Kadmium (Cd) Sintetik dan Tanah TPA Tamangapa Antang Makassar A. Reskianti Wardani; Syamsidar HS; Aisyah Aisyah
Al-Kimia Vol 1 No 2 (2013): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

One way to reduce the pollution of soil is by using phytoremediation. In this study phytoremediation methods used to remediate the landfill Antang Makassar using wild plants Bengal grass (Panicum maximum Jacq) in metals accumulate Cd. Growing media used were pure land Antang landfill waste with the addition of a synthetic variation of Cd concentration of 2 ppm, 4 ppm, 6 ppm, 8 ppm and pure contaminated soil without the addition of synthetic waste. From the results obtained, the lower Cd concentrations of synthetic wastewater were added, the higher the absorption, the absorption maximum occurs on the addition of synthetic wastewater with concentration of 4 ppm Cd on day 7, is 0.0608 mg/Kg.

Biosorpsi Tanaman Puring (Codiaeum variegatum) Terhadap Emisi Timbal (Pb) Pada Kendaraan Bermotor Nur Amalia P; Syamsidar HS; Kurnia Ramadani
Al-Kimia Vol 2 No 2 (2014): Desember
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Enhancement the motorized vehicle number will be potential for air pollution in the big cities. One of the pollutant which is resulted from burning process fuel is timbale (Pb) metal. Alternative effort that is used to decrease the higher timbale (Pb) metal pollutantmaterial is with manner biosorption use puring plant (codiaeumvariegatum).The aim of this research is to know the puring plantability in absorbs Pb metal. The treatment methodis used to sprinkling plant and without sprinkling and than directly exposure to plant with period 3,6 and 9 days. The result of research that puring leaves ability can absorb Pb concentration metal between (1 until 1,5) ppm or 0,304 mg/Kg at nine days of period exposure, it order can be considered as biosorption agent Pb metal pollution.

Biosorpsi Bogenvil (Bougainvillea spectabilis Wild) Terhadap Emisi Timbal (Pb) Pada Kendaraan Bermotor Andi Nurhikmah; Syamsidar HS; Kurnia Ramadani
Al-Kimia Vol 3 No 2 (2015): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

The motorized vehicle activities could result air pollution. One of the pollutan emitted from fuel process is lead which might be reduced by using Bogenvil plants (Bougainvillea spectabilis Wild). Bogenvil were planted in a 1 x 1,5 meter square sized green house where there is a particular hole to flow exhaust fume of motorized vehicle for an hour in each 3, 6, 9 and 12 day after the first exposure. The result shows that Bogenvil leaves have ability to absorb Pb metal emitted from vehicle in response to the exposure time. The highest accumulation of Pb in the leave is 0,469 mg/Kg with exposure time of 12 days. For this reason, the Bogenvil plant can be used as bio- accumulator of timbale metal in the air.

Fitoremediasi Tanaman Akar Wangi (Vetiver zizanioides) Terhadap Tanah Tercemar Logam Kadmium (Cd) Pada Lahan TPA Tamangapa Antang Makassar Alfia Patandungan; Syamsidar HS; Aisyah Aisyah Aisyah
Al-Kimia Vol 4 No 2 (2016): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

One example of soil contamination on land landfill is (TPA) Makassar. The method of prevention is phytoremediation of the contaminated land. This study examined the ability of the plant will vetiver (Vetiver zizanioides) in reducing the levels of Cd in the soil. To increase the potential of these plants to remediate Cd, the soil where the plants grow is combined with compost in which bacteria within the compost might improve the absorption of Cd. Planting medium used is pure soil and compost from Tamangapa Makassar. Research carried out for 28 days with a variation of the study. The composition of the media that the contaminated soil (TT) metal kadmium (Cd) and compost (K) with a ratio of 100% (TT): 0 K, 5 (TT): 1 (K), 4.5 (TT): 1.5 (K) and 4 (TT): 2 (K). The results shwed that vetiver plants were able to absorb Cd of 0,298 mg/Kg so it can be concluded that the composition of the planting medium with a combination of compost less significant because the combination of the contaminated soil with compost are less precise in helping vetiver plants accumulate or reduce metal pollution cadmium in contaminated soil Tamangapa Antang Makassar.

Dekolagenasi Limbah Tulang Paha Ayam Broiler (Gallus domesticus) oleh Natrium Hidroksida (NaOH) untuk Penentuan Kadar Kalsium (Ca) dan Fosfat (PO4) Sitti Musdalifah; Syamsidar HS; Suriani Suriani
Al-Kimia Vol 4 No 2 (2016): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

This research aims to determine the level of Calcium (Ca) and Phosphate (PO4), and the influence of broilers femur submersion in NaOH toward Calcium (Ca) and Phosphate (PO4) levels. The method used in this research is decollagenation of broilers (Gallus domesticus) femur. Then, the parameters observed are chemical tests of Calcium (Ca) and Phosphate (PO4) levels. Decollagenation treatment was carried out in three soaking-time variation such as 42 hours, 72 hours, and 96 hours to respectively determine the Calcium and Phosphate levels. The result shows that soaking-time of femur does not give significant effect to increased levels of Calcium (Ca) and Phosphate (PO4).

Pemanfaatan Limbah Cangkang Kerang Hijau (Perna Viridis) Menjadi Kitin Sebagai Biokoagulan Air Sungai Syamsidar HS; Ramayana Ramayana; Kurnia Ramadani
Al-Kimia Vol 5 No 1 (2017): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v5i1.2859

This study aims to determine the optimum weight of chitin that used as biocoagulant of river water. The water sample is taken from Kajenjeng river and the chitin used for research are isolated from green mussels (Perna viridis) shell powder through three steps such as deproteination by NaOH 3%, demineralization by HCl 1,25 N and depigmentation by NaOCl 4%. Then, the obtained chitin are contacted into water with variation of 0,25 gram; 0,5 gram; 0,75 gram and 1 gram in an hour. The result showed that optimum weight of chitin for COD determination, total hardness, calcium and turbidity is 0,75 gram, while optimum weight of chitin for magnesium determination is 0,5 gram.

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