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Pengaruh Waktu Kontak Terhadap Efektifitas Fitoremediasi Fosfat dan COD Dengan Eceng Gondok (Eichornia crassipes) dan Kiambang (Salvania natans) pada Limbah Cair Pencucian Pakaian RD Muhammad Luthfi Firmansyah; Charles Situmorang
JURNAL TECHLINK Vol. 3 No. 1 (2019)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (698.338 KB) | DOI: 10.59134/jtnk.v3i1.56

Abstract

The growth of the laundry industry in urban areas increasingly increases the level of pollution of urban water bodies by detergent waste so that water is increasingly polluted. One of the compounds contained in detergent is a phosphate compound which can cause eutrophication in water bodies. Phytoremediation is an attempt to use plants and their parts to decontaminate waste and environmental pollution problems. Eceng gondok (Eichhornia crassipes) and Kiambang (Salvania natans) is one of the water plants that can be used to reduce pollutant levels in industrial washing clothes waste by phytoremediation. This study aims to determine the ability of water hyacinth (Eichhornia crassipes) and kiambang (Salvania natans) in reducing phosphate in clothes washing waste by using two variables, namely the number of plants 2, 4 and 6 plants as well as contact time 2, 4 and 6 days. The results showed that the most optimum plants reduced phosphate levels, namely water hyacinth plants (Eichhornia crassipes) with 2 plants and 4 days contact time with a phosphate concentration of 0.3389 mg / L
PENGEMBANGAN METODE ANALISIS BENZENA, TOLUENA, DAN XYLENA DALAM UDARA LINGKUNGAN KERJA MENGGUNAKAN IN HOUSE METODE DI PT UNILAB PERDANA Rendi Maulana; Rofiq Sunaryanto; Charles Situmorang
JURNAL TECHLINK Vol. 4 No. 1 (2020)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (190.789 KB) | DOI: 10.59134/jtnk.v4i1.61

Abstract

Benzene, Toluene and Xylene (BTX) compounds are compounds that have colorless and flammable characteristics, have a sweet odor with a low toxicity level, and are not soluble in water. This compound is often used as a solvent, extractor and as a chemical intermediary. The testing of BTX parameters in the working environment refers to the National Institute of Occupational Safety and Health (NIOSH) method number 1501. The method must be modified or developed in terms of equipment and instruments, due to looking at the condition of the materials and equipment in PT UP, i.e. using different columns, capillary columns, fused silica, 30m x 0.32-mm ID; 1-μm film 100% PEG becomes a Rtx-5MS column, and measurements using a FID detector become a Mass Spectrometer detector. And the solvent used is Carbon Disulfiida (CS2) to Methanol for gas chromatography. CS2 solvents are carcinogenic in the body so that they are harmful to human health. Besides being harmful to health, the waste produced by CS2 causes damage to the ozone layer on the earth's surface so that it can trigger global warming which will make the earth feel hot. In addition, CS2 solvents in Indonesia have begun to be reduced in production and will be illegal inthe future. Therefore, this method needs to be validated before doing a routine analysis so that the data obtained is valid.
EFEKTIVITAS ARANG AKTIF CANGKANG KEMIRI (Aleuritas molaccanu) UNTUK PENGOLAHAN LIMBAH TEMPE Bryan Fery; Charles Situmorang; Ai Silmi
JURNAL TECHLINK Vol. 6 No. 02 (2022)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (428.494 KB) | DOI: 10.59134/jtnk.v6i02.169

Abstract

This study aims to determine the effect of giving candlenut shell activated charcoal using the parameters BOD (Biochemical Oxygen Demand), TSS (Total Suspended Solid), and pH (power of hydrogen) in tempe waste. The research uses quantitative methods, the type of research is experimental and laboratory observation. The research sample consisted of tempe waste and candlenut shell activatedcharcoal. The data analysis technique consisted of calculating the effectiveness and efficiency of removal, as well as the Kruskal-Wallis statistical test. The results showed that activated charcoal of candlenut shells could reduce BOD and TSS levels in tempe waste. In addition, it can increase the pH of tempe wastewater to normal (pH = 7). Overall, the BOD parameters are still in normal conditionsand have not passed the predetermined threshold. The removal efficiency of activated charcoal from candlenut shells on BOD, TSS, and pH levels in tempe waste as a whole increased. The results of the Kruskal-Wallis H test for the BOD parameter obtained a significant value (Asymp. Sig.) of 0.083 > 0.05. TSS obtained a significant value (Asymp. Sig.) of 0.881 > 0.05. pH obtained a significant value (Asymp. Sig.) of 0.351 > 0.05. Thus, H0 is accepted or there is no significant (significant) difference in the ability of candlenut shell activated charcoal to BOD, TSS, and pH levels in tempe waste. This is because the samples used in laboratory tests on tempeh waste are still small, only repeated twice, the weight of the candlenut shell activated charcoal is only 5 grams and 10 grams, respectively.The conclusion shows that there is a decrease caused by giving candlenut shell activated charcoal using BOD (Biochemical Oxygen Demand) and TSS (Total Suspended Solid) parameters, as well as making the pH (power of hydrogen) neutral (pH 7) in tempe waste.
PENGARUH RELOKASI PEMUKIMAN KUMUH TERHADAP KUALITAS KESEHATAN LINGKUNGAN (STUDI KASUS KAMPUNG PULO JAKARTA TIMUR) Irma Octalita Manurung; Charles Situmorang
JURNAL TECHLINK Vol. 6 No. 02 (2022)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (600.728 KB) | DOI: 10.59134/jtnk.v6i02.171

Abstract

This study aims to determine the effect of slum relocation on environmental health quality (case study of Kampung Pulo, East Jakarta). The research method used is a survey with a quantitative approach. Data were analyzed using correlation and simple linear regression. This research was conducted on residents of Kampung Pulo slum relocation who were moved to West Jatinegara flats, East Jakarta, DKI Jakarta Province. This research was conducted from January to June 2022. The population of this study is 125 people of Kampung Pulo who were relocated to the West Jatinegara flats, East Jakarta. The sampling technique used is non-probability sampling, which is incidental sampling. The number of samples in this study using the Slovin formula of 95 Kampung Pulo people who were relocated to the West Jatinegara flats, East Jakarta. The results showed that the analysis obtained the regression equation = 32.185 + 0.603 X interpreted that every change in the Slum Settlement Relocation variable score (X) was 1 point, it can be estimated that the Environmental Health Quality score (Y) would change by 0.603 in the same direction with a constant of 32,185. The results of the t-test for tcount of 7.068 are greater than ttable (95) of 1.661 at = 0.05. The significance value (sig.) of 0.000 is smaller than = 0.05. This means that there is a positive (7.068) and significant (0.000) effect between Slum Relocation (X) on Environmental Health Quality (Y). The conclusion of the t test results is that there is a significant positive effect between Slum Relocation (X) on Environmental Health Quality(Y). This means that the more the relocation of slums to the West Jatinegara flats, East Jakarta, DKI Jakarta Province, the quality of environmental health will also increase. The correlation coefficient of the effect of Slum Settlement Relocation (X) on Environmental Health Quality (Y) (R) of 0.591 is included in the category of moderate relationship (Table 3.3: Medium = 0.40 – 0.599). The coefficient of determination is obtained from the R square value of 0.349. So 34.9% of the variance in Environmental Health Quality (Y) can be explained by the Slum Settlement Relocation variable (X). The remaining 65.1% is influenced by other variables outside the research, such as environmental sanitation, clean and healthy living behavior (PHBS), clean living attitudes and so on. Based on the results ofhypothesis testing, research findings show that there is a significant positive effect between Slum Settlement Relocation (X) on Environmental Health Quality (Y). Thus, the conclusion of the study is that the more the relocation of slums to the West Jatinegara rusunawa, East Jakarta, DKI Jakarta Province, the quality of environmental health will also increase
EFEKTIVITAS CANGKANG BUAH KENARI (Kanarium ovatum) SEBAGAI KARBON AKTIF DALAM MENGOLAH AIR LIMBAH INDUSTRI TEMPE UNTUK MENURUNKAN BOD, TSS DAN MENETRALKAN pH Elvianto Zagoto; Charles Situmorang
JURNAL TECHLINK Vol. 6 No. 02 (2022)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (553.211 KB) | DOI: 10.59134/jtnk.v6i02.172

Abstract

This research was conducted to determine the characteristics of good activated carbon from the shell of a walnut (Kanarium ovatum). The purpose of this study was to treat tempe industrial wastewater using activated carbon from walnut shells (canarium ovatum). Tempe industrial wastewater treatment discharge 60 minutes and a dose of 14.4mg PH measurement results after processing from acid to neutral as well as in the BOD and TSS testing after processing using activated carbon with a dose of 14.4mg with a discharge of 30 minutes the test results decreased. The results showed that activated carbon from walnut shells (canarium ovatum) can be used in treating tempeh industrial wastewater. Activated carbon from walnut shells (canarium ovatum) can be used to treat tempe industrial wastewater.