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Charles Situmorang
FT-Universitas Satya Negara Indonesia
Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Public Health Social Sciences

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PENGARUH CA(OH)2 TERHADAP PERUBAHAN KADAR MBAS DAN FOSFAT LIMBAH DETERJEN LAUNDRY PADA BERBAGAI WAKTU PENGENDAPAN Charles Situmorang
JURNAL TECHLINK Vol. 1 No. 01 (2017)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59134/jtnk.v1i01.466

Abstract

Usaha laundry kini telah mengalami peningkatan jumlah pelanggan. Hal ini terjadi seiring dengan berkembangnya teknologi dan industri di Indonesia, baik industri kecil maupun industri besar.Laundry kiloan merupakan jasa untuk mencuci pakaian dimana dapat meringankan pekerjaan rumah tangga. Laundry juga merupakan salah satu bentuk kegiatan/usaha yang menghasilkan limbah yang dapat merusak lingkungan seperti pencemaran tanah, air, udara, dan mengganggu kesehatan jika limbah tersebut tidak diolah terlebih dahulu.Penelitian ini bertujuan untuk mengetahui konsentrasi Ca(OH)2 yang tepat dalam mengendapkan MBAS dan fosfat dalam limbah deterjen. Penelitian ini berfokus pada kandungan surfaktan yang terkandung dalam limbah deterjen laundry, yang digambarkan oleh perubahan kadar MBAS dan fosfat dengan dosis larutan Ca(OH)2 : 0, 5, 10, dan 20 g dengan waktu pengendapan 1 dan 2 jam.Penelitian dirancang dengan Rancangan Acak Lengkap (RAL) diperoleh hasil analisis varian dimana F hitung lebih besar dari F tabel. Dari analisis data yang diperoleh dapat disimpulkan bahwa makin tinggi dosis Ca(OH)2 yang ditambahkan mengakibatkan semakin tinggi penurunan MBAS limbah deterjen laundry.
PENGARUH TANAMAN SIRIH GADING (Epipremnum Aureum) TERHADAP CO DALAM RUANGAN Charles Situmorang
JURNAL TECHLINK Vol. 1 No. 2 (2017)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59134/jtnk.v1i2.475

Abstract

Udara merupakan sumber daya alam yang harus dilindungi untuk kehidupan manusia dan makhluk hidup lainnya. konsekuensinya pemanfaatan harus dilakukan secara bijaksana dengan memperhitungkan keseimbangan komposisi antar unsur pembentuk udara tersebut. Jumlah udara yang dibutuhkan oleh manusia bernafas sangat besar tergantung dari kegiatannya. Oleh sebab itu sekecil apapun konsentrasi polutan yang terdapat di udara akan menimbulkan gangguan. Pencemaran udara menyebabkan perubahan susunan (komposisi) udara dari keadaan normalnya. Kehadiran bahan atau zat asing dalam udara dengan jumlah tertentu serta berada di udara dalam waktu yang cukup lama, akan dapat menganggu kehidupan manusia, hewan dan tumbuhan. Salah satu langkah yang bisa dilakukan untuk mengurangi polutan di udara di dalam ruangan adalah menempatkan tanaman epipremnum aureum yang diyakini dapat berfungsi sebagai sebagai polutan udara dalam ruangan. Tujuan dari penelitian ini dilakukan untuk mendapatkan efisiensi tanaman epipremnum aureum sebagai polutan udara dalam ruangan. Metode yang dilakukan adalah ruangan yang dirancang berukuran 7 mx 10 m kemudian dilakukan pengukuran.Kata kunci: pollutan, sink, carbon monokside
EFEKTIFITAS FILTER KARBON AKTIF DALAM MENURUNKAN KADAR MANGAN (Mn) DAN BESI (Fe) DALAM AIR TANAH PUSKESMAS KELAPA DUA KABUPATEN TANGERANG Charles Situmorang
JURNAL TECHLINK Vol. 2 No. 1 (2018)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59134/jtnk.v2i1.486

Abstract

Humans and other living things are very dependent on water to sustain their lives. Based on the results of external supervision conducted by the Tangerang District Health Office in 2016, the quality of clean water in the Kelapa Dua Health Center contained Mn and Fe with levels exceeding the quality standard. Based on Minister of Health Regulation 416 of 1990, Manganese (Mn) levels in allowed drinking water are 0.5 mg / lt, Iron (Fe) 1.0 mg / lt, In this Data Analysis Technique including data processing techniques carried out by linear regression of data set as research variables. Based on the results, the following conclusions are obtained, the efficiency of activated carbon media with a media thickness of 90 cm in reducing Fe content in water by 39.38%, the efficiency of activated carbon media with a media thickness of 90 cm in reducing Mn content in water by 81.82%. There is a significant effect of filtration treatment on Fe, and Mn content. The thicker the filtration media, the better degradation of Fe, and Mn.
EFEKTIVITAS BONGGOL PISANG KEPOK (Musa paradisiaca) UNTUK MENURUNKAN KADAR BESI (Fe) DALAM AIR Charles Situmorang
JURNAL TECHLINK Vol. 2 No. 2 (2018)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59134/jtnk.v2i2.496

Abstract

Water is a major requirement for the people of Indonesia. The source of water that is widely used is groundwater, ie water wells. Caused by increased human and industrial activity, well water can be contaminated with ferrous metals (Fe). To be able to make water as a source of clean water, processing needs to be done. This treatment process can be done by adsorption method. The material used can be utilized from the banana hump (Musa paradisiaca L.) as an adsorbent material. The objective of this study was to determine the decrease of ferro content in water by using dried banana paradisiaca L. (Musa paradisiaca L.). This research is experimental type. The cumulative decrease of ferro content (Fe) from the result of addition of banana bonggol with dose 0,08 gram, 0,1gram, 0,2 gram, 0,3 gram, and 0,4 gram respectively is equal to 16,16%, 17 , 96%, 32.9%, 51.5%, and 57.4%. The maximum result of the reaction is ferro content (Fe) in water decreased to 57,4% for dose 0,4 gram / 100 ml water for 30 minutes. In statistical results, there is significance value of p = 0,000 (á 0,05) or there is influence of various doses of banana stump in decreasing ferro content (Fe) in water.
PENGARUH CAR FREE DAY TERHADAP PENGGOLONGAN KUALITAS UDARA PARAMETER SO2 DAN NO2 DI DEPAN MESJID RAYA SUMATERA BARAT KOTA PADANG Muhamad Ridwan; Charles Situmorang; Hening Darpito
JURNAL TECHLINK Vol. 4 No. 2 (2020)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59134/jtnk.v4i2.505

Abstract

One of the programs of the Padang city government in reducing air pollution is with Car FreeDay program which is held every Sunday which is carried out in front of Mesjid Raya Sumatera Barang,Jalan Khatib Sulaiman, Padang City. In this research was intended to determine the effect of the CarFree Day program on ambient air quality with the parameters: NO2 and SO2. The methodology of thisresearch is to carry out direct measurements using an impinger to measure NO2 and SO2.Measurements were carried out for 2 weeks (Non Car Free Day and Car Free Day), then air qualityclassification was carried out using the Air Pollution Standard Index approach (Pendekatan IndeksStandar Pencemraran Udara, ISPU). The results showed that on Car Free Day (Sunday) for parametersof NO2 reduced NO2 values in the air from 43.25 μg/Nm3 to 7.5 μg/Nm3 and for parameters of SO2 onCar Free Day (Sunday) reduced SO2 values from 47,916 μg/Nm3 to 25.5 μg/Nm3 and for theclassification of air quality using Air Pollution Standard Index approach (Pendekatan Indeks StandarPencemraran Udara, ISPU) shows the air quality in front of the Masjid Raya Sumatera Barat, JalanKhatib Sulaiman, Padang City is good.
HUBUNGAN SIKAP HIDUP SEHAT DAN PENGETAHUAN TENTANG COVID 19 TERHADAP PERILAKU AMAN PADA SAAT PEMBATASAN SOSIAL BERSKALA BESAR (PSBB) TRANSISI Charles Situmorang; Adam Zulkifli
JURNAL TECHLINK Vol. 5 No. 2 (2021)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59134/jtnk.v5i2.522

Abstract

In early 2020 the whole world was shocked by the Coronavirus, which spreads so fast, almost the entire world is infected. Coronavirus is an RNA virus with a particle size of 120- 160 nm. This virus mainly infects animals, including bats and camels. This virus not only attacks the health side but attacks the world economic side, so the Indonesian government immediately makes a policy by implementing a transitional PSBB which is expected to coexist with the community with this virus on condition that they always adhere to health protocols. This study aims to find a relationship between healthy living and safe behavior and to find a relationship between knowledge about Covid 19 and safe behavior. This study uses a questionnaire method to obtain data in the field by distributing a google form link to willing respondents. For data analysis, this research uses the homogeneity test method, correlation test, and regression test. Based on the results of the study, it was found that between a healthy lifestyle and safe behavior, a correlation significance value of 0.663 was obtained where this value was more than 0.5 which indicated there was no relationship and between knowledge about Covid 19 and safe behavior, the correlation significance value was 0.890 where this value more than 0.5 which indicates there is no relationship.
ANALISIS HUBUNGAN ANTARA PENGETAHUAN TENTANG KESELAMATAN KESEHATAN KERJA (K3) DAN PERILAKU PENGGUNA ALAT PELINDUNG DIRI (APD) DENGAN DOSIS RADIASI PEKERJA Riyanto -; Charles Situmorang; Deni Kurniawan
JURNAL TECHLINK Vol. 6 No. 1 (2022)
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59134/jtnk.v6i1.528

Abstract

This study aims to analyze the relationship between knowledge about occupational health safety (OHS) and the behavior of users of personal protective equipment (PPE) with the radiation dose of workers. The research method used is quantitative. The population of this research is all radiation workers, totaling 12 workers at PT Incoray Nitrama. The sampling technique is a saturated sample, that is, all members of the population are used as samples. The research sample consisted of 12 radiation workers. Data analysis used simultaneous correlation regression, t test, and coefficient of determination. The results showed that, there was a negative and significant relationship between knowledge of OHS and behavior of PPE users together on radiation worker doses, because it was in the range of Fcount 6.043 > Ftable 4.26 at = 0.05. That is, the higher the knowledge of K3 and the behavior of PPE users, the lower the dose of radiation workers will be exposed to. The conclusion of the study, if exposure to radiation dose of workers is low, then factors such as knowledge of OHS and behavior of PPE users are increased. The coefficient of determination of OHS knowledge and behavior of PPE users together on radiation worker dose (R Square) is 0.573. This shows that 57.3% of the variance in radiation worker doses can be explained by knowledge of OHS and behavior of PPE users together, the remaining 42.7% is influenced by other factors outside the variables studied.
Co-Authors Adam Zulkifli Deni Kurniawan Hening Darpito Muhamad Ridwan Riyanto -