scholarly journals Artikel Review: Penggunaan Kitosan Dan Biji Asam Sebagai Biokoagulan Alami Dalam Perbaikan Kualitas Air Sumur Di Sekitar Tpa Sampah Antang

2021 ◽  
Vol 6 (1) ◽  
pp. 48-52
Author(s):  
Zakir Sabara ◽  
A Artiningsih ◽  
Arham Efendi ◽  
A. Ira Yulistianingsih
Keyword(s):  
Atomic Absorption ◽  
Open Dumping

Lokasi TPA Antang yang berada di sekitar perumahan penduduk, dalam pengoperasiannya melakukan cara open dumping. Sistem ini tidak memperhatikan sanitasi lingkungan, sampah hanya di tumpuk dan dibiarkan membusuk. Sampah hanya ditimbun dan dibiarkan terbuka dengan tanah, di mana sistem pengolahan lindi (leachate) yang tidak maximal dapat mempengaruhi kualitas air tanah dangkal di sekitarnya. Penelitian ini bertujuan mengetahui efektifitas kitosan dari Cangkang Bekicot dan Biji Asam Jawa dapat menurunkan konsentrasi logam berat tembaga (Cu) pada air sumur di sekitar TPA sampah Antang Makassar. Tahap pembuatan kitosan meliputi deproteinasi, demineralisasi serta deasetilasi. Proses preparasi biji asam meliputi pembersihan biji dari bauh, di hancurkan menggunakan mortal setelah itu di ayak. Penelitian ini menggunakan variasi volume kitosan 10.000 ppm dan volume biji asam yaitu 5 mL, 10 mL, 15 mL, 20 mL dan 25 mL kitosan dan biji asam yang ditambahan kedalam air sumur 500 mL. Kadar Cu pada air sumur sebelum dan sesudah penambahan kitosan dan biji asam diukur menggunakan Atomic Absorption Spectrophotometric (AAS). Penjernihan air sumur di sekitar TPA sampah Antang menggunakan kitosan dan biji asam pada penelitian ini diselesaikan melalui studi literatur dengan menggunakan metode koagulasi dan bahan aku kitosan dan biji asam. Dari beberapa hasil studi literatur yang telah dilakukan, maka dapat disimpulkan bahwa proses koagulasi menggunakan kitosan dari cangkang bekicot dan biji asam dapat digunakan untuk memperbaiki kualitas air

Is there a “universal” MAC equation?

1990 ◽  
Vol 48 (2) ◽  
pp. 228-229
Author(s):  
Robert E. Ogilvie
Keyword(s):  
Absorption Coefficient ◽  
Atomic Absorption ◽  
Atomic Number ◽  
X Ray ◽  
Time Period ◽  
Image Position

The search for an empirical absorption equation begins with the work of Siegbahn (1) in 1914. At that time Siegbahn showed that the value of (μ/ρ) for a given element could be expressed as a function of the wavelength (λ) of the x-ray photon by the following equationwhere C is a constant for a given material, which will have sudden jumps in value at critial absorption limits. Siegbahn found that n varied from 2.66 to 2.71 for various solids, and from 2.66 to 2.94 for various gases.Bragg and Pierce (2) , at this same time period, showed that their results on materials ranging from Al(13) to Au(79) could be represented by the followingwhere μa is the atomic absorption coefficient, Z the atomic number. Today equation (2) is known as the “Bragg-Pierce” Law. The exponent of 5/2(n) was questioned by many investigators, and that n should be closer to 3. The work of Wingardh (3) showed that the exponent of Z should be much lower, p = 2.95, however, this is much lower than that found by most investigators.

Analysis of Lead Heavy Metal (Pb) Contamination on Matte Lipstick Preparations for Sale in Banda Aceh City Aceh Market

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Rizki Andalia ◽  
Mulia Aria Suzanni ◽  
Rini Rini
Keyword(s):  
Heavy Metal ◽  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
The Body ◽  
Permissible Limit ◽  
The Sun ◽  
Absorption Spectrophotometry ◽  
Pb Contamination ◽  
Body Organ ◽  
Banda Aceh

Lipstick or lip dye is a cosmetic dose that serves to coloring, decorative the lips, as a moisturizing material and protect the lips from exposure the sun to provide optimum results. Lipstick should not contain chemicals such as lead (Pb) because the Pb is a heavy metal that is very dangerous when continuously used on the skin, because it will be absorbed into the blood and attack the body organ causing the onset of disease. According to BPOM that the lead rate on the lipstick does not exceed the permissible limit of 20 mg/kg or 20 ppm.This research aims to know the levels contained in the samples are 4 brands of matte lipstick that are sold in the Aceh market in Banda Aceh City with the method of atomic absorption spectrophotometry (AAS). The results showed that on the 4 brands of lipstick matte contain heavy metal lead (Pb) with a rate still qualified allowed by BPOM  is samples A, B, C, and D, respectively at 0.24 ppm; 0.10 ppm; 2.87 ppm and 1.32 ppm, so that the 4 brands of lipstick matte are still used.

ANALISIS RISIKO PAJANAN NH3 DAN H2S TERHADAP GANGGUAN PERNAPASAN PADA PENDUDUK DI SEKITAR TEMPAT PEMBUANGAN AKHIR SAMPAH BUKIT PINANG SAMARINDA

2018 ◽  
Vol 2 (1) ◽  
pp. 49
Author(s):  
Ade Rahmat Firdaus
Keyword(s):  
Air Pollution ◽  
Exposure Period ◽  
Quality Standard ◽  
Cross Sectional ◽  
Standard Result ◽  
Garbage Dump ◽  
Respiratory Disorders ◽  
The People ◽  
Pollution Research ◽  
Open Dumping

The air pollution in the garbage dump gave the bad effect for the environmental health , NH3, H2S and the other polluted gases were the causes of air pollution that could give the bad effect for health, especially respiratory disorders. The garbage dump of bukit pinang was located in samarinda and still used open dumping method that could cause environmental pollution. Research design used cross sectional approach. The sample of NH3 and H2S was taken at 3 points and there were 34 respondents that were chosen using purposive sampling. Data collection included in the measurement of NH3 and H2S, interview, and observation of respiratory disorders. Data analysis used t-independent test with 95% of confidence level.Result of the study showed that the concentration of NH3 and H2S at garbage dump of Bukit Pinang at sample points I, II, and III was still under quality standard. Result of T - Independent showed that there was relationship among concentration of NH3 (ρ-value= 0,005), concentration H2S (ρ-value=0,042), exposure period of NH3 and H2S (ρ-value=0,000), and Risk Quotient NH3 (ρ-value=0,000), H2S (ρ-value=0,000) with the respiratory disorders of the people around the garbage dump of  bukit pinang. Result of Mann-Whitney test showed that there was no relationship between exposure frequency of NH3 and H2S (ρ-value=0,284) with the respiratory disorders of the people around the garbage dump of bukit pinang

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