Effect of Sodium chloride concentrations on the Growth and Some Organic Chemical Compounds of Barley Hordeum vulgaris L.

Naturally, microorganisms decompose the organic material existing in nature, both in the presence or absence of oxygen. The majority of materials such as poisonous chemical compounds, heavy metals, would prevent the treatment process from taking place, lead to the entry of these contaminants into the environment results in the emergence of numerous diseases. In the present study, using the TOXChem4.1 simulation model, attempts were made to simulate a wastewater treatment plant and then assess the dispersions of contaminants including 1,2-Dimethylnaphthalene, 1,3-Dinitropyrene, 1,6-Dimethylnaphthalene, 1,6-Dinitropyrene, and 17a-ethinylestradiol (EE2) in concentrations of a common scenario. The results of computer simulations showed that the EE2 contaminant is of the highest percentage of decomposition among others, due to its wider chemical structure. Consequently, it is clear that such contaminant is of the highest mass in the sludge exiting the treatment plant. In addition, the results of the simulations demonstrated that the highest volumes of gaseous pollutants take place in the modulation and initial sedimentation units.

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Analisis Kualitas Air Sungai Hasil Penyaringan Filter Berbasis Arang Sekam

SIMETRIS ◽

10.51901/simetris.v14i2.132 ◽

2020 ◽

Vol 14 (2) ◽

pp. 20-25

Author(s):

Hartono Guntur Ristiyanto

Keyword(s):

Rice Husk ◽

Government Regulation ◽

Chemical Compounds ◽

Filter Material ◽

Organic Chemical ◽

Physical Parameters ◽

Chemical Parameters ◽

Water Filter ◽

Inorganic Chemical ◽

Filter Layer

Industrial waste pollution from the upstream of the Bengawan Solo river, makes the river's quality unfit for various purposes. Water filtering needs to be done first to improve its quality. One of them is the absorption process. One of the adsorbents that have good prospects is rice husk waste because of its ability to bind the adsorbate components. Study related to the effectiveness of rice husk charcoal as a water filter material need to be carried out before it can be used as a water filter material. Making appropriate filter technology needs to be done to apply it. The results of the analysis show that the filter can improve the physical parameters of water, namely reducing the residue by 25% on average. Meanwhile, from inorganic chemical parameters, only DO (Dissolved Oxygen) elements have decreased in quality standards. The organic chemical parameters, namely the phenol content are relatively constant, this indicates that rice husk charcoal is not effective in binding phenols. Based on Government Regulation No. 82 of 2001, the filtered water is classified as Class I. However, in its use, other parameters that have not been studied should be studied, namely microbiology, other organic chemistry, radioactivity, etc.The technological capacity needs to be increased by the use of a larger body and or a reduction in the thickness of the filter layer. Meanwhile, the manufacture of rice husk charcoal should use controlled combustion mechanisms and or husk charcoal activation with the chemical Na OH to strengthen the properties of the husk charcoal adsorbent against harmful chemical compounds.

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Pengaruh Lama Waktu Pengadukan Terhadap Pengikatan Impuritis untuk Meningkatkan Kadar NaCl Pada Garam Rakyat

Journal of Pharmacy and Science ◽

10.53342/pharmasci.v1i1.46 ◽

2016 ◽

Vol 1 (1) ◽

pp. 9-14

Author(s):

Rika Puji Astuti ◽

Cicik Herlina Yulianti ◽

Rahmad Aji Prasetya

Keyword(s):

Sodium Chloride ◽

Sodium Hydroxide ◽

Barium Chloride ◽

Chemical Compounds ◽

Main Substance ◽

Nacl Concentration ◽

Before And After ◽

Stirring Time ◽

Standard Quality

ABSTRAKGaram dapat didefinisikan sebagai suatu kumpulan senyawa kimia yang bagian utamanya adalah Natrium Chlorida (NaCl) dengan zat-zat pengotor terdiri dari MgCl2, MgSO4, CaSO4, dan lain-lain. Dalam penelitian ini digunakan sampel garam rakyat dari Pasar Larangan Sidoarjo yang memiliki kualitas dibawah standar, dengan kadar NaCl 81,88% b/b. Oleh karena itu, diperlukan pemurnian garam dengan menggunakan metode rekristalisasi. Penelitian ini dilakukan untuk mengetahui pengaruh lama waktu pengadukan (15, 30, dan 45menit) terhadap penambahan beberapa senyawa kimia, seperti natrium hidroksida (NaOH), natrium karbonat (Na2CO3) dan barium klorida (BaCl2) untuk mengurangi ion polutan (Ca2+, Mg2+ dan SO42-). Sehingga kadar NaCl dalam garam rakyat akan meningkat. Kadar NaCl dihitung sebelum dan setelah diberi perlakuan dengan menggunakan metode titrasi argentometri. Hasil penelitian menunjukkan bahwa kadar NaCl tertinggi diperoleh pada rekristalisasi dengan lama waktu pengadukan 45 menit, dengan kadar 98,86% b/b. Kemurnian ini sesuai untuk memenuhi tuntutan kebutuhan masyarakat dan industri.Kata Kunci: Garam Rakyat, Kadar NaCl, Lama Waktu PengadukanABSTRACTSalt can be defined as chemical compounds which the main substance is Sodium Chloride (NaCl) with impurity substances consist of MgCl2, MgSO4, CaSO4, etc. This study used public salt from Larangan Market Sidoarjo which has sub-standard quality, and the concentration of NaCl is about 81,88%b/b. Hence, salt purification is needed using recrystallization method. This study was conducted to determine the influence of stirring time (15, 30, and 45 minutes) of the addition of several chemical compounds, such as sodium hydroxide (NaOH), sodiumcarbonate (Na2CO3) and barium chloride (BaCl2) in order to reduce the pollutant ions (Ca2+, Mg2+ and SO42-). Eventually the percentage of NaCl concentration in public salt will increase. NaCl concentration was calculated before and after treatment was using argentometry titration. The results shows that the highest NaCl concentration is obtained at recrystallization with stirring time 45 minutes, concentration 98,86% b/b. This purity suitable to meet the needs of society and industry demands.Keywords: Stirring Time, The Concentration Of NaCl, Public Salt.

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