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Study of the Effect of Domestic Wastewater from Jalan Lele Residents of Palangka Raya City on the Acidity and Alkalinity Levels of the Receiving Water Body: Studi Pengaruh Air Limbah Domestik Penduduk Jalan Lele Kota Palangka Raya terhadap Kadar Asiditas dan Alkalinitas Badan Air Penerima Manurung, Tety; Natalia, Nasa; Suma, Joy Angel Aria; Purba, Abed Nego; Naiya, Naiya; Hulu, Dominique F.S.; Rosmainar, Lilis; Hermayantiningsih, Dwi
Jurnal Jejaring Matematika dan Sains Vol. 5 No. 1 (2023): Jurnal Jejaring Matematika dan Sains
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2023.v5.i1.805

Abstract

This research aims to determine the impact of domestik waste water disposal produced by residents living on Jalan Lele, Palangka Raya City, on the value of acidity and alkalinity levels in the receiving water body. The acidity level obtained was 24.098 mg/L and the alkalinity level was 254.410 mg/L. The acidity levels not comply to the Government Regulation Number 20 of 1990 levels and Government Regulation Number 82 of 2001 for standart water quality type B. Similarly for alkalinity levels doesn’t comply to World Heal Organization Regulation 2011 for irrigation water. Based on the results ​​of high levels of acidity and alkalinity in receiving water bodies, it encourages further research to be carried out for monitoring and handling domestik waste in residential areas in the city of Palangka Raya.
Studi Presipitasi NaCl menggunakan Aseton dan HCl pada Proses Rekristalisasi Manurung, Tety; Angga, Stevin
Bohr: Jurnal Cendekia Kimia Vol 1 No 01 (2022): Bohr: Jurnal Cendekia Kimia Vol 01 No 01
Publisher : Program Studi Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/bohr.v1i01.5538

Abstract

Telah dilakukan studi presipitasi NaCl menggunakan aseton dan NaCl pada proses rekristalisasi. Studi dilakukan dengan memperhatikan efek penambahan aseton dan HCl terhadap jumlah kristal NaCl yang terbentuk pada proses akhir. Dalam metode penelitian ini, garam kotor yang telah dilarutkan dalam air kemudian dipanaskan dan disaring. Filtrat yang diperoleh selanjutnya ditambahkan variasi aseton dan HCl untuk menghasilkan kristal NaCl. Hasil dari penelitian dengan penambahan aseton didapatkan rendemen kristal NaCl sebanyak 4,5 g (90%), sedangkan pada penambahan HCl didapatkan rendemen sebanyak 2,1 g (42%).