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All Journal Jambura Journal of Chemistry Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Anggraeni, Cerly Nurlita
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Chemistry Earth & Planetary Sciences Education Engineering

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Analysis of water quality in watershed using heavy metal pollution index Ujianti, Rizky Muliani Dwi; Novita, Mega; Burhanuddin, Aan; Muflihati, Iffah; Agung, Lukman Anugrah; Ingsan, Roies Nur; Wafa, Alfan Najihil; Anggraeni, Cerly Nurlita; Muzakki, Tsaqif
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.35680

Abstract

The quality of rivers and coastal is gradually deteriorating along with rapid population and socio-economic growth in the watershed to the estuary. Sampling was conducted in Semarang city rivers and Demak district rivers, Central Java Province, Indonesia, at four different stations according to geography and designation: river basins, estuaries, and rivers affected by industrial and domestic waste. Research time is August - October 2023 during the dry season. The research method uses descriptive analysis to determine the variables to be studied based on the research results in the field. River and coastal pollution levels are measured using the Heavy Metal Pollution Index method, with several water quality parameters measured, such as BOD, COD, Ammonia, TDS, TSS, and Total Coliform. In contrast, the heavy metal parameters measured are Cd, Ni, Zn, Cu, and Pb. The heavy metals and water quality parameters analyzed guided by Government Regulation of the Republic of Indonesia Number 22 of 2021 class 2. Water quality and heavy metal analysis use the Heavy Metals Pollution Index (HPI). HPI is an assessment method that shows the influence of individual heavy metal compounds on overall water quality. The results show that the status of non-metal water quality in terms of HPI analysis shows that Sampling Station (SS) 1 is 224.30 (unsuitable for drinking), SS 2 is 645.98 (unsuitable for drinking), SS 3 is 320.09 (unsuitable for drinking), SS 4 is 252.09 (unsuitable for drinking), and metal parameters in terms of HPI analysis show that SS1 is 26.43 (good), SS2 is 2345.84 (unsuitable for drinking), SS3 is 26.43 (good), and SS4 is 12.64 (excellent). The conclusions from these four research areas indicate that the status of water quality, according to the HPI is unsuitable for drinking, however, indications of heavy metals in 2 areas are still tolerable, namely good and excellent. The decline in water quality in the research area is caused by domestic and industrial waste polluting the waters. In conclusion, this river area requires further management from the collaboration of various stakeholders.Keywords:Water QualityHeavy MetalCoastalWatershed
Analysis of water quality in watershed using heavy metal pollution index Ujianti, Rizky Muliani Dwi; Novita, Mega; Burhanuddin, Aan; Muflihati, Iffah; Agung, Lukman Anugrah; Ingsan, Roies Nur; Wafa, Alfan Najihil; Anggraeni, Cerly Nurlita; Muzakki, Tsaqif
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.35680

Abstract

The quality of rivers and coastal is gradually deteriorating along with rapid population and socio-economic growth in the watershed to the estuary. Sampling was conducted in Semarang city rivers and Demak district rivers, Central Java Province, Indonesia, at four different stations according to geography and designation: river basins, estuaries, and rivers affected by industrial and domestic waste. Research time is August - October 2023 during the dry season. The research method uses descriptive analysis to determine the variables to be studied based on the research results in the field. River and coastal pollution levels are measured using the Heavy Metal Pollution Index method, with several water quality parameters measured, such as BOD, COD, Ammonia, TDS, TSS, and Total Coliform. In contrast, the heavy metal parameters measured are Cd, Ni, Zn, Cu, and Pb. The heavy metals and water quality parameters analyzed guided by Government Regulation of the Republic of Indonesia Number 22 of 2021 class 2. Water quality and heavy metal analysis use the Heavy Metals Pollution Index (HPI). HPI is an assessment method that shows the influence of individual heavy metal compounds on overall water quality. The results show that the status of non-metal water quality in terms of HPI analysis shows that Sampling Station (SS) 1 is 224.30 (unsuitable for drinking), SS 2 is 645.98 (unsuitable for drinking), SS 3 is 320.09 (unsuitable for drinking), SS 4 is 252.09 (unsuitable for drinking), and metal parameters in terms of HPI analysis show that SS1 is 26.43 (good), SS2 is 2345.84 (unsuitable for drinking), SS3 is 26.43 (good), and SS4 is 12.64 (excellent). The conclusions from these four research areas indicate that the status of water quality, according to the HPI is unsuitable for drinking, however, indications of heavy metals in 2 areas are still tolerable, namely good and excellent. The decline in water quality in the research area is caused by domestic and industrial waste polluting the waters. In conclusion, this river area requires further management from the collaboration of various stakeholders.Keywords:Water QualityHeavy MetalCoastalWatershed
Perbedaan Lama Sakarifikasi dan Konsentrasi Substrat Pada Pembuatan Gula Cair Dari Pisang Tanduk Lestari, Ayu Wiji; Muflihati, Iffah; Mariska, Nurul Putri; Anggraeni, Cerly Nurlita; Affandi, Arief Rakhman; Fitriyana, Vicha; Nurdyansyah, Fafa
Jambura Journal of Chemistry Vol 7, No 2 (2025): August
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jambchem.v7i2.27600

Abstract

Gula cair banyak dipilih oleh industri makanan dan minuman karena kelebihannya yang tidak mudah mengkristal, lebih praktis, dan mudah dilarutkan, serta dapat mempercantik tampilan produk seperti pada industri roti. Pisang, khususnya pisang tanduk, dengan kandungan karbohidrat dan pati yang tinggi memiliki potensi yang besar untuk dikembangkan menjadi gula cair melalui proses hidrolisis enzimatik dengan menggunakan enzim α-amilase dan glukoamilase. Tujuan penelitian ini yaitu untuk mengkaji pengaruh kondisi proses konsentrasi substrat dan lama proses sakarifikasi terhadap pembuatan gula cair dari pisang tanduk dengan menggunakan metode enzimatis dengan penambahan enzim glukoamilase pada proses sakarifikasi. Penelitian ini dilakukan dengan metode Rancangan Acak Lengkap (RAL) model faktorial dengan 2 faktor. Faktor pertama adalah waktu sakarifikasi (6 jam dan 8 jam) dan faktor kedua adalah konsentrasi substrat (15%, 20% dan 25%). Penggunaan waktu sakarifikasi dan jumlah konsentrasi substrat berpengaruh secara signifikan terhadap viskositas, kadar abu, dan intensitas warna. Perlakuan terbaik adalah waktu sakarifikasi selama 8 jam dan konsentrasi substrat pati 25% (b/v) yang menghasilkan nilai viskositas sebesar 41,50 mPa.s, nilai kadar abu 0,35%, dan nilai L*, a*, dan b* berturut-turut sebesar 47,27±0,12cd, 0,30±0,03a, dan 2,25±0,03b.
Co-Authors Arief Rakhman Affandi Burhanuddin, Aan fafa nurdyansyah, fafa Fitriyana, Vicha Iffah Muflihati, Iffah Ingsan, Roies Nur Lestari, Ayu Wiji Lukman Anugrah Agung Mariska, Nurul Putri Mega Novita Muzakki, Tsaqif Ujianti, Rizky Muliani Dwi Wafa, Alfan Najihil