Articles
PERBANDINGAN BAKTERI Pseudomonas putida DAN Bacillus cereus DALAM MENURUNKAN KADAR COD BOD PADA LIMBAH CAIR PABRIK KELAPA SAWIT
Riwanda, Ayu;
Mayasari, Ulfayani;
Rasyidah, Rasyidah
Jurnal Biogenerasi Vol. 9 No. 1 (2024): Terbit volume 9 nomor 1 tahun 2024
Publisher : Universitas Cokroaminoto Palopo
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DOI: 10.30605/biogenerasi.v9i1.3248
Limbah cair kelapa sawit memiliki potensi sebagai bahan pencemar lingkungan karena memiliki kandungan Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD) dan padatan tersuspensi yang tinggi sehingga menyebabkan terjadinya pencemaran yang dapat menurunkan kualitas suatu perairan. Penelitian ini bertujuan untuk Untuk Mengetahui Penurunan Kadar Chemical Oxygen Demand (COD) dan Biochemical Oxygen Demand (BOD) dengan Penambahan Bakteri Pseudomonas putida dan Bakteri Bacillus cereus Pada Limbah Cair Pabrik Kelapa Sawit. Analisis data pada penelitian ini menggunakan data deskriptif kuantitatif. Penelitian kuantitatif dilakukan dengan menguji kadar COD dan BOD menggunakan Metode SNI-6989.2-2019.Hasil Penelitian menunjukkan bahwa Penambahan bakteri Pseudomonas putida mampu menurunkan Kadar COD tertinggi sebesar 39.050mg/l dengan persentase penurunan 49.44% dibandingkan bakteri Bacillus cereus hanya mampu menurunkan kadar COD Sebesar 39.825mg/l dengan persentase penurunan 48.44%. Dan hasil penelitian menunjukkan Penambahan bakteri Pseudomonas putida mampu menurunkan Kadar BOD tertinggi sebesar 414.5 mg/l dengan persentase penurunan 97.92% dibandingkan bakteri Bacillus cereus hanya mampu menurunkan kadar BOD Sebesar 503.5 mg/l dengan persentase penurunan 97.48% Kata Kunci: Bacillus cereus, BOD, COD, Limbah cair pabrik kelapa sawit, Pseudomonas putida
BIOREMEDIASI KROMIUM (Cr) MENGGUNAKAN BAKTERI INDIGENOUS DARI LIMBAH CAIR DI SUNGAI DELI MEDAN
Sandi, Najmi Maulidina El;
Rasyidah, Rasyidah;
Mayasari, Ulfayani
Jurnal Biogenerasi Vol. 9 No. 1 (2024): Terbit volume 9 nomor 1 tahun 2024
Publisher : Universitas Cokroaminoto Palopo
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DOI: 10.30605/biogenerasi.v9i1.3656
Kerusakan lingkungan dan penurunan kualitas air pada air sungai, danau dan waduk dapat terjadi akibat adanya pembuangan limbah cair yang bersumber dari kegiatan domestik dan industrri. Salah satu pencemaran logam berat pada limbah cair di sungai yaitu kromium (Cr). Tujuan dari penelitian ini untuk mengetahui isolat bakteri indigenous yang berasal dari air Sungai Deli Medan yang memiliki kemampuan mereduksi kromium (Cr) dan mengetahui potensinya sebagai agen bioremediasi. Penelitian ini merupakan jenis penelitian eksperimental dengan menggunakan rancangan deskriptif kualitatif. Hasil penelitian memperlihatkan bahwa dari 14 isolat bakteri hasil isolasi bakteri terdapat 7 isolat bakteri yang memiliki kemampuan dalam mereduksi kadar logam berat kromium (Cr) dan 3 isolat bakteri dengan kemampuan mereduksi kadar logam berat kromium (Cr) yaitu isolat BAI 08 dari genus Pseudomonas (94,03%), isolat BAI 10 dari genus Micrococcus (96,43%), dan isolat BAI 14 dari genus Bacillus (97,39%). Bakteri indigenous yang berasal dari air Sungai Deli Medan mampu menjadi agen bioremediasi pada logam berat kromium (Cr). Kata Kunci: Bakteri indigenous, Kromium (Cr), Bioremediasi, Sungai Deli Medan
PENGUJIAN KADAR BOD, COD DAN ISOLASI BAKTERI HASIL REMEDIASI AIR LIMBAH LINDI DENGAN MENGGUNAKAN EKOENZIM KULIT BUAH PEPAYA (Carica papaya L.)
Siregar, Amira Falah;
Rasyidah, Rasyidah;
Nasution, Rizki Amelia
Jurnal Biogenerasi Vol. 9 No. 1 (2024): Terbit volume 9 nomor 1 tahun 2024
Publisher : Universitas Cokroaminoto Palopo
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DOI: 10.30605/biogenerasi.v9i1.3673
Lindi (leachate) merupakan cairan yang merembes melalui tumpukan sampah dengan membawa materi terlarut atau tersuspensi terutama hasil proses dekomposisi materi sampah. Tujuan dari penelitian ini adalah untuk mengetahui penurunan kadar Biology Oxygen Demand (BOD) dan Chemical Oxygen Demand (COD) pada limbah air lindi dengan menggunakan ekoenzim kulit buah pepaya (Carica papaya L.) dan jenis bakteri sebelum dan sesudah pemberian ekoenzim. Meltodel yang digunakan pada pelnellitian ini belrupa meltodel kuantitatif, yang telrdiri dari kontrol dan pemberian ekoenzim 10% delngan 3 kali pelngulangan pada seltiap pelrlakuan. Hasil penelitian menunjukkan bahwa penggunaan ekoenzim dengan konsentrasi 10% pada proses remediasi limbah air lindi belum memenuhi baku mutu, dengan nilai rata-rata BOD sebesar 538 mg/L dan nilai rata-rata COD sebesar 1778 mg/L setelah remediasi 10 hari. Oleh karena itu, perlu penggunaan ekoenzim dengan konsentrasi dibawah 10% dan waktu remediasi yang lebih lama. Hasil dari identifikasi bakteri terdapat 2 jenis bakteri sebelum pemberian ekoenzim yaitu Micrococcus sp., Proteus sp., dan sesudah pemberian ekoenzim terdapat 3 jenis bakteri yaitu Pseudomonas sp., Shigella sp., dan Bacillus sp. Kata Kunci : Air Lindi, BOD, COD, Ekoenzim
The Relationship Between Working Time and Fatigue of Online Motorcycle Taxi Drivers in Medan
Ramadanil, Ramadanil; Susilawati, Susilawati;
Hasibuan, Rapotan
Journal La Medihealtico Vol. 5 No. 4 (2024): Journal La Medihealtico
Publisher : Newinera Publisher
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DOI: 10.37899/journallamedihealtico.v5i4.1496
A common problem among online motorcycle taxi drivers that can negatively affect their health and performance is fatigue. One factor that can reduce the level of fatigue is long working hours. Excessive working time can increase work errors due to increased fatigue and reduced sleep hours. This study aims to determine the effect of working time on fatigue of online motorcycle taxi drivers in the field of struggle. This research is quantitative using observational analytic method with cross sectional approach with univariate and bivariate analysis using chi-square test. The sampling technique with total sampling of 97 online motorcycle taxi riders. This study shows that there is an effect of working time with fatigue in online motorcycle taxi drivers in Medan city with a significance value of 0.00 <0.05. this study is that there is a relationship between the effect of working time and fatigue of online motorcycle taxi drivers in the city of Medan and for online motorcycle taxi drivers in the city of Medan to pay more attention to conditions while working, and not to work late at night. Because it can cause fatigue and worsen their sleep quality so as to develop a degree of health and safety in driving.
PENGARUH LATIHAN PERMAINAN TARGET TERHADAP AKURASI SHOOTING PEMAIN FUTSAL EKSTRAKURIKULER SMA N 2 KOTA AGUNG
Prayoga, Teja;
Arifai, Arifai
Journal of Arts and Education Vol 3, No 2 (2024): Volume 3, Nomor 2, Januari 2024
Publisher : Faculty of Arts and Education
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DOI: 10.33365/jae.v3i2.476
Penelitian ini bertujuan untuk mengetahui pengaruh latihan permainan target terhadap kemampuan shooting pemain futsal ekstrakurikuler di sma n 2 kota agung. Metode penelitian ini yaitu eksperimen yang menggunakan desain penelitian one-group pretest-posttest design. Instrumen pada penelitian ini menggunakan soccer dribble test 3 kali percobaan (repetisi). Populasi yang digunakan dalam penelitian ini pemain futsal ekstrakurikuler di sma n 2 kota agung yang berjumlah 20 sisawa laki-laki dan teknik pengambilan sampel menggunakan sampling Jenuh sehingga sampel yang digunakan seluruh sampel yaitu sebanyak 20. Hasil penelitian menunjukkan (1) Terdapat pengaruh latihan circuit training terhadap kemampuan shooting pemain futsal ekstrakurikuler di sma n 2 kota agung dengan nilai sig. yaitu 0,000 0,05. (2) Mengetahui seberapa besar pengaruh latihan circuit training terhadap kemampuan shooting pemain futsal ekstrakurikuler di sma n 2 kota agung dengan hasil uji t bisa dilihat bahwa Thitung lebih besar dari Ttabel (104.702 1.729) dan signifikan p sebesar (0.000 0.05) hasil ini menunjukkan bahwa terletak perbedaan yang signifikan antara pretest dan posttest dri shooting pemain futsal ekstrakurikuler di sma n 2 kota agung. Dari data pretest terletak rata-rata 22,3265 dan posttest rata-rata 22.2075, dengan begitu mununjukkan bahwa permainan target mampu meningkatkan kemampuan shooting pemain futsal ekstrakurikuler di sma n 2 kota agung dilihat berdasarkan perbedaan rata-rata yaitu sebesar 1.5 detik.
Kajian Hukum Terhadap Peran Perusahaan Outsourcing Dalam Peningkatan Kesejahteraan Tenaga Kerja Di Indonesia
Jeni Pratista, Mawar;
Zainuddin
UNES Law Review Vol. 6 No. 2 (2023): UNES LAW REVIEW (Desember 2023)
Publisher : LPPM Universitas Ekasakti Padang
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DOI: 10.31933/unesrev.v6i2.1653
Outsourcing practices have become an integral part of the labor market in Indonesia, with outsourcing companies playing a significant role in providing labor for various industrial sectors. This legal study aims to evaluate the role of outsourcing companies in enhancing the welfare of laborers in Indonesia. Through a juridical analysis approach, this study highlights the challenges and obstacles faced in the implementation of outsourcing practices, including legal uncertainties regarding employment relationships, the rights of outsourced workers, and adequate legal protection. The role of outsourcing companies in improving the welfare of laborers in Indonesia has significant implications for the protection of workers' rights, job security, and economic well-being. This study also emphasizes the decision of the Constitutional Court emphasizing the need for better legal protection for outsourced workers, followed by regulatory measures issued by the government. However, the implementation of these regulations still faces challenges in law enforcement and ensuring compliance by outsourcing companies.
IMPLEMENTASI PROGRAM KAMPUS MENGAJAR DALAM MENINGKATKAN LITERASI DAN NUMERASI MURID SDN KIP MACCINI KOTA MAKASSAR
Alvina, Nugrah;
Amriani, Amriani;
Nasir, Nasir
JURNAL PENA Vol 11, No 1 (2024)
Publisher : Universitas Muhammadiyah Makassar
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DOI: 10.26618/jp.v11i1.14433
Kampus Mengajar merupakan kanal pembelajaran yang memberikan kesempatan kepada mahasiswa untuk belajar di luar kampus selama satu semester guna melatih kemampuan menyelesaikan permasalahan yang kompleks dengan menjadi mitra guru untuk berinovasi dalam pembelajaran, pengembangan strategi, dan model pembelajaran yang kreatif, inovatif, dan menyenangkan. Tujuan penelitian ini untuk mengetahui Implementasi Program Kampus Mengajar Dalam Meningkatkan Literasi Dan Numerasi Murid Sdn Kip Maccini, berdasarkan hasil penelitian ada beberapa faktor yang mendunkung literasi dan numerasi siswa di SDN KIP Maccini yang dimana dari kesepuluh informan berpandangan bahwa dengan adanya program kampus mengajar yang bertujaun meningkatkan literasi dan numerasi siswa SDN KIP Maccini
Pengaruh Tingkat Pendidikan, Upah, dan Migrasi Terhadap Pengangguran di Kota Makassar
Juardi, Juardi;
Arifai, Arifai;
Umar, Mustofa
OIKONOMIKA : Jurnal Kajian Ekonomi dan Keuangan Syariah Vol. 4 No. 2 (2023): OIKONOMIKA : Jurnal Kajian Ekonomi dan Keuangan Syariah
Publisher : Program Studi Ekonomi Syariah, Fakultas Ekonomi dan Bisnis Islam, IAIN Fattahul Muluk Papua
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DOI: 10.53491/oikonomika.v4i2.961
This research aims to find out that the problem of unemployment does not only affect economic life. Apart from that, the problem of unemployment is also closely related to the educational and social fields. In the current era, not only people with low education are unemployed, but more and more people with higher education are also unemployed. So researchers researched to determine the influence of education level, wages, and incoming migration on unemployment in Makassar City. This research uses quantitative research. This research uses quantitative research and the data used is secondary data, where secondary data is data contained in the media such as data from the central statistical agency and from online news and data in the form of complete data recording reports. Data was obtained from the Central Statistics Agency (BPS) and the population and civil registration service in the period 2007-2022. The data analysis method used in this research is the multiple linear regression method using the Statistical Program For Social (SPSS) software method. The estimation results show that: The education level variable has an effect on unemployment in Makassar City, the Wage variable has no effect in Makassar City and the Incoming Migration variable has no effect on unemployment in Makassar City
FENOMENA SOSIAL EKONOMI PENYINTAS KELURAHAN LERE PASCA GEMPA DAN TSUNAMI
Hendra, Hendra;
Laurang, Linda
Studi Budaya Nusantara Vol. 7 No. 2 (2023): Studi Budaya Nusantara
Publisher : Studi Budaya Nusantara
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DOI: 10.21776/ub.sbn.2022.007.02.02
This study explains how people live their lives by activating their remaining potential to survive the crisis that suddenly comes due to natural disasters, and definitely changes their lives. This study develops understanding from the perspective of adaptation and strategies that are unique to humans as cultural creatures. However, this study develops deeper by revealing the cultural acceleration of humans using/activating their potential in overcoming the crisis conditions that surrounded them at that time. Therefore, this study site is placed in community life after a natural disaster in Lere Village, West Palu District, Palu City. This study uses a case study approach by highlighting the post-tsunami phenomenon which only took place 1 year after 28 September 2018, with the aim of capturing people's memories and intentions in living life as survivors, which is still relatively new and well recorded. The results of the study show that the crisis faced by the driving community is a natural disaster, however, the way the community understands and develops its actions is very diverse and polyphonic. However, the cultural acceleration that is developed relies heavily on social, cultural conditions and material availability. This means that even though people are required/pressured to experience sudden and urgent conditions, they will continue to develop accelerated actions based on the conditions and phenomena they are living at that time, as a form of negotiation and compromise regarding their lives.
PERENCANAAN OBJEK WISATA ALAM DAN TANTANGAN DALAM PENYEDIAAN INFRASTRUKTUR TRANSPORTASI
Eka Putra, Kaspan;
Zainuddin
Jurnal Koridor Vol. 8 No. 1 (2017): Jurnal Koridor
Publisher : Talenta Publisher
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DOI: 10.32734/koridor.v8i1.1326
Development of the tourist attractions are the leading sectors in encouraging the growth of development in the region. Each area that has a potential tourist attraction is planed and developed as a main destination that will be offered to tourists. This study analyzes the development planning of natural attractions and challenges in providing transport infrastructure. This study was conducted in Simalungun using primary data through observation of objects and explorative analyzes. The results showed there is a natural tourist attraction waterfall Tinggi Raja with huge potential, but constrained by the availability of transportation infrastructure that is very damaged. Simalungun government has not planned construction of the necessary infrastructure in the development of attractions.