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Rock Formation Acid Mine Drainage in Epithermal Gold Mineralization, Pandeglang, Banten Province Dudi Nasrudin Usman; Sri Widayati; Sriyanti Sriyanti; Era Setiawan
Journal of Geoscience, Engineering, Environment, and Technology Vol. 4 No. 4 (2019): JGEET Vol 04 No 04: December 2019
Publisher : UIR PRESS

Mine acid water is acidic water and contains iron and sulfate, which is formed under natural conditions when geological strata containing pyrites are exposed to an oxidizing atmosphere or environment. One of the impacts of the mineralization zone where there is a mining process is the potential for the formation of acid mine drainage, especially in the Cibaliung gold mineralization area and its surroundings, Pandeglang Regency, Banten Province. Acid-forming sulfide minerals include pyrite (FeS2), headquarters (FeS2), picoliters (FexSx), calcocytes (CuS), covellite (CuS), chalcopyrite (CuFeS2), molybdenite (MoS), mulenite (NiS), chalocytes (CuS), covellite (CuS), chalcopyrite (CuFeS2), molybdenite (MoS), mulenite (NiS), chalocytes (CuS), covellite (CuS), chalcopyrite (CuFeS2), molybdenite (MoS), mulenite (NiS), galena (PbS) ) and sphalerite (ZnS). Of all these minerals, pyrite is the most dominant sulfide in acid formation. Alkaline mine water (alkaline mine drainage) is mine water that has an acidity level (pH) of 6 or more, containing alkalinity but still containing dissolved metals that can produce acids. The quality of mine water, acid or alkali, depends on the presence or absence of acid mineral content (sulfides) and alkaline materials in the geological strata. Acid water formation tends to be more intensive in mining areas. This can be prevented by avoiding exposure to sulfide-containing materials in the free air. Acid-forming sulfide minerals include pyrite (FeS2), headquarters (FeS2), picoliters (FexSx), calcocytes (CuS), covellite (CuS), chalcopyrite (CuFeS2), molybdenite (MoS), mulenite (NiS), chalocytes (CuS), covellite (CuS), chalcopyrite (CuFeS2), molybdenite (MoS), mulenite (NiS), chalocytes (CuS), covellite (CuS), chalcopyrite (CuFeS2), molybdenite (MoS), mulenite (NiS), galena (PbS) ) and sphalerite (ZnS). Of all these minerals, pyrite is the most dominant sulfide in acid formation. Formation of potential acidic water also occurs in tailings which are residues/processing residues containing sulfide minerals. The formation of acid mine drainage does not always develop in every sulfide-ore mining. In certain types of ore deposits, there are neutralizing agents which prevent the formation of acid mine drainage.

PENERAPAN METODE EKSPERIMEN DALAM PENGEMBANGAN ASPEK KOGNITIF ANAK USIA DINI Eka Saptaning Pratiwi; Sriyanti Sriyanti
Al-ATHFAL: Jurnal Pendidikan Anak Vol. 2 No. 2 (2021): Desember
Publisher : LPPM STAI Muhammadiyah Probolinggo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46773/al-athfal.v2i2.404

Penelitian ini bertujuan untuk mendapatkan gambaran penerapan metode eksperimen dalam pengembangan kognitif anak usia dini. Peneltian ini menggunakan metode deskriptif kualitatif. Sumber data diperoleh dengan observasi, wawancara, dan dokumentasi di kelompok B TK Dharma Wanita Balenrejo Kecamatan Balen, Bojonegoro. Hasil penelitian menunjukkan bahwa penerapan metode eksperimen dalam pengembangan kognitif anak usia dini menjadikan anak mampu menunjukkan aktivitas yang eksploratif dan menyelidik. Hal tersebut sesuai dengan hasil observasi ketika salah satu peserta didik mampu melakukan kegiatan sendiri dan terlibat aktif dalam kegiatan, serta antusias dalam melakukan kegiatan yang di berikan dan mampu mengungkapkan tentang hasil yang di dapatkan dari kegiatan tersebut. Hal ini menunjukan bahwa kemampuan kognitif anak dalam menunjukkan aktiivitas yang eksploratif dan menyelidik dapat berkembang sesuai yang di harapkan.Kata Kunci : Pengembangan Kognitif, PAUD, Anak Usia Dini, Metode Eksperimen

IMPLEMENTASI PENDIDIKAN KARAKTER MELALUI METODE BERMAIN PERAN DI BA NURUL HIDAYAH SUMBERAGUNG KEPOHBARU BOJONEGORO Sriyanti Sriyanti; Eka Saptaning Pratiwi
Al-ATHFAL: Jurnal Pendidikan Anak Vol. 3 No. 1 (2022): Juli
Publisher : LPPM STAI Muhammadiyah Probolinggo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46773/al-athfal.v3i1.406

Penelitian ini bertujuan untuk mengetahui implementasi pendidikan karakter melalui metode bermain peran di BA Nurul Hidayah, menjelaskan tiga hal : (1) Penerapan Metode Bermain Peran, (2) Perkembangan Pendidikan Karakter (3) Penilaian Perkembangan Karakter Anak. Penelitian deskripstif kualitatif ini menggunakan pendekatan (field research). Sumber data diperoleh melalui observasi, wawancara, dan dokumentasi. Hasil penelitian menunjukkan: Pertama Kegiatan Bermain Peran tema profesi: (1) Guru menjelaskan aturan Main, (2) Guru berdialog tentang alat main (3) Guru membagi kelompok peran, (4) Guru mengabsen anak (5) Guru mendampingi bermain peran, (6) Anak bermain sesuai tempatnya. Kedua Pendidikan karakter melalui metode bermain peran: (1) Anak sabar menunggu giliran, (2) Anak tidak berebut (3) Anak meminta maaf saat melakukan kesalahan, (4) Anak menaati aturan main, (5) Anak membereskan mainan, (6) Anak bekerja sama dalam bermain. Ketiga penilaian perkembangan pendidikan karakter anak yang Belum Berkembang(0), Mulai Berkembang (4), Berkembang Sesuai Harapan (9), Berkembang Sangat Baik (6).Kata Kunci : Pendidikan Karakter, Metode Bermain Peran, Anak Usia Dini.

Pengendalian Dan Pengelolaan Lingkungan Hidup Sriyanti Sriyanti
Jurnal Bintang Pendidikan Indonesia Vol 1 No 2 (2023): Mei: Jurnal Bintang Pendidikan Indonesia
Publisher : Pusat Riset dan Inovasi Nasional

Indonesia, Indonesia is a nation of law that uses a rule of law country (rechtstaat) concept. The concept of rule of law Indonesia set forth in its Constitution, the 1945 Constitution, Article 1 paragraph (3). There is an important element of democracy stated on the Constitution, namely the protection of human rights, that every citizen has the right to enjoy it. One of the rights protected in the Constitution is right to access a good and healthy living environment. For this, the environment needs to be preserved and function through administrative law enforcement. The study uses normative juridical approach with descriptive-analytics, which describes the norms and associated with theories, and opinions of legal experts. The development of a democratic nations of law can be seen from the aspect of law enforcement in particular with environmental administration. In Indonesia, it can be reviewed through the theory of organic states and the theory of pluralist states. Based on the theory of an organic state and looking at the aspects of environmental administration law enforcement in Indonesia, the state has regulated the enforcement of environmental administrative sanctions whereby the state can regulate every activity and/or business in the environmental issues. Therefore, the pluralist state theory recognized a variety of diverse interests in society that the state has accommodated all citizens rights to a good and healthy environment through pro-environment government policies

The Best Practice Sentra Eksplorasi Bahan Alam Dalam Meningkatkan Kreativtas Anak Sriyanti Sriyanti; Novi Dyah Ayu Putri
Hadlonah: Jurnal Pendidikan dan Pengasuhan Anak Vol 4 No 1 (2023): Hadlonah : Jurnal Pendidikan dan Pengasuhan Anak
Publisher : Program Studi Pendidikan Islam Anak Usia Dini Fakultas Tarbiyah UI BBC

Show Abstract | Download Original | Original Source | Check in Google Scholar

Penelitian ini bertujuan untuk menggambarkan peningkatan kreativitas anak usia 3-4 tahun melalui kegiatan sentra ekspolrasi dengan menggunakan media bahan alam. Penelitian ini dilaksanakan di KB Islam Terpadu Permata Hati Bojonegoro. Metode yang digunakan adalah penelitian tindakan yang dilakukan melalui dua siklus yang terdiri atas perencanaan, tindakan, pengamatan, dan refleksi. Subjek penelitian adalah anak KB Islam Terpadu Permata Hati Bojonegoro yang mempunyai masalah pada kreativitas. Berdasarkan persentase ketercapaian hasil penelitian ini, maka dapat dinyatakan bahwa kegiatan sentra eksplorasi dengan menggunaan media bahan alam dapat meningkatkan kreativitas anak usia 3-4 tahun. Kata Kunci: Eksplorasi; bahan alam; kreativitas;

Pengendalian Dan Pengelolaan Lingkungan Hidup Sriyanti Sriyanti
Jurnal Bintang Pendidikan Indonesia Vol. 1 No. 2 (2023): Mei: Jurnal Bintang Pendidikan Indonesia
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jubpi.v1i2.1327

Indonesia, Indonesia is a nation of law that uses a rule of law country (rechtstaat) concept. The concept of rule of law Indonesia set forth in its Constitution, the 1945 Constitution, Article 1 paragraph (3). There is an important element of democracy stated on the Constitution, namely the protection of human rights, that every citizen has the right to enjoy it. One of the rights protected in the Constitution is right to access a good and healthy living environment. For this, the environment needs to be preserved and function through administrative law enforcement. The study uses normative juridical approach with descriptive-analytics, which describes the norms and associated with theories, and opinions of legal experts. The development of a democratic nations of law can be seen from the aspect of law enforcement in particular with environmental administration. In Indonesia, it can be reviewed through the theory of organic states and the theory of pluralist states. Based on the theory of an organic state and looking at the aspects of environmental administration law enforcement in Indonesia, the state has regulated the enforcement of environmental administrative sanctions whereby the state can regulate every activity and/or business in the environmental issues. Therefore, the pluralist state theory recognized a variety of diverse interests in society that the state has accommodated all citizens rights to a good and healthy environment through pro-environment government policies

Best Practice Kemandirian Anak Usia Dini (Studi Implementasi 9 Pilar Karakter di Lembaga PAUD) Sriyanti Sriyanti; Rizka Aisyah
ALSYS Vol 6 No 1 (2026): ALSYS: Jurnal Keislaman dan Ilmu Pendidikan
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/alsys.v6i1.8957

Independence is a crucial asset that children must develop from an early age to face the challenges of the digital era, yet studies that specifically evaluate the success of the 9 Pilar Karakter program of the Indonesian Heritage Foundation (IHF) in fostering independence among young children remain limited. This study aimed to examine the implementation and effectiveness of the 9 Pilar Karakter program in shaping independence in early childhood at BA Islamiyah Pesen, Kanor Subdistrict, Bojonegoro. A qualitative case study approach was employed with 14 children in Group A as the research subjects. Data were collected through observation, interviews, and documentation, and were analyzed using the interactive Miles and Huberman model, which includes data reduction, data display, and conclusion drawing. The findings show that implementation of the program through three main activities—knowing feeling, tell a story, and acting feeling—contributes to transforming children into more independent and self-confident individuals in their daily activities and learning context. These results affirm that the 9 Pilar Karakter program plays a strategic role in strengthening independence and socio-emotional character in early childhood. The implications of this study highlight the importance of optimizing the implementation of the 9 Pilar Karakter program as a foundation for children to navigate learning processes at subsequent educational levels as well as in everyday life.

Evaluasi Kinerja Jig Sekunder pada KIP Timah Duang Dee 4 Farras Sava Bagaskara; Elfida Moralista; Sriyanti
Bandung Conference Series: Mining Engineering 89 - 96
Publisher : UNISBA Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/bcsme.v6i2.24417

Abstract. At the Mitra Duang Dee 4 Tin Production Dredger (KIP) operating in the Kelambui Offshore Area, South Bangka Regency, Bangka Belitung Islands Province, the stroke length and stroke frequency of the secondary jig are presumed to be inconsistent with the company's Standard Operating Procedures (SOP). This condition is expected to result in the recovery of the secondary jig not meeting the company's required standard. Therefore, this study aims to determine the characteristics of the processed feed, evaluate the performance of the secondary jig, and identify measures to optimize its performance in terms of recovery. This study employed a quantitative research method based on 24 tests conducted over three consecutive days on the secondary jig. The analyzed parameters included feed weight, concentrate weight, jig stroke frequency, jig stroke length, and the tin (Sn) grades of the feed and concentrate. The performance of the secondary jig was evaluated using two main indicators, namely recovery and concentrate Sn grade, which were then compared with the company's established standards. The results showed that the Sn grade of the concentrate ranged from 71.12% to 74.98%, exceeding the company's minimum standard of 20%. In contrast, the recovery ranged from only 31.55% to 57.47%, which remained significantly below the company's target of 96%. Therefore, adjustments to the operating parameters of the secondary jig, particularly the stroke length and stroke frequency, are required to comply with the company's Standard Operating Procedures and improve both recovery and the overall performance of the secondary jig. Abstrak. Pada Kapal Isap Produksi (KIP) timah Mitra Duang Dee 4 di Laut Kelambui, Kabupaten Bangka Selatan, Provinsi Kepulauan Bangka Belitung, diduga panjang dan jumlah pukulan pada alat jig sekunder belum sesuai dengan standar operasional prosedur perusahaan. Kondisi tersebut diperkirakan menyebabkan nilai recovery jig sekunder belum mencapai standar perusahaan. Penelitian ini bertujuan mengetahui karakteristik feed yang diolah, mengevaluasi kinerja, serta mengoptimalkan kinerja alat jig sekunder terhadap nilai recovery. Metode penelitian menggunakan analisis kuantitatif berdasarkan 24 kali pengujian selama 3 hari pada alat jig sekunder. Parameter yang dianalisis meliputi berat feed, berat konsentrat, jumlah pukulan, panjang pukulan, serta kadar Sn pada feed dan konsentrat. Kinerja jig dievaluasi berdasarkan dua parameter utama, yaitu nilai recovery dan kadar Sn konsentrat, kemudian dibandingkan dengan standar yang ditetapkan perusahaan. Hasil penelitian menunjukkan kadar Sn konsentrat berkisar antara 71,12%–74,98%, sehingga telah melampaui standar perusahaan sebesar 20%. Sebaliknya, nilai recovery hanya mencapai 31,55%–57,47%, masih jauh di bawah standar perusahaan sebesar 96%. Oleh karena itu, diperlukan penyesuaian kembali variabel operasi jig sekunder, terutama panjang dan jumlah pukulan, agar sesuai dengan standar operasional prosedur sehingga nilai recovery dan kinerja alat jig sekunder dapat ditingkatkan.

Analisis Kinerja Pompa Tanah terhadap Instalasi Pencucian pada Kapal Isap Produksi 12 PT Timah Tbk. di Laut Air Kantung Adista Mauli; Sriyanti; Rahman Ardhiansyah
Bandung Conference Series: Mining Engineering 151 - 158
Publisher : UNISBA Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/bcsme.v6i2.25155

Abstract. The Production Suction Dredger (PSD) is the primary equipment used in offshore tin mining operations, integrating excavation, slurry transportation, and mineral processing. The performance of the soil pump plays a crucial role in maintaining slurry flow to the washing plant, thereby affecting operational efficiency. This study aims to analyze the performance of the soil pump in relation to the washing plant at Production Suction Dredger 12 (PSD 12) operating in Air Kantung Waters, Bangka Regency. A quantitative approach was employed by analyzing technical parameters, including material transport velocity, slurry discharge, pump head, suction power, pump rotational speed (RPM), and earthmoving rate based on field observations, pump specifications, and drilling profile data. The results indicate that the actual earthmoving rate exceeded the company's production target of 200 m³/h. The required pump speed was calculated at 445.420 RPM, while the actual operating speed reached 470.514 RPM, resulting in a difference of 25.094 RPM. This condition indicates that the pump operated above its optimum capacity and may produce slurry discharge exceeding the washing plant capacity. Therefore, optimizing pump RPM and suction power according to mining conditions is essential to improve operational efficiency and maintain stable production performance. Abstrak. Kapal Isap Produksi (KIP) merupakan sarana utama dalam penambangan timah lepas pantai yang mengintegrasikan proses penggalian, pengangkutan, dan pencucian material. Kinerja pompa tanah berperan penting dalam menjaga kontinuitas aliran slurry menuju instalasi pencucian sehingga memengaruhi efisiensi produksi. Penelitian ini bertujuan menganalisis kinerja pompa tanah terhadap instalasi pencucian pada KIP 12 yang beroperasi di Laut Air Kantung, Kabupaten Bangka. Metode penelitian menggunakan pendekatan kuantitatif dengan menganalisis kecepatan angkut material, debit angkut material, head pompa, daya isap pompa, putaran pompa (RPM), dan laju perpindahan tanah berdasarkan data lapangan, spesifikasi pompa, serta profil bor. Hasil penelitian menunjukkan bahwa laju perpindahan tanah aktual telah melampaui target perusahaan sebesar 200 m³/jam. Kebutuhan putaran pompa sebesar 445,420 RPM, sedangkan putaran aktual mencapai 470,514 RPM, sehingga terdapat selisih 25,094 RPM. Kondisi tersebut menunjukkan pompa masih mampu memenuhi kebutuhan pengangkutan material, namun beroperasi di atas kondisi optimum sehingga berpotensi menghasilkan debit slurry yang melebihi kapasitas instalasi pencucian. Oleh karena itu, diperlukan penyesuaian RPM dan daya isap pompa agar sesuai dengan karakteristik lapisan penambangan dan kapasitas instalasi pencucian untuk meningkatkan efisiensi operasi.

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