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Kulit Salak Sebagai Biosorben Potensial Untuk Pengolahan Timbal(II) Dan Cadmium(II) Dalam Larutan Rahmiana Zein; Novrizaldi Wardana; Refilda Refilda; Hermansyah Aziz
Chimica et Natura Acta Vol 6, No 2 (2018)
Publisher : Departemen Kimia

Biosorben dari kulit salak (Salacca sumatrana) digunakan untuk mempelajari penyerapan Pb(II) dan Cd(II) dalam larutan dengan metode batch. Adsorpsi Pb(II) dan Cd(II) menggunakan kulit salak ini dipelajari pada variasi pH, konsentrasi adsorbat dan waktu kontak. Kondisi optimum penyerapan yang diperoleh pH 4 untuk Pb(II) dan 5 untuk Cd(II), konsentrasi adsorbat 1200 mg/L untuk Pb(II) dan 800 mg/L untuk Cd(II), waktu kontak 45 menit untuk Pb(II) dan 15 menit untuk Cd(II). Kapasitas penyerapan dari biosorben kulit salak sebesar 83,33 mg/g untuk Pb(II) dan 27,78 mg/g untuk Cd(II) dengan pola adsorpsi mengikuti isoterm Langmuir dengan koefisien determinasi 0,987 dan 0,937 dan data kinetika mengikuti model pseudo orde kedua. Konsentrasi Pb(II) dan Cd(II) sebelum dan setelah penyerapan ditentukan dengan Spektrometri Serapan Atom (SSA), karakterisasi kulit salak dilakukan dengan FTIR dan SEM. Adsorben kulit salak sangat baik digunakan untuk mengurangi kadar Pb(II) dan Cd(II) dalam larutan.

Kulit Salak Sebagai Biosorben Potensial Untuk Pengolahan Timbal(II) Dan Cadmium(II) Dalam Larutan Rahmiana Zein; Novrizaldi Wardana; Refilda Refilda; Hermansyah Aziz
Chimica et Natura Acta Vol 6, No 2 (2018)
Publisher : Departemen Kimia

Biosorben dari kulit salak (Salacca sumatrana) digunakan untuk mempelajari penyerapan Pb(II) dan Cd(II) dalam larutan dengan metode batch. Adsorpsi Pb(II) dan Cd(II) menggunakan kulit salak ini dipelajari pada variasi pH, konsentrasi adsorbat dan waktu kontak. Kondisi optimum penyerapan yang diperoleh pH 4 untuk Pb(II) dan 5 untuk Cd(II), konsentrasi adsorbat 1200 mg/L untuk Pb(II) dan 800 mg/L untuk Cd(II), waktu kontak 45 menit untuk Pb(II) dan 15 menit untuk Cd(II). Kapasitas penyerapan dari biosorben kulit salak sebesar 83,33 mg/g untuk Pb(II) dan 27,78 mg/g untuk Cd(II) dengan pola adsorpsi mengikuti isoterm Langmuir dengan koefisien determinasi 0,987 dan 0,937 dan data kinetika mengikuti model pseudo orde kedua. Konsentrasi Pb(II) dan Cd(II) sebelum dan setelah penyerapan ditentukan dengan Spektrometri Serapan Atom (SSA), karakterisasi kulit salak dilakukan dengan FTIR dan SEM. Adsorben kulit salak sangat baik digunakan untuk mengurangi kadar Pb(II) dan Cd(II) dalam larutan.

Budidaya pada Lahan Pekarangan Terbatas untuk Meningkatkan Pendapatan Keluarga Kelompok PKH Desa Stabat Lama Mulyana, Rachmat; Matondang, Zulkifli; Emilia, Esi; Darwin, Darwin; Rani, Cut Meuthia; Wardana, Novrizaldi; Hutria, Wahyu; Putri, Mita Dwi
Jurnal Abmas Negeri (JAGRI) Vol. 5 No. 2 (2024): Volume 5 Nomor 2 Desember 2024
Publisher : Sarana Ilmu Indonesia (salnesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36590/jagri.v5i2.1321

Desa Stabat Lama yang memiliki tingkat kepadatan 173,38 jiwa/km2 terklasifikasi sebagai desa swadaya dan merupakan desa terluas kedua di wilayah Kecamatan Wampu, dengan jumlah lahan non pertanian terbesar sekecamatan Wampu yaitu seluas 12,41 Km2 dari luas sebesar 33,09 Km2. Sebagian besar rumah masyarakat memiliki lahan pekarangan, namun tingkat pemanfaatan pekarangan rumah oleh masyarakat untuk fungsi konservasi dan peningkatan ekonomi masih rendah. Kegiatan ini bertujuan untuk: (a) meningkatkan wawasan pengetahuan masyarakat tentang potensi pekarangan rumah guna mensuplai kebutuhan pangan dan ekonomi keluarga, dan (b) meningkatkan keterampilan pada masyarakat dalam budidaya ikan dan sayuran pada lahan pekarangan. Metode yang digunakan metode ceramah dan demonstrasi melalui sosilisasi dan pelatihan. Kegiatan sosialisasi dikemas dalam bentuk: (a) penjajagan pengetahuan peserta; (b) penyuluhan tentang pemanfaatan pekarangan untuk ketahanan pangan dan gizi keluarga; (c) potensi pekarangan rumah sebagai lahan terbatas untuk fungsi ekonomi; dan (d) postes pengetahuan peserta pasca kegiatan. Sosialisasi yang dilaksanakan pada tanggal 3 Agustus 2024 di aula Desa Stabat Lama Kecamatan Wampu diikuti sebanyak 29 orang yang terdiri dari kelompok PKH dan Ibu-Ibu Darmawanita. Hasil menunjukkan bahwa secara umum, semua peserta sangat antusias mengikuti kegiatan sosialisasi. Simpulan kegiatan PKM berkontribusi terhadap peningkatan pengetahuan dan keterampilan tentang potensi pemanfaatan pekarangan lahan terbatas untuk budidaya ikan dan sayuran.

ANALISIS KEBUTUHAN DAN KETERSEDIAAN AIR BERSIH DI WILAYAH MEDAN HELVETIA PELAYANAN SPAM MEBIDANG (MEDAN-BINJAI-DELI SERDANG) Tanjung, Willyam Han Ardy; Adrian, Muhammad; Zebua, Meiman Restu; Hutabarat, Mulia; Arya, Zikri Vieri; Mulyana, Rachmat; Wardana, Novrizaldi
Jurnal Manajemen dan Bisnis Volume 25 No. 2 Tahun 2025
Publisher : UNIKA Santo Thomas

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

The availability of clean water is a vital aspect in supporting the quality of life of the community, especially in densely populated urban areas such as Medan Helvetia District. This study aims to analyze the projection of clean water needs and availability for the next 50 years, and to assess the balance between the two as a basis for planning clean water infrastructure development. The methods used include calculating domestic and non-domestic water needs, plus an estimate of 30% water loss, and analyzing needs at peak hours and maximum days. The results of the analysis show that with a fixed supply capacity of 1,100 liters per second from SPAM Mebidang, the need for clean water in Medan Helvetia District until 2075 is still in a surplus condition. The highest surplus was recorded at 795.26 liters per second in 2024, and the lowest surplus was 510.77 liters per second in 2075. These findings indicate that the district is projected not to experience a clean water deficit in the long term, as long as the supply capacity remains stable and the distribution system is managed efficiently. Therefore, periodic evaluation and integrated planning are still needed to ensure the sustainability of clean water services in the future.

ANALISIS KEBUTUHAN DAN KETERSEDIAAN AIR BERSIH DI WILAYAH MEDAN HELVETIA PELAYANAN SPAM MEBIDANG (MEDAN-BINJAI-DELI SERDANG) Tanjung, Willyam Han Ardy; Adrian, Muhammad; Zebua, Meiman Restu; Hutabarat, Mulia; Arya, Zikri Vieri; Mulyana, Rachmat; Wardana, Novrizaldi
Jurnal Manajemen dan Bisnis Volume 25 No. 2 Tahun 2025
Publisher : UNIKA Santo Thomas

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

The availability of clean water is a vital aspect in supporting the quality of life of the community, especially in densely populated urban areas such as Medan Helvetia District. This study aims to analyze the projection of clean water needs and availability for the next 50 years, and to assess the balance between the two as a basis for planning clean water infrastructure development. The methods used include calculating domestic and non-domestic water needs, plus an estimate of 30% water loss, and analyzing needs at peak hours and maximum days. The results of the analysis show that with a fixed supply capacity of 1,100 liters per second from SPAM Mebidang, the need for clean water in Medan Helvetia District until 2075 is still in a surplus condition. The highest surplus was recorded at 795.26 liters per second in 2024, and the lowest surplus was 510.77 liters per second in 2075. These findings indicate that the district is projected not to experience a clean water deficit in the long term, as long as the supply capacity remains stable and the distribution system is managed efficiently. Therefore, periodic evaluation and integrated planning are still needed to ensure the sustainability of clean water services in the future.

Adsorption of Soluble Ammonia Using A Porous Polymer Composite Cu-(TAC) And Activated Carbon Empty Fruit Palm Oil Zubir, Moondra; Jasmidi; Selly, Rini; Pulungan, Ahmad Shafwan; Miswanda, Dikki; Wardana, Novrizaldi; Rahmah, Siti; Faradilla, Putri; Ramadhan, Dwi Sapri
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 8 No. 2 (2025): JULY 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v8i2.68729

This study aims to determine the stages in the process of making activated carbon, synthesis of porous polymer composites Cu(TAC) and activated carbon composites (KA-Cu(TAC) for adsorption of dissolved ammonia (NH4OH). To know the characterization results of activated carbon and KA- Cu(TAC), as well as knowing the optimum mass, concentration, and contact time of activated carbon KA-Cu(TAC) for the adsorption of dissolved ammonia. The research stages started from Empty Oil Palm Bunches (EFB) used as biosorbents for carbon production at 500oC. The resulting product was activated with H3PO4, then modified with porous polymer Cu(TAC) to make a composite. The KA-Cu(TAC) composite was synthesized by reflux method. Then MOFs, activated carbon and KA-Cu(TAC) composite were characterized by BET. The BET characterization results showed that the successfully synthesized KA-Cu(TAC) composite experienced an increase in surface area.In the NH4OH adsorption process the optimum mass efficiency on activated carbon still increased at 8 grams while the KA-Cu(TAC) composite obtained an efficiency of 36, 6% and optimally at a mass of 4 g. At variations in concentration, the efficiency of the two samples still decreased. And the optimum time efficiency obtained in the NH4OH adsorption process with activated carbon was 70% and the KA-Cu(TAC) composite was 86.6%, both samples were equally optimal at 75 minutes

The Needs and Availability Analysis of Clean Water in The Mebidang Spam Services in Medan Marelan Region Muhammad, Faathir; Malau, Flaura Dearnita; Gultom, Natalia Cindy Octavia; Lubis, Putri Nabila; Arisetyo, Rama; Mulyana, Rachmat; Wardana, Novrizaldi
Journal of Green Science and Technology Vol 9 No 2 (2025): Journal of Green Science and Technology Vol. 9 No.2 September 2025
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v9i2.10375

Analysis of clean water needs and availability in Medan Marelan District is needed to ensure the adequacy of SPAM services along with population growth and increasing domestic and non-domestic water consumption in the future. This study aims to identify the projection of clean water needs and availability that can be accessed by the community in Medan Marelan District over the next 10, 30, and 50 years. The analysis was conducted using a quantitative descriptive approach, utilizing secondary data sourced from relevant agencies and applying arithmetic projection methods to estimate population growth, as well as the increase in both domestic and non-domestic water demands. The calculation results show that the need for clean water in the area will increase significantly from 2024 to 2075, with a total need reaching 680.27 liters per second in 2075. However, the availability of clean water from the Mebidang Regional Drinking Water Supply System (SPAM), with a capacity of 1,100 liters per second, is estimated to still be able to meet these needs during the observed period. This surplus condition provides a strong basis for policy planning and sustainable water resource management in Medan Marelan District.

Analisa Kebutuhan Dan Ketersediaan Air Bersih Untuk Masyarakat Kecamatan Medan Deli di Kota Medan dimas farqa ghurril; Butar-Butar, Laurensia; Dicky, Muhammad; Rahman, Muhammad Rizki Aulia; Ananda, Riska; Mulyana, Rachmat; Wardana, Novrizaldi
Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Vol 13 No 2 (2025): Jurnal Konstruksi dan Infrastruktur Vol 13 No.2 : Oktober 2025
Publisher : Civil Engineering Department, Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jki.v13i2.10410

Clean water is a basic necessity crucial for life, health, and socio-economic development. In Medan Deli District, although water sources are still available, challenges arise in distribution, technical losses, and processing and management capacity. This study aims to analyze the projection of clean water needs and availability in the next 10, 30, and 50 years, taking into account population growth, service coverage, and the capacity of PDAM Tirta Deli. The methods used include literature studies, secondary data collection, and calculations of domestic and non-domestic water needs based on the Directorate General of Human Settlements standards. The projection results show an increase in population from 193,196 people (2025) to 239,426 people (2075), and an increase in total water needs from 289.57 liters/second to 358.86 liters/second, including 15% technical losses. The PDAM's installed capacity of 400 liters/second is nominally sufficient, but its effectiveness may decrease without improvements to the distribution and management system. This study recommends long-term planning, infrastructure improvements, and attention to climate change and consumption patterns to ensure the sustainability of clean water supplies in the future. Key recommendations include investment in water leakage reduction technologies and strengthening the institutional capacity of water utilities (PDAMs) to improve the efficiency of the clean water supply system.

PENERAPAN MANAJEMEN BENCANA MENUJU TANGGAP BENCANA GEMPABUMI DI KAWASAN PEMUKIMAN PADAT PENDUDUK Barlian, Edo; Jumpa, Kemala; Wibowo, Harry; Prayoga, Wisnu; Wardana, Novrizaldi
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 6 (2024): Vol. 5 No. 6 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i6.38264

Desa Suka Makmur berada di kecamatan Deli Tua kabupaten Deli Serdang yang berbatasan sebelah utara berbatarsan dengan Kota Medan, di sebelah timur dengan Kecamatan Patumbak, di sebelah Selatan berbatasan dengan Desa Kedai Durian dan sebelah Barat berbatasan dengan Kecamatan Namorambe. Wilayah Desa Suka Makmur seluas 1,65 km2 atau 17,63% dari luas Kecamatan Deli Tua yang terdiri dari 8 dusun. Jumlah penduduk Desa Suka Makmur berjumlah 11.021 jiwa denagn distribusi penduduk laki-laki berjumlah 5.471 jiwa dan perempuan 5.550 jiwa. Permasalahan utama yang dialami oleh masyarakat Desa Suka makmur dalam tindakan mitigasi bencana gempabumi berupa tidak adanya panduan dan pemahaman dampak dari gempabumi terhadap korba jiwa dan kerugian harta benda. Masyarakat Desa Suka Makmur juga belum memahami bahwa dampak ikutan dari bencana gempabumi seperti likuifaksi, longsor dan tanah amblas. Metode yang digunakan adalah pendekatan kepada mitra dengan cara mendata penduduk rentan bahaya bencana, mengumpulkan data primer dan sekunder serta melakukan pendampingan penerapan manajemen bencana meliputi penyuluhan, pelatihan dan perberdayaan dengan pemasangan perangkat simbol dan rambu-rambu kebencanaan Solusi yang akan ditawarkan dengan penyuluhan, pelatihan dan perberdayaan dengan tahapan-tahapan sebagai berikut: 1) tahap persiapan perancangan, 2) penyuluhan, pengenalan dan penyampaian informasi tentang bencana alam dan mitigasi, 3) pemasangan perangkat simbol dan rambu-rambu kebencanaan

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