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All Journal Quimica : Jurnal Kimia Sains dan Terapan Jurnal Nusantara Mengabdi
Niati, Sri Murda
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Humanities Chemistry Computer Science & IT Public Health Social Sciences Other

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Perancangan Pengolahan Air Limbah Laboratorium Pemurnian Crude Palm Oil (CPO) di Politeknik Negeri Kampar Niati, Sri Murda; Supraptiah, Endang; Ningsih, Aisyah Suci; Cahya, Gemala
JURNAL QUIMICA Vol 5 No 2 (2023)
Publisher : Program Studi Kimia, Fakultas Teknik, Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jq.v5i2.9330

Abstract

Politeknik Kampar merupakan salah satu politeknik yang mempunyai laboratorium miniplan pengolahan CPO menjadi minyak goreng, biodisel dan sabun. Pada saat operasinya pengolahan ini menghasilkan limbah cair dan limbah padat. Limbah cair yang dikeluarkan oleh suatu sistem pengolahan harus dilakukan pengolahan sebelum dibuang kelingkungan. Berdasarkan percobaan yang dilakukan proses yang menghasilkan limbah adalah pada proses degumming dihasilkan air limbah sebesar 159 L per 1 kali proses dilakukan, dimana air limbah ini mengandung gum dan berwarna kuning. Pada proses netralisasi menghasilkan limbah padat yang mengandung soapstock sebesar 10,93 kg limbah per 1 kali proses dilakukan. Limbah padat ini dapat dijadikan bahan baku sabun dengan bilangan penyabunan sebesar 480,7 mgram KOH/1 gram zat uji. Air limbah yang dihasilkan dilakukan uji jartest di laboratorium menggunakan koagulan PAC (poly alumunium clorida) dan flokulan aqua clear. Berdasarkan percobaan uji jartest yang dilakukan didapat kualitas air hasil olahan sudah berada dibawah ambang batas lingkungan baik pH, warna maupun tingkat kekeruhan. Dosis ekonomis koagulan PAC adalah pada penambahan 60 g/L dan dosis aqua clear yang dibutuhkan adalah sebesar 1,2 g/L per 1 kali proses dilakukan. dilakukan pengecekan kadar COD pada air limbah, dari hasil laboratorium didapat kadar COD akhir sebesar 444,9280ppm dan efesiensi penurunan COD sebesar 63,41%. Berdasarkan hasil laboratorium dibuat perancangan unit-unit pengolahan limbah, didesain bak equalisasi, koagulasi, flokulasi dan sedimentasi. Pada penelitian ini perancangan dilakukan untuk bak sedimentasi yakni panjang 1,50m, lebar 3,20m dan tinggi 3,20m dan bak pembubuh dengan pertimbangan sudah memenuhi volume limbah cair yang diolah.
Pengenalan Berbagai Profesi Guna Memantapkan Cita-Cita Anak Sejak Dini di SD Negeri 50 Kota Palembang Cahya, Gemala; Saadah, Raudhatus; Zikri, Ahmad; Niati, Sri Murda; Anzar, Erniati
Jurnal Nusantara Mengabdi Vol. 3 No. 2 (2024): Februari
Publisher : Penerbit Goodwood

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/jnm.v3i2.2427

Abstract

Purpose: The aim of this article is to provide education to students on the importance of establishing goals from an early age. Aspirations can be determined if students already know about various professions. The types of work that require education and special skills are known as professions. Therefore, many children do not prepare for what they will become in the future. Methodology/approach: The strategy used to provide knowledge regarding the introduction of various professions is to give direct lectures about various professions, equipped with their advantages and abilities that must be possessed and prepared from an early age. Results/findings: Through discussions with participants, the service team received information that, on average, students only knew about their profession, but did not yet know how to achieve these goals. In addition, many students still do not know the profession of private employees such as company supervisors or BUMN employees. They know only the professions they often see, such as teachers, doctors, police, and traders. This was discovered during the question-and-answer discussions during socialization. Explained the material from the head of service explaining the abilities that must be possessed if students want to become people in this profession Limitation: This service still needs to be improved with further activities to provide more enthusiasm so that children can be enthusiastic about pursuing their dreams Contribution: We would like to express our gratitude for the assistance and cooperation from SD Negeri 50 Palembang for the permission given to the community service team.
Co-Authors Anzar, Erniati Gemala Cahya, Gemala Ningsih, Aisyah Suci Saadah, Raudhatus Supraptiah, Endang Zikri, Ahmad