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All Journal Jurnal Purifikasi Jurnal Inovasi Ramah Lingkungan Buletin Pengabdian
Sri Aprilia
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health Social Sciences

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PENGOLAHAN AIR GAMBUT/RAWA DENGAN PROSES KOAGULASI-MEMBRAN ULTRAFILTRASI Sri Aprilia
Purifikasi Vol 12 No 3 (2011): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v12.i3.79

Abstract

Warna air pada air gambut/rawa timbul karena senyawa-senyawa asam humus berikatan dengan ion logam di dalam air. Air berwarna yang mengandung senyawa non ionic tidak dapat dihilangkan dengan cara koagulasi. Untuk menghilangkan zat warna pada air rawa/gambut digunakan membran selulosa secara ultrafiltrasi. Membran selulosa asetat dibuat 6 variasi. Membran konsentrasi 10% menghasilkan Lp yang besar. Analisa SEM menunjukkan distribusi pori yang homogen dan bentuk pori adalah sponge. MWCO membran diperoleh pada berat molekul dekstran di atas 30000 Dalton. Air sungai dilakukan proses koagulasi diperoleh kondisi optimum pada pH 8 dan konsentrasi koagulan 40 ppm. Proses Membran disertakan koagulasi dapat mengurangi zat warna sekitar 80%, sedangkan tanpa koagulasi sekitar 30%. Fluks permeat tinggi pada air sungai dengan koagulasi. Membran yang baik dari segi fluks yang tinggi diperoleh pada membran M10T30. Penyisihan warna pada semua membran menunjukkan hasil yang signifikan.
Karakteristik Membran Selulosa Triasetat Yang Diprepasi Secara Inversi Fasa Presipitasi Imersi Sofyana Sofyana; Sri Aprilia; Mulkus Assaki
Jurnal Inovasi Ramah Lingkungan Vol 1, No 1 (2020): Jurnal Inovasi Ramah Lingkungan
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (206.638 KB)

Abstract

Phase inversion is the most versatile technique which to prepare membranes that is microfiltration, ultrafiltration, nanofiltration and reverse osmosis. In the phase inversion technique in immersion precipitation, the membrane structure formed is affected by the type of solvent and the membrane structure will affect the performance. During the process of precipitation homogeneous polymer will form a solid comprising two parts of a non-porous dense layers layer forming a dense layer on the membrane surface and a porous structure forming a support layer at the    bottom in this case an asymmetric structure formed membrane. This research was conducted in 2 stages of activity. First membrane manufacturing process with phase inversion method of cellulose triacetate 18% concentration,dimentyl sulfoxide solvent 82%, 75 oC anneling temperature and 1 minute evaporation time. The changing variables are the operating pressure of 1, 2, 3, 4, 5, 6, 7 bar, the composition of the solvent (dimentyl sulfoxide): solvent (Water) = (0 : 10) is referred to as the M1 membrane and (2 : 8 ) is referred to as the M2 membrane. Membranes that have been made in the characteristics of permeability values and cloud point. The result showed that membrane M1 has permeability value 2,0588 L / m.h.bar, M2 membrane has permeability value 0,9009 L/m2.h.bar. Cloud point point was reached in dope solution with coagulation bath 0: 10 after addition of solvent: non-solvent which is 1,870 gram, while point cloud point at dope solution with 2: 8 coagulation tube was reached in addition of solvent: non-solvent is 6,602 gram.
Penerapan rumah pengering ultraviolet untuk pengeringan tepung timphan di Gampong Ujong XII Aceh Besar (Ultraviolet drying chamber application for drying timphan flour in Ujong XII Village, Aceh Besar District Ratna Ratna; Sri Aprilia; Ramayanty Bulan; Devianti Devianti
Buletin Pengabdian Vol 1, No 3 (2021): Bull. Community. Serv.
Publisher : The Institute for Research and Community Services (LPPM) Universitas Syiah Kuala (USK)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/bulpengmas.v1i3.22800

Abstract

The implementation of this service aims to introduce an ultraviolet (UV) drying chamber, drying techniques/manufacture of pumpkin flour, and glutinous rice flour to reduce the dependence of women members in family welfare empowerment group (Pemberdayaan Kesejahteraan Keluarga/PKK) and women members in Integrated Service Post (Pos Pelayanan Terpadu/Posyandu) in Ujong XII Village on the use of flour in the market and replace it with processed flour. The approach method offered in this Product-Based Community Service activity is counseling and training on the manufacture of pumpkin flour and glutinous rice using a UV innovation greenhouse effect dryer. The results achieved in this service are the capacity of the drying house ±30 kg with an average drying temperature of 55 °C. The community has the skills and practice of processing and drying timphan flour in the form of pumpkin flour and glutinous rice flour. In conclusion, the application of a UV dryer house can facilitate the drying of raw materials for making timphan.
Upaya berkelanjutan: peningkatan pupuk kompos plus berbasis limbah nilam dan abu sekam padi di Gampong Teungoh Geunteut, Aceh Besar (Sustainable efforts: enhancing compost plus fertilizer based on patchouli waste and rice husk ash in Teungoh Geunteut Village, Aceh Besar) Fathul Bashair; Muhammad Rasyid Rida; Nabila Fardina Idrus; Anisa Malau; Sri Aprilia; Muhammad Khalil Umam
Buletin Pengabdian Vol 3, No 3 (2023): Bull. Community. Serv.
Publisher : The Institute for Research and Community Services (LPPM) Universitas Syiah Kuala (USK)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/bulpengmas.v3i3.34704

Abstract

Teungoh Geunteut Village is one of the enormous patchouli cultivation centers in Aceh. The high quality of the patchouli oil produced creates great potential for the community to carry out agriculture. However, the large number of patchouli farmers in Teungoh Geunteut Village has resulted in a massive accumulation of patchouli waste thrown out from distillation using steam boilers. The patchouli waste has not yet been utilized properly, resulting in environmental problems. To overcome the uncontrolled accumulation of patchouli waste, PKM-PM teams took the initiative to utilize the patchouli waste into compost plus fertilizer. Compost plus fertilizer can overcome environmental problems and be an alternative solution to replace the undersupply of subsidized fertilizer the government provides. Producing compost plus fertilizer can be enhanced by adding bio silica from rice husk ash. Bio silica contained in rice husk ash has an important role in absorbing the nutrients plants need to initiate quality compost plus fertilizer. The service activities were carried out in August-September 2023 in Teungoh Genteut Village on one of the residents' lands. In carrying out this activity, the team carried out 3 series of stages, namely: (1) socialization on making compost plus fertilizer, (2) direct practice on making solid and liquid compost plus fertilizer, and (3) packaging compost plus fertilizer. The results achieved in this activity are solid and liquid compost fertilizer products that can be used as commercial materials to improve the economy of the Teungoh Geunteut community. Apart from that, this service activity can be used as a forum to increase residents' knowledge and understanding regarding the processing of agricultural waste into compost and techniques for marketing strategies.
Co-Authors Anisa Malau Devianti Devianti Fathul Bashair Muhammad Khalil Umam Muhammad Rasyid Rida Mulkus Assaki Nabila Fardina Idrus Ramayanty Bulan Ratna Ratna Ratna Ratna Sofyana Sofyana