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All Journal Jurnal Ilmu Lingkungan Jurnal Teknik Kimia USU Jurnal Dampak Jurnal Pendidikan Usia Dini Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Kilat Jurnal Pendidikan Lingkungan dan Pembangunan Berkelanjutan
Netti Herlina
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PERAN STRATEGIS RUANG PUBLIK TERPADU RAMAH ANAK (RPTRA) DALAM RANGKA PEMENUHAN HAK ANAK TERHADAP LINGKUNGAN Herlina, Netti; Nadiroh, Nadiroh
Jurnal Pendidikan Usia Dini Vol 12 No 1 (2018): Jurnal Pendidikan Usia Dini, Volume 12 Nomor 1 April 2018
Publisher : Program Studi Magister Pendidikan Anak Usia Dini

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (283.348 KB) | DOI: 10.21009//JPUD.121.09

Abstract

Intergrated child- friendly public space is a public space for children to grow up and develop, but the amount and quality of it isn’t propotional. The content of implementation of RPTRA is analyzed of William Dunn’s l and Merilee Grindel Model. The result of RPTRA in fullfilment of the children rights haven’t been fullest and optimal. However the most of community enjoyed this program in supporting City Worth of Children. The kids are already getting play, leisure, participation, gathering, education, and health. The service are easy to access, without discrimination. To strengthen this program, it need to evaluated ongoing basis by using the parameter of William Dunn’s l and Grindel Merilee Model Keyword: a public space management, child- friendly, environmental Abstrak: Ruang Publik Terpadu Ramah Anak (RPTRA) adalah ruang terbuka sebagai wahana permainan, untuk tumbuh dan kembangnya anak. Namun jumlah dan kualitas kebermanfaatannya masih belum proporsional. Isi dan implementasi dari kebijakan Ruang Publik Terpadu Ramah Anak dianalisis melalui model William Dunn dan Merilee Grindle. Hasilnya menunjukkan bahwa peran strategis RPTRA dalam pemenuhan hak anak terhadap Lingkungan belum maksimal dan optimal. Meskipun demikian perannya sudah bisa dinikmiati oleh sebagian masyarakat dalam mendukung kota layak anak. Anak-anak sudah mendapatkan hak bermain, berekreasi, berpartisipasi, bebas berkumpul, mendapatkan pendidikan, kesehatan yang layak. Layananya mudah diakses tanpa diskriminatif. Apabila mau memperkuat peran RPTRA maka perlu secara berkelanjutan dilakukan evaluasi dengan menggunakan parameter dari model William Dunn dan Merilee Grindle. Kata Kunci: Manajemen ruang publik, Ramah anak, Lingkungan
Studi Penurunan Chemical Oxygen Demand (COD) Pada Air Limbah Domestik Buatan Menggunakan Biofilter Aerob Tercelup dengan Media Bioring Marieta Sarahrut Dayanti; Netti Herlina
Jurnal Dampak Vol 15, No 1 (2018)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.15.1.31-36.2018

Abstract

The purpose of this research is to know the effect of debit variation on Chemical Oxygen Demand (COD) reduction efficiency in artificial domestic wastewater after being processed using aerobic biofilter reactor. The biofilter was maintained at continues flow and aerobic state. The debit variations used were 0.56 l/h for 72 hours retention time, 0.83 l / h for 48 hours retention time and 1.67 l/h for a 24 hour retentione time. Efficiency of COD decreased at 0.56 l/hr variation was 84%, at 0.83 l / h was 86% while at 1.67 l/h was 75%. The effluent of domestic wastewater treatment using aerobic biofilter with bio ring media has fulfilled the Minister of Environment and Forestry Regulation No. 68/2012 on Quality Standard of Domestic Wastewater.
STUDI ISOLASI DAN RENDEMEN LIGNIN DARI TANDAN KOSONG KELAPA SAWIT (TKKS) Harmaja Simatupang, Andi Nata, Netti Herlina
Jurnal Teknik Kimia USU Vol 1, No 1 (2012)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jutek.v1i1.115

Abstract

Oil palm empty fruit bunches (TKKS) is one of the solid waste generated by the palm oil industry that contain lots of fiber. Based from its chemical composition, TKKS has the potential to be used as a source of chemicals that lignin. Lignin can be used commercially as binders, adhesives, fillers, surfactants, polymer products, dispersants and other chemicals. This study used fiber powder TKKS cleared of extractive substances to extract them using benzene: 96% ethanol (2:1, v / v) for 6 hours. Fiber powder is then cooked with a variety of cooking 1,2,3 hours with the addition of NaOH variation of 10%, 15%, and 20% to obtain the black liquor, black liquor and dilution variations during lignin isolation. The results showed that the optimum yield of lignin obtained is 16.42% with 84.21% purity lignin in cooking 2 hour treatment with the addition of 20% NaOH and diluting the black liquor 1:2. The test results showed FT-IR has wavelengths lignin constituent functional groups in according with the standard lignin. Keywords: oil palm empty fruit bunches, lignin, lignin isolated, yield
PENGARUH KATALIS NaOH PADA PROSES ISOLASI LIGNIN DARI TANDAN KOSONG KELAPA SAWIT Masdayani Rambe, Andi Nata, Netti Herlina
Jurnal Teknik Kimia USU Vol 2, No 2 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jutek.v2i2.2101

Abstract

Oil palm empty fruit bunches (TKKS) is one of the solid waste generated by the palm oil industry that contain lot of fibers. Based from its chemical composition, TKKS has the potential to be used as a source of chemicals that lignin. Lignin can be used commercially as binders, adhesives, fillers, surfactants, polymer products, dispersants and other chemicals. This study used fiber powder TKKS cleared of extractive substances to extract them using benzene: 96% ethanol (2:1, v / v) for 6 hours. Fiber powder is then cooked with a variety of cooking 1,2,3 hours with the addition of NaOH variation of 10%, 15%, and 20% to obtain the black liquor, black liquor and dilution variations during lignin isolation. The results showed that the optimum yield of lignin obtained is 16.42% with 84.21% purity lignin in cooking 2 hour treatment with the addition of 20% NaOH and diluting the black liquor 1:2. The test results showed FT-IR has wavelengths lignin constituent functional groups in according with the standard lignin. Keywords: oil palm empty fruit bunches,TKKS, lignin, lignin isolated
PEMBUATAN PUPUK CAIR DAN BIOGAS DARI CAMPURAN LIMBAH SAYURAN Erickson Sarjono Siboro, Edu Surya, Netti Herlina
Jurnal Teknik Kimia USU Vol 2, No 3 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jutek.v2i3.4299

Abstract

Garbage market activity results, which are not well experienced management will cause environmental pollution. The waste of vegetables still contains a high water content and contain organic ingredients, such as carbohydrates, proteins, and fats that one of them is a waste of vegetables. One method to manage waste of vegetables is to chop waste of vegetables with use the blender and mix with EM4 then fermented for 25 days. So it becomes an organic liquid fertilizer, because more quickly absorbed into the soil and quickly be used directly by plants, and can't damage the soil and plants. Preliminary data obtained from this study of the water content of 88.78%, pH 7.68, and the ratio of C / N 33.56. Final data with optimal results obtained on day 25 with the composition of the EM4 350 ml of N 1%, P 1.98%, K 0.85% and the ratio of C / N 30, total solid 34.78%, Chemical Oxygen Demand (COD) 2386 mg / L, pH 5.55 and 13 ml of biogas.
PENGARUH PENAMBAHAN RESORSINOL PADA PEMBUATAN PEREKAT LIKUIDA SABUT KELAPA Mutiara Istiqomah, Netti Herlina
Jurnal Teknik Kimia USU Vol 3, No 4 (2014)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (245.902 KB) | DOI: 10.32734/jutek.v3i4.8777

Abstract

Liquid adhesive coconut coir is the result of a reaction between lignin powder material used with aromatic compounds at high temperatures in order to obtain a solution that can be used as an adhesive. This study aims to investigate the characteristics of liquid adhesive of coconut coir (LACC) qualities  and determine the effect of resorcinol in the manufacture of adhesives LACC. The study was conducted in three phases: the first stage of coir manufacturing particles, which at this stage coir made into particles of 100 mesh, adhesive manufacturing second stage LACC which at this stage there are two stages of the liquefaction reaction coir and polymerization, and the third stage addition of resorcinol LACC into the adhesive. The variables used in this study is the addition of variable rate resorcinol at 10, 20, 30% by weight. Variables - variables that were analyzed pH, viscosity, spesific gravity, solid content, formaldehyde-free rate and compound analysis using FT-IR adhesive LACC to conditions without the addition of resorcinol and with the addition of 30% resorcinol. The results showed that the addition of resorcinol LACC influence on the resulting adhesive, which has a liquid form, the pH ranged from 12.6 to 10.6, 43,867- 131.712 cps viscosity, specific gravity of 1.252 to 1.258, solid content 46.67 to 80%, from 1.952 to 1.051% formaldehyde content. FT-IR results showed similarity LACC adhesive force phenol formaldehyde resin, namely the presence of the OH group, C = H of the aromatic ring, of methylene CH, CO from ether and fenolic compound.
PENGARUH PENAMBAHAN AKTIVATOR ZnCl2, KOH, DAN H3PO4 DALAM PEMBUATAN KARBON AKTIF DARI PELEPAH AREN (Arenga Pinnata) Marina Olivia Esterlita, Netti Herlina
Jurnal Teknik Kimia USU Vol 4, No 1 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (428.797 KB) | DOI: 10.32734/jutek.v4i1.9857

Abstract

This research aimed to determine the effect of carbonization temperature and activator agent in making activated carbon, and also determine the optimum temperature, and best activator agent. The raw material used is kind of lignocellulosic like palm frond. The palm fronds cleaned and chopped, then it soaked in each activator solution include KOH, ZnCl2, and H3PO4 at room temperature for 24 hours. After that, palm fronds carbonized in the furnace at a temperature of 4000C, 5000C, and 6000C in 1 hour. Carbon washed by aquadest until its netral, after that calculated the yield of charcoal, moisture content, and absorption ability of the iodine solution. The highest yield obtained in the activated carbon which impregnated by ZnCl2 at the temperature 4000C which is 82,04%. The best water content of activated carbon obtained in the activated carbon impregnated by H3PO4 of 6% which is the lowest one. Activated carbon which has the largest number of iodine absorption was also obtained on the active carbon carbonized at a temperature of 5000C and activated by H3PO4 which is 767.745 mg iodine / g of activated carbon, and the value is in compliance with SNI.
PENGARUH KONSENTRASI PEREKAT TEPUNG TAPIOKA DAN PENAMBAHAN KAPUR DALAM PEMBUATAN BRIKET ARANG BERBAHAN BAKU PELEPAH AREN (Arenga pinnata) Julham Prasetya Pane, Erwin Junary, Netti Herlina
Jurnal Teknik Kimia USU Vol 4, No 2 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.279 KB) | DOI: 10.32734/jutek.v4i2.10202

Abstract

The demand of renewable energy resources has been increasing. Briquette is one of the alternative energy resource which can be produced from utilization of biomass. This research aims to obtain a briquette from sugar palm frond, to obtain the effect of adhesive concentration of cassava starch and addition of lime on the quality of briquettes. This research used the batch method. Research variabels are the adhesive concentration of cassava starch in 0%, 10%, 20% and 30% (w/w) and the addition of lime in 0%, 1%, 3% and 5% (w/w) based on the weight of char powder. General materials are sugar palm (Arenga pinnata) frond, cassava starch and lime, and the general tools are furnace, briquette printer, oven, moisture analyzer, universal testing machine and bomb calorimeter. Briquetting process was started with sugar palm fronds preparation then they’re carbonized at 350 oC for 2 hours. Product of carbonization as a charcoal which is added by a cassava starch adhesive and lime then they’re printed or shaped and dried to be a briquette. Analysis used is the proximate analysis of the test parameters moisture content, ash content, volatile combustion matter content, carbon content, calorific value and compressive strength. The best briquette is with adhesive concentration in 0% and addition of lime in 5% with the calorific value 6502,379 cal/g, 45,56% fixed carbon, 6,44% moisture, 18,00% ash, 30,00% volatile combustion matter and 59,141 kg/cm2 compressive strength.
PENGARUH SUHU DAN WAKTU KARBONISASI TERHADAP NILAI KALOR DAN KARAKTERISTIK PADA PEMBUATAN BIOARANG BERBAHAN BAKU PELEPAH AREN (Arenga pinnata) Erwin Junary, Julham Prasetya Pane, Netti Herlina
Jurnal Teknik Kimia USU Vol 4, No 2 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (409.378 KB) | DOI: 10.32734/jutek.v4i2.10275

Abstract

The availability of the petroleum fuels that deprived from fossil is depleted with the increase of human population. The challenge for this fuel shortage crisis can certainly be anticipated with the manufacture of fuels deprived from renewable biomass. The study of this research is to create a biocharcoal deprived from sugar palm (Arenga pinnata) with the optimum carbonization time and temperature in order to obtain a biocharcoal with the highest calorific value. Biocharcoal is a charcoal created from biomass. The study of the determination of the optimum conditions for the manufacture of biocharcoal from sugar palm (Arenga pinnata) has a temperature variable of 300, 350, 400, 450 and 500 0C and time variable of 60, 90 and 120 minutes. Sugar palm was first cut into a small pieces and dried up under the sun and then put into a furnace to carbonate it according to the predetermined variables. The product from furnace was then put inside a desicator to cool it off for 30 minutes and then analyze it with moisture content test, ash content test, volatile matter content test, carbon content test and calorific value test. The best result was obtained at the temperature of 350 0C and 120 minutes of carbonization with the calorific value of 8611,2581 cal/gr, moisture content of %, ash content of %, volatile matter content of % and carbon content of %. Based of the calorific value obtained, the result shows that sugar palm (Arenga pinnata) biocharcoal could be utilize as an renewable alternative source fuels
PENGARUH WAKTU FERMENTASI DAN KOMPOSISI LIMBAH KULIT BUAH AREN (Arenga pinnata) DENGAN STARTER KOTORAN SAPI TERHADAP BIOGAS YANG DIHASILKAN Deril Clinton; Netti Herlina
Jurnal Teknik Kimia USU Vol 4, No 3 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jutek.v4i3.11047

Abstract

Sugar palm or commonly called as Aren (Arenga pinnata) is a multipurpose crop. The widely use of sugar palm for  food industries, generates sugar palm leather waste which can be used as a biomass for biogas production. This study aims to determine the quality and the quantity of biogas made from a mixed of sugar palm leather waste and water using batch anaerobic digester system and to evaluate the economic potential of biogas production from the mixture. Research carried out by mixing sugar palm leather with water in a ratio of 1:13; 1:11,5; 1:10; 1:9; and 1:8 (w/w) with cow dung as a starter mixed with water in an anaerobic digester batch system. Observed variables are biogas, biogas composition, Total Suspended Solid (TSS) and Chemical Oxygen Demand (COD) and analyzed fermentation slurry for every 3 days. pH for this study is set in the range of 6,4-8. The largest volume of biogas production is found at a ratio 1:11,5 (w/w)  mixture of sugar palm leather and water that is 637 mL for total waste 1,5 L with 60,983 % methane contain. TSS removal percentage obtained was 88,10 %and percentage of COD removal by 82,43%. Slurry produces unqualified TSS and COD with the standard  quality of liquid waste. The economic potential of sugar palm leather waste and water for producing biogas is beneficial.
Co-Authors Amanda, Shakina Ameilia Zuliyanti Siregar Amir Husin, Amir Anggia Sari, Yasmine Arida Susilowati Iswanto Delvian Delvian Deril Clinton Gultom, Tri Maylani Lies Setyowati Lingga, Dilo Andrian M. Basyuni Marieta Sarahrut Dayanti Masitta Tanjung Nadiroh Nelly Anna Nurfahasdi, Meutia Pelawi, Jesica Vina Randy Zulkarnain Ridwanti Batubara Ritonga, Aulia Rahma Robby Fiqry Maulana Said Muzambiq Silaen, Yerica Magdalena Sitanggang, Trie Nova Marito