Garuda - Garba Rujukan Digital

Activated Carbon from Jackfruit Peel Waste ss Decolouring Agent of Screen Printing Waste Water Sri Sunarsih; Sri Hastutiningrum; Tifani Diah Nisa
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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

The aim of this research was to create decolouring agent of screen printing waste water by using activated carbon from jackfruit peel waste as an adsorbent. The carbonization process of jackfruit peel waste has been done in temperature 907o C in the absence of air and activated with sulfuric acid in different concentration (3, 5, 7, 9 and 11%). The adsorption capacity of activated carbon found out by interacting it with 25 mL of screen printing waste water. Furthermore, some test had been done to find out the influence of different particle size, weight of adsorbent and interaction time. The effect of different particle size was examined at 20, 40 and 60 mesh, the effect of the weight of adsorbent in 100, 125, 150, 175 and 200 mg and interaction time at 15, 30, 60, 90 and 120 minutes. Optimum capacity of activated carbon reached at 11% concentration of sulfuric acid, particle size 40 mesh, with the weight 200 mg and time interaction of 90 minutes

ANALISIS HUBUNGAN AKTIVITAS KENDARAAN BERMOTOR TERHADAP KONSENTRASI SO2 DAN NO2 DI UDARA AMBIEN (STUDI KASUS: JL. PANEMBAHAN SENOPATI YOGYAKARTA) Sri Hastutiningrum; Sri Sunarsih; Imelda -
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 11 No 1 Agustus 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

The aims of this study is to determine the correlation between vehicle traffic activity and the effect of sampling time on the SO2 and NO2 concentration in ambient air. The sampling location is on Jl. Senopati Yogyakarta. Sampling was carried out by an air absorbtion tool with 1.5-meter-high auxiliary from the ground. To measure SO2 using Pararosanilin method and Griess Saltzman method for NO2. The stages of this study begin with the preparation of TCM absorption solutions for SO2, Griess Saltzman absorbent solution for NO2, calibration curve manufacture, and vehicle volume calculation. Determination of concentration is done by UV-Vis spectrophotometer Thermo Scientific Genesys 20. Time sampling is divided into weekdays (Tuesday-Wednesday) and weekend (Saturday-Sunday) with sampling time on 03.00-04.00, 07.00-08.00 a.m, and 12.00-01.00, 04.00-05:00 and 07.00-08.00 p.m. The result of the study shows that the concentration of SO2 and NO2 in ambient air is not related (correlated) with vehicle activity at Jl. Senopati Yogyakarta,as well as sampling time that did not affected. The highest SO2 concentration was recorded at 232,05μg/Nm3 while the highest NO2 concentration was 17.9522 μg/Nm3. Both is not exceed of air quality standard 900μg/Nm3 and 400 μg/Nm3.

PEMANFAATAN LIMBAH KULIT SPLIT INDUSTRI PENYAMAKAN KULIT UNTUK GLUE DENGAN HIDROLISIS KOLAGEN Sri Hastutiningrum
Jurnal Teknologi Vol 2 No 2 (2009): Jurnal Teknologi
Publisher : Jurnal Teknologi, Fakultas Teknologi Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

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

INTISARI Kulit split adalah sisa dari industri penyamakan kulit. Dalam satu ton kulit mentah garaman (kulit segar yang telah diawetkan dengan garam) terdapat kulit split sebanyak 115 kg. Dari sekian persen kulit mentah tersebut hanya sebagian kecil yang dimanfaatkan, contohnya untuk pembuatan krecek (krupuk kulit). Untuk lebih memanfaatkannya maka perlu diadakan penelitian yaitu pemanfaatan limbah kulit split industri penyamakan kulit untuk glue dengan hidrolisis kolagen dengan menggunakan katalisator asam chlorida (HCl). Proses hidrolisis pada percobaan ini menggunakan katalisator HCl yang dijalankan dalam labu leher tiga dengan pengaduk merkuri. Kemudian dengan suhu tertentu kulit split tersebut dipanaskan sampai menjadi larutan yang kental dan filtratnya disaring. Setelah itu filtrat diuapkan dalam oven sampai berat yang konstan yang berupa lem. Dari percobaan yang telah dilakukan pada variabel waktu reaksi dan perbandingan zat pereaksi antara berat kulit split terhadap volume air, dengan katalisator HCl 10% sebanyak 5 mL, kecepatan pengadukan 500 rpm dan suhu 80±2oC didapatkan kondisi optimum yaitu pada waktu 2 jam, perbandingan zat pereaksi 30 g/200 mL dengan hasil lem sebanyak 8,9 gr dan rendemen sebesar 29,67%.

Perencanaan Jaringan Perpipaan Kawasan Tumbuh Kembang Perumahan Desa Logandeng Kabupaten Gunungkidul Menggunakan Aplikasi Epanet 2.0 Tito Ghazy Aflah; Sri Hastutiningrum; Soedarsono Soedarsono
Jurnal Serambi Engineering Vol 7, No 1 (2022): Januari 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i1.3887

According to data from PDAM Tirta Handayani, Gunungkidul Regency, as the manager of clean water providers in Wonosari City and its surroundings, currently only able to serve about 76% of the total population in the service area, mostly through direct lines. Condition Currently, there are still many obstacles in drinking water services, especially in terms of distribution to customer. The purpose of the study was to determine the required discharge in housing and Knowledge of pipeline network planning. This research is located in the housing that will be built in Logandeng village, Gunungkidul district. Data were collected including debits, hours peak water use, and look at the topography of the planning area as an observation technique in data input, besides that, interview techniques are also used to be able to find out the number of houses and population in the housing planning area. Based on calculation analysis and epanet simulations in planning the clean water distribution network in housing that will be built in the village of Logandeng, in planning the distribution pipe network system using gravity drainage system, the highest elevation here is 206 MDPL and the lowest is 188 MDPL, so that the debits in the planning system still reach planning with branch system. Water demand in Logandeng housing in 2021 is 0.921 L/second with a population of 511 people, while in 2025 it is 1.188 L/second with population of 664 people.

EVALUATION OF TREATMENT DRINKING WATER TREATMENT (IPAM) INSTALLATION OF SUGIHAN PDAM TIRTA WIJAYA, CILACAP REGENCY Akbar Maulana Grantaka; Sri Hastutiningrum; Sudarsono Sudarsono
Techno LPPM Vol 8, No 1 (2022)
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

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

Water is one of the important factors in fulfilling human needs. The existence of water on earth is very abundant but the quality doesn't meet the standards. The system value of a DWTP can be seen from 3 aspects, quality, quantity, and continuity of water produced. Dry season, increasing population, and the age of DWTP are things that will be faced in maintaining the three aspects of value. Seeing the several conditions experienced by PDAM Tirta Wijaya, it is necessary to conduct an evaluation to determine the performance of each unit, the quality of raw and production water, the fulfillment of water needs, the operation during the dry season and the optimization that needs to be done. The method used is direct observation to DWTP Kesugihan. The results of the evaluation of DWTP Kesugihan are that the flocculation, sedimentation and filtration units is not comply with SNI 2774-2008, the water demand in 2029 is 1170.7 L/second. From this study it can be concluded that the performance of the DWTP unit is categorized as quite good, the quality of raw water is still worthy of consideration, the quality of production water has met the quality standards, DWTP Kesugihan has not been able to fulfill water needs in 2029 as much as 80% coverage, there is no operational standard during the dry season. Optimization of DWTP Kesugihan by increasing the height of the filtration unit to 6.5 m, the nozzle diameter to 0.05 m and the number of nozzles to 500 and making SOPs for the dry season

Analisis Kualitas Udara Pada Rumah Warga Terhadap Parameter Bakteri dan Jamur Novia Dwi Astuti; Sri Hastutiningrum*; Sudarsono Sudarsono
Jurnal Teknologi Vol 15 No 2 (2022): Jurnal Teknologi
Publisher : Jurnal Teknologi, Fakultas Teknologi Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/jurtek.v15i2.3977

The final processing and disposal the waste occurs at the Final Disposal Facility (TPA). Because the rubbish heaps include a variety of contaminants and produce air pollution, landfills can have an impact on the environment's quality. This study intends to identify and contrast the outcomes of the analysis of the air quality in residents' homes near the Piyungan TPA location, which is 50 m, 350 m, 650 m, and 1000 m from the TPA, with quality standards according to the Decision of the Minister of Health No. 1077 of 2011 based on bacterial and fungal parameters. The ideal distance between residential areas and the TPA location is another goal of this study. Air sampling at each location used the air sampling method directly with NA media and PDA media in petri dishes. The results showed that the number of bacterial colonies at a distance of 50 m was 4,485.6 CFU m-3 and the fungal colonies were 2,306.4 CFU m-3. At a distance of 350 m, the number of bacterial colonies was 3,355.4 CFU m-3 and fungal colonies were 2,130.9 CFU m-3. The number of bacterial colonies at a distance of 650 m was 2,919.7 CFU m-3 and the number of fungal colonies was 2,001.3 CFU m-3. The number of bacterial colonies at a distance of 1000 m was 1,353.2 CFU m-3 and the number of fungal colonies was 765.2 CFU m-3. Air quality in residents' homes with a distance of 50 m to 1000 m does not meet the healthy air quality requirements based on Minister of Health Regulation No. 1077 of 2011 concerning Indoor Air Conditioning at Home with maximum levels of airborne microbes <700 CFU m-3.

DAUN LIDAH MERTUA (SANSEVIERIA) SEBAGAI ADSORBEN LOGAM PERAK (Ag) DAN KROMIUM (Cr) PADA LIMBAH CAIR INDUSTRI PERAK Sri Hastutiningrum
Jurnal Inovasi Proses Vol. 7 No. 2 (2022): September 2022
Publisher : JURNAL INOVASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/jip.v7i2.4223

Perkembangan industri terus mengalami peningkatan seiring dengan perkembangan zaman. Namun, hal itu juga diikuti dengan bertambahnya jumlah limbah yang dihasilkan. Kotagede merupakan salah satu daerah yang terkenal akan kota penghasil kerajinan perak di provinsi Daerah Istimewa Yogyakarta. Limbah cair yang dihasilkan dari industri perak ini pada kenyataannnya belum diolah terlebih dahulu sebelum dibuang, padahal didalamnya masih terdapat kandungan logam berat seperti Perak (Ag) dan Kromium (Cr). Salahsatu upaya yang dapat dilakukan untuk mengurangi kadar Ag dan Cr pada limbah cair industri perak ialah dengan cara adsorpsi logam Ag Dan Cr menggunakan karbon aktif dari daun lidah mertua (Sansevieria). Tanaman lidah mertua ini mengandung unsure selulosa yang cukup tinggi sebesar 50 – 60%, sehingga ini menjadi salah satu potensi yang dapat dikembangkan karena masih sangat sedikit pemanfaatan tanaman lidah mertua yang hanya terbatas untuk tanaman hias saja. Pembuatan karbon aktif dilakukan dengan variabel yang divariasikan, yaitu pertama jenis activator HCl dan KOH dengan konsentrasi masing–masing activator sebesar 1N. Kedua, waktu kontak adsorpsi 60 menit, 120 menit,180 menit, 240 menit, dan 300 menit. Hasil penelitian ini menunjukkan persentase penyerapan terbanyak untuk logamAg diperoleh pada jenis aktivator HCl dengan waktu kontak adsorpsi 120 menit sebesar 88,1841%. Serta untuk logam Cr diperoleh pada jenis activator KOH dengan waktu kontak adsorpsi 240 menitsebesar 85,8897%.

PEMANFAATAN LIMBAH KULIT SPLIT INDUSTRI PENYAMAKAN KULIT UNTUK GLUE DENGAN HIDROLISIS KOLAGEN Sri Hastutiningrum
Jurnal Teknologi Vol 2 No 2 (2009): Jurnal Teknologi
Publisher : Jurnal Teknologi, Fakultas Teknologi Industri, Universitas AKPRIND Indonesia

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

INTISARI Kulit split adalah sisa dari industri penyamakan kulit. Dalam satu ton kulit mentah garaman (kulit segar yang telah diawetkan dengan garam) terdapat kulit split sebanyak 115 kg. Dari sekian persen kulit mentah tersebut hanya sebagian kecil yang dimanfaatkan, contohnya untuk pembuatan krecek (krupuk kulit). Untuk lebih memanfaatkannya maka perlu diadakan penelitian yaitu pemanfaatan limbah kulit split industri penyamakan kulit untuk glue dengan hidrolisis kolagen dengan menggunakan katalisator asam chlorida (HCl). Proses hidrolisis pada percobaan ini menggunakan katalisator HCl yang dijalankan dalam labu leher tiga dengan pengaduk merkuri. Kemudian dengan suhu tertentu kulit split tersebut dipanaskan sampai menjadi larutan yang kental dan filtratnya disaring. Setelah itu filtrat diuapkan dalam oven sampai berat yang konstan yang berupa lem. Dari percobaan yang telah dilakukan pada variabel waktu reaksi dan perbandingan zat pereaksi antara berat kulit split terhadap volume air, dengan katalisator HCl 10% sebanyak 5 mL, kecepatan pengadukan 500 rpm dan suhu 80±2oC didapatkan kondisi optimum yaitu pada waktu 2 jam, perbandingan zat pereaksi 30 g/200 mL dengan hasil lem sebanyak 8,9 gr dan rendemen sebesar 29,67%.

Pelatihan dan Pembuatan Handsanitizer serta Handsanitizer Stand Untuk RT 07 RW 21 Modinan, Gamping, Sleman, Yogyakarta Saputra, Hadi; Hastutiningrum, Sri; Pratiwi, Yuli
DHARMA BAKTI Dharma Bakti-Vol 5 No 1-April 2022
Publisher : LPPM IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/dharma.v5i1.3902

Coronavirus disease (COVID-19) is an infectious disease caused by the discovery of a new coronavirus. This disease occurs as a result of COVID-19 infection in the respiratory tract. Transmission of this disease occurs due to droplets when sneezing. Prevention and slowdown of transmission can be done by implementing health protocols. Respiratory etiquette includes using a mask, washing hands with a hand sanitizer, and using a safe hand-sanitizer stand. The propose of this social wellfare is to condact training on the manufacture of hansanitizer and foot hand sanitizer stands that are safe, inexpensive, and easy to manufacture and are needed by residents who are economically affected during the pandemic. The result of this service to the community has resulted in a hand-sanitizer stand prototype design that is easy and inexpensive to be made independently by the district.

EVALUATION OF TREATMENT DRINKING WATER TREATMENT (IPAM) INSTALLATION OF SUGIHAN PDAM TIRTA WIJAYA, CILACAP REGENCY Grantaka, Akbar Maulana; Hastutiningrum, Sri; Sudarsono, Sudarsono
Journal TECHNO Vol. 8 No. 1 (2022): Mei
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v8i1.6365

Water is one of the important factors in fulfilling human needs. The existence of water on earth is very abundant but the quality doesn't meet the standards. The system value of a DWTP can be seen from 3 aspects, quality, quantity, and continuity of water produced. Dry season, increasing population, and the age of DWTP are things that will be faced in maintaining the three aspects of value. Seeing the several conditions experienced by PDAM Tirta Wijaya, it is necessary to conduct an evaluation to determine the performance of each unit, the quality of raw and production water, the fulfillment of water needs, the operation during the dry season and the optimization that needs to be done. The method used is direct observation to DWTP Kesugihan. The results of the evaluation of DWTP Kesugihan are that the flocculation, sedimentation and filtration units is not comply with SNI 2774-2008, the water demand in 2029 is 1170.7 L/second. From this study it can be concluded that the performance of the DWTP unit is categorized as quite good, the quality of raw water is still worthy of consideration, the quality of production water has met the quality standards, DWTP Kesugihan has not been able to fulfill water needs in 2029 as much as 80% coverage, there is no operational standard during the dry season. Optimization of DWTP Kesugihan by increasing the height of the filtration unit to 6.5 m, the nozzle diameter to 0.05 m and the number of nozzles to 500 and making SOPs for the dry season

Title

Found 21 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 21 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 21 Documents
Search