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All Journal Jurnal technoscientia Jurnal Teknologi Eksergi: Chemical Engineering Journal Seminar Nasional Teknik Kimia Kejuangan Techno LPPM Jurnal Serambi Engineering Dharma Bakti JURNAL TEKNOLOGI TECHNOSCIENTIA Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri Jurnal Inovasi Proses Jurnal Teknologi

Sri Hastutiningrum

Institut Sains & Teknologi AKPRIND Yogyakarta

Author-ID : 437228

Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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PERBANDINGAN EFEKTIVITAS PENYERAPAN Pb DAN CO DI UDARA PADA TANAMAN ANGSANA (PTEROCARPUS INDICUS)DAN GLODOGAN TIANG (POLYALTHIA LONGIFERA) SEBAGAI UPAYA BIOFILTER UDARA (Studi Kasus di Jalan Affandi Yogyakarta) Hastutiningrum, Sri; Pratiwi, Yuli; Gurusinga, Jefriyadi
Jurnal Teknologi Technoscientia Vol 10, No 2 (2018): Vol 10 No 2 Februari 2018
Publisher : IST AKPRIND YOGYAKARTA

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Affandi Street is one of the main Street that uses plant in every road (green line) in an effort to reduce air pollution. Angsana and Glodogan Tiang plants have a role in reducing air pollution. The purpose of this study was (1) to compare the effectiveness of Lead absorption and Carbon Monoxide in the air between Angsana plant and Glodogan Tiang, (2) knowing the point of the highest contamination of the plants and (3) to know the leaf position which has the most effective absorption.The research was conducted on October 2017-February 2018. The method used was the lower and upper leaf sampling on Angsana and Glodogan Tiang at 3 points along Affandi Street that is, the point 1 intersection of Condong Catur, the 2nd point in front of Mirota Gejayan , and point 3 on Demangan market. Repeat sampling three times in one month, then the sample was tested using Atomic Absorbtion Spectrophotometer (AAS) and Spektrofotometer UV-Vis method at Balai Besar Teknik Kesehatan Yogyakarta, and data analysis using ANAVA and MANAVA method with SPSS application. The results showed that plants greatly affect the absorption of air pollutants in the Affandi Street, from the results it is known that the Glodogan Tiang plant is a better plant in absorbing Pb and CO with average absorbing 3.51189 mg/kg, while the average Angsana absorbs 3,38519 mg/kg. The highest point of pollution location is at location point 3, Demangan market. The more effective leaves position in absorbing Pb is the lower leaf plant and the more effective leaf position absorbs the CO that is the upper leaves of the plant.

PROSES PEMBUATAN BATU BATA BERPORI DARI TANAH LIAT DAN KACA Hastutiningrum, Sri
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 2 Februari 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Brick is one of the ingredients of making buildings that currently needs increased mainly due to the porous bricks are stronger and lighter than ordinary bricks, making it great for the foundation of the building. Making bricks porous can use material stuffing form of foam, paper, a rice husk and organic materials. In this research are tried making bricks porous by the use of stuffing form of paper, where these materials are so easily we get. Raw materials used for the manufacture of a porous bricks is glass, clay and water. The purpose of this study was to determine the influence of glass to powerful press of porous brick. Generally, making of porous brick is mixing by powder paper, clay, glass and a little water and then made of dough. Printed and dried dough until weighs constant, then burned in muffle with temperature and time that given. Bricks which has been so then tested strong complained bitterly. The variables used are variable of ratio of clay and glass 1: 1, 1: 1,5, 1: 2, 1: 2.5, and 1: 3, variable of burning time 60 minutes, 90 minutes, 120 minutes, 150 minutes, and 180 minutes and variable of burning temperature 600 oC, 650 oC, 700 oC, 750 oC, and 800 oC. Based on the results of the research that has been done, press optimum strength obtained is 35,26 kg/cm2 with clay and glass ratio 1: 2, while the combustion time 60 minutes, gained strong press optimum of 35,26 kg/cm2 and burning temperatures 700 oC obtained strong press optimum of 36,58 kg/cm2.

UJI KEMAMPUAN NaOH UNTUK RECOVERY KROMIUM(III) DARI LIMBAH CAIR PENYAMAKAN KULIT DENGAN METODE PENGENDAPAN Hastutiningrum, Sri
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 11 Edisi Khusus Oktober 2006
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

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Waste from leather tanning process represents one the pollutants coming from va-rious existing industries. One of the dangerous compounds that contains in the liquid waste of leather tanning is chromium (III). In this study, the chromium (III) recovery from leather tanning liquid uses precipitation method.In general, the recovery of chromium (III) procedure starts with measurement of ini-tial pH, filtration of liquid waste and precipitation of chromium (III) using NaOH. The ad-dition of NaOH was also intended to increase the pH of the liquid waste. The liquid waste solution was then aged for several hours at various pH to obtain optimum conditions of precipitation. The obtained precipitation was filtered using various paper filters and finally dissolved again in sulfuric acid until the pH of the solution reached 2,0 â€“ 2,8. The so-lution was analyzed for its chromium (III) content to determine the effectiveness of the recovery. Results of the study showed that Whatman 40 paper filter is more appropriate fil-ter for separating chromium (III) precipitate. The precipitation of chromium (III) proceeded effectively in the solution pH of 8, while the effective time of aging was found to be 24 ho-urs. Resolution of the chromium (III) precipitation using sulfuric acid reached its maximum level when sulfuric acid of 2,5 M was used. This study proved that liquid waste of chro-mium (III) from leather tanning may be reused as additive materials in the leather tanning processes after being recovered from the liquid waste using precipitation method.

PENGARUH TATA GUNA LAHAN TERHADAP KUALITAS AIR DAN DAYA TAMPUNG BEBAN PENCEMARAN SELOKAN MATARAM YOGYAKARTA Hastutiningrum, Sri; -, Muchlis; Astari, Novri Anggia
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 12 No 2 Februari 2020
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

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Selokan Mataram didominasi berbagai variasi tata guna lahan. Adanya potensi masuknya unsur pencemaran selokan oleh aktivitas penggunaan lahan menjadi pertimbangan pemantauan di Selokan Mataram..Penelitian dilakukan di sekitar Daerah aliran Selokan Mataram yang dibagi menjadi 3 segmen yakni Desa Sidomoyo Kecamatan Godean, Condongcatur Kecamatan Depok, dan Kelurahan Purwomartani Kecamatan Kalasan. Penentuan luas penggunaan lahan Daerah Aliran Selokan Mataram diolah dengan proses digitasi peta menggunakan software ArcGIS. Parameter kualitas air selokan yang diuji meliputi pH, Suhu, BOD, COD dan TSS. Hasil penelitian menunjukkan status mutus air Selokan Mataram pada setiap segmen menggunakan metode Indeks Pencemaran dikategorikan dalam cemaran ringan. Bedasarkan hasil output SPSS, hasil korelasi tata guna lahan dengan kualitas air menunjukkan korelasi negatif diperoleh pH di persawahan, suhu di persawahan, suhu di permukiman, BOD di persawahan, BOD di pemukiman, COD di persawahan, dan TSS di persawahan. Sedangkan hasil korelasi positif diperoleh pH di pemukiman, COD di pemukiman, TSS di pemukiman. Hasil perhitungan daya tampung beban pencemaran metode neraca massa menunjukkan untuk parameter pH 7,15, COD 16,91 mg/L dan TSS 38,26 mg/L masih dalam ambang batas baku mutu yang ditentukan, sedangkan parameter suhu 31,13oC dan BOD 3,475 mg/L tidak memiliki daya tampung. Pencemaran yang mempengaruhi kualitas air Selokan Mataram berasal dari masuknya limpasan domestik dari aktivitas pemukiman, limpasan komersial dan limpasan dari limbah pertanian dan kurangnya vegetasi disekita aliran selokan.

PENYERAPAN AMONIA, NITRIT, NITRAT DAN FOSFAT PADA LIMBAH TAMBAK UDANG MENGGUNAKAN ALGA Chaetomorpha Crassa DENGAN METODE FITOREMIDIASI -, Purnawan; Hastutiningrum, Sri; Dany, Ajie Kusuma
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 13 No 2 Februari 2021
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

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Udang merupakan salah satu komoditas penting dan ekspor utama Indonesia. Semakin tingginya permintaan udang mengakibatkan budidaya tambak udang memiliki prospek untuk dikembangkan. Semakin tingginya permintaan udang mengakibatkan semakin tingginya produksi udang, sehingga bertambah pula limbah yang terbentuk akibat kegiatan budidaya udang. Limbah tambak udang berupa nutrien dapat mengakibatkan eutrofikasi yang berdampak buruk bagi lingkungan air. Penelitian ini bertujuan untuk mengetahui tingkat penyerapan alga Chaetomorpha crassa dalam menurunkan kadar amonia, nitrit, nitrat dan fosfat pada limbah tambak udang. Penelitian terdiri atas uji pendahuluan dan utama. Uji pendahuluan bertujuan untuk mengetahui konsentrasi pengenceran limbah tambak udang yang efektif untuk menurunkan nutrien dengan konsentrasi pengenceran 100%, 50%, dan 10% dengan berat basah alga 100 gram selama 8 hari. Setelah didapatkan konsentrasi pengenceran yang efisien dilihat tingkat penurunan pada waktu tinggal 0, 2, 4, 6, dan 8 hari dengan berat basah alga 100 gram. Penelitian utama bertujuan untuk mengetahui seberapa besar pertumbuhan alga Chaetomorpha crassa dengan menghitung pertambahan berat basah alga. Hasil penelitian pendahuluan menunjukkan pengenceran limbah tambak udang untuk menurunkan nutrien paling efektif pada konsentrasi 100% dengan penyerapan amonia sebesar 0,0120 ppm, nitrit 0,0016 ppm, nitrat 0,0407 ppm, fosfat 0,1731 ppm, dan berat alga 32,1280 gram. Hasil penelitian pada konsentrasi pengenceran yang efektif selama 8 hari yaitu amonia 0,0120 ppm, nitrit 0,1746 ppm, nitrat 0,6846 ppm, fosfat 0,3171 ppm, dan pertumbuhan berat alga sebesar 19,08 gr. Alga Chaetomorpha crassa dapat diaplikasikan langsung ke dalam limbah tambak udang untuk menurunkan nutrien pada tambak udang.

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.

Co-Authors -, Muchlis -, Purnawan Akbar Maulana Grantaka Astari, Novri Anggia Dany, Ajie Kusuma Grantaka, Akbar Maulana Gurusinga, Jefriyadi Hadi Prasetyo Suseno Hadi Saputra Imelda - Novia Dwi Astuti Purnawan Purnawan Ramadhan Topo, Rahmat Soedarsono Soedarsono Sri Sunarsih Sudarsono Sudarsono - Tifani Diah Nisa Tito Ghazy Aflah Wahyuningtyas, Dewi Yuli Pratiwi Yundari, Yundari

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