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PEMANFAATAN LIMBAH SERAT INDUSTRI TEPUNG SAGU AREN SEBAGAI BAHAN BAKU PEMBUATAN KERTAS (PULP) DENGAN PROSES DELIGNIFIKASI -, Purnawan
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 4 No 1 Agustus 2011
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v4i1.479

Abstract

There are several home industries in sago aren processes center in Daleman, Tulung, Klaten, Central Java, produce sago aren flour product (soun) an average of 200 tons/year, these home industries produce waste by product of sago fibre. The process of pulp from sago fibre is done by two steps of the process, step one is with using nitric acid (HNO3) and second process with soda coustic (NaOH). The process is conducted in three neck flask equipped with a stirrer, and cooller. The temperature is kept constant. Delignification process of sago aren fibre was carried and by two steps. Firstly 10 grams of sago fiber adds by 400 ml of HNO3 7.5%. Secondly the product of step one adds by 400 mL of NaOH 7.5%, while the condition of both steps one kept on temperature of ±103 0C, and the stirring speed of 400 rpm, obtained relatively good condition by using NaOH concentrations of 7.5% and 1.5 hours of processing time. In these conditions the percentage of product cellulose results obtained is 33.41%, with the permanganate numbers of 1.28, the concentration of α cellulose 95.74%.
AUDIT ENERGI DAN ANALISIS PELUANG PENGHEMATAN ENERGI PADA RUANG KULIAH KAMPUS I IST AKPRIND YOGYAKARTA DALAM UPAYA MENUJU KAMPUS BERWAWASAN LINGKUNGAN Sukmawati, Paramita Dwi; -, Purnawan
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 13 No 2 Februari 2021
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

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

Abstract

Electrical energy is one of the most important human needs and cannot be released from daily needs. Almost all human work requires electrical energy, the use of electrical energy is usually more widely used in large buildings such as office buildings, factories, hotels, and also includes universities that use large-capacity electrical energy. However, the source of energy for electricity generation is conventional energy sources derived from petroleum and coal which if used in excess will be able to endanger and damage the surrounding environment. Steam Power Plant (PLTU), as the largest electricity supplier that has produced electricity through coal burning, contributes to the phenomenon of global warming. In addition, it can also cause depletion of oil and coal reserves due to the non-renewable nature of oil and coal. So, indirectly our consumptive nature of electricity increases the supply of electricity and in the process of producing electricity can damage the environment. Because it has to do with saving electrical energy from households to industries. One method that is often used to make efficient use of electrical energy is the Energy Conservation method. Energy Conservation is an increase in energy efficiency that is used or commonly called the energy saving process, in this method there is an Energy Audit. The energy audit in this study was conducted in the Lecture Room of Campus I IST AKPRIND Yogyakarta in an effort to go to an environmentally friendly campus. The Value of Energy Consumption Intensity (IKE) in the lecture room at Campus I of IST AKPRIND Yogyakarta is very efficient. But for the value of intensity of the lighting in all of the classes do not meet the value of the average lighting levels based on SNI 03-6197-2000, so the lecture room comfort level has not been reached. For this reason, it is necessary to add lighting in the lecture room at Campus I of IST AKPRIND Yogyakarta.
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

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

Abstract

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.
AUDIT ENERGI DAN ANALISIS PELUANG PENGHEMATAN ENERGI PADA RUANG KULIAH KAMPUS I IST AKPRIND YOGYAKARTA DALAM UPAYA MENUJU KAMPUS BERWAWASAN LINGKUNGAN Sukmawati, Paramita Dwi; -, Purnawan
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 13 No 2 Februari 2021
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

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

Abstract

Electrical energy is one of the most important human needs and cannot be released from daily needs. Almost all human work requires electrical energy, the use of electrical energy is usually more widely used in large buildings such as office buildings, factories, hotels, and also includes universities that use large-capacity electrical energy. However, the source of energy for electricity generation is conventional energy sources derived from petroleum and coal which if used in excess will be able to endanger and damage the surrounding environment. Steam Power Plant (PLTU), as the largest electricity supplier that has produced electricity through coal burning, contributes to the phenomenon of global warming. In addition, it can also cause depletion of oil and coal reserves due to the non-renewable nature of oil and coal. So, indirectly our consumptive nature of electricity increases the supply of electricity and in the process of producing electricity can damage the environment. Because it has to do with saving electrical energy from households to industries. One method that is often used to make efficient use of electrical energy is the Energy Conservation method. Energy Conservation is an increase in energy efficiency that is used or commonly called the energy saving process, in this method there is an Energy Audit. The energy audit in this study was conducted in the Lecture Room of Campus I IST AKPRIND Yogyakarta in an effort to go to an environmentally friendly campus. The Value of Energy Consumption Intensity (IKE) in the lecture room at Campus I of IST AKPRIND Yogyakarta is very efficient. But for the value of intensity of the lighting in all of the classes do not meet the value of the average lighting levels based on SNI 03-6197-2000, so the lecture room comfort level has not been reached. For this reason, it is necessary to add lighting in the lecture room at Campus I of IST AKPRIND Yogyakarta.
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

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

Abstract

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.
Co-Authors Dany, Ajie Kusuma Dwi Sukmawati, Paramita I Gusti Bagus Wiksuana Sri Hastutiningrum Yundari, Yundari