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Sri Sunarsih
IST AKPRIND Yogyakarta
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Journal : Jurnal Teknologi

 1 
STUDI ADSORPSI KARBON AKTIF LIMBAH KULIT BUAH NANGKA TERHADAP RHODAMIN B Sunarsih, Sri; Dahani, Wiwik
Jurnal Teknologi Vol 11 No 1 (2018): Jurnal Teknologi
Publisher : Jurnal Teknologi, Fakultas Teknologi Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

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

Abstract

Penelitian ini bertujuan membuat karbon aktif dari limbah buah nangka kering melalui proses pirolisis dilanjutkan dengan aktivasi kimia menggunakan garam ZnCl2 yang konsentrasinya divariasi dari 0, 0,5; 1,0; 1,5 dan 2,0 M. Karbon aktif yang dihasilkan diuji kadar air dan kapasitas serapannya terhadap I2 dengan metoda titrasi iodimetri. Pengujian pengaruh konsentrasi garam ZnCl2 terhadap kapasitas adsorpsi karbon aktif pada Rhodamin B, dilakukan dengan menginteraksikan 100 mg karbon aktif (yang konsentrasi aktivatornya bervariasi dari 0, 0,5; 1,0; 1,5 dan 2,0 M) dengan 25 mL larutan Rhodamin B pada konsentrasi tetap. Rhodamin B yang tidak teradsorp ditentukan dengan spektrofotometer UV-Vis. Karbon yang paling teraktifkan kemudian diuji kapasitas adsorpsinya terhadap Rhodamin B dengan menginteraksikan 100 mg karbon aktif dengan 25 mL larutan Rhodamin B yang konsentrasinya bervariasi dari 0; 0,5; 1,0; 1,5; 2,0; 2,5 dan 3,0 ppm dengan waktu interaksi 1 jam. Hasil penelitian menunjukkan bahwa kapasitas adsorpsi karbon aktif yang dihasilkan terhadap I2 berkisar antara 584,2- 844,6 mg/g arang aktif. Sampai dengan konsentrasi Rhodamin B sebesar 3 ppm, kapasitas adsorpsi arang aktif kulit nangka terus bertambah secara linier dan belum menunjukkan nilai maksimum. Pada konsentrasi Rhodamin B sebesar 0,5 – 3,0 ppm diperoleh kapasitas adsorpsi terbesar pada karbon aktif sebesar 14,20 mg/g. Teramati juga bahwa kenaikan konsentrasi aktivator ZnCl2 maupun konsentrasi larutan Rhodamin B tidak menaikkan kapasitas adsorpsi secara signifikan.
PENGOLAHAN LIMBAH CAIR INDUSTRI ELEKTROPLATING DENGAN FITOREMEDIASI MENGGUNAKAN AZOLLA MICROPHYLLA Pratiwi, Yuli; Sunarsih, Sri; Dewi, Kurnia Puspa
Jurnal Teknologi Vol 12 No 1 (2019): Jurnal Teknologi
Publisher : Jurnal Teknologi, Fakultas Teknologi Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.3415/jurtek.v12i1.2151

Abstract

Air limbah industri elektroplating umumnya banyak mengandung logam-logam berat, diantaranya adalah logam kromium (Cr) yang dapat membahayakan lingkungan dan kesehatan. Penelitian ini bertujuan untuk mengetahui pengaruh waktu tinggal dan berat basah Azolla microphylla dalam menurunkan kadar BOD, COD dan Cr-Total pada limbah cair pelapisan logam. Waktu tinggal antara 2, 4, 6, 8, 10 hari dan berat basah tanaman antara 70, 90, 110, 130 dan 150 gram terhadap parameter yang diuji yaitu BOD, COD dan Cr-Total air limbah elektroplating. Hasil penelitian menunjukkan waktu tinggal paling baik pada pengolahan ini adalah enam hari dengan nilai BOD 22,26 mg/L dan efisiensi penurunan sebesar 65,74%. Nilai COD 61 mg/L dan efisiensi penurunan sebesar 72,79%. Nilai Cr-Total 2,98 mg/L dengan efisiensi penurunan sebesar 93,23%. Berat basah tanaman yang paling baik menurunkan kadar BOD, COD dan Cr-Total adalah 150 gram. Nilai BOD yaitu 24,07 mg/L dan efisiensi penurunan sebesar 62,97 %. Nilai COD 67,87 mg/L dan efisiensi penurunan sebesar 69,72%. Nilai Cr-Total 4,13 mg/L dan efisiensi penurunan Cr-Total sebesar 90,58 %. Menurut Peraturan Gubernur Daerah Istimewa Yogyakarta No. 7 Tahun 2016 hanya BOD dan COD yang memenuhi baku mutu, sedangkan Cr-Total tidak memenuhi baku mutu.
Pengaruh Waktu Proses dan Ukuran Bahan terhadap Efektivitas Proses Maserasi Daun Strobilantes Cusia Murni Yuniwati; Wanda Pratiwi; Bambang Kusmartono; Sri Sunarsih
Jurnal Teknologi Vol 15 No 1 (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.v15i1.3570

Abstract

Strobilanthes cusia is a herbaceous shrub that is a source of blue dye, grows well above an altitude of 1000 m. This plant is very easy to breed, and for the purposes of making this plant dye, it can be harvested every 3 months. The use of strobilantes cusia leaves as natural dyes has been managed by UMK Shibiru in the Ngadirejo area, Temanggung. The results in the form of pasta have been marketed to various regions and even abroad. Some of the products are directly used to dye fabrics to serve the needs of batik in various regions. The raw materials in the form of leaves and twigs are macerated using water, within three days. The effectiveness of the process can still be improved by examining the factors that influence the effectiveness of the maceration process. In this study, it was studied how the effect of material size and time on the effectiveness of the maceration process. The results showed that the smaller the size of the material and the greater the time used, the results obtained will be better, which was indicated by the intensity of the color of the extract produced. By using a UV-Vish Spectrophotometer, two colors were detected in the extract solution, namely blue with a wavelength of 409 nm and red with a wavelength of 678 nm. However, from further observations by observing the absorbance, it can be seen that the red content is smaller than the blue color. The best result in this study was the maceration process using a leaf size of 0.5 cm and a maceration time of 3 days. Under these conditions, maceration results were obtained with an absorbance value of 24,295 for the blue color with a wavelength of 409 and an absorbance value of 12,150 nm for the red color with a wavelength of 678 nm.
Efektivitas Karbon Aktif Tempurung Kemiri Dalam Menurunkan Kadar Warna Naftol Merah Limbah Cair Industri Batik Alfonsius Tripelo Fladinir; Hadi Prasetyo Suseno; Sri Sunarsih*
Jurnal Teknologi Vol 15 No 1 (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.v15i1.3985

Abstract

The batik industry is one of the producers of pollution that can damage natural ecosystems. Batik industrial wastewater contains a lot of pollutants such as conductivity, BOD, COD, TSS, TDS, oil, pH. and temperature which are not suitable for the environment. In this study, the reduction of COD, BOD. and the concentration of red naphthol dye in the batik industry wastewater which was adsorbed with activated carbon of candlenut shell was studied. Batik wastewater is taken from Ngentakrejo Village, Kapanewon Lendah, Kulon Progo Regency. Candlenut shell activated carbon was obtained from pyrolysis, sieved with a pore size of 20 mesh, 40 mesh and 60 mesh and activated with NaCl solution whose concentration varied from 1.0; 1.5; 2.0; 2.5. and 3.0 M for 16 hours. Activated carbon was applied to adsorb red naphthol on batik wastewater by varying its weight at 10; 20; 30; 40. and 50 mg. The results showed that the effectiveness of candlenut shell- activated carbon to reduce red naphthol was 12.29%, BOD 25.49% and COD 26.67%. The adsorption process with activated carbon is not recommended as a sole treatment for batik industrial wastewater.
Co-Authors Abdullah, Ghufron G. Aditya Saputra Alfonsius Tripelo Fladinir Ani Purwanti Azizah, Rifka Noor Bambang Kusmartono Dewi, Kurnia Puspa Dion Awfa Dista Pinasti Egar, Ngasbun N Fajri, Muhammad Aulia Fitria, Laili Hadi Prasetyo Suseno I Gusti Bagus Wiksuana Ikhwali, Muhammad Faisi Imami, Ahmad Daudsyah Imelda - Istiqomah Shariati Zamani Mudasir Mudasir Muklis Muklis Murni Yuniwati Novrianty, Irma Nur Novilina Arifianingsih Panjaitan, Nahesson Hotmarama Prayogo, Wisnu Purnawan Purnawan Rachmat Mulyana Septiariva, Iva Yenis Sri Hastutiningrum Sri Juari Santosa Sulistyaningsih, Eka Suparni Setyowati Rahayu Suryawan, I Wayan Koko Tifani Diah Nisa Wahyuningtyas, Dewi Wanda Pratiwi wiwik dahani, wiwik Yuli Pratiwi