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All Journal Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Elkawnie Al-Kimia Jurnal Serambi Engineering Amina Prosiding Seminar Nasional Biologi, Teknologi dan Kependidikan (Biotik) Journal of the Civil Engineering Forum Kenanga : Journal of Biological sciences and Applied Biology Lingkar : Journal of Environmental Engineering
Husnawati Yahya
Universitas Islam Negeri Ar-Raniry Banda Aceh
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UJI EFEKTIVITAS KOTORAN SAPI DALAM REMEDIASI TANAH TOP SOIL YANG TERCEMAR OLI Tuti Marlina; Husnawati Yahya; Abd Mujahid Hamdan
Lingkar : Journal of Environmental Engineering Vol 2 No 2 (2021): LINGKAR : Journal of Environmental Engineering
Publisher : Program Studi Teknik Lingkungan Fakultas Sains dan Teknologi UIN Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (531.145 KB) | DOI: 10.22373/ljee.v2i2.1383

Abstract

Oil waste that enters the soil will cause damage to the soil. Bioremediation is an alternative to hazardous waste treatment which is relatively more economical, easy and environmentally friendly. This technology utilizes microbial activity to treat polluted soil. Cow dung is an organic material that contains many microbes and also contains good nutrition for microbial growth. Cow dung contains several microorganisms such as bacteria (Bacillus sp, Lactobacillus sp and Corynebacterium sp), fungi (Trichoderma sp and Aspergillus sp), protozoan and yeast species (Candida sp and Saccharomyces sp). Cow dung in this study acts as a bioactivator and a source of nutrients for microbes in degrading Total Petroleum Hydrocarbon (TPH) in oil-contaminated soil. This study aims to determine the effect of adding cow dung on bioremediation of oil-contaminated soil. This study consisted of six (6) treatments, namely the concentration of cow dung with variations in concentrations of 0 gr, 20 gr, 40 gr, 60 gr, 80 gr, and 100 gr on each soil of 300 gr and processing time for 30 days and analyzed 2 times a day. In this study, measurements of pH and TPH values ​​were carried out. The results of the analysis showed that the addition of cow dung with a concentration of 100 gr on 300 gr of soil was able to reduce the TPH value from 3.6% to 0.2%, with the effectiveness of reducing TPH by 86.66% within 30 days. Based on the results of the analysis using the Simple Linear Regression Test, it was stated that the bioremediation time and the addition of the concentration of cow dung had an effect on the decrease in the TPH value.
PENGARUH FERMENTASI LIMBAH RUMEN SAPI DAN RAGI TERHADAP PERFORMA KOMPOR BIOGAS Husnawati Yahya
Lingkar : Journal of Environmental Engineering Vol 3 No 1 (2022): LINGKAR : Journal of Environmental Engineering
Publisher : Program Studi Teknik Lingkungan Fakultas Sains dan Teknologi UIN Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (567.077 KB) | DOI: 10.22373/ljee.v3i1.1927

Abstract

This study aims to examine the effect of fermenting cow rumen waste and yeast on biogas stove performance. This study uses a quantitative approach with experimental methods starting with the stages of designing, assembling, testing the design results, observing and processing data. In this study, to get good biogas results, it was carried out in a 2:1 ratio pf water mixed with yeast and cow’s rumen. The fermantation process takes 8 to 31 days, during which the cow’s rumen needs to be stirred regularly to prevent solid particles from setting at the bottom of the digester.
Edible Film dari Karaginan (Eucheuma cottonii) Asal Aceh, Indonesia : Karakterisasi dengan FTIR dan SEM Reni Silvia Nasution; Muhammad Ridwan Harahap; Husnawati Yahya
Elkawnie Vol. 5 No. 2 (2019)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v5i2.5567

Abstract

Edible film karaginan merupakan salah satu alternatif pengganti kemasan plastik yang sulit terdegradasi di alam dan aman bagi bahan pangan. Karaginan merupakan hasil ekstraksi salah satu jenis rumput laut yaitu Eucheuma cottonii. Tujuan penelitian ini untuk mengetahui gugus fungsi dari edible film dengan variasi konsentrasi karaginan dan sifat permukaan dari edible film karaginan dengan SEM. Pemanfaatan karaginan hasil ekstraksi E.cottonii asal Aceh untuk pembuatan edible film diharapkan dapat meningkatkan potensi budidaya E.cottonii di Aceh. Tahapan penelitian dilakukan dengan dua tahap, tahap pertama proses ekstraksi karaginan dari E. cottonii dengan penggunaan KOH 14% dan tahap kedua pembuatan edible film dengan varisi konsentrasi karaginan 0,1%; 0,2%; 0,3% (b/v) dengan penambahan PEG sebagai plasticizer. Hasil FTIR menunjukkan gugus fungsi ester sulfat, ikatan glikosidik, 3,6 anhidro-d-galaktosa, gugus OH dan CH dengan bilangan gelombang berturut-turut pada rentang 1246,36-1246,9 cm-1 , 1072-1074 cm-1, 932-934 cm-1,  3370- 3382 cm-1, dan 2876-2880 cm-1. Perubahan bilangan gelombang edible film karaginan dibandingkan dengan FTIR karaginan hasil ekstraksi pada penelitian sebelumnya menunjukkan adanya interaksi antara karaginan dengan plasticizer PEG yang ditambahkan. Pengujian morfologi pada edible film pada konsentrasi karaginan 0,1% dan 0,2% dengan SEM menunjukkan permukaan yang homogen dan kontinyu, sedangkan pada konsentrasi 0,3% edible film tidak terbentuk.
Co-Authors Abd Mujahid Hamdan Benazir Benazir Bhayu Gita Bhernama Chalermchai Pawattana Erawati Juliansyah Harahap, Juliansyah Kwok-Ching Wong M. Faisi Ikhwali Maulana Ibrahim Rau Muhammad Ridwan Harahap Mutia Zuhra Ping-Shih Yang Reni Silvia Nasution Risna Mauriza Rizna Rahmi Santi purnama putri Syafrina Sari Lubis T.M. Ashari T.M. Ashari Tuti Marlina