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All Journal J-Sil (Jurnal Teknik Sipil dan Lingkungan) Jurnal Reka Lingkungan VISIKES JURNAL KESEHATAN LINGKUNGAN (Journal of Environmental Health) Jurnal Sains & Teknologi Lingkungan Konversi Jurnal Rekayasa Sipil dan Lingkungan BIOTROPIC The Journal of Tropical Biology Acta Aquatica: Aquatic Sciences Journal Journal of Research and Technology Jukung (Jurnal Teknik Lingkungan) Journal of Health Science and Prevention Jurnal Serambi Engineering Al-Ard: Jurnal Teknik Lingkungan Jurnal Ilmiah Lingkungan Kebumian Indian Journal of Forensic Medicine & Toxicology Nusantara Journal of Community Engagement Jurnal Teknologi Kesehatan Jurnal Teknologi Lingkungan Lahan Basah Ranah Research : Journal of Multidisciplinary Research and Development (Journal of Environmental Sustainability Management) J-Sil (Jurnal Teknik Sipil dan Lingkungan)
Dedy Suprayogi
Universitas Islam Negeri Sunan Ampel Surabaya
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Nursing Public Health Social Sciences Transportation Other

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Journal : Konversi

 1 
USE OF PHOSPHORIC ACID AS BIOADSORBENT ACTIVATOR OF KETAPANG LEAVES (Terminalia sp.) TO REDUCE RHODAMINE B CONTAMINANTS Nadya Hasna; Dedy Suprayogi; Abdul Hakim
Konversi Vol 10, No 2 (2021): Oktober 2021
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v10i2.11072

Abstract

Ketapang contains tannin and phenolic compounds which are known to absorb metals and pollutants in the air. The purpose of this study was to determine the effectiveness of the biadsorbent from ketapang leaves (Terminalia sp.) on the adsorption of Rhodamine B dye without activation and with activation by 10% phosphoric acid. The study began with testing the variation of mass, time, and concentration of Rhodamine B by ketapang leaves. Then the adsorption process was carried out using a batch system and the concentration of the filtrate was measured using a UV-Vis spectrophotometer. Followed by the isotherm analysis of Freundlich and Langmuir. The results showed that the bioadsorbent ability of ketapang leaves without activation or with activation by 10% H3PO4 in terms of mass variation, contact time, and Rhodamine B concentration were 300 mg, contact time was 90 & 120 minutes, and Rhodamine B concentration was 10 mg/l. - 30 mg/l. The maximum bioadsorbent capacity of ketapang leaves (Qm) without activation was 3.7037 mg/g, while that of ketapang leaves with phosphoric acid activation was 1.0673 mg/g. The adsorption model used by the ketapang leaf bioadsorbent is the Freundlich isotherm where the R2 value close to 1 is 0.9573.
Quality of cow dung composting fertilizer with additional starter solution of cow rumen contents Nurdiansyah, Amirul; Pribadi, Arqowi; Suprayogi, Dedy; Karami, Abdillah Akmal
Konversi Vol 12, No 1 (2023): April 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v12i1.14357

Abstract

RPH Kedurus produces livestock solid waste in the form of cow dung as much as 750 kg/day and the content of cow rumen is 2 tons/day. The livestock solid waste can be processed by turning it into compost using the takakura composting method. This study aims to determine the characteristics of the compost according to the specified parameters (temperature, pH, moisture content, organic c, nitrogen, phosphorus, potassium, and the C/N ratio) and to determine the dose of use of a good cow rumen content solution to produce compost according to the quality standard of SNI 19-7030-2004. In this study, the treatments used were P0 with a composition of 3 kg of cow dung and 1 kg of rice husks, P1 with a composition of P0 and 100 mL of starter solution of cow rumen contents, P2 with a composition of P0 and 200 mL of starter solution of cow rumen contents, and P3 with a composition of P0 and 300 mL of starter solution for bovine rumen contents. Overall, the characteristics produced by the four treatments met the quality standards, while the optimum dosage for the use of rumen contents was found in treatment P2 with the use of 200 mL of starter bovine rumen contents and produced a temperature of 29 °C, pH 7.4, water content 14.2%, C. -organic 67 %, nitrogen 4.26 %, phosphorus P2O5 0.37 %, potassium K2O 2.21 %, and C/N ratio 15.7. The compost fertilizer produced can be used as an alternative organic fertilizer to be developed.
Co-Authors AA Sudharmawan, AA Abdul Hakim Aditya Sukma Prawira Agung, Tri Sunan Amelia, Oktavia Eka Amrullah Amrullah Amrullah Amrullah ANDYARINI, ESTI NOVI Angelina, Shelviana Ardilla, Farhana Fitri Auvaria, Shinfi Wazna Azatil Izmah Bayu Adhi Nugroho Estri Kusumawati Eva Agustina, Eva Farhana Fitri Ardilla Fariha, Nila Firmanto, Rafli Puji Funsu Andiarna Ika Mustika Irul Hidayati Izmah, Azatil Karami, Abdillah Akmal Khoiriyatun Nisak Kholifah, Rifa Ayu Nur Khuliyah Candraning Diyanah Kusmawati, Linda Dwi l, Sri Hidayati Laili Oktaviani M Yusuf Alamudi M.Ratodi M.Ratodi Mei Lina Fitri Kumalasari Mei lina Fitri Kumalasari Mirna Widiyanti Moch. Irfan Hadi Muhammad Yusuf Alamudi Munfarida, Ida Nadya Hasna Nilandita, Widya Nova Lusiana Nur Azizah Kartikasari Nurdiansyah, Amirul Oktaviani, Laili Pribadi, Arqowi Rafli Puji Firmanto Risa Purnamasari Rizqiyah, Ziadatur Robbi, Adinda Atthiyatur Roci Lidiana Rr Diah Nugraheni Setyowati, Rr Diah Nugraheni Rr. Diah Nugrahaeni Setyowati Rr. Diah Nugrahaeni Setyowati Safira Anastasia Sarita Oktorina Soedjajadi Keman Sri Hidayati Sri Hidayati L. Subariswanti Subariswanti Sulaiman, Achmad Sulistiya Nengse Teguh Taruna Utama Ummul Khoir, Ummul Yudied Agung Mirasa