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All Journal Jurnal Purifikasi Seminar Nasional Lahan Suboptimal
Mochamad Arief Budihardjo
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Environmental Science Other

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STUDI PENGARUH BULKING AGENTS PADA PROSES BIOREMEDIASI LUMPUR MINYAK Mochamad Arief Budihardjo
Purifikasi Vol 8 No 1 (2007): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v8.i1.114

Abstract

Tujuan penelitian ini adalah untuk mengetahui kondisi media yang sesuai pada proses bioremediasi oil sludge, mengetahui besarnya efisiensi penyisihan Total Petroleum Hydrocarbons (TPH), dan mengetahui jenis bulking agents yang paling baik. Campuran bahan yang digunakan adalah tanah bersih, oil sludge, bulking agents, pupuk NPK, dan pupuk kandang. Kadar TPH awal yang digunakan sebesar 5,58%. Bulking agents yang digunakan adalah sekam padi, serbuk gergaji, dan rumput liar. Untuk variabel kontrol yang diukur adalah humidity, suhu, pH, dan nutrisi. Penelitian ini dibatasi hingga kadar TPH akhir maksimal 1%, sesuai dengan KepMenLH No 128/2003, yang mentoleransi kadar TPH maksimal 1%. Hasil penelitian menunjukkan rasio C/N/P yang menurun setelah 15 hari. Selain itu pH sebesar 5–9 telah memenuhi kriteria sebagai media yang sesuai bagi mikroba tanah (pH ideal 6-9). Suhu selama penelitian(15-450C) tergolong ideal bagi pertumbuhan bakteri. Kelembaban cenderung stabil antara 12-30%. Masing-masing windrow menunjukkan pola penurunan konsentrasi TPH yang tipikal. Kadar TPH pada akhir penelitian berbeda. Sedangkan efisiensi penyisihan TPH dengan menggunakan bulking agents sekam padi, rumput liar, dan serbuk gergaji masing-masing sebesar 76,85%, 87,05%, dan 79,43%. Windrow yang menunjukkan efisiensi penyisihan TPH terbesar dengan konsentrasi TPH akhir paling kecil, adalah windrow B, yaitu yang menggunakan bulking agents rumput liar.
Sebaran Residu Insektisida Parathion pada Lahan Pertanian Bawang Merah di Kecamatan Wanasari Kabupaten Brebes Indratin Indratin; Mochamad Arief Budihardjo; Muhammad Helmi
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Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Indratin I, Budihardjo MA, Helmi M. 2020. Distribution of parathion insecticide residue in shallot agriculture land in wanasari sub-district, Brebes regency. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang  20 Oktober 2020. pp. xx.  Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).The use of pesticides in agricultural land tends to be excessive because farmers think that pesticides can increase yields. It can also pollute the environment. Many farmers often use organophosphate insecticides as the efforts in controlling the pests of shallot plant organisms, one of which is Parathion. The use of Parathion has been banned by the Indonesian government since 2015 for agriculture. This research aims to determine the distribution of Parathion residue in the lower red agricultural land in Wanasari sub-district, Brebes Regency. The research was carried out in March - July 2020 in Wanasari sub-district. Soil samples were taken to the Integrated Laboratory of the Indonesian Agricultural Environment Research Institute to be analyzed the residual content of Parathion by using the QueCheRS method. The mapping of the residue distribution method used ArcGIS 10.4 with the Spline interpolation method. The results of laboratory analysis identified the residual content of Parathion between <LoD : 0.0025 mg kg-1 to 0.0956 mg kg-1. The residual content of the Parathion which was identified to exceed the LoD value was spread over 17 soil sampling points, all identified below the MRLs  value. The identified land area in the very low category was 806.08 ha and identified as low was 1,563.81 ha. The distribution of parathion residues in shallot agricultural land in Wanasari sub-district was identified in the very low and low categories, this needs to be watched out for because it is possible for the farmers to still use parathion type insecticides in shallot cultivation.
Co-Authors Indratin Indratin Muhammad Helmi