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All Journal Majalah Kulit, Karet, dan Plastik Berita Kedokteran Masyarakat
Sarto Sarto
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Engineering Nursing Public Health

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Pemodelan matematis pengurangan COD dalam air limbah industri penyamakan kulit secara adsorpsi kontinyu menggunakan abu terbang bagas Agus Prasetya; Sarto Sarto; Muhammad Sholeh
Majalah Kulit, Karet, dan Plastik Vol 29, No 1 (2013): Majalah Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20543/mkkp.v29i1.214

Abstract

ABSTRACTThe objective of this research was to obtain suitable mathematical model for ChemicalOxygen Demand (COD) removal originated from tannery wastewater using bagasse fly ash incontinuous system. In the column experiment, effect of flowrate, concentration of wastewater,and bulk density were studied. Three models: Adams-Bohart, Thomas, and Yan were applied toexperimental data to predict the breakthrough curve. The best model was evaluated usingcorrelation coefficients. Yan model was found to give the most accurate to describe dynamicbehavior of the column experiment. The best result was obtained at flowrate of 100 mL/min,concentration of 400 mg/L, and bulk density of 61 g/L. The Yan kinetic constant (k ) and the Yadsorption capacity (q ) were 0.3210 mL/mg/min and 17.0947 mg/g respectively and the Ycorrelation coefficient obtained was 0.9379.Keywords: Chemical Oxygen Demand, tannery wastewater, bagasse fly ash, adsorptionABSTRAKpengurangan COD dalam air limbah industri penyamakan kulit mengunakan abu terbang bagassecara kontinyu. Variasi percobaan adsorpsi dalam kolom yang dilakukan yaitu: kecepatan aliranair limbah, konsentrasi air limbah, dan bobot isi. Persamaan Adams-Bohart, Thomas, dan Yandiaplikasikan ke data percobaan untuk memprediksikan kurva breakthrough. Koefisien korelasidigunakan untuk mengevaluasi model terbaik. Proses pengurangan COD dengan abu terbangbagas secara kontinyu dalam kolom paling cocok dimodelkan dengan model Yan. Hasil terbaikdiperoleh pada kecepatan aliran air limbah 100 mL/menit, konsentrasi air limbah 400 mg/L, danbobot isi 61 g/L. Parameter konstanta kinetika (k ) dan kapasitas adsorpsi (q ) yang diperoleh Y Yberturut-turut sebesar 0,3210 mL/mg/menit dan 17,0947 mg/g dengan nilai koefisien korelasiyang didapatkan yaitu 0,9379.Kata kunci: Chemical Oxygen Demand, air limbah industri penyamakan kulit, abu terbang bagas,adsorpsi
Pengolahan air limbah industri penyamakan kulit menggunakan abu terbang bagas secara batch Muhammad Sholeh; Agus Prasetya; Sarto Sarto
Majalah Kulit, Karet, dan Plastik Vol 28, No 1 (2012): Majalah Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (237.709 KB) | DOI: 10.20543/mkkp.v28i1.202

Abstract

The objective of this research was to evaluate the adsorption ability of chemically activated bagasse fly ash using H O or H SO to remove COD from tannery wastewater and to obtain 2 adsorption isotherm model in batch system. Two stages have been carried out, namely the activation experiment and the adsorption isotherm experiment. In the activation experiment, effect of H O dan H SO (3% and 7,5% w/w) were studied. The best result of the variation was used in the next experiment. In the adsorption isotherm experiment, variation of the initial concentrations of COD from 52,53 to 1665,79 mg/L and mass of bagasse fly ash from 0,1 to 0,4 g were used. Equilibrium data was used to evaluate the parameters in the Langmuir, Freundlich, and Temkin equations. The best model was evaluated using determination coefficients. The results showed that bagas fly ash had better ability to reduce the COD when it was not activated with H O nor H SO (3% and 7,5%). Freundlich model was best to describe COD removal using bagasse fly ash in batch system. Freundlich equation constants K and n were F 0,4360 (mg/g)/(L/mg)1/n and 1,2969 respectively and the determination coefficient obtained was 0,93.  Keywords: Chemical Oxygen Demand, tannery wastewater, bagasse fly ash, adsorption
EVALUASI PENGELOLAAN LIMBAH MEDIS PELAYANAN KESEHATAN GIGI PADA RUMAH SAKIT GIGI DAN KLINIK GIGI DITINJAU DARI ASPEK SISTEM MANAJEMEN: A SYSTEMATIC REVIEW Herajeng Styamita Pradani; Sarto Sarto; Wiranto Wiranto
Berita Kedokteran Masyarakat (BKM) Vol 36, No 12 (2020)
Publisher : Fakultas Kedokteran Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/bkm.60602

Abstract

AbstractBackground: Dentistry is growing rapidly around the world. There is an increasing number of dental health service facilities across the country. The quality of dental health and patient care has improved, but on the other hand, it has produced a large amount of medical waste. The amount of medical waste poses potential health risks and damage to the environment, if doesn't managed properly. Objective: To evaluate the management of medical waste in dental hospitals and dental clinics in terms of management aspects (input, process, output). Methods: This study was done with a systematic review method. Results and Discussion: The result of research data found 348 articles then filtered according to the research criteria so that 25 articles were obtained. The input category for medical waste management in dental hospitals was lack in terms of training for waste management officers and the foundation of infrastructures, especially personal protective equipments. The process category in dental hospitals, namely medical waste, has not all been disaggregated and the storage time exceeded the standard. The output category in dental hospitals showed that not all dental hospitals did the separation according to the category and there was no data on waste reduction. The input category for medical waste management in dental clinics was lack in terms of training, infrastructure advices, POSs and funding. Process categories in dental clinics were not up to standard including reduction, sorting, storage and transportation of medical waste. The output category in the dental clinics showed not all did the separation according to the category and there was no waste reduction. Conclusion: Dental hospitals and dental clinics have not fully implemented the recommendations of WHO (2014) and Regulation of the Minister of Environment and Forestry of the Republic of Indonesia Number 56 of 2015 regarding medical waste management.Keywords: dental waste management, dental hospital, dental clinic. AbstrakLatar Belakang : Kedokteran gigi semakin berkembang pesat diseluruh dunia. Terdapat peningkatan jumlah fasilitas pelayanan kesehatan gigi di seluruh negara. Kualitas kesehatan gigi dan perawatan pasien meningkat namun disisi lain menghasilkan limbah perawatan dalam jumlah besar. Besarnya limbah medis berpotensi menimbulkan dampak kesehatan dan mencemari lingkungan jika tidak dikelola dengan baik. Tujuan : Mengevaluasi pengelolaan limbah medis pada rumah sakit gigi dan klinik gigi ditinjau dari aspek manajemen (input, proses, output). Metode : Penelitian ini menggunakan metode systematic review. Hasil dan Pembahasan : Hasil pencarian data menemukan 348 artikel yang kemudian dilakukan penyaringan sesuai kriteria penelitian sehingga didapatkan  25 artikel. Kategori input dalam pengelolaan limbah medis di rumah sakit gigi terdapat kekurangan dalam hal pelatihan bagi petugas pengelola limbah dan pengadaan sarana prasarana terutama alat pelindung diri (APD). Kategori proses di rumah sakit gigi yaitu limbah medis belum semuanya terpilah sesuai jenisnya dan waktu penyimpanan limbah yang melebihi standar. Kategori output di rumah sakit gigi yaitu belum semua rumah sakit melakukan pemilahan limbah medis sesuai jenisnya dan belum terdapat data penurunan limbah. Kategori input dalam pengelolaan limbah medis di klinik gigi terdapat kekurangan dalam hal pelatihan, saran prasarana, POS dan pembiayaan. Kategori proses di klinik gigi yaitu pengurangan, pemilahan, penyimpanan dan pengangkutan limbah medis yang belum sesuai standar. Kategori output di klinik gigi yaitu belum semua klinik gigi melakukan pemilahan limbah medis sesuai jenisnya dan belum ada penurunan limbah. Kesimpulan : Rumah sakit gigi dan klinik gigi belum sepenuhnya melaksanakan rekomendasi dari WHO (2014) dan Peraturan Menteri Lingkungan Hidup dan Kehutannan nomor 56 tahun 2015 mengenai pengelolaan limbah medis.Keywords : pengelolaan limbah gigi, rumah sakit gigi, klinik gigi.
Co-Authors Agus Prasetya Herajeng Styamita Pradani Muhammad Sholeh Wiranto Wiranto