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Journal : EnviroScienteae

PENINGKATAN KUALITAS EFLUEN SISTEM LUMPUR AKTIF LIMBAH CAIR INDUSTRI TAHU DENGAN VARIASI BERAT ARANG AKTIF TERHADAP VOLUME EFLUEN MENGGUNAKAN ARANG AKTIF KAYU ULIN (Eusideroxylon zwageri) Handayani Handayani; Danang Biyatmoko; Abdullah Abdullah; Jamzuri Hadie
EnviroScienteae Vol 12, No 3 (2016): Enviroscienteae Volume 12 Nomor 3, November 2016
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v12i3.2448

Abstract

The purpose of this study was to (1) analyze the effect of the activation of iron wood charcoal towards improving the quality of activated charcoal based on moisture content, ash content and adsorption I2, (2) analyze the effect of weight variation activated iron wood charcoal in the activated sludge effluent to temperature parameter, TSS, pH, BOD5, COD and Ammonia, as well as getting the weight ratio of optimum active iron wood charcoal toward activated sludge effluent.  The research design used a completely randomized design. The variation of weight variation of active charcoal from 0, 1, 2, 3, 4, 5 and 6 g with 3 (three) repetitions. This Research was done at the laboratory of Badan Lingkungan Hidup Banjarbaru. The conclusion of this study was that the effect of the activation of ironwood charcoal towards improvement of the quality of activated charcoal were moisture content, ash content and adsorption I2 obtained before activation was 3,02%; 2,41% and 609 mg/g, while moisture content, ash contents and adsorption I2 after being activated were 2,88%; 2,02 % and 685 mg/g. The moisture content and ash contents had reached the quality standard of SNI 06–3730-1995, but the adsorption I2 not yet. The eEffect of weight variation activated charcoal ironwood in the effluent sludge to the temperature, TSS, pH, BOD5, COD and ammonia parameter based on F-test results were highly significant (p<0,01). The parameter of temperature and pH increased as the weight of activated charcoal ironwood increased. The parameter of TSS, BOD5, COD and ammonia decreased as the weight of activated ironwood charcoal. The Parameter that did not reach the quality standard were COD and Ammonia. Optimum weight activated charcoal ironwood active against effluent activated sludge of 6 g. Optimum weight activated ironwood charcoal obtained temperature, TSS, pH, BOD5, COD and ammonia. The values of each were  27,7 0C; 35,7 mg/L; 9,01; 44,2 mg/L; 108 mg/L and 15,2 mg/L.
Sintesis Dan Karakterisasi Urea-Hidroksiapatit Dengan Variasi Ca(OH)2 Sebagai Kandidat Pupuk Lepas Lambat Syahiful Hadi; Suryajaya Suryajaya; Abdullah Abdullah; Kissinger Kissinger
EnviroScienteae Vol 15, No 1 (2019): EnviroScienteae Volume 15 Nomor 1, April 2019
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1031.172 KB) | DOI: 10.20527/es.v15i1.6331

Abstract

Urea-hydroxyapatite can be used as fertilizer which was efficient and environmentally friendly. The variation of Ca(OH)2 in the urea-hydroxyapatite’s synthesis and its characterization would provide information for manufacturing slow release fertilizer. The material used were urea (99.5 %); Ca(OH)2; H3PO4 0.67 M and distilled water. The synthesis technique used in this study is bottom-up with Ca(OH)2 variation of 6, 8, 10 and 12 grams. The results of the synthesis with 6 grams of Ca(OH)2  was not able to produce sediment powder. The results of the Scanning Electron Microscopy (SEM) showed that the urea packaging with hydroxyapatite was better for variations of Ca(OH)2  8 grams and 10 grams. The results of the Energy Dispersive X-Ray Spectrometry (EDX) showed more elemental composition in the variation of Ca(OH)2  8 grams and 10 grams which were 35.7 Wt% and 40.4 Wt%. The results of the Fourier Transform Infrared Spectrometer (FTIR) showed that the variation of Ca(OH)2  8 gram has a good bonding of urea and hydroxyapatite. The Particle Size Analyzer (PSA) measurement for all samples of urea-hydroxyapatite yielded the particle size of about 0.5–2.5 mm and 10–15 mm for urea and hydroxyapatite, respectively. As a conclusion, the variation of Ca(OH)2  8 grams could be recommended as a reference in the composition of urea-hydroxyapatite fabrication for slow release fertilizer.
PENINGKATAN KUALITAS EFLUEN LIMBAH CAIR INDUSTRI TAHU PADA SISTEM LUMPUR AKTIF DENGAN VARIASI LAJU ALIR MENGGUNAKAN ARANG AKTIF KAYU ULIN (Eusideroxylon zwageri) Filomena Matilda; Danang Biyatmoko; Akhmad Rizali; Abdullah Abdullah
EnviroScienteae Vol 12, No 3 (2016): Enviroscienteae Volume 12 Nomor 3, November 2016
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v12i3.2446

Abstract

Tofu industry produces organic waste that can decrease the quality of the environment. The alternative processing method can be used among others is activated sludge system, but several types of research have not shown optimal results yet. To improve the quality of wastewater, the treatment of wastewater of tofu using activated charcoal needs to be done. The purpose of this research is to analyze the effects of the ironwood charcoal activation on the morphology and surface area of  ironwood activated charcoal, to analyze the effects of variations in the flow rate of tofu wastewater effluent from activated sludge using ironwood activated charcoal on the parameters of temperature, pH, TSS, BOD, COD and ammonia and to find out the optimum flow rate of tofu wastewater effluent from activated sludge using ironwood activated charcoal. This research used adsorption method with column system at 7 treatments of flow rate (50, 60, 70, 80, 90, 100 and 110 mL/h) with 3 replications. The activation of ironwood charcoal used Na2CO3 5% and was activated at 400oC. The results showed that the surface morphology of ironwood active charcoal had more open pore surfaces with more regular structures than before activation. The surface area of ironwood activated charcoal was 32.936 m2/g and increased to 53.7% compared with it before activation. Variations in the flow rate on the tofu wastewater effluent from activated sludge using ironwood activated charcoal showed highly significant (p < 0.01) in reducing the levels of TSS, BOD, COD, and ammonia. The optimum flow rate obtained at 50 mL/h with temperature was 25.8oC, pH 8.08, TSS 34.7 mg/L, BOD 43.8 mg/L, COD 117 mg/L and ammonia 14.8 mg/L. The value of temperature, pH, TSS and BOD have fulfilled the quality standards, the quality of tofu wastewater effluent increased from the activated sludge.