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All Journal Jurnal Teknologi Lingkungan Universitas Trisakti
Mawar DS Silalahi
Jurusan Teknik Lingkungan, Fakultas Arsitektur Lansekap dan Teknologi Lingkungan, Universitas Trisakti
Environmental Science

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PENGOLAHAN AIR LIMBAH EMULSI MINYAK-DETERJEN DENGAN PROSES ELEKTROKOAGULASI MENGGUNAKAN ELEKTRODA ALUMINIUM Iswanto, Bambang; Silalahi, Mawar DS; Purnama, Fiqqy Dwinarizki
Jurnal Teknologi Lingkungan Universitas Trisakti Vol 5, No 2 (2009): DESEMBER 2009
Publisher : Jurnal Teknologi Lingkungan Universitas Trisakti

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Abstract

Wastewater Treatment for Detergen-Oil Emulsion with Electrocoagulation Process using Aluminium Electrode. Household waste water consists mainly of oil and detergent which can give a bad impact for the environment, hard elaborated by microorganisms. This research executed with the waste treatment process electrocoagulation continuing using electrocoagulation reactor in laboratory scale. In this process is used to increase the concentration of NaCl Dissolved Aluminium decomposition, variation detergent 10 mg/L, 30 mg/L and 50 mg/L with 1 ml of oil comparison, variations in the concentration of NaCl used was 0 g/L, 0.5 gr / L, 1 g / L and the variation of time to stay 45 seconds, 55 seconds, 60 seconds and variations rapid mixing 150 rpm, 180 rpm, 200 rpm. Rapid mixing in floculation unit is 20 rpm with a settling time for 2 hours. In the research results obtained with the optimum operating conditions the concentration of NaCl 0.5 gr/L, rapid mixing of 150 rpm and detention time 45 seconds, with detergen concentration 10 mg/L COD was 92.68%, BOD 83.60%, TSS 93.52%, Detergent 99.29 %, Oil and Grease 94.55%, TKN 90.40%, VSS 93.49%,Total Phosphat 88.92%, Turbidity 98.43%, Dissolved Aluminium 0,02 mg / L. From optimum condition which in obtaining upper to be applicable in domestic sewage.
PENGOLAHAN AIR LIMBAH DOMESTIK DENGAN PROSES ELEKTROKOAGULASI MENGGUNAKAN ELEKTRODA ALUMINIUM Studi Kasus: Limbah Cair Gedung Syarif Thajeb (M), Universitas Trisakti Iswanto, Bambang; Silalahi, Mawar DS; Ayuningtyas, Utari
Jurnal Teknologi Lingkungan Universitas Trisakti Vol 5, No 1 (2009): JUNI 2009
Publisher : Jurnal Teknologi Lingkungan Universitas Trisakti

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Abstract

Domestic waste water treatment according to electrocoagulation process with allumunium electrode. The treatment condition is not working well, because of the smell bad, polluter, and the effluent have nondegradable material (COD and VSS) with high concentration, that is COD and VSS in the amount of 6727,27 mg/L and 2915 mg/L. This Research exactly do it processes domestic wastewater according to elektrocoagulation process on laboratorium scale. NaCl concentrated variation, is using 0 gr/L, 0,5 gr/L, 1 gr/L and detention time (td) variation, is using 45 second, 55 second, 60 second, with rapid mixing variation are 150 rpm, 180 rpm, 200 rpm. Rapid mixing in flocculation unit is 20 rpm and detention time of sedimentation is 2,26 – 3,02 hours. Research result get optimum operational condition with NaCl concentrated 0,5 gr/L, rapid mixing 180 rpm, and detention time 55 second, with % removal COD is 95,43%, BOD 95,05%, TSS 98,98%, Detergen content 90,08%, Oil and Grease 84,10%, TKN 65,30%, VSS 99,21%, Phosphate 62,88% and Turbidity 96,30%. If with NaCl concentrated 0 gr/L, rapid mixing 180 rpm, and detention time 55 second (as aqualizer), with % removal COD is 95,54%, BOD 95,93%, TSS 98,94%, Detergent 86,92%, Oil and Grease 31,80%, TKN 59,70%, VSS 99,38%, Phosphate 25,34% and Turbidity 98,70%.  Abstract in Bahasa Indonesia:  Kondisi IPAL Gedung Syarif Thajeb (M) saat ini kurang berjalan maksimal karena sering menimbulkan bau dan effluent memiliki kandungan materi nondegradable (COD dan VSS) yang masih menunjukkan konsentrasi yang tinggi, yaitu COD dan VSS sebesar 6727,27 mg/L dan 2915 mg/L. Sehingga dalam penelitian ini dilakukan pengolahan limbah dengan proses elektrokoagulasi secara kontinue dengan menggunakan reaktor elektrokoagulasi dalam skala laboratorium. Pada proses ini digunakan konsentrasi NaCl untuk memperbesar penguraian Al terlarut, variasi konsentrasi NaCl yang digunakan adalah 0 gr/L, 0,5 gr/L, 1 gr/L dan variasi waktu tinggal 45 detik, 55 detik, 60 detik serta variasi kecepatan pengadukan 150 rpm, 180 rpm, 200 rpm. Kecepatan pengadukan di unit flokulasi adalah 20 rpm dengan waktu pengendapan selama 2 jam. Pada hasil penelitian diperoleh kondisi operasional optimum dengan konsentrasi NaCl 0,5 gr/L, kecepatan pengadukan 180 rpm dan waktu tinggal 55 detik, dengan % penyisihan COD sebesar 95,43%, BOD 95,05%, TSS 98,98%, Detergen 90,08%, Minyak Lemak 84,10 %, TKN 65,30%, VSS 99,21%, Total Phosphat 62,88% dan Kekeruhan 96,30%. Sedangkan jika digunakan dengan konsentrasi NaCl 0 gr/L, kecepatan pengadukan 180 rpm dan waktu tinggal 55 detik (sebagai pembanding), maka % penyisihan COD sebesar 95,54%, BOD 95,93%, TSS 98,94%, Detergen 86,92%, Minyak Lemak 31,80%, TKN 59,70%, VSS 99,38%, Total Phosphat 25,34% dan Kekeruhan 98,70%.
Co-Authors Bambang Iswanto Fiqqy Dwinarizki Purnama Laila Fitria Linardita Ferial, Linardita Utari Ayuningtyas