PENGOLAHAN LIMBAH LAUNDRY DENGAN METODE FENTON
Abstract
ABSTRAK : Saat ini penggunaan detergen semakin meningkat seiring dengan pertumbuhan jumlah penduduk setiap tahunnya, serta berkembang pesatnya usaha rumah tangga, termasuk jasa laundry. Deterjen adalah bahan kimia yang mengandung surfaktan, digunakan sebagai bahan pembersih rumah tangga, industri, dll. Air limbah laundry mengandung fosfat, amonia, nitrogen dan Total Suspended Solid (TSS), Turbidity dan kebutuhan Biological Oxygen Demand (BOD). dan kebutuhan Chemical Oxygen Demand (COD) dengan konsentrasi yang tinggi. Tujuan pengolahan limbah adalah untuk menghilangkan kontaminan dari limbah, baik industri maupun domestik. Metode Fenton merupakan salah satu kebaharuan teknologi Advance Oxidation Process (AOPs), dimana pada reaksi fenton akan terbentuk gugus radikal hidroksil yang dapat mendegradasi polutan organik dan anorganik yang terkandung dalam limbah cair. Hasil penelitian pengolahan limbah cair laundry dengan metode Fenton pada perbandingan rasio H2O2/COD memberikan efisiensi penyisihan COD tertinggi terjadi pada rasio 10:1 (g/g) dengan presentase penyisihan sebesar 78%, sedangkan untuk perbandingan rasio H2O2/Fe2+ memberikan efisiensi penyisihan COD tertinggi terjadi pada rasio 5:1 (g/g) dengan presentase penyisihan sebesar 84%. Menurut hasil pengolahan limbah cair laundry dengan metode fenton yang telah dilakukan, bahwa efektivitas reaksi pada fenton dipengaruhi oleh perbandingan rasio H2O2/COD dan perbandingan rasio H2O2/Fe2+
ABSTRACT : Currently, the usage of detergent has grown over time due to the increasing in people population and the quick expansion of businesses in residential areas, one of which is the laundry service industry. Detergent is a cleaning product with surfactants that is used in industrial, domestic, and other washing applications. High quantities of phosphate, ammonia, nitrogen, and Total Suspended Solid (TSS), as well as turbidity, Biological Oxygen Demand (BOD), and chemical oxygen demand (COD) are found in the waste water produced by laundry activities. The Fenton technique is one of the advancements of the Advance Oxidation Process (AOPs) technology. In the Fenton method, hydroxyl radical groups are created by a reaction between hydrogen peroxide (H2O2) and ferrous ion Fe2+ that can oxidize both organic and inorganic molecules in wastewater. According to study on laundry wastewater treatment using the Fenton technique, the highest COD removal efficiency was found at a ratio of 10:1 (g/g), with a removal percentage of 78% while the COD removal efficiency was found for the comparison of the H2O2/Fe2+ ratio. the greatest occurred at a 5:1 (g/g) ratio with an 84% elimination rate. In conclusion, the H2O2/COD ratio and the H2O2/Fe2+ ratio have an impact on how well the reaction on the Fenton works according to the results of the Fenton method used to treat the laundry wastewater.
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References
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