Abstract
Multi Soil Layering (MSL) system is a method of wastewater treatment that increase the soils function to purify wastewater. In the construction of MSL, soils mixed with the charcoal and then filled into the box of size 50x14x50 cm in layers structured like brick pattern. The aims of this research are to determine the concentration of BOD and COD on textile industrial wastewater before and after the process by MSL method. It also determines the optimal loading rate of wastewater on the MSL system, and then it can determine the efficiency of MSL system on reducing the concentration of BOD and COD on textile industrial wastewater. The method which used in this research is an experimental method. The wastewater on the MSL system is loaded on the loading rate variety: 160, 320, 480, 640, and 800 L m-2 day-1. The efficiency of MSL system to removing BOD and COD on textile industrial wastewater are determined on optimal loading rate. The research gave result that MSL method could remove BOD and COD on textile industrial wastewater on the optimal loading rate 320 L m-2 day-1. The efficiency of MSL system in removing BOD and COD on textile industrial wastewater are 96.52 and 80.87% respectively. This indicated that the method MSL serve the purpose of effective alternative method in processing of liquid waste textile industry.
Highlights
system is a method of wastewater treatment that increase the soils function to purify wastewater
into the box of size 50x14x50 cm in layers structured like brick pattern
The aims of this research are to determine the concentration of BOD
Summary
Instrumen sistem MSL dibuat dengan konstruksi seperti dapat dilihat pada Gambar 1. Penentuan nilai BOD dan COD dalam limbah cair industri tekstil sebelum diolah (treatment) dengan sistem MSL. 2. Air limbah diisikan ke dalam sistem MSL selama 24 jam per hari pada berbagai variasi kecepatan pengisian (160, 320, 480, 640, 800 Lm-2h-1). 3. Penentuan nilai BOD dan COD dalam limbah cair industri tekstil pada berbagai variasi kecepatan pengisian setelah diolah (treatment) dengan sistem MSL. BOD dan COD dalam limbah cair industri tekstil pada berbagai variasi kecepatan pengisian. Penentuan Efisiensi Sistem MSL untuk Menurunkan BOD Dan COD Limbah Cair Industri Tekstil. Kadar COD dapat dihitung dengan rumus : Analisis Data Data yang dikumpulkan adalah nilai BOD dan COD limbah cair tekstil sebelum dan setelah dilakukan pengolahan dengan sistem MSL. Kecepatan pengisian optimum inilah yang selanjutnya digunakan untuk menentukan efisiensi sistem MSL dalam menurunkan nilai BOD dan COD limbah cair industri tekstil
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