Technical and economical potential of textile industry effluent wastewater treatment plant for water re-use using carbon active application

Abstract

The process production of textile industry especially dyeing can not be separated from the use of clean water and high wastewater pollutant produced. The study and research of potential wastewater recycling using carbon active processing have technical and economical potential to be an inspiration for industries, and the public to do waste water. The experimental application of this activated carbon using a tank size of 78 liters with 50 liter of activated carbon content, contact time 10-20 minutes. Inlet – outlet analysis can measure effectiveness of carbon active value to decrease COD (chemicals oxigen demand), colour, TDS (Total disolved solid), TSS (Total suspended solid), and pH. Carbon active process decreased COD contamination up to 96%, with value COD average 97 ppm become 5.5 ppm. Carbon active process decreased TSS up to 92%, from average 12 ppm become 1 ppm. This system also can decrease colour average 98%, from average 226 ppm become 4 ppm. Carbon active process has little effect on TDS and pH value, but TDS and pH values still meet the standard. The calculation of the economic value derived from the calculation of active carbon projection, which uses a projection of 12.5 m3 / h, shows the cost of 3 800 per m3. This recycling process could improve process efficiency and saved production costs, price municipal water for industrial is around 12 000 per m3, which mean saved production cost around 8 200 rupiahs per m3.