Rekayasa alat daur ulang limbah padat industri penyamakan kulit untuk pembuatan insol dan kertas karton

The aim of engineering of equipment for tannery solid waste reuse to make insole and card board was to assist the problem coming from shavings wastes and sludge. This unit was designed and mainly consisted of three parts, those were raw materials destroying machine (beater type), insole/carton sheet printing machine and insole/carton sheet pressing machine. This was an eco-friendly machine, because it was able to recycle all of the excess raw materials. The product capacity of it was 600 kg of raw material to produce 1,200 sheet per day, with assumption that the rejects were varied from 10 ? 15%. The specifications of the insole produced by this machine were that the weight was 416 gr/sheet; the length x wide was 78 cm x 66 cm. based on the economical analysis when the marketing price was Rp. 2.000,- per sheet, with the total production 360,000 sheets, the benefit after property was Rp. 33,650,200,- per year, with 2 years 1 month pay back of the investment.