Abstract
Experiments for liquid-waste treatment have been carried out using the cavitation type liquid-waste treatment system by ozone for the kitchen liquid waste at a restaurant industry. As a result, when bath type system was used, n-Hexane, BOD and SS have been able to be reduced by 85 %, 49 % and 85 % respectively. Using the existing treatment establishment, the rate of decomposition for Oil component by this system by ozone is higher in comparison with the biological treatment system by MM-organisms. The weight of scum being produced as by-products in this system was about 10 % of the weight being produced by the biological treatment system. Therefore, it has been shown that this system is effective in the decomposition of waste sludge.
