This project aims to invent the wastewater treatment machine and to studies the performance of coliform bacteria disinfection by mixing clear coating with Nano ZnO coated on a propeller and inside the bucket. Use ultraviolet light to catalysis Nano ZnO and disinfects coliform bacteria. The activated charcoal box was used to absorb the waste gas from Hydrogen sulfide (H2S) by suck the air pass through the tube that contains activated carbon.