(1) Natural decomposition method: volatilization method; biological decomposition method; oxidation method; photolysis method. (2) Oxidation method: alkaline chlorination method: chlorine gas method, hypochlorite method, electrolytic regeneration method; SO 2 -air method; ozonation method; hydrogen peroxide method; acidification-volatilization-re-neutralization-AVR method ; assay: iron sulfide, ion exchange and acid regeneration process, ion flotation; electrolysis; transformation - precipitation method: into thiocyanate, ferrocyanide into - ferricyanide. Our electric triccyle, we do three colors: black, red, and blue.The motor is able to do 650W,800W,1000W and 1200w.We can to the battery in 48V and 60V. Our cargo box size is 1.0 X 0.95 and 1.5 x 0.95 m. Our electric tricycles are good prices to be suitable to aisa,middle east and south america market. Electric Tricycle,Electric 3-Wheeler,Electric Cargo Trike,Battery Tricycle JIANGMEN CHANGHUA GROUP CO., LTD. , https://www.changhuagroup-motor.com