Environmental pollution and climate change have been influenced to water sources for people, especially the central region. Thus, the study of water treatment material available, inexpensive is urgently needed. The study focused on three goals: (1) determine the structure of dry powder of Cactus, (2) determine the optimal values: pH, dosage, stirring speed and time to stir, and (3) the ability to remove turbidity, temperature and COD on a number of samples of natural water. Performance of dry powder of Cactus that she is done with the Jartest device on the model and artificial surface water turbidity. In artificial water samples in the range 100-300NTU results the optimal value as follows: pH in the range of 7-7.5, flocculation dose increases opacity from 30-45 mg/l, stir speed is 30 rounds/min with stirring time 10 minutes. Three natural surface water samples 160-261NTU effectively reduce turbidity, temperature and COD by up to 80%. Besides, the Cactus she has the ability to remove disease-causing microorganisms such as e. coli and Coliform with performance up to over 60%. By turbidity in the majority of the country's main river year round are on the 50NTU, especially in the flood season as up to 500-600NTU, the handling of water by the Cactus she can is quite appropriate because the methods make use of the available raw materials and safe
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