Thus, the permanent make up, so experiment to find the proportion of waste water with pH as a base Tan to extract Chitosan to modify the pH of the water environment, improved from the original. The experimental extract Chitosan by 0.5 ounces whole crab and shrimp shells from the armature. Where the proportion of wastewater per extract Chitosan is 4,000 ml per 0.5 grams.
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